! SVN:$Id: CICE_InitMod.F90 1304 2015-11-12 19:28:14Z afrobert@nps.edu $ !======================================================================= ! ! This module contains the CICE initialization routine that sets model ! parameters and initializes the grid and CICE state variables. ! ! authors Elizabeth C. Hunke, LANL ! William H. Lipscomb, LANL ! Philip W. Jones, LANL ! ! 2006: Converted to free form source (F90) by Elizabeth Hunke ! 2008: E. Hunke moved ESMF code to its own driver module CICE_InitMod use ice_kinds_mod implicit none private public :: CICE_Initialize, cice_init save !======================================================================= contains !======================================================================= ! Initialize the basic state, grid and all necessary parameters for ! running the CICE model. Return the initial state in routine ! export state. ! Note: This initialization driver is designed for standalone and ! CCSM-coupled applications. For other ! applications (e.g., standalone CAM), this driver would be ! replaced by a different driver that calls subroutine cice_init, ! where most of the work is done. subroutine CICE_Initialize !-------------------------------------------------------------------- ! model initialization !-------------------------------------------------------------------- call cice_init end subroutine CICE_Initialize !======================================================================= ! ! Initialize CICE model. subroutine cice_init use ice_aerosol, only: faero_default use ice_algae, only: get_forcing_bgc use ice_calendar, only: dt, dt_dyn, time, istep, istep1, write_ic, & init_calendar, calendar use ice_communicate, only: init_communicate use ice_diagnostics, only: init_diags use ice_domain, only: init_domain_blocks use ice_dyn_eap, only: init_eap use ice_dyn_shared, only: kdyn, init_evp use ice_fileunits, only: init_fileunits use ice_firstyear, only: init_FY use ice_flux, only: init_coupler_flux, init_history_therm, & init_history_dyn, init_flux_atm, init_flux_ocn use ice_forcing, only: init_forcing_ocn, init_forcing_atmo, & get_forcing_atmo, get_forcing_ocn use ice_grid, only: init_grid1, init_grid2 use ice_history, only: init_hist, accum_hist use ice_restart_shared, only: restart, runid, runtype use ice_init, only: input_data, init_state use ice_itd, only: init_itd use ice_kinds_mod use ice_restoring, only: ice_HaloRestore_init use ice_shortwave, only: init_shortwave use ice_state, only: tr_aero use ice_therm_vertical, only: init_thermo_vertical use ice_timers, only: timer_total, init_ice_timers, ice_timer_start use ice_transport_driver, only: init_transport use ice_zbgc, only: init_zbgc use ice_zbgc_shared, only: skl_bgc #ifdef popcice use drv_forcing, only: sst_sss #endif call init_communicate ! initial setup for message passing call init_fileunits ! unit numbers call input_data ! namelist variables if (trim(runid) == 'bering') call check_finished_file call init_zbgc ! vertical biogeochemistry namelist call init_domain_blocks ! set up block decomposition call init_grid1 ! domain distribution call init_ice_timers ! initialize all timers call ice_timer_start(timer_total) ! start timing entire run call init_grid2 ! grid variables call init_calendar ! initialize some calendar stuff call init_hist (dt) ! initialize output history file if (kdyn == 2) then call init_eap (dt_dyn) ! define eap dynamics parameters, variables else ! for both kdyn = 0 or 1 call init_evp (dt_dyn) ! define evp dynamics parameters, variables endif call init_coupler_flux ! initialize fluxes exchanged with coupler #ifdef popcice call sst_sss ! POP data for CICE initialization #endif call init_thermo_vertical ! initialize vertical thermodynamics call init_itd ! initialize ice thickness distribution call calendar(time) ! determine the initial date #ifndef CICE_IN_NEMO call init_forcing_ocn(dt) ! initialize sss and sst from data #endif call init_state ! initialize the ice state call init_transport ! initialize horizontal transport call ice_HaloRestore_init ! restored boundary conditions call init_restart ! initialize restart variables call init_diags ! initialize diagnostic output points call init_history_therm ! initialize thermo history variables call init_history_dyn ! initialize dynamic history variables ! Initialize shortwave components using swdn from previous timestep ! if restarting. These components will be scaled to current forcing ! in prep_radiation. if (trim(runtype) == 'continue' .or. restart) & call init_shortwave ! initialize radiative transfer istep = istep + 1 ! update time step counters istep1 = istep1 + 1 time = time + dt ! determine the time and date call calendar(time) ! at the end of the first timestep !-------------------------------------------------------------------- ! coupler communication or forcing data initialization !-------------------------------------------------------------------- #ifndef CICE_IN_NEMO call init_forcing_atmo ! initialize atmospheric forcing (standalone) #endif #ifndef coupled call get_forcing_atmo ! atmospheric forcing from data call get_forcing_ocn(dt) ! ocean forcing from data ! if (tr_aero) call faero_data ! aerosols if (tr_aero) call faero_default ! aerosols if (skl_bgc) call get_forcing_bgc #endif if (runtype == 'initial' .and. .not. restart) & call init_shortwave ! initialize radiative transfer using current swdn call init_flux_atm ! initialize atmosphere fluxes sent to coupler call init_flux_ocn ! initialize ocean fluxes sent to coupler if (write_ic) call accum_hist(dt) ! write initial conditions end subroutine cice_init !