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ice_model.F90
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ice_model.F90
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!***********************************************************************
!* GNU Lesser General Public License
!*
!* This file is part of the GFDL Ice Null Model Component.
!*
!* Ice Null is free software: you can redistribute it and/or modify it
!* under the terms of the GNU Lesser General Public License as published
!* by the Free Software Foundation, either version 3 of the License, or
!* (at your option) any later version.
!*
!* Ice Null is distributed in the hope that it will be useful, but
!* WITHOUT ANY WARRANTY; without even the implied warranty of
!* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
!* General Public License for more details.
!*
!* You should have received a copy of the GNU Lesser General Public
!* License along with Ice Null.
!* If not, see <http://www.gnu.org/licenses/>.
!***********************************************************************
module ice_model_mod
use ice_albedo_mod, only: ice_albedo_init, ice_albedo
use ocean_albedo_mod, only: compute_ocean_albedo_new
use ocean_rough_mod, only: compute_ocean_roughness, fixed_ocean_roughness
use fms2_io_mod, only : open_file, close_file, read_data, &
variable_exists,FmsNetcdfFile_t
use fms_mod, only: mpp_pe, mpp_root_pe, mpp_npes, write_version_number, stdlog, &
error_mesg, FATAL, check_nml_error, &
NOTE, WARNING, stdout, &
clock_flag_default
use mpp_mod, only: mpp_chksum, mpp_clock_id, CLOCK_COMPONENT, &
CLOCK_LOOP, CLOCK_ROUTINE, mpp_clock_begin, mpp_clock_end
#ifdef INTERNAL_FILE_NML
use mpp_mod, only: input_nml_file
#else
use fms_mod, only: open_namelist_file
#endif
use constants_mod, only: hlv, hlf, tfreeze, pi, radius
use mpp_domains_mod, only: domain1d, domain2d, mpp_define_domains, mpp_get_compute_domain, &
mpp_get_compute_domains, mpp_get_domain_components, mpp_get_pelist, &
mpp_define_layout, mpp_define_io_domain, mpp_global_field, &
XUPDATE, YUPDATE, CORNER, mpp_set_domain_symmetry, BGRID_NE
use diag_manager_mod, only: diag_axis_init, register_diag_field, send_data
use time_manager_mod, only: time_type, operator(+)
use mosaic2_mod, only: get_mosaic_ntiles, get_mosaic_grid_sizes
use grid2_mod, only: get_grid_comp_area, get_grid_size, get_grid_cell_vertices, &
get_grid_cell_centers, get_grid_cell_area
!use amip_interp_mod, only: amip_interp_type, amip_interp_new
use coupler_types_mod,only: coupler_1d_bc_type, coupler_2d_bc_type, coupler_3d_bc_type
implicit none
private
public :: ice_data_type, ocean_ice_boundary_type, atmos_ice_boundary_type, land_ice_boundary_type
public :: ice_model_init, ice_model_end, update_ice_model_fast, ice_stock_pe, cell_area
public :: ice_model_restart
public :: ocn_ice_bnd_type_chksum, atm_ice_bnd_type_chksum
public :: lnd_ice_bnd_type_chksum, ice_data_type_chksum
public :: update_ice_atm_deposition_flux, share_ice_domains
public :: unpack_ocean_ice_boundary, exchange_slow_to_fast_ice, set_ice_surface_fields
public :: ice_model_fast_cleanup, unpack_land_ice_boundary
public :: exchange_fast_to_slow_ice, update_ice_model_slow
type ice_data_type
type(domain2d) :: Domain
type(domain2d) :: slow_Domain_NH
logical :: pe
logical :: slow_ice_pe
logical :: fast_ice_pe
logical :: shared_slow_fast_PEs = .true.
