land-atmosphere uncoupled run (prescribed soil moisture simulations in AMIP mode)

[szk0139@auburn_edu]

In an attempt to run a land-atmosphere uncoupled run with specified soil moisture climatology, we are first setting up an FHIST case with CLM5_BGC? Is there a suggestion to setup this case with newer version like CLM6 with FATES? Have these been tested?

We plan to run it for 20 years, then create a monthly soil-moisture climatology file. Next, we will need Erik's help to specify the soil moisture climatology file in user_nl_???? and make other necessary changes.

Thank You
Sanjiv Kumar

 

[oleson]

The only test in our test suite that tests the soil moisture streams is:

ERP_D_Ld3_PS.f09_g17.I2000Clm50Sp.derecho_intel.clm-prescribed

So, CLM50Sp.
The soil moisture streams were developed for some LS3MIP experiments. One such case directory is here:

/glade/work/cmip6/cases/LS3MIP/f.e21.FHIST_SSP126.f09_f09_mg17.CMIP6-lfmip-pdLC.001.HIST

This was a FHIST_BGC compset.
The user_nl_clm changes related to the stream were:

! Soil moisture streams
use_soil_moisture_streams = .true.
stream_fldfilename_soilm = '/glade/p/cgd/tss/people/oleson/CLM5_h2osoi/LFMIP-pdLC-SST.H2OSOI.natveg.1980-2014.MONS_climo.nc'

That was a one-year monthly climatology.

There was another version for time series soil moisture:

/glade/work/cmip6/cases/LS3MIP/f.e21.FHIST_SSP126.f09_f09_mg17.CMIP6-lfmip-rmLC.001.HIST

The user_nl_clm changes related to the streams were:

! Soil moisture streams
use_soil_moisture_streams = .true.
stream_fldfilename_soilm = '/glade/p/cgd/tss/people/oleson/CLM5_h2osoi/LFMIP-rmLCf1-SST.H2OSOI.natveg.rm1964-2100.MONS.nc'
stream_year_first_soilm = 1964
stream_year_last_soilm = 2100
model_year_align_soilm = 1964

I'm not aware of anyone trying this with CLM6-FATES.