ATCOR® Software Versions
Overview | Examples | Alternatives | Documentation | ATCOR-2/3 | ATCOR-4| DROACOR
Atmospheric/topographic correction is the elimination of atmospheric and illumination effects to retrieve physical parameters of the earth's surface, i.e., the retrieval of surface spectral reflectance, emissivity and temperature. The ATCOR® products solve this task using look up tables calculated with the MODTRAN®5 radiative transfer code. The ATCOR® models has been split into separate codes optimized for satellite sensors and airborne sensors:
- The satellite ATCOR® (ATCOR-2) supports only small to moderate FOV sensors for flat terrain. It includes a large database of atmospheric correction functions (look-up-tables computed with the Modtran® 5 radiative transfer code) covering a wide range of weather conditions, sun angles, and ground elevations. ATCOR-2 is limited to multispectral and thermal standard satellite systems.
- The satellite ATCOR®, rugged terrain (ATCOR-3) supports small to moderate FOV sensors for both, flat and rugged terrain. It includes a large database of atmospheric correction functions (look-up-tables computed with the Modtran® 5 radiative transfer code) covering a wide range of weather conditions, sun angles, and ground elevations. ATCOR-3 includes support for imaging spectrometers in space.
- The airborne ATCOR® (ATCOR-4) corrects small and wide FOV airborne optical and thermal scanner data. It interpolates the solution from an extensive Modtran®-derived atmospheric database for typical flight altitudes and solar geometries.