Document type:	OGC Standard
Document subtype:	Encoding
Document stage:	Approved for Public Release
Document language:	English

i. Abstract

JavaScript Object Notation (JSON) [NR1] has been gaining in popularity for encoding data in Web-based applications. JSON consists of sets of objects described by name/value pairs. This OGC standard describes a GeoJSON [NR2] and JSON-LD [NR3] encoding for Earth Observation (EO) metadata for datasets (granules). This standard can be applied to encode metadata based on the Earth Observation Metadata Profile of Observations and Measurements (O&M) OGC 10-157r4 [OR1] or as an encoding of the Unified Metadata Model for Granules (UMM-G) conceptual model [OR2].

The GeoJSON encoding defined in this document is defined as a compaction[1] through a normative context, of the proposed JSON-LD encoding, with some extensions as presented in section 8 of this document. Therefore, the JSON-LD encoding can also be applied to other RDF [OR8] encodings including RDF XML [OR11] and RDF Turtle [OR12].

This document makes no assumptions as to the "service" interfaces through which the metadata are accessed and applies equally well to a Service Oriented Architecture as well as a Resource Oriented or RESTful Architecture. The documented approach can be applied in combination with the following technologies:

OGC OpenSearch extensions [OR19], [OR20], [OR25],
W3C Linked Data Platform [OR21], [OR22],
OASIS searchRetrieve [OR23],
OASIS OData [OR24].

GeoJSON is a format for encoding collections of simple geographical features along with their non-spatial attributes using JSON. GeoJSON objects may represent a geometry, a feature, or a collection of features. GeoJSON supports the following geometry types derived from the OGC Simple Features specification: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon and GeometryCollection. Features in GeoJSON contain a geometry object and additional properties, and a feature collection represents a list of features.

JSON is human readable and easily parseable. However, JSON is schemaless. JSON and GeoJSON documents do not include an explicit definition of the structure of the JSON objects contained in them. Therefore, this standard is based on a normative JSON-LD context which allows each property to be explicitly defined as a URI. Furthermore, the JSON encoding is defined using JSON Schema [OR18] which allows validation of instances against these schemas.

ii. Keywords

The following are keywords to be used by search engines and document catalogues

ogcdoc, ogc documents, Earth Observation, EO, Linked Data, Datasets, GeoJSON, JSON, JSON-LD, Metadata

iii. Preface

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The Open Geospatial Consortium shall not be held responsible for identifying any or all such patent rights.

Recipients of this document are requested to submit, with their comments, notification of any relevant patent claims or other intellectual property rights of which they may be aware that might be infringed by any implementation of the standard set forth in this document, and to provide supporting documentation when possible.

iv. Submitting organisations

The following organisations will submit the original document or its revisions to the Open Geospatial Consortium (OGC):

CEOS – Committee on Earth Observation Satellites
CGI
Con terra
ESA – European Space Agency
EUMETSAT
Spacebel s.a.

The editors would like to acknowledge that this work is the result of collaboration and review of many organisations and would like to thank for the comments and contributions from:

DLR
GeoSolutions
VITO

Note: this acknowledgement does not imply an endorsement by these organisations.

v. Submitters

All questions regarding this submission should be directed to the editor or the submitters:

Name	Affiliation
Yves Coene	Spacebel s.a.
Uwe Voges	con terra
Olivier Barois	ESA
Andrea Della Vecchia	ESA
John Taylor	CGI
Michael Schick	EUMETSAT

1 Scope

This OGC standard defines a GeoJSON [NR2] and JSON-LD [NR3] encoding of Earth Observation (EO) metadata for datasets (i.e., products or granules). The standard provides document models for the exchange of information describing EO datasets, both within and between different organisations.

The document model is derived from the conceptual models defined in the Earth Observation Metadata Profile of Observations and Measurements (O&M) OGC 10-157r4 [OR1], and the Unified Metadata Model for Granules (UMM-G) [OR2], depicted below.

Figure : EO Metadata Profile of O&M Conceptual Model from [OR1]

Please note that the proposed encoding can also be applied to EO dataset metadata originally encoded according to other models, including ISO-19139 [OR27], ISO-19139-2 [OR28], etc. The mapping between UMM-G to these encodings can be found in [OR2] while this document defines the GeoJSON to UMM-G model. Future versions of this document may contain mappings to ISO models as annexes.

Figure : Unified Metadata Model for Granules [OR2]

1.1 Design Approach and Rationale

This section is non-normative.

The metadata encoding defined in the document satisfies the following design goals.

Feature-based GeoJSON model: The model maximizes reuse of pre-existing standardized property names. Wherever possible, existing properties from GeoJSON [NR2] and OWS Context [NR5] are used for modeling EO product properties instead of new EO-specific property names. These are then are grouped under either feature.properties, feature.properties.[acquisitionInformation], or feature.properties.productInformation.
Simplicity: This document does not describe the full information models or XML encodings referred to above. The above standards (i.e., OGC 10-157r4 and UMM-G) should be referred to for these details. This standard intends to provide a simpler, overarching exchange format integrating comments from the Committee on Earth Observation Satellites (CEOS) Working Group on Information Systems and Services (WGISS) community, which supported the submission of this standard to the OGC.
Multiple use cases: The metadata model supports metadata for an acquisition (e.g., planned or acquired), for a simple product derived from one acquisition (planned, acquired or archived), or for a synthesis product (i.e., derived from multiple acquisitions over a certain period of time or from acquisitions by multiple sensors).

1.2 Document Outline

Hereafter a brief outline of the document content allows readers to jump directly to the topic of their interest.

Chapter 3 lists the normative and informative references used in this document.
Chapter 4 defines the main terms used in the document.
The conventions used in this document are explained in Chapter 5.
Chapter 6 gives an overview.
Chapter 7 specifies the proposed GeoJSON encoding.
Chapter 8 describes how the encoding can be extended with additional properties and describes the extension to JSON-LD which allows for describing multi-dimensional arrays as allowed by GeoJSON.
Chapter 9 provides information about the expected MIME media types which correspond to the proposed encodings.
Chapter 10 describes future work.

Finally, the following information is provided in the Annexes:

Annex A defines the Abstract Test Suite for the standard.
Annex B includes normative JSON-LD @context definitions that allow interpreting the GeoJSON encoding as JSON-LD. It also formally defines the EO vocabulary (i.e., RDF properties and classes) in RDF Schema format.
Annex C presents the mapping of the EO properties proposed in this specification to the OGC 10-157r4 and UMM-G conceptual models.
Annex D contains the complete listing of examples illustrating the encodings defined in this document.
Annex E includes the JSON schema definitions defining the GeoJSON encoding.
Annex F explains where the schema file, context files and examples can be found in the OGC schema repository.
Annex G provides the revision history of this document.

2 Conformance

2.1 Conformance to base specifications

This section describes the compliance testing required for an implementation of this standard.

2.2 Conformance classes

The framework, concepts, and methodology for testing and the criteria to be achieved in order to claim conformance are specified in the OGC Compliance Testing Policies and Procedures and the OGC Compliance Testing web site[2].

Annex A defines a set of tests and conformance classes that will support various applications with a range of different requirements. The following conformance classes are distinguished. Testing is based on data validation. In order to conform to this OGC standard, an implementation shall choose to implement one or more of the conformance classes specified in Annex A (normative).

Table : Conformance classes related to data instances
Conformance Class	Description	Clause
/conf/core	Single EarthObservation object or collection of EarthObservation objects.	Sections 7.1 and Section 7.8
/conf/earthobservation	EarthObservation objects.	Section 7.1
/conf/properties	Properties objects.	Section 7.1.1
/conf/links	Links objects.	Section 7.1.2
/conf/offering	Offering objects.	Section 7.1.4
/conf/metadata-information	MetadataInformation objects.	Section 7.2
/conf/data-identification	DataIdentification objects.	Section 7.3
/conf/geometry	Geometry objects.	Section 7.4
/conf/acquisition-information, /conf/acquisition-parameters	AcquisitionInformation and AcquisitionParameters objects.	Section 7.6
/conf/product-information	ProductInformation objects.	Section 7.7
/conf/earthobservation-collection	EarthObservationCollection objects.	Section 7.8

3 References

The following normative documents contain provisions that, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the normative document referred to applies.

3.1 Normative references

[NR1] RFC 7159, The JavaScript Object Notation (JSON) Data Interchange Format, 2014, http://www.ietf.org/rfc/rfc7159.txt

[NR2] RFC 7946, The GeoJSON Format, 2016, https://tools.ietf.org/html/rfc7946

[NR3] JSON-LD 1.0, A JSON-based Serialisation for Linked Data, W3C Recommendation, 2014, http://www.w3.org/TR/json-ld/

[NR5] OGC 14-055r2, OGC OWS Context GeoJSON Encoding, 2017, http://docs.opengeospatial.org/is/14-055r2/14-055r2.html

[NR6] OGC 06-121r9, OGC Web Services Common Standard, Version 2.0.0, 2010, http://portal.opengeospatial.org/files/?artifact_id=38867

[NR7] RFC 3986, Uniform Resource Identifiers (URI): Generic Syntax, 2005 http://www.ietf.org/rfc/rfc3986.txt

[NR8] RFC 3987, Internationalised Resource Identifiers (IRIs), 2005, https://tools.ietf.org/html/rfc3987.

[NR9] RFC 2616, Hypertext Transfer Protocol – HTTP/1.1, 1999, http://www.ietf.org/rfc/rfc2616.txt

[NR11] RFC 5988, Web Linking, 2010, http://www.ietf.org/rfc/rfc5988.txt

[NR12] ECMA International, "ECMAScript Language Specification, Edition 5.1", Standard ECMA-262, 2011, http://www.ecma-international.org/publications/standards/Ecma-262.htm

[NR13] The JSON Data Interchange Format, 2017, http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf

3.2 Other references

[OR1] OGC 10-157r4, Earth Observation Metadata profile of Observations & Measurements, Version 1.1, 2016, http://docs.opengeospatial.org/is/10-157r4/10-157r4.html.

[OR2] Unified Metadata Model for Granules (UMM-G), Version 1.3, 2015, https://wiki.earthdata.nasa.gov/display/CMR/CMR+Documents.

[OR3] Unified Metadata Model Common Elements, Version 1.4, 2016, https://wiki.earthdata.nasa.gov/display/CMR/CMR+Documents.

[OR4] Unified Metadata Model for Collections (UMM-C), Version 1.3, 2015, https://wiki.earthdata.nasa.gov/display/CMR/CMR+Documents.

[OR5] OGC 12-084r2, OWS Context Atom Encoding Standard, 2013, http://docs.opengeospatial.org/is/12-084r2/12-084r2.html

[OR6] OGC 15-053, Implementing JSON/GeoJSON in an OGC Standard ER, 2015

[OR7] OGC 11-052r4, OGC GeoSPARQL – A Geographic Query Language for RDF Data, Version 1.0, 2012, https://portal.opengeospatial.org/files/?artifact_id=47664

[OR8] RDF 1.1 Primer, W3C Working Group Note 2014, http://www.w3.org/TR/rdf11-primer/

[OR9] RDF 1.1 Concepts and Abstract Syntax, W3C Recommendation, 2014, http://www.w3.org/TR/rdf11-concepts/

[OR10] RDF Schema 1.1, W3C Recommendation, 2014, http://www.w3.org/TR/rdf-schema/

[OR11] RDF 1.1 XML Syntax, W3C Recommendation, 2014, http://www.w3.org/TR/rdf-syntax-grammar/

[OR12] RDF 1.1 Turtle, Terse RDF Triple Language, W3C Recommendation, 2014, http://www.w3.org/TR/turtle/

[OR13] JSON-LD 1.0 Processing Algorithms and API, W3C Recommendation, 2014, https://www.w3.org/TR/json-ld-api/

[OR14] RFC 4287, The Atom Syndication Format, 2005, https://tools.ietf.org/html/rfc4287

[OR15] Building JSON-LD APIs: Best Practices, Draft Community Group Report, 2016, http://json-ld.org/spec/latest/json-ld-api-best-practices/

[OR16] Google JSON Style Guide, Revision 0.9, https://google.github.io/styleguide/jsoncstyleguide.xml

[OR17] RDF Calendar - an application of the Resource Description Framework to iCalendar Data, W3C Interest Group Note, 2005, http://www.w3.org/TR/rdfcal/

[OR18] JSON Schema, https://tools.ietf.org/html/draft-zyp-json-schema-04.

[OR19] OGC 10-032r8, OGC OpenSearch Geo and Time Extensions, 2014, http://www.opengeospatial.org/standards/opensearchgeo

[OR20] OGC 13-026r8, OGC OpenSearch Extension for Earth Observation Products, 2016, http://docs.opengeospatial.org/is/13-026r8/13-026r8.html.

[OR21] Linked Data Platform 1.0, W3C Recommendation, 2015, http://www.w3.org/TR/ldp/

[OR22] Linked Data Platform Paging 1.0, W3C Working Group Note, 2015, http://www.w3.org/TR/ldp-paging/

[OR23] OASIS searchRetrieve: Part 0. Overview, OASIS Standard, 2013, http://docs.oasis-open.org/search-ws/searchRetrieve/v1.0/os/part0-overview/searchRetrieve-v1.0-os-part0-overview.html.

[OR24] OASIS OData Version 4.0 : Part 1. Protocol, OASIS Standard, 2014, http://docs.oasis-open.org/odata/odata/v4.0/os/part1-protocol/odata-v4.0-os-part1-protocol.html

[OR25] OpenSearch 1.1 draft 5, http://www.opensearch.org/Specifications/OpenSearch/1.1.

[OR26] ISO 19115:2003/Cor 1:2006, Geographic Information – Metadata – Implementation specification, 2006, http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=44361

[OR27] ISO 19139, Geographic Information – Metadata XML (ISO 19139:2007), 2007, http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=32557

[OR28] ISO 19139-2:2012, Geographic information – Metadata – XML schema implementation – Part 2: Extensions for imagery and gridded data, 2012, http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=57104

[OR29] Dublin Core Metadata Initiative term declarations represented in RDF schema language, http://dublincore.org/schemas/rdfs/.

[OR30] Media RSS Specification, Version 1.5.1, 2009, http://www.rssboard.org/media-rss

[OR31] SKOS Simple Knowledge Organization System Reference, W3C Recommendation, 2009, http://www.w3.org/TR/skos-reference/.

[OR32] JSON-LD 1.1, "A JSON-based Serialisation for Linked Data", W3C Editor’s Draft, 2018, https://www.w3.org/TR/json-ld11/.

[OR33] GeoJSON-LD Vocabulary, 2017, http://geojson.org/geojson-ld/, http://geojson.org/geojson-ld/vocab.rdf

[OR34] http://goessner.net/articles/JsonPath/index.html

4 Terms and definitions

This document uses the terms defined in Sub-clause 5.3 of OGC 06-121r9 [NR6], which is based on the ISO/IEC Directives, Part 2, Rules for the structure and drafting of International Standards. In particular, the word "shall" (not "must") is the verb form used to indicate a requirement to be strictly followed to conform to this standard.

For the purposes of this document, the following additional terms and definitions apply.

4.1 compaction

While expansion removes context from a given input, compaction’s primary function is to perform the opposite operation: to express a given input according to a particular context. Compaction applies a context that specifically tailors the way information is expressed for a particular person or application. This simplifies applications that consume JSON or JSON-LD by expressing the data in application-specific terms, and it makes the data easier to read by humans [OR13].

4.2 context

A set of rules for interpreting a JSON-LD document as specified in the section "The Context" of the JSON-LD specification [NR3].

4.3 dataset

Observation obtained by satellite instruments (OGC 10-140). See granule and product.

4.4 datastrip

A satellite acquisition. May consists of multiple scenes.

4.5 Domain (RDF)

Domain (rdfs:domain) is used to state that any resource that has a given property is an instance of one or more classes [OR10].

4.6 expansion

The algorithm that removes [JSON-LD] context is called expansion [OR13].

4.7 GeoJSON

A geospatial data interchange format based on Javascript Object Notation (JSON) [NR2].

4.8 granule

The smallest aggregation of data that can be independently managed. Granule usually matches the individual file of EO satellite data.

4.9 identifier

A character string that may be composed of numbers and characters that is exchanged between the client and the server with respect to a specific identity of a resource.

4.10 JSON

A lightweight, text-based, language-independent data interchange format, based on the Javascript programming language.

4.11 JSON Schema

JSON Schema is a JSON media type for defining the structure of JSON data. JSON Schema provides a contract for what JSON data is required for a given application and how to interact with it [OR18].

4.12 Product

A Product or a Dataset corresponds to an identifiable collection of data under one single identifier. It is independent of a physical form or an encoding even if it is normally distributed in a single file.

4.13 Range (RDF)

Range (rdfs:range) is used to state that values of a property are instances of one or more classes [OR10].

4.14 RDF Triple

An RDF triple consists of three components: the subject, the predicate and the object. An RDF triple is conventionally written in the order subject, predicate, object. [OR9].

4.15 scene

The result of cutting a datastrip into multiple parts

4.16 service interface

Shared boundary between an automated system or human being and another automated system or human being [ISO 19101].

4.17 swath

Area imaged on the surface by an Earth observation instrument.

4.18 synthesis products

Synthesis (or composite) products are products that are generated by combining information from multiple EO Products that are acquired over a certain period of time.

5 Conventions

This section provides details and examples for any conventions used in the document. Examples of conventions are symbols, abbreviations, use of XML schema, or special notes regarding how to read the document.

5.1 Abbreviated terms

Some frequently used abbreviated terms:

ALT ALTimetry

API Application Programming Interface

ATM ATMospheric

ATS Abstract Test Suite

CEOS Committee on Earth Observation Satellites

EO Earth Observation

EOP Earth Observation Product

GML Geography Markup Language

HMA Heterogeneous Missions Accessibility

HTTP HyperText Transfer Protocol

IRI Internationalised Resource Identifier

ISO International Organisation for Standardisation

JSON JavaScript Object Notation

JSON-LD JavaScript Object Notation for Linked Data

LDP Linked Data Protocol

LMB LiMB looking

OASIS Organization for the Advancement of Structured Information Standards

OGC Open Geospatial Consortium

O&M Observations and Measurements

OPT OPTical

OWC OGC Web Services Context

RDF Resource Description Framework

RDFS RDF Schema

REST Representational State Transfer

SAR Synthetic Aperture Radar

SI International System of Units (French: Système international d’unités)

SSP Synthesis and Systematic

UML Unified Modeling Language

UMM Unified Metadata Model

UMM-G Unified Metadata Model for Granules

URI Uniform Resource Identifier

URL Uniform Resource Locator

URN Uniform Resource Name

W3C World Wide Web Consortium

WGISS Working Group on Information Systems and Services

WKT Well-Known Text

XML eXtensible Markup Language

XSD XML Schema Definition Language

5.2 Symbols

5.2.1 JSON Schema diagrams

The schema diagrams[3] included in the document show the GeoJSON structure expressed in JSON Schema [OR18] and documented in Annex E.1.

Table : JSON Schema diagram symbols
JSON Schema Entity	Representation	Description
Definition		Definitions are shown as blue rectangles with solid borders.
Mandatory property		Mandatory properties are shown with solid borders.
Optional property		Optional properties are shown with dashed borders.
Property of type "Object" referring to a "Definition" of the Object.		The "Def" attribute inside a rectangle representing a property of type Object refers to the corresponding Object definition.
"All Of" operator		Contains one or more sub-schemas (definitions), added as children of the operator. An instance is valid if it is valid against all these sub-schemas.
"Any Of" operator		Contains one or more sub-schemas (definitions), added as children of the operator. An instance is valid if it is valid against at least one of these sub-schemas.
"One Of" operator		Contains one or more sub-schemas (definitions), added as children of the operator. An instance is valid if it is valid against exactly one of these sub-schemas.
Subschema (definitions)		The "Def" attribute inside a rectangle representing a (Sub) Schema refers to the corresponding Object definition.

5.2.2 JSONPath

The data dictionary tables in the current document use the JSONPath notation [OR34]. A brief overview of this notation is included in the table below which is taken from [OR34].

XPath	JSONPath	Description
/	$	the root object/element
.	@	the current object/element
/	. or []	child operator
//	..	recursive descent. JSONPath borrows this syntax from E4X.
*	*	wildcard. All objects/elements regardless their names.
[]	[]	subscript operator. XPath uses it to iterate over element collections and for predicates. In Javascript and JSON it is the native array operator.
\|	[,]	Union operator in XPath results in a combination of node sets. JSONPath allows alternate names or array indices as a set.
[]	?()	applies a filter (script) expression.

5.3 Namespace abbreviations

The following namespace abbreviations will be used in this document:

Table : Namespace abbreviations
Abbreviation	Full namespace URI	Reference
alt	http://www.opengis.net/alt/2.1/	[OR1]
atm	http://www.opengis.net/atm/2.1/	[OR1]
atom	http://www.w3.org/2005/Atom/	[OR14]
dct	http://purl.org/dc/terms/	[OR29]
eop	http://www.opengis.net/eop/2.1/	[OR1]
gj	https://purl.org/geojson/vocab#	[OR33]
gsp	http://www.opengis.net/ont/geosparql#	[OR7]
iana	http://www.iana.org/assignments/relation/	[NR11]
ical	http://www.w3.org/2002/12/cal/ical#	[OR17]
lmb	http://www.opengis.net/lmb/2.1/	[OR1]
media	http://search.yahoo.com/mrss/	[OR30]
opt	http://www.opengis.net/opt/2.1/	[OR1]
owc	http://www.opengis.net/ont/owc/1.0/	[OR5]
owl	http://www.w3.org/2002/07/owl#
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#	[OR11]
rdfs	http://www.w3.org/2000/01/rdf-schema#	[OR10]
sar	http://www.opengis.net/sar/2.1/	[OR1]
skos	http://www.w3.org/2004/02/skos/core#	[OR31]
xs	http://www.w3.org/2001/XMLSchema-datatypes#
xsd	http://www.w3.org/2001/XMLSchema#

5.4 Layout and identifiers

The normative provisions in the current document are denoted by the URI http://www.opengis.net/spec/eo-geojson/1.0. All requirements and conformance classes that appear in this document are denoted by relative URIs which are relative to this base URI.

5.5 Style

This document applies the "double quote" guideline defined in [OR16]: "If a property requires quotes, double quotes must be used. All property names must be surrounded by double quotes. Property values of type string must be surrounded by double quotes. Other value types (like boolean or number) should not be surrounded by double quotes."

5.6 Data dictionary tables

This document includes data dictionary tables with information as per sub-clause 5.5 of OGC 06-121r9 [NR6]. The following comments apply.

The mapping of property names (column 1) on properties of the abstract metadata models (OGC 10-157r4 and UMM-G) is included in Annex C. Column 1 provides the JSON property name as well as the corresponding JSONPath [OR34] expression.
Properties representing measurements (e.g., gml:measureType) are encoding in a simplified way. Only the value is represented as a numeric property. The unit of measure is implied and shall correspond to the SI^{^[4]} base unitor derived unit without prefix.

6 Overview

This standard defines a GeoJSON-based [NR2] serialization syntax for the Earth Observation Vocabulary (Annex B) that conforms to a subset of [NR3] syntax constraints but does not require JSON-LD processing. While other serialization forms are possible, such alternatives are not discussed in this document.

When serialized, absent properties are represented by either (a) setting the property value to null, or (b) by omitting the property declaration altogether at the option of the publisher. These representations are semantically equivalent. If a property has an array value, the absence of any items in that array shall be represented by omitting the property entirely or by setting the value to null. The appropriate interpretation of an omitted or explicitly null value is that no value has been assigned as opposed to the view that the given value is empty or nil.

JSON does not have a formal class model. JSON objects are just sets of properties. However, the JSON encoding described in this standard features a "type" property on each JSON object.

An EO Dataset Metadata Document conforming to this standard is a GeoJSON document whose root value is a Feature or FeatureCollection object, and whose MIME media type corresponds to one of the media types described in chapter 9.

6.1 JavaScript Object Notation

JavaScript Object Notation (JSON) is a lightweight, text-based, language-independent data interchange format that defines a small set of formatting rules for the portable representation of structured data. JSON is derived from the object literals of JavaScript, as defined in the ECMAScript Programming Language Standard [NR12] and can represent four primitive types (strings, numbers, boolean values, and null) and two structured types (objects and arrays). The ordering of the members or properties of any JSON object is considered irrelevant. Even though JSON is based on a subset of the JavaScript Programming Language it is currently well supported by nearly all programming languages, including Java, Python, and C#.

The JSON format is currently described by two competing standards, RFC7159 [NR1] and ECMA-404 [NR13]. Both standards documents are consistent, but the latter defines mainly the grammatical syntax where the former provides some additional semantic and security points.

6.2 GeoJSON Format Specification

GeoJSON [NR2] is a format for encoding collections of simple geographical features along with their non-spatial attributes using JSON. GeoJSON consists of a single object representing a geometry, feature, or collection of features. The geometries supported are Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon and Geometry Collections.

7 GeoJSON Encoding Specification

7.1 Requirements class: Earth Observation

Requirements Class
/req/earthobservation
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Dependency	/req/geometry
Dependency	/req/properties
Requirement	/req/earthobservation/properties

Requirement 1

/req/earthobservation/properties

An "EarthObservation" object shall implement the properties shown in Table 4, with the value matching the type shown, and with the obligation shown.

The EarthObservation block inherits all properties of the GeoJSON Feature object. In addition, it may contain an optional @context property. The @context properties shall typically be absent in the GeoJSON encoding and implicitly refer to the normative @context defined in Annex B.

Figure : EarthObservation Schema (GeoJSON)

Complete description of EarthObservation is given in Table 4. Most properties are inherited from the Feature object defined in [NR2].

Table : EarthObservation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
@context $.@context	Optional context property either embedding an actual context or a reference to the normative JSON-LD context defined in Annex B: "normative JSON-LD @context definition". See Annex B.1.1.	Property	Zero or one (optional)
type $.type	Type of the EarthObservation metadata element. This property is a string with fixed value "Feature"[5].	Property Range: String Fixed values: "Feature"	One (mandatory)
id $.id	Unique identifier for the EarthObservation element (IRI).	Property Range: String	One (mandatory)
bbox $.bbox	Information on the coordinate range of the geometry object representing the footprint (See [NR2]). The value is an array of length 4 (assuming the number of dimensions represented in the contained geometries is 2). Typically, south-west point and north-east point. The value defines a shape with edges that have constant longitude and latitude.	Property [NR2] Domain: Feature Range: Array	Zero or one (optional)
geometry $.geometry	Contains the description of the target location observed during the EarthObservation. See section 7.4. The value shall be either a Geometry object or a JSON null value.	Property [NR2], [OR33] Domain: Feature Range: Geometry or null value (See section 7.4)	One (mandatory)
properties $.properties	Groups all other properties of the EarthObservation not covered by the properties higher in this table as imposed by [NR2]. See section 7.1.1	Property [NR2], [OR33] Domain: Feature Range Properties (See Table 5)	One (mandatory)

Example 1: GeoJSON encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P
          &uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "bbox": [
      -2.69574,
      61.965195,
      0.135472,
      63.261372
   ],
   "geometry": {…},
   "properties": {…}
}

Example 2: GeoJSON encoding example (with explicit normative @context property)


{
   "@context": "https://www.opengis.net/eo-geojson/1.0",
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P
          &uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "bbox": [
      -2.69574,
      61.965195,
      0.135472,
      63.261372
   ],
   "geometry": {…},
   "properties": {…}
}

In the remainder of the document, we will not include the @context property in the GeoJSON encoding in which case it is implied as explained in Annex B.1.1.

7.1.1 Properties

Requirements Class
/req/properties
Target type	Data instance
Dependency	/req/acquisition-information
Dependency	/req/product-information
Dependency	/req/data-identification
Dependency	/req/metadata-information
Dependency	/req/links
Dependency	/req/offering
Requirement	/req/properties/properties
Requirement	/req/properties/metadata-information
Requirement	/req/properties/data-identification

Requirement 2

/req/properties/properties

A "Properties" object shall implement the properties shown in Table 5, with the value matching the type shown, and with the obligation shown.

Requirement 3

/req/properties/metadata-information

A "Properties" object shall implement the properties of a MetadataInformation object (Table 8).

Requirement 4

/req/properties/data-identification

A "Properties" object shall implement the properties of a DataIdentification object (Table 9).

The Properties block contains the EO properties and hypermedia links to related objects. It inherits all MetadataInformation and DataIdentification properties. The EO properties are in two main groups, i.e., "acquisitionInformation" and "productInformation" with multiplicity shown below. This allows having metadata:

Only consisting of "acquisitionInformation" and no productInformation, and
Consisting of multiple "acquisitionInformation" elements and 0 or 1 "productInformation" elements as occurs for synthesis products.

Figure : Properties Schema

Complete description of Properties is given in Table 5 and Table 9. For the inherited DataIdentification properties, we refer to Table 9. These properties are not repeated here.

Table : Properties object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.type	Type of the element. This property has the fixed value "Properties".	Domain: Properties Range: String Fixed value: "Properties"	Zero or one (optional)
links $.properties.links	Refers to related, actionable resources including download location, quicklook, original or alternative metadata representations etc... See Table 6.	Domain: Properties Range: Links. (See Table 6)	One (mandatory)
offerings $.properties.offerings	Service or online content offering for the resource targeted at OGC compliant clients. See OGC 14-055r2 [NR5].	Domain: Properties Range: Array of Offering.	Zero or more (optional)
status $.properties.status	Refers to product status. Fixed Values : - ARCHIVED - ACQUIRED - CANCELLED - FAILED - PLANNED - POTENTIAL - REJECTED - QUALITYDEGRADED	Domain: Properties Range: String	One (mandatory)
acquisitionInformation $.properties.acquisitionInformation	Contains product information as presented in Table 14.	Domain: Properties Range: Array of AcquisitionInformation (See Table 14)	One or more (mandatory)
productInformation $.properties.productInformation	Contains product information as presented in Table 20.	Domain: Properties Range: ProductInformation (See Table 20)	Zero or one (optional)

The example below contains also inherited DataIdentification properties defined in Table 9.

Example 3: Properties encoding example


{
  "properties": {
        "status": "ACQUIRED",
        "parentIdentifier": "SEA_GEC_1P",
        "doi": "",
        "title": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
        "identifier": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
 
        "date": "2016-07-02T18:13:41.34Z/2016-07-02T18:14:06.34Z",
        "updated": "2017-01-26T11:30:18Z",
 
        "links": { }
        "acquisitionInformation": [
            { }
        ],
        "productInformation": { }
    }
}

7.1.2 Links

Requirements Class
/req/links
Target type	Data instance
Dependency	/req/link
Requirement	/req/links/properties

Requirement 5

/req/links/properties

A "Links" object shall implement the properties shown in Table 6, with the value matching the type shown, and with the obligation shown.

The Links block contains references to related resources as hypermedia links. They include references to quicklooks, data download links or alternative representations of the metadata. For the GeoJSON encoding of the Links object, we use the property names adopted by section 7.1.2 of the GeoJSON encoding for OWS Context OGC 14-055r2 [NR5]. An alternative[6] JSON model with the "rel" attribute modelled as property of the Link object would allow to have a single array with all Link instances, but would not be compliant with OGC 14-055r2 and was thus not withheld.

Although the Links object below allows implementers to refer to original metadata, implementations are encouraged to use the JSON properties defined in the current document to provide metadata for EO products encoded in JSON instead of, or in addition to relying solely on hypermedia links referencing the original (e.g. XML-based) metadata as explained below.

Figure : Links Schema

Complete description of Links is given in Table 6.

Table : Links object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.links.type	Type of the element. This property has the fixed value "Links".	String Fixed value: Links	Zero or one (optional)
alternates $.properties.links.alternates	Reference to a description of the resource in an alternative format. Is defined by [NR5] §7.1.2.	Range: array of link as defined in Table 7.	Zero or more (optional)
via $.properties.links.via	Reference to a description of the resource in its original format.	Range: array of link as defined in Table 7.	Zero or more (optional)
previews $.properties.links.previews	Reference to a quicklook or browse image representing the resource. Is defined by [NR5] §7.1.2.	Range: array of link as defined in Table 7.	Zero or more (optional)
data $.properties.links.data	Reference to the location of the data resource. Is defined by [NR5] §7.1.2.	Range: array of link as defined in Table 7.	Zero or more (optional)
qualityReport $.properties.links.qualityReport	Reference to the location of a related quality report.	Range: array of link as defined in Table 7.	Zero or more (optional)
related $.properties.links.related	Reference to the location of a related resource, e.g. cloud mask, snow mask.	Range: array of link as defined in Table 7.	Zero or more (optional)
up $.properties.links.up	Reference to the metadata of higher-level resource (e.g., Collection, also identified by parentIdentifier).	Range: array of link as defined in Table 7.	Zero or more (optional)

Example 4: GeoJSON encoding example


{
    "type": "Feature",
    "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
    "geometry": { … },
    "properties": {
        "links": {
            "data": [
                {
                    "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
                    "type": "application/binary",
                    "title": "Download"
                }
            ],
            "previews": [
               {
                   "href": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
                   "type": "image/png",
                   "title": "Quicklook"
               }
            ],
            "alternates": [
                {
                    "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&amp;parentIdentifier=SEA_GEC_1P&amp;uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
                    "type": "application/atom+xml",
                    "title": "Atom format"
                }
            ]
 
        }
    }
}

7.1.3 Link

Requirement 6

/req/link

A "Link" object shall implement the properties shown in Table 7, with the value matching the type shown, and with the obligation shown.

The Link block contains the properties of a hypermedia link to a resource identified by its URI [NR5] and may be extended with media properties from [OR30].

Figure : Link Schema

For the GeoJSON encoding of each Link object, we use the encoding defined in section 7.1.10 of the GeoJSON encoding for OWS Context OGC 14-055r2 [NR5]. The equivalent JSON-LD encoding is consistent with section 6.1.2.2 of OGC 15-053 [OR6].

Complete description of Link is given in Table 7.

Table : Link object properties
JSON Property	Definition	Data type and values	Multiplicity and use
href $.properties.links.[].href	URI describing the related resource. Is defined by [NR5] §7.1.10.	Range: String	One (mandatory)
type $.properties.links.[].type	Hint about the type of the representation that is expected to be returned when the value of href is dereferenced.	Range: String (contains a media type).	Zero or one (optional)
title $.properties.links.[].title	Human readable information about the link. Is defined by [NR5] §7.1.10.	Range: String	Zero or one (optional)
length $.properties.links.[].length	Hint about the content length (in bytes) of the representation that is expected to be returned when the value of href is dereferenced. Is defined by [NR5] §7.1.10.	Range: Integer	Zero or one (optional)
category [7] $.properties.links.[].category	Media category [OR30] of the related resource which corresponds to a preview or mask: - THUMBNAIL - QUICKLOOK - ALBUM - SNOW - CLOUD - QUALITY Only applicable for media resources $.properties.links.previews[] or $.properties.links.related[]	Range: String	Zero or one (optional)
expression⁷ $.properties.links.[].expression	Determines if the related resource is a sample or the full version of the product. See [OR30]. Use "full" for "product/ProductInformation/". Use "sample" for "browse/BrowseInformation/" or "mask/MaskInformation/". Only applicable for media resources $.properties.links.previews[] or $.properties.links.related[]	Range: String	Zero or one (optional)
conformsTo⁷ $.properties.links.[].conformsTo	Indicates if resource is geo-referenced, (in which case should point to a code space for the CRS), when not supplied it is assumed that the resource is provided in "raw" satellite frame of reference. E.g.http://www.opengis.net.def/crs/EPSG/0/4326.	Range: String (URI)	Zero or one (optional)

Example 5: JSON encoding example (Data – external access)


{
   "data": [
      {
         "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
         "type": "application/binary",
         "title": "Download",
         "expression": "full",
         "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
      }
   ]
}

The example below illustrates the use of a data link which provides access to a local directory in addition to an HTTP download link. Note the use of the "file" URI scheme as per RFC8089.

