[Wrf-users] Issues using lat-lon map_proj in ARW (UNCLASSIFIED)

Kirby, Steve (Civ, ARL/CISD) sfkirby at arl.army.mil
Mon Dec 21 16:45:41 MST 2009

Classification:  UNCLASSIFIED 
Caveats: NONE

Hi Scott,

Check the wrfbdy* or wrfinput* files for the grid spacing in them.  The .018
degrees is I believe, converted to meters.  If those files show it to be
2000.175 or whatever it shows, use that in the namelist.input for WRF.



-----Original Message-----
From: wrf-users-bounces at ucar.edu [mailto:wrf-users-bounces at ucar.edu] On
Behalf Of Scott Mackaro
Sent: Wednesday, December 16, 2009 12:20 PM
To: wrf-users at ucar.edu
Subject: [Wrf-users] Issues using lat-lon map_proj in ARW

I am attempting to run a simulation in WRF-ARW using a lat-lon map

WPS runs fine.  DX and DX are set to 0.018, and MAP_PROJ is set to lat-lon
in the namelist.wps

Upon running REAL.EXE, I received the following error...

"DX and DY do not match from the namelist and the input file"

I have tried two different settings for DX and DY in namelist.input;

DX and DY = 0.018 (degrees)


DX and DY = 2000  (m)

Both give me the same error.  I am out of ideas on getting this to work.
Any help would be appreciated. 

Scott M. Mackaro, Ph.D.
Research Associate
Cooperative Institute for Research in the Atmosphere(CIRA) NOAA Forecast
Application Branch (303)497-6830

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Classification:  UNCLASSIFIED 
Caveats: NONE

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