fix bug (typo: OBCS_balanceFacW was used instead of OBCS_balanceFacN)
fix bug (typo: OBCS_balanceFacW was used instead of OBCS_balanceFacN)

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