1 | MODULE limistate |
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2 | !!====================================================================== |
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3 | !! *** MODULE limistate *** |
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4 | !! Initialisation of diagnostics ice variables |
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5 | !!====================================================================== |
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6 | !! History : 2.0 ! 2004-01 (C. Ethe, G. Madec) Original code |
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7 | !! 4.0 ! 2011-02 (G. Madec) dynamical allocation |
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8 | !! - ! 2014 (C. Rousset) add N/S initializations |
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9 | !!---------------------------------------------------------------------- |
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10 | #if defined key_lim3 |
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11 | !!---------------------------------------------------------------------- |
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12 | !! 'key_lim3' : LIM3 sea-ice model |
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13 | !!---------------------------------------------------------------------- |
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14 | !! lim_istate : Initialisation of diagnostics ice variables |
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15 | !! lim_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 ! Surface boundary condition: ocean fields |
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21 | USE sbc_ice ! Surface boundary condition: ice fields |
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22 | USE eosbn2 ! equation of state |
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23 | USE ice ! sea-ice variables |
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24 | USE par_oce ! ocean parameters |
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25 | USE dom_ice ! sea-ice domain |
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26 | USE in_out_manager ! I/O manager |
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27 | USE lib_mpp ! MPP library |
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28 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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29 | USE wrk_nemo ! work arrays |
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30 | USE fldread ! read input fields |
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31 | USE iom |
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32 | |
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33 | IMPLICIT NONE |
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34 | PRIVATE |
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35 | |
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36 | PUBLIC lim_istate ! routine called by lim_init.F90 |
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37 | |
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38 | ! !!** init namelist (namiceini) ** |
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39 | REAL(wp) :: rn_thres_sst ! threshold water temperature for initial sea ice |
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40 | REAL(wp) :: rn_hts_ini_n ! initial snow thickness in the north |
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41 | REAL(wp) :: rn_hts_ini_s ! initial snow thickness in the south |
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42 | REAL(wp) :: rn_hti_ini_n ! initial ice thickness in the north |
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43 | REAL(wp) :: rn_hti_ini_s ! initial ice thickness in the south |
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44 | REAL(wp) :: rn_ati_ini_n ! initial leads area in the north |
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45 | REAL(wp) :: rn_ati_ini_s ! initial leads area in the south |
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46 | REAL(wp) :: rn_smi_ini_n ! initial salinity |
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47 | REAL(wp) :: rn_smi_ini_s ! initial salinity |
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48 | REAL(wp) :: rn_tmi_ini_n ! initial temperature |
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49 | REAL(wp) :: rn_tmi_ini_s ! initial temperature |
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50 | |
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51 | INTEGER , PARAMETER :: jpfldi = 7 ! maximum number of files to read |
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52 | INTEGER , PARAMETER :: jp_hicif = 1 ! index of thick (m) at T-point |
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53 | INTEGER , PARAMETER :: jp_hsnif = 2 ! index of thick (m) at T-point |
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54 | INTEGER , PARAMETER :: jp_frld = 3 ! index of ice fraction (%) at T-point |
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55 | INTEGER , PARAMETER :: jp_sist = 4 ! index of ice surface temp (K) at T-point |
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56 | INTEGER , PARAMETER :: jp_tbif1 = 5 ! index of ice temp lev1 (K) at T-point |
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57 | INTEGER , PARAMETER :: jp_tbif2 = 6 ! index of ice temp lev2 (K) at T-point |
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58 | INTEGER , PARAMETER :: jp_tbif3 = 7 ! index of ice temp lev3 (K) at T-point |
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59 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: si ! structure of input fields (file informations, fields read) |
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60 | |
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61 | REAL(wp),DIMENSION(:,:) ,ALLOCATABLE :: hicif_ini,hsnif_ini,frld_ini,sist_ini, zswitch |
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62 | REAL(wp),DIMENSION(:,:,:),ALLOCATABLE :: tbif_ini |
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63 | |
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64 | LOGICAL :: ln_iceini ! initialization or not |
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65 | LOGICAL :: ln_limini_file ! Ice initialization state from 2D netcdf file |
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66 | !!---------------------------------------------------------------------- |
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67 | !! LIM 3.0, UCL-LOCEAN-IPSL (2008) |
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68 | !! $Id$ |