Example 6: JSON encoding example (Data – local access)


{
   "data": [
      {
         "href": "http://finder.eocloud.eu/download/a9bfbbab-c06f-587a-8c09-12fa76da2c32",
         "type": "application/x-binary",
         "title": "Download"
      },
      {
         "href": "file:///eodata/Sentinel-1/SAR/GRD/2017/05/16/S1B_IW_GRDH_1SDV_20170516T052808_20170516T052832_005619_009D73_623B.SAFE",
         "type": "text/directory",
         "title": "Download"
      }
   ]
}

Example 7: JSON encoding example (Previews)


{
   "previews": [
      {
         "href": "http://gs.mdacorporation.com/browse/RADARSAT-2/2012/08/01/GATN_RS2_210731_1_1015_1.jpg",
         "type": "image/jpeg",
         "title": "Quicklook",
         "category": "QUICKLOOK",
         "expression": "sample",
         "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
      },
      {
         "href": "http://gs.mdacorporation.com/browse/RADARSAT-2/2012/08/01/GATN_RS2_210731_1_1015_1_thumbnail.jpg",
         "type": "image/jpeg",
         "title": "Quicklook",
         "category": "THUMBNAIL",
         "expression": "sample",
         "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
      }
   ]
}

Example 8: JSON encoding example (Masks)


{
   "related": [
      {
         "href": "http://daliis.spotimage.fr/wsTools/img/getImage.aspx?ST=S&amp;SN=37998313&amp;IT=CLD&amp;CP=N&amp;SD=T&amp;FT=BMP&amp;CM=75",
         "type": "image/jpeg",
         "title": "Cloud Mask",
         "category": "CLOUD",
         "expression": "sample",
         "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
      }
   ]
}

7.1.4 Offering

Requirements Class
/req/offering
Target type	Data instance
Dependency	/req/operation
Requirement	/req/offering/properties

Requirement 7

/req/offering/properties

An "Offering" object shall implement the properties defined in OGC 14-055r2 [NR5], with the value matching the type shown, and with the obligation shown.

The Offering block is fully defined in OGC 14-055r2 [NR5]. It describes a service or inline content offering for the EO product and is intended to be consumed by clients that support OGC standards. In the context of the current specification, an Offering can be used to describe:

View services allowing visualisation via OGC WMS or WMTS service interfaces,
Reference to download or ordering services according to specific OGC protocols (e.g., WCS), and
Reference to processing resources including WPS or hosted processing services.

Figure : Offering Schema

A number of examples for typical offerings (e.g., WMS, WCS and WMTS) are included below.

Example 9: JSON encoding example (WMS)


    {
         "code":"http://www.opengis.net/spec/owc-geojson/1.0/req/wms",
         "operations": [
           {
              "code":"GetCapabilities",
              "method":"GET",
              "type":"application/xml",
              "href":"http://eumetview.eumetsat.int/geoserv/wms?REQUEST=GetCapabilities&version=1.3.0&service=WMS"
           },
           {
              "code":"GetMap",
              "method":"GET",
              "type":"image/jpeg",
              "href":"http://eumetview.eumetsat.int/geoserv/wms?SERVICE=WMS&REQUEST=GetMap&TRANSPARENT=TRUE&EXCEPTIONS=INIMAGE&VERSION=1.3.0&LAYERS=meteosat%3Amsg_ir108%2Coverlay%3Ane_10m_coastline%2Coverlay%3Ane_10m_admin_0_boundary_lines_land&STYLES=raster%2C%2C&SRS=EPSG%3A4326&WIDTH=1161&HEIGHT=693&BBOX=-107.41500082612,-180,107.41500082612,180&FORMAT=image%2Fjpeg&TIME=2017-02-21T12%3A00%3A00.000Z&"                                              
           },
         ]
      }

Example 10: JSON encoding example (WCS)


    {
         "code":"http://www.opengis.net/spec/owc-geojson/1.0/req/wcs",
         "operations": [
           {
              "code":"GetCapabilities",
              "method":"GET",
              "type":"application/xml",
              "href":"http://fedeo.esa.int/geoserver/wcs?REQUEST=GetCapabilities&version=2.0.1&service=WCS"
           },
           {
              "code":"GetCoverage",
              "method":"GET",
              "type":"application/x-binary",
              "href":"http://fedeo.esa.int/geoserver/wcs?service=wcs&amp;version=2.0.1&amp;request=getcoverage&amp;coverageid=ASA_IMM_1PNIPA20080308_183226_000001722066_00371_31487_2902"                          
           }
         ]
      }

Example 11: JSON encoding example (WMTS)


{
   "code": "http://www.opengis.net/spec/owc-geojson/1.0/req/wmts",
   "operations": [
      {
         "code": "GetCapabilities",
         "method": "GET",
         "type": "application/xml",
         "href": "http://www.opengis.uab.es/cgi-bin/ICCTiled/MiraMon.cgi?REQUEST=GetCapabilities&SERVICE=WMTS"
      },
      {
         "code": "ServiceMetadata",
         "method": "GET",
         "type": "application/xml",
         "href": "http://www.opengis.uab.es/SITiled/ICC/1.0.0/WMTSCapabilities.xml"
      },
      {
         "code": "GetTile",
         "method": "GET",
         "type": "image/jpeg",
         "href": "http://www.opengis.uab.es/cgi-bin/ICCTiled/MiraMon.cgi?REQUEST=GetTile&SERVICE=WMTS&version=1.0.0&format=image/jpeg&layer=Topo250k_Vers5_ICC&TileMatrixSet=Cat_topo250k_v5_EPSG23031&TileMatrix=200m&TileRow=1&TileCol=0"
      },
      {
         "code": "Tile",
         "method": "GET",
         "type": "image/jpeg",
         "href": "http://www.opengis.uab.es/SITiled/ICC/Topo250k_Vers5_ICC/default/Cat_topo250k_v5_EPSG23031/200m/1/0.jpg"
      }
   ]
}

In the example below, line breaks were added inside the string literals containing XML content for readability purposes only. In the actual JSON objects, such line breaks inside string literals are not allowed.

Example 12: JSON encoding example (WPS)


{
   "code": "http://www.opengis.net/spec/owc-geojson/1.0/req/wps",
   "operations": [
      {
         "code": "GetCapabilities",
         "method": "GET",
         "type": "application/xml",
         "href": "http://tep.esa.int/wps/processing?REQUEST=GetCapabilities&SERVICE=WPS",
            "result": {
           "type": "application/xml",
             "content": "<wps:Capabilities>…</wps:Capabilities>"
            }
      },
      {
         "code": "DescribeProcess",
         "method": "POST",
         "type": "application/xml",
         "href": "http://tep.esa.int/wps/processing",
            "request": {
           "type": "application/xml",
             "content": "
<wps:DescribeProcess
  xmlns:ows=\"http://www.opengis.net/ows/2.0\"
  xmlns:wps=\"http://www.opengis.net/wps/2.0\"
  xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
 
  service=\"WPS\"
  version=\"2.0.0\">
 
   <ows:Identifier>LandCoverMapping</ows:Identifier>
  
</wps:DescribeProcess>
"
            },
            "result": {
                "type": "application/xml",
                "content": "
<wps:ProcessOfferings
   xmlns:wps=\"http://www.opengis.net/wps/2.0\"
   xmlns:ows=\"http://www.opengis.net/ows/2.0\"
   xmlns:xlink=\"http://www.w3.org/1999/xlink\"
   xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
   xmlns:xs=\"http://www.w3.org/2001/XMLSchema\">
  
   <wps:ProcessOffering jobControlOptions=\"async-execute dismiss\" outputTransmission=\"value reference\">
      <wps:Process>      
         <ows:Title>Land Cover Mapping</ows:Title>
         <ows:Abstract>Land Cover Mapping is based on the Sentinel-2 processing workflow generated for the F-TEP platform.</ows:Abstract>
         <ows:Identifier>LandCoverMapping</ows:Identifier>
        
         <wps:Input>
           <ows:Title>Sentinel-2 Image</ows:Title>
           <ows:Abstract>URL of Sentinel-2 Level 1C image product in the format offered by AWS or IPT, with a size of up to multiple gigabytes.</ows:Abstract>
           <ows:Identifier>Image</ows:Identifier>
           <wps:LiteralData>
              <wps:Format mimeType=\"text/xml\" default=\"true\"/>
              <LiteralDataDomain default=\"true\">
                 <ows:AnyValue/>
                 <ows:DataType ows:reference=\"xs:string\">string</ows:DataType>
              </LiteralDataDomain>
           </wps:LiteralData>
         </wps:Input>
 
         <wps:Input>
           <ows:Title>Reference Data</ows:Title>
           <ows:Abstract>Representative training data set with land cover class attributes, in OGR vector format supported by GDAL, such as ESRI shapefile, in a flat zip structure containing .shp and the supporting files.</ows:Abstract>
           <ows:Identifier>ReferenceData</ows:Identifier>
           <wps:ComplexData>
              <wps:Format mimeType=\"application/zip\" encoding=\"base64\" default=\"true\"/>
           </wps:ComplexData>
         </wps:Input>
        
         <wps:Output>
           <ows:Title>GeoTIF Image</ows:Title>
           <ows:Abstract>Labeled GeoTIFF file, containing for each pixel one of the class codes specified in the training reference data.</ows:Abstract>
           <ows:Identifier>Image</ows:Identifier>
           <wps:ComplexData>
              <wps:Format mimeType=\"image/tiff\" encoding=\"base64\" default=\"true\"/>
           </wps:ComplexData>
         </wps:Output>
        
      </wps:Process>
   </wps:ProcessOffering>
  
</wps:ProcessOfferings>
"
             }
      },
      {
          "code": "Execute",
          "method": "POST",
          "type": "application/xml",
          "href": "http://tep.esa.int/wps/processing",
             "request": {
                 "type": "application/xml",
                 "content": "
<wps:Execute
   xmlns:wps=\"http://www.opengis.net/wps/2.0\"
   xmlns:ows=\"http://www.opengis.net/ows/2.0\"
   xmlns:xlink=\"http://www.w3.org/1999/xlink\"
   xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
  
   service=\"WPS\"
   version=\"2.0.0\"
   response=\"document\"
   mode=\"async\">
  
   <ows:Identifier>LandCoverMapping</ows:Identifier>
  
   <wps:Input id=\"Image\">
      <wps:Data>http://finder.eocloud.eu/download/d7748f2f-0663-55e6-a32d-2399f40c295a</wps:Data>
   </wps:Input>
   <wps:Input id=\"ReferenceData\">
      <wps:Data>VGhpcyBpcyBhIFppc … CBmaWxlLg==</wps:Data>
   </wps:Input>
  
   <wps:Output id=\"Image\"/>
  
</wps:Execute>"
            },
            "result": {
                 "type": "application/xml",
                "content": "
<wps:StatusInfo
    xmlns:wps=\"http://www.opengis.net/wps/2.0\"
    xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">
   
   <wps:JobID>9843939e-c947-4d75-b3f3-6820d2ad4cd1</wps:JobID>
   <wps:Status>Accepted</wps:Status>
   <wps:NextPoll>2017-05-15T09:30:47Z</wps:NextPoll>
   <wps:PercentCompleted>0</wps:PercentCompleted>
  
</wps:StatusInfo>
"
             }
       },
      {
         "code": "GetResult",
         "method": "GET",
         "type": "application/xml",
        "href": "http://tep.esa.int/wps/processing?REQUEST=GetResult&SERVICE=WPS&jobid=9843939e-c947-4d75-b3f3-6820d2ad4cd1",
            "result": {
                 "type": "application/xml",
                 "content": "
<wps:Result
   xmlns:wps=\"http://www.opengis.net/wps/2.0\"
   xmlns:xlink=\"http://www.w3.org/1999/xlink\"
   xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">
  
   <wps:JobID>9843939e-c947-4d75-b3f3-6820d2ad4cd1</wps:JobID>
   <wps:ExpirationDate>2017-09-15T24:00:00Z</wps:ExpirationDate>
   <wps:Output id=\"Image\">
      <wps:Reference xlink:href=\"http://result.data.server/wps/9843939e-c947-4d75-b3f3-6820d2ad4cd1/image.TIFF\"/>
   </wps:Output>
</wps:Result>
"
           }
      },
      {
         "code": "GetStatus",
         "method": "GET",
         "type": "application/xml",
         "href": "http://tep.esa.int/wps/processing?service=WPS&version=2.0.0&request=GetStatus&jobid=9843939e-c947-4d75-b3f3-6820d2ad4cd1",
            "result": {
                 "type": "application/xml",
                 "content": "
 
<wps:StatusInfo
    xmlns:wps=\"http://www.opengis.net/wps/2.0\"
    xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">
   
   <wps:JobID>9843939e-c947-4d75-b3f3-6820d2ad4cd1</wps:JobID>
   <wps:Status>Accepted</wps:Status>
   <wps:NextPoll>2017-05-15T09:40:47Z</wps:NextPoll>
   <wps:PercentCompleted>20</wps:PercentCompleted>
  
</wps:StatusInfo>
"
           }
      }   
   ]
}

7.1.5 Operation

Requirement 8

/req/operation

An "Operation" object shall implement the properties of "Operation" defined in OGC 14-055r2 [NR5], with the value matching the type shown, and with the obligation shown.

The Operation block is fully defined in OGC 14-055r2 [NR5]. It describes an operation of a service or inline content offering for the EO product and is intended to be consumed by OGC-compliant clients. The "code" property identifies the OGC operation name, e.g., GetCapabilities, GetMap, etc.

Figure : Operation Schema

For examples, we refer the examples of Offering given in section 7.1.4.

7.2 Requirements class: Metadata Information

Requirements Class
/req/metadata-information
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Requirement	/req/metadata-information/properties

Requirement 9

/req/metadata-information/properties

A "MetadataInformation" object shall implement the properties shown in Table 8, with the value matching the type shown, and with the obligation shown.

The MetadataInformation properties are inherited by the Properties block (Table 5).

Figure : MetadataInformation Schema

Complete description of the MetadataInformation properties is given in Table 8 .

Table : MetadataInformation properties
JSON Property	Definition	Data type and values	Multiplicity and use
updated $.properties.updated	Date of creation or last update of the EO Metadata Document. DateTime representation, as defined by RFC 3339, section 5.6. ¹⁰	Domain: Properties Range: DateTime	One (mandatory[8])
published $.properties.published	Date of first availability of the EO Metadata Document.	Domain: Properties Range: DateTime	Zero or one (optional)
creationDate $.properties.creationDate	Date of creation of the EO Metadata Document.	Domain: Properties Range: DateTime	Zero or one (optional)
lang $.properties.lang	Metadata language, not empty with an RFC-3066 code as defined in [NR5].	Domain: Properties Range: string	Zero or one (optional)

Example 13: MetadataInformation encoding example


{ 
      "updated": "2017-01-26T11:30:18Z",
      "lang": "en"
}

7.3 Requirements class: Data Identification

Requirements Class
/req/data-identification
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Requirement	/req/data-identification/properties

Requirement 10

/req/data-identification/properties

A "DataIdentification" object shall implement the properties shown in Table 9, with the value matching the type shown, and with the obligation shown.

The DataIdentification properties are inherited by the Properties block (Table 5).

Figure : DataIdentification Schema

Complete description of the DataIdentification properties is given in Table 9.

Table : Data Identification properties
JSON Property	Definition	Data type and values	Multiplicity and use
parentIdentifier $.properties.parentIdentifier	Collection identifier.	Domain: Properties Range: String	Zero or one (optional)
doi $.properties.doi	Digital Object Identifier identifying the product (see http://www.doi.org)	Domain: Properties Range: String	Zero or one (optional)
title $.properties.title	Human readable title given to the resource, use-case dependent. Typical examples: · productType + date + swathIdentifier + polarisationMode (e.g., SAR) · productType + date + tileId (e.g. Sentinel-2) · productType + date + orbitNumber · identifier	Domain: Properties Range: String	One (mandatory)
identifier $.properties.identifier	Identifier given to the resource, typically the dataset (producer) identifier.	Domain: Properties Range: String	One (mandatory)
date $.properties.date	Range[9] of dates relevant for the resource (RFC-3339). Formatted as <datetime> "/"<datetime> or "<datetime>/" or "/<datetime> or <datetime> or "/".	Domain: Properties Range: String or DateTime	One (mandatory)
created $.properties.created	Date of creation of the resource.	Domain: Properties Range: DateTime	Zero or one (optional)
available $.properties.available	Date range during which the resource will be available (RFC-3339). Formatted as <datetime> "/"<datetime> or "<datetime>/" or "/<datetime> or <datetime> or "/".	Domain: Properties Range: String or DateTime	Zero or one (optional)
additionalAttributes	Container for ad-hoc additional metadata attributes which are organisation or mission specific.	Domain Properties Range: Object (See Section 8.1).	Zero or one (optional)

The above date property is to contain the following values:

For synergetic products (derived from multiple acquisitions done at different times), the date property (start/stop) shall be an aggregation of the various acquisition start/stop times.; and
For simple products (derived from a single acquisition), or an acquisition only, the date property (start /stop) shall be the same as the acquisition begin and end dates found in the (unique) acquisitionInformation element.

Example 14: Data Identification encoding example


{
      "parentIdentifier": "SEA_GEC_1P",
      "doi": "",
      "title": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "identifier": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "date": "2016-07-02T18:13:41.34Z/2016-07-02T18:14:06.34Z"
}

7.4 Requirements class: Spatial Information

7.4.1 Horizontal Spatial Domain

The spatial information is encoded as a Geometry object as defined by GeoJSON. There are requirements for Position, Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon, Geometry Collection as described in the following subsections.

Requirements Class
/req/geometry
Target type	Data instance
Dependency	/req/point
Dependency	/req/multi-point
Dependency	/req/linestring
Dependency	/req/multi-linestring
Dependency	/req/polygon
Dependency	/req/multi-polygon
Requirement	/req/geometry/properties

Requirement 11

/req/geometry/properties

Objects in a data instance that describe 0-D, 1-D, or 2-D geometries with positions in the WGS-84 system shall be encoded using the GeoJSON geometry encoding [NR2].

7.4.1.1 Geometry

The Geometry object contains a type property and coordinates property. The object can be any of the specialisations described below. The expected value for the coordinates property depends on the type of the geometry.

Figure : Geometry Schema (GeoJSON)

Complete description of the Geometry properties is given in Table 10. The possible specialisations are explained in subsequent subsections.

Table : Geometry object properties
GeoJSON Property	Definition	Data type and values	Multiplicity and use
type $.geometry.type	Type of the geometry representing the footprint. Can be one of the geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString or MultiPolygon.	Property [NR2], [OR33] Range: String	One (mandatory)
coordinates $. geometry.coordinates	Array with structure determined by the geometry type to be represented. Note that a position (array of numbers) is indicated by longitude, latitude (in that order).	Property [NR2], [OR33] Range: See section 3.1 of [NR2].	One (mandatory)

Note that consumers who wish to use the standard JSON-LD Processing Algorithms may need to use an alternative representation for the geometry objects as explained in section 8.2 and avoid the use of multi-dimensional arrays.

7.4.1.2 Point

Figure : Point Schema (GeoJSON)

Example 15: GeoJSON Point encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:GPOD-EO:MIP_NL__2P&uid=MIP_NL__2PRDPA20110126_012048_000060443099_00003_46569_3966.N1",
   "geometry": {
      "type": "Point",
      "coordinates":
         [
           -42.949837,
           -23.24841
         ],      
   },
   "properties": {}
}

7.4.1.3 MultiPoint

Figure : MultiPoint Schema (GeoJSON)

Example 16: GeoJSON MultiLineString encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:GPOD-EO:MIP_NL__2P&uid=MIP_NL__2PRDPA20110126_012048_000060443099_00003_46569_3966.N1",
   "geometry": {
      "type": "MultiPoint",
      "coordinates": [
         [
            -42.949837,
           -23.24841
         ],
         [
           -43.143765,
           -22.411628
         ],
         [
           -43.431962,
           -21.269959
         ],
         [
           -44.354582,
           -17.921265
         ],
         [
           -44.541317,
           -17.084588
         ],
        
         [
           -70.944332,
           -23.337905
         ]
      ]
   },
   "properties": {}
}

7.4.1.4 LineString

Figure : LineString Schema (GeoJSON)

Example 17: GeoJSON LineString encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_OFFL_SIR_GOP_1B_20161020T190953_20161020T191105_B002",
   "geometry": {
      "type": "LineString",
      "coordinates": [
         [
           10.029876,
           52.316888
         ],
         [
           9.358614,
           47.976653
         ]
      ]
   },
   "properties": {}
}

7.4.1.5 MultiLineString

Figure : MultiLineString Schema (GeoJSON)

Example 18: GeoJSON MultiLineString encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:GPOD-EO:RA2_MW__1P&uid=RA2_MW__1PRF-P20021231_223147_000062162012_00316_04378_8883.N1",
   "geometry": {
      "type": "MultiLineString",
      "coordinates": [
         [
           [
              -136.878,
              79.2342
           ],
           [
              -144.624,
              77.9061
           ],
           [
              -151.347,
              76.2577
           ],
           [
              -156.744,
              74.4313
           ],
           [
              -161.56,
              72.2376
           ],
           [
              -163.746,
              71.0004
           ],
           [
              -167.679,
              68.2576
           ],
           [
              -171.171,
              65.0765
           ],
           [
              -174.36,
              61.3181
           ],
           [
              -177.3,
              56.8761
           ],
           [
              -180,
              51.7103
           ]
         ],
         [
           [
              180,
              51.7103
           ],
           [
              176.173,
              42.1564
           ],
           [
              174.33,
              36.458
           ],
           [
              172.381,
              29.6249
           ],
           [
              170.728,
              23.2156
           ],
           [
              146.971,
              -58.7512
           ]
         ]
      ]
   },
   "properties": {}
}

7.4.1.6 Polygon

Figure : Polygon Schema (GeoJSON)

Note that according to [NR2], Polygon rings shall follow the right-hand rule for orientation (counter-clockwise external rings, clockwise internal rings).

Example 19: GeoJSON Polygon encoding example


{
    "type": "Feature",
 
    "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
    "geometry": { 
         "coordinates": [
           [
              [-2.682513, 63.261372],
              [-2.695740, 61.997604],
              [0.005087, 61.965195],
              [0.135472, 63.227173],
              [-2.682513, 63.261372]
           ]
         ],
         "type": "Polygon"
      },
 
    "properties": { }
}

7.4.1.7 MultiPolygon

Figure : MultiPolygon Schema (GeoJSON)

Example 20: GeoJSON MultiPolygon encoding example


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:GPOD-EO:TLM_MIRA1A&uid=SM_REPR_TLM_MIRA1A_20131113T223626_20131113T234029_620_001_1",
   "geometry": {
      "type": "MultiPolygon",
      "coordinates": [
         [
           [
              [
                 -79.972572,
                  -40.051556
              ],
              . . .
              [
                 -72.717911,
                 -41.413269
              ],
              [
                 -79.972572,
                 -40.051556
              ]
           ]
         ],
         [
           [
              [
                 180,
                 -78.232643
              ],
              [
                 165.665065,
                 -76.886392
              ],
              . . .
              [
                 180,
                 -84.111229
              ],
              [
                 180,
                 -78.232643
              ]
           ]
         ]
      ]
   },
   "properties": {}
}

7.4.2 Vertical Spatial Domain

Requirement 12

/req/vertical-spatial-domain

A "VerticalSpatialDomain" object shall implement the properties shown in Table 11 with the value matching the type shown, and with the obligation shown.

The VerticalSpatialDomain object contains the properties related to the spatial extent in the vertical dimension. Its properties are inherited by the AcquisitionParameters object.

Figure : VerticalSpatialDomain Schema

Complete description of the VerticalSpatialDomain properties is given in Table 11.

Table : Vertical Spatial Domain object properties
JSON Property	Definition	Data type and values	Multiplicity and use
lowestLocation $.properties.acquisitionInformation[*].acquisitionParameters.lowestLocation	Lower bound of measurements in vertical dimension (in meter or bar). Unit of measure defined by locationUnit property.	Domain: VerticalSpatialDomain Range: Double	Zero or one (optional)
highestLocation $.properties.acquisitionInformation[*].acquisitionParameters.highestLocation	Upper bound of measurements in vertical dimension (in meter or bar). Unit of measure defined by locationUnit property.	Domain: VerticalSpatialDomain Range: Double	Zero or one (optional)
locationUnit $.properties.acquisitionInformation[*].acquisitionParameters.locationUnit	Unit of measure used to express lowestLocation and highestLocation: meter (m) or bar (bar). Default is meter (m).	Domain: VerticalSpatialDomain Range: String ("m", "bar")	Zero or one (optional)

Example 21: VerticalSpatialDomain encoding example


{
         "lowestLocation": 40000,
         "highestLocation": 50000, 
         "locationUnit": "m"
}

7.4.3 Orbit Parameters

Requirement 13

/req/orbit-parameters

An "OrbitParameters" object shall implement the properties shown in Table 12. with the value matching the type shown, and with the obligation shown.

The OrbitParameters block contains the properties related to the orbit. Its properties are inherited by the AcquisitionParameters object.

Figure : OrbitParameters Schema

Complete description of the OrbitParameters properties is given in Table 12.

Table : OrbitParameters object properties
JSON Property	Definition	Data type and values	Multiplicity and use
orbitDirection $.properties.acquisitionInformation[*].acquisitionParameters.orbitDirection	Acquisition orbit direction at the start of the acquisition/product. Values: · ASCENDING · DESCENDING	Domain: AcquisitionParameters Range: String	Zero or one (optional)
lastOrbitDirection $.properties.acquisitionInformation[*].acquisitionParameters.lastOrbitDirection	Acquisition orbit direction at the end of the acquisition/product. Assumed to be identical to orbitDirection if not present. Values: · ASCENDING · DESCENDING	Domain: AcquisitionParameters Range: String	Zero or one (optional)
orbitDuration $..acquisitionInformation[*].acquisitionParameters.orbitDuration	Actual orbit duration in milliseconds	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
orbitNumber $..acquisitionInformation[*].acquisitionParameters.orbitNumber	Acquisition orbit number	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
lastOrbitNumber $..acquisitionInformation[*].acquisitionParameters.lastOrbitNumber	Acquisition last orbit number	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
ascendingNodeDate $..acquisitionInformation[*].acquisitionParameters.ascendingNodeDate	UTC date and time at ascending node of orbit	Domain: AcquisitionParameters Range: DateTime¹⁰	Zero or one (optional)
ascendingNodeLongitude $..acquisitionInformation[*].acquisitionParameters.ascendingNodeLongitude	Longitude at ascending node of orbit. Should be expressed in degrees.	Domain: AcquisitionParameters Range: Double	Zero or one (optional)

Example 22: OrbitParameters encoding example


{
         "orbitNumber": 20187,
         "lastOrbitNumber": 20187,  
         "orbitDirection": "DESCENDING",
         "ascendingNodeDate": "2014-01-28T14:01:25Z",
         "ascendingNodeLongitude": 74.784284
}

7.5 Requirements class: Temporal Information

Requirements Class
/req/temporal-information
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Requirement	/req/temporal-information/properties

Requirement 14

/req/temporal-information/properties

A "TemporalInformation" object shall implement the properties shown in Table 13, with the value matching the type shown, and with the obligation shown.

The TemporalInformation object contains the properties related to the start and end time of the acquisition of the data. Its properties are inherited by the AcquisitionParameters object.

Figure : TemporalInformation Schema

Complete description of the TemporalInformation properties is given in Table 13.

Table : TemporalInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
beginningDateTime $..acquisitionInformation[*].acquisitionParameters.beginningDateTime	Acquisition start date time DateTime representation, as defined by RFC 3339, section 5.6[10]	Domain: AcquisitionParameters Range: DateTime	One (mandatory)
endingDateTime $..acquisitionInformation[*].acquisitionParameters.endingDateTime	Acquisition end date time DateTime representation, as defined by RFC 3339, section 5.6¹⁰	Domain: AcquisitionParameters Range: DateTime	One (mandatory)

Example 23: TemporalInformation encoding example


{
      "beginningDateTime": "1978-09-27T01:04:30Z",
      "endingDateTime": "1978-09-27T01:04:45Z"
}

7.6 Requirements class: Acquisition Information

Requirements Class
/req/acquisition-information
Target type	Data instance
Dependency	/req/platform
Dependency	/req/instrument
Dependency	/req/instrument-parameters
Dependency	/req/acquisition-parameters
Requirement	/req/acquisition-information/properties

Requirement 15

/req/acquisition-information/properties

An "AcquisitionInformation" object shall implement the properties shown in Table 14, with the value matching the type shown, and with the obligation shown.

The AcquisitionInformation block can appear multiple times and contains information about the platform (i.e., satellite), the sensor and the acquisition parameters.

Figure : AcquisitionInformation Schema

Complete description of the AcquisitionInformation properties is given in Table 14.

Table : AcquisitionInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
platform $..acquisitionInformation[*].platform	The Platform used for the acquisition. If more than one platform is used for creating the product, then the AcquisitionInformation object occurs more than once.	Domain: AcquisitionInformation Range: Platform See Table 15	Zero or one (optional)
instrument $..acquisitionInformation[*].instrument	The Instrument/Sensor used for the acquisition. If more than one instrument is used for creating the product, then the AcquisitionInformation object occurs more than once.	Domain: AcquisitionInformation Range: Instrument See Table 16	Zero or one (optional)
acquisitionParameters $..acquisitionInformation[*].acquisitionParameters	The acquisition parameters (i.e., pointing angles, etc.)	Domain: AcquisitionInformation Range: AcquisitionParameters See Table 18.	Zero or one (optional)

Example 24: AcquisitionInformation encoding example


{
    "acquisitionInformation": [
        {
            "platform": {
                "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
                "platformShortName": "Seasat",
                "platformSerialIdentifier": "1"
            },
            "instrument": {
                "id":  "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
                "sensorType": "RADAR",
                "instrumentShortName": "SAR"            
            },
            "acquisitionParameters": {
                "operationalMode": "IM",
                "polarisationMode": "S",
                "polarisationChannels": "HH"
                "beginningDateTime": "1978-09-27T01:04:30Z",
                "endingDateTime": "1978-09-27T01:04:45Z",
                "acquisitionType": "NOMINAL",
                "acquisitionSubType": "DEFAULT",
                "orbitNumber": "1316",
                "orbitDirection": "DESCENDING",
                "antennaLookDirection": "RIGHT",
                "acquisitionAngles": {
                    "minimumIncidenceAngle": 19.6,
                    "maximumIncidenceAngle": 9.6,
                    "incidenceAngleVariation": 9.6
                }
            }
        }
    ]
}

7.6.1 Platform

Requirement 16

/req/platform

A "Platform" object shall implement the properties shown in Table 15, with the value matching the type shown, and with the obligation shown.

The Platform block contains the properties of the platform that was used to perform the observation.

Figure : Platform Schema

Complete description of the Platform properties is given in Table 15.

Table : Platform object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $..acquisitionInformation[*].platform.type	Type of the object. This property has the fixed value "Platform."	Range: String Fixed value: "Platform"	Zero or one (optional)
id $..acquisitionInformation[*].platform.id	URI of platform. E.g., http://gcmdservices.gsfc.nasa.gov/kms/concept/a1498dff-002d-4d67-9091-16822c608221 for ENVISAT	Range: String (URI)	Zero or one (Optional)
platformShortName $..acquisitionInformation[*].platform.platformShortName	Platform short name (e.g., "Seasat" or "ENVISAT")	Domain: Platform Range: String	One (mandatory)
platformSerialIdentifier $..acquisitionInformation[*].platform.platformSerialIdentifier	Platform serial identifier (e.g., for Seasat : 1).	Domain: Platform Range: String	Zero or one (Optional)
orbitType $..acquisitionInformation[*].platform.orbitType	High level characterisation of main mission types taken from a codelist	Domain: Platform Range: String Values: GEO, LEO	Zero or one (Optional)

Example 25: Platform encoding example


{
            "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
            "platformShortName": "Seasat",
            "platformSerialIdentifier": "1",
            "orbitType": "LEO"
}

7.6.2 Instrument

Requirement 17

/req/instrument

An "Instrument" object shall implement the properties shown in Table 16, with the value matching the type shown, and with the obligation shown.

The Instrument block contains the properties of the instrument that was used to perform the observation.

Figure : Instrument Schema

A complete description of the Instrument properties is given in Table 16.

Table : Instrument object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $..acquisitionInformation[*].instrument.type	Type of the object. This property has the fixed value "Instrument."	String Fixed value: "Instrument"	Zero or one (optional)
id $..acquisitionInformation[*].instrument.id	URI of instrument. E.g., http://gcmdservices.gsfc.nasa.gov/kms/concept/912c3308-23bc-4e12-b7fb-9d82e9fc5fe9 for ENVISAT ASAR	Domain: Instrument Range: String (URI)	Zero or one (optional)
sensorType[11] $..acquisitionInformation[*].instrument.sensorType	Sensor type based on codelist Values: - OPTICAL - RADAR - ALTIMETRIC - ATMOSPHERIC - LIMB	Domain: Instrument Range: String	Zero or one (optional)
instrumentShortName $..acquisitionInformation[*].instrument.instrumentShortName	Instrument (Sensor) name	Domain: Instrument Range: String	One (mandatory)
description $..acquisitionInformation[*].instrument.description	Instrument description	Domain: Instrument Range: String	Zero or one (optional)

Example 26: Instrument encoding example


{               "id":  "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
                "sensorType": "RADAR",
                "instrumentShortName": "SAR"
}

7.6.3 Wavelength Information

Requirement 18

/req/wavelength-information

A "WavelenghtInformation" object shall implement the properties shown in Table 17, with the value matching the type shown, and with the obligation shown.

The WavelengthInformation object contains the properties of the instrument related to the wavelengths used for the observation.

Figure : WavelengthInformation Schema

Complete description of the WavelengthInformation properties is given in Table 17.

