Modify the prescribed SST file for the QPC6 model

[mattymiller]

Hello!

I'm trying to run a modified aquaplanet model witht he QPC6 compset, and I'm unsure of how to introduce my own prescribed sst. All I'm trying to do is give the model a zonally equal sst profile where the temp is 27C at the equator and 15C at the poles. Any advice on where/how to modify an already existing sst file or where/how I can link to my own?

Thank you!

 

[brianpm]

Have a look at the file
$CESMROOT/cime/src/components/data_comps/docn/docn_comp_mod.F90

The analytical aquaplanet SSTs are provided by the subroutine prescribed_sst. It sounds like a good option for your case is to start from one of the standard aquaplanet SST options (probably "QOBS", which is sst_option == 3. You could modify the analytical function to be 15C at the poles.

The other option is to generate a netCDF SST dataset and supply that as the aquaplanet lower boundary condition. To do that, see the documentation in the CAM6 user guide:

4.2.1.4. Example 4: Aquaplanet with user-specified SST dataset​