@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/1e8712ff-1866-453e-a81d-1d69d8ac98db> a dcat:Dataset ;
    dct:description "This portion of the data release presents a high-resolution orthomosaic image of the intertidal zone at Lone Tree Point, Kiket Bay, WA. The orthomosaic has a resolution of 2 centimeters per pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-05. The raw imagery used to create the orthomosaic was acquired using a UAS fitted with a Ricoh GR II digital camera featuring a global shutter. The UAS was flown on pre-programmed autonomous flight lines spaced to provide approximately 70 percent overlap between images from adjacent lines. The camera was triggered at 1 Hz using a built-in intervalometer. The UAS was flown at an approximate altitude of 70 meters above ground level (AGL), resulting in a nominal ground-sample-distance (GSD) of 1.8 centimeters per pixel. The raw imagery was geotagged using positions from the UAS onboard single-frequency autonomous GPS. Eighteen temporary ground control points (GCPs) were distributed throughout the survey area to establish survey control. The GCPs consisted of a combination of small square tarps with black-and-white cross patterns and \"X\" marks placed on the ground using temporary chalk. The GCP positions were measured using post-processed kinematic (PPK) GPS, using corrections from a GPS base station located approximately 16 kilometers from the study area. The orthomosaic image is provided in a three-band RGB format, with 8-bit unsigned integer values compressed using high-quality JPEG compression. The image has been formatted as a cloud optimized GeoTIFF with internal overviews and masks to facilitate cloud-based queries and display." ;
    dct:identifier "USGS:5ef5226682ced62aaae6a011" ;
    dct:issued "2025-11-20T08:50:06.356951"^^xsd:dateTime ;
    dct:modified "20210915"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-122.5565 48.4042, -122.5565 48.4121, -122.5519 48.4121, -122.5519 48.4042, -122.5565 48.4042))"^^gsp:wktLiteral ] ;
    dct:title "Orthomosaic imagery for the intertidal zone at Lone Tree Point, Kiket Bay, WA, 2019-06-05" ;
    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/1e8712ff-1866-453e-a81d-1d69d8ac98db/resource/e34588dc-52f6-46ce-a7a6-409eaaa2d77e>,
        <https://data.amerigeoss.org/dataset/1e8712ff-1866-453e-a81d-1d69d8ac98db/resource/e407f18b-f722-491f-a8fa-99daf7aec954> ;
    dcat:keyword "aerial-and-satellite-photography",
        "aerial-photography",
        "altimetry",
        "amerigeo",
        "amerigeoss",
        "bathymetry-and-elevation",
        "chmrp",
        "ckan",
        "coastal-and-marine-hazards-and-resources-program",
        "coastal-processes",
        "elevation",
        "geo",
        "geomorphology",
        "geoscientificinformation",
        "geospatial-datasets",
        "geoss",
        "image-mosaics",
        "kiket-bay",
        "lone-tree-point",
        "national",
        "north-america",
        "orthophotography",
        "pacific-coastal-and-marine-science-center",
        "pcmsc",
        "photography",
        "remote-sensing",
        "salish-sea",
        "sfm",
        "skagit-bay",
        "skagit-county",
        "state-of-washington",
        "structure-from-motion",
        "swinomish-reservation",
        "topographic-maps",
        "topography",
        "u-s-geological-survey",
        "uas",
        "united-states",
        "unmanned-aerial-system",
        "usgs",
        "usgs-5ef5226682ced62aaae6a011" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/1e8712ff-1866-453e-a81d-1d69d8ac98db/resource/e34588dc-52f6-46ce-a7a6-409eaaa2d77e> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:06:26.205315"^^xsd:dateTime ;
    dct:modified "2025-11-20T08:50:06.336645"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5ef5226682ced62aaae6a011.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/1e8712ff-1866-453e-a81d-1d69d8ac98db/resource/e407f18b-f722-491f-a8fa-99daf7aec954> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:06:26.205322"^^xsd:dateTime ;
    dct:modified "2025-11-20T08:50:06.337056"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9TO24SR> ;
    dcat:mediaType "application/http" .

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