Table : WavelengthInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $..acquisitionInformation[].instrument.wavelengths[].type	Type of the object. This property has the fixed value "WavelengthInformation".	Domain: WavelengthInformation Range: String Fixed value: "WavelengthInformation"	Zero or one (optional)
discreteWavelengths $..wavelengths[*].discreteWavelengths	List of discrete wavelengths observed in the product. Unit of measure is SI base unit (m) without prefix.	Domain: WavelengthInformation Range: Array of Double	Zero or more (optional)
startWavelength $..wavelengths[*].startWavelength	Start of the observed wavelength range. Unit of measure is SI base unit (m) without prefix. Examples: · 1E-03 (i.e.1 mm - start of microwave range). · 700E-09 (i.e 700nm - start of infrared range).	Domain: WavelengthInformation Range: Double	Zero or one (optional)
endWavelength $..wavelengths[*].endWavelength	End of the observed wavelength range Unit of measure is SI base unit (m) without prefix. Examples: · 0.3 (i.e.30 cm - end of microwave range). · 1E-03 (i.e 1mm - end of infrared range).	Domain: WavelengthInformation Range: Double	Zero or one (optional)
spectralRange $..wavelengths[*].spectralRange	The observed Spectral Range: Values: - INFRARED - NIR (for Near Infrared) - SWIR (for Short Wavelength Infrared) - MWIR (for Mid Wavelength Infrared) - LWIR (for Long Wavelength Infrared) - FIR (for Far Infrared) - UV - VISIBLE - MICROWAVE - OTHER	Domain: WavelengthInformation Range: String	Zero or one (optional)
wavelengthResolution $..wavelengths[*].wavelengthResolution	Spacing between consecutive wavelengths Unit of measure is SI base unit (m) without prefix.	Domain: WavelengthInformation Range: Double	Zero or one (optional)

Example 27: WavelengthInformation encoding oexample


{              
                "spectralRange": "INFRARED",
                "startWavelength": 700E-09,
                "endWavelength": 1E-03
}

7.6.4 Acquisition Parameters

Requirements Class
/req/acquisition-parameters
Target type	Data instance
Dependency	/req/vertical-spatial-domain
Dependency	/req/orbit-parameters
Dependency	/req/temporal-information
Dependency	/req/acquisition-angles
Dependency	/req/wavelength-information
Requirement	/req/acquisition-parameters/properties
Requirement	/req/acquisition-parameters/vertical-spatial-domain
Requirement	/req/acquisition-parameters/orbit-parameters
Requirement	/req/acquisition-parameters/temporal-information

Requirement 19

/req/acquisition-parameters/properties

An "AcquisitionParameters" object shall implement the properties shown in Table 18, with the value matching the type shown, and with the obligation shown.

Requirement 20

/req/acquisition-parameters/vertical-spatial-domain

An "AcquisitionParameters" object shall implement the properties of a VerticalSpatialDomain object (Table 11).

Requirement 21

/req/acquisition-parameters/orbit-parameters

An "AcquisitionParameters" object shall implement the properties of an OrbitParameters object (Table 12).

Requirement 22

/req/acquisition-parameters/temporal-information

An "AcquisitionParameters" object shall implement the properties of a TemporalInformation object (Table 13).

The AcquisitionParameters block contains the properties related to the acquisition of the data.

Figure : AcquisitionParameters Schema

Figure : AcquisitionParameters Schema Cont’d

Complete description of the AcquisitionParameters properties is given in Table 18.

Table : AcquisitionParameters object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.acquisitionInformation[*].acquisitionParameters.type	Type of the object. This property has the fixed value "AcquisitionParameters."	String Fixed value: "AcquisitionParameters"	Zero or one (optional)
acquisitionType $..acquisitionParameters.acquisitionType	Used to distinguish at a high level the appropriateness of the acquisition for "general" use, whether the product is a nominal acquisition, special calibration product or other. Values: - NOMINAL - CALIBRATION - OTHER	Domain: AcquisitionParameters Range: String	One (mandatory)
acquisitionSubType $..acquisitionParameters.acquisitionSubType	The broad value defined by the acquisitionType may be further refined by the acquisitionSubType using values from a mission/ground segment specific type definition should refer to mission/ground segment specific codeSpace	Domain: AcquisitionParameters Range: String	Zero or one (optional)
startTimeFromAscendingNode $..acquisitionParameters.startTimeFromAscendingNode	Start time of acquisition in milliseconds from ascending node date	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
completionTimeFromAscendingNode $..acquisitionParameters.completionTimeFromAscendingNode	Stop time of acquisition in milliseconds from ascending node date	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
relativeOrbitNumber $..acquisitionParameters.relativeOrbitNumber	Orbit number since start of cycle.	Domain: AcquisitionParameters Range: Integer	Zero or one (optional)
wrsLongitudeGrid $..acquisitionParameters.wrsLongitudeGrid	Neutral wrsLongitudeGrid equivalent to track in track/frame, K in K/J, etc.	Domain: AcquisitionParameters Range: String	Zero or one (optional)
wrsLatitudeGrid $..acquisitionParameters.wrsLatitudeGrid	Neutral wrsLatitudeGrid equivalent to frame in track/frame, J in K/J, etc.	Domain: AcquisitionParameters Range: String	Zero or one (optional)
tileId $..acquisitionParameters.tileId	While track/frame can be used to represent the first part of an MGRS coordinate (i.e., grid zone), the tileId identifies e.g. the second part of an MGRS coordinate (square identification), e.g. in case of Sentinel. Used when the world reference system coordinates can not be expressed in X/Y (Track/Frame) terms, such has for UTM tiles. (used for Sentinel-2 L1C granules)	Domain: AcquisitionParameters Range: String	Zero or one (optional)
groundTrackUncertainty $..acquisitionParameters.groundTrackUncertainty	Measure of the uncertainty of the ground track. Sometimes known as deadband e.g., 1000m (1Km) deadband. Unit of measure is SI base unit (m) without prefix.	Domain: AcquisitionParameters Range: Double	Zero or one (optional)
cycleNumber $..acquisitionParameters.cycleNumber	Number of Cycles	Domain: AcquisitionParameters Range: Integer	Zero or one (optional) Only applicable to altimetric products.
antennaLookDirection $..acquisitionParameters.antennaLookDirection	Look direction of antenna taken from codelist Values: - LEFT - RIGHT	Domain: AcquisitionParameters Range: String	Zero or one (optional) Only applicable to radar products.
acquisitionStation $..acquisitionParameters.acquisitionStation	Acquisition / receiving station code. Possible values are mission specific and should be retrieved using codespace.	Domain: AcquisitionParameters Range: String	Zero or more (optional) comma-separated names.
acquisitionAngles $..acquisitionParameters.acquisitionAngles	Acquisition angles	Domain: AcquisitionParameters Range: AcquisitionAngles	See Table 19
operationalMode $..acquisitionParameters.operationalMode	Sensor mode. Possible values are mission specific.	Domain: AcquisitionParameters Range: String	Zero or one (optional)
swathIdentifier $..acquisitionParameters.swathIdentifier	Swath identifier (e.g. Envisat ASAR has 7 distinct swaths (I1,I2,I3...I7) that correspond to precise incidence angles for the sensor).	Domain: AcquisitionParameters Range: String	Zero or one (optional)
polarisationMode $..acquisitionParameters.polarisationMode	Polarisation mode taken from codelist: S (for single), D (for dual), T (for twin), Q (for quad), UNDEFINED	Domain: AcquisitionParameters Range: String (S, D, T, Q, UNDEFINED)	Zero or one (optional)
polarisationChannels $..acquisitionParameters.polarisationChannels	Polarisation channel transmit/receive configuration: horizontal, vertical. Values: - HH - HV - VH - VV - HH, VV - HH, VH - HH, HV - VH, VV - VH, HV - VV, HV - VV, VH - HV, VH - HH, HV, VH, VV - UNDEFINED	Domain: AcquisitionParameters Range: String	Zero or more (optional).
resolution $..acquisitionParameters.resolution	Sensor resolution. Unit of measure is SI base unit (m) without prefix.	Domain: AcquisitionParameters Range: Double	Zero or one (optional)
verticalResolution $..acquisitionParameters.verticalResolution	lmb: Vertical spacing of data (if regular) atm: Full width at half maximum of the rows of the vertical averaging kernel matrix Unit of measure is SI base unit (m) without prefix.	Domain: AcquisitionParameters Range: Double	Zero or one (optional) Only applicable to atmospheric and Limb looking products.
wavelengths $..acquisitionParameters.wavelengths	List of discrete wavelengths observed in the product.	Domain: AcquisitionParameters Range: WavelengthInformation (See Table 17)	Zero or more (optional)
measurementType $..acquisitionParameters.measurementType	Measurement type taken from codelist: Values: - ABSORPTION - EMISSION	Domain: AcquisitionParameters Range: String	Zero or one (optional) Only applicable to limb looking products.
dopplerFrequency $..acquisitionParameters.dopplerFrequency	Doppler Frequency of acquisition	Domain: AcquisitionParameters Range: Double	Zero or one (optional).
samplingRates $..acquisition Parameters.samplingRates	Rate at which samples are provided in product. Some products may contain more than one sampling rate, e.g. 1kHz and 20kHz. Cardinality is therefore zero or more. Unit of measure (Hz) is SI derived unit[12] without prefix.	Domain: AcquisitionParameters Range: Array of Double	Zero or more (optional). Only applicable to altimetric products.

Example 28: Radar AcquisitionParameters encoding example


{
        "beginningDateTime": "1978-09-27T01:04:30Z",
        "endingDateTime": "1978-09-27T01:04:45Z",
        "acquisitionType": "NOMINAL",
        "acquisitionSubType": "DEFAULT",
        "orbitNumber": 1316,
        "orbitDirection": "DESCENDING",
        "antennaLookDirection": "RIGHT",
        "acquisitionAngles": {
            "minimumIncidenceAngle": 19.6,
            "maximumIncidenceAngle": 9.6,
            "incidenceAngleVariation": 9.6
        },
 
        "operationalMode": "IM",
        "polarisationMode": "S",
        "polarisationChannels": "HH",
        "wavelengths": {
             "spectralRange": "OTHER"
        }
 
}

Example 29: Optical AcquisitionParameters encoding example


{
        …
        "operationalMode": "IM",
        "wavelengths": {
              "spectralRange": "VISIBLE"
        }
}

Example 30: Altimeter AcquisitionParameters encoding example


{
        …
        "operationalMode": "LRM",
        "resolution": 0.7,
        "samplingRates": [1000, 20000]
}

7.6.5 Acquisition Angles

Requirement 23

/req/acquisition-angles

An "AcquisitionAngles" object shall implement the properties shown in Table 19, with the value matching the type shown, and with the obligation shown.

The AcquisitionAngles block contains the properties related to the acquisition angles.

Figure : AcquisitionAngles Schema

Complete description of the AcquisitionAngles block is given in Table 19.

Table : AcquisitionAngles object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.acquisitionInformation[*].acquisitionParameters.acquisitionAngles.type	Type of the object. This property has the fixed value "AcquisitionAngles".	Range: String Fixed value: "AcquisitionAngles"	Zero or one (optional)
illuminationAzimuthAngle $..acquisitionAngles.illuminationAzimuthAngle	Mean illumination/solar azimuth angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
illuminationZenithAngle $..acquisitionAngles.illuminationZenithAngle	Mean illumination/solar zenith angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
illuminationElevationAngle $..acquisitionAngles.illuminationElevationAngle	Mean illumination/solar elevation angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
incidenceAngle $..acquisitionAngles.incidenceAngle	Acquisition global incidence angle given in degrees (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
minimumIncidenceAngle $..acquisitionAngles.minimumIncidenceAngle	Minimum incidence angle	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
maximumIncidenceAngle $..acquisitionAngles.maximumIncidenceAngle	Maximum incidence angle	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
incidenceAngleVariation $..acquisitionAngles.incidenceAngleVariation	Incidence angle variation	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
acrossTrackIncidenceAngle $..acquisitionAngles.acrossTrackIncidenceAngle	Acquisition across track incidence angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
alongTrackIncidenceAngle $..acquisitionAngles.alongTrackIncidenceAngle	Acquisition along track incidence angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
instrumentAzimuthAngle $..acquisitionAngles.instrumentAzimuthAngle	Mean instrument azimuth angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
instrumentZenithAngle $..acquisitionAngles.instrumentZenithAngle	Mean instrument zenith angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
instrumentElevationAngle $..acquisitionAngles.instrumentElevationAngle	Mean instrument elevation angle given in degrees. (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
pitch $..acquisitionAngles.pitch	Satellite pitch angle given in degrees (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
roll $..acquisitionAngles.roll	Satellite roll angle given in degrees (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)
yaw $..acquisitionAngles.yaw	Satellite yaw angle given in degrees (i.e., uom='deg')	Domain: AcquisitionAngles Range: Double	Zero or one (optional)

Example 31: AcquisitionAngles encoding example


{
    "acquisitionInformation": [
        {
            "acquisitionParameters": {
               
                "acquisitionAngles": {
                    "minimumIncidenceAngle": 19.6,
                    "maximumIncidenceAngle": 9.6,
                    "incidenceAngleVariation": 9.6
                }
            }
        }
    ]
}

7.7 Requirements class: Product Information

Requirements Class
/req/product-information
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Dependency	/req/coverage-description
Dependency	/req/processing-information
Dependency	/req/quality-information
Requirement	/req/product-information/properties
Requirement	/req/product-information/processing-information
Requirement	/req/product-information/coverage-description

Requirement 24

/req/product-information/properties

A "ProductInformation" object shall implement the properties shown in Table 20, with the value matching the type shown, and with the obligation shown.

Requirement 25

/req/product-information/processing-information

A "ProductInformation" object shall implement the properties of a ProcessingInformation object (Table 22).

Requirement 26

/req/product-information/coverage-description

A "ProductInformation" object shall implement the properties of a CoverageDescription object (Table 23).

The ProductInformation block contains the properties related to the product which is the result of the observation and acquisition of the data, including the Quality Information. It inherits all properties of the ProcessingInformation and CoverageDescription objects.

Figure : ProductInformation Schema

Complete description of the ProductInformation block is given in Table 20.

Table : ProductInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.productInformation.type	Type of the object. This property has the fixed value "ProductInformation."	Domain: ProductInformation Range: String Fixed value: "ProductInformation"	Zero or one (optional)
productType $.properties.productInformation.productType	Describes the product type in case that mixed types are available within a single collection, this is a ground segment specific definition	Domain: ProductInformation Range: String	Zero or one (optional)
size $.properties.productInformation.size	Product size (bytes) allowing the user to realise how long a download is likely to take	Domain: ProductInformation Range: Integer (Number of bytes)	Zero or one (optional)
statusSubType $.properties.productInformation.statusSubType	Refines the status of a product when the "status" is set to "ARCHIVED". Possible values: - "ON-LINE" - "OFF-LINE"	Domain: ProductInformation Range: String	Zero or one (optional)
statusDetail $.properties.productInformation.statusDetail	This field refers to the status value. It should be used to motivate the reason of a failure, cancelation, rejection or degraded quality.	Domain: ProductInformation Range: String	Zero or one (optional)
availabilityTime $.properties.productInformation.availabilityTime	The time when the result becomes available DateTime representation, as defined by RFC 3339, section 5.6¹⁰	Domain: ProductInformation Range: DateTime	One (mandatory)
timeliness $.properties.productInformation.timeliness	Timeliness of the product, such as "near real time", "rush". Possible values are mission specific and shall refer to mission/ground segment dedicated codeSpace. Example of values could be "NRT", "NOMINAL", "NTC" or "STC"	Domain: ProductInformation Range: String	Zero or one (optional)
productGroupId $.properties.productInformation.productGroupId	Holds the identifier of a particular group to which the product belongs to. Group members represent then "granules" or "portions" of end-user products that are eligible for specific aggregations (e.g., all Sentinel-2 granules having the same productGroupId can be assembled together to form a Sentinel-2 end-user product)	Domain: ProductInformation Range: String	Zero or one (optional)
productVersion $.properties.productInformation.productVersion	Product version	Domain: ProductInformation Range: String	Zero or one (Optional)
archivingCenter $.properties.productInformation.archivingCenter	Archiving center code. Possible values are mission specific.	Domain: ProductInformation Range: String	Zero or one (Optional)
archivingDate $.properties.productInformation.archivingDate	Archiving date time. DateTime representation, as defined by RFC 3339, section 5.6¹⁰	Domain: ProductInformation Range: DateTime	Zero or one (Optional)
referenceSystemIdentifier $.properties.productInformation.referenceSystemIdentifier	Indicates if product is geo-referenced, (in which case should point to a code space for the CRS), when not supplied it is assumed that the product is provided in "raw" satellite frame of reference E.g., http://www.opengis.net/def/crs/EPSG/0/4326	Domain: ProductInformation Range: String (URI)	Zero or one (Optional)
qualityInformation $.properties.productInformation.qualityInformation	Contains properties related to the quality of the product.	Domain: ProductInformation Range: QualityInformation	Zero or one (Optional) See Table 21

Example 32: ProductInformation encoding example


{
    "productType": "SEA_GEC_1P",
    "referenceSystemIdentifier": "http://www.opengis.net/def/crs/EPSG/0/4326",
    "size": 255211520,
    "productVersion": "1.0",
    "statusSubType": "ON-LINE",
    "availabilityTime": "1978-09-27T01:04:45Z",
    "timeliness": "NOMINAL",
    "archivingcenter": "ASF",
    "archivingDate": "1978-09-28T02:05:56Z",
    "qualityInformation": { … }
}

7.7.1 Quality Information

Requirement 27

/req/quality-information

A "QualityInformation" object shall implement the properties shown in Table 21, with the value matching the type shown, and with the obligation shown.

The QualityInformation block contains the properties related to the quality of the product.

Figure : QualityInformation Schema

Complete description of the QualityInformation block is given in Table 21.

Table : QualityInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
type $.properties.productInformation.qualityInformation.type	Type of the object. This property has the fixed value "QualityInformation."	Range: String Fixed value: "QualityInformation"	Zero or one (optional)
qualityStatus $..qualityInformation.qualityStatus	Indicator that specifies whether the product quality is degraded or not. This optional field shall be provided if the product has passed a quality check. Values: DEGRADED, NOMINAL	Domain: QualityInformation Range: String	Zero or one (optional)
qualityDegradation $..qualityInformation.qualityDegradation	Quality degradation percentage (i.e., uom=’%’)	Domain: QualityInformation Range: Double	Zero or one (optional)
qualityDegradationQuotationMode $..qualityInformation.qualityDegradationQuotationMode	Indicator to know how the quality degradation percentage has been calculated. Values: AUTOMATIC, MANUAL	Domain: QualityInformation Range: String	Zero or one (optional)
qualityDegradationTag $..qualityInformation.qualityDegradationTag	Contains further textual information concerning the quality degradation. It shall be provided if qualityStatus value is DEGRADED. Possible values are mission specific and should refer to mission/ground segment dedicated codeSpace. Example of values could be "RADIOMETRY" or "GEOLOCATION".	Domain: QualityInformation Range: String	Zero or one (optional)

Example 33: QualityInformation encoding example


{
         "qualityStatus": "DEGRADED",
         "qualityDegradationQuotationMode": "AUTOMATIC"
}

7.7.2 Processing Information

Requirement 28

/req/processing-information

A "ProcessingInformation" object shall implement the properties shown in Table 22, with the value matching the type shown, and with the obligation shown.

The ProcessingInformation object contains the properties related to the processing of the data.

Figure : ProcessingInformation Schema

Complete description of the ProcessingInformation properties is given in Table 22.

Table : ProcessingInformation object properties
JSON Property	Definition	Data type and values	Multiplicity and use
compositeType $.properties.productInformation.compositeType	Type of composite product expressed as timeperiod that the composite product covers using ISO 8601 duration format P[n]Y[n]M[n]D encoding[13], e.g., P10D for a 10 day composite.	Domain: ProcessingInformation Range: String	Zero or one (optional)
format $.properties.productInformation.format	Native product format.	Domain: ProcessingInformation Range: String	Zero or one (optional)
processingMethod[14] $.properties.productInformation.processingMethod	Method used to compute datalayer. (e.g., Kalman filtering, ROSE)	Domain: ProcessingInformation Range: String	Zero or one (optional)
processingMethodVersion $.properties.productInformation.processingMethodVersion	Method version (e.g., 1.0)	Domain: ProcessingInformation Range: String	Zero or one (optional)
processingCenter $.properties.productInformation.processingCenter	Processing center code. Possible values are mission specific.	Domain: ProcessingInformation Range: String	Zero or one (optional)
processingDate $.properties.productInformation.processingDate	Processing date time DateTime representation, as defined by RFC 3339, section 5.6¹⁰	Domain: ProcessingInformation Range: DateTime	Zero or one (optional)
processingLevel $.properties.productInformation.processingLevel	Processing level applied to the product	Domain: ProcessingInformation Range: String "1A", "1B", "1C", "2", "3"	Zero or one (optional)
processingMode $.properties.productInformation.processingMode	Processing mode taken from mission specific code list Examples of values are: · NRT · NOMINAL · BACKLOGGED · REPROCESSED · VALIDATE	Domain: ProcessingInformation Range: String	Zero or one (optional)
processorName $.properties.productInformation.processorName	Processor software name (e.g., FastROSE)	Domain: ProcessingInformation Range: String	Zero or one (optional)
processorVersion $.properties.productInformation.processorVersion	Processor software version (e.g., 1.0)	Domain: ProcessingInformation Range: String	Zero or one (optional)
productContentsType $.properties.productInformation.productContentsType	Classification of product according to ground type covered. Note cardinality allows for multiple instances of this property. Allowed Values: · COASTAL · CONTINENTAL · HYDROLOGY · ICE · OPEN_OCEAN · OTHER · REGIONAL	Domain: ProcessingInformation Range: Array of String	Zero or more (optional) Only applicable to altimetric products.

Example 34: ProcessingInformation encoding example


{
         "processingCenter": "PDS",
         "processingDate": "2016-02-01T04:58:31Z",
         "processingLevel": "2",
         "processorVersion": "3.1"
}

7.7.3 Coverage Description

Requirement 29

/req/coverage-description

A "CoverageDescription" object shall implement the properties shown in Table 23, with the value matching the type shown, and with the obligation shown.

The CoverageDescription object contains the properties related to the coverage. Its properties are inherited by the ProductInformation object.

Figure : CoverageDescription Schema

Complete description of the CoverageDescription properties is given in Table 23.

Table : CoverageDescription object properties
JSON Property	Definition	Data type and values	Multiplicity and use
cloudCover $.properties.productInformation.cloudCover	Cloud cover percentage (i.e., uom=’%’)	Range: Double	Zero or one (optional)
snowCover $.properties.productInformation.snowCover	Snow cover percentage (i.e., uom=’%’)	Range: Double	Zero or one (optional)

Example 35: CoverageDescription encoding example


{
    "cloudCover": 0,
    "snowCover": 0
 }

7.8 Requirements class: Collections of Earth Observations

Requirements Class
/req/earthobservation-collection
Target type	Data instance
Dependency	JSON [NR1]
Dependency	GeoJSON [NR2]
Dependency	/req/earthobservation
Requirement	/req/earthobservation-collection/properties

Requirement 30

/req/earthobservation-collection/properties

An Observation Collection (i.e., "FeatureCollection") object shall implement the properties shown in Table 21, with the value matching the type shown, and with the obligation shown.

The FeatureCollection object (fully defined in [NR2]) models a collection (i.e. set) of EarthObservations. Such collections (or sets) of metadata are typically used in responses from service interfaces compliant with OpenSearch extensions; W3C LDP; OASIS OData[15]; OASIS searchRetrieve[16] or in OGC Web Services (OWS) Context documents. The current section does not define the encoding of the protocol specific information such as information to facilitate traversal of results (paging) or other as these differ for each protocol. For example, W3C LDP proposes traversal links as part of the HTTP header, while the various OpenSearch extensions include similar information in the HTTP body (payload). It does also not impose additional properties which are required if it is embedded in an OGC Web Map Context (OWC) according to OGC 14-055r2 [NR5].

Figure : FeatureCollection Schema (GeoJSON)

Complete description of the FeatureCollection is given in Table 24.

Table : FeatureCollection object properties
GeoJSON Property	Definition	Data type and values	Multiplicity and use
type $.type	As defined by [NR2].	Range: String Fixed value: "FeatureCollection"	One (mandatory)
bbox $.bbox	Information on the coordinate range of the geometry objects which are contained. The value is an array of length 2*n where n is the number of dimensions represented in the contained geometries. Typically, south-west point and north-east point. The value defines a shape with edges that have constant longitude and latitude. As defined by [NR2].	Domain: FeatureCollection Range: Array of Double	Zero or one (optional)
features $.features	Collection of EarthObservation (Feature) objects as defined by [NR2]. It is possible for the Array to be empty.	Range: Array of Feature	Zero or more (optional)

Example 36: FeatureCollection encoding example (GeoJSON)


{
   "type": "FeatureCollection",
     
   "features": [
      {
         "type": "Feature",
         "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780810T062657_19780810T062712_000633_0147_1101_1957",
         …
      },
      {
         "type": "Feature",
         "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780810T062801_19780810T062816_000633_0147_1177_0594",
         …
        
      }
   ]
}

8 Extensibility

8.1 Additional properties

In the current EO Dataset Metadata GeoJSON(-LD) Encoding Standard, an "extension" is any property or object type not defined by the Earth Observation Dataset Metadata Vocabulary in the current document. Consuming implementations that encounter unfamiliar extensions shall not stop processing or signal an error and shall continue processing the items as if those properties were not present. Note that support for extensions can vary across implementations and no normative processing model for extensions is defined. Accordingly, implementations that rely too heavily on the use of extensions may experience reduced interoperability with other implementations.

For extensions, JSON-LD [NR3] is used as the primary mechanism for defining and disambiguating extensions. Implementations that wish to fully support extensions should use JSON-LD mechanisms.

It is important to note that the JSON-LD Processing Algorithms [OR13], as currently defined, will silently ignore any property not defined in a JSON-LD @context. Implementations that publish EO Dataset Metadata documents containing extension properties should provide a @context definition for all extensions.

Although JSON objects are extendable by default, it is good practice to group "additional attributes" or "vendor specific information" in the AdditionalAttributes object. See DataIdentification properties (Table 9) in section 7.3.

Example 37: AdditionalAttributes encoding example


{
   …
   "properties": {
      "parentIdentifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001",
      "doi": "",
      "title": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "identifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "date": "2016-12-06T00:13:17Z/2016-12-06T00:14:01Z",
      "updated": "2017-05-05T12:51:16Z",
 
      "additionalAttributes": {
          "productDescription": "PROBA-VEGETATION Level2A Top Of Atmosphere Segment at 1KM resolution",
          "northPoleIndicator": false,
          "southPoleIndicator": false,
          "iCPGeometric": "PROBAV_ICP_GEOMETRIC#CENTER_20160208_V01",
          "iCPGeometricValidity": "2016-02-08T00:00:00Z",
          "iCPGeometricVersion": "01",
          "iCPRadiometric": "PROBAV_ICP_GEOMETRIC#CENTER_20160208_V01",
          "iCPRadiometricValidity": "2016-02-08T00:00:00Z",
          "iCPRadiometricVersion": "01",
          "landPercentage": 3.413,
          "missingDataPercentage": 0.000,
          "cameraID": "CENTER",
          "isSampleImage": false,
          "mapProjectionReference": "GEOGRAPHIC_LAT_LON"
      }
   }
}

JSON-LD mechanisms can be used to define the extensions as shown in the following examples.

Example 38: AdditionalAttributes encoding example (GeoJSON)


{
   "@context": {
      "vgt": "https://pdfintegration.vgt.vito.be/",
      …
      "productDescription": "vgt:productDescription",
      "northPoleIndicator": "vgt:northPoleIndicator",
      "southPoleIndicator": "vgt:southPoleIndicator",
      "iCPGeometric":       "vgt:iCPGeometric",
      "iCPGeometricValidity": "vgt:iCPGeometricValidity"
      …
 
   },
 
   …
 
   "properties": {
      "parentIdentifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001",
      "doi": "",
      "title": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "identifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "date": "2016-12-06T00:13:17Z/2016-12-06T00:14:01Z",
      "updated": "2017-05-05T12:51:16Z",
 
      "additionalAttributes": {
          "productDescription": "PROBA-VEGETATION Level2A Top Of Atmosphere Segment at 1KM resolution",
          "northPoleIndicator": false,
          "southPoleIndicator": false,
          "iCPGeometric": "PROBAV_ICP_GEOMETRIC#CENTER_20160208_V01",
          "iCPGeometricValidity": "2016-02-08T00:00:00Z",
          …
      }
   }
}

Example 39: AdditionalAttributes encoding example (JSON-LD)


{
   "@context": {
      …
      "vgt": "https://pdfintegration.vgt.vito.be/",
      …
   },
 
   …
   "gj:properties": {
      "eop:parentIdentifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001",
      "eop:doi": "",
      "dct:title": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "dct:identifier": "urn:ogc:def:EOP:VITO:PROBAV_L2A_1KM_V001:PROBAV_CENTER_L2A_20161206_001317_1KM:V101",
      "dct:date": "2016-12-06T00:13:17Z/2016-12-06T00:14:01Z",
      "dct:modified": "2017-05-05T12:51:16Z",
 
      "eop:additionalAttributes": {
          "vgt:productDescription": "PROBA-VEGETATION Level2A Top Of Atmosphere Segment at 1KM resolution",
          "vgt:northPoleIndicator": false,
          "vgt:southPoleIndicator": false,
          "vgt:iCPGeometric": "PROBAV_ICP_GEOMETRIC#CENTER_20160208_V01",
          "vgt:iCPGeometricValidity": "2016-02-08T00:00:00Z",
          …
      }
   }
}

8.2 JSON-specific constructs

Please note that there are valid JSON constructs which cannot be used within a JSON-LD document. For instance, JSON-LD forbids "arrays of arrays" as used by the GeoJSON specification. While implementations are free to use such constructs as extensions within an EO Dataset Metadata document, consumers that use the standard JSON-LD Processing Algorithms will be required to either ignore such extensions or map those to alternative compatible constructs prior to applying the JSON-LD algorithms. Complex geometries can be converted to GeoSPARQL [OR7] "Well-Known Text" representations as illustrated in the non-normative example below.

Example 40: JSON-LD encoding example using GeoSPARQL


{
   "@context": {
      "gj": "https://purl.org/geojson/vocab#",
      "gsp": "http://www.opengis.net/ont/geosparql#",
      "eop": "http://www.opengis.net/ont/eo-geojson/1.0/"
   },
   "@type": [
      "gj:Feature",
      "gsp:Feature",
      "eop:EarthObservation"
   ],
   "@id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "gsp:hasGeometry": {
      "gsp:asWKT": "Polygon((-2.682513, 63.261372, -2.695740, 61.997604, 0.005087, 61.965195, 0.135472, 63.227173, -2.682513, 63.261372))",
      "@type": "gsp:Geometry"
   },
   "gj:properties": {}
}

9 Media Types for any data encoding(s)

When EO Dataset Metadata is delivered using HTTP, the following MIME media types shall be used.

Table : Media types
Media type	Description
application/geo+json	GeoJSON representation with implicit normative context or normative context linked via a http://www.w3.org/ns/json-ld#context HTTP Link Header. See examples in annexes D.1.*.2.
application/ld+json;profile=" http://www.w3.org/ns/json-ld#compacted"	GeoJSON-LD representation compacted according to the normative context and with all context information within the body of the document. See examples in annexes D.1.*.3.
application/ld+json	GeoJSON-LD representation with all context information within the body of the document. See examples in annexes D.1.*.4.

10 Future Work (Non-Normative)

Several future enhancements of this proposed document are possible. Obvious enhancements are:

Refactor and refine JSON Schema [OR18] in Annex E for documentation and structural validation by referring to external JSON schema for GeoJSON and OWS Context (OGC 14-055r2); and
Encoding for EO dataset series.

Annex A: Abstract Test Suite (Normative)

A.1 Introduction

Conformance is tested using a set of JSON Schema [OR18] definitions which formalize the requirements described above. Strictly, each object definition is a "JSON Schema," so a JSON schema document may include multiple, sometimes nested, "JSON Schemas," providing the definition of the objects. Using JSON References, JSON schema supports inclusion of schemas defined in a JSON schema document into new schemas defined in the same or another document, so standard JSON objects may be defined once and re-used in multiple contexts, and a set of related object definitions may be composed from multiple documents.

The dependencies of the EO-GeoJSON requirement classes (green) and requirements (orange) correspond to the dependencies of the JSON schema definitions as shown in the Figure below. Arrows indicate dependencies.

Figure : Conformance and requirements class dependencies

A.2 Conformance Class: /conf/core

Entire JSON objects defined by the current specification are either individual earthobervation objects or collections of earthobservation objects (i.e. an earthobservation-collection object).

Conformance Class	/conf/core
Requirements	/req/earthobservation /req/earthobservation-collection
Dependency	A JSON Schema Validator
Test	/conf/earthobservation
Test	/conf/earthobservation-collection

A.3 Conformance Class: /conf/earthobservation

Conformance Class	/conf/earthobservation
Requirements	/req/earthobservation
Dependency	A JSON Schema Validator
Test	/conf/earthobservation
Requirement	req/earthobservation/properties, [req/geometry], [req/properties].
Test purpose	Verify that the JSON instance document is a valid EarthObservation object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.4 Conformance Class: /conf/properties

Conformance Class	/conf/properties
Requirements	/req/properties
Dependency	A JSON Schema Validator
Test	/conf/properties
Requirement	req/properties/properties, req/properties/metadata-information, req/properties/data-identification, [req/offering], [req/acquisition-information], [req/product-information], [req/metadata-information], [req/data-identification], [req/links].
Test purpose	Verify that the JSON instance document is a valid Properties object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.5 Conformance Class: /conf/links

Conformance Class	/conf/links
Requirements	/req/links
Dependency	A JSON Schema Validator
Test	/conf/links
Requirement	req/links/properties, req/link
Test purpose	Verify that the JSON instance document is a valid Links object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.6 Conformance Class: /conf/offering

Conformance Class	/conf/offering
Requirements	/req/offering
Dependency	A JSON Schema Validator
Test	/conf/offering
Requirement	req/offering/properties, req/operation
Test purpose	Verify that the JSON instance document is a valid Offering object as defined in OGC 14-055r2 [NR5].
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.7 Conformance Class: /conf/metadata-information

Conformance Class	/conf/metadata-information
Requirements	/req/metadata-information
Dependency	A JSON Schema Validator
Test	/conf/metadata-information
Requirement	req/metadata-information/properties
Test purpose	Verify that the JSON instance document is a valid MetadataInformation object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.8 Conformance Class: /conf/data-identification

Conformance Class	/conf/data-identification
Requirements	/req/data-identification
Dependency	A JSON Schema Validator
Test	/conf/data-identification
Requirement	req/data-identification/properties
Test purpose	Verify that the JSON instance document is a valid DataIdentification object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.9 Conformance Class: /conf/geometry

Conformance Class	/conf/geometry
Requirements	/req/geometry
Dependency	A JSON Schema Validator
Test	/conf/geometry
Requirement	req/geometry/properties
Test purpose	Verify that any objects within the document with a "type" property that matches one of the types from GeoJSON conforms to the GeoJSON format [NR2].
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.10 Conformance Class: /conf/acquisition-information

Conformance Class	/conf/acquisition-information
Requirements	/req/acquisition-information
Dependency	A JSON Schema Validator
Test	/conf/acquisition-information
Requirement	req/acquisition-information/properties, req/platform, req/instrument, [req/instrument-parameters], [req/acquisition-parameters].
Test purpose	Verify that the JSON instance document is a valid AcquisitionInformation object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.11 Conformance Class: /conf/acquisition-parameters

Conformance Class	/conf/acquisition-parameters
Requirements	/req/acquisition-parameters
Dependency	A JSON Schema Validator
Test	/conf/acquisition-parameters
Requirement	req/acquisition-parameters/properties, req/acquisition-parameters/vertical-spatial-domain, req/acquisition-parameters/orbit-parameters, req/acquisition-parameters/temporal-information, req/wavelength-information, req/acquisition-angles, req/vertical-spatial-domain, req/orbit-parameters, req/temporal-information.
Test purpose	Verify that the JSON instance document is a valid AcquisitionParameters object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.12 Conformance Class: /conf/product-information

Conformance Class	/conf/product-information
Requirements	/req/product-information
Dependency	A JSON Schema Validator
Test	/conf/product-information
Requirement	req/product-information/properties, req/product-information/processing-information, req/product-information/coverage-description, req/quality-information, req/processing-information, req/coverage-description.
Test purpose	Verify that the JSON instance document is a valid ProductInformation object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

A.13 Conformance Class: /conf/earthobservation-collection

Conformance Class	/conf/earthobservation-collection
Requirements	/req/earthobservation-collection
Dependency	A JSON Schema Validator
Test	/conf/earthobservation-collection
Requirement	req/earthobservation-collection/properties, [req/earthobservation].
Test purpose	Verify that the JSON instance document is a valid EarthObservationColllection object.
Test method	Validate the JSON instance document using the appropriate object definition from the JSON Schema (Annex E:). Pass if no errors reported. Fail otherwise.
Test type	Capability

Annex B: Interpreting JSON as JSON-LD (Non-Normative)

The JSON-LD encoding proposed in this annex supports a seamless transition from GeoJSON based implementations to JSON-LD based implementations with a minimum number of edits. The GeoJSON encoding proposed can be interpreted as JSON-LD by JSON-LD-aware implementations through the use of the normative @context document provided in this annex.

B.1 Introduction

B.1.1 JSON-LD

The serialized GeoJSON form of an EO Dataset Metadata document shall be consistent with what would be produced by the standard JSON-LD 1.0 Processing Algorithms and API [OR13] Compaction Algorithm using, at least, the normative JSON-LD @context definition provided in "Annex B: normative JSON-LD @context definition." Implementations may augment the provided @context with additional @context definitions but shall not override or change the normative context. Implementations may also use additional properties and values not defined in the JSON-LD @context with the understanding that any such properties will likely be unsupported and ignored by consuming implementations that use the standard JSON-LD algorithms. See the Extensibility section for more information on handling extensions within EO Dataset Metadata documents.

JSON-LD uses the special @context property to define the processing context. The value of the @context property is defined by the JSON-LD specification. Implementations producing EO Dataset Metadata documents should include a @context property with a value that includes a reference to the normative JSON-LD @context definition using the URL "https://www.opengis.net/eo-geojson/1.0." Implementations may use the alternative URL "http:// www.opengis.net/eo-geojson/1.0" instead.

When a JSON-LD enabled EO Dataset Metadata implementation encounters a GeoJSON document identified using the "application/geo+json" MIME media type, and that document does not contain a @context property whose value includes a reference to the normative JSON-LD @context definition, the implementation shall assume that the normative @context definition still applies.

Alternatively, implementations can refer to the normative JSON-LD context document via an HTTP Link header as described in section 6.8 of the JSON-LD specification [NR3]. This allows the GeoJSON documents to be unambiguously machine readable as JSON-LD.

Example41: Referencing a JSON-LD context from a GeoJSON document


GET /document.json HTTP/1.1
Host: example.com
Accept: application/ld+json,application/geo+json,*/*;q=0.1
 
====================================
 
HTTP/1.1 200 OK
…
Content-Type: application/geo+json
Link: <https://www.opengis.net/eo-geojson/1.0>; rel="http://www.w3.org/ns/json-ld#context"; type="application/ld+json"
 
{
  . . .
}

B.1.2 Semantic Web and JSON-LD

The W3C Semantic Web Activity is defining a collection of technologies that enables a "Web of data" where information is easily shared and reused across applications. Some key pieces of this technology stack are the RDF (Resource Description Framework), RDFS (RDF Schema) data models [OR9, OR10] and JSON-LD [NR3]. The JSON-LD encoding proposed in the current document can be interpreted as the proposed encoding in RDF for EO Dataset Metadata. Each JSON(-LD) property proposed corresponds to an RDF predicate which is represented with a URI.

RDF is a data model built on edge-node "graphs." Each link in a graph consists of three things (with many aliases depending on the mapping from other types of data models):

Subject (start node, instance, entity, feature);
Predicate (verb, property, attribute, relationship, link); and
Object (value, end node, non-literal values can be used as a Subject).

Any of the three values in a single triple can be represented via a URI (with an optional fragment identifier). Subjects and objects are called nodes. Objects can also be represented as a literal value. Note that the same node may play the role of a Subject in some edges, and the role of the Object in others.

All proposed properties are defined (via a normative @context document) with an URI from existing, well-known, vocabularies where available, e.g. Dublin Core (dct:), GeoJSON-LD (gj:), Atom (atom:), OGC Web Context (owc:) etc. Only vocabulary items specific to EO (namespace eop) are defined in addition in the current specification (in Annex B.3).

In the proposed specification, the "id" JSON property (or "@id" JSON-LD property) corresponds to a URI representing a Subject or Object (e.g. of type eop:Platform or eop:Instrument).

B.2 JSON-LD @context definition

B.2.1 JSON-LD 1.1

The current annex provides the normative JSON-LD @context which is implied by the GeoJSON encoding as explained above. It is available at http://schemas.opengis.net/eo-geojson/1.0/eo-geojson.jsonld (See Annex E:).

JSON-LD 1.1 [OR32] aware clients can apply this JSON-LD @context to interpret the GeoJSON encoding as JSON-LD. The context relies on JSON-LD 1.1 specific features, in particular "scoped contexts" and "nested properties." The expressiveness of JSON-LD 1.0 @context is too limited to isolate the required context information to support compacting and expansion in a single external context document. It would require inserting inline contexts in the GeoJSON encoding.


{
   "@context": {
 
      "@version": 1.1,
 
      "@vocab": "http://www.opengis.net/ont/eo-geojson/1.0/",
      "xsd": "http://www.w3.org/2001/XMLSchema#",
      "dct": "http://purl.org/dc/terms/",
      "atom": "http://www.w3.org/2005/Atom/",
      "iana": "http://www.iana.org/assignments/relation/",
      "eop": "http://www.opengis.net/ont/eo-geojson/1.0/",
      "epsg": "http://www.opengis.net/def/crs/EPSG/0/",
     
      "owc": "http://www.opengis.net/ont/owc/1.0/",
      "gj": "https://purl.org/geojson/vocab#",
      "gsp": "http://www.opengis.net/ont/geosparql#",
      "ical": "http://www.w3.org/2002/12/cal/ical#",
      "media": "http://search.yahoo.com/mrss/",
      "title": "dct:title",
      "identifier": "dct:identifier",
      "format": "dct:format",
     
      "lang": {
         "@id": "dct:language",
         "@type": "@id",
         "@context": {
           "@base": "http://id.loc.gov/vocabulary/iso639-1/"
         }
      },
      "kind": {
	 "@id": "dct:type",
	 "@type": "@id"
      },
      "updated": "dct:modified",
      "published": "dct:issued",
     
      "creator": "dct:creator",
      "description": "dct:description",
      "date": "dct:date",
      "created": "dct:created",
      "available": "dct:available",
      "up": "iana:up",
      "via": "iana:via",
      "data": "iana:enclosure",
      "related": "iana:related",
      "profiles": "iana:profile",
      "links": "@nest",
      "Links": "owc:Links",
      "Offering": "owc:Offering",
      "offerings": {
	 "@id": "owc:offerings",
 	 "@context": {
    	    "@vocab": "http://www.opengis.net/ont/owc/1.0/",
	    "code" : {
		"@id" : "owc :code",
		"@type" : "@id"
	    }
  	 }
      },
      "Link": "atom:link",
      "previews": "iana:icon",
      "alternates": "iana:alternate",
      "qualityReport": "iana:describedby",
      "href": "@id",
      "mediaType": "atom:type",
      "productVersion": "eop:version",
      "beginningDateTime": "ical:dtstart",
      "endingDateTime": "ical:dtend",
      "expression": "media:expression",
      "category": {
         "@id": "media:category",
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "hasGeometry": "gsp:hasGeometry",
      "asWKT": "gsp:asWKT",
      "Feature": "gj:Feature",
      "FeatureCollection": "gj:FeatureCollection",
      "GeometryCollection": "gj:GeometryCollection",
      "LineString": "gj:LineString",
      "MultiLineString": "gj:MultiLineString",
      "MultiPoint": "gj:MultiPoint",
      "MultiPolygon": "gj:MultiPolygon",
      "Point": "gj:Point",
      "Polygon": "gj:Polygon",
      "bbox": {
         "@container": "@list",
         "@id": "gj:bbox"
      },
      "coordinates": "gj:coordinates",
      "features": {
         "@container": "@set",
         "@id": "gj:features"
      },
      "geometry": "gj:geometry",
      "id": "@id",
      "properties": "@nest",
      "additionalAttributes": "@nest",
 
      "type": "@type",
      "links": {
         "@id": "owc:links",
         "@context": {
            "@vocab": "http://www.iana.org/assignments/relation/",
           "type": "atom:type"
         }
      },
      "operations": {
         "@id": "owc:operations",
         "@context": {
           "href": "owc:href",
           "code": "owc:code",
           "type": "atom:type"
         }
      },
      "contents": {
	 "@id": "owc:contents",
	 "@context": {
  	    "type": "owc:type"
	 }
      },
      "conformsTo": {
         "@type": "@id",
         "@id": "dct:conformsTo"
      },
      "referenceSystemIdentifier": {
         "@type": "@id"
      },
      "acquisitionType": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/AcquisitionType/"
         }
      },
      "antennaLookDirection": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "discreteWavelengths": "eop:discreteWavelength",
      "highestLocation": "eop:maximumAltitude",  
      "locationUnit": {
         "@id": "eop:altitudeUnit",
         "@type": "@vocab",
         "@context": {
            "m":   "http://www.opengis.net/ont/eo-geojson/1.0/Unit/Meter",
            "bar": "http://www.opengis.net/ont/eo-geojson/1.0/Unit/Bar"            
         }
      },
      "lowestLocation": "eop:minimumAltitude",
      "measurementType": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "orbitDirection": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "orbitType": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "polarisationChannels": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/"
         }
      },
      "polarisationMode": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/"
         }
      },
      "samplingRates" : "eop:samplingRate",
      "sensorType": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      },
      "spectralRange": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/"
         }
      },
      "status": {
         "@type": "@id",
         "@context": {
           "@base": "http://www.opengis.net/ont/eo-geojson/1.0/"
         }
      }
   }
}

B.3 RDF Schema Vocabulary Definition

A non-normative definition of the EO Dataset GeoJSON vocabulary is provided here and/or at the namespace as a convenience for implementers wishing to use RDF mechanisms for processing EO Dataset GeoJSON(-LD). Note, however, that this document provides the normative definition of the vocabulary.

The vocabulary relies on the proposed OWC GeoJSON Vocabulary which is presented in section B.3.2.

B.3.1 EO GeoJSON Vocabulary

The information is best viewed using on-line tools such as Parrot[17], Lode[18] or WIDOCO[19].


@prefixdc: <http://purl.org/dc/elements/1.1/> .
@prefixdcterms: <http://purl.org/dc/terms/> .
@prefixeop: <http://www.opengis.net/ont/eo-geojson/1.0/> .
@prefixianarel: <http://www.iana.org/assignments/relation/> .
@prefixmedia: <http://search.yahoo.com/mrss/> .
@prefixowc: <http://www.opengis.net/ont/owc/1.0/> .
@prefixowl: <http://www.w3.org/2002/07/owl#> .
@prefixrdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefixrdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefixskos: <http://www.w3.org/2004/02/skos/core#> .
@prefixvann: <http://purl.org/vocab/vann/> .
@prefixvoid: <http://rdfs.org/ns/void#> .
@prefixxml: <http://www.w3.org/XML/1998/namespace> .
@prefixxsd: <http://www.w3.org/2001/XMLSchema#> .
 
media:categorya owl:ObjectProperty ;
    rdfs:label "category" ;
    dc:description """Media category of the related resource which corresponds to a preview or mask:
- THUMBNAIL
- QUICKLOOK
- ALBUM
- SNOW
- CLOUD
- QUALITY
Only applicable for media resources.""";
    dcterms:source "OGC 17-003, MediaRSS"^^xsd:string ;
    rdfs:isDefinedBy media: ;
    rdfs:seeAlso <http://www.rssboard.org/media-rss#media-category> .
 
media:expressiona owl:DatatypeProperty ;
    rdfs:label "expression" ;
    dc:description "Determines if the related resource is a sample or the full version of the product.  Use \"full\" for "product/ProductInformation/".  Use \"sample\" for \"browse/BrowseInformation/\" or \"mask/MaskInformation/\"." ;
    dcterms:source "OGC 17-003, MediaRSS"^^xsd:string ;
    rdfs:isDefinedBy media: ;
    rdfs:seeAlso <http://www.rssboard.org/media-rss#media-content> .
 
ianarel:describedbya owl:ObjectProperty ;
    rdfs:label "qualityReport" ;
    dc:description "Reference to the location of a related quality report as defined by OGC 14-055r2 §7.1.2." ;
    dcterms:source "OGC 17-003, OGC 14-055r2"^^xsd:string ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
ianarel:relateda owl:ObjectProperty ;
    rdfs:label "related" ;
    dc:description "Reference to the location of a related resource, e.g. cloud mask, snow mask." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
ianarel:upa owl:ObjectProperty ;
    rdfs:label "up" ;
    dc:description "Reference to the metadata of higher level resource (e.g.  Collection, also identified by parentIdentifier) resource." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
eop:ABSORPTIONa eop:MeasurementType ;
    dc:description "Measurement type constant." .
 
eop:ACQUIREDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:ALBUMa eop:CategoryType ;
    dc:description "Category constant." .
 
eop:ALTIMETRICa eop:SensorType ;
    dc:description "Sensor type constant." .
 
eop:ARCHIVEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:ASCENDINGa eop:OrbitDirectionType ;
    dc:description "Orbit direction constant." .
 
eop:ATMOSPHERICa eop:SensorType ;
    dc:description "Sensor type constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/AcquisitionType/CALIBRATION> a eop:AcquisitionType ;
    dc:description "Acquisition type constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/AcquisitionType/NOMINAL> a eop:AcquisitionType ;
    dc:description "Acquisition type constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/AcquisitionType/OTHER> a eop:AcquisitionType ;
    dc:description "Acquisition type constant." .
 
eop:CANCELLEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:CLOUDa eop:CategoryType ;
    dc:description "Category constant." .
 
eop:DESCENDINGa eop:OrbitDirectionType ;
    dc:description "Orbit direction constant." .
 
eop:EMISSIONa eop:MeasurementType ;
    dc:description "Measurement type constant." .
 
eop:EarthObservationa owl:Class ;
    rdfs:label "EarthObservation" ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "Feature",
    "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
    "bbox": [
        -2.69574,
        61.965195,
        0.135472,
        63.261372
    ],
    "geometry": {…},
    "properties": {…}
}
  """;
    rdfs:comment " Earth Observation as defined in OGC 10-157r4" ;
    rdfs:isDefinedBy eop: ;
    rdfs:subClassOf <http://purl.org/geojson/vocab#Feature> .
 
eop:FAILEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:GEOa eop:OrbitType ;
    dc:description "Orbit type constant." .
 
eop:LEFTa eop:AntennaLookDirectionType ;
    dc:description "Antenna look direction constant." .
 
eop:LEOa eop:OrbitType ;
    dc:description "Orbit type constant." .
 
eop:LIMBa eop:SensorType ;
    dc:description "Sensor type constant." .
 
eop:OPTICALa eop:SensorType ;
    dc:description "Sensor type constant." .
 
eop:PLANNEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:POTENTIALa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HH> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HH_HV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HH_HV_VH_VV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HH_VH> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HH_VV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/HV_VH> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/UNDEFINED> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VH> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VH_HV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VH_VV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VV_HV> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationChannels/VV_VH> a eop:PolarisationChannelsType ;
    dc:description "Polarisation channel constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/D> a eop:PolarisationModeType ;
    dc:description "Polarisation mode constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/Q> a eop:PolarisationModeType ;
    dc:description "Polarisation mode constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/S> a eop:PolarisationModeType ;
    dc:description "Polarisation mode constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/T> a eop:PolarisationModeType ;
    dc:description "Polarisation mode constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/PolarisationMode/UNDEFINED> a eop:PolarisationModeType ;
    dc:description "Polarisation mode constant." .
 
eop:QUALITYa eop:CategoryType ;
    dc:description "Category constant." .
 
eop:QUALITYDEGRADEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:QUICKLOOKa eop:CategoryType ;
    dc:description "Category constant." .
 
eop:RADARa eop:SensorType ;
    dc:description "Sensor type constant." .
 
eop:REJECTEDa eop:StatusType ;
    dc:description "Acquisition status constant." .
 
eop:RIGHTa eop:AntennaLookDirectionType ;
    dc:description "Antenna look direction constant." .
 
eop:SNOWa eop:CategoryType ;
    dc:description "Category constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/MICROWAVE> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/OTHER> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/UV> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Ultraviolet (UV)." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/VISIBLE> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant." .
 
eop:THUMBNAILa eop:CategoryType ;
    dc:description "Category constant." .
 
eop:acquisitionAnglesa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "acquisitionAngles" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition angles." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AcquisitionAngles .
 
eop:acquisitionInformationa owl:ObjectProperty ;
    rdfs:label "acquisitionInformation" ;
    dc:description "Contains acquisition information." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains acquisition information." ;
    rdfs:domain eop:Properties ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AcquisitionInformation .
 
eop:acquisitionParametersa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "acquisitionParameters" ;
    dc:description "The acquisition parameters (i.e. pointing angles, etc.)." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain eop:AcquisitionInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AcquisitionParameters .
 
eop:acquisitionStationa owl:DatatypeProperty ;
    rdfs:label "acquisitionStation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition / receiving station code. Possible values are mission specific and should be retrieved using codespace." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:acquisitionSubTypea owl:DatatypeProperty ;
    rdfs:label "acquisitionSubType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "The broad value defined by the acquisitionType is too restrictive, so mission specific type definition should refer to mission/ground segment dedicated codeSpace." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:acquisitionTypea owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "acquisitionType" ;
    dc:description """AcquisitionType can be one of:
 - NOMINAL
 - CALIBRATION
 - OTHER.""";
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AcquisitionType .
 
eop:acrossTrackIncidenceAnglea owl:DatatypeProperty ;
    rdfs:label "acrossTrackIncidenceAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition across track incidence angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:additionalAttributesa owl:ObjectProperty ;
    rdfs:label "additionalAttributes" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Container for ad-hoc additional metadata attributes which are organisation or mission specific." ;
    rdfs:domain eop:DataIdentification ;
    rdfs:isDefinedBy eop: .
 
eop:alongTrackIncidenceAnglea owl:DatatypeProperty ;
    rdfs:label "alongTrackIncidenceAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition along track incidence angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:altitudeUnita owl:ObjectProperty ;
    rdfs:label "locationUnit" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Unit of measure used to express lowestLocation and highestLocation: meter (m) or bar (bar). Default is meter (m)." ;
    rdfs:domain eop:VerticalSpatialDomain ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AltitudeUnitType .
 
eop:antennaLookDirectiona owl:ObjectProperty ;
    rdfs:label "antennaLookDirection" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Look direction of antenna taken from codelist
Values:
- LEFT
- RIGHT.""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:AntennaLookDirectionType .
 
eop:archivingCentera owl:DatatypeProperty ;
    rdfs:label "archivingCenter" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Archiving center code. Possible values are mission specific." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:archivingDatea owl:DatatypeProperty ;
    rdfs:label "archivingDate" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Archiving date time." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:dateTime .
 
eop:ascendingNodeDatea owl:DatatypeProperty ;
    rdfs:label "ascendingNodeDate" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "UTC date and time at ascending node of orbit." ;
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:dateTime .
 
eop:ascendingNodeLongitudea owl:DatatypeProperty ;
    rdfs:label "ascendingNodeLongitude" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Longitude at ascending node of orbit. Should be expressed in degrees.
""";
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:availabilityTimea owl:DatatypeProperty ;
    rdfs:label "availabilityTime" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """The time when the result becomes available
 dateTime in ISO 8601 format (CCYY-MM-DDThh:mm[:ss[.cc]]Z).""";
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:dateTime .
 
eop:cloudCovera owl:DatatypeProperty ;
    rdfs:label "cloudCover" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Cloud cover percentage (i.e. uom=’%’)." ;
    rdfs:domain eop:CoverageDescription ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:completionTimeFromAscendingNodea owl:DatatypeProperty ;
    rdfs:label "completionTimeFromAscendingNode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Stop time of acquisition in milliseconds from ascending node date." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:compositeTypea owl:DatatypeProperty ;
    rdfs:label "compositeType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Type of composite product expressed as timeperiod that the composite product covers using ISO 8601 duration format P[n]Y[n]M[n]D encoding , e.g. P10D for a 10 day composite." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string ;
    rdfs:seeAlso <https://en.wikipedia.org/wiki/ISO_8601#Durations> .
 
eop:cycleNumbera owl:DatatypeProperty ;
    rdfs:label "cycleNumber" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Number of Cycles." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:discreteWavelengtha owl:DatatypeProperty ;
    rdfs:label "discreteWavelengths" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Discrete wavelength observed in the product.   Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:WavelengthInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:doia owl:DatatypeProperty ;
    rdfs:label "doi" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Digital Object Identifier identifying the product (see http://www.doi.org)." ;
    rdfs:domain eop:DataIdentification ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:dopplerFrequencya owl:DatatypeProperty ;
    rdfs:label "dopplerFrequency" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Doppler Frequency of acquisition.   Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:endWavelengtha owl:DatatypeProperty ;
    rdfs:label "endWavelength" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "End of the observed wavelength range.  Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:WavelengthInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:groundTrackUncertaintya owl:DatatypeProperty ;
    rdfs:label "groundTrackUncertainty" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Measure of the uncertainty of the ground track. Sometimes known as deadband e.g. 1000m (1Km) deadband.  Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:illuminationAzimuthAnglea owl:DatatypeProperty ;
    rdfs:label "illuminationAzimuthAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean illumination/solar azimuth angle given in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:illuminationElevationAnglea owl:DatatypeProperty ;
    rdfs:label "illuminationElevationAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean illumination/solar elevation angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:illuminationZenithAnglea owl:DatatypeProperty ;
    rdfs:label "illuminationZenithAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean illumination/solar zenith angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:incidenceAnglea owl:DatatypeProperty ;
    rdfs:label "incidenceAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition global incidence angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:incidenceAngleVariationa owl:DatatypeProperty ;
    rdfs:label "incidenceAngleVariation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Incidence angle variation in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:instrumenta owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "instrument" ;
    dc:description """The Instrument/Sensor used for the acquisition.
If more than one instrument is used for creating the product, then the AcquisitionInformation object occurs more than once.""";
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain eop:AcquisitionInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:Instrument .
 
eop:instrumentAzimuthAnglea owl:DatatypeProperty ;
    rdfs:label "instrumentAzimuthAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean instrument azimuth angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:instrumentElevationAnglea owl:DatatypeProperty ;
    rdfs:label "instrumentElevationAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean instrument elevation angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:instrumentShortNamea owl:DatatypeProperty ;
    rdfs:label "instrumentShortName" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Instrument (Sensor) name." ;
    rdfs:domain eop:Instrument ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:instrumentZenithAnglea owl:DatatypeProperty ;
    rdfs:label "instrumentZenithAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Mean instrument zenith angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:lastOrbitDirectiona owl:ObjectProperty ;
    rdfs:label "lastOrbitDirection" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Acquisition orbit direction at the end of the acquisition/product. Assumed to be identical to orbitDirection if not present.
Values:
•           ASCENDING
•           DESCENDING""";
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:OrbitDirectionType .
 
eop:lastOrbitNumbera owl:DatatypeProperty ;
    rdfs:label "lastOrbitNumber" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition last orbit number." ;
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:maximumAltitudea owl:DatatypeProperty ;
    rdfs:label "highestLocation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Lower bound of measurements in vertical dimension.   Unit of measure defined by locationUnit property." ;
    rdfs:domain eop:VerticalSpatialDomain ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:maximumIncidenceAnglea owl:DatatypeProperty ;
    rdfs:label "maximumIncidenceAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Maximum incidence angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:measurementTypea owl:ObjectProperty ;
    rdfs:label "measurementType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Measurement type taken from codelist:
Values:
- ABSORPTION
- EMISSION.""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:MeasurementType .
 
eop:minimumAltitudea owl:DatatypeProperty ;
    rdfs:label "lowestLocation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Upper bound of measurements in vertical dimension.  Unit of measure defined by locationUnit property." ;
    rdfs:domain eop:VerticalSpatialDomain ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:minimumIncidenceAnglea owl:DatatypeProperty ;
    rdfs:label "minimumIncidenceAngle" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Minimum incidence angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:operationalModea owl:DatatypeProperty ;
    rdfs:label "operationalMode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Sensor mode. Possible values are mission specific." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:orbitDirectiona owl:ObjectProperty ;
    rdfs:label "orbitDirection" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Acquisition orbit direction at the start of the acquisition/product.
Values:
•           ASCENDING
•           DESCENDING""";
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:OrbitDirectionType .
 
eop:orbitDurationa owl:DatatypeProperty ;
    rdfs:label "orbitDuration" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Actual orbit duration in milliseconds." ;
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:orbitNumbera owl:DatatypeProperty ;
    rdfs:label "orbitNumber" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Acquisition orbit number." ;
    rdfs:domain eop:OrbitParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:orbitTypea owl:ObjectProperty ;
    rdfs:label "orbitType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "High level characterisation of main mission types taken from a codelist." ;
    rdfs:domain eop:Platform ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:OrbitType .
 
eop:parentIdentifiera owl:DatatypeProperty ;
    rdfs:label "parentIdentifier" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    vann:example """
{
    "parentIdentifier": "SEA_GEC_1P"
}
   """;
    rdfs:comment "Collection identifier." ;
    rdfs:domain eop:DataIdentification ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:pitcha owl:DatatypeProperty ;
    rdfs:label "pitch" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Satellite pitch angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:platforma owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "platform" ;
    dc:description "The Platform used for the acquisition.  If more than one platform is used for creating the product, then the AcquisitionInformation object occurs more than once." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain eop:AcquisitionInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:Platform .
 
eop:platformSerialIdentifiera owl:DatatypeProperty ;
    rdfs:label "platformSerialIdentifier" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Platform serial identifier (e.g. for Seasat : 1)." ;
    rdfs:domain eop:Platform ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:platformShortNamea owl:DatatypeProperty ;
    rdfs:label "platformShortName" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Platform short name (e.g. \"Seasat\" or \"ENVISAT\")." ;
    rdfs:domain eop:Platform ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:polarisationChannelsa owl:ObjectProperty ;
    rdfs:label "polarisationChannels" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Polarisation channel transmit/receive configuration: horizontal, vertical.
Values:
- HH
- HV
- VH
- VV
- HH, VV
- HH, VH
- HH, HV
- VH, VV
- VH, HV
- VV, HV
- VV, VH
- HV, VH
- HH, HV, VH, VV
- UNDEFINED""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:PolarisationChannelsType .
 
eop:polarisationModea owl:ObjectProperty ;
    rdfs:label "polarisationMode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Polarisation mode taken from codelist:
S (for single),
D (for dual),
T (for twin),
Q (for quad),
UNDEFINED.""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:PolarisationModeType .
 
eop:processingCentera owl:DatatypeProperty ;
    rdfs:label "processingCenter" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Processing center code. Possible values are mission specific." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processingDatea owl:DatatypeProperty ;
    rdfs:label "processingDate" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Processing date time." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:dateTime .
 
eop:processingLevela owl:DatatypeProperty ;
    rdfs:label "processingLevel" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Processing level applied to the product: \"1A\", \"1B\", \"1C\", \"2\", \"3\"." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processingMethoda owl:DatatypeProperty ;
    rdfs:label "processingMethod" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Method used to compute datalayer. (e.g. Kalman filtering, ROSE)." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processingMethodVersiona owl:DatatypeProperty ;
    rdfs:label "processingMethodVersion" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Method version (e.g. 1.0)." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processingModea owl:DatatypeProperty ;
    rdfs:label "processingMode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Processing mode taken from mission specific code list.
Examples of values are:
•           NRT
•           NOMINAL
•           BACKLOGGED
•           REPROCESSED
•           VALIDATE.""";
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processorNamea owl:DatatypeProperty ;
    rdfs:label "processorName" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Processor software name (e.g. FastROSE)." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:processorVersiona owl:DatatypeProperty ;
    rdfs:label "processorName" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Processor software version (e.g. 1.0)." ;
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:productContentTypea owl:DatatypeProperty ;
    rdfs:label "productContentType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Classification of product according to ground type covered. Note cardinality allows for multiple instances of this property.
Allowed Values:
•           COASTAL
•           CONTINENTAL
•           HYDROLOGY
•           ICE
•           OPEN_OCEAN
•           OTHER
•           REGIONAL.""";
    rdfs:domain eop:ProcessingInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:productGroupIda owl:DatatypeProperty ;
    rdfs:label "productGroupId" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Holds the identifier of a particular group to which the product belongs to. Group members represent then \"granules\" or \"portions\" of end-user products that are eligible for specific aggregations (e.g. all Sentinel-2 granules having the same productGroupId can be assembled together to form a Sentinel-2 end-user product)." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:productInformationa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "productInformation" ;
    dc:description "Contains product information." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains product information." ;
    rdfs:domain eop:Properties ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:ProductInformation .
 
eop:productTypea owl:DatatypeProperty ;
    rdfs:label "productType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Describes the product type in case that mixed types are available within a single collection, this is a ground segment specific definition." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:productVersiona owl:DatatypeProperty ;
    rdfs:label "productVersion" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Product version." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:qualityDegradationa owl:DatatypeProperty ;
    rdfs:label "qualityDegradation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Quality degradation percentage (i.e. uom=’%’)." ;
    rdfs:domain eop:QualityInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:qualityDegradationQuotationModea owl:DatatypeProperty ;
    rdfs:label "qualityDegradationQuotationMode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Indicator to know how the quality degradation percentage has been calculated.
Values:
AUTOMATIC, MANUAL.""";
    rdfs:domain eop:QualityInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:qualityDegradationTaga owl:DatatypeProperty ;
    rdfs:label "qualityDegradationTag" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Contains further textual information concerning the quality degradation.  It shall be provided if qualityStatus value is DEGRADED. Possible values are mission specific and should refer to mission/ground segment dedicated codeSpace.
Example of values could be "RADIOMETRY" or "GEOLOCATION".""";
    rdfs:domain eop:QualityInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:qualityInformationa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "qualityInformation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains properties related to the quality of the product." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:QualityInformation .
 
eop:qualityStatusa owl:DatatypeProperty ;
    rdfs:label "qualityStatus" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Indicator that specifies whether the product quality is degraded or not.  This optional field shall be provided if the product has passed a quality check.
Values:
DEGRADED, NOMINAL.""";
    rdfs:domain eop:QualityInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:relativeOrbitNumbera owl:DatatypeProperty ;
    rdfs:label "relativeOrbitNumber" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Orbit number since start of cycle." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:resolutiona owl:DatatypeProperty ;
    rdfs:label "resolution" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Sensor resolution.  Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:rolla owl:DatatypeProperty ;
    rdfs:label "roll" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Satellite roll angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:samplingRatea owl:DatatypeProperty ;
    rdfs:label "samplingRates" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Rate at which samples are provided in product. Some products may contain more than one sampling rate, e.g. 1kHz and 20kHz. Cardinality is therefore zero to many.  Unit of measure (Hz) is SI derived unit without prefix." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:sensorTypea owl:ObjectProperty ;
    rdfs:label "sensorType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Sensor type based on codelist.  Values:
       - OPTICAL
       - RADAR
       - ALTIMETRIC
       - ATMOSPHERIC
       - LIMB.""";
    rdfs:domain eop:Instrument ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:SensorType .
 
eop:sizea owl:DatatypeProperty ;
    rdfs:label "size" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Product size (bytes) allowing the user to realise how long a download is likely to take." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:snowCovera owl:DatatypeProperty ;
    rdfs:label "snowCover" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Snow cover percentage (i.e. uom=’%’)." ;
    rdfs:domain eop:CoverageDescription ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:spectralRangea owl:ObjectProperty ;
    rdfs:label "spectralRange" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """The observed Spectral Range:
Values:
- INFRARED
- NIR
- SWIR
- MWIR
- LWIR
- FIR
- UV
- VISIBLE
- MICROWAVE
- OTHER.""";
    rdfs:domain eop:WavelengthInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:SpectralRangeType .
 
eop:startTimeFromAscendingNodea owl:DatatypeProperty ;
    rdfs:label "startTimeFromAscendingNode" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Start time of acquisition in milliseconds from ascending node date." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:integer .
 
eop:startWavelengtha owl:DatatypeProperty ;
    rdfs:label "startWavelength" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Start of the observed wavelength range.  Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:WavelengthInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:statusa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "status" ;
    dc:description """Refers to product status.
  
