new S/R that replaces MDSREADFIELD (& _LOC), with 1 more argument,  and cleaned-up (remove 1/3 of calls);
new S/R that replaces MDSREADFIELD (& _LOC), with 1 more argument,
 and cleaned-up (remove 1/3 of calls);

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h