@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/1d6984da-90bc-4703-8ba5-6ad60c0b2510> a dcat:Dataset ;
    dct:description "Data release includes the U.S. Geological Survey (USGS) estimate of spring nitrogen fluxes summed from nine tributaries to the Chesapeake Bay from 1985 to 2021.  Data are presented as the sum from tributaries within the USGS River Input Monitoring (RIM) network identified by site numbers:  01491000, 01578310, 01594440, 01646580, 01668000, 01673000, 01674500, 02035000, 02041650. Periods of estimation include January through May and November through May. The estimates are made using up-to-date streamflow and all total nitrogen analyses available as of June 1 of the reporting year." ;
    dct:identifier "USGS:60f97f3dd34e3ccd82fe3f4b" ;
    dct:issued "2025-11-20T08:13:36.813274"^^xsd:dateTime ;
    dct:modified "20210817"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-79.1675 36.2085, -79.1675 42.7144, -74.9048 42.7144, -74.9048 36.2085, -79.1675 36.2085))"^^gsp:wktLiteral ] ;
    dct:title "Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2021" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Joel D Blomquist" ;
            vcard:hasEmail <mailto:jdblomqu@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/1d6984da-90bc-4703-8ba5-6ad60c0b2510/resource/a136c467-094b-4acd-a3c4-7dd714cdfb58>,
        <https://data.amerigeoss.org/dataset/1d6984da-90bc-4703-8ba5-6ad60c0b2510/resource/d41142fb-699e-4cbc-b2fa-b48f6ebe7e2f> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "appomattox-river",
        "chesapeake-bay",
        "choptank-river",
        "ckan",
        "geo",
        "geoss",
        "james-river",
        "mattaponi-river",
        "national",
        "nitrogen-flux",
        "nitrogen-load",
        "north-america",
        "pamunkey-river",
        "patuxent-river",
        "potomac-river",
        "rappahannock-river",
        "susquehanna-river",
        "united-states",
        "usgs-60f97f3dd34e3ccd82fe3f4b" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/1d6984da-90bc-4703-8ba5-6ad60c0b2510/resource/a136c467-094b-4acd-a3c4-7dd714cdfb58> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T18:42:49.259720"^^xsd:dateTime ;
    dct:modified "2025-11-20T08:13:36.801698"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.60f97f3dd34e3ccd82fe3f4b.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/1d6984da-90bc-4703-8ba5-6ad60c0b2510/resource/d41142fb-699e-4cbc-b2fa-b48f6ebe7e2f> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T18:42:49.259726"^^xsd:dateTime ;
    dct:modified "2025-11-20T08:13:36.802130"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9N4MPIH> ;
    dcat:mediaType "application/http" .

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