Upgrade WRF and WPS for new GFS

I got the following in an email from WRF:

Beginning 1200 UTC July 19, NCEP will upgrade GFS, as well as several output datasets provided on its ftp site. The updates, which include adding missing values to land fields (such as soil temperature, moisture and snow etc.), and changing the landsea mask field, will break the WRF model if you are not using an updated version of WPS.

…which I ignored. Then my WRF forecasts stopped working, so I upgraded to the new WRF/WPS.

I downloaded WRFV3.9.TAR.gz and WPSV3.9.0.1.TAR.gz to ORR2 and put them in directory WRFV3.9. I then followed instructions from my earlier post.

Prepare environment:
# Set Intel environment
module purge

. /share/apps/intelPS/composer_xe_2015.3.187/bin/compilervars.sh intel64
export PATH=/share/apps/mvapich2intel/bin:$PATH

export DIR=/home/conor/LIBRARIES

export CC=icc
export CFLAGS='-O2 -fpic'

export F77=ifort
export FC=ifort
export F90=ifort
export FFLAGS='-O2 -fpic'

export CXX=icpc
export CPP='icc -E'
export CXXCPP='icpc -E'
export CXXFLAGS='-O2 -fpic'
export CPPFLAGS=-I$DIR/zlib/include

export PATH=$DIR/netcdf/bin:$PATH
export NETCDF=$DIR/netcdf
export LDFLAGS=-L$DIR/zlib/lib

export JASPERINC=${DIR}/jasper/include
export JASPERLIB=${DIR}/jasper/lib
Build WRF

It is important to compile WRFV3 before WPS as WPS makes use of the external I/O libraries in the WRFV3/external directory that are built when WRF is installed. Change into the WRF directory and build:

tar -xzf WRFV3.8.1.TAR.gz
cd WRFV3
Option: 15. (dmpar) INTEL (ifort/icc)
./compile em_real >& log.compile

It takes a long time. It should produce the following executables:

[conor@orr2 WRFV3]$ ls -hl main/*.exe
-rwxrwxr-x 1 conor conor 44M Jul 20 13:26 main/ndown.exe
-rwxrwxr-x 1 conor conor 44M Jul 20 13:26 main/real.exe
-rwxrwxr-x 1 conor conor 44M Jul 20 13:26 main/tc.exe
-rwxrwxr-x 1 conor conor 51M Jul 20 13:24 main/wrf.exe
Build WPS
tar -xzf WPSV3.9.0.1.TAR.gz
cd WPS
  17.  Linux x86_64, Intel compiler    (serial)
./compile >& log.compile

If all goes well, you should get the following executables:

[conor@orr2 WPS]$ ls -hl *.exe
lrwxrwxrwx 1 conor conor 23 Jul 20 13:36 geogrid.exe -> geogrid/src/geogrid.exe
lrwxrwxrwx 1 conor conor 23 Jul 20 13:38 metgrid.exe -> metgrid/src/metgrid.exe
lrwxrwxrwx 1 conor conor 21 Jul 20 13:37 ungrib.exe -> ungrib/src/ungrib.exe

I needed to download a few extra geog files to get it to work.

Test Cases

WPSV3.9.0.1/WRFV3.9 work for the January 2000 test case.

It also works for the Katrina 2005 test case, but interestingly not for the recommended time step=180. This gave a cfl error. I changed to 90s and it completed successfully.