WRF4.1.2 ERROR: sf_surface_physics = 7 AND flag_imperv = 0

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WRF4.1.2 ERROR: sf_surface_physics = 7 AND flag_imperv = 0

Postby kelucas619 » Thu Aug 01, 2019 11:01 am

Hi! I have been trying to run real.exe from the latest version of the WRF model but would end up with this error:

taskid: 0 hostname: oroshi.ees.hokudai.ac.jp
module_io_quilt_old.F 2931 T
Ntasks in X 1 , ntasks in Y 1
Parent domain
ids,ide,jds,jde 1 150 1 150
ims,ime,jms,jme -4 155 -4 155
ips,ipe,jps,jpe 1 150 1 150
DYNAMICS OPTION: Eulerian Mass Coordinate
alloc_space_field: domain 1 , 761966876 bytes allocated
d01 2017-01-01_00:00:00 Yes, this special data is acceptable to use: OUTPUT FROM METGRID V4.1
d01 2017-01-01_00:00:00 Input data is acceptable to use: met_em.d01.2017-01-01_00:00:00.nc
metgrid input_wrf.F first_date_input = 2017-01-01_00:00:00
metgrid input_wrf.F first_date_nml = 2017-01-01_00:00:00
d01 2017-01-01_00:00:00 Timing for input 0 s.
d01 2017-01-01_00:00:00 flag_soil_layers read from met_em file is 1
----- ERROR: sf_surface_physics = 7 AND flag_imperv = 0
----- ERROR: sf_surface_physics = 7 AND flag_canfra = 0
-------------- FATAL CALLED ---------------
Either modify the namelist settings, or rebuild the geogrid/metgrid data
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

Can anyone tell me what this means? I'm currently running it using the PX-ACM2 schemes for the SL-LSM-PBL physics options. I'm guessing the problem could be related to this. When I change these into other options, let's say MM5-YSU or ETA-MJY, real and wrf work just fine.

Posts: 1
Joined: Thu Aug 01, 2019 10:51 am

Re: WRF4.1.2 ERROR: sf_surface_physics = 7 AND flag_imperv =

Postby tanksnr » Fri Oct 04, 2019 5:13 am

Hi there,

I've come across the same error trying to run PX-LSM.
It looks like it needs urban impervious fraction and urban canopy fraction.

I think it really depends on where your domain is.
If it's in the US, then great, just figure out why GEOGRID isn't including those two data into your geo files.
If not, then you're out of luck because that data is present in the WRF geog data only for the US (see http://www2.mmm.ucar.edu/wrf/users/down ... _geog.html).

Looking at for example the impervious data and what it actually represents (https://www.arcgis.com/home/item.html?i ... 1ec9c95bce) I think it'd be pretty easy to generate something crude for your domain. However I'm not sure if it'd be easy to include into the static geog dataset for GEOGRID to read.
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