Question about a few errors in the log files in CLM5?

[mengqi]

Hi,

I am working on code development in CLM5. Specifically, I activated three new PFTs by changing a parameter named “mergetoclmpft” in the parameter file. In addition, I also changed the surface dataset file accordingly.

After that, I tried to run a regional case in the U.S. Midwest. However, it failed. I tried to check the log files but I did not understand what it meant. Could anyone give me some insights about the log files? I attached these log files.

Many thanks in advance!

 

[oleson]

The error is pointing to this line in lnd_import_export.F90

call state_setexport_1d(exportState, Sl_t , lnd2atm_inst%t_rad_grc(begg:), &
init_spval=.true., rc=rc)

and the error is indicating a NaN (not a number) for that field (t_rad_grc).
If you haven't modified CLM source code, then this generally can mean that there is some bad atmospheric forcing or a problem in how the atmospheric forcing is mapped to the grid cell. You'll want to identify the grid cell in question and see why t_rad_grc is NaN.