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69 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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70 | !!---------------------------------------------------------------------- |
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71 | CONTAINS |
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72 | |
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73 | SUBROUTINE lim_istate |
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74 | !!------------------------------------------------------------------- |
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75 | !! *** ROUTINE lim_istate *** |
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76 | !! |
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77 | !! ** Purpose : defined the sea-ice initial state |
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78 | !! |
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79 | !! ** Method : |
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80 | !! This routine will put some ice where ocean |
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81 | !! is at the freezing point, then fill in ice |
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82 | !! state variables using prescribed initial |
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83 | !! values in the namelist |
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84 | !! |
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85 | !! ** Steps : |
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86 | !! 1) Read namelist |
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87 | !! 2) Basal temperature; ice and hemisphere masks |
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88 | !! 3) Fill in the ice thickness distribution using gaussian |
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89 | !! 4) Fill in space-dependent arrays for state variables |
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90 | !! 5) Diagnostic arrays |
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91 | !! 6) Lateral boundary conditions |
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92 | !! |
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93 | !! ** Notes : o_i, t_su, t_s, t_i, s_i must be filled everywhere, even |
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94 | !! where there is no ice (clem: I do not know why, is it mandatory?) |
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95 | !! |
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96 | !! History : |
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97 | !! 2.0 ! 01-04 (C. Ethe, G. Madec) Original code |
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98 | !! 3.0 ! 2007 (M. Vancoppenolle) Rewrite for ice cats |
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99 | !! 4.0 ! 09-11 (M. Vancoppenolle) Enhanced version for ice cats |
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100 | !!-------------------------------------------------------------------- |
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101 | |
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102 | !! * Local variables |
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103 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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104 | REAL(wp) :: ztmelts, zdh |
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105 | INTEGER :: i_hemis, i_fill, jl0 |
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106 | REAL(wp) :: ztest_1, ztest_2, ztest_3, ztest_4, ztests, zsigma, zarg, zA, zV, zA_cons, zV_cons, zconv |
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107 | REAL(wp), POINTER, DIMENSION(:) :: zht_i_ini, zat_i_ini, zvt_i_ini, zht_s_ini, zsm_i_ini, ztm_i_ini |
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108 | REAL(wp), POINTER, DIMENSION(:,:) :: zh_i_ini, za_i_ini, zv_i_ini |
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109 | INTEGER, POINTER, DIMENSION(:,:) :: zhemis ! hemispheric index |
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110 | !-------------------------------------------------------------------- |
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111 | |
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112 | CALL wrk_alloc( jpi, jpj, zhemis ) |
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113 | CALL wrk_alloc( jpl, 2, zh_i_ini, za_i_ini, zv_i_ini ) |
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114 | CALL wrk_alloc( 2, zht_i_ini, zat_i_ini, zvt_i_ini, zht_s_ini, zsm_i_ini, ztm_i_ini ) |
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115 | |
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116 | IF(lwp) WRITE(numout,*) |
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117 | IF(lwp) WRITE(numout,*) 'lim_istate : Ice initialization ' |
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118 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ' |
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119 | |
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120 | !-------------------------------------------------------------------- |
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121 | ! 1) Read namelist |
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122 | !-------------------------------------------------------------------- |
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123 | |
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124 | CALL lim_istate_init ! reading the initials parameters of the ice |
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125 | |
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126 | ! surface temperature |
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127 | DO jl = 1, jpl ! loop over categories |
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128 | t_su (:,:,jl) = rt0 * tmask(:,:,1) |
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129 | tn_ice(:,:,jl) = rt0 * tmask(:,:,1) |
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130 | END DO |
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131 | |
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132 | ! basal temperature (considered at freezing point) |
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133 | t_bo(:,:) = ( eos_fzp( sss_m(:,:) ) + rt0 ) * tmask(:,:,1) |
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134 | |
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135 | IF( ln_iceini ) THEN |
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136 | |
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137 | !-------------------------------------------------------------------- |
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138 | ! 2) Basal temperature, ice mask and hemispheric index |
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139 | !-------------------------------------------------------------------- |
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140 | |
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141 | DO jj = 1, jpj ! ice if sst <= t-freez + ttest |
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142 | DO ji = 1, jpi |
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143 | IF( ( sst_m(ji,jj) - ( t_bo(ji,jj) - rt0 ) ) * tmask(ji,jj,1) >= rn_thres_sst ) THEN |
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144 | zswitch(ji,jj) = 0._wp * tmask(ji,jj,1) ! no ice |
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145 | ELSE |
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146 | zswitch(ji,jj) = 1._wp * tmask(ji,jj,1) ! ice |
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147 | ENDIF |
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148 | END DO |
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149 | END DO |
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150 | |
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151 | |
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152 | ! Hemispheric index |
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153 | DO jj = 1, jpj |
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154 | DO ji = 1, jpi |
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155 | IF( fcor(ji,jj) >= 0._wp ) THEN |
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156 | zhemis(ji,jj) = 1 ! Northern hemisphere |
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157 | ELSE |
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158 | zhemis(ji,jj) = 2 ! Southern hemisphere |
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159 | ENDIF |
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160 | END DO |
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161 | END DO |
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162 | |
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163 | !-------------------------------------------------------------------- |
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164 | ! 3) Initialization of sea ice state variables |
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165 | !-------------------------------------------------------------------- |
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166 | IF( ln_limini_file )THEN |
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167 | |
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168 | CALL limini_file |
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169 | |
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170 | ELSE |
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171 | |
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172 | !----------------------------- |
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173 | ! 3.1) Hemisphere-dependent arrays |
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174 | !----------------------------- |
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175 | ! assign initial thickness, concentration, snow depth and salinity to an hemisphere-dependent array |
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176 | zht_i_ini(1) = rn_hti_ini_n ; zht_i_ini(2) = rn_hti_ini_s ! ice thickness |
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177 | zht_s_ini(1) = rn_hts_ini_n ; zht_s_ini(2) = rn_hts_ini_s ! snow depth |
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178 | zat_i_ini(1) = rn_ati_ini_n ; zat_i_ini(2) = rn_ati_ini_s ! ice concentration |
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179 | zsm_i_ini(1) = rn_smi_ini_n ; zsm_i_ini(2) = rn_smi_ini_s ! bulk ice salinity |
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180 | ztm_i_ini(1) = rn_tmi_ini_n ; ztm_i_ini(2) = rn_tmi_ini_s ! temperature (ice and snow) |
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181 | |
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182 | zvt_i_ini(:) = zht_i_ini(:) * zat_i_ini(:) ! ice volume |
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183 | |
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184 | !--------------------------------------------------------------------- |
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185 | ! 3.2) Distribute ice concentration and thickness into the categories |
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186 | !--------------------------------------------------------------------- |
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187 | ! a gaussian distribution for ice concentration is used |
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188 | ! then we check whether the distribution fullfills |
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189 | ! volume and area conservation, positivity and ice categories bounds |
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190 | DO i_hemis = 1, 2 |
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191 | |
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192 | ztest_1 = 0 ; ztest_2 = 0 ; ztest_3 = 0 ; ztest_4 = 0 |
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193 | |
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194 | ! note for the great nemo engineers: |
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195 | ! only very few of the WRITE statements are necessary for the reference version |
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196 | ! they were one day useful, but now i personally doubt of their |
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197 | ! potential for bringing anything useful |
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198 | |
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199 | DO i_fill = jpl, 1, -1 |
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200 | IF ( ( ztest_1 + ztest_2 + ztest_3 + ztest_4 ) .NE. 4 ) THEN |
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201 | !---------------------------- |
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202 | ! fill the i_fill categories |
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203 | !---------------------------- |
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204 | ! *** 1 category to fill |
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205 | IF ( i_fill .EQ. 1 ) THEN |
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206 | zh_i_ini(1,i_hemis) = zht_i_ini(i_hemis) |
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207 | za_i_ini(1,i_hemis) = zat_i_ini(i_hemis) |
