GEDI L4B Gridded Aboveground Biomass Density, Version 2.1

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 223 ending on 2023-03-16. 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.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2299
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/gedi/GEDI_L4B_Gridded_Biomass_V2_1/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/GEDI/guides/GEDI_L4B_Gridded_Biomass_V2_1.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2299
34 Gridded mean aboveground biomass density (top) and standard error of the mean (bottom). https://daac.ornl.gov/GEDI/guides/GEDI_L4B_Gridded_Biomass_V2_1_Fig1.png
33 GEDI L4B Gridded Aboveground Biomass Density, Version 2.1: GEDI_L4B_ATBD_V2.0.pdf https://data.ornldaac.earthdata.nasa.gov/public/gedi/GEDI_L4B_Gridded_Biomass_V2_1/comp/GEDI_L4B_ATBD_V2.0.pdf
23 GEDI L4B Gridded Aboveground Biomass Density, Version 2.1: gedi_l4b_excluded_granules_v21.json https://data.ornldaac.earthdata.nasa.gov/public/gedi/GEDI_L4B_Gridded_Biomass_V2_1/comp/gedi_l4b_excluded_granules_v21.json
33 GEDI L4B Gridded Aboveground Biomass Density, Version 2.1: GEDI_L4B_Gridded_Biomass_V2_1.pdf https://data.ornldaac.earthdata.nasa.gov/public/gedi/GEDI_L4B_Gridded_Biomass_V2_1/comp/GEDI_L4B_Gridded_Biomass_V2_1.pdf
21 GEDI Project Site https://gedi.umd.edu

Tags

  • ecosystems
  • biosphere
  • spectral-engineering
  • vegetation
  • lidar
  • earth-science

Topics

Categories