3. Change Physics SDF

arbetter Fri, 10/23/2020 - 15:41

Physics parameterizations for the UFS Medium Range Weather App are selected with a Suite Definition File, used by the ufs-weather-model. This is configured as part of the “comp set” for a case. The physics suite is specified with the “--compset” option to the create_newcase command.

Starting at Step #3 from the Session 1 exercises, select a different physics suite. You can query available compsets by:

cd $HOME/UFS_training/my_ufs_sandbox/cime/scripts

./query_config --compsets

Active component: ufsatm
--------------------------------------
Compset Alias: Compset Long Name
--------------------------------------
GFSv15p2 : FCST_ufsatm%v15p2_SLND_SICE_SOCN_SROF_SGLC_SWAV
GFSv16beta : FCST_ufsatm%v16beta_SLND_SICE_SOCN_SROF_SGLC_SWAV
HAFS : FCST_ufsatm%v0nocp_SLND_SICE_SOCN_SROF_SGLC_SWAV

The Medium Range Weather App supports the two listed GFS suites, so select the GFSv16beta for this experiment:

./create_newcase --compset GFSv16beta --res C96 --case $UFS_SCRATCH/ufs-mrweather-app-workflow.c96_16beta  --workflow ufs-mrweather

Change to the new case directory:

cd $UFS_SCRATCH/ufs-mrweather-app-workflow.c96_16beta

Then, continue with the instructions for Session 1: Steps #4-7.