Fixed Values :
 - ARCHIVED
 - ACQUIRED
 - CANCELLED
 - FAILED
 - PLANNED
 - POTENTIAL
 - REJECTED
 - QUALITYDEGRADED.""";
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain eop:Properties ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:StatusType .
 
eop:statusDetaila owl:DatatypeProperty ;
    rdfs:label "statusDetail" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "This field refers to the status value. It should be used to motivate the reason of a failure, cancelation, rejection or degraded quality." ;
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:statusSubTypea owl:DatatypeProperty ;
    rdfs:label "statusSubType" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Refines the status of a product when the "status" is set to "ARCHIVED". 
Possible values:
- "ON-LINE"
- "OFF-LINE".""";
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:swathIdentifiera owl:DatatypeProperty ;
    rdfs:label "swathIdentifier" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Swath identifier (e.g. Envisat ASAR has 7 distinct swaths (I1,I2,I3…I7) that correspond to precise incidence angles for the sensor)." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:tileIda owl:DatatypeProperty ;
    rdfs:label "tileId" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """While track/frame can be used to represent the first part of an MGRS coordinate (i.g. grid zone), the tileId identifies e.g. the second part of an MGRS coordinate (square identification), e.g. in case of Sentinel.
Used when the world reference system coordinates can not be expressed in X/Y (Track/Frame) terms, such has for UTM tiles. (used for Sentinel-2 L1C granules).""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:timelinessa owl:DatatypeProperty ;
    rdfs:label "timeliness" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """Timeliness of the product, such as"near real time","rush". Possible values are mission specific and shall refer to mission/ground segment dedicated codeSpace.
Example of values could be "NRT", "NOMINAL", "NTC" or "STC".""";
    rdfs:domain eop:ProductInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:verticalResolutiona owl:DatatypeProperty ;
    rdfs:label "verticalResolution" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment """lmb: Vertical spacing of data (if regular)
atm: Full width at half maximum of the rows of the vertical averaging kernel matrix
Unit of measure is SI base unit (m) without prefix.""";
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:wavelengthResolutiona owl:DatatypeProperty ;
    rdfs:label "wavelengthResolution" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Spacing between consecutive wavelengths.   Unit of measure is SI base unit (m) without prefix." ;
    rdfs:domain eop:WavelengthInformation ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:wavelengthsa owl:ObjectProperty ;
    rdfs:label "wavelengths" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "List of discrete wavelengths observed in the product." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range eop:WavelengthInformation .
 
eop:wrsLatitudeGrida owl:DatatypeProperty ;
    rdfs:label "wrsLatitudeGrid" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Neutral wrsLatitudeGrid equivalent to frame in track/frame,  J in K/J, etc." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:wrsLongitudeGrida owl:DatatypeProperty ;
    rdfs:label "wrsLongitudeGrid" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Neutral wrsLongitudeGrid equivalent to track in track/frame, K in K/J, etc." ;
    rdfs:domain eop:AcquisitionParameters ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:string .
 
eop:yawa owl:DatatypeProperty ;
    rdfs:label "yaw" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Satellite yaw angle in degrees (i.e. uom=’deg’)." ;
    rdfs:domain eop:AcquisitionAngles ;
    rdfs:isDefinedBy eop: ;
    rdfs:range xsd:double .
 
eop:AltitudeUnitTypea owl:Class ;
    rdfs:label "AltitudeUnitType" ;
    rdfs:comment "Enumeration of altitudeUnit constants." ;
    rdfs:isDefinedBy eop: ;
    owl:equivalentClass [ a owl:Class ;
            owl:oneOf ( <http://www.opengis.net/ont/eo-geojson/1.0/Unit/Bar> <http://www.opengis.net/ont/eo-geojson/1.0/Unit/Meter> ) ] .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/FIR> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Far Infrared (FIR)." ;
    skos:broader <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/LWIR> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Long Wavelength Infrared (LWIR)." ;
    skos:broader <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/MWIR> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Mid Wavelength Infrared (MWIR)." ;
    skos:broader <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/NIR> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Near Infrared (NIR)." ;
    skos:broader <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/SWIR> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant for Short Wavelength Infrared (SWIR)." ;
    skos:broader <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> .
 
eop:TemporalInformationa owl:Class ;
    rdfs:label "TemporalInformation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains the properties related to the start and end time of the acquisition of the data.  Its properties are inherited by the AcquisitionParameters object." ;
    rdfs:isDefinedBy eop: .
 
<http://www.opengis.net/ont/eo-geojson/1.0/Unit/Bar> a eop:Unit,
        owl:NamedIndividual ;
    rdfs:label "bar" ;
    dc:description "Unit constant representing non-SI unit \"bar\" (bar)." .
 
<http://www.opengis.net/ont/eo-geojson/1.0/Unit/Meter> a eop:Unit,
        owl:NamedIndividual ;
    rdfs:label "meter" ;
    dc:description "Unit constant representing SI unit \"meter\" (m)." .
 
eop:Unita owl:Class ;
    rdfs:label "Unit" ;
    rdfs:comment "Base class to include all unit constants." ;
    rdfs:isDefinedBy eop: .
 
eop:AntennaLookDirectionTypea owl:Class ;
    rdfs:label "AntennaLookDirectionType" ;
    rdfs:comment "Enumeration of antennaLookDirectionType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:CoverageDescriptiona owl:Class ;
    rdfs:label "CoverageDescription" ;
    rdfs:comment "Contains the properties related to the coverage. Its properties are inherited by the ProductInformation object." ;
    rdfs:isDefinedBy eop: .
 
eop:MeasurementTypea owl:Class ;
    rdfs:label "MeasurementType" ;
    rdfs:comment "Enumeration of measurementType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:OrbitTypea owl:Class ;
    rdfs:label "OrbitType" ;
    rdfs:comment "Enumeration of orbitType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:Propertiesa owl:Class ;
    rdfs:label "Properties" ;
    rdfs:comment "Object containing the properties of the Earth Observation." ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc7946> ;
    rdfs:subClassOf eop:DataIdentification,
        owc:Properties .
 
eop:AcquisitionTypea owl:Class ;
    rdfs:label "AcquisitionType" ;
    rdfs:comment "Enumeration of acquisitionType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:DataIdentificationa owl:Class ;
    rdfs:label "DataIdentification" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Base class of Properties." ;
    rdfs:isDefinedBy eop: .
 
eop:OrbitDirectionTypea owl:Class ;
    rdfs:label "OrbitDirectionType" ;
    rdfs:comment "Enumeration of orbit direction constants." ;
    rdfs:isDefinedBy eop: .
 
eop:Platforma owl:Class ;
    rdfs:label "Platform" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "Platform",
    "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a1498dff-002d-4d67-9091-16822c608221",
    "platformShortName": "Seasat",
    "platformSerialIdentifier": "1",
    "orbitType": "LEO"
}
   """;
    rdfs:comment "Contains the properties of the platform (satellite) that was used to perform the observation.  Use as \"id\" the URI defined by GCMD to identify the platform.  A list of URI can be downloaded from https://gcmdservices.gsfc.nasa.gov/static/kms/platforms/platforms.rdf." ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://gcmdservices.gsfc.nasa.gov/static/kms/platforms/platforms.rdf> .
 
eop:VerticalSpatialDomaina owl:Class ;
    rdfs:label "VerticalSpatialDomain" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains the properties related to the spatial extent in the vertical dimension.  Its properties are inherited by the AcquisitionParameters object." ;
    rdfs:isDefinedBy eop: .
 
eop:AcquisitionInformationa owl:Class ;
    rdfs:label "AcquisitionInformation" ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "AcquisitionInformation",
    "platform": {
        "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
        "platformShortName": "Seasat",
        "platformSerialIdentifier": "1"
    },
    "instrument": {
        "id":  "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
        "sensorType": "RADAR",
        "instrumentShortName": "SAR"
    }, 
    "acquisitionParameters": {
        "operationalMode": "IM",
        "polarisationMode": "S",
        "polarisationChannels": "HH",
        "beginningDateTime": "1978-09-27T01:04:30Z",
        "endingDateTime": "1978-09-27T01:04:45Z",
        "acquisitionType": "NOMINAL",
        "acquisitionSubType": "DEFAULT",
        "orbitNumber": "1316",
        "orbitDirection": "DESCENDING",
        "antennaLookDirection": "RIGHT",
        "acquisitionAngles": {
            "minimumIncidenceAngle": 19.6,
            "maximumIncidenceAngle": 9.6,
            "incidenceAngleVariation": 9.6
        }
    }
}
   """;
    rdfs:comment "Acquisition information of the Earth Observation as defined in OGC 17-003" ;
    rdfs:isDefinedBy eop: .
 
eop:QualityInformationa owl:Class ;
    rdfs:label "QualityInformation" ;
    rdfs:comment "Contains the properties related to the quality of the product." ;
    rdfs:isDefinedBy eop: .
 
<http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/INFRARED> a eop:SpectralRangeType ;
    dc:description "SpectralRange type constant." ;
    skos:narrower <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/FIR>,
        <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/LWIR>,
        <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/MWIR>,
        <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/NIR>,
        <http://www.opengis.net/ont/eo-geojson/1.0/SpectralRange/SWIR> .
 
eop:CategoryTypea owl:Class ;
    rdfs:label "CategoryType" ;
    rdfs:comment "Enumeration of category constants." ;
    rdfs:isDefinedBy eop: .
 
eop:PolarisationModeTypea owl:Class ;
    rdfs:label "PolarisationModeType" ;
    rdfs:comment "Enumeration of polarisationMode constants." ;
    rdfs:isDefinedBy eop: .
 
eop:SensorTypea owl:Class ;
    rdfs:label "SensorType" ;
    rdfs:comment "Enumeration of sensorType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:WavelengthInformationa owl:Class ;
    rdfs:label "WavelengthInformation" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains the properties of the instrument related to the wavelengths used for the observation." ;
    rdfs:isDefinedBy eop: .
 
eop:OrbitParametersa owl:Class ;
    rdfs:label "OrbitParameters" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:comment "Contains the properties related to the orbit.  Its properties are inherited by the AcquisitionParameters object." ;
    rdfs:isDefinedBy eop: .
 
eop:StatusTypea owl:Class ;
    rdfs:label "StatusType" ;
    rdfs:comment "Enumeration of acquisition status constants." ;
    rdfs:isDefinedBy eop: .
 
eop:ProcessingInformationa owl:Class ;
    rdfs:label "ProcessingInformation" ;
    rdfs:comment "Contains the properties related to the processing of the data." ;
    rdfs:isDefinedBy eop: .
 
eop:SpectralRangeTypea owl:Class ;
    rdfs:label "SpectralRangeType" ;
    rdfs:comment "Enumeration of spectralRangeType constants." ;
    rdfs:isDefinedBy eop: .
 
eop:ProductInformationa owl:Class ;
    rdfs:label "ProductInformation" ;
    rdfs:comment "Product information of the Earth Observation product as defined in OGC 17-003" ;
    rdfs:isDefinedBy eop: ;
    rdfs:subClassOf eop:CoverageDescription,
        eop:ProcessingInformation .
 
eop:Instrumenta owl:Class ;
    rdfs:label "Instrument" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "Instrument",
    "id":  "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
    "sensorType": "RADAR",
    "instrumentShortName": "SAR"
}
   """;
    rdfs:comment "Contains the properties of the instrument that was used to perform the observation.  Use as \"id\" the URI defined by GCMD to identify the instrument.  A list of URI can be downloaded from https://gcmdservices.gsfc.nasa.gov/static/kms/instruments/instruments.rdf." ;
    rdfs:isDefinedBy eop: ;
    rdfs:seeAlso <https://gcmdservices.gsfc.nasa.gov/static/kms/instruments/instruments.rdf> .
 
eop:AcquisitionParametersa owl:Class ;
    rdfs:label "AcquisitionParameters" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "AcquisitionParameters",
    "beginningDateTime": "1978-09-27T01:04:30Z",
    "endingDateTime": "1978-09-27T01:04:45Z",
    "acquisitionType": "NOMINAL",
    "acquisitionSubType": "DEFAULT",
    "orbitNumber": "1316",
    "orbitDirection": "DESCENDING",
    "antennaLookDirection": "RIGHT",
    "acquisitionAngles": {
        "minimumIncidenceAngle": 19.6,
        "maximumIncidenceAngle": 9.6,
        "incidenceAngleVariation": 9.6
    }
}
   """;
    rdfs:comment "Contains the properties related to the acquisition of the data." ;
    rdfs:isDefinedBy eop: ;
    rdfs:subClassOf eop:OrbitParameters,
        eop:TemporalInformation,
        eop:VerticalSpatialDomain .
 
eop:PolarisationChannelsTypea owl:Class ;
    rdfs:label "PolarisationChannelsType" ;
    rdfs:comment "Enumeration of polarisationChannels constants." ;
    rdfs:isDefinedBy eop: .
 
eop:AcquisitionAnglesa owl:Class ;
    rdfs:label "AcquisitionAngles" ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "AcquisitionAngles",
    "minimumIncidenceAngle": 19.6,
    "maximumIncidenceAngle": 9.6,
    "incidenceAngleVariation": 9.6
}
   """;
    rdfs:comment "Contains the properties related to the acquisition angles." ;
    rdfs:isDefinedBy eop: .
 
eop:a owl:Ontology ;
    dc:contributor "John Taylor, CGI"^^xsd:string,
        "Olivier Barois, European Space Agency"^^xsd:string,
        "Sirko Schindler, DLR"^^xsd:string ;
    dc:creator "Yves Coene, Spacebel s.a."^^xsd:string ;
    dc:date "2018-11-09"^^xsd:string ;
    dc:title "OGC 17-003 - Earth Observation Dataset Metadata Vocabulary" ;
    dcterms:license "http://www.opengeospatial.org/ogc/software" ;
    vann:preferredNamespacePrefix "eop" ;
    vann:preferredNamespaceUri "http://www.opengis.net/ont/eo-geojson/1.0/" ;
    void:vocabulary dcterms: ;
    rdfs:comment """This vocabulary defines the classes and properties required to model Earth Observation (EO) metadata for datasets (i.e. products or granules).  It provides the models for the exchange of information describing EO datasets, both within and between different organisations.
        The implementation is derived from the conceptual models defined in the Earth Observation Metadata Profile of Observations and Measurements OGC 10-157r4, and the Unified Metadata Model for Granules (UMM-G)."""^^xsd:string;
    owl:imports <http://www.opengis.net/ont/owc/1.0/>,
        <http://purl.org/geojson/vocab#> ;
    owl:versionInfo "1.0.0"^^xsd:string .

B.3.2 OWC GeoJSON Vocabulary

The Vocabulary in the current section is required by the EO GeoJSON Vocabulary presented in the previous section. It is expected to be replaced in the future by an official OWL vocabulary representing OGC 14-055r2 resources.


@prefixatom: <http://www.w3.org/2005/Atom/> .
@prefixdc: <http://purl.org/dc/elements/1.1/> .
@prefixdcterms: <http://purl.org/dc/terms/> .
@prefixianarel: <http://www.iana.org/assignments/relation/> .
@prefixmedia: <http://search.yahoo.com/mrss/> .
@prefixowc: <http://www.opengis.net/ont/owc/1.0/> .
@prefixowl: <http://www.w3.org/2002/07/owl#> .
@prefixrdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefixrdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefixskos: <http://www.w3.org/2004/02/skos/core#> .
@prefixvann: <http://purl.org/vocab/vann/> .
@prefixvoid: <http://rdfs.org/ns/void#> .
@prefixxml: <http://www.w3.org/XML/1998/namespace> .
@prefixxsd: <http://www.w3.org/2001/XMLSchema#> .
 
ianarel:alternatea owl:ObjectProperty ;
    rdfs:label "alternates" ;
    dc:description """Reference to a description of the resource in an alternative format.
Is defined by OGC 14-055r2 §7.1.2.""";
    dcterms:source "OGC 17-003, OGC 14-055r2"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "alternates": [
        {
            "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
            "type": "application/atom+xml",
            "title": "Atom format"
        }
    ]
}
   """;
    rdfs:isDefinedBy owc: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
ianarel:enclosurea owl:ObjectProperty ;
    rdfs:label "data" ;
    dc:description "Reference to the location of the data resource as defined by OGC 14-055r2 §7.1.2.12" ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "data": [
        {
            "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
            "type": "application/binary",
            "title": "Download"
        }
    ]
}
   """;
    rdfs:isDefinedBy owc: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
ianarel:icona owl:ObjectProperty ;
    rdfs:label "previews" ;
    dc:description """Reference to a quicklook or browse image representing the resource.
Is defined by OGC 14-055r2 §7.1.2.10""";
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "previews": [
        {
            "href": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
            "type": "image/png",
            "title": "Quicklook"
        }
    ]
}
   """;
    rdfs:isDefinedBy owc: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc4287#section-4.2.5>,
        <https://tools.ietf.org/html/rfc5988> .
 
ianarel:viaa owl:ObjectProperty ;
    rdfs:label "via" ;
    dc:description "Reference to a description of the resource in its original format.  Is defined by OGC 14-055r2 §7.1.2.15" ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    rdfs:isDefinedBy owc: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc5988> .
 
owc:codea owl:DatatypeProperty ;
    rdfs:label "code" ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    vann:example """
    "code": "http://www.opengis.net/spec/owc-geojson/1.0/req/wms"
   """;
    rdfs:comment """Code identifying the type of offering, equal to a requirement class identifier (URI) for the extension defining the operation.
Examples:
- http://www.opengis.net/spec/owc-geojson/1.0/req/wcs
- http://www.opengis.net/spec/owc-geojson/1.0/req/wmts""";
    rdfs:domain owc:Offering ;
    rdfs:isDefinedBy owc: ;
    rdfs:range xsd:anyURI ;
    rdfs:seeAlso <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#54> .
 
owc:linksa owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "links" ;
    dc:description "Refers to related, actionable resources including download location, quicklook, original or alternative metadata representations." ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    rdfs:domain owc:Properties ;
    rdfs:isDefinedBy owc: ;
    rdfs:range owc:Links .
 
owc:offeringsa owl:ObjectProperty ;
    rdfs:label "offerings" ;
    dc:description "Service or online content offering for the resource targeted at OGC compliant clients.  See OGC 14-055r2." ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    rdfs:domain owc:Properties ;
    rdfs:isDefinedBy owc: ;
    rdfs:range owc:Offering .
 
owc:operationsa owl:ObjectProperty ;
    rdfs:label "operations" ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    rdfs:comment "Operations used to invoke the service." ;
    rdfs:domain owc:Offering ;
    rdfs:isDefinedBy owc: ;
    rdfs:range owc:Operation ;
    rdfs:seeAlso <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#54> .
 
atom:hrefa owl:DatatypeProperty,
        owl:FunctionalProperty ;
    rdfs:label "href" ;
    dc:description "URI describing the related resource.  Is defined by OGC 14-055r2 §7.1.10." ;
    dcterms:source "OGC 14-055r2"^^xsd:string ;
    rdfs:domain [ a owl:Class ;
            owl:unionOf ( atom:Link owc:Operation ) ] ;
    rdfs:isDefinedBy owc: ;
    rdfs:range xsd:anyURI ;
    owl:equivalentProperty rdf:about .
 
atom:lengtha owl:DatatypeProperty ;
    rdfs:label "length" ;
    dc:description "Hint about the content length (in bytes) of the representation that is expected to be returned when the value of href is dereferenced.  Is defined by Atom (RFC4287)." ;
    dcterms:source "RFC4287"^^xsd:string ;
    rdfs:domain atom:Link ;
    rdfs:isDefinedBy atom: ;
    rdfs:range xsd:integer ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc4287> .
 
atom:typea owl:DatatypeProperty,
        owl:FunctionalProperty ;
    rdfs:label "type" ;
    dc:description "Hint about the type of the representation that is expected to be returned when the value of href is dereferenced." ;
    dcterms:source "OGC 17-003"^^xsd:string ;
    rdfs:domain [ a owl:Class ;
            owl:unionOf ( atom:Link owc:Operation ) ] ;
    rdfs:isDefinedBy atom: ;
    rdfs:range xsd:string ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc4287> .
 
owc:Linksa owl:Class ;
    rdfs:label "Links" ;
    dcterms:source "OGC 17-003, OGC 14-055r2"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
            "type": "Links",
    "data": [
        {
            "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
            "type": "application/binary",
            "title": "Download"
        }
    ],
    "previews": [
        {
            "href": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
            "type": "image/png",
            "title": "Quicklook"
        }
            ],
    "alternates": [
        {
            "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
            "type": "application/atom+xml",
            "title": "Atom format"
        }
    ]
}
   """;
    rdfs:comment "Contains references to related resources as hypermedia links.  They include references to quicklooks, data download links or alternative representations of the metadata.  Inherits properties defined by OGC 14-055r2." ;
    rdfs:isDefinedBy owc: .
 
owc:Propertiesa owl:Class ;
    rdfs:label "Properties" ;
    rdfs:comment "Object containing the properties of the OWS Context Feature." ;
    rdfs:isDefinedBy owc: ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc7946> .
 
owc:Offeringa owl:Class ;
    rdfs:label "Offering" ;
    dcterms:source "OGC 12-084r2, OGC 14-055r2"^^xsd:string ;
    vann:example """
{
    "@context": "https://www.opengis.net/eo-geojson/1.0",
    "type": "Offering",
    "code": "http://www.opengis.net/spec/owc-geojson/1.0/req/wcs",
    "operations": [
        {
            "code": "GetCapabilities",
            "method": "GET",
            "type": "application/xml",
            "href": "http://fedeo.esa.int/geoserver/wcs?REQUEST=GetCapabilities&version=2.0.1&service=WCS"
                       },
        {
            "code": "GetCoverage",
            "method": "GET",
            "type": "application/x-binary",
            "href": "http://fedeo.esa.int/geoserver/wcs?service=wcs&version=2.0.1&request=getcoverage&coverageid=ASA_IMM_1PNIPA20080308_183226_000001722066_00371_31487_2902"                                                                       
        }
    ]
}
   """;
    rdfs:comment "Service or inline content offering for the EO product intended to be consumed by OGC-compliant clients.  Is defined by OGC 14-055r2." ;
    rdfs:isDefinedBy <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#54>,
        owc: ;
    rdfs:seeAlso <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#54> .
 
owc:Operationa owl:Class ;
    rdfs:label "Operation" ;
    dcterms:source "OGC 12-084r2, OGC 14-055r2"^^xsd:string ;
    rdfs:comment "Defines the operation either to get the information or to get the capabilities.  Is defined by OGC 14-055r2." ;
    rdfs:isDefinedBy <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#60>,
        owc: ;
    rdfs:seeAlso <http://docs.opengeospatial.org/is/12-084r2/12-084r2.html#60> .
 
atom:Linka owl:Class ;
    rdfs:label "Link" ;
    dcterms:source "RFC 4287, OGC 14-055r2"^^xsd:string ;
    rdfs:comment "A link contains the properties of a hypermedia link to a resource identified by its URI." ;
    rdfs:isDefinedBy atom:,
        <https://tools.ietf.org/html/rfc4287#section-4.2.7> ;
    rdfs:seeAlso <https://tools.ietf.org/html/rfc4287#section-4.2.7> .
 
owc:a owl:Ontology ;
    dc:contributor "John Taylor, CGI"^^xsd:string,
        "Olivier Barois, European Space Agency"^^xsd:string ;
    dc:creator "Yves Coene, Spacebel s.a."^^xsd:string ;
    dc:date "2018-11-08"^^xsd:string ;
    dc:title "OGC 14-055r2 - OGC OWS Context Vocabulary" ;
    dcterms:license "http://www.opengeospatial.org/ogc/software" ;
    vann:preferredNamespacePrefix "owc" ;
    vann:preferredNamespaceUri "http://www.opengis.net/ont/owc/1.0/" ;
    void:vocabulary dcterms: ;
    rdfs:comment """This vocabulary defines the classes and properties required to model OWS Context classes and properties inherited by OGC 17-003.
        The implementation is derived from the conceptual models defined in the OGC 14-055r2 document."""^^xsd:string;
    owl:versionInfo "1.0.0 D1"^^xsd:string .

Annex C: EO Vocabulary Mapping (Normative)

C.1 Vocabulary to Models Mapping

The table below maps the JSON and EO Vocabulary Properties to the equivalent property in the XML encoding from OGC 10-157r4. It also maps the EO Properties to the equivalent property of the UMM-G Model [OR2], [OR3], [OR4].

The JSON property name included in column 1 corresponds to the JSON-LD property name included in column 2, compacted according to the normative JSON-LD context provided in annex B.2 of the current document.

