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    • 30-m Topographic Wetness Index

    Metadata Updated: October 23, 2025

    The lidar Topographic Wetness Index (TWI) is the TWI data product produced and distributed by the National Park Service, Great Smoky Mountains National Park. Concave, low gradient areas will gather water (low TWI values), whereas steep, convex areas will shed water (high TWI values). Values range range from less than 1 (dry cells) to greater than 20 (wet cells).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date September 12, 2025
    Metadata Updated Date October 23, 2025

    Metadata Source

    Harvested from DOI NPS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 12, 2025
    Metadata Updated Date October 23, 2025
    Publisher National Park Service
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/nps-datastore-2208650
    Data First Published 2014-03-17T00:00:00Z
    Data Last Modified 2014-03-17T00:00:00Z
    Category Raster Dataset
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/nps-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id e407ccf7-6eb5-4a60-83bb-a7decbc83228
    Harvest Source Id d917c1a9-26b7-43ea-b8c5-c77ec750a850
    Harvest Source Title DOI NPS DCAT-US
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2208650
    Old Spatial -84.02396,35.4183655,-82.99266,35.84451
    Program Code 010:119, 010:118
    Source Datajson Identifier True
    Source Hash 91f41fd9350c3a1e593f46c1894e5336ba43af4d66dfbcda65f8b2bbadd12ea8
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -84.02396, 35.4183655, -84.02396, 35.84451, -82.99266, 35.84451, -82.99266, 35.4183655, -84.02396, 35.4183655}

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