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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

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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