@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/151be0b4-7afd-439c-b617-9c68e62f7f34> a dcat:Dataset ;
    dct:description "This data release comprises nearly three decades of measurements of sandbar topography for monitoring sites along the Colorado River in Grand Canyon National Park and Glen Canyon National Recreation Area.  The data were collected to monitor the effects of the operations of Glen Canyon Dam on sandbars, which are also recreational campsites. The data were collected by the US Geological Survey Grand Canyon Monitoring and Research Center in cooperation with Northern Arizona University. Funding for data collection, processing, and reporting has been provided by the Glen Canyon Dam Adaptive Management Program administered by the US Department of the Interior Bureau of Reclamation." ;
    dct:identifier "USGS:5babd289e4b08583a5cf52b1" ;
    dct:issued "2025-11-20T03:26:05.487029"^^xsd:dateTime ;
    dct:modified "20210525"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-114.0238 35.7401, -114.0238 36.9659, -111.4768 36.9659, -111.4768 35.7401, -114.0238 35.7401))"^^gsp:wktLiteral ] ;
    dct:title "Long-term sandbar monitoring data along the Colorado River in Marble and Grand Canyons, Arizona" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Paul E Grams" ;
            vcard:hasEmail <mailto:pgrams@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/151be0b4-7afd-439c-b617-9c68e62f7f34/resource/5d2f8374-2f23-4f07-8fe5-4568a38ad6fe>,
        <https://data.amerigeoss.org/dataset/151be0b4-7afd-439c-b617-9c68e62f7f34/resource/f587bbaf-3653-4a0f-9de2-20c8f4cb2a94> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "aquatic-ecosystems",
        "arizona",
        "campsites",
        "ckan",
        "colorado-river",
        "dam-operations",
        "dams",
        "deposition",
        "elevation",
        "erosion",
        "field-experiments",
        "field-inventory-and-monitoring",
        "geo",
        "geomorphology",
        "geoscientificinformation",
        "geoss",
        "glen-canyon-dam",
        "glen-canyon-national-recreation-area",
        "grand-canyon-national-park",
        "high-flow-experiments",
        "hydrology",
        "hydropower",
        "inlandwaters",
        "measurements",
        "monitoring",
        "national",
        "north-america",
        "power-generation-water-use",
        "rebuild-sandbars",
        "recreation",
        "recreational-campsites",
        "river-ecosystems",
        "rivers",
        "sandbar-topography",
        "sandbars",
        "sedimentation",
        "size-and-condition-of-the-sandbars",
        "terrestrial-ecosystems",
        "topography",
        "united-states",
        "usgs-5babd289e4b08583a5cf52b1",
        "water-resources" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/151be0b4-7afd-439c-b617-9c68e62f7f34/resource/5d2f8374-2f23-4f07-8fe5-4568a38ad6fe> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T21:08:20.144782"^^xsd:dateTime ;
    dct:modified "2025-11-20T03:26:05.466075"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P93F8JJK> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/151be0b4-7afd-439c-b617-9c68e62f7f34/resource/f587bbaf-3653-4a0f-9de2-20c8f4cb2a94> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T21:08:20.144772"^^xsd:dateTime ;
    dct:modified "2025-11-20T03:26:05.465663"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5babd289e4b08583a5cf52b1.xml> ;
    dcat:mediaType "text/xml" .

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