Add an option to calculate bottom pressure from initialization for SAL#914

Hallberg-NOAA merged 2 commits into

NOAA-GFDL:dev/gfdlNOAA-GFDL/MOM6:dev/gfdlfrom

herrwang0:add_sal_bpa_initherrwang0/MOM6:add_sal_bpa_initCopy head branch name to clipboard