======================================================================= subroutine init_restart use ice_aerosol, only: init_aerosol use ice_age, only: init_age, restart_age, read_restart_age use ice_blocks, only: nx_block, ny_block use ice_brine, only: init_hbrine use ice_calendar, only: time, calendar use ice_domain, only: nblocks use ice_domain_size, only: ncat, max_ntrcr use ice_dyn_eap, only: read_restart_eap use ice_dyn_shared, only: kdyn use ice_firstyear, only: init_fy, restart_FY, read_restart_FY use ice_flux, only: sss use ice_grid, only: tmask use ice_init, only: ice_ic use ice_itd, only: aggregate use ice_lvl, only: init_lvl, restart_lvl, read_restart_lvl use ice_meltpond_cesm, only: init_meltponds_cesm, & restart_pond_cesm, read_restart_pond_cesm use ice_meltpond_lvl, only: init_meltponds_lvl, & restart_pond_lvl, read_restart_pond_lvl, dhsn use ice_meltpond_topo, only: init_meltponds_topo, & restart_pond_topo, read_restart_pond_topo use ice_restart_shared, only: runtype, restart use ice_restart_driver, only: restartfile, restartfile_v4 use ice_state ! almost everything use ice_zbgc, only: init_bgc use ice_zbgc_shared, only: skl_bgc integer(kind=int_kind) :: iblk if (trim(runtype) == 'continue') then ! start from core restart file call restartfile() ! given by pointer in ice_in call calendar(time) ! update time parameters if (kdyn == 2) call read_restart_eap ! EAP else if (restart) then ! ice_ic = core restart file call restartfile (ice_ic) ! or 'default' or 'none' !!! uncomment to create netcdf ! call restartfile_v4 (ice_ic) ! CICE v4.1 binary restart file !!! uncomment if EAP restart data exists ! if (kdyn == 2) call read_restart_eap endif ! tracers ! ice age tracer if (tr_iage) then if (trim(runtype) == 'continue') & restart_age = .true. if (restart_age) then call read_restart_age else do iblk = 1, nblocks call init_age(nx_block, ny_block, ncat, trcrn(:,:,nt_iage,:,iblk)) enddo ! iblk endif endif ! first-year area tracer if (tr_FY) then if (trim(runtype) == 'continue') restart_FY = .true. if (restart_FY) then call read_restart_FY else do iblk = 1, nblocks call init_FY(nx_block, ny_block, ncat, trcrn(:,:,nt_FY,:,iblk)) enddo ! iblk endif endif ! level ice tracer if (tr_lvl) then if (trim(runtype) == 'continue') restart_lvl = .true. if (restart_lvl) then call read_restart_lvl else do iblk = 1, nblocks call init_lvl(nx_block, ny_block, ncat, & trcrn(:,:,nt_alvl,:,iblk), trcrn(:,:,nt_vlvl,:,iblk)) enddo ! iblk endif endif ! CESM melt ponds if (tr_pond_cesm) then if (trim(runtype) == 'continue') & restart_pond_cesm = .true. if (restart_pond_cesm) then call read_restart_pond_cesm else do iblk = 1, nblocks call init_meltponds_cesm(nx_block, ny_block, ncat, & trcrn(:,:,nt_apnd,:,iblk), trcrn(:,:,nt_hpnd,:,iblk)) enddo ! iblk endif endif ! level-ice melt ponds if (tr_pond_lvl) then if (trim(runtype) == 'continue') & restart_pond_lvl = .true. if (restart_pond_lvl) then call read_restart_pond_lvl else do iblk = 1, nblocks call init_meltponds_lvl(nx_block, ny_block, ncat, & trcrn(:,:,nt_apnd,:,iblk), trcrn(:,:,nt_hpnd,:,iblk), & trcrn(:,:,nt_ipnd,:,iblk), dhsn(:,:,:,iblk)) enddo ! iblk endif endif ! topographic melt ponds if (tr_pond_topo) then if (trim(runtype) == 'continue') & restart_pond_topo = .true. if (restart_pond_topo) then call read_restart_pond_topo else do iblk = 1, nblocks call init_meltponds_topo(nx_block, ny_block, ncat, & trcrn(:,:,nt_apnd,:,iblk), trcrn(:,:,nt_hpnd,:,iblk), & trcrn(:,:,nt_ipnd,:,iblk)) enddo ! iblk endif ! .not restart_pond endif if (tr_aero) call init_aerosol ! ice aerosol if (tr_brine) call init_hbrine ! brine height tracer if (skl_bgc) call init_bgc ! biogeochemistry !----------------------------------------------------------------- ! aggregate tracers !----------------------------------------------------------------- !$OMP PARALLEL DO PRIVATE(iblk) do iblk = 1, nblocks call aggregate (nx_block, ny_block, & aicen(:,:,:,iblk), & trcrn(:,:,:,:,iblk),& vicen(:,:,:,iblk), & vsnon(:,:,:,iblk), & aice (:,:, iblk), & trcr (:,:,:,iblk), & vice (:,:, iblk), & vsno (:,:, iblk), & aice0(:,:, iblk), & tmask(:,:, iblk), & max_ntrcr, & trcr_depend) enddo !$OMP END PARALLEL DO end subroutine init_restart !======================================================================= ! ! Check whether a file indicating that the previous run finished cleanly ! If so, then do not continue the current restart. This is needed only ! for runs on machine 'bering' (set using runid = 'bering'). ! ! author: Adrian Turner, LANL subroutine check_finished_file() use ice_communicate, only: my_task, master_task use ice_exit, only: abort_ice use ice_restart_shared, only: restart_dir character(len=char_len_long) :: filename logical :: lexist = .false. if (my_task == master_task) then filename = trim(restart_dir)//"finished" inquire(file=filename, exist=lexist) if (lexist) then call abort_ice("Found already finished file - quitting") end if endif end subroutine check_finished_file !======================================================================= end module CICE_InitMod !=======================================================================