WhatIs: The gcm.def file
De LMDZPedia
The gcm.def file ("included" in the run.def file that is read by the GCM at runtime) contains parameters related to the global (horizontal) grid and time-marching setup : physics/dynamics time steps, dissipation factors, sponge layer, zoom properties...
Many of these parameters are strongly linked to the horizontal resolution of the model. Some examples of typical parameter values for given resolutions can be found in the "DefLists" subdirectory of LMDZ.
26/11/2021
