Goals: The goal of this project is to build on the previously funded work of Kyle Cavanaugh to complete the atmospheric corrections to the LTER Landsat catalog. Atmospheric corrections are required before any higher level data products (e.g. maps of land cover change, biomass, NDVI) can be created. The corrected scenes can then be used by LTER researchers to work on a consistent approach to further analysis of change detection, land cover classifications, and biomass calculations across LTER sites. This was the highest priority identified by the LTER Spatial Data and Analysis Ad-Hoc Committee at the 2012 All Scientist Meeting.