o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S   (affects plume_on_slope "cg2d" output)
o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
  (affects plume_on_slope "cg2d" output)

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