# TerraFabric Ontology — generated by terrafabric-server
# version 1.0.0

@prefix tf: <https://terrafabric.world/ont#> .
@prefix tfr: <https://terrafabric.world/id/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix sosa: <http://www.w3.org/ns/sosa/> .
@prefix ssn: <http://www.w3.org/ns/ssn/> .
@prefix geo: <http://www.opengis.net/ont/geosparql#> .
@prefix schema: <https://schema.org/> .
@prefix odrl: <http://www.w3.org/ns/odrl/2/> .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation> a tf:PreprocessedCollection ;
    dct:identifier "nasa-viirs-snpp-imagery-geolocation" ;
    dct:title "VIIRS/NPP Imagery Resolution Terrain Corrected Geolocation 6-Min L1 Swath 375 m" ;
    dct:description "NASA VIIRS Suomi NPP Version 2 Level 1 terrain-corrected geolocation companion for 375 m I-band pixels in six-minute swaths. Derived fields include geodetic latitude/longitude, surface height above the geoid, solar/sensor viewing angles, land/water masks and quality flags. Nominal pixel sampling is not an image GSD or geolocation-accuracy guarantee, so catalog GSD is unspecified. This coordinate product is not calibrated radiance, a new terrain DEM, active LiDAR or microwave radar. Match platform, acquisition time and compatible processing version before geolocating science arrays. Apply publisher calibration/geolocation, quality and uncertainty guidance. Native granule polygons and observation intervals remain intact; the footprint viewer does not enumerate every internal science pixel. Only requested metadata pages are indexed; NetCDF assets stay remote and archive registration does not guarantee current delivery. NOAA announces Suomi NPP science-product delivery will cease at 13:00 UTC on November 2, 2026; archived data remain distinct from live delivery." ;
    tf:providedBy <https://terrafabric.world/id/provider/nasa> ;
    tf:dataTier tf:tier-preprocessed ;
    tf:processingLevel tf:level-L1 ;
    tf:accessClass "free" ;
    tf:hasModality tf:modality-earth-observation ;
    tf:dataCategory tf:category-imagery ;
    tf:hasPlatform <https://terrafabric.world/id/platform/suomi-npp> ;
    tf:hasInstrument <https://terrafabric.world/id/instrument/viirs> ;
    tf:allWeather false ;
    tf:nightCapable true ;
    tf:taskable false ;
    tf:license <https://terrafabric.world/id/license/provider-terms> ;
    tf:releasability tf:marking-public ;
    dcat:keyword "earth-observation" ;
    dcat:keyword "primary-source" ;
    dcat:keyword "stac" ;
    dcat:keyword "VNP03IMG_2" ;
    dcat:keyword "VIIRS" ;
    dcat:keyword "snpp" ;
    dcat:keyword "Suomi NPP" ;
    dcat:keyword "version 2" ;
    dcat:keyword "I bands" ;
    dcat:keyword "terrain-corrected geolocation" ;
    dcat:keyword "latitude" ;
    dcat:keyword "longitude" ;
    dcat:keyword "viewing geometry" ;
    dcat:keyword "geoid height" ;
    dcat:keyword "coordinate reference" ;
    dcat:keyword "375 m sampling" ;
    tf:spatialExtent <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/extent/spatial> ;
    tf:temporalExtent <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/extent/temporal> ;
    tf:format <https://terrafabric.world/id/format/stac> ;
    tf:format <https://terrafabric.world/id/format/netcdf-4> ;
    tf:format <https://terrafabric.world/id/format/hdf5> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/0> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/1> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/2> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/3> .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/extent/spatial> a tf:SpatialExtent ;
    tf:bbox "-180,-90,180,90" ;
    tf:asWKT "POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))"^^geo:wktLiteral .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/extent/temporal> a tf:TemporalExtent ;
    tf:startDate "2012-01-19"^^xsd:date .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/0> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://search.earthdata.nasa.gov/"^^xsd:anyURI .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/1> a tf:AccessMethod ;
    tf:accessKind "stac-api" ;
    tf:endpointURL "https://cmr.earthdata.nasa.gov/stac/LAADS"^^xsd:anyURI .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/2> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/VNP03IMG/"^^xsd:anyURI .

<https://terrafabric.world/id/collection/nasa-viirs-snpp-imagery-geolocation/access/3> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://www.nesdis.noaa.gov/news/cessation-of-suomi-national-polar-orbiting-partnership-s-npp-data-users-onafter-november-2-2026"^^xsd:anyURI .