Reference/Technical documentation

RTE and RRTMGP aspire to follow a set of coding conventions:

Module names start with mo_, class/type names with ty_.
Real variables are defined with working precision wp; logical variables with wl. Both Fortran KIND parameters are set in mo_rte_kind.F90
Most procedures in RTE and RRTMGP are functions which return a string. A non-empty string indicates an error of some kind.
RTE and RRTMGP operate on multiple columns (profiles) at once. Problems are dimensioned by column, layer, and spectral quadrature point.
RTE and RRTMGP are agnostic to vertical ordering
Units are MKS
Procedures (with the exception of testing code) do not perform I/O

Fortran user-facing class interfaces