[8586] | 1 | MODULE iceistate |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE iceistate *** |
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| 4 | !! sea-ice : Initialization of ice variables |
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| 5 | !!====================================================================== |
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[9604] | 6 | !! History : 2.0 ! 2004-01 (C. Ethe, G. Madec) Original code |
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| 7 | !! 3.0 ! 2007 (M. Vancoppenolle) Rewrite for ice cats |
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| 8 | !! 4.0 ! 2018 (many people) SI3 [aka Sea Ice cube] |
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[8586] | 9 | !!---------------------------------------------------------------------- |
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[9570] | 10 | #if defined key_si3 |
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[8586] | 11 | !!---------------------------------------------------------------------- |
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[9570] | 12 | !! 'key_si3' SI3 sea-ice model |
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[8586] | 13 | !!---------------------------------------------------------------------- |
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| 14 | !! ice_istate : initialization of diagnostics ice variables |
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| 15 | !! ice_istate_init : initialization of ice state and namelist read |
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| 16 | !!---------------------------------------------------------------------- |
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| 17 | USE phycst ! physical constant |
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| 18 | USE oce ! dynamics and tracers variables |
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| 19 | USE dom_oce ! ocean domain |
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| 20 | USE sbc_oce , ONLY : sst_m, sss_m, ln_ice_embd |
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| 21 | USE sbc_ice , ONLY : tn_ice, snwice_mass, snwice_mass_b |
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| 22 | USE eosbn2 ! equation of state |
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| 23 | USE domvvl ! Variable volume |
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[11536] | 24 | USE ice ! sea-ice: variables |
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| 25 | USE ice1D ! sea-ice: thermodynamics variables |
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| 26 | USE icetab ! sea-ice: 1D <==> 2D transformation |
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| 27 | USE icevar ! sea-ice: operations |
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[8586] | 28 | ! |
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| 29 | USE in_out_manager ! I/O manager |
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| 30 | USE iom ! I/O manager library |
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| 31 | USE lib_mpp ! MPP library |
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| 32 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
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| 33 | USE fldread ! read input fields |
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| 34 | |
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[13216] | 35 | # if defined key_agrif |
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| 36 | USE agrif_oce |
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| 37 | USE agrif_ice |
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| 38 | USE agrif_ice_interp |
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| 39 | # endif |
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| 40 | |
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[8586] | 41 | IMPLICIT NONE |
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| 42 | PRIVATE |
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| 43 | |
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| 44 | PUBLIC ice_istate ! called by icestp.F90 |
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| 45 | PUBLIC ice_istate_init ! called by icestp.F90 |
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| 46 | ! |
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[8813] | 47 | ! !! ** namelist (namini) ** |
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[11536] | 48 | LOGICAL, PUBLIC :: ln_iceini !: Ice initialization or not |
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[13798] | 49 | INTEGER, PUBLIC :: nn_iceini_file !: Ice initialization: |
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| 50 | ! 0 = Initialise sea ice based on SSTs |
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| 51 | ! 1 = Initialise sea ice from single category netcdf file |
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| 52 | ! 2 = Initialise sea ice from multi category restart file |
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[11536] | 53 | REAL(wp) :: rn_thres_sst |
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| 54 | REAL(wp) :: rn_hti_ini_n, rn_hts_ini_n, rn_ati_ini_n, rn_smi_ini_n, rn_tmi_ini_n, rn_tsu_ini_n, rn_tms_ini_n |
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| 55 | REAL(wp) :: rn_hti_ini_s, rn_hts_ini_s, rn_ati_ini_s, rn_smi_ini_s, rn_tmi_ini_s, rn_tsu_ini_s, rn_tms_ini_s |
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[13798] | 56 | REAL(wp) :: rn_apd_ini_n, rn_hpd_ini_n, rn_hld_ini_n |
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| 57 | REAL(wp) :: rn_apd_ini_s, rn_hpd_ini_s, rn_hld_ini_s |
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[11536] | 58 | ! |
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[13798] | 59 | ! ! if nn_iceini_file = 1 |
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| 60 | INTEGER , PARAMETER :: jpfldi = 10 ! maximum number of files to read |
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[11536] | 61 | INTEGER , PARAMETER :: jp_hti = 1 ! index of ice thickness (m) |
