WRF documentation

About WRF Model:: Please read this document before compiling the model.
		  The model is comprised of several packages. To get the
		  most of it user should compile a data pre-processor, a
		  WRF solver and a post-processor. If the user wants to
		  work with GRIB2; gather jasper, PNG and zlib library.
		  Define JASPERLIB and JASPERINC in your environmental
		  variables. Before running data pre-processor (WPS) you
		  will need to download the WPS Geography data (Terrain
		  and landuse data for all resolutions has been updated
		  since the release of Version 3.5.1).
Updated:: 3/3/2014

IMPORTANT:: NetCDF 4.x depends on HDF5. You will need to compile HDF5 and install it before configuring and building NetCDF.
	    You will need to use the same compiler commands to build NetCDF as you used to build HDF5. For building NetCDF,
	    it is NOT necessary to build the HDF5 Fortran, C++, or Java API's. ONLY the HDF5 C library is used. However, you
	    will need zlib and szlib; while compiling with HDF5. It is recommended to install NetCDF Version 4.2.1 or later
	    for WRF model compilation.

Best Option:: NetCDF-3.6.3

WARNING:: Do not use NetCDF-4.1.1 (doesn't comply with WRF-ARW). If you use NetCDF-4.x or over; remember to compile NetCDF-
	  Fortran-4.x separately. Do not configure ARWpost with gfortran.

Bug reports::
    (1) While running WRF configure script; you may find the following error:

	"One of the compilers testing failed!
	Please check your compiler"

	Fix by editing the configuration file, find the phrase:
	foo = 'mktemp foo_$$'

	Change it to
	foo = 'mktemp foo_$$.XXXXXX'

     (2) ARWpost uses netcdff with netcdf. At compile time you may find this error
	  -L/usr/local/netcdf/lib -I/usr/local/netcdf/include  -lnetcdf
	  /usr/bin/ld: cannot find -lnetcdf
	  collect2: ld returned 1 exit status
	  make: [ARWpost.exe] Error 1 (ignored)

	  Go to ARWpost/src/Makefile
	  and add netcdff; before configuring and compiling
	  "ARWpost.exe: $(OBJS)
	   $(FC) $(FFLAGS) $(LDFLAGS) -o $@ $(OBJS)  \
		  -L$(NETCDF)/lib -I$(NETCDF)/include  -lnetcdf -lnetcdff"

      (3) ARWpost might not recognize your output from WRF solver and give error
	  Get your output ncdump title (ncdump -h wrfoutput | grep TITLE) and
	  verify in input_module.f90 in the following line(193).
	  "IF ( INDEX(title,'OUTPUT FROM WRF') /= 0 )     iprogram = 8 !! wrf.exe output"

      (4) ARWpost run may show this error
	  Date not in this file - see if there are more files
	  --- WE HAVE RUN OUT OF INPUT FILES ---
	  To fix that, change in ./src/module_date_pack.f90 the line 706:
	  seconds = second + 60*minute + 60*60*hour + 60*60*24*day + 60*60*24*365*century_year
	  for:
	  seconds = second + 60*minute + 60*60*hour + 60*60*24*day + 60*60*24*31*month + 60*60*24*365*century_year

      (5) If you are running with MPIRUN and the wrf shows something like this
	  ***********************************************************************
	  start of simulation interval : 02
	  ***********************************************************************
	  starting wrf task 0 of 1
	  starting wrf task 2 of 8
	  starting wrf task 3 of 8
	  starting wrf task 1 of 8
	  starting wrf task 4 of 8
	  starting wrf task 5 of 8
	  starting wrf task 6 of 8
	  starting wrf task 0 of 8
	  starting wrf task 7 of 8

	  =====================================================================================
	  = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
	  = EXIT CODE: 11
	  = CLEANING UP REMAINING PROCESSES
	  = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
	  =====================================================================================
	  APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)
	  ***********************************************************************
	  end of simulation interval : 02
	  ***********************************************************************

	  Solve by adding these lines (wherever) into the namelist.input file:
	  &namelist_quilt
	  nio_tasks_per_group = 0,
	  nio_groups = 0,
	  /


Download Links::
     Download WRF
     wget www.mmm.ucar.edu/wrf/src/WRFV3.3.TAR.gz
     Download WPS
     wget www.mmm.ucar.edu/wrf/src/WPSV3.3.TAR.gz
     Download ARWpost (postprocessor for GRADS users)
     wget www.mmm.ucar.edu/wrf/src/ARWpost_V3.tar.gz
     Download Geographic data
     wget www.mmm.ucar.edu/wrf/src/wps_files/geog.tar.gz