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.
Longwave (v1.1)
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:
Shortwave (v1.2)
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:
