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FHIST with B initial conditions

hannay

Cecile Hannay
AMWG Liaison
Staff member
From user:

I am attempting to run CESM FHIST simulation and need to start in 1870 (or 1850) using B compset initial files. I believe this is one of the exercises on the CESM tutorials. I tried using several of the b.e21.BHIST.f09_g17.CMIP6-historicalXXX initial conditions and others (B1850) runs, but I am running across the clm interp/dimension issues and the model fails to run.

check_dim ERROR: mismatch of input dimesnions
62336 with expected value 62100 for variable landunit
Did you mean to set user_init_interp = .true. in user_nl_clm?

Should this variable be changed in the user_nl_clm namelist file to run FHIST with BHIST/B1850 startup? I need to run this control in order to retrieve higher frequency variables for eddy calculations.

Can you point me to an appropriate BHIST set that can be used for an FHIST run?

Thanks for any attention you can give to this matter.
 

hannay

Cecile Hannay
AMWG Liaison
Staff member
Please try to set:
use_init_interp = .true.
in user_nl_clm

You will also have to change:
RUN_REFCASE
RUN_REFDATE
and RUN_STARTDATE

Say you start from:
b.e21.B1850.f09_g17.CMIP6-piControl.001 at year 0501-01-01

you will set
./xmlchange RUN_REFCASE=b.e21.B1850.f09_g17.CMIP6-piControl.001
./xmlchange RUN_REFDATE=0501-01-01
./xmlchange RUN_STARTDATE=1850-01-01
 

wilson.1010

Aaron B. Wilson
New Member
Thank you Cecile. Adding use_init_interp=.true. seems to have corrected that issue. Still not running yet, but am troubleshooting the MPT error.

Thanks!
 
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