radiative transfer model

A radiative transfer model (RTM) essentially defines and solves a radiative transfer equation, which models how light passes through a material (e.g., a not-fully-transparent gas) via radiative transfer. Such modeling is done for meteorology as well as for astrophysics. The equation relates a number of processes (absorption, emission) which include non-linear aspects, and is not partial to analytical solutions, generally requiring computation, consisting of a code.