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208 | zh_i_ini(2:jpl,i_hemis) = 0._wp |
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209 | za_i_ini(2:jpl,i_hemis) = 0._wp |
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210 | ELSE |
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211 | |
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212 | ! *** >1 categores to fill |
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213 | !--- Ice thicknesses in the i_fill - 1 first categories |
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214 | DO jl = 1, i_fill - 1 |
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215 | zh_i_ini(jl,i_hemis) = hi_mean(jl) |
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216 | END DO |
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217 | |
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218 | !--- jl0: most likely index where cc will be maximum |
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219 | DO jl = 1, jpl |
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220 | IF ( ( zht_i_ini(i_hemis) > hi_max(jl-1) ) .AND. & |
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221 | & ( zht_i_ini(i_hemis) <= hi_max(jl) ) ) THEN |
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222 | jl0 = jl |
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223 | ENDIF |
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224 | END DO |
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225 | jl0 = MIN(jl0, i_fill) |
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226 | |
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227 | !--- Concentrations |
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228 | za_i_ini(jl0,i_hemis) = zat_i_ini(i_hemis) / SQRT(REAL(jpl)) |
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229 | DO jl = 1, i_fill - 1 |
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230 | IF ( jl .NE. jl0 ) THEN |
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231 | zsigma = 0.5 * zht_i_ini(i_hemis) |
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232 | zarg = ( zh_i_ini(jl,i_hemis) - zht_i_ini(i_hemis) ) / zsigma |
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233 | za_i_ini(jl,i_hemis) = za_i_ini(jl0,i_hemis) * EXP(-zarg**2) |
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234 | ENDIF |
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235 | END DO |
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236 | |
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237 | zA = 0. ! sum of the areas in the jpl categories |
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238 | DO jl = 1, i_fill - 1 |
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239 | zA = zA + za_i_ini(jl,i_hemis) |
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240 | END DO |
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241 | za_i_ini(i_fill,i_hemis) = zat_i_ini(i_hemis) - zA ! ice conc in the last category |
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242 | IF ( i_fill .LT. jpl ) za_i_ini(i_fill+1:jpl, i_hemis) = 0._wp |
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243 | |
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244 | !--- Ice thickness in the last category |
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245 | zV = 0. ! sum of the volumes of the N-1 categories |
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246 | DO jl = 1, i_fill - 1 |
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247 | zV = zV + za_i_ini(jl,i_hemis)*zh_i_ini(jl,i_hemis) |
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248 | END DO |
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249 | zh_i_ini(i_fill,i_hemis) = ( zvt_i_ini(i_hemis) - zV ) / za_i_ini(i_fill,i_hemis) |
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250 | IF ( i_fill .LT. jpl ) zh_i_ini(i_fill+1:jpl, i_hemis) = 0._wp |
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251 | |
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252 | !--- volumes |
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253 | zv_i_ini(:,i_hemis) = za_i_ini(:,i_hemis) * zh_i_ini(:,i_hemis) |
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254 | IF ( i_fill .LT. jpl ) zv_i_ini(i_fill+1:jpl, i_hemis) = 0._wp |
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255 | |
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256 | ENDIF ! i_fill |
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257 | |
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258 | !--------------------- |
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259 | ! Compatibility tests |
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260 | !--------------------- |
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261 | ! Test 1: area conservation |
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262 | zA_cons = SUM(za_i_ini(:,i_hemis)) ; zconv = ABS(zat_i_ini(i_hemis) - zA_cons ) |
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263 | IF ( zconv .LT. 1.0e-6 ) THEN |
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264 | ztest_1 = 1 |
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265 | ELSE |
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266 | ! this write is useful |
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267 | IF(lwp) WRITE(numout,*) ' * TEST1 AREA NOT CONSERVED *** zA_cons = ', zA_cons,' zat_i_ini = ',zat_i_ini(i_hemis) |
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268 | ztest_1 = 0 |
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269 | ENDIF |
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270 | |
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271 | ! Test 2: volume conservation |
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272 | zV_cons = SUM(zv_i_ini(:,i_hemis)) |
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273 | zconv = ABS(zvt_i_ini(i_hemis) - zV_cons) |
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274 | |
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275 | IF ( zconv .LT. 1.0e-6 ) THEN |
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276 | ztest_2 = 1 |
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277 | ELSE |
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278 | ! this write is useful |
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279 | IF(lwp) WRITE(numout,*) ' * TEST2 VOLUME NOT CONSERVED *** zV_cons = ', zV_cons, & |
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280 | ' zvt_i_ini = ', zvt_i_ini(i_hemis) |
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281 | ztest_2 = 0 |
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282 | ENDIF |
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283 | |
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284 | ! Test 3: thickness of the last category is in-bounds ? |
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285 | IF ( zh_i_ini(i_fill, i_hemis) > hi_max(i_fill-1) ) THEN |
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286 | ztest_3 = 1 |
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287 | ELSE |
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288 | ! this write is useful |
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289 | IF(lwp) WRITE(numout,*) ' * TEST 3 THICKNESS OF THE LAST CATEGORY OUT OF BOUNDS *** zh_i_ini(i_fill,i_hemis) = ', & |
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290 | zh_i_ini(i_fill,i_hemis), ' hi_max(jpl-1) = ', hi_max(i_fill-1) |
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291 | ztest_3 = 0 |
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292 | ENDIF |
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293 | |
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294 | ! Test 4: positivity of ice concentrations |
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295 | ztest_4 = 1 |
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296 | DO jl = 1, jpl |
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297 | IF ( za_i_ini(jl,i_hemis) .LT. 0._wp ) THEN |
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298 | ! this write is useful |
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299 | IF(lwp) WRITE(numout,*) ' * TEST 4 POSITIVITY NOT OK FOR CAT ', jl, ' WITH A = ', za_i_ini(jl,i_hemis) |
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300 | ztest_4 = 0 |
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301 | ENDIF |
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302 | END DO |
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303 | |
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304 | ENDIF ! ztest_1 + ztest_2 + ztest_3 + ztest_4 |
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305 | |
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306 | ztests = ztest_1 + ztest_2 + ztest_3 + ztest_4 |
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307 | |
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308 | END DO ! i_fill |
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309 | |
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310 | IF(lwp) THEN |
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311 | WRITE(numout,*) ' ztests : ', ztests |
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312 | IF ( ztests .NE. 4 ) THEN |
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313 | WRITE(numout,*) |
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314 | WRITE(numout,*) ' !!!! ALERT !!! ' |
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315 | WRITE(numout,*) ' !!!! Something is wrong in the LIM3 initialization procedure ' |
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316 | WRITE(numout,*) |
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317 | WRITE(numout,*) ' *** ztests is not equal to 4 ' |
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318 | WRITE(numout,*) ' *** ztest_i (i=1,4) = ', ztest_1, ztest_2, ztest_3, ztest_4 |
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319 | WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(i_hemis) |
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320 | WRITE(numout,*) ' zht_i_ini : ', zht_i_ini(i_hemis) |
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321 | ENDIF ! ztests .NE. 4 |
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322 | ENDIF |
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323 | |
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324 | END DO ! i_hemis |
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325 | |
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326 | !--------------------------------------------------------------------- |
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327 | ! 3.3) Space-dependent arrays for ice state variables |
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328 | !--------------------------------------------------------------------- |
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329 | |
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330 | ! Ice concentration, thickness and volume, ice salinity, ice age, surface temperature |
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331 | DO jl = 1, jpl ! loop over categories |
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332 | DO jj = 1, jpj |
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333 | DO ji = 1, jpi |
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334 | a_i(ji,jj,jl) = zswitch(ji,jj) * za_i_ini (jl,zhemis(ji,jj)) ! concentration |
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335 | ht_i(ji,jj,jl) = zswitch(ji,jj) * zh_i_ini(jl,zhemis(ji,jj)) ! ice thickness |
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336 | ht_s(ji,jj,jl) = ht_i(ji,jj,jl) * ( zht_s_ini( zhemis(ji,jj) ) / zht_i_ini( zhemis(ji,jj) ) ) ! snow depth |
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337 | sm_i(ji,jj,jl) = zswitch(ji,jj) * zsm_i_ini(zhemis(ji,jj)) ! salinity |
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338 | o_i(ji,jj,jl) = zswitch(ji,jj) * 1._wp ! age (1 day) |
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339 | t_su(ji,jj,jl) = zswitch(ji,jj) * ztm_i_ini(zhemis(ji,jj)) + ( 1._wp - zswitch(ji,jj) ) * rt0 ! surf temp |
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340 | |
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341 | ! This case below should not be used if (ht_s/ht_i) is ok in namelist |
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342 | ! In case snow load is in excess that would lead to transformation from snow to ice |
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343 | ! Then, transfer the snow excess into the ice (different from limthd_dh) |
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344 | zdh = MAX( 0._wp, ( rhosn * ht_s(ji,jj,jl) + ( rhoic - rau0 ) * ht_i(ji,jj,jl) ) * r1_rau0 ) |
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345 | ! recompute ht_i, ht_s avoiding out of bounds values |
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346 | ht_i(ji,jj,jl) = MIN( hi_max(jl), ht_i(ji,jj,jl) + zdh ) |
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347 | ht_s(ji,jj,jl) = MAX( 0._wp, ht_s(ji,jj,jl) - zdh * rhoic * r1_rhosn ) |
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348 | |
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349 | ! ice volume, salt content, age content |
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350 | v_i(ji,jj,jl) = ht_i(ji,jj,jl) * a_i(ji,jj,jl) ! ice volume |
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351 | v_s(ji,jj,jl) = ht_s(ji,jj,jl) * a_i(ji,jj,jl) ! snow volume |
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352 | smv_i(ji,jj,jl) = MIN( sm_i(ji,jj,jl) , sss_m(ji,jj) ) * v_i(ji,jj,jl) ! salt content |
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353 | oa_i(ji,jj,jl) = o_i(ji,jj,jl) * a_i(ji,jj,jl) ! age content |
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354 | END DO |
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355 | END DO |
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356 | END DO |
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357 | |
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358 | ! Snow temperature and heat content |
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359 | DO jk = 1, nlay_s |
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360 | DO jl = 1, jpl ! loop over categories |
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361 | DO jj = 1, jpj |
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362 | DO ji = 1, jpi |
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363 | t_s(ji,jj,jk,jl) = zswitch(ji,jj) * ztm_i_ini(zhemis(ji,jj)) + ( 1._wp - zswitch(ji,jj) ) * rt0 |
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364 | ! Snow energy of melting |
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365 | e_s(ji,jj,jk,jl) = zswitch(ji,jj) * rhosn * ( cpic * ( rt0 - t_s(ji,jj,jk,jl) ) + lfus ) |
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366 | |
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367 | ! Mutliply by volume, and divide by number of layers to get heat content in J/m2 |
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368 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * v_s(ji,jj,jl) * r1_nlay_s |
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369 | END DO |
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370 | END DO |
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371 | END DO |
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372 | END DO |
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373 | |
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374 | ! Ice salinity, temperature and heat content |
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375 | DO jk = 1, nlay_i |
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376 | DO jl = 1, jpl ! loop over categories |
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377 | DO jj = 1, jpj |
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378 | DO ji = 1, jpi |
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379 | t_i(ji,jj,jk,jl) = zswitch(ji,jj) * ztm_i_ini(zhemis(ji,jj)) + ( 1._wp - zswitch(ji,jj) ) * rt0 |
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380 | s_i(ji,jj,jk,jl) = zswitch(ji,jj) * zsm_i_ini(zhemis(ji,jj)) !+ ( 1._wp - zswitch(ji,jj) ) * rn_simin |
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381 | ztmelts = - tmut * s_i(ji,jj,jk,jl) + rt0 !Melting temperature in K |
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382 | |
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383 | ! heat content per unit volume |
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384 | e_i(ji,jj,jk,jl) = zswitch(ji,jj) * rhoic * ( cpic * ( ztmelts - t_i(ji,jj,jk,jl) ) & |
---|
385 | + lfus * ( 1._wp - (ztmelts-rt0) / MIN((t_i(ji,jj,jk,jl)-rt0),-epsi20) ) & |
---|
386 | - rcp * ( ztmelts - rt0 ) ) |
---|
387 | |
---|
388 | ! Mutliply by ice volume, and divide by number of layers to get heat content in J/m2 |
---|
389 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * v_i(ji,jj,jl) * r1_nlay_i |
---|
390 | END DO |
---|
391 | END DO |
---|
392 | END DO |
---|
393 | END DO |
---|
394 | |
---|
395 | tn_ice (:,:,:) = t_su (:,:,:) |
---|
396 | |
---|
397 | ENDIF !ln_limini_file |
---|
398 | |
---|
399 | ELSE |
---|
400 | ! if ln_iceini=false |
---|
401 | a_i (:,:,:) = 0._wp |
---|
402 | v_i (:,:,:) = 0._wp |
---|
403 | v_s (:,:,:) = 0._wp |
---|
404 | smv_i(:,:,:) = 0._wp |
---|
405 | oa_i (:,:,:) = 0._wp |
---|
406 | ht_i (:,:,:) = 0._wp |
---|
407 | ht_s (:,:,:) = 0._wp |
---|
408 | sm_i (:,:,:) = 0._wp |
---|
409 | o_i (:,:,:) = 0._wp |
---|
410 | |
---|
411 | e_i(:,:,:,:) = 0._wp |
---|
412 | e_s(:,:,:,:) = 0._wp |
---|
413 | |
---|
414 | DO jl = 1, jpl |
---|
415 | DO jk = 1, nlay_i |
---|
416 | t_i(:,:,jk,jl) = rt0 * tmask(:,:,1) |
---|
417 | END DO |
---|
418 | DO jk = 1, nlay_s |
---|
419 | t_s(:,:,jk,jl) = rt0 * tmask(:,:,1) |
---|
420 | END DO |
---|
421 | END DO |
---|
422 | |
---|
423 | ENDIF ! ln_iceini |
---|
424 | |
---|
425 | at_i (:,:) = 0.0_wp |
---|
426 | DO jl = 1, jpl |
---|
427 | at_i (:,:) = at_i (:,:) + a_i (:,:,jl) |
---|
428 | END DO |
---|
429 | ! |
---|
430 | !-------------------------------------------------------------------- |
---|
431 | ! 4) Global ice variables for output diagnostics | |
---|
432 | !-------------------------------------------------------------------- |
---|
433 | u_ice (:,:) = 0._wp |
---|
434 | v_ice (:,:) = 0._wp |
---|
435 | stress1_i(:,:) = 0._wp |
---|
436 | stress2_i(:,:) = 0._wp |
---|
437 | stress12_i(:,:) = 0._wp |
---|
438 | |
---|
439 | !-------------------------------------------------------------------- |
---|
440 | ! 5) Moments for advection |
---|
441 | !-------------------------------------------------------------------- |
---|
442 | |
---|
443 | sxopw (:,:) = 0._wp |
---|
444 | syopw (:,:) = 0._wp |
---|
445 | sxxopw(:,:) = 0._wp |
---|
446 | syyopw(:,:) = 0._wp |
---|
447 | sxyopw(:,:) = 0._wp |
---|
448 | |
---|
449 | sxice (:,:,:) = 0._wp ; sxsn (:,:,:) = 0._wp ; sxa (:,:,:) = 0._wp |
---|
450 | syice (:,:,:) = 0._wp ; sysn (:,:,:) = 0._wp ; sya (:,:,:) = 0._wp |
---|
451 | sxxice(:,:,:) = 0._wp ; sxxsn(:,:,:) = 0._wp ; sxxa (:,:,:) = 0._wp |
---|
452 | syyice(:,:,:) = 0._wp ; syysn(:,:,:) = 0._wp ; syya (:,:,:) = 0._wp |
---|
453 | sxyice(:,:,:) = 0._wp ; sxysn(:,:,:) = 0._wp ; sxya (:,:,:) = 0._wp |
---|
454 | |
---|
455 | sxc0 (:,:,:) = 0._wp ; sxe (:,:,:,:)= 0._wp |
---|
456 | syc0 (:,:,:) = 0._wp ; sye (:,:,:,:)= 0._wp |
---|
457 | sxxc0 (:,:,:) = 0._wp ; sxxe (:,:,:,:)= 0._wp |
---|
458 | syyc0 (:,:,:) = 0._wp ; syye (:,:,:,:)= 0._wp |
---|
459 | sxyc0 (:,:,:) = 0._wp ; sxye (:,:,:,:)= 0._wp |
---|
460 | |
---|
461 | sxsal (:,:,:) = 0._wp |
---|
462 | sysal (:,:,:) = 0._wp |
---|
463 | sxxsal (:,:,:) = 0._wp |
---|
464 | syysal (:,:,:) = 0._wp |
---|
465 | sxysal (:,:,:) = 0._wp |
---|
466 | |
---|
467 | sxage (:,:,:) = 0._wp |
---|
468 | syage (:,:,:) = 0._wp |
---|
469 | sxxage (:,:,:) = 0._wp |
---|
470 | syyage (:,:,:) = 0._wp |
---|
471 | sxyage (:,:,:) = 0._wp |
