Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > NASA Projects > Global Ecosystem Dynamics Investigation (GEDI) > Landing page

GEDI L4A Footprint Level Aboveground Biomass Density, Version 1

A newer version exists.

Click the DOI link in the following citation for the latest version (as of 2022-03-17):

Dubayah, R.O., J. Armston, J.R. Kellner, L. Duncanson, S.P. Healey, P.L. Patterson, S. Hancock, H. Tang, J. Bruening, M.A. Hofton, J.B. Blair, and S.B. Luthcke. 2022. GEDI L4A Footprint Level Aboveground Biomass Density, Version 2.1. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2056

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1907
Version1
Project
Published2021-08-19
Updated2022-02-14
Usage1270 downloads

Description

This dataset contains Global Ecosystem Dynamics Investigation (GEDI) Level 4A (L4A) predictions of the aboveground biomass density (AGBD; in Mg/ha) and estimates of the prediction standard error within each sampled geolocated laser footprint. The footprints are located within the global latitude band observed by the International Space Station (ISS), nominally 51.6 degrees N and S and reported for the period 2019-04-18 to 2020-09-02. The GEDI instrument consists of three lasers producing a total of eight beam ground transects, which instantaneously sample eight ~25 m footprints spaced approximately every 60 m along-track. The GEDI beam transects are spaced approximately 600 m apart on the Earth's surface in the cross-track direction, for an across-track width of ~4.2 km. Footprint AGBD was derived from parametric models that relate simulated GEDI Level 2A (L2A) waveform relative height (RH) metrics to field plot estimates of AGBD. Height metrics from simulated waveforms associated with field estimates of AGBD from multiple regions and plant functional types (PFT) were compiled to generate a calibration dataset for models representing the combinations of world regions and PFTs (i.e., deciduous broadleaf trees, evergreen broadleaf trees, evergreen needleleaf trees, deciduous needleleaf trees, and the combination of grasslands, shrubs, and woodlands).

Science Keywords

  • SPECTRAL/ENGINEERING
  • LIDAR
  • LIDAR WAVEFORM
  • BIOSPHERE
  • VEGETATION
  • EVERGREEN VEGETATION
  • BIOSPHERE
  • VEGETATION
  • DECIDUOUS VEGETATION
  • BIOSPHERE
  • VEGETATION
  • CANOPY CHARACTERISTICS
  • BIOSPHERE
  • VEGETATION
  • BIOMASS
  • BIOSPHERE
  • ECOSYSTEMS
  • TERRESTRIAL ECOSYSTEMS
  • SHRUBLAND/SCRUB
  • BIOSPHERE
  • ECOSYSTEMS
  • TERRESTRIAL ECOSYSTEMS
  • FORESTS
  • BIOSPHERE
  • ECOSYSTEMS
  • TERRESTRIAL ECOSYSTEMS
  • GRASSLANDS

Data Use and Citation

Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter
Dubayah, R.O., J. Armston, J.R. Kellner, L. Duncanson, S.P. Healey, P.L. Patterson, S. Hancock, H. Tang, M.A. Hofton, J.B. Blair, and S.B. Luthcke. 2021. GEDI L4A Footprint Level Aboveground Biomass Density, Version 1. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1907

See our Data Use and Citation Policy for more information.

Data Files

Access is restricted for GEDI L4A Footprint Level Aboveground Biomass Density, Version 1. If you have questions about this product, please contact the ORNL DAAC User Support Office.

Companion Files

Toggle Companion Files

Sign in to download files.

Dataset has 3 companion files.

  • GEDI_L4A_Common_Queries.pdf
  • GEDI_ATBD_L4A_v1.0.pdf
  • GEDI_L4A_Product_Data_Dictionary.pdf

Additional Resources

TypeTitle
TutorialTutorials on GEDI Science Data Products

Version History

VersionDataset TitlePublished
1GEDI L4A Footprint Level Aboveground Biomass Density, Version 12021-08-19
2GEDI L4A Footprint Level Aboveground Biomass Density, Version 22021-12-15
1.1GEDI L4A Footprint Level Aboveground Biomass Density, Golden Weeks, Version 12022-02-14
2.1GEDI L4A Footprint Level Aboveground Biomass Density, Version 2.12022-03-17