@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/5452bc2a-a9ad-4e2f-a4af-06a20162f0a8> a dcat:Dataset ;
    dct:description "The data contained in these tables detail the areal extent of exposed sand, in square meters, along the Colorado River between Glen Canyon Dam, Arizona, and Bright Angel Creek, Arizona, within Glen Canyon National Recreation Area and Grand Canyon National Park. Sand exposure areas are provided as a function of Colorado River discharge, as measured at Lees Ferry, Arizona, in increments of 1000 cubic feet per second. Exposed sand extents are subdivided into mapped and unmapped sand areas; at Colorado River discharge; at flows below 8,000 cubic feet per second, the total extent of exposed sand can be estimated as the sum of field-mapped sand and that sand which was unmapped, but estimated to be present across the study area. At discharges at or above 8,000 cubic feet per second, all unmapped sand is inundated. Cells highlighted in green correspond to inundation extents derived from hydraulic modeling along the Colorado River in Grand Canyon, and linear interpolation was performed to estimate exposed sand extent between these discrete modeling discharges." ;
    dct:identifier "USGS:5f579a1282cea1f95a61a6cb" ;
    dct:issued "2025-11-21T18:24:15.105969"^^xsd:dateTime ;
    dct:modified "20210203"^^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 "Discharge records and sand extents along the Colorado River between Glen Canyon Dam and Phantom Ranch, Arizona" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Joel B Sankey" ;
            vcard:hasEmail <mailto:jsankey@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/5452bc2a-a9ad-4e2f-a4af-06a20162f0a8/resource/269b6c32-dfb4-4fbf-9598-4b7cf8fbeeea>,
        <https://data.amerigeoss.org/dataset/5452bc2a-a9ad-4e2f-a4af-06a20162f0a8/resource/3846ad1b-663f-419b-8cb1-740dc3da192c> ;
    dcat:keyword "aeolian-sediment-transport",
        "amerigeo",
        "amerigeoss",
        "arizona",
        "bright-angel-creek",
        "ckan",
        "colorado-river",
        "dam-operations",
        "field-inventory-and-monitoring",
        "geo",
        "geoscientificinformation",
        "geoss",
        "glen-canyon-dam",
        "grand-canyon",
        "inlandwaters",
        "land-cover",
        "land-cover-change",
        "land-use-and-land-cover",
        "lees-ferry",
        "marble-canyon",
        "national",
        "north-america",
        "phantom-ranch",
        "regulated-rivers",
        "remote-sensing",
        "river-ecosystems",
        "river-systems",
        "sand-deposits",
        "sediment-transport",
        "unconsolidated-deposits",
        "united-states",
        "usgs-5f579a1282cea1f95a61a6cb" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/5452bc2a-a9ad-4e2f-a4af-06a20162f0a8/resource/269b6c32-dfb4-4fbf-9598-4b7cf8fbeeea> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T21:21:05.368622"^^xsd:dateTime ;
    dct:modified "2025-11-21T18:24:15.089898"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P918E2P3> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/5452bc2a-a9ad-4e2f-a4af-06a20162f0a8/resource/3846ad1b-663f-419b-8cb1-740dc3da192c> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T21:21:05.368615"^^xsd:dateTime ;
    dct:modified "2025-11-21T18:24:15.089471"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5f579a1282cea1f95a61a6cb.xml> ;
    dcat:mediaType "text/xml" .

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