& ,runoff_lat0,runoff_lat_inc
_RL runoff_lat0, runoff_lat_inc(MAX_LAT_INC)
& runoff_lat0, runoff_lat_inc,
& runoff_lon0, runoff_lon_inc, runoff_lat0, runoff_lat_inc,
runoff_lat0 = phimin + delY(1) / 2