Number of metgrid levels

alainF

Member
Hello,
I was wondering how the number of levels in metgrid are chosen. In the GFS files, there are 41 pressure levels. Why are there 34 levels in the met_em files, BOTTOM-TOP_GRID_DIMENSION = 34. I do not find this setting in the namelist.wps file.
This is not a bug report but I try to better understand how WPS works.

Thank you for your help.
 
Please run the command below:

ncdump -h met_em | grep num_metgrid_levels

This gives you the correct number.

Note that this is not a setting in WPS. It is determined based on data you ungrib.
 
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