---|
472 | |
---|
473 | |
---|
474 | CALL wrk_dealloc( jpi, jpj, zhemis ) |
---|
475 | CALL wrk_dealloc( jpl, 2, zh_i_ini, za_i_ini, zv_i_ini ) |
---|
476 | CALL wrk_dealloc( 2, zht_i_ini, zat_i_ini, zvt_i_ini, zht_s_ini, zsm_i_ini, ztm_i_ini ) |
---|
477 | |
---|
478 | END SUBROUTINE lim_istate |
---|
479 | |
---|
480 | SUBROUTINE lim_istate_init |
---|
481 | !!------------------------------------------------------------------- |
---|
482 | !! *** ROUTINE lim_istate_init *** |
---|
483 | !! |
---|
484 | !! ** Purpose : Definition of initial state of the ice |
---|
485 | !! |
---|
486 | !! ** Method : Read the namiceini namelist and check the parameter |
---|
487 | !! values called at the first timestep (nit000) |
---|
488 | !! |
---|
489 | !! ** input : |
---|
490 | !! Namelist namiceini |
---|
491 | !! |
---|
492 | !! history : |
---|
493 | !! 8.5 ! 03-08 (C. Ethe) original code |
---|
494 | !! 8.5 ! 07-11 (M. Vancoppenolle) rewritten initialization |
---|
495 | !!----------------------------------------------------------------------------- |
---|
496 | ! |
---|
497 | INTEGER :: ios,ierr,inum_ice ! Local integer output status for namelist read |
---|
498 | INTEGER :: ji,jj |
---|
499 | INTEGER :: ifpr, ierror |
---|
500 | ! |
---|
501 | CHARACTER(len=100) :: cn_dir ! Root directory for location of ice files |
---|
502 | TYPE(FLD_N) :: sn_hicif, sn_hsnif, sn_frld, sn_sist |
---|
503 | TYPE(FLD_N) :: sn_tbif1, sn_tbif2, sn_tbif3 |
---|
504 | TYPE(FLD_N), DIMENSION(jpfldi) :: slf_i ! array of namelist informations on the fields to read |
---|
505 | ! |
---|
506 | NAMELIST/namiceini/ ln_iceini, ln_limini_file, rn_thres_sst, rn_hts_ini_n, rn_hts_ini_s, & |
---|
507 | & rn_hti_ini_n, rn_hti_ini_s, rn_ati_ini_n, rn_ati_ini_s, rn_smi_ini_n, & |
---|
508 | & rn_smi_ini_s, rn_tmi_ini_n, rn_tmi_ini_s, & |
---|
509 | & sn_hicif, sn_hsnif, sn_frld, sn_sist, & |
---|
510 | & sn_tbif1, sn_tbif2, sn_tbif3, cn_dir |
---|
511 | !!----------------------------------------------------------------------------- |
---|
512 | ! |
---|
513 | REWIND( numnam_ice_ref ) ! Namelist namiceini in reference namelist : Ice initial state |
---|
514 | READ ( numnam_ice_ref, namiceini, IOSTAT = ios, ERR = 901) |
---|
515 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceini in reference namelist', lwp ) |
---|
516 | |
---|
517 | REWIND( numnam_ice_cfg ) ! Namelist namiceini in configuration namelist : Ice initial state |
---|
518 | READ ( numnam_ice_cfg, namiceini, IOSTAT = ios, ERR = 902 ) |
---|
519 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceini in configuration namelist', lwp ) |
---|
520 | IF(lwm) WRITE ( numoni, namiceini ) |
---|
521 | |
---|
522 | slf_i(jp_hicif) = sn_hicif ; slf_i(jp_hsnif) = sn_hsnif |
---|
523 | slf_i(jp_frld) = sn_frld ; slf_i(jp_sist) = sn_sist |
---|
524 | slf_i(jp_tbif1) = sn_tbif1 ; slf_i(jp_tbif2) = sn_tbif2 ; slf_i(jp_tbif3) = sn_tbif3 |
---|
525 | |
---|
526 | ! Define the initial parameters |
---|
527 | ! ------------------------- |
---|
528 | |
---|
529 | IF(lwp) THEN |
---|
530 | WRITE(numout,*) |
---|
531 | WRITE(numout,*) 'lim_istate_init : ice parameters inititialisation ' |
---|
532 | WRITE(numout,*) '~~~~~~~~~~~~~~~' |
---|
533 | WRITE(numout,*) ' initialization with ice (T) or not (F) ln_iceini = ', ln_iceini |
---|
534 | WRITE(numout,*) ' initialization with ice (T) or not (F) ln_limini_file = ', ln_limini_file |
---|
535 | WRITE(numout,*) ' threshold water temp. for initial sea-ice rn_thres_sst = ', rn_thres_sst |
---|
536 | WRITE(numout,*) ' initial snow thickness in the north rn_hts_ini_n = ', rn_hts_ini_n |
---|
537 | WRITE(numout,*) ' initial snow thickness in the south rn_hts_ini_s = ', rn_hts_ini_s |
---|
538 | WRITE(numout,*) ' initial ice thickness in the north rn_hti_ini_n = ', rn_hti_ini_n |
---|
539 | WRITE(numout,*) ' initial ice thickness in the south rn_hti_ini_s = ', rn_hti_ini_s |
---|
540 | WRITE(numout,*) ' initial ice concentr. in the north rn_ati_ini_n = ', rn_ati_ini_n |
---|
541 | WRITE(numout,*) ' initial ice concentr. in the north rn_ati_ini_s = ', rn_ati_ini_s |
---|
542 | WRITE(numout,*) ' initial ice salinity in the north rn_smi_ini_n = ', rn_smi_ini_n |
---|
543 | WRITE(numout,*) ' initial ice salinity in the south rn_smi_ini_s = ', rn_smi_ini_s |
---|
544 | WRITE(numout,*) ' initial ice/snw temp in the north rn_tmi_ini_n = ', rn_tmi_ini_n |
---|
545 | WRITE(numout,*) ' initial ice/snw temp in the south rn_tmi_ini_s = ', rn_tmi_ini_s |
---|
546 | ENDIF |
---|
547 | |
---|
548 | IF( ln_limini_file ) THEN ! Ice initialization using input file |
---|
549 | ! |
---|
550 | ierr = alloc_lim_istate_init() |
---|
551 | ! |
---|
552 | ! CALL iom_open( 'Ice_initialization.nc', inum_ice ) |
---|
553 | ! ! |
---|
554 | ! IF( inum_ice > 0 ) THEN |
---|
555 | ! IF(lwp) WRITE(numout,*) |
---|
556 | ! IF(lwp) WRITE(numout,*) ' ice state initialization with : Ice_initialization.nc' |
---|
557 | ! |
---|
558 | ! CALL iom_get( inum_ice, jpdom_data, 'hicif', hicif_ini ) |
---|
559 | ! CALL iom_get( inum_ice, jpdom_data, 'hsnif', hsnif_ini ) |
---|
560 | ! CALL iom_get( inum_ice, jpdom_data, 'frld' , frld_ini ) |
---|
561 | ! CALL iom_get( inum_ice, jpdom_data, 'ts' , sist_ini ) |
---|
562 | ! CALL iom_get( inum_ice, jpdom_unknown, 'tbif', tbif_ini(1:nlci,1:nlcj,:), & |
---|
563 | ! & kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,3 /) ) |
---|
564 | ! ! put some values in the extra-halo... |
---|
565 | |
---|
566 | ! set si structure |
---|
567 | ALLOCATE( si(jpfldi), STAT=ierror ) |
---|
568 | IF( ierror > 0 ) THEN |
---|
569 | CALL ctl_stop( 'Ice_ini in limistate: unable to allocate si structure' ) ; RETURN |
---|
570 | ENDIF |
---|
571 | |
---|
572 | DO ifpr= 1, jpfldi |
---|
573 | ALLOCATE( si(ifpr)%fnow(jpi,jpj,1) ) |
---|
574 | ALLOCATE( si(ifpr)%fdta(jpi,jpj,1,2) ) |
---|
575 | END DO |
---|
576 | |
---|
577 | ! fill si with slf_i and control print |
---|
578 | CALL fld_fill( si, slf_i, cn_dir, 'lim_istate', 'lim istate ini', 'numnam_ice' ) |
---|
579 | |
---|
580 | CALL fld_read( nit000, 1, si ) ! input fields provided at the current time-step |
---|
581 | |
---|
582 | hicif_ini(:,:) = si(jp_hicif)%fnow(:,:,1) |
---|
583 | hsnif_ini(:,:) = si(jp_hsnif)%fnow(:,:,1) |
---|
584 | frld_ini(:,:) = si(jp_frld)%fnow(:,:,1) |
---|
585 | sist_ini(:,:) = si(jp_sist)%fnow(:,:,1) |
---|
586 | tbif_ini(:,:,1) = si(jp_tbif1)%fnow(:,:,1) |
---|
587 | tbif_ini(:,:,2) = si(jp_tbif2)%fnow(:,:,1) |
---|
588 | tbif_ini(:,:,3) = si(jp_tbif3)%fnow(:,:,1) |
---|
589 | |
---|
590 | DO jj = nlcj+1, jpj ; tbif_ini(1:nlci,jj,:) = tbif_ini(1:nlci,nlej,:) ; END DO |
---|
591 | DO ji = nlci+1, jpi ; tbif_ini(ji ,: ,:) = tbif_ini(nlei ,: ,:) ; END DO |
---|
592 | |
