Skip to main content


Webinar: Explore NASA GEDI Aboveground Biomass Datasets, Services, and Tools at ORNL DAAC

Speakers: Rupesh Shrestha and Bruce Wilson

Hosted by: NASA EOSDIS and the ORNL DAAC
Date: June 22, 2022
Contact for the ORNL DAAC:

Keywords: biosphere, biomass, canopy characteristics, vegetation, lidar, GEDI


NASA's Global Ecosystem Dynamics Investigation (GEDI) mission has recently released global datasets that provide estimates of aboveground biomass density and associated uncertainty at the footprint (~25 m) and the grid (1 km resolution) level. Mounted on the International Space Station (ISS), the GEDI instrument is a full-waveform lidar designed to measure vegetation and provides the densest sampling of any lidar put on orbit. Since its launch in December 2018, GEDI has captured billions of measurements, providing unprecedented, globally consistent, high-resolution information on vertical forest structures, specifically tropical and temperate forests and woodlands. The canopy information from GEDI shots, combined with coincident airborne lidar and plot-level field inventory, were used to predict aboveground biomass estimates. The new products (Level 4A and Level 4B) along with gridded canopy metrics (Level 3) are archived at NASA's Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) and are freely and openly available.

This webinar provides an overview of the science behind GEDI higher-level data products. We also present tutorials on using various tools and services for data access, analytics, and visualization of GEDI Level 3 and Level 4 data products, followed by a question-and-answer session.

Webinar LinkYouTube

Presentation SlidesPDF


Dubayah, R.O., S.B. Luthcke, T.J. Sabaka, J.B. Nicholas, S. Preaux, and M.A. Hofton. 2021. GEDI L3 Gridded Land Surface Metrics, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA.

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.

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.


Tutorials on GEDI Science Data Products

Related Learning Resources

More tutorials related to ORNL DAAC data and web services can be found on the ORNL DAAC's Learning page.