{
    "tag": 20195,
    "title": "North Carolina Dune Condition Codes",
    "pubdate": "20260310",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/NC_Dune_Condition_Codes_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "The U.S. Geological Survey (USGS) supports multiple efforts to understand and predict storm impacts to our nation\u2019s coastlines. The geospatial dataset (vector feature class) and comma-delimited American Standard Code for Information Interchange (ASCII) table describes the changes in the elevation and cross-shore position of the modern foredune crest from September 1997 to October 2018 across the North Carolina ocean-fronted coastline, as well as infrastructure distance, beach width, and total water level (TWL) elevation information. Results are provided as points at an alongshore resolution of 500 meters (m) and describe the dune crest elevation (classified as \u2018low\u2019, \u2018moderate\u2019, or \u2018high\u2019), the dune crest elevation trend (classified as \u2018eroding\u2019, \u2018no net change\u2019, or \u2018accreting\u2019), and the dune crest migration trend (classified as \u2018landward\u2019, \u2018no net change\u2019, or \u2018seaward\u2019). The cross-shore distance between the dune crest and line of first infrastructure at the end of the study period, average beach width, and 98% quantile total water level elevation for the study period are also provided. Individual dune condition code positions (points) represent the center of an alongshore \u201cbin\u201d and describe coastal trends within 250 m alongshore on either side of the point. An ArcGIS Pro Map Package file is also included, which displays dune condition code and time series features with specific symbology and graphing schema that aid the user in interpreting and visualizing some of the most important attributes in the data. The methods used to generate this data followed the process outlined in \u201cDecadal-scale characteristics of natural and anthropogenic dune morphology along North Carolina barrier islands (SE Atlantic coast)\u201d by Seymour and others (2026).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Seymour, Alexander C.",
            "role": "Author"
        },
        {
            "name": "Doran, Kara S.",
            "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": "353",
            "name": "erosion",
            "scope": "The process whereby materials of the earth's crust are loosened, dissolved, or worn away and simultaneously moved from one place to another."
        },
        {
            "thcode": 2,
            "code": "398",
            "name": "floods",
            "scope": "Relatively high water that overflows the natural or artificial banks of a stream or coastal area that submerges land not normally below water level."
        },
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 2,
            "code": "531",
            "name": "hazards",
            "scope": "Potential dangers from both natural processes (e.g., earthquakes, floods, and climate change) and human impacts on the environment."
        },
        {
            "thcode": 2,
            "code": "706",
            "name": "marine geology",
            "scope": "Branch of geology concerned with the composition, geologic history, and earth processes of the ocean floor and the continental margin."
        },
        {
            "thcode": 2,
            "code": "818",
            "name": "ocean sciences",
            "scope": "Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."
        },
        {
            "thcode": 2,
            "code": "1172",
            "name": "time series datasets",
            "scope": "Digital information describing observations taken at specified time intervals.  The time interval may be regular or variable; the type of observed phenomena and the location are typically constant."
        },
        {
            "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"
        },
        {
            "thcode": 15,
            "code": "017",
            "name": "structure",
            "scope": "Man-made construction, for example buildings, museums, churches, factories, housing, monuments, shops, towers, building footprints, architectural and structural plans"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": []
}