{
    "tag": 6242,
    "title": "Polygon shapefiles attributed with morphometric information for barrier islands and spits located along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019",
    "pubdate": "20210812",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P90EQ1H7",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P90EQ1H7\/BarrierPolygons1947to2019_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "A suite of morphological metrics were derived from existing shoreline and elevation datasets for barrier islands and spits located along the north-slope coast of Alaska between Cape Beaufort and the U.S.-Canadian border. This dataset includes barrier polygons attributed with morphological metrics from five time periods: 1950s, 1980s, 2000s, 2010s, and 2020s.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Hamilton, Anna I.",
            "role": "Author"
        },
        {
            "name": "Gibbs, Ann E.",
            "role": "Author"
        },
        {
            "name": "Erikson, Li H.",
            "role": "Author"
        },
        {
            "name": "Engelstad, Anita C.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "1799",
            "name": "coastal processes",
            "scope": "Processes unique to coastal areas including longshore transport, beach erosion, storm surge, shoreline change, delta formation, barrier island migration, beach stabilization by vegetation"
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 23,
            "code": "21",
            "name": "Physical Habitats and Geomorphology",
            "scope": "Includes measures of the geologic and structural characteristics of the coast or sea floor, such as the features defined in the Geoform Component of CMECS. Distributions are detailed topographic and bathymetric maps, geolocated photographs, or sea-floor descriptions; Distributions includes maps that interpret observations to categorize areas on the basis of geoform types such as those in CMECS. Assessment types include evaluations of ecological or human use value and can include models that project environmental or economic effects of erosion, climate change, dredging, and other stressors. Predictions are the results of models or projections of future distributions, values, or ecological impacts of physical habitats, including predicted changes due to natural and human forces; they are also from scenario-based models of resource losses, gains, or impacts on ecological or economic values under different management strategies (for example, mining, removal, relocation, or the building of structures)."
        },
        {
            "thcode": 61,
            "code": "139",
            "name": "barrier island",
            "scope": "an elongate island that is parallel to the shore and separated from the mainland by a bay or lagoon."
        },
        {
            "thcode": 61,
            "code": "58",
            "name": "barrier island migration",
            "scope": "the slow, landward movement of barrier islands in response to sea level rise and repeated storm washover."
        },
        {
            "thcode": 61,
            "code": "222",
            "name": "permafrost",
            "scope": "permanently frozen soil and regolith."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": []
}