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    • Delta-X: Digital Elevation Model, MRD, LA, USA, 2021

    Metadata Updated: December 7, 2023

    This dataset provides an updated digital elevation model (DEM) for the Atchafalaya and Terrebonne basins in coastal Louisiana, USA. The DEM is updated from the Pre-Delta-X DEM and extended to the full Delta-X study area. This DEM was developed from multiple data sources, including sonar data collected during Pre-Delta-X and Delta-X campaigns, bathymetric data from the Coastal Protection and Restoration Authority System-Wide Assessment and Monitoring System (CPRA SWAMP), and NOAA, and topography from the National Elevation Dataset and LiDAR from US Geological Survey (USGS). The provided data layers include the DEM, a binary water/land mask, data source flags, and eight layers with analysis weighting factors for each pixel. Elevation values are provided in meters with respect to the North American Vertical Datum of 1988 (NAVD88). The weighting factors indicate how each data source contributed to this multisource DEM. The data are provided in cloud-optimized GeoTIFF (CoG) format.

    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 October 11, 2023
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Digital elevation model (DEM) for the Atchafalaya and Terrebonne Basins in Louisiana, USA.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 11, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2776378726-ORNL_CLOUD
    Data First Published 2023-09-29
    Language en-US
    Data Last Modified 2023-10-02
    Category Delta-X, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/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
    Citation Christensen, A.L., M.W. Denbina, and M. Simard. 2023. Delta-X: Digital Elevation Model, MRD, LA, USA, 2021. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2181
    Graphic Preview Description Digital elevation model (DEM) for the Atchafalaya and Terrebonne Basins in Louisiana, USA.
    Graphic Preview File https://daac.ornl.gov/DELTAX/guides/DeltaX_DEM_MRD_LA_Fig1.jpg
    Harvest Object Id 85fa45dd-b914-4dbd-80d8-6acc4cff2885
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2181
    Metadata Type geospatial
    Old Spatial -91.91 28.97 -90.15 29.96
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 4c0938c90c13140533cf92f44eec58ddd8e453940111940c692439b073922406
    Source Schema Version 1.1
    Spatial
    Temporal 2012-01-01T00:00:00Z/2021-12-31T23:59:59Z

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