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| 62 | INTEGER , PARAMETER :: jp_hts = 2 ! index of snw thickness (m) |
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| 63 | INTEGER , PARAMETER :: jp_ati = 3 ! index of ice fraction (-) |
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| 64 | INTEGER , PARAMETER :: jp_smi = 4 ! index of ice salinity (g/kg) |
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| 65 | INTEGER , PARAMETER :: jp_tmi = 5 ! index of ice temperature (K) |
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| 66 | INTEGER , PARAMETER :: jp_tsu = 6 ! index of ice surface temp (K) |
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| 67 | INTEGER , PARAMETER :: jp_tms = 7 ! index of snw temperature (K) |
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| 68 | INTEGER , PARAMETER :: jp_apd = 8 ! index of pnd fraction (-) |
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| 69 | INTEGER , PARAMETER :: jp_hpd = 9 ! index of pnd depth (m) |
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[13798] | 70 | INTEGER , PARAMETER :: jp_hld = 10 ! index of pnd lid depth (m) |
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[11536] | 71 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: si ! structure of input fields (file informations, fields read) |
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[13237] | 72 | |
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[12377] | 73 | !! * Substitutions |
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| 74 | # include "do_loop_substitute.h90" |
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[8586] | 75 | !!---------------------------------------------------------------------- |
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[9598] | 76 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
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[10069] | 77 | !! $Id$ |
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[10413] | 78 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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[8586] | 79 | !!---------------------------------------------------------------------- |
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| 80 | CONTAINS |
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| 81 | |
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[12377] | 82 | SUBROUTINE ice_istate( kt, Kbb, Kmm, Kaa ) |
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[8586] | 83 | !!------------------------------------------------------------------- |
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| 84 | !! *** ROUTINE ice_istate *** |
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| 85 | !! |
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| 86 | !! ** Purpose : defined the sea-ice initial state |
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| 87 | !! |
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| 88 | !! ** Method : This routine will put some ice where ocean |
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| 89 | !! is at the freezing point, then fill in ice |
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| 90 | !! state variables using prescribed initial |
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| 91 | !! values in the namelist |
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| 92 | !! |
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| 93 | !! ** Steps : 1) Set initial surface and basal temperatures |
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| 94 | !! 2) Recompute or read sea ice state variables |
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[13798] | 95 | !! 3) Fill in space-dependent arrays for state variables |
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| 96 | !! 4) snow-ice mass computation |
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[8586] | 97 | !! |
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| 98 | !! ** Notes : o_i, t_su, t_s, t_i, sz_i must be filled everywhere, even |
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[11536] | 99 | !! where there is no ice |
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[8586] | 100 | !!-------------------------------------------------------------------- |
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[12377] | 101 | INTEGER, INTENT(in) :: kt ! time step |
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| 102 | INTEGER, INTENT(in) :: Kbb, Kmm, Kaa ! ocean time level indices |
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| 103 | ! |
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[8813] | 104 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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[11536] | 105 | REAL(wp) :: ztmelts |
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[8586] | 106 | INTEGER , DIMENSION(4) :: itest |
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| 107 | REAL(wp), DIMENSION(jpi,jpj) :: z2d |
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| 108 | REAL(wp), DIMENSION(jpi,jpj) :: zswitch ! ice indicator |
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[11536] | 109 | REAL(wp), DIMENSION(jpi,jpj) :: zht_i_ini, zat_i_ini, ztm_s_ini !data from namelist or nc file |
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| 110 | REAL(wp), DIMENSION(jpi,jpj) :: zt_su_ini, zht_s_ini, zsm_i_ini, ztm_i_ini !data from namelist or nc file |
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[13798] | 111 | REAL(wp), DIMENSION(jpi,jpj) :: zapnd_ini, zhpnd_ini, zhlid_ini !data from namelist or nc file |
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| 112 | REAL(wp), DIMENSION(jpi,jpj,jpl) :: zti_3d , zts_3d !temporary arrays |
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[11536] | 113 | !! |
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[13798] | 114 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: zhi_2d, zhs_2d, zai_2d, zti_2d, zts_2d, ztsu_2d, zsi_2d, zaip_2d, zhip_2d, zhil_2d |
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[8586] | 115 | !-------------------------------------------------------------------- |
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| 116 | |
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| 117 | IF(lwp) WRITE(numout,*) |
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| 118 | IF(lwp) WRITE(numout,*) 'ice_istate: sea-ice initialization ' |
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| 119 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 120 | |
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[11536] | 121 | !--------------------------- |
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| 122 | ! 1) 1st init. of the fields |
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| 123 | !--------------------------- |
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[8586] | 124 | ! |
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[11536] | 125 | ! basal temperature (considered at freezing point) [Kelvin] |
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| 126 | CALL eos_fzp( sss_m(:,:), t_bo(:,:) ) |
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| 127 | t_bo(:,:) = ( t_bo(:,:) + rt0 ) * tmask(:,:,1) |
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| 128 | ! |
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| 129 | ! surface temperature and conductivity |
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[8586] | 130 | DO jl = 1, jpl |
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[9416] | 131 | t_su (:,:,jl) = rt0 * tmask(:,:,1) ! temp at the surface |
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[10534] | 132 | cnd_ice(:,:,jl) = 0._wp ! initialisation of the effective conductivity at the top of ice/snow (ln_cndflx=T) |
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[8586] | 133 | END DO |
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[8813] | 134 | ! |
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[11536] | 135 | ! ice and snw temperatures |
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| 136 | DO jl = 1, jpl |
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| 137 | DO jk = 1, nlay_i |
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| 138 | t_i(:,:,jk,jl) = rt0 * tmask(:,:,1) |
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| 139 | END DO |
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| 140 | DO jk = 1, nlay_s |
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| 141 | t_s(:,:,jk,jl) = rt0 * tmask(:,:,1) |
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| 142 | END DO |
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| 143 | END DO |
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| 144 | ! |
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| 145 | ! specific temperatures for coupled runs |
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| 146 | tn_ice (:,:,:) = t_i (:,:,1,:) |
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| 147 | t1_ice (:,:,:) = t_i (:,:,1,:) |
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[8586] | 148 | |
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[11536] | 149 | ! heat contents |
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| 150 | e_i (:,:,:,:) = 0._wp |
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| 151 | e_s (:,:,:,:) = 0._wp |
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| 152 | |
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| 153 | ! general fields |
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| 154 | a_i (:,:,:) = 0._wp |
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| 155 | v_i (:,:,:) = 0._wp |
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| 156 | v_s (:,:,:) = 0._wp |
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| 157 | sv_i(:,:,:) = 0._wp |
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| 158 | oa_i(:,:,:) = 0._wp |
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| 159 | ! |
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| 160 | h_i (:,:,:) = 0._wp |
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| 161 | h_s (:,:,:) = 0._wp |
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| 162 | s_i (:,:,:) = 0._wp |
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| 163 | o_i (:,:,:) = 0._wp |
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| 164 | ! |
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| 165 | ! melt ponds |
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| 166 | a_ip (:,:,:) = 0._wp |
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| 167 | v_ip (:,:,:) = 0._wp |
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[13798] | 168 | v_il (:,:,:) = 0._wp |
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| 169 | a_ip_eff (:,:,:) = 0._wp |
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[11536] | 170 | h_ip (:,:,:) = 0._wp |
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[13798] | 171 | h_il (:,:,:) = 0._wp |
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[11536] | 172 | ! |
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| 173 | ! ice velocities |
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| 174 | u_ice (:,:) = 0._wp |
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| 175 | v_ice (:,:) = 0._wp |
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| 176 | ! |
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| 177 | !------------------------------------------------------------------------ |
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| 178 | ! 2) overwrite some of the fields with namelist parameters or netcdf file |
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| 179 | !------------------------------------------------------------------------ |
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[8586] | 180 | IF( ln_iceini ) THEN |
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[13798] | 181 | ! |
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[13216] | 182 | IF( Agrif_Root() ) THEN |
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[13798] | 183 | ! !---------------! |
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| 184 | IF( nn_iceini_file == 1 )THEN ! Read a file ! |
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[13216] | 185 | ! !---------------! |
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| 186 | WHERE( ff_t(:,:) >= 0._wp ) ; zswitch(:,:) = 1._wp |
