Welcome to the new DiscussCESM forum!
We are still working on the website migration, so you may experience downtime during this process.

Existing users, please reset your password before logging in here: https://xenforo.cgd.ucar.edu/cesm/index.php?lost-password/

Bias in ground temperature


Arti Jadav
New Member
I am running the CAM simulation in single column mode. I am using the CESM2.1.2
When I use the namelist parameter "scm_iop_lhflxshflxTg = .true.", I get the following error message during the build

" ERROR: in validate_variable_value (package Build::Namelist): Variable name scm_iop_lhflxshflxtg has values that does NOT match any of the valid values: iop eulc slt off. "

Also, when I use "scm_iop_Tg = .true.", the value of the surface temperature in the model output is different than in the IOP file with a bias of about 10 Kelvin at the start of the run.


Also, which source file is used for the surface radiation calculation in the SCAM model ?
Can you please, help me with this.

Best Regards,
Arti Jadav


Shuaiqi Tang
New Member
I also got similar error when using "scm_iop_lhflxshflxTg = .true." in create_scam6_iop. But I can add this line in atm_in in the run folder after creating the directory, then re-run the model. It gives consistent Tg in model and forcing data.