In this case, MESONH FM files are used. The parallelization of the surface fields is done during the reading or writing of the fields by the FMREAD and FMWRIT routines. Files are produced in LFI format. Since version 5.2, NETCDF format is also allowed in MESONH.
In MESONH, there are usually 2 ways to produce initial files, depending if you want to use real or ideal atmospheric conditions. However, from the surface point of view, there is no difference between these 2 main possibilities of fields (real -e.g. from operationnal surface scheme in an (…)
Note however that, in PREP_PGD (just before the call to the surface physiographic computation in PGD, for which the namelists are described in the next chapter), there is a namelist to define the output physiographic file:
Fortran name Fortran type Default value
CPGDFILE string of (…)
Then, the MESONH run can be done. During this one, the diagnostics can be, or not, be computed.
In DIAG, the surface diagnostics can also be recomputed.
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