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‎README.md‎

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# EBV Phenology Finland — 17 OGC Building Blocks
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Complete modelling of the **CoverageJSON UML** (OGC 21-069r2) plus **EBV-specific blocks**.
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## [→ Interactive CoverageJSON Viewer](viewer/)
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## CoverageJSON UML → Building Blocks (1:1 mapping)
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```
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CoverageCollection → covjson-coverage-collection
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└─ 1..* Coverage → covjson-coverage
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├─ 1 Domain → covjson-domain
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│ ├─ 1..* Axis → covjson-axis
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│ └─ * ReferenceSystem → covjson-reference-system
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├─ * ParameterGroup → covjson-parameter-group
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│ └─ 1..* Parameter → covjson-parameter
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└─ 1..* Range → covjson-range
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├─ 1..* NdArray → covjson-ndarray
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└─ 0..1 TiledNdArray → covjson-tiled-ndarray
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```
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## EBV-Specific Blocks
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| Block | Purpose |
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|-------|---------|
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| EBV Dataset Profile | GEO BON class/name/entities/scope |
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| Phenology Indicators | Trends (-0.45 d/yr), anomalies, change points |
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| Data Provenance | W3C PROV: MODIS → FSC/NDWI → VAP |
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| Data Quality | ±9 days accuracy, ~3 days bias |
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| EBV Phenology Ontology | OWL/SKOS in 4 languages (EN, ES, ZH, RO) |
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| Policy Alignment | GBF Goal A, SDG 15, IPBES, NBSAP |
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| Ecosystem Services Link | Pollination, carbon, water impacts |
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## Dataset
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Vegetation Phenology in Finland (2001–2018). DOI: [10.25829/xf8ek6](https://doi.org/10.25829/xf8ek6). CC BY 4.0.

‎_sources/covjson-axis/bblock.json‎

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{"$schema":"metaschema.yaml","name":"CovJSON Axis","abstract":"Single coordinate axis of a coverage domain: spatial (x,y,z) or temporal (t). Defines start, stop, num for regular axes or explicit values.","status":"under-development","dateTimeAddition":"2024-01-01T00:00:00Z","itemClass":"schema","register":"ogc-building-block-examples","version":"1.0","dateOfLastChange":"2024-01-01","sources":[{"title":"OGC CoverageJSON 21-069r2 §7.2","link":"https://docs.ogc.org/cs/21-069r2/21-069r2.html"}],"tags":["covjson","axis","coordinate","grid"],"group":"CoverageJSON Primitives","highlighted":false}

‎_sources/covjson-axis/description.md‎

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# CovJSON Axis
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A single coordinate axis. Two forms:
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**Regular axis** (evenly spaced): `{"start": 14.10, "stop": 35.23, "num": 320}`
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**Irregular axis** (explicit values): `{"values": ["2001", "2002", ..., "2018"]}`
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## Finland Phenology Axes
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- **x** (longitude): start=14.10, stop=35.23, num=320
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- **y** (latitude): start=57.75, stop=71.17, num=200
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- **t** (time): values=["2001", "2002", ..., "2018"]

‎_sources/covjson-axis/schema.yaml‎

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$schema: https://json-schema.org/draft/2020-12/schema
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description: CoverageJSON Axis - regular or irregular coordinate axis
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type: object
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properties:
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start: {type: number}
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stop: {type: number}
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num: {type: integer}
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values:
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type: array
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items:
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oneOf:
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- {type: number}
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- {type: string}
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bounds:
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type: array
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items: {type: number}

‎_sources/covjson-coverage-collection/bblock.json‎

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{"$schema":"metaschema.yaml","name":"CovJSON Coverage Collection","abstract":"Collection of coverages grouping multiple entities. Maps to the EBV Data Cube with 4 dimensions: lon, lat, time, entity.","status":"under-development","dateTimeAddition":"2024-01-01T00:00:00Z","itemClass":"schema","register":"ogc-building-block-examples","version":"1.0","dateOfLastChange":"2024-01-01","sources":[{"title":"OGC CoverageJSON 21-069r2 §6.3","link":"https://docs.ogc.org/cs/21-069r2/21-069r2.html"}],"dependsOn":["syke.ebv.phenology.covjson-coverage"],"tags":["covjson","collection","datacube","entities"],"group":"CoverageJSON Composites","highlighted":true}

‎_sources/covjson-coverage-collection/description.md‎

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# CovJSON Coverage Collection
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Groups multiple coverages = EBV Data Cube.
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## [→ Open Interactive Viewer](../../viewer/)
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## UML: CoverageCollection 0..1 ← 1..* Coverage
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```
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CoverageCollection (EBV Data Cube)
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├── Coverage: Coniferous VAP (320×200×18)
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├── Coverage: Deciduous VAP (320×200×18)
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└── ParameterGroup: "Ecosystem Phenology"
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├── member: VAP_coniferous
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└── member: VAP_deciduous
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```
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## 4 Dimensions of the EBV Cube
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1. **x** (longitude): 14.10° – 35.23°
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2. **y** (latitude): 57.75° – 71.17°
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3. **t** (time): 2001–2018 annual
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4. **entity**: Coniferous, Deciduous (one Coverage per entity)

