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ocean-ice velocities should be exchanged on C-grid when running w/ CICE6 C-grid #1555

Open DeniseWorthen opened 1 year ago

DeniseWorthen commented 1 year ago

Description

CICE6 runs on the B-grid unless C-grid is specified. Velocities are located on the corners. MOM6 runs on the C-grid and velocities are located on the E and N faces. For exchange of velocity components between CICE6 and MOM6 in B+C grid case, the velocities are first averaged to the center grid point before being exchanged.

When CICE6 runs on the C-grid, no averaging of velocities is required and the velocities should be exchanged on the native E/N grid points.

Solution

When CICE6 is run on the C-grid, velocity components should be exchanged on the native grid points.

Alternatives

Related to

DeniseWorthen commented 11 months ago

@NeilBarton-NOAA This is the UWM issue for c-grid compatability.