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PTF weight error in historical run with independent soil column

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tangtao2009

Tao Tang
New Member
Dear helper:

We are running CESM (V 2.1.3), with modified codes in which the soil column for each PFT is separated. The simulation is successful with the I2000 compset or BSSP585 compset, such as ‘I2000Clm50BgsCrop’. However, when it comes to BHIST or B1850 compset, it always failed.

The case location:

/glade/u/home/taotang/cases/LUMIP_histnoLu

The command for creating new case is:

./create_newcase --case ~/cases/LUMIP_histnoLu --compset BHISTcmip6 --res f09_g17 --project XXXX --run-unsupported

The log file (/glade/scratch/taotang/LUMIP_histnoLu/run/lnd.log.4656372.chadmin1.ib0.cheyenne.ucar.edu) shows that some errors occurred at PFT weight:


check_weights ERROR: at c = 2 total PFT weight is

0.000000000000000E+000 active_only = F

check_weights ERROR: at c = 3 total PFT weight is

0.000000000000000E+000 active_only = F

check_weights ERROR: at c = 4 total PFT weight is

0.000000000000000E+000 active_only = F

check_weights ERROR: at c = 5 total PFT weight is

0.000000000000000E+000 active_only = F

check_weights ERROR: at c = 6 total PFT weight is

0.000000000000000E+000 active_only = F

……

……

If you are seeing this message at the beginning of a run with

use_init_interp = .true. and init_interp_method = "use_finidat_areas",

and you are seeing weights less than 1, then a likely cause is:

For the above-mentioned grid cell(s):

The matching input grid cell had some non-zero-weight subgrid type

that is not present in memory in the new run.

ENDRUN:

ERROR: ERROR in subgridWeightsMod.F90 at line 684


_________________________________________________________

Besides, the “RUN_TYPE” in BSSP run is “STARTUP”, which is successful; while in BHIST simulations, the “RUN_TYPE” is automatically set to “hybrid”. Not sure if this is the key reason.

We also tried this thread:

https://bb.cgd.ucar.edu/cesm/threads/issues-setting-up-hybrid-run.5074/

by removing the setting for 'init_interp_method = "use_finidat_areas". The same errors still occurred. All possible solutions have been tried, but still not lucky. Any hint or comment is appreciated.

Regards
 
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