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| 187 | ELSEWHERE ; zswitch(:,:) = 0._wp |
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| 188 | END WHERE |
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| 189 | ! |
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| 190 | CALL fld_read( kt, 1, si ) ! input fields provided at the current time-step |
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| 191 | ! |
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| 192 | ! -- mandatory fields -- ! |
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| 193 | zht_i_ini(:,:) = si(jp_hti)%fnow(:,:,1) * tmask(:,:,1) |
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| 194 | zht_s_ini(:,:) = si(jp_hts)%fnow(:,:,1) * tmask(:,:,1) |
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| 195 | zat_i_ini(:,:) = si(jp_ati)%fnow(:,:,1) * tmask(:,:,1) |
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| 196 | |
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| 197 | ! -- optional fields -- ! |
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[13798] | 198 | ! if fields do not exist then set them to the values present in the namelist (except for temperatures) |
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[13216] | 199 | ! |
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| 200 | ! ice salinity |
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| 201 | IF( TRIM(si(jp_smi)%clrootname) == 'NOT USED' ) & |
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| 202 | & si(jp_smi)%fnow(:,:,1) = ( rn_smi_ini_n * zswitch + rn_smi_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 203 | ! |
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| 204 | ! temperatures |
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| 205 | IF ( TRIM(si(jp_tmi)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tsu)%clrootname) == 'NOT USED' .AND. & |
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| 206 | & TRIM(si(jp_tms)%clrootname) == 'NOT USED' ) THEN |
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| 207 | si(jp_tmi)%fnow(:,:,1) = ( rn_tmi_ini_n * zswitch + rn_tmi_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 208 | si(jp_tsu)%fnow(:,:,1) = ( rn_tsu_ini_n * zswitch + rn_tsu_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 209 | si(jp_tms)%fnow(:,:,1) = ( rn_tms_ini_n * zswitch + rn_tms_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 210 | ENDIF |
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[13798] | 211 | IF( TRIM(si(jp_tmi)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tms)%clrootname) /= 'NOT USED' ) & ! if T_s is read and not T_i, set T_i = (T_s + T_freeze)/2 |
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| 212 | & si(jp_tmi)%fnow(:,:,1) = 0.5_wp * ( si(jp_tms)%fnow(:,:,1) + 271.15 ) |
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| 213 | IF( TRIM(si(jp_tmi)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tsu)%clrootname) /= 'NOT USED' ) & ! if T_su is read and not T_i, set T_i = (T_su + T_freeze)/2 |
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| 214 | & si(jp_tmi)%fnow(:,:,1) = 0.5_wp * ( si(jp_tsu)%fnow(:,:,1) + 271.15 ) |
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| 215 | IF( TRIM(si(jp_tsu)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tms)%clrootname) /= 'NOT USED' ) & ! if T_s is read and not T_su, set T_su = T_s |
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| 216 | & si(jp_tsu)%fnow(:,:,1) = si(jp_tms)%fnow(:,:,1) |
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| 217 | IF( TRIM(si(jp_tsu)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tmi)%clrootname) /= 'NOT USED' ) & ! if T_i is read and not T_su, set T_su = T_i |
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| 218 | & si(jp_tsu)%fnow(:,:,1) = si(jp_tmi)%fnow(:,:,1) |
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| 219 | IF( TRIM(si(jp_tms)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tsu)%clrootname) /= 'NOT USED' ) & ! if T_su is read and not T_s, set T_s = T_su |
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| 220 | & si(jp_tms)%fnow(:,:,1) = si(jp_tsu)%fnow(:,:,1) |
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| 221 | IF( TRIM(si(jp_tms)%clrootname) == 'NOT USED' .AND. TRIM(si(jp_tmi)%clrootname) /= 'NOT USED' ) & ! if T_i is read and not T_s, set T_s = T_i |
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| 222 | & si(jp_tms)%fnow(:,:,1) = si(jp_tmi)%fnow(:,:,1) |
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[13216] | 223 | ! |
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| 224 | ! pond concentration |
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| 225 | IF( TRIM(si(jp_apd)%clrootname) == 'NOT USED' ) & |
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| 226 | & si(jp_apd)%fnow(:,:,1) = ( rn_apd_ini_n * zswitch + rn_apd_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) & ! rn_apd = pond fraction => rn_apnd * a_i = pond conc. |
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| 227 | & * si(jp_ati)%fnow(:,:,1) |
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| 228 | ! |
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| 229 | ! pond depth |
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| 230 | IF( TRIM(si(jp_hpd)%clrootname) == 'NOT USED' ) & |
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| 231 | & si(jp_hpd)%fnow(:,:,1) = ( rn_hpd_ini_n * zswitch + rn_hpd_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 232 | ! |
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[13798] | 233 | ! pond lid depth |
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| 234 | IF( TRIM(si(jp_hld)%clrootname) == 'NOT USED' ) & |
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| 235 | & si(jp_hld)%fnow(:,:,1) = ( rn_hld_ini_n * zswitch + rn_hld_ini_s * (1._wp - zswitch) ) * tmask(:,:,1) |
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| 236 | ! |
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[13216] | 237 | zsm_i_ini(:,:) = si(jp_smi)%fnow(:,:,1) * tmask(:,:,1) |
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| 238 | ztm_i_ini(:,:) = si(jp_tmi)%fnow(:,:,1) * tmask(:,:,1) |
