ARTS - The Atmospheric Radiative Transfer Simulator

ARTS is a radiative transfer model for the millimeter and sub-millimeter spectral range. There are a number of models mostly developed explicitly for the different sensors. The basic principle for the development of ARTS is to provide a code that can be applied for many different applications concerning radiative transfer calculations in the microwave region. For this reason much emphasis has been placed on modularity, extendibility, and generality.

• Website: http://www.radiativetransfer.org/