The CLOUD Submodel



The CLOUD submodel calculates the processes usually called cloud microphysics.
Via namelist one of the implemented parametrisations can be chosen and the necessary calculations are performed automatically. At the momentary state the only scheme that is implemented is the original cloud microphysics routine from the ECHAM5 from MPI Hamburg. These routines have been modularised and adapted into the MESSy - structure, but still perform the same microphysical calculations as the original routine.
A short description of the processes in the cloud scheme are documented here .
In this module the cloud cover scheme of the original ECHAM5 is also implemented and these calculations were performed just the same way as in the original.
In addition to this the cloud droplet number concentration calculation has been moved into this module. This is still the original parametrisation, but it will be extended to a more physical coupling to an aerosol module in the future.


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This document was last changed 29 November 2006.