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| 239 | zt_su_ini(:,:) = si(jp_tsu)%fnow(:,:,1) * tmask(:,:,1) |
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| 240 | ztm_s_ini(:,:) = si(jp_tms)%fnow(:,:,1) * tmask(:,:,1) |
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| 241 | zapnd_ini(:,:) = si(jp_apd)%fnow(:,:,1) * tmask(:,:,1) |
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| 242 | zhpnd_ini(:,:) = si(jp_hpd)%fnow(:,:,1) * tmask(:,:,1) |
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[13798] | 243 | zhlid_ini(:,:) = si(jp_hld)%fnow(:,:,1) * tmask(:,:,1) |
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[13216] | 244 | ! |
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| 245 | ! change the switch for the following |
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| 246 | WHERE( zat_i_ini(:,:) > 0._wp ) ; zswitch(:,:) = tmask(:,:,1) |
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| 247 | ELSEWHERE ; zswitch(:,:) = 0._wp |
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| 248 | END WHERE |
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| 249 | |
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| 250 | ! !---------------! |
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| 251 | ELSE ! Read namelist ! |
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| 252 | ! !---------------! |
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| 253 | ! no ice if (sst - Tfreez) >= thresold |
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| 254 | WHERE( ( sst_m(:,:) - (t_bo(:,:) - rt0) ) * tmask(:,:,1) >= rn_thres_sst ) ; zswitch(:,:) = 0._wp |
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| 255 | ELSEWHERE ; zswitch(:,:) = tmask(:,:,1) |
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| 256 | END WHERE |
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| 257 | ! |
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| 258 | ! assign initial thickness, concentration, snow depth and salinity to an hemisphere-dependent array |
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| 259 | WHERE( ff_t(:,:) >= 0._wp ) |
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| 260 | zht_i_ini(:,:) = rn_hti_ini_n * zswitch(:,:) |
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| 261 | zht_s_ini(:,:) = rn_hts_ini_n * zswitch(:,:) |
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| 262 | zat_i_ini(:,:) = rn_ati_ini_n * zswitch(:,:) |
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| 263 | zsm_i_ini(:,:) = rn_smi_ini_n * zswitch(:,:) |
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| 264 | ztm_i_ini(:,:) = rn_tmi_ini_n * zswitch(:,:) |
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| 265 | zt_su_ini(:,:) = rn_tsu_ini_n * zswitch(:,:) |
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| 266 | ztm_s_ini(:,:) = rn_tms_ini_n * zswitch(:,:) |
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| 267 | zapnd_ini(:,:) = rn_apd_ini_n * zswitch(:,:) * zat_i_ini(:,:) ! rn_apd = pond fraction => rn_apd * a_i = pond conc. |
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| 268 | zhpnd_ini(:,:) = rn_hpd_ini_n * zswitch(:,:) |
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[13798] | 269 | zhlid_ini(:,:) = rn_hld_ini_n * zswitch(:,:) |
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[13216] | 270 | ELSEWHERE |
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| 271 | zht_i_ini(:,:) = rn_hti_ini_s * zswitch(:,:) |
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| 272 | zht_s_ini(:,:) = rn_hts_ini_s * zswitch(:,:) |
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| 273 | zat_i_ini(:,:) = rn_ati_ini_s * zswitch(:,:) |
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| 274 | zsm_i_ini(:,:) = rn_smi_ini_s * zswitch(:,:) |
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| 275 | ztm_i_ini(:,:) = rn_tmi_ini_s * zswitch(:,:) |
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| 276 | zt_su_ini(:,:) = rn_tsu_ini_s * zswitch(:,:) |
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| 277 | ztm_s_ini(:,:) = rn_tms_ini_s * zswitch(:,:) |
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| 278 | zapnd_ini(:,:) = rn_apd_ini_s * zswitch(:,:) * zat_i_ini(:,:) ! rn_apd = pond fraction => rn_apd * a_i = pond conc. |
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| 279 | zhpnd_ini(:,:) = rn_hpd_ini_s * zswitch(:,:) |
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[13798] | 280 | zhlid_ini(:,:) = rn_hld_ini_s * zswitch(:,:) |
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[13216] | 281 | END WHERE |
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| 282 | ! |
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[11536] | 283 | ENDIF |
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[13216] | 284 | |
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| 285 | |
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| 286 | |
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| 287 | ! make sure ponds = 0 if no ponds scheme |
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| 288 | IF ( .NOT.ln_pnd ) THEN |
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| 289 | zapnd_ini(:,:) = 0._wp |
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| 290 | zhpnd_ini(:,:) = 0._wp |
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[13798] | 291 | zhlid_ini(:,:) = 0._wp |
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[13216] | 292 | ENDIF |
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| 293 | |
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[13798] | 294 | IF ( .NOT.ln_pnd_lids ) THEN |
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| 295 | zhlid_ini(:,:) = 0._wp |
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| 296 | ENDIF |
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| 297 | |
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| 298 | !----------------! |
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| 299 | ! 3) fill fields ! |
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| 300 | !----------------! |
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[13216] | 301 | ! select ice covered grid points |
