Imaging · dataset · 2025
GEDI L4B Gridded Aboveground Biomass Density, Version 2
Listed in NASA Data Portal
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.
Description
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.
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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.
Links
Get the data
- Resource doi.org/10.3334/ornldaac/2017 ↗
download · DOI / persistent id · from data nasa gov
- PNG daac.ornl.gov/graphics/browse/project/square/gedi_logo_square.png ↗
download · from data nasa gov
- Resource gedi.umd.edu ↗
download · from data nasa gov
- PDF data.ornldaac.earthdata.nasa.gov/public/gedi/GEDI_L4B_Gridded_Biomass/comp/GEDI_L4B_Gridded_Bio… ↗
download · from data nasa gov
- PDF data.ornldaac.earthdata.nasa.gov/public/gedi/GEDI_L4B_Gridded_Biomass/comp/GEDI_L4B_ATBD_v1.0.p… ↗
download · from data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3495301474-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- Resource daac.ornl.gov/ABOVE/guides/GEDI/guides/GEDI_L4B_Gridded_Biomass.html ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/gedi-l4b-gridded-aboveground-biomass-density-version-2 ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=ba088a87-f768-436a-8498-9a1ec670e… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | ba088a87-f768-436a-8498-9a1ec670e049 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |