The ORNL DAAC announces the release of an image data set from the Land Use and Land Cover science theme, a component of the LBA-ECO Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA).
LBA-ECO LC-21 Selective Logging Activity in the Brazilian Amazon: 1999-2002 . Data set prepared by G.P. Asner, D.E. Knapp, E.N. Broadbent, P.J.C. Oliveira, M.M. Keller, and J.N.M. Silva. This data set provides the results of analyses of Landsat Enhanced Thematic Mapper Plus (ETM+) images for selective logging activity in the major timber-production states of Para, Mato Gross, Rondonia, Roraima, and Acre, Brazil, over the years 1999 through 2001. The images were analyzed using the Carnegie Landsat Analysis System (CLAS), which provides detailed measurements of forest-canopy damage at a spatial resolution of 30 x 30 m.
LBA was an international research initiative under the leadership of Brazil. The project focused on the climatological, ecological, biogeochemical, and hydrological functions of Amazonia; the impact of land use change on these functions; and the interactions between Amazonia and the Earth system. The LBA-ECO component, which was funded by NASA, focused on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia? "
The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data.