Running WRF BEPBEM in V4 and on

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davidwrf
Posts: 22
Joined: Tue Feb 12, 2019 8:43 am

Running WRF BEPBEM in V4 and on

Post by davidwrf » Mon Mar 22, 2021 8:37 am

Hello,

Is there any user's manual for running BEP/BEM urban scheme updated for the latest WRF versions?

I have used to apply the urban schemes with WRF V3.6.1.
Now using WRF V4.2.2, and realized there are some changes in setting some options in namelist.input.

In README.input I see now the list of parameters:
********************************************************************
num_urban_ndm = 1! (= 2 if BEP or BEM active) maximum number of street dimensions (ndm in BEP or BEM header)
num_urban_ng = 1! (= 10 if BEP or BEM active) number of grid levels in the ground (ng_u in BEP or BEM header)
num_urban_nwr = 1! (= 10 if BEP or BEM active) number of grid levels in the walls or roof (nwr_u in BEP or BEM header)
num_urban_nz = 1! (= 18 if BEP or BEM active) maximum number of vertical levels in the urban grid (nz_um in BEP or BEM header)
num_urban_ngb = 1! (= 10 if BEM active) number of grid levels in the ground below building (ngb_u in BEM header)
num_urban_nf = 1! (= 10 if BEM active) number of grid levels in the floors (nf_u in BEM header)
num_urban_nbui = 1! (= 15 if BEM active) maximum number of types of buildings in an urban class (nbui_max in BEM header)
***********************************************************************
Should these parameters be included in namelist.input and set equal to 1, when using BEM? (maybe equal 2, 10, 10, 18, ...?)
When I included these parameters (as well as sf_urban_physics = 3, 3, 3,) and ran real.exe, it did not run successfully and showed an error message pointing to the above lines:

**********************************************************************
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 11082
ERRORS while reading one or more namelists from namelist.input.
************************************************************************

When I did not included the above list, real and wrf seems to run fine.


David

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