‎_sources/covjson-coverage-collection/examples.yaml‎

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examples:
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- title: Finland VAP collection (coniferous + deciduous)
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content: |
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CoverageCollection with two entity coverages. ParameterGroup semantically links
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both under EcosystemPhenology. Maps to the EBV Data Cube (lon, lat, time, entity).
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snippets:
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- language: json
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ref: examples/finland-vap-all-entities.json

‎_sources/covjson-coverage-collection/examples/finland-vap-all-entities.json‎

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{
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"type": "CoverageCollection",
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"domainType": "Grid",
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"parameters": {
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"VAP": {
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"type": "Parameter",
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"description": {
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"en": "Start of Vegetation Active Period",
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"es": "Inicio del Periodo Activo de Vegetación",
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"zh": "植被活跃期起始",
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"ro": "Începutul Perioadei Active a Vegetației"
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},
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"unit": {
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"label": {"en": "Day of Year"},
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"symbol": {"value": "d"}
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},
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"observedProperty": {
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"id": "https://w3id.org/ogc/hosted/ebv-phenology/StartOfVAP",
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"label": {"en": "Start of VAP", "es": "Inicio del PAV", "zh": "VAP起始", "ro": "Începutul VAP"}
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}
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}
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},
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"parameterGroups": [
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{
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"type": "ParameterGroup",
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"label": {"en": "Phenology by forest type", "es": "Fenología por tipo de bosque"},
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"observedProperty": {
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"id": "https://w3id.org/ogc/hosted/ebv-phenology/EcosystemPhenology",
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"label": {"en": "Ecosystem Phenology", "es": "Fenología del Ecosistema"}
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},
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"members": ["VAP_coniferous", "VAP_deciduous"]
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}
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],
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"coverages": [
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{
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"type": "Coverage",
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"domain": {
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"type": "Domain", "domainType": "Grid",
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"axes": {
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"x": {"start":14.10,"stop":35.23,"num":320},
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"y": {"start":57.75,"stop":71.17,"num":200},
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"t": {"values":["2001","2002","2003","2004","2005","2006","2007","2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018"]}
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},
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"referencing": [{"coordinates":["x","y"],"system":{"type":"GeographicCRS","id":"http://www.opengis.net/def/crs/OGC/1.3/CRS84"}},{"coordinates":["t"],"system":{"type":"TemporalRS","calendar":"Gregorian"}}]
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},
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"ranges": {"VAP": {"type":"NdArray","dataType":"integer","axisNames":["t","y","x"],"shape":[18,200,320]}}
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},
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{
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"type": "Coverage",
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"domain": {
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"type": "Domain", "domainType": "Grid",
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"axes": {
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"x": {"start":14.10,"stop":35.23,"num":320},
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"y": {"start":57.75,"stop":71.17,"num":200},
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"t": {"values":["2001","2002","2003","2004","2005","2006","2007","2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018"]}
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},
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"referencing": [{"coordinates":["x","y"],"system":{"type":"GeographicCRS","id":"http://www.opengis.net/def/crs/OGC/1.3/CRS84"}},{"coordinates":["t"],"system":{"type":"TemporalRS","calendar":"Gregorian"}}]
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},
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"ranges": {"VAP": {"type":"NdArray","dataType":"integer","axisNames":["t","y","x"],"shape":[18,200,320]}}
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}
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]
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}

‎_sources/covjson-coverage-collection/schema.yaml‎

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$schema: https://json-schema.org/draft/2020-12/schema
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description: CoverageJSON CoverageCollection - groups multiple entity coverages
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type: object
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required: [type, coverages]
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properties:
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type:
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type: string
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const: CoverageCollection
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domainType: {type: string}
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parameters: {type: object}
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parameterGroups:
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type: array
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items: {type: object}
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coverages:
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type: array
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items:
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type: object
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required: [type]

‎_sources/covjson-coverage/bblock.json‎

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{"$schema":"metaschema.yaml","name":"CovJSON Coverage","abstract":"Complete coverage composing Domain, Parameters, ParameterGroups and Ranges. The core CoverageJSON object for raster data.","status":"under-development","dateTimeAddition":"2024-01-01T00:00:00Z","itemClass":"schema","register":"ogc-building-block-examples","version":"1.0","dateOfLastChange":"2024-01-01","sources":[{"title":"OGC CoverageJSON 21-069r2 §6","link":"https://docs.ogc.org/cs/21-069r2/21-069r2.html"}],"dependsOn":["syke.ebv.phenology.covjson-domain","syke.ebv.phenology.covjson-parameter","syke.ebv.phenology.covjson-parameter-group","syke.ebv.phenology.covjson-range"],"tags":["covjson","coverage","raster","composite"],"group":"CoverageJSON Composites","highlighted":true,"ldContext":"context.jsonld"}

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