@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/289692e3-5e69-40a4-84aa-c2ea7bec5ef7> a dcat:Dataset ;
    dct:description """The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photos or topographic surveys, as well as contemporary sources like lidar point clouds and digital elevation models (DEMs). These shorelines are compiled and analyzed in the Digital Shoreline Analysis System (DSAS) software to compute rates of change. It is useful to keep a record of historical shoreline positions as a method of monitoring change over time to identify areas most susceptible to erosion or accretion.  These data can help coastal managers understand which areas of the coast are vulnerable.
This data release and other associated products represent an expansion of the USGS national-scale shoreline database to include Puerto Rico and its islands, Vieques and Culebra. The United States Geological Survey (USGS) in cooperation with the Coastal Research and Planning Institute of Puerto Rico (CoRePI, part of the Graduate School of  Planning at the University of Puerto Rico, Rio Piedras Campus) has derived and compiled a database of historical shoreline positions using a variety of methods. These shorelines are used to measure the rate of shoreline change over time.""" ;
    dct:identifier "USGS:613f7a90d34e1449c5d35c9e" ;
    dct:issued "2025-11-20T14:36:37.318674"^^xsd:dateTime ;
    dct:modified "20211119"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-67.2715 17.9267, -67.2715 18.5195, -65.2441 18.5195, -65.2441 17.9267, -67.2715 17.9267))"^^gsp:wktLiteral ] ;
    dct:title "2018 Mean High Water Shorelines of the Puerto Rico coast used in Shoreline Change Analysis" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Rachel E. Henderson" ;
            vcard:hasEmail <mailto:rehenderson@contractor.usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/289692e3-5e69-40a4-84aa-c2ea7bec5ef7/resource/cc343a28-1c68-45c9-a291-49951212a4ed>,
        <https://data.amerigeoss.org/dataset/289692e3-5e69-40a4-84aa-c2ea7bec5ef7/resource/f463ed38-a568-4ccd-b04b-5e13734c7fdc> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "atlantic-coast",
        "caribbean",
        "ckan",
        "coastal-and-marine-geology-program",
        "coastal-processes",
        "coastal-research-and-planning-institute-of-puerto-rico",
        "culebra",
        "digital-shoreline-analysis-system",
        "dsas",
        "environment",
        "geo",
        "geoscientificinformation",
        "geospatial-datasets",
        "geoss",
        "mean-high-water",
        "mhw",
        "national",
        "north-america",
        "oceans",
        "puerto-rico",
        "puerto-rico-shoreline-change",
        "shoreline",
        "shoreline-change",
        "u-s-geological-survey",
        "united-states",
        "university-of-puerto-rico",
        "university-of-puerto-rico-graduate-school-of-planning",
        "usgs",
        "usgs-613f7a90d34e1449c5d35c9e",
        "vieques",
        "whcmsc",
        "woods-hole-coastal-and-marine-science-center" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/289692e3-5e69-40a4-84aa-c2ea7bec5ef7/resource/cc343a28-1c68-45c9-a291-49951212a4ed> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:36:25.438765"^^xsd:dateTime ;
    dct:modified "2025-11-20T14:36:37.302234"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9AZYW74> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/289692e3-5e69-40a4-84aa-c2ea7bec5ef7/resource/f463ed38-a568-4ccd-b04b-5e13734c7fdc> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:36:25.438757"^^xsd:dateTime ;
    dct:modified "2025-11-20T14:36:37.301804"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.613f7a90d34e1449c5d35c9e.xml> ;
    dcat:mediaType "text/xml" .

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