integer, pointer, dimension(:) :: pelist =>NULL()
integer, pointer, dimension(:) :: slow_pelist =>NULL()
integer, pointer, dimension(:) :: fast_pelist =>NULL()
real, pointer, dimension(:) :: glon_bnd =>NULL(), &
glat_bnd =>NULL(), &
lon_bnd =>NULL() , &
lat_bnd =>NULL()
real, pointer, dimension(:,:) :: lon =>NULL(), &
lat =>NULL(), &
SST_C =>NULL()
logical, pointer, dimension(:,:) :: mask =>NULL()
logical, pointer, dimension(:,:,:) :: ice_mask =>NULL()
real, pointer, dimension(:,:,:,:) :: temp =>NULL()
real, pointer, dimension(:,:,:) :: part_size =>NULL(), &
t_surf =>NULL(), &
albedo =>NULL(), &
albedo_vis_dir =>NULL(), &
albedo_nir_dir =>NULL(), &
albedo_vis_dif =>NULL(), &
albedo_nir_dif =>NULL(), &
rough_mom =>NULL(),&
rough_heat =>NULL(), &
rough_moist =>NULL(), &
frazil =>NULL(), &
u_surf =>NULL(), &
v_surf =>NULL()
real, pointer, dimension(:,:,:) :: flux_u_bot =>NULL(), &
flux_v_bot =>NULL(), &
flux_t_bot =>NULL(), &
flux_q_bot =>NULL(), &
flux_lh_bot =>NULL(), &
flux_sw_bot =>NULL(), &
flux_sw_vis_bot =>NULL(), &
flux_sw_dir_bot =>NULL(), &
flux_sw_dif_bot =>NULL(), &
flux_sw_vis_dir_bot =>NULL(), &
flux_sw_vis_dif_bot =>NULL(), &
flux_sw_nir_dir_bot =>NULL(), &
flux_sw_nir_dif_bot =>NULL(), &
flux_lw_bot =>NULL(), &
lprec_bot =>NULL(), &
fprec_bot =>NULL(), &
runoff_bot =>NULL()
real, pointer, dimension(:,: ) :: flux_u =>NULL(), &
flux_v =>NULL(), &
flux_t =>NULL(), &
flux_q =>NULL(), &
flux_lh =>NULL(), &
flux_sw =>NULL(), &
flux_sw_vis =>NULL(), &
flux_sw_dir =>NULL(), &
flux_sw_dif =>NULL(), &
flux_sw_vis_dir =>NULL(), &
flux_sw_vis_dif =>NULL(), &
flux_sw_nir_dir =>NULL(), &
flux_sw_nir_dif =>NULL(), &
flux_lw =>NULL(), &
lprec =>NULL(), &
fprec =>NULL(), &
p_surf =>NULL(), &
runoff =>NULL(), &
calving =>NULL(), &
stress_mag =>NULL(), &
ustar_berg =>NULL(), &
area_berg =>NULL(), &
mass_berg =>NULL(), &
runoff_hflx =>NULL(), &
calving_hflx =>NULL(), &
area =>NULL(), &
flux_salt =>NULL()
logical, pointer, dimension(:,:) :: maskmap =>NULL() ! A pointer to an array indicating which
! logical processors are actually used for
! the ocean code. The other logical
! processors would be all land points and
! are not assigned to actual processors.
! This need not be assigned if all logical
! processors are used. This variable is dummy and need
! not to be set, but it is needed to pass compilation.
integer :: avg_kount
real, pointer, dimension(:,:,:) :: thickness =>NULL()
type (time_type) :: Time_Init, Time, &
Time_step_fast, &
Time_step_slow
integer, dimension(3) :: axes
type(coupler_3d_bc_type) :: ocean_fields ! array of fields used for additional tracers
type(coupler_2d_bc_type) :: ocean_fluxes ! array of fluxes used for additional tracers
type(coupler_3d_bc_type) :: ocean_fluxes_top ! array of fluxes for averaging
real, pointer, dimension(:,:) :: mi =>NULL() ! This is needed for the wave model. It is introduced here,
integer :: flux_uv_stagger = -999
end type ice_data_type
type :: ocean_ice_boundary_type
real, dimension(:,:), pointer :: u =>NULL(), &
v =>NULL(), &
t =>NULL(), &
s =>NULL(), &
frazil =>NULL(), &
sea_level =>NULL()
real, dimension(:,:,:), pointer :: data =>NULL()
integer :: xtype
type(coupler_2d_bc_type) :: fields ! array of fields used for additional tracers
integer :: stagger = BGRID_NE
end type ocean_ice_boundary_type
type :: atmos_ice_boundary_type
real, dimension(:,:,:), pointer :: u_flux =>NULL(), &
v_flux =>NULL(), &
u_star =>NULL(), &
t_flux =>NULL(), &
q_flux =>NULL(), &
lw_flux =>NULL(), &
sw_flux_vis_dir =>NULL(), &
sw_flux_vis_dif =>NULL(), &
sw_flux_nir_dir =>NULL(), &
sw_flux_nir_dif =>NULL(), &
sw_down_vis_dir =>NULL(), &
sw_down_vis_dif =>NULL(), &
sw_down_nir_dir =>NULL(), &
sw_down_nir_dif =>NULL(), &
lprec =>NULL(), &
fprec =>NULL()
real, dimension(:,:,:), pointer :: dhdt =>NULL(), &
dedt =>NULL(), &
drdt =>NULL(), &
coszen =>NULL(), &
p =>NULL(), &
data =>NULL()
integer :: xtype
type(coupler_3d_bc_type) :: fluxes ! array of fluxes used for additional tracers
end type atmos_ice_boundary_type
type :: land_ice_boundary_type
real, dimension(:,:), pointer :: runoff =>NULL(), &
calving =>NULL(), &
runoff_hflx =>NULL(), &
calving_hflx =>NULL()
real, dimension(:,:,:), pointer :: data =>NULL()
integer :: xtype
end type land_ice_boundary_type
character(len=128) :: version = '$Id$'
character(len=128) :: tagname = '$Name$'
character(len=80) :: restart_format = 'amip ice model restart format 02'
logical :: module_is_initialized = .false.
logical :: stock_warning_issued = .false.
integer :: isc, iec, jsc, jec ! compute domain
! iceClock variables from ice_type.F90 for compatibility with ice_sis interfaces
integer :: iceClock, iceClock1, iceCLock3
! id's for diagnostics
integer :: id_sh, id_lh, id_sw, id_lw, id_snofl, id_rain, &
id_runoff, id_calving, id_evap, id_fax, id_fay, &
id_sw_vis, id_sw_dir, id_sw_dif, id_sw_vis_dir, id_sw_vis_dif, &
id_sw_nir_dir, id_sw_nir_dif
logical :: sent
!-----------------------------------------------------------------------
!
