Update MOM6 cap for 2-way ocean-wave coupling for HAFS

[binli2337]

The mom_cap_methods.F90 file located in the MOM6/config_src/drivers/nuopc_cap directory is revised to convert imported Stokes drift components from a missing value (9.99e20) to zero. This update doesn't have any impacts on global applications.

[DeniseWorthen]

I think doing this via a hard-coded FillValue is problematic. It may work in UFS, but what about other users of the cap? Have you tried implementing this via a logical control flag (eg case_name) which for the hafs application is ufs.hafs.

You're also only checking one component of the stokes drift.

[jiandewang]

agree with @DeniseWorthen , NCAR is also using nuopc driver for their system

[binli2337]

@DeniseWorthen ,@jiandewang Thank you for the suggestions. I will try to use the case_name option.

[jiandewang]

@binli2337 I am trying to understand your logic here.
in mom-cap you read in "case_name", then you added case_name in mom_inport subroutine agument list.
what value it will be for "case_name" in cap code when you call mom_import for non-hafs case ? It has to be assigned a value as it isn't optional in subroutine.