JSON Property	EO Vocabulary Property	OGC 10-157r4 XPath [OR1]	UMM-G/UMM-Common/UMM-C Property [OR2], [OR3], [OR4]	Comments
acquisitionDate	eop:acquisitionDate	downlinkedTo/DownlinkInformation/ acquisitionDate
acquisitionInformation	eop:acquisitionInformation		UMM-G Acquisition Information	Table 5: Properties object properties
AcquisitionInformation	eop:AcquisitionInformation (Class)		UMM-G Acquisition Information	Table 14: AcquisitionInformation object properties
acquisitionParameters	eop:acquisitionParameters			Table 14: AcquisitionInformation object properties
AcquisitionParameters	eop:AcquisitionParameters (Class)			Table 18: AcquisitionParameters object properties
acquisitionStation	eop:acquisitionStation	downlinkedTo/DownlinkInformation/ acquisitionStation		Table 18: AcquisitionParameters object properties
acquisitionSubType	eop:acquisitionSubType	EarthObservationMetadata/ acquisitionSubType	None identified	Table 18: AcquisitionParameters object properties
acquisitionType	eop:acquisitionType	EarthObservationMetadata/ acquisitionType	None identified	Table 18: AcquisitionParameters object properties
acrossTrack IncidenceAngle	eop:acrossTrack IncidenceAngle	acquisitionParameters/ Acquisition/ acrossTrackIncidenceAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
additionalAttributes	eop:additionalAttributes	EarthObservationMetadata/ vendorSpecific/SpecificInformation	UMM-G Data Identification / AdditionalAttributes / AdditionalAttribute/Name Data Identification / AdditionalAttributes / AdditionalAttribute/Values/Value	Table 9: Data Identification properties
alongTrack IncidenceAngle	eop:alongTrack IncidenceAngle	acquisitionParameters/Acquisition/ alongTrackIncidenceAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
alternates [NR5]	iana:alternate			Table 6: Links object properties
antennaLookDirection	eop:antennaLookDirection	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:antennaLookDirection	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 18: AcquisitionParameters object properties
archivingCenter	eop:archivingCenter	archivedIn/ ArchivingInformation/archivingCenter	UMM-G AdditionalAttribute/ ArchiveLocation/distributionInformation	Table 20: ProductInformation object properties
archivingDate	eop:archivingDate	archivedIn/ ArchivingInformation/archivingDate		Table 20: ProductInformation object properties
ascendingNodeDate	eop:ascendingNodeDate	EarthObservationEquipment/ acquisitionParameters/ Acquisition/ascendingNodeDate	Spatial Information / Spatial Option 8 / PlatformOrbitInfo / EquatorCrossingDateTime	Table 12: OrbitParameters object properties
ascendingNodeLongitude	eop:ascendingNodeLongitude	acquisitionParameters/Acquisition/ ascendingNodeLongitude	Spatial Information / Spatial Option 8 / PlatformOrbitInfo / EquatorCrossingLongitude	Table 12: OrbitParameters object properties
asWKT	gsp:asWKT	om:featureOfInterest / eop:Footprint	Spatial Information / Spatial Extent	JSON-LD alternative for gj:coordinates to avoid using multi-dimensional arrays.
available	dct:available			Table 9: Data Identification properties
availabilityTime	eop:availabilityTime	om:resultTime/gml:TimeInstant/ gml:timePosition	UMM-G Data Quality Information / production Date Time/ ProductionDateTime	Table 20: ProductInformation object properties
bbox	gj:bbox		UMM-G Spatial Information /Spatial Option 4 – Bounding Box Spatial Information / Spatial Option 5 – Bounding Box with Center Point Or UMM-C SpatialExtent/HorizontalSpatialDomain/ Geometry/BoundingRectangles	Table 4: EarthObservation object properties
beginningDateTime	ical:dtstart	om:phenomenonTime/ gml:TimePeriod/ gml:beginPosition	Temporal Information / TemporalExtent/RangeDateTime/ BeginningDateTime Temporal Information / TemporalExtent/SingleDateTime Temporal Information / TemporalExtent/PeriodicDateTime/ StartDate	Table 13: TemporalInformation object properties
category	media:category	eop:EarthObservationResult/ browse/BrowseInformation/type eop:EarthObservationResult/ Product/ProductInformation/type eop:EarthObservationResult/ mask/MaskInformation/type		Table 7: Link object properties
cloudCover	eop:cloudCover	EarthObservationResult/ opt:EarthObservationResult/ opt:cloudCoverPercentage atm:EarthObservationResult/ atm:cloudCoverPercentage ssp:EarthObservationResult / ssp:cloudCoverPercentage	Coverage Description / Cloud Cover	Table 23: CoverageDescription object properties
completionTime FromAscendingNode	eop:completionTime FromAscendingNode	acquisitionParameters/Acquisition/ completionTimeFromAscendingNode	None identified UMM-G Coverage Description / AdditionalAttribute	Table 18: AcquisitionParameters object properties
compositeType	eop:compositeType	EarthObservationMetadata/ processing/ProcessingInformation/ compositeType	None identified UMM-G Coverage Description / AdditionalAttribute	Table 22: ProcessingInformation object properties Type of composite product expressed as timeperiod that the composite product covers (e.g. P10D for a 10 day composite)
conformsTo	dct:conformsTo	EarthObservationResult/ browse/BrowseInformation/ referenceSystemIdentifier EarthObservationResult/ product/ProductInformation/ referenceSystemIdentifier EarthObservationResult/ mask/MaskInformation/ referenceSystemIdentifier	UMM-G Coverage Description / AdditionalAttribute Spatial Information / Tiling Identification System	Table 7: Link object properties
coordinates	gj:coordinates	EarthObservation/ om:featureOfInterest / eop:Footprint	Spatial Information / Spatial Extent	Table 10: Geometry object properties
created	dct:created		Data Identification / Data Date (CREATE)	Table 9: Data Identification properties
creationDate			Metadata Information / Metadata Date (CREATE)	Table 8: MetadataInformation properties
cycleNumber	eop:cycleNumber	alt:Acquisition/ alt:cycleNumber	UMM-C: TemporalExtent/PeriodicDateTime/ PeriodCycleDurationValue	Table 18: AcquisitionParameters object properties
data [NR5]	iana:enclosure	EarthObservationResult/ product/ProductInformation/ filename	UMM-C RelatedURL	Table 6: Links object properties This is the reference to the location of the product itself – so download link The UMM-C RelatedURL element includes cases where the download link is provided
DataIdentification	eop:DataIdentification (Class)			Has properties defined in Table 9: Data Identification properties.
date	dct:date	EarthObservation/ om:phenomenonTime/gml:TimePeriod	UMM-C TemporalExtent/RangeDateTime UMM-G Data Identification / Data Date [R]	Table 9: Data Identification properties
description	dct:description	EarthObservationEquipment/ instrument/Instrument/description	UMM-C Platform/Instrument/Characteristics/Description	Table 16: Instrument object properties
discreteWavelengths	eop:discreteWavelength	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ discreteWavelengths		Table 17: WavelengthInformation object properties
doi	eop:doi	EarthObservationMetadata/ doi	UMM-C: Publication Reference PublicationReference/DOI UMM-G: Data Identification / Universal Reference Identifier [R]	Table 9: Data Identification properties
dopplerFrequency	eop:dopplerFrequency	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:dopplerFrequency	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 18: AcquisitionParameters object properties
endingDateTime	ical:dtend	om:phenomenonTime/ gml:TimePeriod/ gml:endPosition	Temporal Information / TemporalExtent/RangeDateTime/ endingDateTime Temporal Information / TemporalExtent/SingleDateTime Temporal Information / TemporalExtent/PeriodicDateTime/ EndDate	Table 13: TemporalInformation object properties
endWavelength	eop:endWavelength	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ WavelengthInformation/endWavelength	UMM-C Platform/Instrument/Characteristics ../Name ../Description ../DataType ../Unit ../Value	Table 17: WavelengthInformation object properties
expression	media:expression	eop:EarthObservationResult/ browse/BrowseInformation eop:EarthObservationResult/ Product/ProductInformation eop:EarthObservationResult/ mask/MaskInformation		Table 7: Link object properties
FeatureCollection	gj:FeatureCollection (Class)			Table 24: FeatureCollection object properties
features	gj:features			Table 24: FeatureCollection object properties
format	dct:format	EarthObservationMetadata/Processing/ ProcessingInformation/ nativeProductFormat	UMM-G Distribution Information / Distribution / (a) Data Format Data Identification / Data format	Table 22: ProcessingInformation object properties
geometry	gj:geometry	EarthObservation/ om:featureOfInterest / eop:Footprint	Spatial Information / Spatial Extent / HorizontalSpatialDomain Spatial Information / Spatial Option 1 – Point Spatial Information / Spatial Option 2 – Line Spatial Information / Spatial Option 3 – Polygon Spatial Information / Spatial Option 6 – Polygon with Center Point Spatial Information / Spatial Option 7 – Polygon with Holes	Table 4: EarthObservation object properties
groundTrackUncertainty	eop:groundTrackUncertainty	alt:ProcessingInformation/ alt:groundTrackUncertainty	None identified UMM-G Coverage Description / AdditionalAttribute	Table 18: AcquisitionParameters object properties
hasGeometry	gsp:hasGeometry	om:featureOfInterest / eop:Footprint	UMM-C Spatial Information / Spatial Extent	JSON-LD alternative for gj:geometry to avoid using multi-dimensional arrays.
highestLocation	eop:maximumAltitude	lmb:Footprint/ lmb:maximumAltitude	UMM-C Spatial Information / Spatial Extent / VerticalSpatialDomain	Table 11: Vertical Spatial Domain object properties
identifier	dct:identifier	EarthObservationMetadata/ identifier	UMM-G Data Identification / Producer Identifier	Table 9: Data Identification properties
illumination AzimuthAngle	eop:illumination AzimuthAngle	acquisitionParameters/Acquisition/ illuminationAzimuthAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
illumination ElevationAngle	eop:illumination ElevationAngle	acquisitionParameters/Acquisition/ illuminationElevationAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
illumination ZenithAngle	eop:illumination ZenithAngle	acquisitionParameters/Acquisition/ illuminationZeniththAngle		Table 19: AcquisitionAngles object properties
incidenceAngle	eop:incidenceAngle	acquisitionParameters/Acquisition/ incidenceAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
incidenceAngleVariation	eop:incidenceAngleVariation	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:incidenceAngleVariation	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 19: AcquisitionAngles object properties
Instrument	eop:Instrument (Class)	om:procedure	Acquisition Information / Platform / Instrument (uuid)	Table 16: Instrument object properties
instrument	eop:instrument	om:procedure/ eop:EarthObservationEquipment/ alt:EarthObservationEquipment/ alt:instrument ssp:EarthObservationEquipment/ ssp:instrument	Acquisition Information / Platform / Instrument (uuid)	Table 14: AcquisitionInformation object properties
instrumentAzimuthAngle	eop:instrumentAzimuthAngle	acquisitionParameters/ Acquisition/ instrumentAzimuthAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
instrumentElevationAngle	eop:instrumentElevationAngle	acquisitionParameters/ Acquisition/ instrumentElevationAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
instrumentShortName	eop:instrumentShortName	om:procedure/ EarthObservationEquipment/ instrument/Instrument/shortName	Acquisition Information / Platform / Instrument[20] / ShortName (UMM-Common)	Table 16: Instrument object properties
instrumentZenithAngle	eop:instrumentZenithAngle	acquisitionParameters/ Acquisition/ instrumentZenithAngle	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
lang	dct:language		Metadata Information / Metadata Language	Table 8: MetadataInformation properties
lastOrbitDirection	eop:lastOrbitDirection	EarthObservationEquipment/ acquisitionParameters/ Acquisition/ orbitDirection	Spatial Information Spatial Option 8 / PlatformOrbitInfo/	Table 12: OrbitParameters object properties
lastOrbitNumber	eop:lastOrbitNumber	EarthObservationEquipment/ acquisitionParameters/ Acquisition/ lastOrbitNumber	Spatial Information / Spatial Option 8 / PlatformOrbitInfo/StopOrbitNumber	Table 12: OrbitParameters object properties
length [NR5]	atom:length	EarthObservationResult/ product/ProductInformation/ size		Table 7: Link object properties
Link	atom:link (Class)	EarthObservationResult/ browse/BrowseInformation/filename EarthObservationResult/ product/ProductInformation/ filename EarthObservationResult/ mask/MaskInformation/ fileName		Table 7: Link object properties
links	owc:links			Table 5: Properties object properties
Links	owc:Links (Class)			Table 6: Links object properties
locationUnit	eop:altitudeUnit	lmb:Footprint/ lmb:minimumAltitude lmb:Footprint/ lmb:maximumAltitude (gml:MeasureType)	UMM-C Spatial Information / Spatial Extent / VerticalSpatialDomain	Table 11: Vertical Spatial Domain object properties
lowestLocation	eop:minimumAltitude	lmb:Footprint/ lmb:minimumAltitude	UMM-C Spatial Information / Spatial Extent / VerticalSpatialDomain	Table 11: Vertical Spatial Domain object properties
maximum IncidenceAngle	eop:maximum IncidenceAngle	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:maximumIncidenceAngle	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 19: AcquisitionAngles object properties
measurementType	eop:measurementType	lmb:Sensor/ lmb:measurementType		Table 18: AcquisitionParameters object properties
minimum IncidenceAngle	eop:minimum IncidenceAngle	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:minimumIncidenceAngle	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 19: AcquisitionAngles object properties
operationalMode	eop:operationalMode	EarthObservationEquipment/ sensor/Sensor/operationalMode	UMM-C Platform/Instrument/OperationalMode	Table 18: AcquisitionParameters object properties
orbitDirection	eop:orbitDirection	EarthObservationEquipment/ acquisitionParameters/ Acquisition/ orbitDirection	Spatial Information Spatial Option 8 / PlatformOrbitInfo	Table 12: OrbitParameters object properties
orbitDuration	eop:orbitDuration	EarthObservationEquipment/ acquisitionParameters/Acquisition/ orbitDuration	UMM-C SpatialExtent/OrbitParameters/Period	Table 12: OrbitParameters object properties
orbitNumber	eop:orbitNumber	EarthObservationEquipment/ acquisitionParameters/Acquisition/ orbitNumber	Spatial Information / Spatial Option 8 / PlatformOrbitInfo/OrbitNumber Spatial Information Spatial Option 8 / PlatformOrbitInfo/StartOrbitNumber	Table 12: OrbitParameters object properties
orbitType	eop:orbitType	EarthObservationEquipment/ platform/Platform/orbitType	None identified UMM-G Coverage Description / AdditionalAttribute	Table 15: Platform object properties
parentIdentifier	eop:parentIdentifier	EarthObservationMetadata/ parentIdentifier	Data Identification / Parent Collection Identifier [R] e.g. (a) ShortName	Table 9: Data Identification properties
pitch	eop:pitch	EarthObservationEquipment/ acquisitionParameters/ Acquisition/pitch	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
Platform	eop:Platform (Class)	om:procedure EarthObservationEquipment		Table 15: Platform object properties
platform	eop:platform	om:procedure/ eop:EarthObservationEquipment/ alt:EarthObservationEquipment/ alt:platform ssp:EarthObservationEquipment/ ssp:platform	UMM-G Acquisition Information / Platform	Table 14: AcquisitionInformation object properties
platformSerialIdentifier	eop:platformSerialIdentifier	EarthObservationEquipment/ platform/Platform/serialIdentifier		Table 15: Platform object properties
platformShortName	eop:platformShortName	EarthObservationEquipment/ platform/Platform/shortName	Acquisition Information / Platform / ShortName (UMM-Common )	Table 15: Platform object properties
polarisationChannels	eop:polarisationChannels	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:polarisationChannels	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 18: AcquisitionParameters object properties
polarisationMode	eop:polarisationMode	eop:EarthObservationEquipment/ eop:acquisitionParameters/ sar:Acquisition/ sar:polarisationMode	UMM-G Acquisition Information /Instrument (or Sensor) UMM-C Platform / Instrument / Characteristics	Table 18: AcquisitionParameters object properties
previews [NR5]	iana:icon	EarthObservationResult/ browse/BrowseInformation/ filename	Data Identification / Browse Graphic	Table 6: Links object properties
processingCenter	eop:processingCenter	EarthObservationMetadata/ processing/ ProcessingInformation/ processingCenter	Data Identification / Processing Center (Part of UMM-C)	Table 22: ProcessingInformation object properties
processingDate	eop:processingDate	EarthObservationMetadata/ processing/ ProcessingInformation/ processingDate	Data Quality Information / Production Date Time	Table 22: ProcessingInformation object properties
processingLevel	eop:processingLevel	EarthObservationMetadata/ processing/ProcessingInformation/ processingLevel	Data Identification / Processing Level (Part of UMM-C)	Table 22: ProcessingInformation object properties
processingMethod	eop:processingMethod	EarthObservationMetaData/ processing/ProcessingInformation/ processingMethod	UMM-G Data Quality Information Product Generation Executive (PGE) Information PGEVersionClass/PGEName	Table 22: ProcessingInformation object properties
processingMethodVersion	eop:processingMethodVersion	EarthObservationMetaData/ processing/ProcessingInformation/ processingMethodVersion	UMM-G Data Quality Information Product Generation Executive (PGE) Information PGEVersionClass/PGEVersion	Table 22: ProcessingInformation object properties
processingMode	eop:processingMode	EarthObservationMetaData/ processing/ProcessingInformation/ processingMode		Table 22: ProcessingInformation object properties
processorName	eop:processorName	EarthObservationMetadata/ processing/ ProcessingInformation/ processorName	UMM-G Data Quality Information Product Generation Executive (PGE) Information PGEVersionClass/PGEName	Table 22: ProcessingInformation object properties
processorVersion	eop:processorVersion	EarthObservationMetadata/ processing/ ProcessingInformation/ processorVersion	UMM-G Data Quality Information Product Generation Executive (PGE) Information PGEVersionClass/PGEVersion	Table 22: ProcessingInformation object properties
productContentsType	eop:productContentsType	alt:ProcessingInformation/ alt:productContentsType	None identified UMM-G Data Identification / AdditionalAttribute	Table 22: ProcessingInformation object properties
productGroupId	eop:productGroupId	EarthObservationMetadata/ productGrouptId	UMM-C: Entry Title UMM-G: Data Quality Information / Element Specification / reprocessing Lineage / Element Specification	Table 20: ProductInformation object properties
productInformation	eop:productInformation			Table 5: Properties object properties
ProductInformation	eop:ProductInformation (Class)			Table 20: ProductInformation object properties
productType	eop:productType	EarthObservationMetadata/ productType	UMM-C: Entry Title UMM-G: Data Quality Information / Element Specification / reprocessing Lineage / Element Specification	Table 20: ProductInformation object properties
productVersion	eop:productVersion		Data Identification / Local Version Identifier	Table 20: ProductInformation object properties
profiles	iana:profile
properties	gj:properties			Table 4: EarthObservation object properties
Properties	gj:Properties (Class)			Table 5: Properties object properties.
published	dct:issued		Metadata Information / Metadata Date [R] (CREATE)	Table 8: MetadataInformation properties
qualityDegradation	eop:qualityDegradation	EarthObservationMetadata/ productQualityDegradation	None identified	Table 21: QualityInformation object properties
qualityDegradation QuotationMode	eop:qualityDegradation QuotationMode	EarthObservationMetadata/ productQualityDegradation QuotationMode	None identified	Table 21: QualityInformation object properties
qualityDegradationTag	eop:qualityDegradationTag	EarthObservationMetadata/ productQualityDegradationTag		Table 21: QualityInformation object properties
qualityInformation	eop:qualityInformation			Table 20: ProductInformation object properties
QualityInformation	eop:QualityInformation (Class)			Table 21: QualityInformation object properties
qualityReport	iana:describedby	EarthObservationMetadata/ productQualityReportURL		Table 6: Links object properties
qualityStatus	eop:qualityStatus	EarthObservationMetadata/ productQualityStatus	None identified	Table 21: QualityInformation object properties
referenceSystemIdentifier	eop:referenceSystemIdentifier	product/ProductInformation/ referenceSystemIdentifier	UMM-C Spatial Extent / HorizontalSpatialDomain/Geometry/CoordinateSystem Or GranuleSpatialRepresentation	Table 20: ProductInformation object properties
related	iana:related			Table 6: Links object properties
relativeOrbitNumber	eop:relativeOrbitNumber	alt:Acquisition/alt:relativePassNumber	None identified UMM-G Coverage Description / AdditionalAttribute	Table 18: AcquisitionParameters object properties
resolution	eop:resolution	EarthObservationEquipment/ sensor/Sensor/resolution	UMM-C Platform/Instrument/Characteristics/Unit	Table 18: AcquisitionParameters object properties
roll	eop:roll	acquisitionParameters/ Acquisition/roll	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
samplingRates	eop:samplingRate	alt:ProcessingInformation/ alt: samplingRate		Table 18: AcquisitionParameters object properties
sensorType	eop:sensorType	EarthObservationEquipment/ sensor/Sensor/sensorType	UMM-Common Acquisition Information / Platform/Instrument/Technique	Table 16: Instrument object properties
size	eop:size	product/ ProductInformation/ size	Distribution Information / Distribution / (b) File Size	Table 20: ProductInformation object properties
snowCover	eop:snowCover	opt:EarthObservationResult/ opt:snowCoverPercentage atm:EarthObservationResult/ atm:snowCoverPercentage ssp:EarthObservationResult / ssp:snowCoverPercentage		Table 23: CoverageDescription object properties
spectralRange	eop:spectralRange	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ WavelengthInformation/spectralRange	UMM-C Platform/Instrument/Characteristics ../Name ../Description ../DataType ../Unit ../Value	Table 17: WavelengthInformation object properties
startTimeFrom AscendingNode	eop:startTimeFrom AscendingNode	acquisitionParameters/ Acquisition/ startTimeFromAscendingNode	None identified UMM-G Coverage Description / AdditionalAttribute	Table 18: AcquisitionParameters object properties
startWavelength	eop:startWavelength	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ WavelengthInformation/startWavelength	UMM-C Platform/Instrument/Characteristics ../Name ../Description ../DataType ../Unit ../Value	Table 17: WavelengthInformation object properties
status	eop:status	EarthObservationMetadata/ eop:status	UMM-C Data Identification/Collection Progress UMM-G Coverage Description / AdditionalAttribute	Table 5: Properties object properties
statusDetail	eop:statusDetail	EarthObservationMetaData/ statusDetail	UMM-C Platform/Instrument/Characteristics ../Name ../Description ../DataType ../Unit ../Value	Table 20: ProductInformation object properties
statusSubType	eop:statusSubType	EarthObservationMetaData/ statusSubType	UMM-C Platform/Instrument/Characteristics ../Name ../Description ../DataType ../Unit ../Value	Table 20: ProductInformation object properties
swathIdentifier	eop:swathIdentifier	EarthObservationEquipment/ sensor/Sensor/swathIdentifier	None identified UMM-G Coverage Description / AdditionalAttribute	Table 18: AcquisitionParameters object properties
tileId	eop:tileId	N/A	UMM-G AdditionalAttribute/ TileID, geographicIdentifier	Table 18: AcquisitionParameters object properties
timeliness	eop:timeliness	product/ ProductInformation/timeliness	None identified UMM-G Coverage Description / AdditionalAttribute	Table 20: ProductInformation object properties
title	dct:title	E.g. EarthObservationMetadata/ identifier	UMM-G Data Identification / Producer Identifier Data Identification / Universal Reference Identifier	Table 7: Link object properties Table 9: Data Identification properties
type [NR5]	atom:type			Table 7: Link object properties
up	iana:up			Table 6: Links object properties
updated	dct:modified	EarthObservation/om:resultTime/ gml:TimeInstant/ gml:timePosition /eop:metaDataProperty/ eop:EarthObservationMetaData/ eop:modificationDate EarthObservationMetadata/ creationDate	Metadata Information / Metadata Date [R] (UPDATE)	Table 8: MetadataInformation properties
version	eop:version	product/ProductInformation/ version	UMM-G Local Version Identifier/LocalVersionId Or UMM-C Resource Citation / Version	Table 20: ProductInformation object properties
verticalResolution	eop:verticalResolution	atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:verticalResolution lmb:Acquisition/ lmb:verticalResolution	UMM-C Platform/Instrument/Characteristics/Unit	Table 18: AcquisitionParameters object properties
via [NR5]	iana:via	ssp:EarthObservationMetaData/ ssp:derivedFrom		Table 6: Links object properties
WavelengthInformation	eop:WavelengthInformation (Class)	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ WavelengthInformation	UMM-C Platform/Instrument/Characteristics ../Name	Table 17: WavelengthInformation object properties
wavelengthResolution	eop:wavelengthResolution	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation/ WavelengthInformation/ wavelengthResolution	UMM-C Platform/Instrument/Characteristics ../Name	Table 17: WavelengthInformation object properties
wavelengths	eop:wavelengths	/om:procedure/ eop:EarthObservationEquipment/ sensor/Sensor/wavelengthInformation	UMM-C Platform/Instrument/Characteristics ../Name	Table 18: AcquisitionParameters object properties
wrsLatitudeGrid	eop:wrsLatitudeGrid	/om:procedure/ eop:EarthObservationEquipment/ eop:acquisitionParameters/ eop:Acquisition/ eop:wrsLatitudeGrid	UMM-C Tiling Identification System TilingIdentificationSystem/Coordinate2 Also there are UMM-G AdditionalAttribute/ WRSPath geographicIdentifier	Table 18: AcquisitionParameters object properties
wrsLongitudeGrid	eop:wrsLongitudeGrid	/om:procedure/ eop:EarthObservationEquipment/ eop:acquisitionParameters/ eop:Acquisition/eop:wrsLongitudeGrid	UMM-C Tiling Identification System TilingIdentificationSystem/Coordinate1 UMM-G AdditionalAttribute/ WRSRow, geographicIdentifier	Table 18: AcquisitionParameters object properties
yaw	eop:yaw	acquisitionParameters/ Acquisition/yaw	None identified UMM-G Coverage Description / AdditionalAttribute	Table 19: AcquisitionAngles object properties
		EarthObservationMetadata/ vendorSpecific/SpecificInformation	Acquisition Information / Platform / Characteristics (UMM-Common )
		EarthObservationMetadata/ vendorSpecific/SpecificInformation	Acquisition Information / Platform / Instrument / Characteristics (UMM-Common)
			Acquisition Information / Platform / Instrument / LongName (UMM-Common)
			Acquisition Information / Platform / Instrument / Technique (UMM-Common)
			Acquisition Information / Platform / LongName (UMM-Common )
			Acquisition Information / Platform / Type (UMM-Common )
			Acquisition Information / Project
		EarthObservationMetadata/ vendorSpecific/SpecificInformation	Coverage Description / Day Night Flag
			Distribution Information / Related URL
			Spatial Information / Spatial Extent / OrbitParameters
			Spatial Information / Spatial Extent / Zone Identifier
		alt:Acquisition/alt:isSegment
		alt:Acquisition/alt:relativePassNumber
		alt:EarthObservationEquipment/ alt:auxiliaryInstrument
		alt:EarthObservationEquipment/ alt:auxiliaryInstrument/ alt:instrumentType
		alt:Footprint/alt:nominalTrack
		alt:ProcessingInformation/ alt:groundTrackUncertainty
		alt:ProcessingInformation/ alt:productContentsType
		archivedIn/ArchivingInformation/ archivingIdentifier
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:algorithmName
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:algorithmVersion
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:speciesError
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:species
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:unit
		atm:EarthObservationResult/ atm:dataLayers/ atm:DataLayer/ atm:verticalRange
		EarthObservationMetadata/ composedOf		Table 6: Links object properties atom:section (RFC5988)
		EarthObservationMetadata/ histograms
		EarthObservationMetadata/ linkedWith		Table 6: Links object properties atom:related (RFC5988)
		EarthObservationMetadata/ productGroupId
		EarthObservationMetadata/ subsetOf		Table 6: Links object properties atom:subsection (RFC5988)
		EarthObservationMetadata/Processing/ ProcessingInformation/ auxiliaryDataSetFileName
		EarthObservationResult/ opt:EarthObservationResult/ opt:cloudCoverPercentage AssessmentConfidence
		EarthObservationResult/ opt:EarthObservationResult/ opt:cloudCoverPercentage QuotationMode
		EarthObservationResult/coverage
		EarthObservationResult/parameter/ ParameterInformation/phenomenon
		EarthObservationResult/parameter/ ParameterInformation/unitOfMeasure
		lmb:Acquisition/ lmb:observationMode
		lmb:Footprint/ lmb:nominalTrack
		lmb:Footprint/ lmb:occultationPoints
		om:procedure/ EarthObservationEquipment/ instrument/Instrument/instrumentType
		opt:EarthObservationResult/ opt:snowCoverPercentage AssessmentConfidence
		opt:EarthObservationResult/ opt:snowCoverPercentage QuotationMode
		ssp:EarthObservationMetaData/ ssp: nominalDate
		ssp:Footprint/ gml:locationName

Annex D: Encoding Examples (Non-Normative)

Extracts of the following examples were used in the body of the document. The current Annex includes the complete examples in their original metadata format and in the proposed encodings.

The following tools were very useful to improve readability and check the examples.

D.1 Metadata Examples

D.1.1 Example 1: Seasat (Radar)

D.1.1.1 OGC 10-157r4


<?xml version="1.0" encoding="UTF-8"?>
<sar:EarthObservation xmlns:sar="http://www.opengis.net/sar/2.0" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:eop="http://www.opengis.net/eop/2.0" xmlns:om="http://www.opengis.net/om/2.0" xmlns:ows="http://www.opengis.net/ows/2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" gml:id="ID_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b" xsi:schemaLocation="http://www.opengis.net/sar/2.0 https://svn.opengeospatial.org/ogc-projects/cite/scripts/wcseo/1.0/tags/r1/resources/omeo/sar.xsd">
   <om:phenomenonTime>
      <gml:TimePeriod gml:id="tp_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
         <gml:beginPosition>1978-09-27T01:04:30Z</gml:beginPosition>
         <gml:endPosition>1978-09-27T01:04:45Z</gml:endPosition>
      </gml:TimePeriod>
   </om:phenomenonTime>
   <om:resultTime>
      <gml:TimeInstant gml:id="archivingdate_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
         <gml:timePosition>2014-10-04T04:19:17Z</gml:timePosition>
      </gml:TimeInstant>
   </om:resultTime>
   <om:procedure>
      <eop:EarthObservationEquipment gml:id="eoe_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
         <eop:platform>
           <eop:Platform>
              <eop:shortName>Seasat</eop:shortName>
              <eop:serialIdentifier>1</eop:serialIdentifier>
           </eop:Platform>
         </eop:platform>
         <eop:instrument>
           <eop:Instrument>
              <eop:shortName>SAR</eop:shortName>
           </eop:Instrument>
         </eop:instrument>
         <eop:sensor>
           <eop:Sensor>
              <eop:sensorType>RADAR</eop:sensorType>
              <eop:operationalMode>IM</eop:operationalMode>
           </eop:Sensor>
         </eop:sensor>
         <eop:acquisitionParameters>
           <sar:Acquisition>
              <eop:orbitNumber>1316</eop:orbitNumber>
              <eop:orbitDirection>DESCENDING</eop:orbitDirection>
              <sar:polarisationMode>S</sar:polarisationMode>
              <sar:polarisationChannels>HH</sar:polarisationChannels>
              <sar:antennaLookDirection>RIGHT</sar:antennaLookDirection>
              <sar:minimumIncidenceAngle uom="deg">19.6</sar:minimumIncidenceAngle>
              <sar:maximumIncidenceAngle uom="deg">9.6</sar:maximumIncidenceAngle>
              <sar:incidenceAngleVariation uom="deg">9.6</sar:incidenceAngleVariation>
           </sar:Acquisition>
         </eop:acquisitionParameters>
      </eop:EarthObservationEquipment>
   </om:procedure>
   <om:observedProperty nilReason="inapplicable"/>
   <om:featureOfInterest>
      <eop:Footprint gml:id="fp_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
         <eop:multiExtentOf>
           <gml:MultiSurface gml:id="ms_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b" srsName="EPSG:4326">
              <gml:surfaceMembers>
                 <gml:Polygon gml:id="fppoly_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
                    <gml:exterior>
                       <gml:LinearRing>
                          <gml:posList>63.261372 -2.682513 61.997604 -2.695740 61.965195 0.005087 63.227173 0.135472 63.261372 -2.682513</gml:posList>
                       </gml:LinearRing>
                    </gml:exterior>
                 </gml:Polygon>
              </gml:surfaceMembers>
           </gml:MultiSurface>
         </eop:multiExtentOf>
      </eop:Footprint>
   </om:featureOfInterest>
   <om:result>
      <eop:EarthObservationResult gml:id="eor_64dd0a6f-72bd-40c9-a8cd-10fe33c6516b">
         <eop:browse>
           <eop:BrowseInformation>
              <eop:type>QUICKLOOK</eop:type>
              <eop:referenceSystemIdentifier codeSpace="EPSG">epsg:4326</eop:referenceSystemIdentifier>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG">
                    <ows:RequestMessage/>
                 </ows:ServiceReference>
              </eop:fileName>
           </eop:BrowseInformation>
         </eop:browse>
         <eop:product>
           <eop:ProductInformation>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP">
                    <ows:RequestMessage xlmns="http://www.opengis.net/ows/2.0"/>
                 </ows:ServiceReference>
              </eop:fileName>
              <eop:version>1.0</eop:version>
              <eop:size uom="bytes">255211520</eop:size>
           </eop:ProductInformation>
         </eop:product>
      </eop:EarthObservationResult>
   </om:result>
   <eop:metaDataProperty>
      <eop:EarthObservationMetaData>
         <eop:identifier>SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F</eop:identifier>
         <eop:parentIdentifier>SEA_GEC_1P</eop:parentIdentifier>
         <eop:acquisitionType>NOMINAL</eop:acquisitionType>
         <eop:acquisitionSubType>DEFAULT</eop:acquisitionSubType>
         <eop:productType>SEA_GEC_1P</eop:productType>
         <eop:status>ARCHIVED</eop:status>
         <eop:processing>
           <eop:ProcessingInformation/>
         </eop:processing>
      </eop:EarthObservationMetaData>
   </eop:metaDataProperty>
</sar:EarthObservation>

D.1.1.2 GeoJSON


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "bbox": [
      -2.69574,
      61.965195,
      0.135472,
      63.261372
   ],
   "geometry": {
      "coordinates": [
         [
           [
              -2.682513,
              63.261372
           ],
           [
              -2.69574,
              61.997604
           ],
           [
              0.005087,
              61.965195
           ],
           [
              0.135472,
              63.227173
           ],
           [
              -2.682513,
              63.261372
           ]
         ]
      ],
      "type": "Polygon"
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "SEA_GEC_1P",
      "title": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
             "identifier": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "doi": "10.15489/mf87c2zjgo59",
      "date": "2016-07-02T18:13:41.34Z/2016-07-02T18:14:06.34Z",
      "updated": "2017-01-26T11:30:18Z",
      "links": {
         "data": [
           {
              "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
              "type": "application/binary",
              "title": "Download"
           }
         ],
         "previews": [
           {
              "href": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
              "type": "image/png",
              "title": "Quicklook",
              "category": "QUICKLOOK",
              "expression": "sample",
              "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
           }
         ],
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
              "type": "application/atom+xml",
              "title": "Atom format"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
              "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
              "platformShortName": "Seasat",
              "platformSerialIdentifier": "1"
           },
           "instrument": {
              "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
              "sensorType": "RADAR",
              "instrumentShortName": "SAR"
           },
           "acquisitionParameters": {
              "operationalMode": "IM",
              "polarisationMode": "S",
              "polarisationChannels": "HH",
              "beginningDateTime": "1978-09-27T01:04:30Z",
              "endingDateTime": "1978-09-27T01:04:45Z",
              "acquisitionType": "NOMINAL",
              "acquisitionSubType": "DEFAULT",
              "orbitNumber": 1316,
              "orbitDirection": "DESCENDING",
              "antennaLookDirection": "RIGHT",
              "acquisitionAngles": {
                 "minimumIncidenceAngle": 19.6,
                 "maximumIncidenceAngle": 9.6,
                 "incidenceAngleVariation": 9.6
              }
           }
         }
      ],
      "productInformation": {
         "productType": "SEA_GEC_1P",
         "size": 255211520,
         "availabilityTime": "1978-09-27T01:04:45Z"
      }
   }
}

D.1.1.3 JSON-LD (Compacted)


{
   "@context": "http://schemas.opengis.net/eo-geojson/1.0/eo-geojson.jsonld",
 
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "geometry": {
      "type": "Polygon",
      "coordinates": [
         [
           [
              -2.682513,
              63.261372
           ],
           [
              -2.69574,
              61.997604
           ],
           [
              0.005087,
              61.965195
           ],
           [
              0.135472,
              63.227173
           ],
           [
              -2.682513,
              63.261372
           ]
         ]
      ]
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "SEA_GEC_1P",
      "title": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "identifier": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "date": "1978-09-27T01:04:30Z/1978-09-27T01:04:45Z",
      "updated": "2017-04-11T13:36:16Z",
      "links": {
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "type": "application/atom+xml",
              "title": "Atom format"
            },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=om10",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0",
              "title": "O&M metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=om",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1",
              "title": "O&M 1.1 metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "type": "application/rdf+xml",
              "title": "RDF/XML format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "type": "application/ld+json",
              "title": "JSON-LD format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "type": "text/turtle",
              "title": "Turtle format"
           }
         ],
         "data": [
           {
              "href": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
              "type": "application/x-binary",
              "title": "Download"
           }
         ],
         "previews": [
           {
              "href": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
              "type": "image/png",
              "title": "Quicklook",
                                    "category": "QUICKLOOK",
              "expression": "sample",
              "conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326"
           }
         ],
         "up": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=SEA_GEC_1P&recordSchema=iso",
              "type": "application/atom+xml",
              "title": "Up"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
              "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
              "platform": "Seasat",
              "platformSerialIdentifier": "1"
           },
           "instrument": {
              "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
              "instrumentShortName": "SAR",
               "sensorType": "RADAR"
           },
           "acquisitionParameters": {
              "operationalMode": "IM",
              "polarisationMode": "S",
              "polarisationChannels": "HH",
              "beginningDateTime": "1978-09-27T01:04:30Z",
              "endingDateTime": "1978-09-27T01:04:45Z",
              "orbitDirection": "DESCENDING",
              "orbitNumber": 1316,
              "acquisitionType": "NOMINAL",
              "acquisitionSubType": "DEFAULT",
              "wrsLongitudeGrid": "0",
              "antennaLookDirection": "RIGHT",
              "acquisitionAngles": {
                 "minimumIncidenceAngle": 19.6,
                 "maximumIncidenceAngle": 29.2,
                 "incidenceAngleVariation": 9.6
              }
           }
         }
      ],
      "productInformation": {
         "productType": "SEA_GEC_1P",
         "size": 255211520,
         "availabilityTime": "2014-10-04T04:19:17Z",
         "referenceSystemIdentifier": "epsg:4326"
      }
   }
}

D.1.1.4 JSON-LD (Expanded)


{
   "@context": {
      "eop": "http://www.opengis.net/ont/eo-geojson/1.0/",
      "xsd": "http://www.w3.org/2001/XMLSchema#",
      "dct": "http://purl.org/dc/terms/",
      "atom": "http://www.w3.org/2005/Atom/",
      "iana": "http://www.iana.org/assignments/relation/",
      "owc": "http://www.opengis.net/ont/owc/1.0/",
      "gj": "https://purl.org/geojson/vocab#",
      "gsp": "http://www.opengis.net/ont/geosparql#",
      "ical": "http://www.w3.org/2002/12/cal/ical#",
      "media": "http://search.yahoo.com/mrss/"
   },
   "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
   "@type": [
      "gj:Feature",
      "gsp:Feature",
      "eop:EarthObservation"
   ],
   "gj:bbox": {
      "@list": [
         -2.69574,
         61.965195,
         0.135472,
         63.261372
      ]
   },
   "gsp:hasGeometry": {
      "gsp:asWKT": "Polygon((-2.682513, 63.261372, -2.695740, 61.997604, 0.005087, 61.965195, 0.135472, 63.227173, -2.682513, 63.261372))",
      "@type": "gsp:Geometry"
   },
   "gj:geometry": {
      "@type": "gj:Polygon",
      "gj:coordinates": [
         -2.682513,
         63.261372,
         -2.69574,
         61.997604,
         0.005087,
         61.965195,
         0.135472,
         63.227173,
         -2.682513,
         63.261372
      ]
   },
   "gj:properties": {
      "@type": "gj:Properties",
      "dct:date": "1978-09-27T01:04:30Z/1978-09-27T01:04:45Z",
      "dct:modified": "2017-04-11T13:36:16Z",
      "dct:title": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "dct:identifier": "SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F",
      "eop:acquisitionInformation": {
         "@type": "eop:AcquisitionInformation",
         "eop:acquisitionParameters": {
           "@type": "eop:AcquisitionParameters",
           "eop:operationalMode": "IM",
           "eop:polarisationChannels": {
              "@id": "eop:PolarisationChannels/HH"
           },
           "eop:polarisationMode": {
              "@id": "eop:PolarisationMode/S"
           },
           "eop:acquisitionAngles": {
              "@type": "eop:AcquisitionAngles",
              "eop:incidenceAngleVariation": 9.6,
              "eop:maximumIncidenceAngle": 29.2,
              "eop:minimumIncidenceAngle": 19.6
           },
           "eop:acquisitionSubType": "DEFAULT",
           "eop:acquisitionType": {
              "@id": "eop:AcquisitionType/NOMINAL"
           },
           "eop:antennaLookDirection": {
              "@id": "eop:RIGHT"
           },
           "eop:orbitDirection": {
              "@id": "eop:DESCENDING"
           },
           "eop:orbitNumber": 1316,
           "eop:wrsLongitudeGrid": "0",
           "ical:dtend": "1978-09-27T01:04:45Z",
           "ical:dtstart": "1978-09-27T01:04:30Z"
         },
         "eop:instrument": {
           "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a37282d4-322c-4dd0-8edc-36099b9b586c",
           "@type": "eop:Instrument",
           "eop:instrumentShortName": "SAR",
           "eop:sensorType": {
              "@id": "eop:RADAR"
           }
         },
         "eop:platform": {
           "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/1bffe898-f4a2-458e-92c5-cd7c9c1cd5f0",
           "@type": "eop:Platform",
           "eop:platform": "Seasat",
           "eop:platformSerialIdentifier": "1"
         }
      },
      "eop:parentIdentifier": "SEA_GEC_1P",
      "eop:productInformation": {
         "@type": "eop:ProductInformation",
         "eop:availabilityTime": "2014-10-04T04:19:17Z",
         "eop:productType": "SEA_GEC_1P",
         "eop:referenceSystemIdentifier": "http://www.opengis.net.def/crs/EPSG/0/4326",
         "eop:size": 255211520
      },
      "eop:status": {
         "@id": "eop:ARCHIVED"
      },
      "owc:links": {
         "@type": "owc:Links",
         "iana:alternate": [
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Atom format",
              "atom:type": "application/atom+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=om10",
              "@type": "atom:link",
              "dct:title": "O&M metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=om",
              "@type": "atom:link",
              "dct:title": "O&M 1.1 metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "RDF/XML format",
              "atom:type": "application/rdf+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "JSON-LD format",
              "atom:type": "application/ld+json"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:OADS:SEA_GEC_1P&uid=SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Turtle format",
              "atom:type": "text/turtle"
           }
         ],
         "iana:enclosure": {
           "@id": "http://tpm-ds.eo.esa.int/products/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.ZIP",
           "@type": "atom:link",
           "dct:title": "Download",
           "atom:type": "application/x-binary"
         },
         "iana:icon": {
           "@id": "http://tpm-ds.eo.esa.int/metadata/SEA_GEC_1P/1978/09/27/SE1_OPER_SEA_GEC_1P_19780927T010430_19780927T010445_001316_0000_2267_9B4F.BI.PNG",
           "@type": "atom:link",
           "dct:title": "Quicklook",
           "atom:type": "image/png",
           "dct:conformsTo": "http://www.opengis.net.def/crs/EPSG/0/4326",
           "media:category": {
              "@id": "eop:QUICKLOOK",
              "@type": "media:Category"
           },
           "media:expression": "sample"
         },
         "iana:up": {
           "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=SEA_GEC_1P&recordSchema=iso",
           "@type": "atom:link",
           "dct:title": "Up",
           "atom:type": "application/atom+xml"
         }
      }
   }
}

D.1.2 Example 2: Landsat (Optical)

D.1.2.1 OGC 10-157r4


<?xml version="1.0" encoding="UTF-8"?>
<opt:EarthObservation xmlns:opt="http://www.opengis.net/opt/2.1" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:alt="http://www.opengis.net/alt/2.1" xmlns:atm="http://www.opengis.net/atm/2.1" xmlns:eop="http://www.opengis.net/eop/2.1" xmlns:lmb="http://www.opengis.net/lmb/2.1" xmlns:om="http://www.opengis.net/om/2.0" xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:ows="http://www.opengis.net/ows/2.0" xmlns:sar="http://www.opengis.net/sar/2.1" xmlns:ssp="http://www.opengis.net/ssp/2.1" xmlns:stl="http://pisa.intecs.it/stl" xmlns:swe="http://www.opengis.net/swe/1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" gml:id="ID_73e3e096-6446-4bc1-bc0e-12528b96d85a">
   <om:phenomenonTime>
      <gml:TimePeriod gml:id="tp_73e3e096-6446-4bc1-bc0e-12528b96d85a">
         <gml:beginPosition>2000-01-07T11:12:29Z</gml:beginPosition>
         <gml:endPosition>2000-01-07T11:12:58Z</gml:endPosition>
      </gml:TimePeriod>
   </om:phenomenonTime>
   <om:resultTime>
      <gml:TimeInstant gml:id="archivingdate_73e3e096-6446-4bc1-bc0e-12528b96d85a">
         <gml:timePosition>2000-01-07T11:12:58Z</gml:timePosition>
      </gml:TimeInstant>
   </om:resultTime>
   <om:procedure>
      <eop:EarthObservationEquipment gml:id="eoe_73e3e096-6446-4bc1-bc0e-12528b96d85a">
         <eop:platform>
           <eop:Platform>
              <eop:shortName>Landsat</eop:shortName>
              <eop:serialIdentifier>7</eop:serialIdentifier>
           </eop:Platform>
         </eop:platform>
         <eop:instrument>
           <eop:Instrument>
              <eop:shortName>ETM</eop:shortName>
           </eop:Instrument>
         </eop:instrument>
         <eop:sensor>
           <eop:Sensor>
              <eop:sensorType>OPTICAL</eop:sensorType>
              <eop:operationalMode codeSpace="urn:eop:PHR:sensorMode">IM</eop:operationalMode>
           </eop:Sensor>
         </eop:sensor>
         <eop:acquisitionParameters>
           <eop:Acquisition>
              <eop:orbitNumber>3886</eop:orbitNumber>
              <eop:orbitDirection>DESCENDING</eop:orbitDirection>
              <eop:wrsLongitudeGrid codeSpace="EPSG">205</eop:wrsLongitudeGrid>
              <eop:wrsLatitudeGrid codeSpace="EPSG">31</eop:wrsLatitudeGrid>
              <eop:illuminationAzimuthAngle uom="deg">157.128</eop:illuminationAzimuthAngle>
              <eop:illuminationZenithAngle uom="deg">67.5922</eop:illuminationZenithAngle>
              <eop:illuminationElevationAngle uom="deg">22.4078</eop:illuminationElevationAngle>
           </eop:Acquisition>
         </eop:acquisitionParameters>
      </eop:EarthObservationEquipment>
   </om:procedure>
   <om:observedProperty nilReason="inapplicable"/>
   <om:featureOfInterest>
      <eop:Footprint gml:id="fp_73e3e096-6446-4bc1-bc0e-12528b96d85a">
         <eop:multiExtentOf>
           <gml:MultiSurface gml:id="ms_73e3e096-6446-4bc1-bc0e-12528b96d85a" srsName="EPSG:4326">
              <gml:surfaceMembers>
                 <gml:Polygon gml:id="fppoly_73e3e096-6446-4bc1-bc0e-12528b96d85a">
                    <gml:exterior>
                       <gml:LinearRing>
                          <gml:posList>42.7054 -10.9168 42.7186 -8.19013 40.7994 -8.21391 40.7871 -10.8605 42.7054 -10.9168</gml:posList>
                       </gml:LinearRing>
                    </gml:exterior>
                 </gml:Polygon>
              </gml:surfaceMembers>
           </gml:MultiSurface>
         </eop:multiExtentOf>
      </eop:Footprint>
   </om:featureOfInterest>
   <om:result>
      <opt:EarthObservationResult gml:id="eor_73e3e096-6446-4bc1-bc0e-12528b96d85a">
         <eop:browse>
           <eop:BrowseInformation>
              <eop:type>QUICKLOOK</eop:type>
              <eop:referenceSystemIdentifier codeSpace="EPSG">epsg:4326</eop:referenceSystemIdentifier>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="http://landsat-ds.eo.esa.int/metadata/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.BP.PNG">
                    <ows:RequestMessage/>
                 </ows:ServiceReference>
              </eop:fileName>
           </eop:BrowseInformation>
         </eop:browse>
         <eop:browse>
           <eop:BrowseInformation>
              <eop:type>THUMBNAIL</eop:type>
              <eop:referenceSystemIdentifier codeSpace="EPSG">epsg:4326</eop:referenceSystemIdentifier>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="http://landsat-ds.eo.esa.int/metadata/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.JPG">
                    <ows:RequestMessage/>
                 </ows:ServiceReference>
              </eop:fileName>
            </eop:BrowseInformation>
         </eop:browse>
         <eop:product>
           <eop:ProductInformation>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="http://landsat-ds.eo.esa.int/products/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.ZIP">
                    <ows:RequestMessage/>
                 </ows:ServiceReference>
              </eop:fileName>
              <eop:version>1.0</eop:version>
              <eop:size uom="kb">165773162</eop:size>
           </eop:ProductInformation>
         </eop:product>
         <opt:cloudCoverPercentage uom="%">0</opt:cloudCoverPercentage>
      </opt:EarthObservationResult>
   </om:result>
   <eop:metaDataProperty>
      <eop:EarthObservationMetaData>
         <eop:identifier>LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261</eop:identifier>
         <eop:parentIdentifier>LANDSAT.ETM.GTC</eop:parentIdentifier>
         <eop:acquisitionType>NOMINAL</eop:acquisitionType>
         <eop:acquisitionSubType>DEFAULT</eop:acquisitionSubType>
         <eop:productType>ETM_GTC_1P</eop:productType>
         <eop:status>ARCHIVED</eop:status>
         <eop:productQualityDegradation uom="%">0</eop:productQualityDegradation>
         <eop:processing>
           <eop:ProcessingInformation>
              <eop:processingMode>NOMINAL</eop:processingMode>
           </eop:ProcessingInformation>
         </eop:processing>
      </eop:EarthObservationMetaData>
   </eop:metaDataProperty>
</opt:EarthObservation>

D.1.2.2 GeoJSON


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
   "bbox" : [ -10.9168, 40.7871, -8.19013, 42.7186 ],
   "geometry": {
      "type": "Polygon",
      "coordinates": [
         [
           [
              -10.9168,
              42.7054
           ],
           [
              -10.8605,
              40.7871
           ],
           [
              -8.21391,
              40.7994
           ],
           [
              -8.19013,
              42.7186
           ],
           [
              -10.9168,
              42.7054
           ]
         ]
      ]
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "LANDSAT.ETM.GTC",
      "title": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
      "identifier": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
      "date": "2000-01-07T11:12:29Z/2000-01-07T11:12:58Z",
      "updated": "2017-04-11T11:21:45Z",
      "links": {
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/atom+xml",
              "title": "Atom format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om10",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0",
              "title": "O&M metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1",
              "title": "O&M 1.1 metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/rdf+xml",
              "title": "RDF/XML format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/ld+json",
              "title": "JSON-LD format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "text/turtle",
              "title": "Turtle format"
           }
         ],
         "data": [
           {
              "href": "http://landsat-ds.eo.esa.int/products/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.ZIP",
              "type": "application/x-binary",
              "title": "Download"
           }
         ],
         "previews": [
           {
              "href": "http://landsat-ds.eo.esa.int/metadata/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.BP.PNG",
              "type": "image/png",
              "title": "Quicklook"
           }
         ],
         "up": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=LANDSAT.ETM.GTC&recordSchema=iso",
              "type": "application/atom+xml",
              "title": "Up"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/c7a09e9f-3c99-4b31-a521-313c379ba2b4",
              "platform": "Landsat",
              "platformSerialIdentifier": "7"
           },
           "instrument": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/4dbe7764-a2ea-4a19-b754-696c35ac3205",
              "instrumentShortName": "ETM",
               "sensorType": "OPTICAL"
           },
           "acquisitionParameters": {
              "operationalMode": "IM",
 
              "beginningDateTime": "2000-01-07T11:12:29Z",
              "endingDateTime": "2000-01-07T11:12:58Z",
              "orbitDirection": "DESCENDING",
              "orbitNumber": 3886,
              "acquisitionType": "NOMINAL",
              "acquisitionSubType": "DEFAULT",
              "wrsLongitudeGrid": "205",
              "wrsLatitudeGrid": "31"
           }
         }
      ],
      "productInformation": {
         "productType": "ETM_GTC_1P",
         "size": 165773162,
         "availabilityTime": "2000-01-07T11:12:58Z",
         "referenceSystemIdentifier": "epsg:4326",
         "cloudCover": 0
      }
   }
}

D.1.2.3 JSON-LD (Compacted)


{
   "@context": "http://schemas.opengis.net/eo-geojson/1.0/eo-geojson.jsonld",
 
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
   "geometry": {
      "type": "Polygon",
      "coordinates": [
         [
           [
              -10.9168,
              42.7054
           ],
           [
              -10.8605,
              40.7871
           ],
           [
              -8.21391,
              40.7994
           ],
           [
              -8.19013,
              42.7186
           ],
           [
              -10.9168,
              42.7054
           ]
         ]
      ]
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "LANDSAT.ETM.GTC",
      "title": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
      "identifier": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
 
      "date": "2000-01-07T11:12:29Z/2000-01-07T11:12:58Z",
      "updated": "2017-04-11T11:21:45Z",
      "links": {
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/atom+xml",
              "title": "Atom format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om10",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0",
              "title": "O&M metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1",
              "title": "O&M 1.1 metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/rdf+xml",
              "title": "RDF/XML format"
           },
            {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "application/ld+json",
              "title": "JSON-LD format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "type": "text/turtle",
              "title": "Turtle format"
           }
         ],
         "data": [
           {
              "href": "http://landsat-ds.eo.esa.int/products/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.ZIP",
              "type": "application/x-binary",
              "title": "Download"
           }
         ],
         "previews": [
           {
              "href": "http://landsat-ds.eo.esa.int/metadata/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.BP.PNG",
              "type": "image/png",
              "title": "Quicklook"
           }
         ],
         "up": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=LANDSAT.ETM.GTC&recordSchema=iso",
              "type": "application/atom+xml",
              "title": "Up"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/c7a09e9f-3c99-4b31-a521-313c379ba2b4",
              "platformShortName": "Landsat",
              "platformSerialIdentifier": "7"
           },
           "instrument": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/4dbe7764-a2ea-4a19-b754-696c35ac3205",
              "instrumentShortName": "ETM",
               "sensorType": "OPTICAL"
           },
           "acquisitionParameters": {
              "operationalMode": "IM",
              "beginningDateTime": "2000-01-07T11:12:29Z",
              "endingDateTime": "2000-01-07T11:12:58Z",
              "orbitDirection": "DESCENDING",
              "orbitNumber": 3886,
              "acquisitionType": "NOMINAL",
              "acquisitionSubType": "DEFAULT",
              "wrsLongitudeGrid": "205",
              "wrsLatitudeGrid": "31"
           }
         }
      ],
      "productInformation": {
         "productType": "ETM_GTC_1P",
         "size": 165773162,
         "availabilityTime": "2000-01-07T11:12:58Z",
         "referenceSystemIdentifier": "epsg:4326",
         "cloudCover": 0
      }
   }
}

D.1.2.4 JSON-LD (Expanded)


{
   "@context": {
      "eop": "http://www.opengis.net/ont/eo-geojson/1.0/",
      "xsd": "http://www.w3.org/2001/XMLSchema#",
      "dct": "http://purl.org/dc/terms/",
      "atom": "http://www.w3.org/2005/Atom/",
      "iana": "http://www.iana.org/assignments/relation/",
      "owc": "http://www.opengis.net/ont/owc/1.0/",
      "gj": "https://purl.org/geojson/vocab#",
      "gsp": "http://www.opengis.net/ont/geosparql#",
      "ical": "http://www.w3.org/2002/12/cal/ical#",
      "media": "http://search.yahoo.com/mrss/"
   },
   "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
   "@type": [
      "gj:Feature",
      "eop:EarthObservation"
   ],
   "gj:geometry": {
      "@type": "gj:Polygon",
      "gj:coordinates": [
         -8.19013,
         42.7186,
         -8.21391,
         40.7994,
         -10.8605,
         40.7871,
         -10.9168,
         42.7054,
         -10.9168,
         42.7054
      ]
   },
   "gj:properties": {
      "@type": "gj:Properties",
      "dct:date": "2000-01-07T11:12:29Z/2000-01-07T11:12:58Z",
      "dct:modified": "2017-04-11T11:21:45Z",
      "dct:title": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
      "dct:identifier": "LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261",
      "eop:acquisitionInformation": {
         "@type": "eop:AcquisitionInformation",
         "eop:acquisitionParameters": {
           "eop:operationalMode": "IM",
 
           "@type": "eop:AcquisitionParameters",
           "eop:acquisitionSubType": "DEFAULT",
           "eop:acquisitionType": {
              "@id": "eop:AcquisitionType/NOMINAL"
           },
           "eop:wrsLatitudeGrid": "31",
           "eop:orbitDirection": {
              "@id": "eop:DESCENDING"
           },
           "eop:orbitNumber": 3886,
           "eop:wrsLongitudeGrid": "205",
           "ical:dtend": "2000-01-07T11:12:58Z",
           "ical:dtstart": "2000-01-07T11:12:29Z"
         },
         "eop:instrument": {
           "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/4dbe7764-a2ea-4a19-b754-696c35ac3205",
           "@type": "eop:Instrument",
           "eop:instrumentShortName": "ETM",
           "eop:sensorType": {
              "@id": "eop:OPTICAL"
           }
         },
         "eop:platform": {
           "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/c7a09e9f-3c99-4b31-a521-313c379ba2b4",
           "@type": "eop:Platform",
           "eop:platform": "Landsat",
           "eop:platformSerialIdentifier": "7"
         }
      },
      "eop:parentIdentifier": "LANDSAT.ETM.GTC",
      "eop:productInformation": {
         "@type": "eop:ProductInformation",
         "eop:availabilityTime": "2000-01-07T11:12:58Z",
         "eop:productType": "ETM_GTC_1P",
         "eop:referenceSystemIdentifier": "http://www.opengis.net.def/crs/EPSG/0/4326",
         "eop:size": 165773162,
         "eop:cloudCover": 0
      },
      "eop:status": {
         "@id": "eop:ARCHIVED"
      },
      "owc:links": {
         "@type": "owc:Links",
         "iana:alternate": [
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Atom format",
              "atom:type": "application/atom+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om10",
              "@type": "atom:link",
              "dct:title": "O&M metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=om",
              "@type": "atom:link",
              "dct:title": "O&M 1.1 metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "RDF/XML format",
              "atom:type": "application/rdf+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "JSON-LD format",
              "atom:type": "application/ld+json"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:OADS:LANDSAT.ETM.GTC&uid=LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Turtle format",
              "atom:type": "text/turtle"
           }
         ],
         "iana:enclosure": {
           "@id": "http://landsat-ds.eo.esa.int/products/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.ZIP",
           "@type": "atom:link",
           "dct:title": "Download",
           "atom:type": "application/x-binary"
         },
         "iana:icon": {
           "@id": "http://landsat-ds.eo.esa.int/metadata/LANDSAT_ETM/2000/01/07/LS07_RMPS_ETM_GTC_1P_20000107T111229_20000107T111258_003886_0205_0031_9261.BP.PNG",
           "@type": "atom:link",
           "dct:title": "Quicklook",
           "atom:type": "image/png",
           "media:category": {
              "@id": "eop:QUICKLOOK",
              "@type": "media:Category"
           }
         },
         "iana:up": {
           "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=LANDSAT.ETM.GTC&recordSchema=iso",
           "@type": "atom:link",
           "dct:title": "Up",
           "atom:type": "application/atom+xml"
         }
      }
   }
}

D.1.3 Example 3: Cryosat-2 (Altimetric)

D.1.3.1 OGC 10-157r4


 <?xml version="1.0" encoding="UTF-8"?>
<alt:EarthObservation xmlns:alt="http://www.opengis.net/alt/2.1"
 xmlns:gml="http://www.opengis.net/gml/3.2"
 xmlns:atom="http://www.w3.org/2005/Atom"
 xmlns:dc="http://purl.org/dc/elements/1.1/"
 xmlns:eo="http://a9.com/-/opensearch/extensions/eo/1.0/"
 xmlns:eop="http://www.opengis.net/eop/2.1"
 xmlns:fo="http://www.w3.org/1999/XSL/Format"
 xmlns:geo="http://a9.com/-/opensearch/extensions/geo/1.0/"
 xmlns:georss="http://www.georss.org/georss"
 xmlns:om="http://www.opengis.net/om/2.0"
 xmlns:os="http://a9.com/-/spec/opensearch/1.1/"
 xmlns:ows="http://www.opengis.net/ows/2.0"
 xmlns:semantic="http://a9.com/-/opensearch/extensions/semantic/1.0/"
 xmlns:sru="http://a9.com/-/opensearch/extensions/sru/2.0/"
 xmlns:swe="http://www.opengis.net/swe/1.0"
 xmlns:time="http://a9.com/-/opensearch/extensions/time/1.0/"
 xmlns:xlink="http://www.w3.org/1999/xlink"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_1">
   <om:phenomenonTime>
      <gml:TimePeriod gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_2">
         <gml:beginPosition>2010-07-22T12:05:23Z</gml:beginPosition>
         <gml:endPosition>2010-07-22T13:44:36Z</gml:endPosition>
      </gml:TimePeriod>
   </om:phenomenonTime>
   <om:resultTime>
      <gml:TimeInstant gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_3">
         <gml:timePosition>2016-03-09T16:39:40Z</gml:timePosition>
      </gml:TimeInstant>
   </om:resultTime>
   <om:procedure>
      <alt:EarthObservationEquipment gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_4">
         <eop:platform>
           <eop:Platform>
              <eop:shortName>Cryosat</eop:shortName>
              <eop:serialIdentifier>2</eop:serialIdentifier>
           </eop:Platform>
         </eop:platform>
         <eop:instrument>
           <eop:Instrument>
              <eop:shortName>SIRAL</eop:shortName>
           </eop:Instrument>
         </eop:instrument>
         <eop:sensor>
           <eop:Sensor>
              <eop:sensorType>ALTIMETRIC</eop:sensorType>
              <eop:operationalMode/>
           </eop:Sensor>
         </eop:sensor>
         <eop:acquisitionParameters>
           <alt:Acquisition>
              <eop:orbitNumber>001523</eop:orbitNumber>
              <eop:lastOrbitNumber>001523</eop:lastOrbitNumber>
              <eop:orbitDirection>ASCENDING</eop:orbitDirection>
              <eop:ascendingNodeDate>2010-07-22T12:04:49Z</eop:ascendingNodeDate>
              <eop:ascendingNodeLongitude uom="deg">-169.101978</eop:ascendingNodeLongitude>
              <eop:startTimeFromAscendingNode uom="ms">0000.761548</eop:startTimeFromAscendingNode>
              <eop:completionTimeFromAscendingNode uom="ms">5953.440918</eop:completionTimeFromAscendingNode>
           </alt:Acquisition>
         </eop:acquisitionParameters>
      </alt:EarthObservationEquipment>
   </om:procedure>
   <om:observedProperty nilReason="inapplicable" xsi:nil="true"/>
   <om:featureOfInterest>
      <alt:Footprint gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_5">
         <eop:multiExtentOf/>
         <alt:nominalTrack>
           <gml:MultiCurve gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_6">
              <gml:curveMember>
                 <gml:LineString gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_7" srsName="EPSG:4326">
                    <gml:posList>0.046332 -169.106794 -0.004573 166.040236</gml:posList>
                 </gml:LineString>
              </gml:curveMember>
           </gml:MultiCurve>
         </alt:nominalTrack>
      </alt:Footprint>
   </om:featureOfInterest>
   <om:result>
      <eop:EarthObservationResult gml:id="CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001_8">
         <eop:product>
           <eop:ProductInformation>
              <eop:fileName>
                 <ows:ServiceReference xlink:href="ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.DBL">
                    <ows:RequestMessage xlmns="http://www.opengis.net/ows/2.0"/>
                 </ows:ServiceReference>
              </eop:fileName>
              <eop:version>C001</eop:version>
              <eop:size uom="bytes">000000000000008612306</eop:size>
           </eop:ProductInformation>
         </eop:product>
      </eop:EarthObservationResult>
   </om:result>
   <eop:metaDataProperty>
      <eop:EarthObservationMetaData>
         <eop:identifier>CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001</eop:identifier>
         <eop:parentIdentifier>CR2_SIR</eop:parentIdentifier>
         <eop:acquisitionType>NOMINAL</eop:acquisitionType>
         <eop:productType>SIR_GDR_2_</eop:productType>
         <eop:status>ARCHIVED</eop:status>
         <eop:downlinkedTo>
           <eop:DownlinkInformation>
              <eop:acquisitionStation>KS</eop:acquisitionStation>
           </eop:DownlinkInformation>
         </eop:downlinkedTo>
         <eop:productQualityDegradationQuotationMode>AUTOMATIC</eop:productQualityDegradationQuotationMode>
         <eop:productQualityStatus>DEGRADED</eop:productQualityStatus>
         <eop:productQualityReportURL>CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.QR.XML</eop:productQualityReportURL>
         <eop:processing>
           <alt:ProcessingInformation>
              <eop:processingCenter>PDS</eop:processingCenter>
              <eop:processingDate>2016-03-09T16:39:40Z</eop:processingDate>
              <eop:processorVersion>3.1</eop:processorVersion>
              <eop:shortName>2</eop:shortName>
           </alt:ProcessingInformation>
         </eop:processing>
         <eop:vendorSpecific>
           <eop:SpecificInformation>
              <eop:localAttribute>missionPhase</eop:localAttribute>
               <eop:localValue>1</eop:localValue>
           </eop:SpecificInformation>
         </eop:vendorSpecific>
      </eop:EarthObservationMetaData>
   </eop:metaDataProperty>
</alt:EarthObservation>

D.1.3.2 GeoJSON


{
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR
          &uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
   "bbox": [
      -0.004573,
      -169.106794,
      0.046332,
      166.040236
   ],
   "geometry": {
      "type": "LineString",
      "coordinates": [
         [
           -169.106794,
           0.046332
         ],
         [
           166.040236,
           -0.004573
         ]
      ]
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "CR2_SIR",
      "title": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "identifier": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "date": "2010-07-22T12:05:23Z/2010-07-22T13:44:36Z",
      "updated": "2017-04-11T14:37:41Z",
      "links": {
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/atom+xml",
              "title": "Atom format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om10",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0",
              "title": "O&M metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1",
              "title": "O&M 1.1 metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/rdf+xml",
              "title": "RDF/XML format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/ld+json",
              "title": "JSON-LD format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "text/turtle",
              "title": "Turtle format"
           }
         ],
         "data": [
           {
              "href": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.DBL",
              "type": "application/x-binary",
              "title": "Download"
           }
         ],
         "via": [
           {
              "href": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.HDR",
              "type": "application/xml",
              "title": "Via"
           }
         ],
         "up": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=CR2_SIR&recordSchema=iso",
              "type": "application/atom+xml",
              "title": "Up"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a915ab2f-46c5-493b-9f18-aeb3383ee72b",
              "platformShortName": "Cryosat",
              "platformSerialIdentifier": "2"
           },
           "instrument": {
               "id": "https://gcmdservices.gsfc.nasa.gov/kms/concept/30787b9f-a407-47a5-b69b-5b9e1d1b1144",
              "instrumentShortName": "SIRAL",
              "sensorType": "ALTIMETRIC"
           },
           "acquisitionParameters": {
              "operationalMode": "",
              "beginningDateTime": "2010-07-22T12:05:23Z",
              "endingDateTime": "2010-07-22T13:44:36Z",
              "orbitDirection": "ASCENDING",
              "orbitNumber": 1523,
              "lastOrbitNumber": 1523,
              "ascendingNodeDate": "2010-07-22T12:04:49Z",
              "ascendingNodeLongitude": -169.101978,
              "acquisitionType": "NOMINAL",
              "startTimeFromAscendingNode": 761,
              "completionTimeFromAscendingNode": 5953440,
              "acquisitionStation": "KS"
           }
         }
      ],
      "productInformation": {
         "productType": "SIR_GDR_2_",
         "size": 8612306,
         "availabilityTime": "2016-03-09T16:39:40Z",
         "version": "C001",
         "processingCenter": "PDS",
         "processingDate": "2016-03-09T16:39:40Z",
         "processorVersion": "3.1",
         "qualityInformation": {
           "qualityStatus": "DEGRADED"
         }
      }
   }
}

D.1.3.3 JSON-LD (Compacted)


{
 
   "@context": "http://schemas.opengis.net/eo-geojson/1.0/eo-geojson.jsonld",
  
   "type": "Feature",
   "id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
   "bbox": [
      -0.004573,
      -169.106794,
      0.046332,
      166.040236
   ],
   "geometry": {
      "type": "LineString",
      "coordinates": [
         [
           -169.106794,
           0.046332
         ],
         [
           166.040236,
           -0.004573
         ]
      ]
   },
   "properties": {
      "status": "ARCHIVED",
      "parentIdentifier": "CR2_SIR",
      "title": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "identifier": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "date": "2010-07-22T12:05:23Z/2010-07-22T13:44:36Z",
      "updated": "2017-04-11T14:37:41Z",
      "links": {
         "alternates": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/atom+xml",
              "title": "Atom format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om10",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0",
              "title": "O&M metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om",
              "type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1",
              "title": "O&M 1.1 metadata"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/rdf+xml",
              "title": "RDF/XML format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "application/ld+json",
              "title": "JSON-LD format"
           },
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "type": "text/turtle",
              "title": "Turtle format"
           }
         ],
         "data": [
           {
              "href": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.DBL",
              "type": "application/x-binary",
              "title": "Download"
           }
         ],
         "via": [
           {
              "href": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.HDR",
              "type": "application/xml",
              "title": "Via"
           }
         ],
         "up": [
           {
              "href": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=CR2_SIR&recordSchema=iso",
              "type": "application/atom+xml",
              "title": "Up"
           }
         ]
      },
      "acquisitionInformation": [
         {
           "platform": {
               "id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a915ab2f-46c5-493b-9f18-aeb3383ee72b",
              "platformShortName": "Cryosat",
              "platformSerialIdentifier": "2"
           },
           "instrument": {
               "id": "https://gcmdservices.gsfc.nasa.gov/kms/concept/30787b9f-a407-47a5-b69b-5b9e1d1b1144",
              "instrumentShortName": "SIRAL",
              "sensorType": "ALTIMETRIC"
           },
           "acquisitionParameters": {
              "operationalMode": "",
              "beginningDateTime": "2010-07-22T12:05:23Z",
              "endingDateTime": "2010-07-22T13:44:36Z",
              "orbitDirection": "ASCENDING",
              "orbitNumber": 1523,
              "lastOrbitNumber": 1523,
              "ascendingNodeDate": "2010-07-22T12:04:49Z",
              "ascendingNodeLongitude": -169.101978,
              "acquisitionType": "NOMINAL",
              "startTimeFromAscendingNode": 761548,
              "completionTimeFromAscendingNode": 5953,
              "acquisitionStation": "KS"
           }
         }
      ],
      "productInformation": {
         "productType": "SIR_GDR_2_",
         "size": 8612306,
         "availabilityTime": "2016-03-09T16:39:40Z",
         "version": "C001",
         "processingCenter": "PDS",
         "processingDate": "2016-03-09T16:39:40Z",
         "processorVersion": "3.1",
         "qualityInformation": {
           "qualityStatus": "DEGRADED"
         }
      }
   }
}

D.1.3.4 JSON-LD (Expanded)


{
   "@context": {
      "eop": "http://www.opengis.net/ont/eo-geojson/1.0/",
      "xsd": "http://www.w3.org/2001/XMLSchema#",
      "dct": "http://purl.org/dc/terms/",
      "atom": "http://www.w3.org/2005/Atom/",
      "iana": "http://www.iana.org/assignments/relation/",
      "owc": "http://www.opengis.net/ont/owc/1.0/",
      "gj": "https://purl.org/geojson/vocab#",
      "gsp": "http://www.opengis.net/ont/geosparql#",
      "ical": "http://www.w3.org/2002/12/cal/ical#",
      "media": "http://search.yahoo.com/mrss/"
   },
   "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/geo%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
   "@type": [
      "gj:Feature",
      "eop:EarthObservation"
   ],
   "gj:bbox": {
      "@list": [
         -0.004573,
         -169.106794,
         0.046332,
         166.040236
      ]
   },
   "gj:geometry": {
      "@type": "gj:LineString",
      "gj:coordinates": [
         -169.106794,
         0.046332,
         166.040236,
         -0.004573
      ]
   },
   "gj:properties": {
      "@type": "gj:Properties",
      "dct:date": "2010-07-22T12:05:23Z/2010-07-22T13:44:36Z",
      "dct:modified": "2017-04-11T14:37:41Z",
      "dct:title": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "dct:identifier": "CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001",
      "eop:acquisitionInformation": {
         "@type": "eop:AcquisitionInformation",
         "eop:acquisitionParameters": {
           "@type": "eop:AcquisitionParameters",
           "eop:operationalMode": "",
           "eop:acquisitionStation": "KS",
           "acquisitionType": {
              "@id": "eop:AcquisitionType/NOMINAL"
           },
           "eop:ascendingNodeDate": "2010-07-22T12:04:49Z",
           "eop:ascendingNodeLongitude": -169.101978,
           "eop:completionTimeFromAscendingNode": "5953.440918",
           "eop:lastOrbitNumber": 1523,
           "eop:orbitDirection": {
              "@id": "eop:ASCENDING"
           },
           "eop:orbitNumber": 1523,
           "eop:startTimeFromAscendingNode": "0000.761548",
           "ical:dtend": "2010-07-22T13:44:36Z",
           "ical:dtstart": "2010-07-22T12:05:23Z"
         },
         "eop:instrument": {
           "@type": "eop:Instrument",
           "@id": "https://gcmdservices.gsfc.nasa.gov/kms/concept/30787b9f-a407-47a5-b69b-5b9e1d1b1144",
           "eop:instrumentShortName": "SIRAL",
           "eop:sensorType": {
              "@id": "eop:ALTIMETRIC"
           }
         },
         "eop:platform": {
           "@id": "http://gcmdservices.gsfc.nasa.gov/kms/concept/a915ab2f-46c5-493b-9f18-aeb3383ee72b",
           "@type": "eop:Platform",
           "eop:platformShortName": "Cryosat",
           "eop:platformSerialIdentifier": "2"
         }
      },
      "eop:parentIdentifier": "CR2_SIR",
      "eop:productInformation": {
         "@type": "eop:ProductInformation",
         "eop:availabilityTime": "2016-03-09T16:39:40Z",
         "eop:processingCenter": "PDS",
         "eop:processingDate": "2016-03-09T16:39:40Z",
         "eop:processorVersion": "3.1",
         "eop:productType": "SIR_GDR_2_",
         "eop:qualityInformation": {
           "eop:qualityStatus": "DEGRADED"
         },
         "eop:size": 8612306,
         "eop:version": "C001"
      },
      "eop:status": {
         "@id": "eop:ARCHIVED"
      },
      "owc:links": {
         "@type": "owc:Links",
         "iana:alternate": [
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Atom format",
              "atom:type": "application/atom+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om10",
              "@type": "atom:link",
              "dct:title": "O&M metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.0"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/gml%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=om",
              "@type": "atom:link",
              "dct:title": "O&M 1.1 metadata",
              "atom:type": "application/gml+xml;profile=http://www.opengis.net/spec/EOMPOM/1.1"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/rdf%2Bxml&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "RDF/XML format",
              "atom:type": "application/rdf+xml"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/ld%2Bjson&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "JSON-LD format",
              "atom:type": "application/ld+json"
           },
           {
              "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=text/turtle&parentIdentifier=EOP:ESA:CRYOSAT:CR2_SIR&uid=CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001&recordSchema=server-choice",
              "@type": "atom:link",
              "dct:title": "Turtle format",
              "atom:type": "text/turtle"
           }
         ],
         "iana:enclosure": {
           "@id": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.DBL",
           "@type": "atom:link",
           "dct:title": "Download",
           "atom:type": "application/x-binary"
         },
         "iana:up": {
           "@id": "http://fedeo.esa.int/opensearch/request/?httpAccept=application/atom%2Bxml&uid=CR2_SIR&recordSchema=iso",
           "@type": "atom:link",
           "dct:title": "Up",
           "atom:type": "application/atom+xml"
         },
         "iana:via": {
           "@id": "ftp://science-pds.cryosat.esa.int//SIR_GDR/2010/07/CS_LTA__SIR_GDR_2__20100722T120449_20100722T134403_C001.HDR",
           "@type": "atom:link",
           "dct:title": "Via",
           "atom:type": "application/xml"
         }
      }
   }
}

Annex E: GeoJSON Schemas (Normative)

E.1 Schemas for EO GeoJSON validation

JSON Schema [OR18] representation (Draft 04) is used to define the schemas. This specification is supported by several tools (including Altova XML Spy 2016, JSONBuddy 3.5 and also Web-based tools[21]) and is also used to define data types in the OpenAPI specification[22]. It does not allow to easily model composition of schemas or inheritance without relaxing the schemas. Therefore, the property "additionalProperties" is set to true in some schema definitions to allow using the "allOf" operator to model inheritance. A future version v5 of JSON Schema is expected to propose a $merge operator to better support this. Other schema languages (e.g. SJOT[23]) have better support for this, but have less tool support.

The schemas below assume that numbers are not surrounded by double quotes as per the JSON Style Guidelines [OR16].

The file is available at http://schemas.opengis.net/eo-geojson/1.0/eo-geojson-schema.json (See Annex E:).


