# 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/usda-ssurgo> a tf:DataProductCollection ;
    dct:identifier "usda-ssurgo" ;
    dct:title "NRCS Soil Survey Geographic Database" ;
    dct:description "Soil polygons and properties for terrain mobility, drainage and engineering context. Survey coverage and scale vary." ;
    tf:providedBy <https://terrafabric.world/id/provider/usda-nrcs> ;
    tf:dataTier tf:tier-product ;
    tf:processingLevel tf:level-L4 ;
    tf:accessClass "free" ;
    tf:hasModality tf:modality-soil ;
    tf:hasModality tf:modality-vector ;
    tf:dataCategory tf:category-places ;
    tf:hasPlatform <https://terrafabric.world/id/platform/national-cooperative-soil-survey> ;
    tf:hasInstrument <https://terrafabric.world/id/instrument/field-soil-surveys> ;
    tf:hasInstrument <https://terrafabric.world/id/instrument/laboratory-soil-analysis> ;
    tf:allWeather false ;
    tf:nightCapable false ;
    tf:taskable false ;
    tf:license <https://terrafabric.world/id/license/us-public-domain> ;
    tf:releasability tf:marking-public ;
    dcat:keyword "land" ;
    dcat:keyword "ground" ;
    dcat:keyword "mobility" ;
    tf:spatialExtent <https://terrafabric.world/id/collection/usda-ssurgo/extent/spatial> ;
    tf:temporalExtent <https://terrafabric.world/id/collection/usda-ssurgo/extent/temporal> ;
    tf:format <https://terrafabric.world/id/format/shapefile> ;
    tf:format <https://terrafabric.world/id/format/delimited-text> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/usda-ssurgo/access/0> ;
    tf:accessibleVia <https://terrafabric.world/id/collection/usda-ssurgo/access/1> .

<https://terrafabric.world/id/collection/usda-ssurgo/extent/spatial> a tf:SpatialExtent ;
    tf:bbox "-180,0,180,85" ;
    tf:asWKT "POLYGON((-180 0,180 0,180 85,-180 85,-180 0))"^^geo:wktLiteral .

<https://terrafabric.world/id/collection/usda-ssurgo/extent/temporal> a tf:TemporalExtent ;
    tf:startDate "2026-09-29"^^xsd:date .

<https://terrafabric.world/id/collection/usda-ssurgo/access/0> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://www.nrcs.usda.gov/resources/data-and-reports/soil-survey-geographic-database-ssurgo"^^xsd:anyURI .

<https://terrafabric.world/id/collection/usda-ssurgo/access/1> a tf:AccessMethod ;
    tf:accessKind "https" ;
    tf:endpointURL "https://websoilsurvey.nrcs.usda.gov/"^^xsd:anyURI .