@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/0b76cca0-d0af-49ac-a20e-1543c3a5f696> a dcat:Dataset ;
    dct:description "This portion of the data release presents the locations of the temporary ground control points (GCPs) used for the structure-from-motion (SfM) processing of the imagery collected during the Unmanned Aerial System (UAS) survey on of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta on 2018-10-23. The GCPs were used to establish ground control for the survey and consisted of 24 small (80 x 80 centimeter) square tarps with black-and-white cross patterns placed on the ground surface throughout the mapping area during the survey. The GCP positions were measured using RTK GPS, with corrections from a GPS base station located approximately 3 kilometers south of the study area. The GCP positions are presented in a comma-delimited text file." ;
    dct:identifier "USGS:5f24b3e582cef313ed979696" ;
    dct:issued "2025-11-19T23:00:42.470417"^^xsd:dateTime ;
    dct:modified "20201019"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-121.6755 38.3260, -121.6755 38.3358, -121.6677 38.3358, -121.6677 38.3260, -121.6755 38.3260))"^^gsp:wktLiteral ] ;
    dct:title "Ground control point locations for UAS survey of the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, 2018-10-23" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "PCMSC Science Data Coordinator" ;
            vcard:hasEmail <mailto:pcmsc_data@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/0b76cca0-d0af-49ac-a20e-1543c3a5f696/resource/16e5c12b-81f0-4319-a064-47c774b45dd1>,
        <https://data.amerigeoss.org/dataset/0b76cca0-d0af-49ac-a20e-1543c3a5f696/resource/f742c4e3-4ec8-45b6-931b-76295c16aba4> ;
    dcat:keyword "aerial-photography",
        "altimetry",
        "amerigeo",
        "amerigeoss",
        "bathymetry-and-elevation",
        "cache-slough",
        "chmrp",
        "ckan",
        "coastal-and-marine-hazards-and-resources-program",
        "elevation",
        "fragile-ecosystems",
        "geo",
        "geomorphology",
        "geoscientificinformation",
        "geospatial-datasets",
        "geoss",
        "image-mosaics",
        "liberty-island",
        "national",
        "north-america",
        "pacific-coastal-and-marine-science-center",
        "pcmsc",
        "photography",
        "remote-sensing",
        "sacramento-river",
        "sacramento-river-deep-water-ship-channel",
        "sacramento-san-joaquin-delta",
        "san-joaquin-river",
        "state-of-california",
        "structure-from-motion",
        "topographic-maps",
        "topography",
        "u-s-geological-survey",
        "uas",
        "united-states",
        "unmanned-aerial-system",
        "usgs",
        "usgs-5f24b3e582cef313ed979696",
        "wetland-restoration" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/0b76cca0-d0af-49ac-a20e-1543c3a5f696/resource/16e5c12b-81f0-4319-a064-47c774b45dd1> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:59:46.017744"^^xsd:dateTime ;
    dct:modified "2025-11-19T23:00:42.450989"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5f24b3e582cef313ed979696.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/0b76cca0-d0af-49ac-a20e-1543c3a5f696/resource/f742c4e3-4ec8-45b6-931b-76295c16aba4> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:59:46.017754"^^xsd:dateTime ;
    dct:modified "2025-11-19T23:00:42.451453"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9GF8R1M> ;
    dcat:mediaType "application/http" .

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