Run Data Assimilation
Our next step in the NWP workflow will be to run GSI data assimilation to achieve better initial conditions in the WRF model run. GSI (gsi.exe) updates the wrfinput file created by real.exe.
SELECT THE APPROPRIATE CONTAINER INSTRUCTIONS FOR YOUR SYSTEM BELOW:
Using the previously downloaded data (in ${PROJ_DIR}/data), while pointing to the namelist in the local scripts directory, run the dtcenter/gsi container to run GSI in docker-space and map the output into the local gsiprd directory:
-v ${PROJ_DIR}/container-dtc-nwp/components/scripts/common:/home/scripts/common \
-v ${CASE_DIR}/wrfprd:/home/wrfprd -v ${CASE_DIR}/wpsprd:/home/wpsprd -v ${CASE_DIR}/gsiprd:/home/gsiprd \
-v ${PROJ_DIR}/container-dtc-nwp/components/scripts/snow_20160123:/home/scripts/case \
--name run-dtc-gsi-snow dtcenter/gsi:${PROJ_VERSION} /home/scripts/common/run_gsi.ksh
As GSI is run the output files will appear in the local gsiprd/. Please review the contents of that directory to interrogate the data.
Once GSI begins running, you can watch the log file being generated in another window by setting the ${CASE_DIR} environment variable and tailing the log file:
Type CTRL-C to exit the tail.
A successful completion of the GSI step will result in the following files (in addition to other files) in the gsiprd directory
berror_stats
diag_*
fit_*
fort*
gsiparm.anl
*info
list_run_directory
prepburf
satbias*
stdout*
wrf_inout
wrfanl.2016012300
Using the previously downloaded data (in ${PROJ_DIR}/data), while pointing to the namelist in the local scripts directory, create a container using the gsi image to run GSI in singularity-space and map the output into the local gsiprd directory:
As GSI is run the output files will appear in the local gsiprd/. Please review the contents of that directory to interrogate the data.
Once GSI begins running, you can watch the log file being generated in another window by setting the ${CASE_DIR} environment variable and tailing the log file:
A successful completion of the GSI step will result in the following files (in addition to other files) in the gsiprd directory
berror_stats
diag_*
fit_*
fort*
gsiparm.anl
*info
list_run_directory
prepburf
satbias*
stdout*
wrf_inout
wrfanl.2016012300
Type CTRL-C to exit the tail.
