This page evaluates CKD models generated by the "CMA" tool. Note that these models are only intended for use with present-day greenhouse-gas concentrations, so have not been evaluated in alternative climate scenarios.
CMA version 1.1 uses the CKDMIP "narrow" band structure (13 bands) in the longwave and the model evaluated has a total of 124 g-points. The performance of broadband heating rates and fluxes in present-day conditions is as follows, evaluated using line-by-line calculations on the 50 CKDMIP "Evaluation-1" profiles:
The evaluation in each of the 13 bands is shown here (in order of increasing wavenumber):
or equivalently plotted in terms of the error in each band:
CMA version 1.2 uses the CKDMIP "narrow" band structure (13 bands) in the shortwave and a total of 140 g-points. The evaluation of present-day fluxes and heating rates is here:
and the evaluation in individual bands is here:
or equivalently plotted in terms of errors compared to line-by-line:
