[Wrf-users] WRF: surface roughness

[Nikhil Garg]

in order to get the roughness, you need to output a variable ZNT, usually
this is not added to history file like wrfout, for that purpose,
you will have to modify ZNT in the registry. check Registry.EM_COMMON,
there is a line

ZNT              ij      misc        1         -      i3rh      "ZNT"
            "TIME-VARYING ROUGHNESS LENGTH"                "m"

if your registry doesnt have 'h' in the 'i3rh', then just add 'h', and
clean -a, compile and you will have the variable in your history file.

On 20 September 2016 at 19:36, G. Hesselmans <hesselmans at hermess.nl> wrote:

> Could anybody explain me how to visualize the surface roughness.
>
> I could not find surface roughness in either wrfinput_d01 or
> wrfout_d01_xxxxx.
>
> Kind regards, Gerard
>
>
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