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    • AfriSAR: Aboveground Biomass for Lope, Mabounie, Mondah, and Rabi Sites, Gabon

    Metadata Updated: December 7, 2023

    This dataset provides gridded estimates of aboveground biomass (AGB) for four sites in Gabon at 0.25 ha (50 m) resolution derived with field measurements and airborne LiDAR data collected from 2010 to 2016. The sites represent a mix of forested, savannah, and some agricultural and disturbed landcover types: Lope site, within Lope National Park; Mabounie, mostly forested site; Mondah Forest, protected area; and the Rabi forest site, part of the Smithsonian Institution of Global Earth Observatories world-wide network of forest plots. Plot-level biophysical measurements of tree diameter and tree height (or estimated by allometry) were performed at 1 ha and 0.25 ha scales on multiple plots at each site and used to derive AGB for each tree and then summed for each plot. Aerial LiDAR scans were used to construct digital elevation models (DEM) and digital surface models (DSM), and then the DEM and DSM were used to construct a canopy height model (CHM) at 1 m resolution. After checking site-plot locations against the CHM, mean canopy height (MCH) was computed over each 0.25 ha. A single regression model relating MCH and AGB estimates, incorporating local height based on the trunk DBH (HD) relationships, was produced for all sites and combined with the CHM layer to construct biomass maps at 0.25 ha resolution.

    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 July 27, 2023
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Aboveground biomass (AGB) map at 0.25-ha resolution for the Mondah study site. Source: Mabounie_AGB_50m.tif

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 27, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2734261660-ORNL_CLOUD
    Data First Published 2022-11-28
    Language en-US
    Data Last Modified 2023-07-17
    Category AfriSAR, 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 Saatchi, S.S., J. Chave, N. Labriere, N. Barbier, M. Maxime-Rejou, A. Ferraz, and S. Tao. 2019. AfriSAR: Aboveground Biomass for Lope, Mabounie, Mondah, and Rabi Sites, Gabon. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1681
    Graphic Preview Description Aboveground biomass (AGB) map at 0.25-ha resolution for the Mondah study site. Source: Mabounie_AGB_50m.tif
    Graphic Preview File https://daac.ornl.gov/AFRISAR/guides/AfriSAR_AGB_Maps_Fig1.png
    Harvest Object Id bf5db3f8-5e08-4479-add1-724b569da030
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1681
    Metadata Type geospatial
    Old Spatial 9.3 -1.95 11.64 0.61
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash d2376d8a0e13861cd7d9e650e45d547812d9cf9ffb8a27b15fa87fb383234371
    Source Schema Version 1.1
    Spatial
    Temporal 2016-02-01T00:00:00Z/2016-03-31T23:59:59Z

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