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GEDI L4B Gridded Aboveground Biomass Density, Version 2

A newer version exists.

Click the DOI link in the following citation for the latest version (as of 2023-10-29):

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

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/2017
Version2
Project
Published2022-03-29
Usage8435 downloads
Citations10 publications 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 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.

Science Keywords

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

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, and J.R. Kellner. 2022. GEDI L4B Gridded Aboveground Biomass Density, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2017

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Data Files

Access is restricted for GEDI L4B Gridded Aboveground Biomass Density, Version 2. If you have questions about this product, please email the ORNL DAAC User Support Office.

Companion Files

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Dataset has 2 companion files.

  • GEDI_L4B_ATBD_v1.0.pdf
  • GEDI_L4B_Gridded_Biomass.pdf

Additional Resources

TypeTitle
WebinarExplore NASA GEDI Aboveground Biomass Datasets, Services, and Tools at ORNL DAAC

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