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    • Aboveground Biomass High-Resolution Maps for Selected US Tidal Marshes, 2015

    Metadata Updated: December 6, 2023

    This dataset provides maps of aboveground tidal marsh biomass (g/m2) at 30 m resolution for six estuarine regions of the conterminous United States: Cape Cod, MA; Chesapeake Bay, MD, Everglades, FL; Mississippi Delta, LA; San Francisco Bay, CA; and Puget Sound, WA. Estuarine and palustrine emergent tidal marsh areas were based on a 2010 NOAA Coastal Change Analysis Program (C-CAP) map. Aboveground biomass maps were generated from a random forest model driven by Landsat vegetation indices and a national scale dataset of field-measured aboveground biomass. The final model, driven by six Landsat vegetation indices, with the soil adjusted vegetation index as the most important, successfully predicted biomass for a range of marsh plant functional types defined by height, leaf angle, and growth form. Biomass can be converted to carbon stocks using a mean plant carbon content of 44.1%.

    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 December 1, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    The largest present-day amount of tidal vegetation biomass were found across the Terrebonne and St. Mary Parishes of the Mississippi River Delta in Louisiana. (Source Louisiana_biomass_2015.tif)

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2345876612-ORNL_CLOUD
    Data First Published 2021-03-22
    Language en-US
    Data Last Modified 2023-06-12
    Category CMS, 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 Byrd, K.B., L. Ballanti, N. Thomas, D. Nguyen, J.R. Holmquist, M. Simard, and L. Windham-Myers. 2021. Aboveground Biomass High-Resolution Maps for Selected US Tidal Marshes, 2015. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1879
    Graphic Preview Description The largest present-day amount of tidal vegetation biomass were found across the Terrebonne and St. Mary Parishes of the Mississippi River Delta in Louisiana. (Source Louisiana_biomass_2015.tif)
    Graphic Preview File https://daac.ornl.gov/CMS/guides/Tidal_Marsh_Biomass_US_V1-1_Fig1.jpg
    Harvest Object Id d1b81fa5-ccbe-4742-b443-f3d5579a94fa
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1879
    Metadata Type geospatial
    Old Spatial -122.73 25.09 -69.93 47.12
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 44f2ead4b9ba2fdf358cc331a9289d615ffafe781dbbfb1f04f12c1a5dcbadb7
    Source Schema Version 1.1
    Spatial
    Temporal 2015-08-01T00:00:00Z/2015-09-01T23:59:59Z

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