@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/111d3d37-2f5c-42af-be3d-246bf57fae6a> a dcat:Dataset ;
    dct:description "Low-altitude (30-120 meters above ground level) digital images of Town Neck Beach in Sandwich, Massachusetts, were obtained with a series of cameras mounted on small unmanned aerial systems (UAS, also known as a drone). Imagery was collected at close to low tide on five days to observe changes in beach and dune morphology. The images were geolocated by using the single-frequency geographic positioning system aboard the UAS. Ground control points (GCPs) were established by using temporary targets on the ground, which were located by using a real-time kinematic global navigation satellite system (RTK-GNSS) base station and rovers. The GCPs can be used as constraints during photogrammetric processing. Transect points were collected by using the same RTK-GNSS system; these can be used to evaluate photogrammetric products. This data release includes georeferenced images, image-location files, GCPs, and transect points. Collection of these data was supported by the U.S. Geological Survey Coastal/Marine Hazards and Resources Program and conducted under U.S. Geological Survey field activity numbers 2016-013-FA, 2016-043-FA, 2016-053-FA, 2016-054-FA and 2016-055-FA." ;
    dct:identifier <http://datainventory.doi.gov/id/dataset/usgs-5d039640e4b0e3d311567fff> ;
    dct:issued "2025-09-23T21:31:38.346069"^^xsd:dateTime ;
    dct:modified "2022-07-07T00:00:00+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-70.4886 41.7610, -70.4886 41.7712, -70.4736 41.7712, -70.4736 41.7610, -70.4886 41.7610))"^^gsp:wktLiteral ] ;
    dct:title "Geotagged Low-Altitude Aerial Imagery From Unmanned Aerial System Flights Over Town Neck Beach, in Sandwich, Massachusetts, on September 21, 2016" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Christopher Sherwood" ;
            vcard:hasEmail <mailto:csherwood@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/111d3d37-2f5c-42af-be3d-246bf57fae6a/resource/6e57eaa4-8546-46ed-8433-57dc72401bea>,
        <https://data.amerigeoss.org/dataset/111d3d37-2f5c-42af-be3d-246bf57fae6a/resource/d0feea7a-8039-45c4-8a1f-86ba76230a7f> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "aerial-and-satellite-photography",
        "aerial-imagery",
        "aerial-photography",
        "airshark",
        "cmgp",
        "coastal-and-marine-geology-program",
        "coastal-marine-hazards-and-resources-program",
        "elevation",
        "field-activity-number-2016-043-fa",
        "geoscientificinformation",
        "geotagged-photos",
        "image-collections",
        "jpeg",
        "location",
        "low-altitude-aerial-imagery",
        "massachusetts",
        "oceans",
        "photographs",
        "photos",
        "remote-sensing",
        "sandwich",
        "shoreline",
        "shoreline-photographs",
        "sony-nex5r",
        "town-neck-beach",
        "u-s-geological-survey",
        "uas",
        "unmanned-aerial-system",
        "usa",
        "usgs",
        "usgs-5d039640e4b0e3d311567fff",
        "whcmsc",
        "woods-hole-coastal-and-marine-science-center" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/111d3d37-2f5c-42af-be3d-246bf57fae6a/resource/6e57eaa4-8546-46ed-8433-57dc72401bea> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2025-09-14T08:14:26.218367"^^xsd:dateTime ;
    dct:modified "2025-09-23T21:31:38.304698"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9CJOMBM> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/111d3d37-2f5c-42af-be3d-246bf57fae6a/resource/d0feea7a-8039-45c4-8a1f-86ba76230a7f> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2025-09-17T04:39:05.387382"^^xsd:dateTime ;
    dct:modified "2025-09-23T21:31:38.303293"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5d039640e4b0e3d311567fff.xml> ;
    dcat:mediaType "text/xml" .

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