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| 302 | npti = 0 ; nptidx(:) = 0 |
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[13295] | 303 | DO_2D( 1, 1, 1, 1 ) |
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[13216] | 304 | IF ( zht_i_ini(ji,jj) > 0._wp ) THEN |
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| 305 | npti = npti + 1 |
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| 306 | nptidx(npti) = (jj - 1) * jpi + ji |
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| 307 | ENDIF |
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| 308 | END_2D |
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| 309 | |
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| 310 | ! move to 1D arrays: (jpi,jpj) -> (jpi*jpj) |
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| 311 | CALL tab_2d_1d( npti, nptidx(1:npti), h_i_1d (1:npti) , zht_i_ini ) |
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| 312 | CALL tab_2d_1d( npti, nptidx(1:npti), h_s_1d (1:npti) , zht_s_ini ) |
---|
| 313 | CALL tab_2d_1d( npti, nptidx(1:npti), at_i_1d(1:npti) , zat_i_ini ) |
---|
| 314 | CALL tab_2d_1d( npti, nptidx(1:npti), t_i_1d (1:npti,1), ztm_i_ini ) |
---|
| 315 | CALL tab_2d_1d( npti, nptidx(1:npti), t_s_1d (1:npti,1), ztm_s_ini ) |
---|
| 316 | CALL tab_2d_1d( npti, nptidx(1:npti), t_su_1d(1:npti) , zt_su_ini ) |
---|
| 317 | CALL tab_2d_1d( npti, nptidx(1:npti), s_i_1d (1:npti) , zsm_i_ini ) |
---|
| 318 | CALL tab_2d_1d( npti, nptidx(1:npti), a_ip_1d(1:npti) , zapnd_ini ) |
---|
| 319 | CALL tab_2d_1d( npti, nptidx(1:npti), h_ip_1d(1:npti) , zhpnd_ini ) |
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[13798] | 320 | CALL tab_2d_1d( npti, nptidx(1:npti), h_il_1d(1:npti) , zhlid_ini ) |
---|
| 321 | |
---|
| 322 | ! allocate temporary arrays |
---|
| 323 | ALLOCATE( zhi_2d (npti,jpl), zhs_2d (npti,jpl), zai_2d (npti,jpl), & |
---|
| 324 | & zti_2d (npti,jpl), zts_2d (npti,jpl), ztsu_2d(npti,jpl), zsi_2d(npti,jpl), & |
---|
| 325 | & zaip_2d(npti,jpl), zhip_2d(npti,jpl), zhil_2d(npti,jpl) ) |
---|
[13216] | 326 | |
---|
| 327 | ! distribute 1-cat into jpl-cat: (jpi*jpj) -> (jpi*jpj,jpl) |
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[13798] | 328 | CALL ice_var_itd( h_i_1d(1:npti) , h_s_1d(1:npti) , at_i_1d(1:npti), & |
---|
| 329 | & zhi_2d , zhs_2d , zai_2d , & |
---|
| 330 | & t_i_1d(1:npti,1), t_s_1d(1:npti,1), t_su_1d(1:npti), & |
---|
| 331 | & s_i_1d(1:npti) , a_ip_1d(1:npti) , h_ip_1d(1:npti), h_il_1d(1:npti), & |
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| 332 | & zti_2d , zts_2d , ztsu_2d , & |
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| 333 | & zsi_2d , zaip_2d , zhip_2d , zhil_2d ) |
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[13216] | 334 | |
---|
| 335 | ! move to 3D arrays: (jpi*jpj,jpl) -> (jpi,jpj,jpl) |
---|
| 336 | DO jl = 1, jpl |
---|
| 337 | zti_3d(:,:,jl) = rt0 * tmask(:,:,1) |
---|
| 338 | zts_3d(:,:,jl) = rt0 * tmask(:,:,1) |
---|
| 339 | END DO |
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| 340 | CALL tab_2d_3d( npti, nptidx(1:npti), zhi_2d , h_i ) |
---|
| 341 | CALL tab_2d_3d( npti, nptidx(1:npti), zhs_2d , h_s ) |
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| 342 | CALL tab_2d_3d( npti, nptidx(1:npti), zai_2d , a_i ) |
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| 343 | CALL tab_2d_3d( npti, nptidx(1:npti), zti_2d , zti_3d ) |
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| 344 | CALL tab_2d_3d( npti, nptidx(1:npti), zts_2d , zts_3d ) |
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| 345 | CALL tab_2d_3d( npti, nptidx(1:npti), ztsu_2d , t_su ) |
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| 346 | CALL tab_2d_3d( npti, nptidx(1:npti), zsi_2d , s_i ) |
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| 347 | CALL tab_2d_3d( npti, nptidx(1:npti), zaip_2d , a_ip ) |
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| 348 | CALL tab_2d_3d( npti, nptidx(1:npti), zhip_2d , h_ip ) |
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[13798] | 349 | CALL tab_2d_3d( npti, nptidx(1:npti), zhil_2d , h_il ) |
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[13216] | 350 | |
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| 351 | ! deallocate temporary arrays |
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| 352 | DEALLOCATE( zhi_2d, zhs_2d, zai_2d , & |
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[13798] | 353 | & zti_2d, zts_2d, ztsu_2d, zsi_2d, zaip_2d, zhip_2d, zhil_2d ) |
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[13216] | 354 | |
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| 355 | ! calculate extensive and intensive variables |
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| 356 | CALL ice_var_salprof ! for sz_i |
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| 357 | DO jl = 1, jpl |
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[13295] | 358 | DO_2D( 1, 1, 1, 1 ) |
---|
[13216] | 359 | v_i (ji,jj,jl) = h_i(ji,jj,jl) * a_i(ji,jj,jl) |
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| 360 | v_s (ji,jj,jl) = h_s(ji,jj,jl) * a_i(ji,jj,jl) |
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| 361 | sv_i(ji,jj,jl) = MIN( MAX( rn_simin , s_i(ji,jj,jl) ) , rn_simax ) * v_i(ji,jj,jl) |
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| 362 | END_2D |
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| 363 | END DO |
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[11536] | 364 | ! |
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[13216] | 365 | DO jl = 1, jpl |
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[13295] | 366 | DO_3D( 1, 1, 1, 1, 1, nlay_s ) |
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[13216] | 367 | t_s(ji,jj,jk,jl) = zts_3d(ji,jj,jl) |
---|
| 368 | e_s(ji,jj,jk,jl) = zswitch(ji,jj) * v_s(ji,jj,jl) * r1_nlay_s * & |
---|
| 369 | & rhos * ( rcpi * ( rt0 - t_s(ji,jj,jk,jl) ) + rLfus ) |
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| 370 | END_3D |
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| 371 | END DO |
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[11536] | 372 | ! |
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[13216] | 373 | DO jl = 1, jpl |