! use_climo_ice = use monthly climatological amip ice mask
! use_annual_ice = use annual climatology amip ice mask
! temp_ice_freeze = temperature at which sea ice melts
! no_ice = run with no ice (only open water)
! use_leads = use fraction ice coverage (i.e., leads) if it exists
! roughness_ice = constant roughness for all ice
! specified_ice_thickness = constant thickness for specified ice
integer, parameter :: num_lev = 1
integer, parameter :: num_part = 2
real :: diff = 2.092
real :: thickness_min = 0.10
real :: specified_ice_thickness = 2.0
real :: temp_ice_freeze = -1.66 ! was 271.5
real :: roughness_ice = 1.e-4
logical :: no_ice = .false.
logical :: use_leads = .false.
logical :: use_climo_ice = .false.
logical :: use_annual_ice = .false.
integer, dimension(2) :: layout = (/ 0, 0 /)
integer, dimension(2) :: io_layout = (/ 0, 0 /)
character(len=64) :: interp_method = "conservative" ! default conservative scheme
logical :: do_netcdf_restart = .true.
character(len=128) :: axisname_x = 'xt' ! x-axis name of temperature grid
character(len=128) :: axisname_y = 'yt' ! y-axis name of temperature grid
character(len=128) :: axisname_xb = 'xb' ! x-axis bounds name of temperature grid
character(len=128) :: axisname_yb = 'yb' ! y-axis bounds name of temperature grid
namelist /ice_model_nml/ do_netcdf_restart, diff, thickness_min, &
specified_ice_thickness, &
temp_ice_freeze, roughness_ice, &
use_climo_ice, use_annual_ice, &
no_ice, use_leads, layout, interp_method, &
axisname_x, axisname_y, axisname_xb, axisname_yb, &
io_layout
real, parameter :: latent = hlv + hlf
!type(amip_interp_type), save :: Amip
real, allocatable, dimension(:,:) :: cell_area ! grid cell area; sphere frac.
integer :: mlon, mlat, npart ! global grid size
! interface for fast ice for compatibility with SIS2
interface update_ice_model_fast ! overload to support old interface
module procedure update_ice_model_fast_new
end interface
contains
!=============================================================================================
subroutine ice_model_init( Ice, Time_Init, Time, Time_step_fast, Time_step_slow, Verona_coupler, &
concurrent_ice, gas_fluxes, gas_fields_ocn)
type(ice_data_type), intent(inout) :: Ice
type(time_type) , intent(in) :: Time_Init, Time, Time_step_fast, Time_step_slow
logical, optional, intent(in) :: Verona_coupler
logical, optional, intent(in) :: Concurrent_ice ! for compatibility with SIS2. For SIS1
! there is no difference between fast and
! slow ice PEs.
type(coupler_1d_bc_type), &
optional, intent(in) :: gas_fluxes ! If present, this type describes the
! additional gas or other tracer fluxes between the
! ocean, ice, and atmosphere, and can be used to
! spawn related internal variables in the ice model.
type(coupler_1d_bc_type), &
optional, intent(in) :: gas_fields_ocn ! If present, this type describes the
! ocean and surface-ice fields that will participate
! in the calculation of additional gas or other
! tracer fluxes, and can be used to spawn related
! internal variables in the ice model.
real, allocatable, dimension(:,:) :: lonv, latv, rmask
real, allocatable, dimension(:) :: glon, glat
real, allocatable, dimension(:) :: xb, yb ! 1d global grid for diag_mgr
real, allocatable, dimension(:,:) :: tmpx, tmpy, tmp_2d
integer :: io, ierr, unit, siz(4), logunit
integer :: nlon, nlat, i, j, k
character(len=80) :: control
character(len=80) :: domainname
character(len=256) :: err_mesg
character(len=64) :: fname = 'INPUT/ice_model.res.nc'
character(len=256) :: grid_filename='INPUT/grid_spec.nc'
type(FmsNetcdfFile_t) :: grid_fileobj, ocn_mosaic_fileobj
character(len=256) :: ocn_mosaic_filename, tile_file
character(len=256) :: axo_file ! atmosXocean exchange grid file
integer :: nx(1), ny(1)
integer :: ntiles, n, m
integer :: grid_version
integer, parameter :: VERSION_0 = 0 ! grid file with field geolon_t
integer, parameter :: VERSION_1 = 1 ! grid file with field x_T
integer, parameter :: VERSION_2 = 2 ! mosaic file
if(module_is_initialized) return
read(input_nml_file, ice_model_nml, iostat=io)
ierr = check_nml_error(io, 'ice_model_nml')
call write_version_number (version, tagname)
if ( mpp_pe() == mpp_root_pe() ) then
logunit = stdlog()
write (logunit, nml=ice_model_nml)
endif
!if (num_part /= 2) call error_mesg ('ice_model_init','this version must have num_part = 2', FATAL)
!if (num_lev /= 1) call error_mesg ('ice_model_init','this version must have num_lev = 1', FATAL)
!--- get the grid size
call get_grid_size('OCN',1,nlon,nlat)
!-------------------- domain decomposition -----------------------------
if( layout(1).EQ.0 .AND. layout(2).EQ.0 ) &
call mpp_define_layout( (/1,nlon,1,nlat/), mpp_npes(), layout )
if( layout(1).NE.0 .AND. layout(2).EQ.0 )layout(2) = mpp_npes()/layout(1)
if( layout(1).EQ.0 .AND. layout(2).NE.0 )layout(1) = mpp_npes()/layout(2)
domainname = 'AMIP Ice'
call mpp_define_domains( (/1,nlon,1,nlat/), layout, Ice%Domain, name=domainname )
call mpp_define_io_domain (Ice%Domain, io_layout)
Ice%slow_Domain_NH = Ice%domain
call mpp_get_compute_domain( Ice%Domain, isc, iec, jsc, jec )
allocate ( glon (nlon ), glat (nlat ) )
allocate ( lonv (isc:iec+1, jsc:jec+1) )
allocate ( latv (isc:iec+1, jsc:jec+1) )
allocate( rmask(isc:iec,jsc:jec) )
allocate( Ice%glon_bnd(nlon+1), Ice%glat_bnd(nlat+1) )
allocate ( Ice%lon_bnd (isc:iec+1), &
Ice%lat_bnd (jsc:jec+1), &
Ice%lon (isc:iec, jsc:jec), &
Ice%lat (isc:iec, jsc:jec), &
Ice%SST_C(isc:iec, jsc:jec) )
! ---- set up local grid -----
call get_grid_cell_vertices('OCN', 1, Ice%glon_bnd, Ice%glat_bnd)
call get_grid_cell_centers ('OCN', 1, glon, glat)
call get_grid_cell_vertices('OCN', 1, lonv, latv, Ice%domain)
call get_grid_cell_centers ('OCN', 1, Ice%lon, Ice%lat, Ice%domain)
!--- for conservation interpolation, the grid should be rectangular ----
if(trim(interp_method) == "conservative" ) then
err_mesg = 'Bilinear interpolation must be used for a tripolar grid'
do i=isc, iec
if(any(glon(i) /= Ice%lon(i,:))) &
call error_mesg ('ice_model_init',err_mesg,FATAL)
enddo
do j=jsc,jec
if(any(glat(j) /= Ice%lat(:,j))) &
call error_mesg ('ice_model_init',err_mesg,FATAL)
enddo
endif
!---------------- read ice cell areas from grid_spec.nc or ----------------
!---------------- calculate the area for mosaic grid file ----------------
allocate (cell_area(isc:iec, jsc:jec))
cell_area = 0.0
call get_grid_cell_area('OCN', 1, cell_area, Ice%domain)
! ------ define Data masks ------
if(open_file(grid_fileobj, grid_filename, 'read')) then
if(variable_exists(grid_fileobj, 'wet')) then
call read_data(grid_fileobj, "wet", rmask)
else if(variable_exists(grid_fileobj, 'ocn_mosaic_file') ) then ! read from mosaic file
call read_data(grid_fileobj, "ocn_mosaic_file", ocn_mosaic_filename)
ocn_mosaic_filename = "INPUT/"//trim(ocn_mosaic_filename)
if(open_file(ocn_mosaic_fileobj, ocn_mosaic_filename, 'read')) then
ntiles = get_mosaic_ntiles(ocn_mosaic_fileobj)
if(ntiles .NE. 1) call error_mesg('ice_model_init', ' ntiles should be 1 for ocean mosaic, contact developer', FATAL)
rmask = 0.0
call get_grid_comp_area('OCN', 1, rmask, domain=Ice%Domain)
rmask = rmask/cell_area
do j = jsc, jec
do i = isc, iec
if(rmask(i,j) == 0.0) cell_area(i,j) = 0.0
end do
end do
else
call error_mesg("ice_model_init", "ocn_mosaic_file:"//trim(ocn_mosaic_filename)//"not found", FATAL)
endif
else
call error_mesg('ice_model_init','wet and ocn_mosaic_file does not exist in file '//trim(grid_filename), FATAL )
end if
else
call error_mesg("ice_model_init", "grid file: "//trim(grid_filename)//" not found", FATAL)
end if
!--- xb and yb is for diagnostics --------------------------------------
allocate(xb(nlon+1), yb(nlat+1) )
allocate ( tmpx(isc:iec+1, nlat+1) )
call mpp_set_domain_symmetry(Ice%Domain, .TRUE.)
call mpp_global_field(Ice%Domain, lonv, tmpx, flags=YUPDATE, position=CORNER)
allocate ( tmp_2d(isc:iec+1, jsc:jec+1) )
tmp_2d = 0
tmp_2d(isc:iec+1,jsc) = sum(tmpx,2)/(nlat+1);
deallocate(tmpx)
allocate ( tmpx(nlon+1, jsc:jec+1) )
call mpp_global_field(Ice%Domain, tmp_2d, tmpx, flags=XUPDATE, position=CORNER)
xb = tmpx(:,jsc)
deallocate(tmpx, tmp_2d)
allocate ( tmpy(nlon+1, jsc:jec+1) )
call mpp_global_field(Ice%Domain, latv, tmpy, flags=XUPDATE, position=CORNER)
allocate ( tmp_2d(isc:iec+1, jsc:jec+1) )
tmp_2d = 0
tmp_2d(isc,jsc:jec+1) = sum(tmpy,1)/(nlon+1);
deallocate(tmpy)
allocate ( tmpy(isc:iec+1, nlat+1) )
call mpp_global_field(Ice%Domain, tmp_2d, tmpy, flags=YUPDATE, position=CORNER)
yb = tmpy(isc,:)
deallocate(tmpy, tmp_2d)
call mpp_set_domain_symmetry(Ice%Domain, .FALSE.)
!--- define the ice data -----------------------------------------------
Ice%lon = Ice%lon*pi/180.
Ice%lat = Ice%lat*pi/180.
Ice%glon_bnd = Ice%glon_bnd*pi/180.
Ice%glat_bnd = Ice%glat_bnd*pi/180.
Ice%lon_bnd = Ice%glon_bnd(isc:iec+1)
Ice%lat_bnd = Ice%glat_bnd(jsc:jec+1)
!-----------------------------------------------------------------------
allocate ( Ice%ice_mask (isc:iec, jsc:jec, num_part) , &
Ice%temp (isc:iec, jsc:jec, num_part, num_lev), &
Ice%part_size (isc:iec, jsc:jec, num_part) , &
Ice%albedo (isc:iec, jsc:jec, num_part) , &
Ice%albedo_vis_dir (isc:iec, jsc:jec, num_part) , &
Ice%albedo_nir_dir (isc:iec, jsc:jec, num_part) , &
Ice%albedo_vis_dif (isc:iec, jsc:jec, num_part) , &
Ice%albedo_nir_dif (isc:iec, jsc:jec, num_part) , &
Ice%rough_mom (isc:iec, jsc:jec, num_part) , &
Ice%rough_heat (isc:iec, jsc:jec, num_part) , &
Ice%rough_moist (isc:iec, jsc:jec, num_part) , &
Ice%u_surf (isc:iec, jsc:jec, num_part) , &
Ice%v_surf (isc:iec, jsc:jec, num_part) , &
Ice%thickness (isc:iec, jsc:jec, num_part) , &
Ice%mask (isc:iec, jsc:jec) , &
Ice%SST_C(isc:iec, jsc:jec) )
Ice%t_surf => Ice%temp (:,:,:,1)
Ice%Time = Time
Ice%Time_init = Time_init
Ice%Time_step_fast = Time_step_fast
Ice%Time_step_slow = Time_step_slow
Ice%avg_kount = 0
Ice%SST_C = 0.0
Ice%mask = .false.
where ( rmask > 0 ) Ice%mask = .true.
allocate ( Ice%flux_u_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_v_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_t_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_q_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_lh_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_vis_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_dir_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_dif_bot (isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_vis_dir_bot(isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_vis_dif_bot(isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_nir_dir_bot(isc:iec, jsc:jec, num_part) , &
Ice%flux_sw_nir_dif_bot(isc:iec, jsc:jec, num_part) , &
Ice%flux_lw_bot (isc:iec, jsc:jec, num_part) , &
Ice%lprec_bot (isc:iec, jsc:jec, num_part) , &
Ice%fprec_bot (isc:iec, jsc:jec, num_part) , &
Ice%runoff_bot (isc:iec, jsc:jec, num_part) , &
Ice%frazil (isc:iec, jsc:jec, num_part) )
allocate ( Ice%flux_u (isc:iec, jsc:jec) , &
Ice%flux_v (isc:iec, jsc:jec) , &
Ice%flux_t (isc:iec, jsc:jec) , &
Ice%flux_q (isc:iec, jsc:jec) , &
Ice%flux_lh (isc:iec, jsc:jec) , &
Ice%flux_sw (isc:iec, jsc:jec) , &
Ice%flux_sw_vis (isc:iec, jsc:jec) , &
Ice%flux_sw_dir (isc:iec, jsc:jec) , &
Ice%flux_sw_dif (isc:iec, jsc:jec) , &
Ice%flux_sw_vis_dir (isc:iec, jsc:jec) , &
Ice%flux_sw_vis_dif (isc:iec, jsc:jec) , &
Ice%flux_sw_nir_dir (isc:iec, jsc:jec) , &
Ice%flux_sw_nir_dif (isc:iec, jsc:jec) , &
Ice%flux_lw (isc:iec, jsc:jec) , &
Ice%lprec (isc:iec, jsc:jec) , &
Ice%fprec (isc:iec, jsc:jec) , &
Ice%p_surf (isc:iec, jsc:jec) , &
Ice%runoff (isc:iec, jsc:jec) , &
Ice%calving (isc:iec, jsc:jec) , &
Ice%runoff_hflx (isc:iec, jsc:jec) , &
Ice%calving_hflx(isc:iec, jsc:jec) , &
Ice%area (isc:iec, jsc:jec) , &
Ice%mi (isc:iec, jsc:jec) , &
Ice%flux_salt (isc:iec, jsc:jec) )
Ice%flux_u = 0.0
Ice%flux_v = 0.0
Ice%flux_t = 0.0
Ice%flux_q = 0.0
Ice%flux_lh = 0.0
Ice%flux_sw = 0.0
Ice%flux_sw_vis = 0.0
Ice%flux_sw_dir = 0.0
Ice%flux_sw_dif = 0.0
Ice%flux_sw_vis_dir = 0.0
Ice%flux_sw_vis_dif = 0.0
Ice%flux_sw_nir_dir = 0.0
Ice%flux_sw_nir_dif = 0.0
Ice%flux_lw = 0.0
Ice%lprec = 0.0
Ice%fprec = 0.0
Ice%p_surf = 0.0
Ice%runoff = 0.0
Ice%calving = 0.0
Ice%runoff_hflx = 0.0
Ice%calving_hflx = 0.0
Ice%area = 0.0
Ice%mi = 0.0
Ice%flux_salt = 0.0
Ice%area = cell_area * 4*PI*RADIUS*RADIUS
Ice%mi = 0.0
! ---- initialize with no ice
Ice%temp = tfreeze + temp_ice_freeze
Ice%thickness = 0.0
Ice%part_size = 0.0
Ice%part_size (:,:,1) = 1.0
Ice%albedo = 0.14
! initialize ocean values - ice values initialized below
Ice%albedo_vis_dir(:,:,1) = Ice%albedo(:,:,1)
Ice%albedo_nir_dir(:,:,1) = Ice%albedo(:,:,1)
Ice%albedo_vis_dif(:,:,1) = Ice%albedo(:,:,1)
Ice%albedo_nir_dif(:,:,1) = Ice%albedo(:,:,1)
Ice%rough_mom = 0.0004
Ice%rough_heat = 0.0004
Ice%rough_moist= 0.0004
Ice%u_surf = 0.0
Ice%v_surf = 0.0
Ice%frazil = 0.0
! --- open water roughness (initially fixed) ---
call fixed_ocean_roughness ( Ice%mask, Ice%rough_mom (:,:,1), &
Ice%rough_heat (:,:,1), &
Ice%rough_moist(:,:,1) )
!! set ice partiton values to that of Ice%albedo.
Ice%albedo_vis_dir(:,:,2) = Ice%albedo(:,:,2)
Ice%albedo_nir_dir(:,:,2) = Ice%albedo(:,:,2)
Ice%albedo_vis_dif(:,:,2) = Ice%albedo(:,:,2)
Ice%albedo_nir_dif(:,:,2) = Ice%albedo(:,:,2)
!---- initialization of ice mask (actually where ice exists) -----
Ice%ice_mask = .false.
where (Ice%mask (:,:) .and. &
Ice%part_size(:,:,2) > 0.0 .and. &
Ice%thickness(:,:,2) >= thickness_min) &
Ice%ice_mask(:,:,2) = .true.
call ice_albedo_init (tfreeze)
! if(trim(interp_method) == "conservative") then
! Amip = amip_interp_new ( Ice%lon_bnd, Ice%lat_bnd, &
! Ice%mask(:,:), &
! interp_method = interp_method, &
! use_climo=use_climo_ice, &
! use_annual=use_annual_ice )
! else if(trim(interp_method) == "bilinear") then
! Amip = amip_interp_new ( Ice%lon, Ice%lat, &
! Ice%mask(:,:), &
! interp_method = interp_method, &
! use_climo=use_climo_ice, &
! use_annual=use_annual_ice )
! else
! call error_mesg('ice_model_init', 'interp_method should be conservative or bilinear', &
! FATAL)
! endif
! --- diagnostics ---
! call ice_diag_init (Ice, xb, yb)
!Balaji
! iceClock computation added for sis2 interface compatibility
iceClock = mpp_clock_id( 'Ice', flags=clock_flag_default, grain=CLOCK_COMPONENT )
iceClock1 = mpp_clock_id( 'Ice: bot to top', flags=clock_flag_default, grain=CLOCK_ROUTINE )
iceClock3 = mpp_clock_id( 'Ice: update fast', flags=clock_flag_default, grain=CLOCK_ROUTINE )
!--- release the memory ------------------------------------------------
deallocate(lonv, latv, glon, glat, rmask, xb, yb )
module_is_initialized = .true.
end subroutine ice_model_init
!=============================================================================================
subroutine update_ice_model_fast_old( Ice, Atmos_boundary)
type (ice_data_type), intent(inout) :: Ice
type(atmos_ice_boundary_type), intent(in) :: Atmos_boundary
return
end subroutine update_ice_model_fast_old
!=============================================================================================
subroutine unpack_ocean_ice_boundary(Ocean_boundary, Ice)
type(ocean_ice_boundary_type), intent(inout) :: Ocean_boundary
type(ice_data_type), intent(inout) :: Ice
call ice_bottom_to_ice_top (Ice, Ocean_boundary%t, Ocean_boundary%u, Ocean_boundary%v, &
Ocean_boundary%frazil, Ocean_boundary, Ocean_boundary%s, Ocean_boundary%sea_level)
return
end subroutine unpack_ocean_ice_boundary
!=============================================================================================
subroutine update_ice_model_slow( Ice, runoff, calving, runoff_hflx, calving_hflx, p_surf)
type(ice_data_type), intent(inout) :: Ice
real, dimension(:,:), intent(in), optional :: runoff, calving
real, dimension(:,:), intent(in), optional :: runoff_hflx, calving_hflx
real, dimension(:,:), intent(in), optional :: p_surf
return
end subroutine update_ice_model_slow
!=============================================================================================
subroutine ice_model_end(Ice)
type(ice_data_type), intent(inout) :: Ice
character(len=64) :: fname='RESTART/ice_model.res.nc'
integer :: unit
if(.not.module_is_initialized) return
module_is_initialized = .false.
end subroutine ice_model_end
!#######################################################################
subroutine ice_model_restart(Ice, time_stamp)
type (ice_data_type), intent(inout), optional :: Ice
character(len=*), intent(in), optional :: time_stamp
return
end subroutine ice_model_restart
!=============================================================================================
subroutine ice_stock_pe(Ice, index, value)
type(ice_data_type), intent(in) :: Ice
integer, intent(in) :: index
real, intent(out) :: value
value = 0.0
return
end subroutine ice_stock_pe
!=============================================================================================
subroutine ice_data_type_chksum(id, timestep, data_type)
character(len=*), intent(in) :: id
integer , intent(in) :: timestep
type(ice_data_type), intent(in) :: data_type
return
end subroutine ice_data_type_chksum
!=============================================================================================
subroutine ocn_ice_bnd_type_chksum(id, timestep, bnd_type)
character(len=*), intent(in) :: id
integer , intent(in) :: timestep
type(ocean_ice_boundary_type), intent(in) :: bnd_type
return
end subroutine ocn_ice_bnd_type_chksum
!=============================================================================================
subroutine atm_ice_bnd_type_chksum(id, timestep, bnd_type)
character(len=*), intent(in) :: id
integer , intent(in) :: timestep
type(atmos_ice_boundary_type), intent(in) :: bnd_type
return
end subroutine atm_ice_bnd_type_chksum
!=============================================================================================
subroutine lnd_ice_bnd_type_chksum(id, timestep, bnd_type)
character(len=*), intent(in) :: id
integer , intent(in) :: timestep
type(land_ice_boundary_type), intent(in) :: bnd_type
return
end subroutine lnd_ice_bnd_type_chksum
!=============================================================================================
subroutine update_ice_atm_deposition_flux(Ice_boundary, Ice )
type(atmos_ice_boundary_type), intent(inout):: Ice_boundary
type(ice_data_type), intent(inout):: Ice
!Do nothing! This interface is only active for newer coupled models that use SIS2
end subroutine update_ice_atm_deposition_flux
!=============================================================================================
subroutine share_ice_domains(Ice)
type(ice_data_type), intent(inout) :: Ice
! This is a null interface
end subroutine share_ice_domains
!=============================================================================================
subroutine exchange_slow_to_fast_ice(Ice)
type(ice_data_type), intent(in) :: Ice
end subroutine exchange_slow_to_fast_ice
!=============================================================================================
subroutine exchange_fast_to_slow_ice(Ice)
type(ice_data_type), intent(in) :: Ice
end subroutine exchange_fast_to_slow_ice
!=============================================================================================
subroutine set_ice_surface_fields(Ice)
type(ice_data_type), intent(inout) :: Ice
! Null routines to provide similar interfaces to those used by SIS2.
! In SIS this functionality is combined into ice_bottom_to_ice_top.
end subroutine set_ice_surface_fields
!=============================================================================================
subroutine ice_model_fast_cleanup(Ice)
type(ice_data_type), intent(in) :: Ice
end subroutine ice_model_fast_cleanup
!=============================================================================================
subroutine unpack_land_ice_boundary(Ice, LIB)
type(ice_data_type), intent(inout) :: Ice ! The publicly visible ice data type.
type(land_ice_boundary_type), intent(in) :: LIB ! The land ice boundary type that is being unpacked.
! logical :: sent
! integer :: i, j, i_off, j_off
! if (associated(LIB%runoff)) then ! save liquid runoff for ocean
! i_off = LBOUND(LIB%runoff,1) - isc
! j_off = LBOUND(LIB%runoff,2) - jsc
! do j = jsc, jec
! do i = isc, iec
! Ice % runoff(i,j) = LIB%runoff(i+i_off, j+j_off)
! enddo
! enddo
! else
! do j = jsc, jec
! do i = isc, iec
! Ice % runoff(i,j) = 0.0
! enddo
! enddo
! endif
! if (associated(LIB%calving)) then ! save frozen runoff for ocean
! i_off = LBOUND(LIB%calving,1) - isc
! j_off = LBOUND(LIB%calving,2) - jsc
! do j = jsc, jec
! do i = isc, iec
! Ice % calving(i,j) = LIB%calving(i+i_off, j+j_off)
! enddo
! enddo
! else
! do j = jsc, jec
! do i = isc, iec
! Ice % calving(i,j) = 0.0
! enddo
! enddo
! endif
! if (associated(LIB%runoff_hflx)) then ! save liquid runoff hflx for ocean
! do j = jsc, jec
! do i = isc, iec
! Ice % runoff_hflx(i,j) = LIB%runoff_hflx(i+i_off, j+j_off)
! enddo
! enddo
! else
! do j = jsc, jec
! do i = isc, iec
! Ice % runoff_hflx(i,j) = 0.0
! enddo
! enddo
! endif
! if (associated(LIB%calving_hflx)) then ! save frozen runoff hflx for ocean
! do j = jsc, jec
! do i = isc, iec
! Ice % calving_hflx(i,j) = LIB%calving_hflx(i+i_off, j+j_off)
! enddo
! enddo
! else
! do j = jsc, jec
! do i = isc, iec
! Ice % calving_hflx(i,j) = 0.0
! enddo
! enddo
! endif
end subroutine unpack_land_ice_boundary
!=============================================================================================
!\brief: dummy version of ice_sis routine that is called by the new interfaces,
!! but is not used by ice_null.
subroutine ice_bottom_to_ice_top(Ice, t_surf_ice_bot, u_surf_ice_bot, v_surf_ice_bot, &
frazil_ice_bot, Ocean_ice_boundary, s_surf_ice_bot, sea_lev_ice_bot )
type (ice_data_type), intent(inout) :: Ice
real, dimension(isc:iec,jsc:jec), intent(in) :: t_surf_ice_bot, u_surf_ice_bot
real, dimension(isc:iec,jsc:jec), intent(in) :: v_surf_ice_bot, frazil_ice_bot
type(ocean_ice_boundary_type), intent(inout) :: Ocean_ice_boundary
real, dimension(isc:iec,jsc:jec), intent(in), optional :: s_surf_ice_bot, sea_lev_ice_bot
end subroutine ice_bottom_to_ice_top
!=============================================================================================
!\brief new coupler interface to provide ocean surface data to atmosphere
! calls a dummy version of ice_bottom_to_ice_top
subroutine update_ice_model_slow_up ( Ocean_boundary, Ice )
type(ocean_ice_boundary_type), intent(inout) :: Ocean_boundary
type (ice_data_type), intent(inout) :: Ice
call mpp_clock_begin(iceClock)
call mpp_clock_begin(iceClock1)
call ice_bottom_to_ice_top(Ice, Ocean_boundary%t, Ocean_boundary%u, Ocean_boundary%v, &
Ocean_boundary%frazil, Ocean_boundary, Ocean_boundary%s, Ocean_boundary%sea_level )
call mpp_clock_end(iceClock1)
call mpp_clock_end(iceClock)
end subroutine update_ice_model_slow_up
!=============================================================================================
!\brief new coupler interface to do slow ice processes: dynamics, transport, mass
!
subroutine update_ice_model_slow_dn ( Atmos_boundary, Land_boundary, Ice )
type(atmos_ice_boundary_type), intent(inout) :: Atmos_boundary
type(land_ice_boundary_type), intent(inout) :: Land_boundary
type (ice_data_type), intent(inout) :: Ice
call unpack_land_ice_boundary( Ice, Land_boundary )
call update_ice_model_slow (Ice, Ice%runoff, Ice%calving, Ice%runoff_hflx, Ice%calving_hflx, Ice%p_surf)
end subroutine update_ice_model_slow_dn
!=============================================================================================
!\brief new coupler interface to do fast ice processes
!\note the update_ice_model_fast_old routine is different from the one in ice_sis
! However, the interface is the same in both versions of ice_model.F90.
subroutine update_ice_model_fast_new ( Atmos_boundary, Ice )
type(atmos_ice_boundary_type), intent(inout) :: Atmos_boundary
type (ice_data_type), intent(inout) :: Ice
call mpp_clock_begin(iceClock)
call mpp_clock_begin(iceClock3)
call update_ice_model_fast_old(Ice, Atmos_boundary)
call mpp_clock_end(iceClock3)
call mpp_clock_end(iceClock)
end subroutine update_ice_model_fast_new
!=============================================================================================
end module ice_model_mod