{
   "$schema": "http://json-schema.org/draft-04/schema#",
   "title": "GeoJSON encoding of OGC 17-003 Earth Observation Metadata",
   "description": "Definition of EO Dataset document.  Note that numbers in the instance should not be surrounded by double-quotes to validate against this schema.",
   "$ref": "#/definitions/EarthObservation",
   "definitions": {

E.1.1 Definitions/MetadataInformation


"MetadataInformation": {
         "description": "Subset of Properties",
         "type": "object",
         "properties": {
           "lang": {
              "description": "RFC3066",
              "type": "string",
              "minLength": 2,
              "maxLength": 3
           },
           "updated": {
              "type": "string",
              "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]+)?(Z|[\\+\\-][0-9]{2}:[0-9]{2})$",
              "format": "date-time"
           },
           "published": {
              "type": "string",
              "format": "date-time"
           },
           "creationDate": {
              "type": "string",
              "format": "date-time"
           }
         },
         "required": [
           "updated"
         ]
      },

E.1.2 Definitions/DataIdentification


      "DataIdentification": {
         "description": "Subset of Properties",
         "type": "object",
         "properties": {
           "parentIdentifier": {
              "type": "string"
           },
           "doi": {
              "type": "string"
           },
           "title": {
              "type": "string"
           },
           "identifier": {
              "type": "string"
           },
           "date": {
              "type": "string"
           },
           "created": {
              "type": "string",     
              "format": "date-time"
           },
           "available": {
              "type": "string"
           },
           "additionalAttributes": {
              "type": "object",
              "minProperties": 1
           }
         },
         "required": [
           "title",
           "identifier",
           "date"
         ]
      },

E.1.3 Definitions/ProcessingInformation


      "ProcessingInformation": {
         "description": "Subset of ProductInformation",
         "type": "object",
         "properties": {
           "processingLevel": {
              "type": "string",
              "enum": [
                 "1A",
                 "1B",
                 "1C",
                 "2",
                 "3"
              ]
           },
           "processorName": {
              "type": "string"
           },
           "processorVersion": {
              "type": "string"
           },
           "processingCenter": {
              "description": "Codelist",
              "type": "string"
           },
           "processingDate": {
              "type": "string",
              "format": "date-time"
           },
           "processingMode": {
              "description": "Codelist",
              "type": "string"
           },
           "compositeType": {
              "type": "string"
           },
           "format": {
              "type": "string"
           },
           "productContentsType": {
              "type": "string"
           },
           "processingMethod": {
              "type": "string"
           },
           "processingMethodVersion": {
              "type": "string"
           }
         }
      },

E.1.4 Definitions/Links


      "Links": {
         "title": "Links",
         "description": "Objects with Links grouped by \"relation\" (i.e. Atom \"rel\" attribute).",
         "type": "object",
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "Links"
              ]
           },
           "qualityReport": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "previews": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "via": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "data": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "up": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "related": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           },
           "alternates": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Link"
              }
           }
         }
      },

E.1.5 Definitions/Properties


      "Properties": {
         "title": "Properties",
         "type": "object",
         "allOf": [
           {
              "type": "object",
              "properties": {
                 "type": {
                    "type": "string",
                    "enum": [
                       "Properties"
                    ]
                 },
                 "status": {
                    "type": "string",
                    "enum": [
                       "ARCHIVED",
                       "PLANNED",
                       "ACQUIRED",
                       "CANCELLED",
                       "FAILED",
                       "POTENTIAL",
                       "REJECTED",
                       "QUALITYDEGRADED"
                    ]
                 },
                 "acquisitionInformation": {
                    "type": "array",
                    "items": {
                       "$ref": "#/definitions/AcquisitionInformation"
                    }
                 },
                 "productInformation": {
                    "$ref": "#/definitions/ProductInformation"
                 },
                 "links": {
                    "$ref": "#/definitions/Links"
                 },
                 "offerings": {
                    "description": "OGC 14-055r2",
                    "type": "array",
                    "items": {
                       "$ref": "http://schemas.opengis.net/eo-geojson/1.0/owc-geojson-schema.json#/definitions/Offering"
                    }
                 }
              },
              "required": [
                 "status",
                 "acquisitionInformation",
                 "links"
              ]
           },
           {
              "$ref": "#/definitions/DataIdentification"
           },
           {
              "$ref": "#/definitions/MetadataInformation"
           }
         ]
      },

E.1.6 Definitions/EarthObservation


      "EarthObservation": {
         "description": "GeoJSON Feature",
         "type": "object",
         "properties": {
           "@context": {
              "type": "string"
           },
           "type": {
              "title": "type",
              "type": "string",
              "enum": [
                 "Feature"
              ]
           },
           "id": {
              "type": "string",
              "format": "uri"
           },
           "geometry": {
              "oneOf": [
                 {
                    "$ref": "http://schemas.opengis.net/eo-geojson/1.0/owc-geojson-schema.json#/definitions/Geometry"
                 },
                 {
                    "type": "null"
                 }
              ]
           },
           "properties": {
              "$ref": "#/definitions/Properties"
           },
           "bbox": {
              "type": "array",
              "minItems": 4,
              "maxItems": 4,
              "items": {
                 "type": "number"
              }
           }
         },
         "required": [
           "type",
           "id",
           "geometry",
           "properties"
         ],
         "additionalProperties": false
      },

E.1.7 Definitions/Platform


      "Platform": {
         "type": "object",
         "minProperties": 1,
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "Platform"
              ]
           },
           "id": {
              "type": "string",
              "format": "uri"
           },
           "platformShortName": {
              "type": "string"
           },
           "platformSerialIdentifier": {
              "type": "string"
           },
           "orbitType": {
              "type": "string",
              "enum": [
                 "GEO",
                 "LEO"
              ]
           }
         },
         "required": [
           "platformShortName"
         ],
         "additionalProperties": false
      },

E.1.8 Definitions/Instrument


      "Instrument": {
         "type": "object",
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "Instrument"
              ]
           },
           "id": {
              "type": "string",
              "format": "uri"
           },
           "sensorType": {
              "type": "string",
              "enum": [
                 "OPTICAL",
                 "RADAR",
                 "ATMOSPHERIC",
                 "ALTIMETRIC",
                 "LIMB"
              ]
           },
           "instrumentShortName": {
              "type": "string"
           },
           "description": {
              "type": "string"
           }
         },
         "required": [
           "instrumentShortName"
         ],
         "additionalProperties": false
      },

E.1.9 Definitions/AcquisitionParameters


      "AcquisitionParameters": {
         "type": "object",
         "allOf": [
           {
              "type": "object",
              "properties": {
                 "acquisitionType": {
                    "type": "string",
                    "enum": [
                       "NOMINAL",
                       "CALIBRATION",
                       "OTHER"
                    ]
                 },
                 "acquisitionSubType": {
                    "type": "string"
                 },
                 "startTimeFromAscendingNode": {
                    "type": "integer",
                    "minimum": 0
                 },
                 "completionTimeFromAscendingNode": {
                    "type": "integer",
                    "minimum": 0
                 },
                 "relativeOrbitNumber": {
                    "type": "integer"
                 },
                 "wrsLongitude": {
                    "type": "string"
                 },
                 "wrsLatitude": {
                    "type": "string"
                 },
                 "tileId": {
                    "type": "string"
                 },
                 "groundTrackUncertainty": {
                    "type": "number"
                 },
                 "cycleNumber": {
                    "type": "integer",
                    "minimum": 0
                 },
                 "antennaLookDirection": {
                    "type": "string",
                    "enum": [
                       "LEFT",
                       "RIGHT"
                    ]
                 },
                 "acquisitionStation": {
                    "type": "string"
                 },
                 "acquisitionAngles": {
                    "$ref": "#/definitions/AcquisitionAngles"
                 },
   "operationalMode": {
              "type": "string"
           },
           "swathIdentifier": {
              "type": "string"
           },
           "polarisationMode": {
              "description": "Sar",
              "type": "string",
              "enum": [
                 "S",
                 "D",
                 "T",
                 "Q",
                 "UNDEFINED"
              ]
           },
           "polarisationChannels": {
              "description": "Sar",
              "type": "string"
           },
           "resolution": {
              "type": "number"
           },
           "verticalResolution": {
              "description": "Atm, Lmb",
              "type": "number"
           },
           "waveLengths": {
              "type": "array",
              "minItems": 1,
              "items": {
                 "$ref": "#/definitions/WavelengthInformation"
              }
           },
           "measurementType": {
              "type": "string",
              "enum": [
                 "ABSORPTION",
                 "EMISSION"
              ]
           },
           "dopplerFrequency": {
              "description": "Sar",
              "type": "number",
              "minimum": 0,
              "exclusiveMinimum": true
           },
           "samplingRates": {
              "description": "Alt",
              "type": "array",
              "items": {
                 "type": "number",
                 "minimum": 0,
                 "exclusiveMinimum": true
              }
           }
              },
              "required": [
                 "acquisitionType"
              ]
           },
           {
              "$ref": "#/definitions/TemporalInformation"
           },
           {
              "$ref": "#/definitions/VerticalSpatialDomain"
           },
           {
              "$ref": "#/definitions/OrbitParameters"
           }
         ]
      },

E.1.10 Definitions/Link


      "Link": {
         "type": "object",
         "properties": {
           "href": {
              "type": "string",
              "format": "uri"
           },
           "type": {
              "type": "string"
           },
           "title": {
              "type": "string"
           },
           "length": {
              "type": "integer",
              "minimum": 0
           },
           "category": {
              "description": "Media category property defined by MediaRSS.",
              "type": "string",
              "enum": [
                 "THUMBNAIL",
                 "QUICKLOOK",
                 "ALBUM",
                 "CLOUD",
                 "SNOW",
                 "QUALITY"
              ]
           },
           "expression": {
              "description": "Media expression property defined by MediaRSS.",
              "type": "string",
              "enum": [
                 "full",
                 "sample"
              ]
           },
           "conformsTo": {
              "type": "string",
              "format": "uri"
           }
         },
         "required": [
           "href"
         ],
         "additionalProperties": false
      },

E.1.11 Definitions/ProductInformation


      "ProductInformation": {
         "type": "object",
         "allOf": [
           {
              "type": "object",
              "properties": {
                 "type": {
                    "type": "string",
                    "enum": [
                      "ProductInformation"
                    ]
                 },
                 "productType": {
                    "type": "string"
                 },
                 "size": {
                    "type": "integer"
                 },
                 "productVersion": {
                    "type": "string"
                 },
                 "statusSubType": {
                    "type": "string",
                    "enum": [
                       "ON-LINE",
                       "OFF-LINE"
                    ]
                 },
                 "qualityInformation": {
                    "$ref": "#/definitions/QualityInformation"
                 },
                 "statusDetail": {
                    "type": "string"
                 },
                 "availabilityTime": {
                    "type": "string",
                    "format": "date-time"
                 },
                 "timeliness": {
                    "type": "string"
                 },
                 "productGroupId": {
                    "type": "string"
                 },
                 "archivingCenter": {
                    "type": "string"
                 },
                 "referenceSystemIdentifier": {
                    "type": "string"
                 },
                 "archivingDate": {
                    "type": "string",
                    "format": "date-time"
                 }
              },
              "required": [
                 "availabilityTime"
              ]
           },
           {
              "$ref": "#/definitions/ProcessingInformation"
           },
           {
              "$ref": "#/definitions/CoverageDescription"
           }
         ]
      },

E.1.12 Definitions/AcquisitionAngles


      "AcquisitionAngles": {
         "type": "object",
         "properties": {
           "illuminationAzimuthAngle": {
              "type": "number"
           },
           "illuminationZenithAngle": {
              "type": "number"
           },
           "illuminationElevationAngle": {
              "type": "number"
           },
           "incidenceAngle": {
              "type": "number"
           },
           "minimumIncidenceAngle": {
              "type": "number"
           },
           "maximumIncidenceAngle": {
              "type": "number"
           },
           "incidenceAngleVariation": {
              "type": "number"
           },
           "acrossTrackIncidenceAngle": {
              "type": "number"
           },
           "alongTrackIncidenceAngle": {
              "type": "number"
           },
           "instrumentAzimuthAngle": {
              "type": "number"
           },
           "instrumentZenithAngle": {
              "type": "number"
           },
           "instrumentElevationAngle": {
              "type": "number"
           },
           "pitch": {
              "type": "number"
           },
           "roll": {
              "type": "number"
           },
           "yaw": {
              "type": "number"
           }
         },
         "additionalProperties": false
      },

E.1.13 Definitions/QualityInformation


      "QualityInformation": {
         "type": "object",
         "properties": {
           "qualityStatus": {
              "type": "string",
              "enum": [
                 "NOMINAL",
                 "DEGRADED"
              ]
           },
           "qualityDegradation": {
              "description": "Percentage",
              "type": "number"
           },
           "qualityDegradationTag": {
              "type": "string"
           },
           "qualityDegradationQuotationMode": {
              "type": "string",
              "enum": [
                 "AUTOMATIC",
                 "MANUAL"
              ]
           }
         },
         "additionalProperties": true
      },

E.1.14 Definitions/CoverageDescription


      "CoverageDescription": {
         "description": "Subset of ProductInformation",
         "type": "object",
         "properties": {
           "cloudCover": {
              "type": "number"
           },
           "snowCover": {
              "type": "number"
           }
         }
      },

E.1.15 Definitions/FeatureCollection


      "FeatureCollection": {
         "description": "GeoJSON FeatureCollection",
         "type": "object",
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "FeatureCollection"
              ]
           },
           "bbox": {
              "type": "array"
           },
           "features": {
              "type": "array",
              "minItems": 0,
              "items": {
                 "$ref": "#/definitions/EarthObservation"
              }
           }
         },
         "required": [
           "type",
           "features"
         ]
      },

E.1.16 Definitions/WavelengthInformation


      "WavelengthInformation": {
         "type": "object",
         "minProperties": 1,
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "WavelengthInformation"
              ]
           },
           "discreteWavelengths": {
              "type": "array",
              "minItems": 1,
              "items": {
                 "type": "number",
                 "minimum": 0,
                 "exclusiveMinimum": true
              }
           },
           "endWavelength": {
              "type": "number",
              "minimum": 0,
              "exclusiveMinimum": true
           },
           "spectralRange": {
              "type": "string",
              "enum": [
                 "INFRARED",
                 "NIR",
                 "SWIR",
                 "MWIR",
                 "LWIR",
                 "FIR",
                 "UV",
                 "VISIBLE",
                 "MICROWAVE",
                 "OTHER"
              ]
           },
            "startWavelength": {
              "type": "number",
              "minimum": 0,
              "exclusiveMinimum": true
           },
           "wavelengthResolution": {
              "type": "number"
           }
         },
         "additionalProperties": false
      },

E.1.17 Definitions/VerticalSpatialDomain


      "VerticalSpatialDomain": {
         "description": "Subset of AcquisitionParameters",
         "type": "object",
         "properties": {
           "highestLocation": {
              "type": "string"
           },
           "lowestLocation": {
              "type": "string"
           },
            "locationUnit": {
              "type": "string",
              "enum": [
                 "bar",
                 "m"
              ]
           }
         }
      },

E.1.18 Definitions/TemporalInformation


      "TemporalInformation": {
         "description": "Subset of AcquisitionParameters",
         "type": "object",
         "properties": {
           "beginningDateTime": {
              "type": "string",
              "format": "date-time"
           },
           "endingDateTime": {
              "type": "string",
              "format": "date-time"
           }
         },
         "required": [
           "beginningDateTime",
           "endingDateTime"
         ]
      },

E.1.19 Definitions/AcquisitionInformation


      "AcquisitionInformation": {
         "type": "object",
         "properties": {
           "type": {
              "type": "string",
              "enum": [
                 "AcquisitionInformation"
              ]
           },
           "platform": {
              "$ref": "#/definitions/Platform"
           },
           "instrument": {
              "$ref": "#/definitions/Instrument"
           },
           "acquisitionParameters": {
              "$ref": "#/definitions/AcquisitionParameters"
           }
         }
      },

E.1.20 Definitions/OrbitParameters


      "OrbitParameters": {
         "description": "Subset of AcquisitionParameters",
         "type": "object",
         "properties": {
           "orbitDirection": {
              "type": "string",
              "enum": [
                 "ASCENDING",
                 "DESCENDING"
              ]
           },
           "lastOrbitDirection": {
              "type": "string",
              "enum": [
                 "ASCENDING",
                 "DESCENDING"
              ]
           },
           "orbitDuration": {
              "type": "integer"
           },
           "ascendingNodeDate": {
              "type": "string",
              "format": "date-time"
           },
           "ascendingNodeLongitude": {
              "type": "number"
           },
           "orbitNumber": {
              "type": "integer",
              "minimum": 0
           },
           "lastOrbitNumber": {
              "type": "number"
           }
         }
      }
   }
}

E.2 Schemas for OWC GeoJSON validation

The JSON schema definitions in the current section are "imported" by the schemas presented in the previous section. They represent a JSON Schema encoding of selected OGC 14-055r2 resources which are reused by the OGC 17-003 GeoJSON encoding without modification.

The file is available at http://schemas.opengis.net/eo-geojson/1.0/owc-geojson-schema.json (See Annex E:).


{
   "$schema": "http://json-schema.org/draft-04/schema#",
   "title": "GeoJSON encoding of OGC 14-055r2 subset required by OGC 17-003 JSON Schema",
   "description": "Definition of OGC 14-055r2 and GeoJSON elements required by GeoJSON encoding of EO Dataset Metadata.  Note that numbers in the instance should not be surrounded by double-quotes to validate against this schema. ",
   "definitions": {

E.2.1 Definitions/Point (GeoJSON)


      "Point": {
         "title": "Point",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "gj:coordinates",
              "description": "One position (longitude, lattitude)",
              "type": "array",
              "minItems": 2,
              "maxItems": 2,
              "items": {
                 "type": "number"
              }
           },
           "type": {
              "type": "string",
              "enum": [
                 "Point"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.2 Definitions/MultiPoint (GeoJSON)


      "MultiPoint": {
         "title": "point",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "gj:coordinates",
              "description": "Array of positions",
              "type": "array",
              "minItems": 1,
              "items": [
                 {
                    "description": "One position",
                    "type": "array",
                    "minItems": 2,
                    "maxItems": 2,
                    "items": {
                       "type": "number"
                    }
                 }
              ],
              "additionalItems": false
           },
           "type": {
              "type": "string",
              "enum": [
                 "MultiPoint"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.3 Definitions/LineString (GeoJSON)


      "LineString": {
         "title": "LineString",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "coordinates",
              "description": "Array of positions",
              "type": "array",
              "minItems": 2,
              "items": {
                 "description": "One position",
                 "type": "array",
                 "minItems": 2,
                 "maxItems": 2,
                 "items": {
                    "type": "number"
                 }
              }
           },
           "type": {
              "type": "string",
              "enum": [
                 "LineString"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.4 Definitions/MultiLineString (GeoJSON)


      "MultiLineString": {
         "title": "MultiLineString",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "coordinates",
              "description": "Array of linestring",
              "type": "array",
              "minItems": 1,
              "items": {
                 "description": "Linestring, i.e. array of positions",
                 "type": "array",
                 "minItems": 2,
                 "items": {
                    "description": "Position (longitude, lattitude)",
                    "type": "array",
                    "minItems": 2,
                    "maxItems": 2,
                    "items": {
                       "type": "number"
                    }
                 }
              }
           },
           "type": {
              "type": "string",
              "enum": [
                 "MultiLineString"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.5 Definitions/Polygon (GeoJSON)


      "Polygon": {
         "title": "Polygon",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "coordinates",
              "description": "Array of linestrings",
              "type": "array",
              "minItems": 1,
              "items": {
                 "description": "Linear ring, i.e. linestring or array of positions",
                 "type": "array",
                 "minItems": 1,
                 "items": {
                    "description": "One position",
                    "type": "array",
                    "minItems": 2,
                    "maxItems": 2,
                    "items": {
                       "type": "number"
                    }
                 }
              }
           },
           "type": {
              "type": "string",
              "enum": [
                 "Polygon"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.6 Definitions/MultiPolygon (GeoJSON)


      "MultiPolygon": {
         "title": "MultiPolygon",
         "type": "object",
         "properties": {
           "coordinates": {
              "title": "coordinates",
              "description": "Array of Polygons",
              "type": "array",
              "minItems": 1,
              "items": {
                 "description": "Array of linestrings",
                 "type": "array",
                 "minItems": 1,
                 "items": {
                    "description": "Linear ring, i.e. linestring or array of positions",
                    "type": "array",
                    "items": {
                       "description": "One position",
                       "type": "array",
                       "minItems": 2,
                       "maxItems": 2,
                       "items": {
                          "type": "number"
                       }
                    }
                 }
              }
           },
           "type": {
              "type": "string",
              "enum": [
                 "MultiPolygon"
              ]
           }
         },
         "required": [
           "coordinates",
           "type"
         ],
         "additionalProperties": false
      },

E.2.7 Definitions/Geometry (GeoJSON)


      "Geometry": {
         "title": "Geometry",
         "type": "object",
         "oneOf": [
           {
              "$ref": "#/definitions/Point"
           },
           {
              "$ref": "#/definitions/MultiPoint"
           },
           {
              "$ref": "#/definitions/LineString"
           },
           {
              "$ref": "#/definitions/MultiLineString"
           },
           {
              "$ref": "#/definitions/Polygon"
           },
           {
              "$ref": "#/definitions/MultiPolygon"
           }
         ]
      },

E.2.8 Definitions/Offering (OGC 14-055r2)


      "Offering": {
         "title": "Offering",
         "description": "Offering as defined in OGC 14-055r2",
         "type": "object",
         "properties": {
           "code": {
              "type": "string",
              "format": "uri"
           },
           "operations": {
              "type": "array",
              "items": {
                 "$ref": "#/definitions/Operation"
              }
           },
           "contents": {
              "type": "array"
           },
           "styles": {
              "type": "array"
           }
         },
         "required": [
           "code"
         ]
      },

E.2.9 Definitions/Operation (OGC 14-055r2)


      "Operation": {
         "description": "OGC 14-055r2",
         "type": "object",
         "properties": {
           "code": {
              "type": "string",
              "format": "uri"
           },
           "method": {
              "type": "string",
              "enum": [
                 "GET",
                 "POST",
                 "PUT",
                 "HEAD",
                 "PATCH",
                 "DELETE"
              ]
           },
           "type": {
              "description": "Media type",
              "type": "string"
           },
           "href": {
              "type": "string",
              "format": "uri"
           },
           "request": {
              "type": "object"
           },
           "result": {
              "type": "object"
           }
         },
         "required": [
           "code",
           "method",
           "href"
         ]
      }
   }
}

Annex F: Schemas and Examples

The following schema file, vocabulary definitions, context file and selected examples are provided in the OGC schema repository:

eo-geojson-schema-standalone.json
eo-geojson-schema.json
owc-geojson-schema.json
eo-geojson-vocabulary.owl
eo-geojson-vocabulary.ttl
owc-geojson-vocabulary.owl
eo-geojson.jsonld
example-1-seasat.json
example-1-seasat.jsonld
example-2-landsat.json
example-2-landsat.jsonld
example-3-cryosat.json
example-3-cryosat.jsonld
example-4-sentinel.json
example-4-sentinel.jsonld

They are available at http://schemas.opengis.net/eo-geojson/1.0.

Annex G: Revision History

Date	Version	Editor	Sections modified	Description
10/02/2017	0.0.1 Draft D6	Y. Coene	All	Initialised Draft Document.
28/02/2017	0.0.2 Draft D7	Y. Coene	All	Updated draft version provided to CEOS WGISS members.
21/04/2017	0.0.3 Draft D8	Y. Coene	All	JSON-LD content removed or moved to annexes.
			7.8	FeatureCollection encoding example added.
			Annex D	Original Annex C examples presented as GeoJSON, JSON-LD (Compacted) and JSON-LD (Expanded).
			Annex B	Original Annex D updated with content moved from inside document to this annex. Original section 5.2.2 "[JSON-LD] instance diagrams" removed. This Annex moved as Annex B as info is needed to understand following annexes with JSON-LD examples and properties.
			All	mediaType property replaced by "type" and local context added to map "type" to "atom:type" in the scope of the "links"object.
			7.1.4	Offering example added for WMS and WCS.
			Table 4	Clarification added that geometry element can be a "null" value according to RFC 7946 to address comment from CWIC team (Eugene Yu and Linjun Kang) dated 17/03/2017.
			Table 9	Multiplicity of "title" (Data Identification) corrected as per CWIC team comments 17/03/2017.
			7.1	"properties": {} replaced by "properties": {...} and "geometry": {} replaced by "geometry": {...} in JSON examples as per CWIC team comments 17/03/2017.
			7.6.2	"spectralRange" removed from Instrument table as included in WavelengthInformation.
			7.4.1.4	JSON schema diagram for LineString corrected.
			5.2.2	Section explaining JSONPath added.
			7	JSONPath information added in dictionary tables.
25/04/2017	0.0.4 Draft D9	Y. Coene	Annex C2	Mapping on UMM improved with inputs from John Taylor.
			7.7.2	Reference to ISO 8601 Duration added for CompositeType property
			Table 7	media:* properties added and examples of quicklook, thumbnail and masks added below.
			Annex B: Annex D:	Mappings added for media:* properties. media: namespace added to "expanded" examples.
24/05/2017	0.0.5 Draft D10	Y. Coene	Annex B	Annex C.3 with EO vocabulary definition (RDFS) updated and moved into JSON-LD Annex as B.3. Included in Turtle format as more compact than RDF/XML format.
			1.2	Aligned with modified table of content (Annex C.3 moved to B.3).
			7.1.3	Example of local access link with "file" URI scheme added as per RFC8089.
			7.7	format and archivingDate properties added in tables and figures.
			Annex C	GeoJSON column in Annex C.2 moved to first column of table. All tables from Annex C merged into a single table.
			All	Single namespace eop: used instead of opt:, sar;, lmb: etc.
13/06/2017	0.0.6 Draft D11	Y. Coene	7.1	Figure 3 updated to allow for geometry=null in JSON Schema.
			2.2	Description column filled in table with conformance classes.
			7.6, 7.6	Requirement class ""instrument" added (7.5.1). Requirement "wavelength-information" added (7.5.2). Requirement acquisition-angles added as dependency in 7.5.4. requirement quality-information added as dependency in 7.6.
			Annex A	Conformance classes specified in same way as OGC 15-100r1. Diagram with requirement (class) dependencies added.
			Annex E	E.1.12: JSON Schema in E.1.12 (Geometry) updated to allow for geometry=null. E.1.16: JSON Schema for Link aligned with content of document (e.g. category, expression, conformsTo). E.1.17: JSON Schema for ProductInformation aligned with content of document (e.g. archivingDate).
21/06/2017	0.0.7 Draft D12	Y. Coene	7.4.1.5	MultiLineString example added.
			7.1.4	Offering example for WPS added.
			7.3	"lang" added to map UMM metadata language information.
			9	typos "Application" corrected into "application".
			B.2	eop: namespace corrected in JSON-LD context definitions.
			B.3	Vocabulary updated to encode the individuals in a different way using intermediate classes for the enumerations.
			C.1	Mapping table completed/corrected for: - lang - alt:cycleNumber - discreteWavelengths - Spatial option 5. - Spatial option 7. - updated (EarthObservationMetadata/ creationDate)
			E.1.12	bbox JSON schema definition updated.
06/09/2017	0.0.8 Draft D13	Y. Coene		Integration of comments received from CEOS WGISS NASA team (Allan Doyle, Michael Morahan, and Archie Warnock) on draft D12 as agreed during CEOS WGISS SLT teleconference 24/08/2017:
			i	Comment AD2 (A. Doyle): "improvement" clarified. Comment AD3: reference to definition of compaction added as footnote. Comment AD4; added reference to OGC Simple Features.
			1.1	Comment AD6: rephrase sentence confirming that CEOS WGISS review comments are taken into account. CEOS added to list of submitting organisations in section iv as well.
			Table 1	Comment AD8: caption updated to avoid "EO GeoJSON" term.
			3	Comment AD9: Reference NR4 moved to OR33 to become non-normative.
			4	Comment AD10: datastrip, swath, granule, dataset definitions added or improved.
			6.2	Comment AD11: Sentence reworded.
			Table 4 and other tables.	Comment AD13: title of first column in properties table changed from "GeoJSON Property" into "JSON Property".
			Figure 4 and other figures.	Comment AD15: Remove "(GeoJSON)" from caption of JSON Schema figures except when appropriate.
			Example 3 and others.	Comment AD18: Remove "(GeoJSON)" from caption of examples except where appropriate.
			7.1.2	Comment AD21: Changed {} into {...}.
			Example 12	Comment AD33: Added remark about line breaks which were added for readability of WPS example. Comment MM4: invalid date corrected.
			7.6.3	Comment AD57: Added missing caption.
			D.1.2.2	Comment AD80: Made first and last position contain identical values in example.
			6.1	Comment MM5: Sentence added to clarify that ordering of members of any JSON object is irrelevant.
			7.4.2	Comment MM6: Example added for VerticalSpatialDomain encoding.
			7.7	Comment MM6: Example of ProductInformation encoding extended with more properties.
			C.1	Comment MM10: UMM-C property "Collection Status" mapped to "status".
			Table 11 C.1 B.3	Comment AW3: definition of lower/upper bound corrected. locationUnit added. minimumAltitude and maximumAltitude replaced by lowestLocation and highestLocation. locationUnit added to allow use of distance or pressure for expressing vertical spatial domain. locationUnit added to vocabulary definition in Turtle.
			[OR13]	Reference to CEOS Best Practice document OR13 removed (together with two related footnotes) in list of non-normative references as agreed in SWG telco 30/08/2017.
			All	Editorial comments on previous version from John Taylor addressed.
22/01/2018	1.0.0 Draft D1	Y. Coene
			B.2.2	JSON-LD 1.1 context updated to allow constants to be interpreted as relative/local URI and be expanded using @base URI.
			All	atom: replaced by "iana:" to align URI of relations with [NR11] and OGC JSON Best Practice Candidate Alpha version. Added definition of "iana:" namespace.
			7.1.5.	JSON Schema for OGC 14-055r2 Operation object added.
			All	Reference to UMM-C added as [OR04]. Existing OR04 moved to OR13.
			Annex F	Annex with download location for schemas and examples added.
			Table 18, Annex B.3, C.1, E.1.15	Comment OB1 (22/12/2017) addressed: track/frame renamed into wrsLongitudeGrid/wrsLatitudeGrid.
			Table 18, Annex B.3, C.1, E.1.15	Comment OB2 (22/12/2017) addressed: relativePassNumber renamed into relativeOrbitNumber.
			Section 7.1.1	Mandatory "identifier" added in example.
			Section 7.3	"identifier" added in figure. Mandatory "identifier" added in example.
			Annex D	"identifier" and "dct:identifier" property added in all examples.
			Annex E.1.1	"identifier" added in JSON schema fragment.
			Table 9, Table 12, Table 13, Table 20, Table 22	Properties of type DateTime better defined referring to footnote with RFC3339 pattern to be used as discussed via OGC SWG email exchange.
			Table 4	Comment AD37 closed in same way as in OGC 17-047: bbox definition updated reducing dimensions to n=2.
			All and Annex A	Relative URI of requirement classes and requirements updated ("class" removed and "eo-geojson" removed as already part of common part of URI. Core conformance class added as a choice of either a single object or collection of objects.
			Section 2.2 and Annex A	Offering conformance class added.
			Section 7.4.3. Annex B.3 Annex C.1 Annex E.1.	Optional lastOrbitDirection added to close comment JG-01 (NASA).
01/02/2018	1.0.0 Draft D2	Y. Coene	All DateTime occurances and footnote 10.	dateTime format explanation updated as decided in SWG of 31/01/2018. The definition is identical to the definition of dateTime in JSON Schema, i.e. refers to section 5.6 of RFC3339. Non-UTC times are allowed again.
2018-10-24	1.0.0 Draft D4	Y. Coene	All	Integrated comments from OAB and Public Comments: - AA-1 - AA-3 - AA-4 - Carl Reed (OAB Review). - DLR-1 - DLR-2 - DLR-3 (Partly) - DLR-4 - DLR-5 (Partly) - DLR-6 - DLR-7 - DLR-8 - DLR-9 (Partly) - DLR-10 - DLR-12 - DLR-14 - DLR-15 - DLR-17 - DLR-62 - DLR-63 - OGC-1 - OGC-2: http://www.opengis.net/owc/1.0/ and http://www.opengis.net/eo-geojson/1.0/ ontology namespaces renamed into http://www.opengis.net/ont/owc/1.0/ and http://www.opengis.net/ont/eo-geojson/1.0/ as per OGC 12-081. - VITO-2 Remain to be done: - DLR-11, - DLR-13 (no action) - DLR-16, - DLR-18 (no action) - DLR-61 - AA-2 (no action)
2018-11-23	1.0.0 Draft D5	Y. Coene	All	Implemented decisions from SWG telco on 2018-11-06: - DLR-3: domain and range restrictions removed for remaining "iana" and "media" in Annex B.3. - DLR-5: line 1134 in OWL file (Annex B.3): antennaLookDirection changed into ObjectProperty. - DLR-9: line 896 in OWL file. Eop:discreteWavelengths has "s" removed in its URI. The explanation in the OWL file that it is a "list of something" is reworded as there are no lists/arrays in JSON-LD. eop:samplingRates also changed into eop:samplingRate for same reason. - DLR-11: JSON-LD 1.0 @context removed from document (and Annex B.2). Explanation added why a JSON-LD 1.0 @context was not considered. - DLR-16: "Unit of measure (m) is SI base unit (m) without prefix.". Two times "(m)" inside this description is unnecessary. All similar sentences were modified. - DLR-16: altitudeUnit made a URI in JSON-LD in eop: namespace and two individuals created corresponding to "m" and "bar". - DLR-61: Instrument object is split into Instrument (§7.6.2) (containing id, sensorType, instrumentShortName and description) and InstrumentParameters, both below the same parent object AcquisitionInformation. Refactored JSON Schema in Annex E by isolating reusable definitions corresponding to lower level specifications in Annex E.2. SpectralRange constants updated with values proposed by DLR (§7.6.3, B.3.1, E.1.16).
2019-02-07	1.0.0 Draft D6	Y. Coene	Annex A Annex C: Annex E.1	Aligned data and metadata dates with OGC 13-026r9 version uploaded after SWG telco on 16/01/2019. Added in tables and XMLSpy diagrams: - published (metadata - Section 7.2) - creationDate (metadata - Section 7.2) - lang (metadata) – was missing. - created (data - Section 7.3) - available (data - Section 7.3) Isolated metadata dates in separate MetadataInformation object (Section 7.2) for closer alignment with UMM-G metadata model. Added conformance class for Section 7.3 in Annex A and figure in Annex A.1. conformsTo and referenceSystemIdentifier entries corrected. Updated JSON Schema for Properties, MetadataInformation and DataIdentification.
2019-02-19	1.0.0 Draft D7	Y. Coene	All	Solution for DLR-61 improved: Moved all InstrumentParameters properties to AcquisitionParameters as decided during the SWG telco on 18/02/2019. conformsTo and referenceSystemIdentifier entries in JSON-LD context updated ("@id") as the properties are of type "URI".
2019-07-31	1.0.0 r2	Y. Coene	Section 3.2 Annex A Annex B.2.1 Annex C.1	References [OR2], [OR3], [OR4],[OR32] updated to latest versions. Typos in A.6 and A.12 tables corrected. Encoding for "offerings", "operations", "contents" corrected. "kind" property added. "published" mapped to dct:issued to be consistent with Annex B.2.1

[1] See section 4.1 and [OR13].

[2] http://opengeospatial.org/cite

[3] More details can be found in the online documentation of Altova XMLSpy 2016 available at http://manual.altova.com/xmlspy/spyenterprise/index.html?viewconfig.htm.

[4] https://en.wikipedia.org/wiki/International_System_of_Units

[5] Although "type": [ "Feature", "EarthObservation" ] is valid JSON, GeoJSON expects "type" to be a fixed string "Feature".

[6] This alternative Link model is used by the YouTube JSON API and the NASA CMR JSON responses for granules.

[7] OGC 14-055r2 allows additional attributes as "extension" in a DataType link.

[8] Mandatory also according to Table 2 of OGC 14-055r2.

[9] When specifying a temporal range the element should contain two dates separated by a slash, like: "2004-02-19T03:03:23.736Z/2010-09-12T15:57:36.072Z".

[10] A String matching RFC 3339 section 5.6. yyyy-MM-ddThh:mm:ss[.S](Z/(+/-)th:tm) where yyyy = Four digit year, MM = Two digit month (01 = January), dd = Two digit day of month (01 = first day), hh = Hour of day (00 – 23), mm = Minute of hour (00 – 59), ss = Second of minute (00 – 59), S = fraction of seconds with any precision. Times are in UTC (ending with the mandatory Z character) or defined with an offset w.r.t. UTC: th = Time offset hours (00 - 23), tm = Time offset minutes (00 - 59).

[11] Future work: model dependency of some attributes on the value of this property using JSON Schema dependencies.

[12] https://en.wikipedia.org/wiki/International_System_of_Units#Derived_units

[13] https://en.wikipedia.org/wiki/ISO_8601#Durations

[14] Note that "method" as property name would conflict with the "method" property in Offerings.

[15] http://docs.oasis-open.org/odata/odata-json-format/v4.0/odata-json-format-v4.0.pdf

[16] http://docs.oasis-open.org/search-ws/searchRetrieve/v1.0/os/part0-overview/searchRetrieve-v1.0-os-part0-overview.html

[17] http://ontorule-project.eu/parrot/parrot

[18] http://www.essepuntato.it/lode

[19] https://github.com/dgarijo/Widoco

[20] UMM-Common [OR3] has removed notion of "sensor" since version 1.4, but allows for instruments composed of instruments (See [OR3] section 1.9.20.1).

[21] E.g. https://jsonschemalint.com/#/version/draft-04/markup/json or http://www.jsonschemavalidator.net/

[22] https://www.openapis.org/specification/repo

[23] "SJOT: Schemas for JSON Objects", https://www.genivia.com/sjot.html