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[13295] | 374 | DO_3D( 1, 1, 1, 1, 1, nlay_i ) |
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[13216] | 375 | t_i (ji,jj,jk,jl) = zti_3d(ji,jj,jl) |
---|
| 376 | ztmelts = - rTmlt * sz_i(ji,jj,jk,jl) + rt0 ! melting temperature in K |
---|
| 377 | e_i(ji,jj,jk,jl) = zswitch(ji,jj) * v_i(ji,jj,jl) * r1_nlay_i * & |
---|
| 378 | & rhoi * ( rcpi * ( ztmelts - t_i(ji,jj,jk,jl) ) + & |
---|
| 379 | & rLfus * ( 1._wp - (ztmelts-rt0) / MIN( (t_i(ji,jj,jk,jl)-rt0), -epsi20 ) ) & |
---|
| 380 | & - rcp * ( ztmelts - rt0 ) ) |
---|
| 381 | END_3D |
---|
| 382 | END DO |
---|
[13798] | 383 | |
---|
[13216] | 384 | #if defined key_agrif |
---|
| 385 | ELSE |
---|
| 386 | |
---|
| 387 | Agrif_SpecialValue = -9999. |
---|
| 388 | Agrif_UseSpecialValue = .TRUE. |
---|
| 389 | CALL Agrif_init_variable(tra_iceini_id,procname=interp_tra_ice) |
---|
| 390 | use_sign_north = .TRUE. |
---|
| 391 | sign_north = -1. |
---|
| 392 | CALL Agrif_init_variable(u_iceini_id ,procname=interp_u_ice) |
---|
| 393 | CALL Agrif_init_variable(v_iceini_id ,procname=interp_v_ice) |
---|
| 394 | Agrif_SpecialValue = 0._wp |
---|
| 395 | use_sign_north = .FALSE. |
---|
| 396 | Agrif_UseSpecialValue = .FALSE. |
---|
| 397 | ! lbc ???? |
---|
[13798] | 398 | ! Here we know : a_i, v_i, v_s, sv_i, oa_i, a_ip, v_ip, v_il, t_su, e_s, e_i |
---|
[13216] | 399 | CALL ice_var_glo2eqv |
---|
| 400 | CALL ice_var_zapsmall |
---|
| 401 | CALL ice_var_agg(2) |
---|
| 402 | #endif |
---|
[13798] | 403 | ENDIF ! Agrif_Root |
---|
| 404 | ! |
---|
| 405 | ! Melt ponds |
---|
| 406 | WHERE( a_i > epsi10 ) ; a_ip_eff(:,:,:) = a_ip(:,:,:) / a_i(:,:,:) |
---|
| 407 | ELSEWHERE ; a_ip_eff(:,:,:) = 0._wp |
---|
| 408 | END WHERE |
---|
| 409 | v_ip(:,:,:) = h_ip(:,:,:) * a_ip(:,:,:) |
---|
| 410 | v_il(:,:,:) = h_il(:,:,:) * a_ip(:,:,:) |
---|
| 411 | |
---|
| 412 | ! specific temperatures for coupled runs |
---|
| 413 | tn_ice(:,:,:) = t_su(:,:,:) |
---|
| 414 | t1_ice(:,:,:) = t_i (:,:,1,:) |
---|
| 415 | ! |
---|
| 416 | ! ice concentration should not exceed amax |
---|
| 417 | at_i(:,:) = SUM( a_i, dim=3 ) |
---|
| 418 | DO jl = 1, jpl |
---|
| 419 | WHERE( at_i(:,:) > rn_amax_2d(:,:) ) a_i(:,:,jl) = a_i(:,:,jl) * rn_amax_2d(:,:) / at_i(:,:) |
---|
| 420 | END DO |
---|
| 421 | at_i(:,:) = SUM( a_i, dim=3 ) |
---|
| 422 | ! |
---|
[8586] | 423 | ENDIF ! ln_iceini |
---|
[8813] | 424 | ! |
---|
[8586] | 425 | !---------------------------------------------- |
---|
[13798] | 426 | ! 4) Snow-ice mass (case ice is fully embedded) |
---|
[8586] | 427 | !---------------------------------------------- |
---|
[9935] | 428 | snwice_mass (:,:) = tmask(:,:,1) * SUM( rhos * v_s(:,:,:) + rhoi * v_i(:,:,:), dim=3 ) ! snow+ice mass |
---|
[8586] | 429 | snwice_mass_b(:,:) = snwice_mass(:,:) |
---|
| 430 | ! |
---|
| 431 | IF( ln_ice_embd ) THEN ! embedded sea-ice: deplete the initial ssh below sea-ice area |
---|
[8813] | 432 | ! |
---|
[12489] | 433 | ssh(:,:,Kmm) = ssh(:,:,Kmm) - snwice_mass(:,:) * r1_rho0 |
---|
| 434 | ssh(:,:,Kbb) = ssh(:,:,Kbb) - snwice_mass(:,:) * r1_rho0 |
---|
[8813] | 435 | ! |
---|
[13237] | 436 | IF( .NOT.ln_linssh ) CALL dom_vvl_zgr( Kbb, Kmm, Kaa ) ! interpolation scale factor, depth and water column |
---|
| 437 | ! !!st |
---|
| 438 | ! IF( .NOT.ln_linssh ) THEN |
---|
| 439 | ! ! |
---|
| 440 | ! WHERE( ht_0(:,:) > 0 ) ; z2d(:,:) = 1._wp + ssh(:,:,Kmm)*tmask(:,:,1) / ht_0(:,:) |
---|
| 441 | ! ELSEWHERE ; z2d(:,:) = 1._wp ; END WHERE |
---|
| 442 | ! ! |
---|
| 443 | ! DO jk = 1,jpkm1 ! adjust initial vertical scale factors |
---|
| 444 | ! e3t(:,:,jk,Kmm) = e3t_0(:,:,jk) * z2d(:,:) |
---|
| 445 | ! e3t(:,:,jk,Kbb) = e3t(:,:,jk,Kmm) |
---|
| 446 | ! e3t(:,:,jk,Kaa) = e3t(:,:,jk,Kmm) |
---|
| 447 | ! END DO |
---|
| 448 | ! ! |
---|
| 449 | ! ! Reconstruction of all vertical scale factors at now and before time-steps |
---|
| 450 | ! ! ========================================================================= |
---|
| 451 | ! ! Horizontal scale factor interpolations |
---|
| 452 | ! ! -------------------------------------- |
---|
| 453 | ! CALL dom_vvl_interpol( e3t(:,:,:,Kbb), e3u(:,:,:,Kbb), 'U' ) |
---|
| 454 | ! CALL dom_vvl_interpol( e3t(:,:,:,Kbb), e3v(:,:,:,Kbb), 'V' ) |
---|
| 455 | ! CALL dom_vvl_interpol( e3t(:,:,:,Kmm), e3u(:,:,:,Kmm), 'U' ) |
---|
| 456 | ! CALL dom_vvl_interpol( e3t(:,:,:,Kmm), e3v(:,:,:,Kmm), 'V' ) |
---|
| 457 | ! CALL dom_vvl_interpol( e3u(:,:,:,Kmm), e3f(:,:,:), 'F' ) |
---|
| 458 | ! ! Vertical scale factor interpolations |
---|
| 459 | ! ! ------------------------------------ |
---|
| 460 | ! CALL dom_vvl_interpol( e3t(:,:,:,Kmm), e3w (:,:,:,Kmm), 'W' ) |
---|
| 461 | ! CALL dom_vvl_interpol( e3u(:,:,:,Kmm), e3uw(:,:,:,Kmm), 'UW' ) |
---|
| 462 | ! CALL dom_vvl_interpol( e3v(:,:,:,Kmm), e3vw(:,:,:,Kmm), 'VW' ) |
---|
| 463 | ! CALL dom_vvl_interpol( e3u(:,:,:,Kbb), e3uw(:,:,:,Kbb), 'UW' ) |
---|
| 464 | ! CALL dom_vvl_interpol( e3v(:,:,:,Kbb), e3vw(:,:,:,Kbb), 'VW' ) |
---|
| 465 | ! ! t- and w- points depth |
---|
| 466 | ! ! ---------------------- |
---|
| 467 | ! !!gm not sure of that.... |
---|
| 468 | ! gdept(:,:,1,Kmm) = 0.5_wp * e3w(:,:,1,Kmm) |
---|
| 469 | ! gdepw(:,:,1,Kmm) = 0.0_wp |
---|
| 470 | ! gde3w(:,:,1) = gdept(:,:,1,Kmm) - ssh(:,:,Kmm) |
---|
| 471 | ! DO jk = 2, jpk |
---|
| 472 | ! gdept(:,:,jk,Kmm) = gdept(:,:,jk-1,Kmm) + e3w(:,:,jk ,Kmm) |
---|
| 473 | ! gdepw(:,:,jk,Kmm) = gdepw(:,:,jk-1,Kmm) + e3t(:,:,jk-1,Kmm) |
---|
| 474 | ! gde3w(:,:,jk) = gdept(:,:,jk ,Kmm) - ssh (:,:,Kmm) |
---|
| 475 | ! END DO |
---|
| 476 | ! ENDIF |
---|
[8586] | 477 | ENDIF |
---|
| 478 | |
---|
[13798] | 479 | !!clem: output of initial state should be written here but it is impossible because |
---|
| 480 | !! the ocean and ice are in the same file |
---|
| 481 | !! CALL dia_wri_state( 'output.init' ) |
---|
[8813] | 482 | ! |
---|
[8586] | 483 | END SUBROUTINE ice_istate |
---|
| 484 | |
---|
[8813] | 485 | |
---|
[8586] | 486 | SUBROUTINE ice_istate_init |
---|
| 487 | !!------------------------------------------------------------------- |
---|
| 488 | !! *** ROUTINE ice_istate_init *** |
---|
| 489 | !! |
---|
