A Correlated K-Distribution (CKD) tool generates CKD gas-optics models in a number of steps. This page compares how the various tools perform each step. One of the most interesting parts of CKDMIP will be to understand how differences in how particular steps are performed feed through to differences in accuracy. The steps are:
Implementation language:
Select band boundaries:
Reorder spectrum:
Choose number of g points:
Partition g space for one gas:
Partition g space for multiple gases:
Compute absorption of one gas:
Compute combined absorption of multiple gases:
Compute Planck function for each longwave g point:
Compute incoming solar radiation for each shortwave g point:
ecCKD