WRF ARW User's Guide - MMM - UCAR

MODEL
This program will typically read an input sounding file located in that directory, and
generate an initial condition file wrfinput_d01. All idealized cases do not require
lateral boundary file because of the boundary condition choices they use, such as the
periodic option. If the job is run successfully, the last thing it prints should be: ‘wrf:
SUCCESS COMPLETE IDEAL INIT’.
To run the model and save the standard output to a file, type
./wrf.exe >& wrf.out &
or for a 3D test case compiled with MPI (dmpar) option,
mpirun –np 4 ./wrf.exe
If successful, the wrf output file will be written to a file named
wrfout_d01_0001-01-01_00:00:00.
Pairs of rsl.out.* and rsl.error.* files will appear with any MPI runs. These
are standard out and error files. Note that the execution command for MPI runs may be
different on different machines and for different MPI installation. Check the user manual.
If the model run is successful, the last thing printed in ‘wrf.out’ or rsl.*.0000 file
should be: ‘wrf: SUCCESS COMPLETE WRF’. Output files wrfout_d01_0001-
01-01* and wrfrst* should be present in the run directory, depending on how
namelist variables are specified for output. The time stamp on these files originates from
the start times in the namelist file.
b. Real-data case
To make a real-data case run, cd to the working directory by typing
cd test/em_real (or cd run)
Start with a namelist.input template file in the directory, edit it to match your case.
Running a real-data case requires successfully running the WRF Preprocessing System
programs (or WPS). Make sure met_em.* files from WPS are seen in the run directory
(either link or copy the files):
cd test/em_real
ls –l ../../../WPS/met_em*
ln –s ../../..WPS/met_em* .
Make sure you edit the following variables in namelist.input file:
num_metgrid_levels: number of_ incoming data levels (can be found by using
ncdump command on met_em.* file)
WRF-ARW V3: User’s Guide 5-8