@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/783e6ad2-4eb8-4016-bbf6-27ccf50aa711> a dcat:Dataset ;
    dct:description "Daily measurements of Willow Creek Lake water storage were provided by the Nebraska Department of Natural Resources for 2012–14.  These water levels were used in conjunction with a table (provided by the Lower Elkhorn Natural Resources District) relating lake storage volume to surface area.  From these, daily estimates of surface area were derived for the lake." ;
    dct:identifier "USGS:5af362dbe4b0da30c1b2bac8" ;
    dct:issued "2025-11-22T19:40:46.945017"^^xsd:dateTime ;
    dct:modified "20200824"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-97.6083 42.1644, -97.6083 42.1861, -97.5525 42.1861, -97.5525 42.1644, -97.6083 42.1644))"^^gsp:wktLiteral ] ;
    dct:title "Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Lake Level" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Nebraska Water Science Center" ;
            vcard:hasEmail <mailto:bhall@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/783e6ad2-4eb8-4016-bbf6-27ccf50aa711/resource/793bdfcb-aca9-4638-9f75-81b267779d31>,
        <https://data.amerigeoss.org/dataset/783e6ad2-4eb8-4016-bbf6-27ccf50aa711/resource/ada783e4-d888-4d29-bbb0-6cdae7dbf134> ;
    dcat:keyword "algal-blooms",
        "amerigeo",
        "amerigeoss",
        "ckan",
        "geo",
        "geoss",
        "national",
        "north-america",
        "nutrient-content-water",
        "united-states",
        "usgs-5af362dbe4b0da30c1b2bac8",
        "willow-creek",
        "willow-creek-lake" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/783e6ad2-4eb8-4016-bbf6-27ccf50aa711/resource/793bdfcb-aca9-4638-9f75-81b267779d31> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-07T02:45:28.201256"^^xsd:dateTime ;
    dct:modified "2025-11-22T19:40:46.933193"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9RBDQI5> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/783e6ad2-4eb8-4016-bbf6-27ccf50aa711/resource/ada783e4-d888-4d29-bbb0-6cdae7dbf134> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-07T02:45:28.201250"^^xsd:dateTime ;
    dct:modified "2025-11-22T19:40:46.932524"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5af362dbe4b0da30c1b2bac8.xml> ;
    dcat:mediaType "text/xml" .

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