Radiation model

From Glossary of Meteorology

radiation model

A mathematical or computational description of radiative transfer that produces radiation products for specified atmospheric conditions.

They may be relatively simple approximations, as in the two stream and delta Eddington models, which are basically monochromatic models. More complicated broadband models include the correlated-k, and more complicated scattering models include Monte Carlo models. Use of radiation models has replaced earlier use of radiation charts.