Start Date
15-4-2024 3:45 PM
End Date
15-4-2024 5:00 PM
Access Type
Open Access
Abstract
As our planet heats up, tracking changes in forest aboveground biomass density (AGB, Mg ha-1) at large scales is an increasingly pressing concern and one addressed primarily using space-based remote sensing. The European Space Agency hosted its 4th Carbon from Space Workshop in October 2022; NASA launched the Global Ecosystem Dynamics Investigation (GEDI) lidar to the International Space Station in 2018; and the NASA-ISRO SAR (NISAR) and ESA BIOMASS radar missions will launch in 2024. However, the record from SAR and lidar is limited and sporadic. Here, AGB estimates obtained using 672 nm (red) band reflectance data from the Multiangle Imaging Spectro-Radiometer (MISR) and from the GEDI spaceborne lidar mission are compared with those from NASA Carbon Monitoring System airborne lidar surveys for sites in California. MISR and GEDI 1 km AGB estimates are highly compatible with those from the CMS surveys (all sites: both yield R2 = ~0.7, RMSE = 57 Mg ha-1; Sonoma Co: MISR, GEDI R2 = 0.87, 0.88, RMSE= 58, 40 Mg ha-1), so MISR performs almost as well as GEDI – but the annual wall-to-wall MISR 250 m map series extends across the southwestern U.S. and back to the year 2000.
Biography
Mark Chopping (Ph.D. University of Nottingham, 1998, M.Phil. University of Cambridge, 1995) pursues research in applications of multiangle remote sensing data to mapping vegetation canopy type, structure, and biomass. He has worked in arid and semi-arid environments in Inner Mongolia and the United States, and more recently in Arctic tundra. He has been a NASA Principal Investigator since 2003.
Additional Links
ORCID
Forest Biomass with the NASA, JPL MISR: Validation with NASA Lidar-Derived Estimates
As our planet heats up, tracking changes in forest aboveground biomass density (AGB, Mg ha-1) at large scales is an increasingly pressing concern and one addressed primarily using space-based remote sensing. The European Space Agency hosted its 4th Carbon from Space Workshop in October 2022; NASA launched the Global Ecosystem Dynamics Investigation (GEDI) lidar to the International Space Station in 2018; and the NASA-ISRO SAR (NISAR) and ESA BIOMASS radar missions will launch in 2024. However, the record from SAR and lidar is limited and sporadic. Here, AGB estimates obtained using 672 nm (red) band reflectance data from the Multiangle Imaging Spectro-Radiometer (MISR) and from the GEDI spaceborne lidar mission are compared with those from NASA Carbon Monitoring System airborne lidar surveys for sites in California. MISR and GEDI 1 km AGB estimates are highly compatible with those from the CMS surveys (all sites: both yield R2 = ~0.7, RMSE = 57 Mg ha-1; Sonoma Co: MISR, GEDI R2 = 0.87, 0.88, RMSE= 58, 40 Mg ha-1), so MISR performs almost as well as GEDI – but the annual wall-to-wall MISR 250 m map series extends across the southwestern U.S. and back to the year 2000.