[8813] | 490 | !! ** Purpose : Definition of initial state of the ice |
---|
[8586] | 491 | !! |
---|
[8813] | 492 | !! ** Method : Read the namini namelist and check the parameter |
---|
| 493 | !! values called at the first timestep (nit000) |
---|
[8586] | 494 | !! |
---|
[8813] | 495 | !! ** input : Namelist namini |
---|
[8586] | 496 | !! |
---|
| 497 | !!----------------------------------------------------------------------------- |
---|
[13798] | 498 | INTEGER :: ios ! Local integer output status for namelist read |
---|
| 499 | INTEGER :: ifpr, ierror |
---|
[8586] | 500 | ! |
---|
| 501 | CHARACTER(len=256) :: cn_dir ! Root directory for location of ice files |
---|
[13798] | 502 | TYPE(FLD_N) :: sn_hti, sn_hts, sn_ati, sn_smi, sn_tmi, sn_tsu, sn_tms, sn_apd, sn_hpd, sn_hld |
---|
[8586] | 503 | TYPE(FLD_N), DIMENSION(jpfldi) :: slf_i ! array of namelist informations on the fields to read |
---|
| 504 | ! |
---|
[13798] | 505 | NAMELIST/namini/ ln_iceini, nn_iceini_file, rn_thres_sst, & |
---|
[11536] | 506 | & rn_hti_ini_n, rn_hti_ini_s, rn_hts_ini_n, rn_hts_ini_s, & |
---|
| 507 | & rn_ati_ini_n, rn_ati_ini_s, rn_smi_ini_n, rn_smi_ini_s, & |
---|
| 508 | & rn_tmi_ini_n, rn_tmi_ini_s, rn_tsu_ini_n, rn_tsu_ini_s, rn_tms_ini_n, rn_tms_ini_s, & |
---|
[13798] | 509 | & rn_apd_ini_n, rn_apd_ini_s, rn_hpd_ini_n, rn_hpd_ini_s, rn_hld_ini_n, rn_hld_ini_s, & |
---|
| 510 | & sn_hti, sn_hts, sn_ati, sn_tsu, sn_tmi, sn_smi, sn_tms, sn_apd, sn_hpd, sn_hld, cn_dir |
---|
[8586] | 511 | !!----------------------------------------------------------------------------- |
---|
| 512 | ! |
---|
| 513 | READ ( numnam_ice_ref, namini, IOSTAT = ios, ERR = 901) |
---|
[11536] | 514 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namini in reference namelist' ) |
---|
[8586] | 515 | READ ( numnam_ice_cfg, namini, IOSTAT = ios, ERR = 902 ) |
---|
[11536] | 516 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namini in configuration namelist' ) |
---|
[8586] | 517 | IF(lwm) WRITE ( numoni, namini ) |
---|
[8813] | 518 | ! |
---|
[8586] | 519 | slf_i(jp_hti) = sn_hti ; slf_i(jp_hts) = sn_hts |
---|
[11536] | 520 | slf_i(jp_ati) = sn_ati ; slf_i(jp_smi) = sn_smi |
---|
| 521 | slf_i(jp_tmi) = sn_tmi ; slf_i(jp_tsu) = sn_tsu ; slf_i(jp_tms) = sn_tms |
---|
[13798] | 522 | slf_i(jp_apd) = sn_apd ; slf_i(jp_hpd) = sn_hpd ; slf_i(jp_hld) = sn_hld |
---|
[8586] | 523 | ! |
---|
| 524 | IF(lwp) THEN ! control print |
---|
| 525 | WRITE(numout,*) |
---|
| 526 | WRITE(numout,*) 'ice_istate_init: ice parameters inititialisation ' |
---|
| 527 | WRITE(numout,*) '~~~~~~~~~~~~~~~' |
---|
| 528 | WRITE(numout,*) ' Namelist namini:' |
---|
[11536] | 529 | WRITE(numout,*) ' ice initialization (T) or not (F) ln_iceini = ', ln_iceini |
---|
[13798] | 530 | WRITE(numout,*) ' ice initialization from a netcdf file nn_iceini_file = ', nn_iceini_file |
---|
[11536] | 531 | WRITE(numout,*) ' max ocean temp. above Tfreeze with initial ice rn_thres_sst = ', rn_thres_sst |
---|
[13798] | 532 | IF( ln_iceini .AND. nn_iceini_file == 0 ) THEN |
---|
[11536] | 533 | WRITE(numout,*) ' initial snw thickness in the north-south rn_hts_ini = ', rn_hts_ini_n,rn_hts_ini_s |
---|
| 534 | WRITE(numout,*) ' initial ice thickness in the north-south rn_hti_ini = ', rn_hti_ini_n,rn_hti_ini_s |
---|
| 535 | WRITE(numout,*) ' initial ice concentr in the north-south rn_ati_ini = ', rn_ati_ini_n,rn_ati_ini_s |
---|
| 536 | WRITE(numout,*) ' initial ice salinity in the north-south rn_smi_ini = ', rn_smi_ini_n,rn_smi_ini_s |
---|
| 537 | WRITE(numout,*) ' initial surf temperat in the north-south rn_tsu_ini = ', rn_tsu_ini_n,rn_tsu_ini_s |
---|
| 538 | WRITE(numout,*) ' initial ice temperat in the north-south rn_tmi_ini = ', rn_tmi_ini_n,rn_tmi_ini_s |
---|
| 539 | WRITE(numout,*) ' initial snw temperat in the north-south rn_tms_ini = ', rn_tms_ini_n,rn_tms_ini_s |
---|
| 540 | WRITE(numout,*) ' initial pnd fraction in the north-south rn_apd_ini = ', rn_apd_ini_n,rn_apd_ini_s |
---|
| 541 | WRITE(numout,*) ' initial pnd depth in the north-south rn_hpd_ini = ', rn_hpd_ini_n,rn_hpd_ini_s |
---|
[13798] | 542 | WRITE(numout,*) ' initial pnd lid depth in the north-south rn_hld_ini = ', rn_hld_ini_n,rn_hld_ini_s |
---|
[11536] | 543 | ENDIF |
---|
[8586] | 544 | ENDIF |
---|
[8813] | 545 | ! |
---|
[13798] | 546 | IF( nn_iceini_file == 1 ) THEN ! Ice initialization using input file |
---|
[8586] | 547 | ! |
---|
| 548 | ! set si structure |
---|
| 549 | ALLOCATE( si(jpfldi), STAT=ierror ) |
---|
| 550 | IF( ierror > 0 ) THEN |
---|
[11536] | 551 | CALL ctl_stop( 'ice_istate_ini in iceistate: unable to allocate si structure' ) ; RETURN |
---|
[8586] | 552 | ENDIF |
---|
[8813] | 553 | ! |
---|
[8586] | 554 | DO ifpr = 1, jpfldi |
---|
| 555 | ALLOCATE( si(ifpr)%fnow(jpi,jpj,1) ) |
---|
[11536] | 556 | IF( slf_i(ifpr)%ln_tint ) ALLOCATE( si(ifpr)%fdta(jpi,jpj,1,2) ) |
---|
[8586] | 557 | END DO |
---|
[8813] | 558 | ! |
---|
[8586] | 559 | ! fill si with slf_i and control print |
---|
[11536] | 560 | CALL fld_fill( si, slf_i, cn_dir, 'ice_istate_ini', 'initialization of sea ice fields', 'numnam_ice' ) |
---|
[8813] | 561 | ! |
---|
[8586] | 562 | ENDIF |
---|
[8813] | 563 | ! |
---|
[11536] | 564 | IF( .NOT.ln_pnd ) THEN |
---|
| 565 | rn_apd_ini_n = 0. ; rn_apd_ini_s = 0. |
---|
| 566 | rn_hpd_ini_n = 0. ; rn_hpd_ini_s = 0. |
---|
[13798] | 567 | rn_hld_ini_n = 0. ; rn_hld_ini_s = 0. |
---|
| 568 | CALL ctl_warn( 'rn_apd_ini & rn_hpd_ini = 0 & rn_hld_ini = 0 when no ponds' ) |
---|
[11536] | 569 | ENDIF |
---|
| 570 | ! |
---|
[13798] | 571 | IF( .NOT.ln_pnd_lids ) THEN |
---|
| 572 | rn_hld_ini_n = 0. ; rn_hld_ini_s = 0. |
---|
| 573 | ENDIF |
---|
| 574 | ! |
---|
[8586] | 575 | END SUBROUTINE ice_istate_init |
---|
| 576 | |
---|
| 577 | #else |
---|
| 578 | !!---------------------------------------------------------------------- |
---|
[9570] | 579 | !! Default option : Empty module NO SI3 sea-ice model |
---|
[8586] | 580 | !!---------------------------------------------------------------------- |
---|
| 581 | #endif |
---|
| 582 | |
---|
| 583 | !!====================================================================== |
---|
| 584 | END MODULE iceistate |
---|