@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/0e4c4b54-da4e-4f1b-8687-d66333d3c0fd> a dcat:Dataset ;
    dct:description "This dataset is a LAS (industry-standard binary format for storing lidar point clouds) dataset containing light detection and ranging (lidar) data and sonar data representing the beach and near-shore topography of Lake Superior at Minnesota Point, near the Duluth entry, Duluth, Minnesota. Average point spacing of the LAS files in the dataset are as follows:  lidar, 0.094 meters (m); multibeam sonar, 0.501 m; single-beam sonar, 1.876 m. The LAS dataset was used to create digital elevation models (DEMs) of 10 m (32.8084 feet) and 1 m (3.28084 feet) resolution, of the approximate 1.75 square kilometer surveyed area. Lidar data were collected August 22, 2022 using a boat mounted Velodyne VLP-16 unit and methodology similar to that described by Huizinga and Wagner (2019). Multibeam sonar data were collected August 22-23, 2022 using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit and methodology similar to that described by Richards and Huizinga (2018). Single-beam sonar data were collected August 23, 2022 using a Ceescope echosounder and methodology similar to that described by Wilson and Richards (2006).This project followed similar methods to that of Wagner, Lund, and Sanks (2020), who completed a similar survey in 2019." ;
    dct:identifier <http://datainventory.doi.gov/id/dataset/usgs-64b52fefd34e70357a2adc06> ;
    dct:issued "2025-09-23T20:02:43.386511"^^xsd:dateTime ;
    dct:modified "2024-09-12T00:00:00+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-92.0922 46.7626, -92.0922 46.7840, -92.0702 46.7840, -92.0702 46.7626, -92.0922 46.7626))"^^gsp:wktLiteral ] ;
    dct:title "LAS dataset of lidar, single-beam and multibeam sonar data collected at Lake Superior at Minnesota Point near the Duluth Entry, Duluth, MN, August 2022" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Jenny L Hanson" ;
            vcard:hasEmail <mailto:jhanson@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/0e4c4b54-da4e-4f1b-8687-d66333d3c0fd/resource/10a435d3-c397-45ab-a08c-ad800c58ddb1>,
        <https://data.amerigeoss.org/dataset/0e4c4b54-da4e-4f1b-8687-d66333d3c0fd/resource/bdb50a2c-29bc-4c56-9b03-e2d439a4aa5d> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "bathymetry",
        "bathymetry-and-elevation",
        "dem",
        "digital-elevation-models",
        "duluth",
        "elevation",
        "great-lakes",
        "hydroacoustic",
        "inlandwaters",
        "lake-superior",
        "las",
        "lidar",
        "limnology",
        "sonar",
        "southwestern-lake-superior",
        "superior",
        "usgs-64b52fefd34e70357a2adc06",
        "xyz" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/0e4c4b54-da4e-4f1b-8687-d66333d3c0fd/resource/10a435d3-c397-45ab-a08c-ad800c58ddb1> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2025-09-12T21:32:17.480260"^^xsd:dateTime ;
    dct:modified "2025-09-23T20:02:43.360767"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9Q27BD3> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/0e4c4b54-da4e-4f1b-8687-d66333d3c0fd/resource/bdb50a2c-29bc-4c56-9b03-e2d439a4aa5d> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2025-09-15T16:30:56.997932"^^xsd:dateTime ;
    dct:modified "2025-09-23T20:02:43.361542"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.64b52fefd34e70357a2adc06.xml> ;
    dcat:mediaType "text/xml" .

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