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.
Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid.