/
ice_init.F90
3383 lines (3064 loc) · 164 KB
/
ice_init.F90
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!=======================================================================
! parameter and variable initializations
!
! authors Elizabeth C. Hunke and William H. Lipscomb, LANL
! C. M. Bitz, UW
!
! 2004 WHL: Block structure added
! 2006 ECH: Added namelist variables, warnings.
! Replaced old default initial ice conditions with 3.14 version.
! Converted to free source form (F90).
module ice_init
use ice_kinds_mod
use ice_communicate, only: my_task, master_task, ice_barrier
use ice_constants, only: c0, c1, c2, c3, c5, c12, p01, p2, p3, p5, p75, p166, &
cm_to_m
use ice_exit, only: abort_ice
use ice_fileunits, only: nu_nml, nu_diag, nml_filename, diag_type, &
ice_stdout, get_fileunit, release_fileunit, bfbflag, flush_fileunit, &
ice_IOUnitsMinUnit, ice_IOUnitsMaxUnit
#ifdef CESMCOUPLED
use ice_fileunits, only: inst_suffix, nu_diag_set
#endif
use icepack_intfc, only: icepack_warnings_flush, icepack_warnings_aborted
use icepack_intfc, only: icepack_aggregate
use icepack_intfc, only: icepack_init_trcr
use icepack_intfc, only: icepack_init_parameters
use icepack_intfc, only: icepack_init_tracer_flags
use icepack_intfc, only: icepack_init_tracer_sizes
use icepack_intfc, only: icepack_query_tracer_flags
use icepack_intfc, only: icepack_query_tracer_sizes
use icepack_intfc, only: icepack_query_tracer_indices
use icepack_intfc, only: icepack_query_parameters
implicit none
private
character(len=char_len_long), public :: &
ice_ic ! method of ice cover initialization
! 'internal' => set from ice_data_ namelist
! 'none' => no ice
! filename => read file
public :: input_data, init_state, set_state_var
!=======================================================================
contains
!=======================================================================
! Namelist variables, set to default values; may be altered
! at run time
!
! author Elizabeth C. Hunke, LANL
subroutine input_data
use ice_broadcast, only: broadcast_scalar, broadcast_array
use ice_diagnostics, only: diag_file, print_global, print_points, latpnt, lonpnt, &
debug_model, debug_model_step, debug_model_task, &
debug_model_i, debug_model_j, debug_model_iblk
use ice_domain, only: close_boundaries, orca_halogrid
use ice_domain_size, only: ncat, nilyr, nslyr, nblyr, nfsd, nfreq, &
n_iso, n_aero, n_zaero, n_algae, &
n_doc, n_dic, n_don, n_fed, n_fep, &
max_nstrm
use ice_calendar, only: year_init, month_init, day_init, sec_init, &
istep0, histfreq, histfreq_n, histfreq_base, &
dumpfreq, dumpfreq_n, diagfreq, dumpfreq_base, &
npt, dt, ndtd, days_per_year, use_leap_years, &
write_ic, dump_last, npt_unit
use ice_arrays_column, only: oceanmixed_ice
use ice_restart_column, only: restart_age, restart_FY, restart_lvl, &
restart_pond_lvl, restart_pond_topo, restart_aero, &
restart_fsd, restart_iso, restart_snow
use ice_restart_shared, only: &
restart, restart_ext, restart_coszen, restart_dir, restart_file, pointer_file, &
runid, runtype, use_restart_time, restart_format, lcdf64
use ice_history_shared, only: hist_avg, history_dir, history_file, hist_suffix, &
incond_dir, incond_file, version_name, &
history_precision, history_format, hist_time_axis
use ice_flux, only: update_ocn_f, cpl_frazil, l_mpond_fresh
use ice_flux, only: default_season
use ice_flux_bgc, only: cpl_bgc
use ice_forcing, only: &
ycycle, fyear_init, debug_forcing, &
atm_data_type, atm_data_dir, precip_units, rotate_wind, &
atm_data_format, ocn_data_format, atm_data_version, &
bgc_data_type, &
ocn_data_type, ocn_data_dir, wave_spec_file, &
oceanmixed_file, restore_ocn, trestore, &
ice_data_type, ice_data_conc, ice_data_dist, &
snw_filename, &
snw_tau_fname, snw_kappa_fname, snw_drdt0_fname, &
snw_rhos_fname, snw_Tgrd_fname, snw_T_fname
use ice_arrays_column, only: bgc_data_dir, fe_data_type
use ice_grid, only: grid_file, gridcpl_file, kmt_file, &
bathymetry_file, use_bathymetry, &
bathymetry_format, kmt_type, &
grid_type, grid_format, &
grid_ice, grid_ice_thrm, grid_ice_dynu, grid_ice_dynv, &
grid_ocn, grid_ocn_thrm, grid_ocn_dynu, grid_ocn_dynv, &
grid_atm, grid_atm_thrm, grid_atm_dynu, grid_atm_dynv, &
dxrect, dyrect, dxscale, dyscale, scale_dxdy, &
lonrefrect, latrefrect, save_ghte_ghtn
use ice_dyn_shared, only: ndte, kdyn, revised_evp, yield_curve, &
evp_algorithm, visc_method, &
seabed_stress, seabed_stress_method, &
k1, k2, alphab, threshold_hw, Ktens, &
e_yieldcurve, e_plasticpot, coriolis, &
ssh_stress, kridge, brlx, arlx, &
deltaminEVP, deltaminVP, capping, &
elasticDamp
use ice_dyn_vp, only: maxits_nonlin, precond, dim_fgmres, dim_pgmres, maxits_fgmres, &
maxits_pgmres, monitor_nonlin, monitor_fgmres, &
monitor_pgmres, reltol_nonlin, reltol_fgmres, reltol_pgmres, &
algo_nonlin, fpfunc_andacc, dim_andacc, reltol_andacc, &
damping_andacc, start_andacc, use_mean_vrel, ortho_type
use ice_transport_driver, only: advection, conserv_check
use ice_restoring, only: restore_ice
use ice_timers, only: timer_stats
use ice_memusage, only: memory_stats
use ice_fileunits, only: goto_nml
#ifdef CESMCOUPLED
use shr_file_mod, only: shr_file_setIO
#endif
! local variables
integer (kind=int_kind) :: &
nml_error, & ! namelist i/o error flag
n ! loop index
#ifdef CESMCOUPLED
logical :: exists
#endif
real (kind=dbl_kind) :: ustar_min, albicev, albicei, albsnowv, albsnowi, &
ahmax, R_ice, R_pnd, R_snw, dT_mlt, rsnw_mlt, emissivity, hi_min, &
mu_rdg, hs0, dpscale, rfracmin, rfracmax, pndaspect, hs1, hp1, &
a_rapid_mode, Rac_rapid_mode, aspect_rapid_mode, dSdt_slow_mode, &
phi_c_slow_mode, phi_i_mushy, kalg, atmiter_conv, Pstar, Cstar, &
sw_frac, sw_dtemp, floediam, hfrazilmin, iceruf, iceruf_ocn, &
rsnw_fall, rsnw_tmax, rhosnew, rhosmin, rhosmax, Tliquidus_max, &
windmin, drhosdwind, snwlvlfac
integer (kind=int_kind) :: ktherm, kstrength, krdg_partic, krdg_redist, natmiter, &
kitd, kcatbound, ktransport
character (len=char_len) :: shortwave, albedo_type, conduct, fbot_xfer_type, &
tfrz_option, saltflux_option, frzpnd, atmbndy, wave_spec_type, snwredist, snw_aging_table, &
capping_method, snw_ssp_table
logical (kind=log_kind) :: calc_Tsfc, formdrag, highfreq, calc_strair, wave_spec, &
sw_redist, calc_dragio, use_smliq_pnd, snwgrain
logical (kind=log_kind) :: tr_iage, tr_FY, tr_lvl, tr_pond
logical (kind=log_kind) :: tr_iso, tr_aero, tr_fsd, tr_snow
logical (kind=log_kind) :: tr_pond_lvl, tr_pond_topo
integer (kind=int_kind) :: numin, numax ! unit number limits
integer (kind=int_kind) :: rplvl, rptopo
real (kind=dbl_kind) :: Cf, ksno, puny, ice_ref_salinity, Tocnfrz
character (len=char_len) :: abort_list
character (len=char_len) :: nml_name ! namelist name
character (len=char_len_long) :: tmpstr2
character(len=*), parameter :: subname='(input_data)'
!-----------------------------------------------------------------
! Namelist variables
!-----------------------------------------------------------------
namelist /setup_nml/ &
days_per_year, use_leap_years, istep0, npt_unit, &
dt, npt, ndtd, numin, &
runtype, runid, bfbflag, numax, &
ice_ic, restart, restart_dir, restart_file, &
restart_ext, use_restart_time, restart_format, lcdf64, &
pointer_file, dumpfreq, dumpfreq_n, dump_last, &
diagfreq, diag_type, diag_file, history_format,&
hist_time_axis, &
print_global, print_points, latpnt, lonpnt, &
debug_forcing, histfreq, histfreq_n, hist_avg, &
hist_suffix, &
history_dir, history_file, history_precision, cpl_bgc, &
histfreq_base, dumpfreq_base, timer_stats, memory_stats, &
conserv_check, debug_model, debug_model_step, &
debug_model_i, debug_model_j, debug_model_iblk, debug_model_task, &
year_init, month_init, day_init, sec_init, &
write_ic, incond_dir, incond_file, version_name
namelist /grid_nml/ &
grid_format, grid_type, grid_file, kmt_file, &
bathymetry_file, use_bathymetry, nfsd, bathymetry_format, &
ncat, nilyr, nslyr, nblyr, &
kcatbound, gridcpl_file, dxrect, dyrect, &
dxscale, dyscale, lonrefrect, latrefrect, &
scale_dxdy, &
close_boundaries, orca_halogrid, grid_ice, kmt_type, &
grid_atm, grid_ocn
namelist /tracer_nml/ &
tr_iage, restart_age, &
tr_FY, restart_FY, &
tr_lvl, restart_lvl, &
tr_pond_lvl, restart_pond_lvl, &
tr_pond_topo, restart_pond_topo, &
tr_snow, restart_snow, &
tr_iso, restart_iso, &
tr_aero, restart_aero, &
tr_fsd, restart_fsd, &
n_iso, n_aero, n_zaero, n_algae, &
n_doc, n_dic, n_don, n_fed, n_fep
namelist /thermo_nml/ &
kitd, ktherm, conduct, ksno, &
a_rapid_mode, Rac_rapid_mode, aspect_rapid_mode, &
dSdt_slow_mode, phi_c_slow_mode, phi_i_mushy, &
floediam, hfrazilmin, Tliquidus_max, hi_min
namelist /dynamics_nml/ &
kdyn, ndte, revised_evp, yield_curve, &
evp_algorithm, elasticDamp, &
brlx, arlx, ssh_stress, &
advection, coriolis, kridge, ktransport, &
kstrength, krdg_partic, krdg_redist, mu_rdg, &
e_yieldcurve, e_plasticpot, visc_method, &
maxits_nonlin, precond, dim_fgmres, &
dim_pgmres, maxits_fgmres, maxits_pgmres, monitor_nonlin, &
monitor_fgmres, monitor_pgmres, reltol_nonlin, reltol_fgmres, &
reltol_pgmres, algo_nonlin, dim_andacc, reltol_andacc, &
damping_andacc, start_andacc, fpfunc_andacc, use_mean_vrel, &
ortho_type, seabed_stress, seabed_stress_method, &
k1, k2, alphab, threshold_hw, &
deltaminEVP, deltaminVP, capping_method, &
Cf, Pstar, Cstar, Ktens
namelist /shortwave_nml/ &
shortwave, albedo_type, snw_ssp_table, &
albicev, albicei, albsnowv, albsnowi, &
ahmax, R_ice, R_pnd, R_snw, &
sw_redist, sw_frac, sw_dtemp, &
dT_mlt, rsnw_mlt, kalg
namelist /ponds_nml/ &
hs0, dpscale, frzpnd, &
rfracmin, rfracmax, pndaspect, hs1, &
hp1
namelist /snow_nml/ &
snwredist, snwgrain, rsnw_fall, rsnw_tmax, &
rhosnew, rhosmin, rhosmax, snwlvlfac, &
windmin, drhosdwind, use_smliq_pnd, snw_aging_table,&
snw_filename, snw_rhos_fname, snw_Tgrd_fname,snw_T_fname, &
snw_tau_fname, snw_kappa_fname, snw_drdt0_fname
namelist /forcing_nml/ &
formdrag, atmbndy, calc_strair, calc_Tsfc, &
highfreq, natmiter, atmiter_conv, calc_dragio, &
ustar_min, emissivity, iceruf, iceruf_ocn, &
fbot_xfer_type, update_ocn_f, l_mpond_fresh, tfrz_option, &
saltflux_option,ice_ref_salinity,cpl_frazil, &
oceanmixed_ice, restore_ice, restore_ocn, trestore, &
precip_units, default_season, wave_spec_type,nfreq, &
atm_data_type, ocn_data_type, bgc_data_type, fe_data_type, &
ice_data_type, ice_data_conc, ice_data_dist, &
fyear_init, ycycle, wave_spec_file,restart_coszen, &
atm_data_dir, ocn_data_dir, bgc_data_dir, &
atm_data_format, ocn_data_format, rotate_wind, &
oceanmixed_file, atm_data_version
!-----------------------------------------------------------------
! default values
!-----------------------------------------------------------------
abort_list = ""
call icepack_query_parameters(puny_out=puny,Tocnfrz_out=Tocnfrz)
! nu_diag not yet defined
! call icepack_warnings_flush(nu_diag)
! if (icepack_warnings_aborted()) call abort_ice(error_message=subname//'Icepack Abort0', &
! file=__FILE__, line=__LINE__)
days_per_year = 365 ! number of days in a year
use_leap_years= .false.! if true, use leap years (Feb 29)
year_init = 0 ! initial year
month_init = 1 ! initial month
day_init = 1 ! initial day
sec_init = 0 ! initial second
istep0 = 0 ! no. of steps taken in previous integrations,
! real (dumped) or imagined (to set calendar)
#ifndef CESMCOUPLED
dt = 3600.0_dbl_kind ! time step, s
#endif
numin = 11 ! min allowed unit number
numax = 99 ! max allowed unit number
npt = 99999 ! total number of time steps (dt)
npt_unit = '1' ! units of npt 'y', 'm', 'd', 's', '1'
diagfreq = 24 ! how often diag output is written
debug_model = .false. ! debug output
debug_model_step = 0 ! debug model after this step number
debug_model_i = -1 ! debug model local i index
debug_model_j = -1 ! debug model local j index
debug_model_iblk = -1 ! debug model local iblk number
debug_model_task = -1 ! debug model local task number
print_points = .false. ! if true, print point data
print_global = .true. ! if true, print global diagnostic data
timer_stats = .false. ! if true, print out detailed timer statistics
memory_stats = .false. ! if true, print out memory information
bfbflag = 'off' ! off = optimized
diag_type = 'stdout'
diag_file = 'ice_diag.d'
histfreq(1) = '1' ! output frequency option for different streams
histfreq(2) = 'h' ! output frequency option for different streams
histfreq(3) = 'd' ! output frequency option for different streams
histfreq(4) = 'm' ! output frequency option for different streams
histfreq(5) = 'y' ! output frequency option for different streams
histfreq_n(:) = 1 ! output frequency
histfreq_base(:) = 'zero' ! output frequency reference date
hist_avg(:) = .true. ! if true, write time-averages (not snapshots)
hist_suffix(:) = 'x' ! appended to 'history_file' in filename when not 'x'
history_format = 'default' ! history file format
hist_time_axis = 'end' ! History file time axis averaging interval position
history_dir = './' ! write to executable dir for default
history_file = 'iceh' ! history file name prefix
history_precision = 4 ! precision of history files
write_ic = .false. ! write out initial condition
cpl_bgc = .false. ! couple bgc thru driver
incond_dir = history_dir ! write to history dir for default
incond_file = 'iceh_ic'! file prefix
dumpfreq(:)='x' ! restart frequency option
dumpfreq_n(:) = 1 ! restart frequency
dumpfreq_base(:) = 'init' ! restart frequency reference date
dumpfreq(1)='y' ! restart frequency option
dumpfreq_n(1) = 1 ! restart frequency
dump_last = .false. ! write restart on last time step
restart_dir = './' ! write to executable dir for default
restart_file = 'iced' ! restart file name prefix
restart_ext = .false. ! if true, read/write ghost cells
restart_coszen = .false. ! if true, read/write coszen
pointer_file = 'ice.restart_file'
restart_format = 'default' ! restart file format
lcdf64 = .false. ! 64 bit offset for netCDF
ice_ic = 'default' ! latitude and sst-dependent
grid_format = 'bin' ! file format ('bin'=binary or 'nc'=netcdf)
grid_type = 'rectangular'! define rectangular grid internally
grid_file = 'unknown_grid_file'
grid_ice = 'B' ! underlying grid system
grid_atm = 'A' ! underlying atm forcing/coupling grid
grid_ocn = 'A' ! underlying atm forcing/coupling grid
gridcpl_file = 'unknown_gridcpl_file'
orca_halogrid = .false. ! orca haloed grid
bathymetry_file = 'unknown_bathymetry_file'
bathymetry_format = 'default'
use_bathymetry = .false.
kmt_type = 'file'
kmt_file = 'unknown_kmt_file'
version_name = 'unknown_version_name'
ncat = 0 ! number of ice thickness categories
nfsd = 1 ! number of floe size categories (1 = default)
nilyr = 0 ! number of vertical ice layers
nslyr = 0 ! number of vertical snow layers
nblyr = 0 ! number of bio layers
kitd = 1 ! type of itd conversions (0 = delta, 1 = linear)
kcatbound = 1 ! category boundary formula (0 = old, 1 = new, etc)
kdyn = 1 ! type of dynamics (-1, 0 = off, 1 = evp, 2 = eap, 3 = vp)
ndtd = 1 ! dynamic time steps per thermodynamic time step
ndte = 120 ! subcycles per dynamics timestep: ndte=dt_dyn/dte
evp_algorithm = 'standard_2d' ! EVP kernel (standard_2d=standard cice evp; shared_mem_1d=1d shared memory and no mpi
elasticDamp = 0.36_dbl_kind ! coefficient for calculating the parameter E
save_ghte_ghtn = .false. ! if true, save global hte and htn (global ext.)
brlx = 300.0_dbl_kind ! revised_evp values. Otherwise overwritten in ice_dyn_shared
arlx = 300.0_dbl_kind ! revised_evp values. Otherwise overwritten in ice_dyn_shared
revised_evp = .false. ! if true, use revised procedure for evp dynamics
yield_curve = 'ellipse' ! yield curve
kstrength = 1 ! 1 = Rothrock 75 strength, 0 = Hibler 79
Pstar = 2.75e4_dbl_kind ! constant in Hibler strength formula (kstrength = 0)
Cstar = 20._dbl_kind ! constant in Hibler strength formula (kstrength = 0)
krdg_partic = 1 ! 1 = new participation, 0 = Thorndike et al 75
krdg_redist = 1 ! 1 = new redistribution, 0 = Hibler 80
mu_rdg = 3 ! e-folding scale of ridged ice, krdg_partic=1 (m^0.5)
Cf = 17.0_dbl_kind ! ratio of ridging work to PE change in ridging
ksno = 0.3_dbl_kind ! snow thermal conductivity
dxrect = 0.0_dbl_kind ! user defined grid spacing in cm in x direction
dyrect = 0.0_dbl_kind ! user defined grid spacing in cm in y direction
lonrefrect = -156.50_dbl_kind ! lower left corner lon for rectgrid
latrefrect = 71.35_dbl_kind ! lower left corner lat for rectgrid
scale_dxdy = .false. ! apply dxscale, dyscale to rectgrid
dxscale = 1.0_dbl_kind ! user defined rectgrid x-grid scale factor (e.g., 1.02)
dyscale = 1.0_dbl_kind ! user defined rectgrid y-grid scale factor (e.g., 1.02)
close_boundaries = .false. ! true = set land on edges of grid
seabed_stress= .false. ! if true, seabed stress for landfast is on
seabed_stress_method = 'LKD'! LKD = Lemieux et al 2015, probabilistic = Dupont et al. 2022
k1 = 7.5_dbl_kind ! 1st free parameter for landfast parameterization
k2 = 15.0_dbl_kind ! 2nd free parameter (N/m^3) for landfast parametrization
alphab = 20.0_dbl_kind ! alphab=Cb factor in Lemieux et al 2015
threshold_hw = 30.0_dbl_kind ! max water depth for grounding
Ktens = 0.0_dbl_kind ! T=Ktens*P (tensile strength: see Konig and Holland, 2010)
e_yieldcurve = 2.0_dbl_kind ! VP aspect ratio of elliptical yield curve
e_plasticpot = 2.0_dbl_kind ! VP aspect ratio of elliptical plastic potential
visc_method = 'avg_zeta' ! calc viscosities at U point: avg_strength, avg_zeta
deltaminEVP = 1e-11_dbl_kind ! minimum delta for viscosities (EVP, Hunke 2001)
deltaminVP = 2e-9_dbl_kind ! minimum delta for viscosities (VP, Hibler 1979)
capping_method = 'max' ! method for capping of viscosities (max=Hibler 1979,sum=Kreyscher2000)
maxits_nonlin = 10 ! max nb of iteration for nonlinear solver
precond = 'pgmres' ! preconditioner for fgmres: 'ident' (identity), 'diag' (diagonal),
! 'pgmres' (Jacobi-preconditioned GMRES)
dim_fgmres = 50 ! size of fgmres Krylov subspace
dim_pgmres = 5 ! size of pgmres Krylov subspace
maxits_fgmres = 50 ! max nb of iteration for fgmres
maxits_pgmres = 5 ! max nb of iteration for pgmres
monitor_nonlin = .false. ! print nonlinear residual norm
monitor_fgmres = .false. ! print fgmres residual norm
monitor_pgmres = .false. ! print pgmres residual norm
ortho_type = 'mgs' ! orthogonalization procedure 'cgs' or 'mgs'
reltol_nonlin = 1e-8_dbl_kind ! nonlinear stopping criterion: reltol_nonlin*res(k=0)
reltol_fgmres = 1e-1_dbl_kind ! fgmres stopping criterion: reltol_fgmres*res(k)
reltol_pgmres = 1e-6_dbl_kind ! pgmres stopping criterion: reltol_pgmres*res(k)
algo_nonlin = 'picard' ! nonlinear algorithm: 'picard' (Picard iteration), 'anderson' (Anderson acceleration)
fpfunc_andacc = 1 ! fixed point function for Anderson acceleration:
! 1: g(x) = FMGRES(A(x),b(x)), 2: g(x) = x - A(x)x + b(x)
dim_andacc = 5 ! size of Anderson minimization matrix (number of saved previous residuals)
reltol_andacc = 1e-6_dbl_kind ! relative tolerance for Anderson acceleration
damping_andacc = 0 ! damping factor for Anderson acceleration
start_andacc = 0 ! acceleration delay factor (acceleration starts at this iteration)
use_mean_vrel = .true. ! use mean of previous 2 iterates to compute vrel
advection = 'remap' ! incremental remapping transport scheme
conserv_check = .false. ! tracer conservation check
shortwave = 'ccsm3' ! 'ccsm3' or 'dEdd' (delta-Eddington)
snw_ssp_table = 'test' ! 'test' or 'snicar' dEdd_snicar_ad table data
albedo_type = 'ccsm3' ! 'ccsm3' or 'constant'
ktherm = 1 ! -1 = OFF, 1 = BL99, 2 = mushy thermo
conduct = 'bubbly' ! 'MU71' or 'bubbly' (Pringle et al 2007)
coriolis = 'latitude' ! latitude dependent, or 'constant'
ssh_stress = 'geostrophic' ! 'geostrophic' or 'coupled'
kridge = 1 ! -1 = off, 1 = on
ktransport = 1 ! -1 = off, 1 = on
calc_Tsfc = .true. ! calculate surface temperature
update_ocn_f = .false. ! include fresh water and salt fluxes for frazil
cpl_frazil = 'fresh_ice_correction' ! type of coupling for frazil ice
ustar_min = 0.005 ! minimum friction velocity for ocean heat flux (m/s)
hi_min = p01 ! minimum ice thickness allowed (m)
iceruf = 0.0005_dbl_kind ! ice surface roughness at atmosphere interface (m)
iceruf_ocn = 0.03_dbl_kind ! under-ice roughness (m)
calc_dragio = .false. ! compute dragio from iceruf_ocn and thickness of first ocean level
emissivity = 0.985 ! emissivity of snow and ice
l_mpond_fresh = .false. ! logical switch for including meltpond freshwater
! flux feedback to ocean model
fbot_xfer_type = 'constant' ! transfer coefficient type for ocn heat flux
R_ice = 0.00_dbl_kind ! tuning parameter for sea ice
R_pnd = 0.00_dbl_kind ! tuning parameter for ponded sea ice
R_snw = 1.50_dbl_kind ! tuning parameter for snow over sea ice
dT_mlt = 1.5_dbl_kind ! change in temp to give non-melt to melt change
! in snow grain radius
rsnw_mlt = 1500._dbl_kind ! maximum melting snow grain radius
kalg = 0.60_dbl_kind ! algae absorption coefficient for 0.5 m thick layer
! 0.5 m path of 75 mg Chl a / m2
hp1 = 0.01_dbl_kind ! critical pond lid thickness for topo ponds
hs0 = 0.03_dbl_kind ! snow depth for transition to bare sea ice (m)
hs1 = 0.03_dbl_kind ! snow depth for transition to bare pond ice (m)
dpscale = c1 ! alter e-folding time scale for flushing
frzpnd = 'cesm' ! melt pond refreezing parameterization
rfracmin = 0.15_dbl_kind ! minimum retained fraction of meltwater
rfracmax = 0.85_dbl_kind ! maximum retained fraction of meltwater
pndaspect = 0.8_dbl_kind ! ratio of pond depth to area fraction
snwredist = 'none' ! type of snow redistribution
snw_aging_table = 'test' ! snow aging lookup table
snw_filename = 'unknown' ! snowtable filename
snw_tau_fname = 'unknown' ! snowtable file tau fieldname
snw_kappa_fname = 'unknown' ! snowtable file kappa fieldname
snw_drdt0_fname = 'unknown' ! snowtable file drdt0 fieldname
snw_rhos_fname = 'unknown' ! snowtable file rhos fieldname
snw_Tgrd_fname = 'unknown' ! snowtable file Tgrd fieldname
snw_T_fname = 'unknown' ! snowtable file T fieldname
snwgrain = .false. ! snow metamorphosis
use_smliq_pnd = .false. ! use liquid in snow for ponds
rsnw_fall = 100.0_dbl_kind ! radius of new snow (10^-6 m) ! advanced snow physics: 54.526 x 10^-6 m
rsnw_tmax = 1500.0_dbl_kind ! maximum snow radius (10^-6 m)
rhosnew = 100.0_dbl_kind ! new snow density (kg/m^3)
rhosmin = 100.0_dbl_kind ! minimum snow density (kg/m^3)
rhosmax = 450.0_dbl_kind ! maximum snow density (kg/m^3)
windmin = 10.0_dbl_kind ! minimum wind speed to compact snow (m/s)
drhosdwind= 27.3_dbl_kind ! wind compaction factor for snow (kg s/m^4)
snwlvlfac = 0.3_dbl_kind ! fractional increase in snow depth for bulk redistribution
albicev = 0.78_dbl_kind ! visible ice albedo for h > ahmax
albicei = 0.36_dbl_kind ! near-ir ice albedo for h > ahmax
albsnowv = 0.98_dbl_kind ! cold snow albedo, visible
albsnowi = 0.70_dbl_kind ! cold snow albedo, near IR
ahmax = 0.3_dbl_kind ! thickness above which ice albedo is constant (m)
atmbndy = 'similarity' ! Atm boundary layer: 'similarity', 'constant' or 'mixed'
default_season = 'winter' ! default forcing data, if data is not read in
fyear_init = 1900 ! first year of forcing cycle
ycycle = 1 ! number of years in forcing cycle
atm_data_format = 'bin' ! file format ('bin'=binary or 'nc'=netcdf)
atm_data_type = 'default'
atm_data_dir = ' '
atm_data_version = '_undef' ! date atm_data_file was generated.
rotate_wind = .true. ! rotate wind/stress composants to computational grid orientation
calc_strair = .true. ! calculate wind stress
formdrag = .false. ! calculate form drag
highfreq = .false. ! calculate high frequency RASM coupling
natmiter = 5 ! number of iterations for atm boundary layer calcs
atmiter_conv = c0 ! ustar convergence criteria
precip_units = 'mks' ! 'mm_per_month' or
! 'mm_per_sec' = 'mks' = kg/m^2 s
tfrz_option = 'mushy' ! freezing temp formulation
saltflux_option = 'constant' ! saltflux calculation
ice_ref_salinity = 4.0_dbl_kind ! Ice reference salinity for coupling
oceanmixed_ice = .false. ! if true, use internal ocean mixed layer
wave_spec_type = 'none' ! type of wave spectrum forcing
nfreq = 25 ! number of wave frequencies
wave_spec_file = ' ' ! wave forcing file name
ocn_data_format = 'bin' ! file format ('bin'=binary or 'nc'=netcdf)
bgc_data_type = 'default'
fe_data_type = 'default'
ice_data_type = 'default' ! used by some tests to initialize ice state (overall type and mask)
ice_data_conc = 'default' ! used by some tests to initialize ice state (concentration)
ice_data_dist = 'default' ! used by some tests to initialize ice state (distribution)
bgc_data_dir = 'unknown_bgc_data_dir'
ocn_data_type = 'default'
ocn_data_dir = 'unknown_ocn_data_dir'
oceanmixed_file = 'unknown_oceanmixed_file' ! ocean forcing data
restore_ocn = .false. ! restore sst if true
trestore = 90 ! restoring timescale, days (0 instantaneous)
restore_ice = .false. ! restore ice state on grid edges if true
debug_forcing = .false. ! true writes diagnostics for input forcing
latpnt(1) = 90._dbl_kind ! latitude of diagnostic point 1 (deg)
lonpnt(1) = 0._dbl_kind ! longitude of point 1 (deg)
latpnt(2) = -65._dbl_kind ! latitude of diagnostic point 2 (deg)
lonpnt(2) = -45._dbl_kind ! longitude of point 2 (deg)
#ifndef CESMCOUPLED
runid = 'unknown' ! run ID used in CESM and for machine 'bering'
runtype = 'initial' ! run type: 'initial', 'continue'
restart = .false. ! if true, read ice state from restart file
use_restart_time = .false. ! if true, use time info written in file
#endif
! extra tracers
tr_iage = .false. ! ice age
restart_age = .false. ! ice age restart
tr_FY = .false. ! ice age
restart_FY = .false. ! ice age restart
tr_lvl = .false. ! level ice
restart_lvl = .false. ! level ice restart
tr_pond_lvl = .false. ! level-ice melt ponds
restart_pond_lvl = .false. ! melt ponds restart
tr_pond_topo = .false. ! explicit melt ponds (topographic)
restart_pond_topo = .false. ! melt ponds restart
tr_snow = .false. ! advanced snow physics
restart_snow = .false. ! advanced snow physics restart
tr_iso = .false. ! isotopes
restart_iso = .false. ! isotopes restart
tr_aero = .false. ! aerosols
restart_aero = .false. ! aerosols restart
tr_fsd = .false. ! floe size distribution
restart_fsd = .false. ! floe size distribution restart
n_iso = 0
n_aero = 0
n_zaero = 0
n_algae = 0
n_doc = 0
n_dic = 0
n_don = 0
n_fed = 0
n_fep = 0
! mushy layer gravity drainage physics
a_rapid_mode = 0.5e-3_dbl_kind ! channel radius for rapid drainage mode (m)
Rac_rapid_mode = 10.0_dbl_kind ! critical Rayleigh number
aspect_rapid_mode = 1.0_dbl_kind ! aspect ratio (larger is wider)
dSdt_slow_mode = -1.5e-7_dbl_kind ! slow mode drainage strength (m s-1 K-1)
phi_c_slow_mode = 0.05_dbl_kind ! critical liquid fraction porosity cutoff
phi_i_mushy = 0.85_dbl_kind ! liquid fraction of congelation ice
Tliquidus_max = 0.00_dbl_kind ! maximum liquidus temperature of mush (C)
floediam = 300.0_dbl_kind ! min thickness of new frazil ice (m)
hfrazilmin = 0.05_dbl_kind ! effective floe diameter (m)
! shortwave redistribution in the thermodynamics
sw_redist = .false.
sw_frac = 0.9_dbl_kind
sw_dtemp = 0.02_dbl_kind
!-----------------------------------------------------------------
! read from input file
!-----------------------------------------------------------------
#ifdef CESMCOUPLED
nml_filename = 'ice_in'//trim(inst_suffix)
#endif
if (my_task == master_task) then
! open namelist file
call get_fileunit(nu_nml)
open (nu_nml, file=trim(nml_filename), status='old',iostat=nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: open file '// &
trim(nml_filename), &
file=__FILE__, line=__LINE__)
endif
! read setup_nml
nml_name = 'setup_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=setup_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read grid_nml
nml_name = 'grid_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=grid_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: ' //trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read tracer_nml
nml_name = 'tracer_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=tracer_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: ' //trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read thermo_nml
nml_name = 'thermo_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=thermo_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read dynamics_nml
nml_name = 'dynamics_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=dynamics_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read shortwave_nml
nml_name = 'shortwave_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=shortwave_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '//&
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read ponds_nml
nml_name = 'ponds_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=ponds_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read snow_nml
nml_name = 'snow_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=snow_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '//trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! read forcing_nml
nml_name = 'forcing_nml'
write(nu_diag,*) subname,' Reading ', trim(nml_name)
! goto namelist in file
call goto_nml(nu_nml,trim(nml_name),nml_error)
if (nml_error /= 0) then
call abort_ice(subname//'ERROR: searching for '// trim(nml_name), &
file=__FILE__, line=__LINE__)
endif
! read namelist
nml_error = 1
do while (nml_error > 0)
read(nu_nml, nml=forcing_nml,iostat=nml_error)
! check if error
if (nml_error /= 0) then
! backspace and re-read erroneous line
backspace(nu_nml)
read(nu_nml,fmt='(A)') tmpstr2
call abort_ice(subname//'ERROR: '// trim(nml_name)//' reading '// &
trim(tmpstr2), file=__FILE__, line=__LINE__)
endif
end do
! done reading namelist.
close(nu_nml)
call release_fileunit(nu_nml)
endif
!-----------------------------------------------------------------
! set up diagnostics output and resolve conflicts
!-----------------------------------------------------------------
#ifdef CESMCOUPLED
! Note in CESMCOUPLED mode diag_file is not utilized and
! runid and runtype are obtained from the driver, not from the namelist
if (my_task == master_task) then
history_file = trim(runid) // ".cice" // trim(inst_suffix) //".h"
restart_file = trim(runid) // ".cice" // trim(inst_suffix) //".r"
incond_file = trim(runid) // ".cice" // trim(inst_suffix) //".i"
! Note by tcraig - this if test is needed because the nuopc cap sets
! nu_diag before this routine is called. This creates a conflict.
! In addition, in the nuopc cap, shr_file_setIO will fail if the
! needed namelist is missing (which it is in the CIME nuopc implementation)
if (.not. nu_diag_set) then
inquire(file='ice_modelio.nml'//trim(inst_suffix),exist=exists)
if (exists) then
call get_fileUnit(nu_diag)
call shr_file_setIO('ice_modelio.nml'//trim(inst_suffix),nu_diag)
end if
endif
else
! each task gets unique ice log filename when if test is true, for debugging
if (1 == 0) then
call get_fileUnit(nu_diag)
write(tmpstr2,'(a,i4.4)') "ice.log.task_",my_task
open(nu_diag,file=tmpstr2)
endif
end if
if (trim(ice_ic) /= 'default' .and. &
trim(ice_ic) /= 'none' .and. &
trim(ice_ic) /= 'internal') then
restart = .true.
