subroutine proc_open implicit none !! write headers in output files call output_landscape_init call header_channel call header_aquifer call header_sd_channel call header_mgt call header_lu_change call header_yield call header_hyd call header_reservoir call header_wetland call header_snutc call header_water_allocation call header_pest call header_path call header_salt !rtb salt call header_const !rtb cs call header_write return end subroutine proc_open