A fast atmospheric radiation code for global circulation models
Global circulation models, for numerical weather and climate prediction, spend about 30% of their time in radiation computations. Hence, the performance of atmospheric radiative transfer models (RTMs) is critically important.
We present RRTMGP.jl, a commonly used atmospheric RTM for global circulation models. Translated from Fortran, RRTMGP.jl has new abstractions, CI tests, and will run on GPUs. We will give a quick overview of the problem/equations that are solved and improvements.