# 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-black-marble-snpp-nighttime-lights-corrected-daily> a tf:DataProductCollection ;
    dct:identifier "nasa-black-marble-snpp-nighttime-lights-corrected-daily" ;
    dct:title "VIIRS/NPP Gap-Filled Lunar BRDF-Adjusted Nighttime Lights Daily L3 Global 15 arc-second Linear Lat Lon Grid V2" ;
    dct:description "NASA Black Marble Suomi NPP VIIRS Version 2 daily Level 3 moonlight- and atmosphere-corrected, lunar BRDF-adjusted nighttime-light tiles derived from passive visible/near-infrared DNB observations. Corrected and gap-filled radiance fields are distinct. Gap-filled values can represent earlier high-quality retrievals; inspect the Latest_High_Quality_Retrieval age in days along with mandatory quality, cloud-mask and snow/ice flags. Screen twilight, lunar eclipse, aurora and glint effects using publisher guidance. This is not thermal imaging or a direct current-day measurement everywhere. The 15 arc-second geographic grid is angular posting, distinct from the underlying 750 m DNB sampling; catalog metre GSD is unspecified. Native 10-degree tile polygons and daily intervals describe file coverage, not illuminated areas, individual light sources or current facility activity. Radiance alone does not establish population, power loss or an identified object. Only requested metadata pages are indexed; HDF-EOS5/HDF5 science files stay remote under Earthdata/LAADS requirements. Native archive scope does not guarantee complete coverage or current delivery. NOAA announces Suomi NPP science-product delivery will cease at 13:00 UTC on November 2, 2026; native archive end dates remain unchanged." ;
    tf:providedBy <https://terrafabric.world/id/provider/nasa> ;
    tf:dataTier tf:tier-product ;
    tf:processingLevel tf:level-L3 ;
    tf:accessClass "free" ;
    tf:hasModality tf:modality-optical ;
    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 "VNP46A2_2" ;
    dcat:keyword "VIIRS" ;
    dcat:keyword "Suomi NPP" ;
    dcat:keyword "Black Marble" ;
    dcat:keyword "version 2" ;
    dcat:keyword "nighttime lights" ;
    dcat:keyword "daily" ;
    dcat:keyword "15 arc-second grid" ;
    dcat:keyword "passive optical" ;
    dcat:keyword "DNB" ;
    dcat:keyword "panchromatic" ;
    dcat:keyword "moonlight adjusted" ;
    dcat:keyword "atmosphere corrected" ;
    dcat:keyword "BRDF" ;
    dcat:keyword "gap filled" ;
    dcat:keyword "retrieval age" ;
    dcat:keyword "quality flags" ;
    tf:spatialExtent <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/extent/spatial> ;
    tf:temporalExtent <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/extent/temporal> ;
    tf:format <https://terrafabric.world/id/format/stac> ;
    tf:format <https://terrafabric.world/id/format/hdf-eos5> ;
    tf:format <https://terrafabric.world/id/format/hdf5> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/access/0> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/access/1> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/access/2> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/access/3> .

<https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/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-black-marble-snpp-nighttime-lights-corrected-daily/extent/temporal> a tf:TemporalExtent ;
    tf:startDate "2012-01-19"^^xsd:date .

<https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/access/0> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://search.earthdata.nasa.gov/"^^xsd:anyURI .

<https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/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-black-marble-snpp-nighttime-lights-corrected-daily/access/2> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/VNP46A2/"^^xsd:anyURI .

<https://terrafabric.world/id/collection/nasa-black-marble-snpp-nighttime-lights-corrected-daily/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 .