LEDAPS is a NASA-funded project to map North American forest disturbance since 1975 from the Landsat
and ASTER satellite data. LEDAPS also produces maps of surface reflectance derived from Landsat imagery to support
a variety of ecosystem studies. LEDAPS is part of NASA's contribution to the North American Carbon Program (NACP), a component of the
USGCRP Carbon Cycle Science Program.
Thank you for visiting the LEDAPS web site. The LEDAPS project has concluded, and this site is no longer actively maintained.
To obtain Landsat-5,7 surface reflectance products processed with LEDAPS atmospheric correction, you may now order them directly from USGS via Earth Explorer:
(select the "Landsat CDR" tab under Data Sets). Landsat-8 surface reflectance products are currently under development through the USGS Landsat Science Team.
To obtain per-scene disturbance maps for the US, please visit North American Forest Dynamics (NAFD) product archive at ORNL DAAC:
To obtain the STAR-FM MODIS/Landsat fusion code and the Automated Registration and Orthorectification Package (AROP), please contact
Dr. Feng Gao, Feng.Gao@ars.usda.gov.
Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid.