@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/06529c0b-af30-48b8-b628-c17ee419c807> a dcat:Dataset ;
    dct:description "This dataset represents estimated surface water TN flux within individual,  local NHDPlusV2 catchments and upstream, contributing watersheds. Measured as kg N/km2." ;
    dct:identifier "956964c5-b117-49b7-b469-35b90d95574a" ;
    dct:issued "2015-04-23"^^xsd:date ;
    dct:language "{en-US}" ;
    dct:modified "2023-11-13"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-125.0000 24.5000, -125.0000 49.5000, -66.5000 49.5000, -66.5000 24.5000, -125.0000 24.5000))"^^gsp:wktLiteral ] ;
    dct:title "The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Surface Water Nitrogen Flux" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "U.S. Environmental Protection Agency, Office of Research and Development (ORD), Center for Public Health and Environmental Assessment (CPHEA), Pacific Ecological Systems Division (PESD), Marc Weber" ;
            vcard:hasEmail <mailto:weber.marc@epa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/06529c0b-af30-48b8-b628-c17ee419c807/resource/7e228527-85aa-4583-a356-0beeedd94871>,
        <https://data.amerigeoss.org/dataset/06529c0b-af30-48b8-b628-c17ee419c807/resource/7e42a9de-2781-48b3-ae3d-b8e410ba4f90> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "alabama",
        "arizona",
        "arkansas",
        "california",
        "colorado",
        "connecticut",
        "delaware",
        "district-of-columbia",
        "ecosystem",
        "environment",
        "florida",
        "georgia",
        "idaho",
        "illinois",
        "indiana",
        "inlandwaters",
        "iowa",
        "kansas",
        "kentucky",
        "louisiana",
        "maine",
        "maryland",
        "massachusetts",
        "michigan",
        "minnesota",
        "mississippi",
        "missouri",
        "modeling",
        "monitoring",
        "montana",
        "natural-resources",
        "nebraska",
        "nevada",
        "new-hampshire",
        "new-jersey",
        "new-mexico",
        "new-york",
        "north-carolina",
        "north-dakota",
        "ohio",
        "oklahoma",
        "oregon",
        "pennsylvania",
        "rhode-island",
        "south-carolina",
        "south-dakota",
        "surface-water",
        "tennessee",
        "texas",
        "united-states",
        "united-states-of-america",
        "usa",
        "utah",
        "vermont",
        "virginia",
        "washington",
        "west-virginia",
        "wisconsin",
        "wyoming" ;
    dcat:theme <%7Benvironment%7D> .

<https://data.amerigeoss.org/dataset/06529c0b-af30-48b8-b628-c17ee419c807/resource/7e228527-85aa-4583-a356-0beeedd94871> a dcat:Distribution ;
    dct:description "This dataset represents estimated surface water TN flux within individual,  local NHDPlusV2 catchments and upstream, contributing watersheds. Measured as kg N/km2." ;
    dct:format "Comma-Separated Values (.csv)" ;
    dct:issued "2025-02-04T14:45:21.482965"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:57:04.418470"^^xsd:dateTime ;
    dct:title "Surface Water Nitrogen Flux" ;
    dcat:accessURL <https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset#access-streamcat-data> ;
    dcat:mediaType "text/csv" .

<https://data.amerigeoss.org/dataset/06529c0b-af30-48b8-b628-c17ee419c807/resource/7e42a9de-2781-48b3-ae3d-b8e410ba4f90> a dcat:Distribution ;
    dct:description """StreamCat currently contains over 600 metrics that include local catchment (Cat), watershed (Ws), and special metrics. The special metrics were derived through modeling or by combining other StreamCat metrics. These variables include predicted water temperature, predicted biological condition, and the indexes of catchment and watershed integrity. See Geospatial Framework and Terms below for definitions of catchment and watershed as used with the StreamCat Dataset.

These metrics are available for ~2.65 million stream segments and their associated catchments across the conterminous US. StreamCat metrics represent both natural (e.g., soils and geology) and anthropogenic (e.g, urban areas and agriculture) landscape information.""" ;
    dct:format "API" ;
    dct:issued "2023-10-03T20:28:54.733545"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:57:04.417635"^^xsd:dateTime ;
    dct:title "StreamCat Dataset" ;
    dcat:accessURL <https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset> .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .