Please follow the steps below when wanting to run the regionally refined model (RRM) CONUS grid in ACME.
Step-by-step guide
Check-out the ACME's RRM branch:
- Follow documentation for ACME Development Quick Start.
- Clone a branch on the remote repository that is not already in my local repository.
$ git branch # lists the branches I have locally
$ git branch -r # lists the branches on the repo remotely
$ git status # lists the branch I'm on
$ git checkout ACME-Climate/ACME/tangq/cam/RRM -b tangq/cam/RRM # checks out remote branch and names it locally
Create and build a new case from the scripts directory:
- Suggested syntax
$ ./create_newcase -case $CASENAME -compset FC5 -mach (your-machine-name-here) -res conusx4v1_conusx4v1
$ ./cesm_setup
$ ./$CASENAME.build - Edit user_nl_clm to include spun-up land initial condition file.
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user_nl_clm
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finidat = '/projects/ccsm/inputdata/lnd/clm2/initdata/clmi.conusx4v1.1850-01-01.nc' - Edit the user_nl_cam to include changes to the se-dycore.
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user_nl_cam
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! Convection:
cldfrc_rhminl = .91 ! ne120 tuned value
cldfrc_dp1 = 0.025 ! default 0.10
zmconv_c0_lnd = 0.0035
zmconv_c0_ocn = 0.0035
zmconv_tau = 3000 ! in the ACME code, this is now an allowed namelist variable
! Aerosols:
soil_erod_file = '/your/path/to/inputdata/atm/cam/dst/dst_1.9x2.5_c090203.nc'
dust_emis_fact = 1.05D0 ! NCAR ne30 default: 0
! Dycore grid specific settings (Timesteps and viscosity):
se_nsplit = 5
hypervis_subcycle= 8 ! dtime=600
nu = 8.0e-8
nu_div = 20.0e-8
nu_p = 8.0e-8
hypervis_scaling= 3.2
se_ne = 0
mesh_file = '/path/to/gridfile/conusx4v1.g'