{
    "tag": 21101,
    "title": "Transects with long-term (1800s-2010s) shoreline change rate calculations for the contiguous United States compiled from regional analyses",
    "pubdate": "20260522",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P14MTEZ3",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/SB_data_release\/DR_P14MTEZ3\/National_Shoreline_Change_Rates_LT_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "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 elevation 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 important to update and maintain records of historical shoreline positions to allow monitoring of change over time, and to identify areas most susceptible to erosion or accretion. These shoreline change data can help coastal managers identify areas along the shore that are most likely to experience significant change over time. This data release is a compilation of long-term rates of change from multiple USGS publications from 2000-2025 for the contiguous United States. Please see the original previously published USGS shoreline change citations for descriptions of methods and data sources for each dataset.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Henderson, Rachel E.",
            "role": "Author"
        },
        {
            "name": "Kratzmann, Meredith G.",
            "role": "Author"
        },
        {
            "name": "Heslin, Julia L.",
            "role": "Author"
        },
        {
            "name": "Farris, Amy S.",
            "role": "Author"
        },
        {
            "name": "Himmelstoss, Emily A.",
            "role": "Author"
        },
        {
            "name": "Bartlett, Marie K.",
            "role": "Author"
        },
        {
            "name": "Thieler, E. Robert",
            "role": "Author"
        },
        {
            "name": "Weber, Kathryn M.",
            "role": "Author"
        },
        {
            "name": "Lentz, Erika E.",
            "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": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "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": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/6978fe92d4be0269295224a5\/?name=National_Long_Term_coverage.png&allowOpen=true",
            "description": "Map of compiled shoreline change rate transects from 1830-2018 for the contiguous United States"
        }
    ],
    "fan": []
}