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GEDI L4B Gridded Aboveground Biomass Density, Version 2.1

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/2299
Version2.1
Project
Published2023-10-29
Usage842 downloads
Citations1 publication cited this dataset

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.

Science Keywords

  • BIOSPHERE
  • ECOSYSTEMS
  • TERRESTRIAL ECOSYSTEMS
  • SPECTRAL/ENGINEERING
  • LIDAR
  • LIDAR WAVEFORM
  • BIOSPHERE
  • VEGETATION
  • BIOMASS

Data Use and Citation

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Crosscite Citation Formatter
Dubayah, R.O., J. Armston, S.P. Healey, Z. Yang, P.L. Patterson, S. Saarela, G. Stahl, L. Duncanson, J.R. Kellner, J. Bruening, and A. Pascual. 2023. GEDI L4B Gridded Aboveground Biomass Density, Version 2.1. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2299

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.

Data Files

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Companion Files

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Dataset has 3 companion files.

  • GEDI_L4B_ATBD_V2.0.pdf
  • gedi_l4b_excluded_granules_v21.json
  • GEDI_L4B_Gridded_Biomass_V2_1.pdf

Version History

VersionDataset TitlePublished
2GEDI L4B Gridded Aboveground Biomass Density, Version 22022-03-29
2.1GEDI L4B Gridded Aboveground Biomass Density, Version 2.12023-10-29