GEDI L4B Gridded Aboveground Biomass Density, Version 2
This Global Ecosystem Dynamics Investigation (GEDI) L4B product provides 1 km x 1 km (1 km, hereafter) estimates of mean aboveground biomass density (AGBD) based on observations from mission week 19 starting on 2019-04-18 to mission week 138 ending on 2021-08-04. The GEDI L4A Footprint Biomass product converts each high-quality waveform to an AGBD prediction, and the L4B product uses the sample present within the borders of each 1 km cell to statistically infer mean AGBD. The gridding procedure is described in the GEDI L4B Algorithm Theoretical Basis Document (ATBD). Patterson et al. (2019) describes the hybrid model-based mode of inference used in the L4B product. Corresponding 1 km estimates of the standard error of the mean are also provided in the L4B product. Uncertainty is due to both GEDI's sampling of the 1 km area (as opposed to making wall-to-wall observations) and the fact that L4A biomass values are modeled in a process subject to error instead of measured in a process that may be assumed to be error-free.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Earthdata Forum",
"@type": "vcard:Contact",
"hasEmail": "mailto:earthdata-support@nasa.gov"
}
|
| description | This Global Ecosystem Dynamics Investigation (GEDI) L4B product provides 1 km x 1 km (1 km, hereafter) estimates of mean aboveground biomass density (AGBD) based on observations from mission week 19 starting on 2019-04-18 to mission week 138 ending on 2021-08-04. The GEDI L4A Footprint Biomass product converts each high-quality waveform to an AGBD prediction, and the L4B product uses the sample present within the borders of each 1 km cell to statistically infer mean AGBD. The gridding procedure is described in the GEDI L4B Algorithm Theoretical Basis Document (ATBD). Patterson et al. (2019) describes the hybrid model-based mode of inference used in the L4B product. Corresponding 1 km estimates of the standard error of the mean are also provided in the L4B product. Uncertainty is due to both GEDI's sampling of the 1 km area (as opposed to making wall-to-wall observations) and the fact that L4A biomass values are modeled in a process subject to error instead of measured in a process that may be assumed to be error-free. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (HTML)",
"format": "HTML",
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"downloadURL": "https://daac.ornl.gov/ABOVE/guides/GEDI/guides/GEDI_L4B_Gridded_Biomass.html"
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{
"@type": "dcat:Distribution",
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"downloadURL": "https://doi.org/10.3334/ORNLDAAC/2017"
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|
| identifier | 10.3334/ORNLDAAC/2017 |
| keyword |
[
"earth-science-ecosystems-biosphere-terrestrial-ecosystems",
"earth-science-lidar-spectral-engineering-lidar-waveform",
"earth-science-vegetation-biosphere-biomass"
]
|
| landingPage | https://daac.ornl.gov/ABOVE/guides/GEDI/guides/GEDI_L4B_Gridded_Biomass.html |
| modified | 2026-02-10 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "ORNL_DAAC",
"@type": "org:Organization"
}
|
| spatial |
"[[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":52.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-52.0}],"CARTESIAN"]"
|
| temporal | 2019-04-18/2019-04-18 |
| theme |
[
"Earth Science"
]
|
| title | GEDI L4B Gridded Aboveground Biomass Density, Version 2 |