end if
#else
if (trim(diag_type) == 'file') call get_fileunit(nu_diag)
#endif
!-----------------------------------------------------------------
! broadcast namelist settings
!-----------------------------------------------------------------
call broadcast_scalar(numin, master_task)
call broadcast_scalar(numax, master_task)
call broadcast_scalar(days_per_year, master_task)
call broadcast_scalar(use_leap_years, master_task)
call broadcast_scalar(year_init, master_task)
call broadcast_scalar(month_init, master_task)
call broadcast_scalar(day_init, master_task)
call broadcast_scalar(sec_init, master_task)
call broadcast_scalar(istep0, master_task)
call broadcast_scalar(dt, master_task)
call broadcast_scalar(npt, master_task)
call broadcast_scalar(npt_unit, master_task)
call broadcast_scalar(diagfreq, master_task)
call broadcast_scalar(debug_model, master_task)
call broadcast_scalar(debug_model_step, master_task)
call broadcast_scalar(debug_model_i, master_task)
call broadcast_scalar(debug_model_j, master_task)
call broadcast_scalar(debug_model_iblk, master_task)
call broadcast_scalar(debug_model_task, master_task)
call broadcast_scalar(print_points, master_task)
call broadcast_scalar(print_global, master_task)
call broadcast_scalar(timer_stats, master_task)
call broadcast_scalar(memory_stats, master_task)
call broadcast_scalar(bfbflag, master_task)
call broadcast_scalar(diag_type, master_task)
call broadcast_scalar(diag_file, master_task)
do n = 1, max_nstrm
call broadcast_scalar(histfreq(n), master_task)
call broadcast_scalar(histfreq_base(n), master_task)
call broadcast_scalar(dumpfreq(n), master_task)
call broadcast_scalar(dumpfreq_base(n), master_task)
call broadcast_scalar(hist_suffix(n), master_task)
enddo
call broadcast_array(hist_avg, master_task)
call broadcast_array(histfreq_n, master_task)
call broadcast_array(dumpfreq_n, master_task)
call broadcast_scalar(history_dir, master_task)
call broadcast_scalar(history_file, master_task)
call broadcast_scalar(history_precision, master_task)
call broadcast_scalar(history_format, master_task)
call broadcast_scalar(hist_time_axis, master_task)
call broadcast_scalar(write_ic, master_task)
call broadcast_scalar(cpl_bgc, master_task)
call broadcast_scalar(incond_dir, master_task)
call broadcast_scalar(incond_file, master_task)
call broadcast_scalar(dump_last, master_task)
call broadcast_scalar(restart_file, master_task)
call broadcast_scalar(restart, master_task)
call broadcast_scalar(restart_dir, master_task)
call broadcast_scalar(restart_ext, master_task)
call broadcast_scalar(restart_coszen, master_task)
call broadcast_scalar(use_restart_time, master_task)
call broadcast_scalar(restart_format, master_task)
call broadcast_scalar(lcdf64, master_task)
call broadcast_scalar(pointer_file, master_task)
call broadcast_scalar(ice_ic, master_task)
call broadcast_scalar(grid_format, master_task)
call broadcast_scalar(dxrect, master_task)
call broadcast_scalar(dyrect, master_task)
call broadcast_scalar(scale_dxdy, master_task)
call broadcast_scalar(dxscale, master_task)
call broadcast_scalar(dyscale, master_task)
call broadcast_scalar(lonrefrect, master_task)
call broadcast_scalar(latrefrect, master_task)
call broadcast_scalar(close_boundaries, master_task)
call broadcast_scalar(grid_type, master_task)
call broadcast_scalar(grid_ice, master_task)
call broadcast_scalar(grid_ocn, master_task)
call broadcast_scalar(grid_atm, master_task)
call broadcast_scalar(grid_file, master_task)
call broadcast_scalar(gridcpl_file, master_task)
call broadcast_scalar(orca_halogrid, master_task)
call broadcast_scalar(bathymetry_file, master_task)
call broadcast_scalar(bathymetry_format, master_task)
call broadcast_scalar(use_bathymetry, master_task)
call broadcast_scalar(kmt_type, master_task)
call broadcast_scalar(kmt_file, master_task)
call broadcast_scalar(kitd, master_task)
call broadcast_scalar(kcatbound, master_task)
call broadcast_scalar(kdyn, master_task)
call broadcast_scalar(ndtd, master_task)
call broadcast_scalar(ndte, master_task)
call broadcast_scalar(evp_algorithm, master_task)
call broadcast_scalar(elasticDamp, master_task)
call broadcast_scalar(brlx, master_task)
call broadcast_scalar(arlx, master_task)
call broadcast_scalar(revised_evp, master_task)
call broadcast_scalar(yield_curve, master_task)
call broadcast_scalar(kstrength, master_task)
call broadcast_scalar(Pstar, master_task)
call broadcast_scalar(Cstar, master_task)
call broadcast_scalar(krdg_partic, master_task)
call broadcast_scalar(krdg_redist, master_task)
call broadcast_scalar(mu_rdg, master_task)
call broadcast_scalar(Cf, master_task)
call broadcast_scalar(ksno, master_task)
call broadcast_scalar(seabed_stress, master_task)
call broadcast_scalar(seabed_stress_method, master_task)
call broadcast_scalar(k1, master_task)
call broadcast_scalar(k2, master_task)
call broadcast_scalar(alphab, master_task)
call broadcast_scalar(threshold_hw, master_task)
call broadcast_scalar(Ktens, master_task)
call broadcast_scalar(e_yieldcurve, master_task)
call broadcast_scalar(e_plasticpot, master_task)
call broadcast_scalar(visc_method, master_task)
call broadcast_scalar(deltaminEVP, master_task)
call broadcast_scalar(deltaminVP, master_task)
call broadcast_scalar(capping_method, master_task)
call broadcast_scalar(advection, master_task)
call broadcast_scalar(conserv_check, master_task)
call broadcast_scalar(shortwave, master_task)
call broadcast_scalar(snw_ssp_table, master_task)
call broadcast_scalar(albedo_type, master_task)
call broadcast_scalar(ktherm, master_task)
call broadcast_scalar(coriolis, master_task)