Special land values

[kshedstrom]

The MOM6 boundary files were generated in such a way as to not have a land mask. This could well be intentional and the result of the flooding. However, the bottom depths seem to have odd values, such that the salinity is freshest at several bottom levels. The velocities also have a similar discontinuity. The source files have land down there, I expect. Is there any way to tell MOM6 that those values are not to be trusted?

[MJHarrison-GFDL]

These cells with bad values are coming from the extrapolation step so the question should be, why is the extrapolation producing ridiculous values? I don't think these values are having an impact though, since they should have vanishing thicknesses.