Image data - Landsat

Land application products for Central Africa from OSFAC (Observatoire Satellital des Forêts d'Afrique Centrale). Landsat L1T (terrain corrected) data from the Landsat 7 satellite. The Level 1T (L1T) data product provides systematic radiometric and geometric accuracy by incorporating ground control points, while also employing a Digital Elevation Model (DEM) for topographic accuracy. Geodetic accuracy of the product depends on the accuracy of the ground control points and the resolution of the DEM used. All Landsat 7 scenes collected since May of 2003 have data gaps. Although the scenes have only 78 percent of their pixels, these data are still some of the most geometrically and radiometrically accurate of all civilian satellite data in the world.