---|
593 | ! CALL iom_close( inum_ice) |
---|
594 | ! ! |
---|
595 | ! ENDIF |
---|
596 | ENDIF |
---|
597 | |
---|
598 | END SUBROUTINE lim_istate_init |
---|
599 | |
---|
600 | SUBROUTINE limini_file |
---|
601 | !!----------------------------------------------------------------------------- |
---|
602 | !! |
---|
603 | !! |
---|
604 | !! |
---|
605 | !! |
---|
606 | !!----------------------------------------------------------------------------- |
---|
607 | INTEGER :: jl,ji,jj,jk |
---|
608 | INTEGER :: jl0 |
---|
609 | INTEGER :: i_fill,jit,jjt |
---|
610 | REAL(wp) :: ztest_1, ztest_2, ztest_3, ztest_4, ztests, zsigma, zarg, zA, zV, zA_cons, zV_cons, zconv,zH |
---|
611 | REAL(wp) :: eps=1.e-6 |
---|
612 | REAL(wp) :: zmin,zmax |
---|
613 | !rbb REAL(wp) :: epsi20,ztmelts,zdh |
---|
614 | REAL(wp) ::ztmelts,zdh |
---|
615 | |
---|
616 | REAL(wp), POINTER, DIMENSION(:,:) :: zhm_i_ini, zat_i_ini, zvt_i_ini, zhm_s_ini, zsm_i_ini |
---|
617 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zv_i_ini |
---|
618 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zht_i_ini,za_i_ini |
---|
619 | REAL(wp), POINTER, DIMENSION(:,:) :: zidto ! ice indicator |
---|
620 | !----------------------------------------------------------------------------- |
---|
621 | IF(lwp)WRITE(numout,*)"limistate: read file : " |
---|
622 | |
---|
623 | CALL wrk_alloc(jpl,jpi,jpj, zv_i_ini) |
---|
624 | CALL wrk_alloc( jpi,jpj, zhm_i_ini, zat_i_ini, zvt_i_ini, zhm_s_ini, zsm_i_ini ) |
---|
625 | CALL wrk_alloc( jpl,jpi,jpj,zht_i_ini,za_i_ini) |
---|
626 | CALL wrk_alloc( jpi,jpj,zidto ) |
---|
627 | |
---|
628 | zhm_i_ini(:,:) = hicif_ini(:,:) ! ice thickness |
---|
629 | zat_i_ini(:,:) = 1._wp - frld_ini(:,:) ! ice concentration |
---|
630 | zvt_i_ini(:,:) = zhm_i_ini(:,:) * zat_i_ini(:,:) ! ice volume |
---|
631 | zhm_s_ini(:,:) = hsnif_ini(:,:) ! snow depth |
---|
632 | |
---|
633 | zht_i_ini(:,:,:) = 0._wp |
---|
634 | za_i_ini(:,:,:) = 0._wp |
---|
635 | zv_i_ini(:,:,:) = 0._wp |
---|
636 | |
---|
637 | zat_i_ini(:,:) = MIN( zat_i_ini(:,:) , 1.0_wp ) |
---|
638 | |
---|
639 | |
---|
640 | DO ji = 1, jpi |
---|
641 | DO jj = 1, jpj |
---|
642 | |
---|
643 | IF( zat_i_ini(ji,jj) .GT. 0._wp .AND. zhm_i_ini(ji,jj) .GT. 0._wp )THEN |
---|
644 | |
---|
645 | |
---|
646 | IF( gphit(ji,jj) .GE. 0._wp )THEN ; zsm_i_ini(ji,jj) = rn_smi_ini_n |
---|
647 | ELSE ; zsm_i_ini(ji,jj) = rn_smi_ini_s |
---|
648 | ENDIF |
---|
649 | |
---|
650 | jl0 = 1 |
---|
651 | DO jl = 2, jpl |
---|
652 | IF ( ( zhm_i_ini(ji,jj) .GT. hi_max(jl-1) ) .AND. & |
---|
653 | ( zhm_i_ini(ji,jj) .LE. hi_max(jl) ) ) THEN |
---|
654 | jl0 = jl |
---|
655 | ENDIF |
---|
656 | END DO |
---|
657 | |
---|
658 | IF( jl0==1 )THEN |
---|
659 | |
---|
660 | zht_i_ini(1,ji,jj) = zhm_i_ini(ji,jj) |
---|
661 | za_i_ini(1,ji,jj) = zat_i_ini(ji,jj) |
---|
662 | zht_i_ini(2:jpl,ji,jj) = 0._wp |
---|
663 | za_i_ini(2:jpl,ji,jj) = 0._wp |
---|
664 | |
---|
665 | ELSE ! jl0 ne 1 |
---|
666 | ztest_1 = 0 ; ztest_2 = 0 ; ztest_3 = 0 ; ztest_4 = 0 |
---|
667 | |
---|
668 | DO i_fill = jpl, 1, -1 |
---|
669 | IF( ( ztest_1 + ztest_2 + ztest_3 + ztest_4 ) .NE. 4 ) THEN |
---|
670 | |
---|
671 | !---------------------------- |
---|
672 | ! fill the i_fill categories |
---|
673 | !---------------------------- |
---|
674 | ! *** 1 category to fill |
---|
675 | IF( i_fill .EQ. 1 ) THEN |
---|
676 | zht_i_ini(1,ji,jj) = zhm_i_ini(ji,jj) |
---|
677 | za_i_ini(1,ji,jj) = zat_i_ini(ji,jj) |
---|
678 | zht_i_ini(2:jpl,ji,jj) = 0._wp |
---|
679 | za_i_ini(2:jpl,ji,jj) = 0._wp |
---|
680 | ELSE |
---|
681 | |
---|
682 | ! *** >1 categores to fill |
---|
683 | !--- Ice thicknesses in the i_fill - 1 first categories |
---|
684 | DO jl = 1, i_fill - 1 |
---|
685 | zht_i_ini(jl,ji,jj) = 0.5 * ( hi_max(jl) + hi_max(jl-1) ) |
---|
686 | END DO |
---|
687 | |
---|
688 | !--- jl0: most likely index where cc will be maximum |
---|
689 | DO jl = 1, jpl |
---|
690 | IF ( ( zhm_i_ini(ji,jj) .GT. hi_max(jl-1) ) .AND. & |
---|
691 | ( zhm_i_ini(ji,jj) .LE. hi_max(jl) ) ) THEN |
---|
692 | jl0 = jl |
---|
693 | ENDIF |
---|
694 | END DO |
---|
695 | jl0 = MIN(jl0, i_fill) |
---|
696 | |
---|
697 | !--- Concentrations |
---|
698 | za_i_ini(jl0,ji,jj) = zat_i_ini(ji,jj) / SQRT(REAL(jpl)) |
---|
699 | DO jl = 1, i_fill - 1 |
---|
700 | IF ( jl .NE. jl0 ) THEN |
---|
701 | zsigma = 0.5 * zhm_i_ini(ji,jj) |
---|
702 | zarg = ( zht_i_ini(jl,ji,jj) - zhm_i_ini(ji,jj) ) / zsigma |
---|
703 | za_i_ini(jl,ji,jj) = za_i_ini(jl0,ji,jj) * EXP(-zarg**2) |
---|
704 | ENDIF |
---|
705 | END DO |
---|
706 | |
---|
707 | zA = 0. ! sum of the areas in the jpl categories |
---|
708 | DO jl = 1, i_fill - 1 |
---|
709 | zA = zA + za_i_ini(jl,ji,jj) |
---|
710 | END DO |
---|
711 | za_i_ini(i_fill,ji,jj) = zat_i_ini(ji,jj) - zA ! ice conc in the last category |
---|
712 | IF ( i_fill .LT. jpl ) za_i_ini(i_fill+1:jpl, ji,jj) = 0._wp |
---|
713 | |
---|
714 | !--- Ice thickness in the last category |
---|
715 | zV = 0. ! sum of the volumes of the N-1 categories |
---|
716 | DO jl = 1, i_fill - 1 |
---|
717 | zV = zV + za_i_ini(jl,ji,jj)*zht_i_ini(jl,ji,jj) |
---|
718 | END DO |
---|
719 | zht_i_ini(i_fill,ji,jj) = ( zvt_i_ini(ji,jj) - zV ) /za_i_ini(i_fill,ji,jj) |
---|
720 | IF ( i_fill .LT. jpl ) zht_i_ini(i_fill+1:jpl, ji,jj) = 0._wp |
---|
721 | |
---|
722 | !--- volumes |
---|
723 | zv_i_ini(:,ji,jj) = za_i_ini(:,ji,jj) * zht_i_ini(:,ji,jj) |
---|
724 | IF ( i_fill .LT. jpl ) zv_i_ini(i_fill+1:jpl, ji,jj) = 0._wp |
---|
725 | |
---|
726 | ENDIF ! i_fill |
---|
727 | |
---|
728 | !--------------------- |
---|
729 | ! Compatibility tests |
---|
730 | !--------------------- |
---|
731 | ! Test 1: area conservation |
---|
732 | zA_cons = SUM(za_i_ini(:,ji,jj)) ; zconv = ABS(zat_i_ini(ji,jj) - zA_cons ) |
---|
733 | IF ( zconv .LT. 1.0e-6 ) THEN |
---|
734 | ztest_1 = 1 |
---|
735 | ELSE |
---|
736 | ! this write is useful |
---|
737 | !WRITE(numout,*) ' * TEST1 AREA NOT CONSERVED *** zA_cons = ', zA_cons,' zat_i_ini = ',zat_i_ini(ji,jj) |
---|
738 | !WRITE(numout,*) 'ji,jj,narea ',ji,jj,narea |
---|
739 | !WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(ji,jj) |
---|
740 | !WRITE(numout,*) ' zhm_i_ini : ', zhm_i_ini(ji,jj) |
---|
741 | !WRITE(numout,*) ' zht_i_ini(:,jij,jj) ',zht_i_ini(:,ji,jj) |
---|
742 | !WRITE(numout,*) ' za_i_ini(:,jij,jj) ',za_i_ini(:,ji,jj) |
---|
743 | !WRITE(numout,*) ' hi_max ',hi_max |
---|
744 | !WRITE(numout,*) ' jl0 = ',jl0 |
---|
745 | !WRITE(numout,*) ' vol = ',zvt_i_ini(ji,jj),SUM(zv_i_ini(:,ji,jj)) |
---|
746 | ztest_1 = 0 |
---|
747 | ENDIF |
---|
748 | |
---|
749 | ! Test 2: volume conservation |
---|
750 | zV_cons = SUM(zv_i_ini(:,ji,jj)) |
---|
751 | zconv = ABS(zvt_i_ini(ji,jj) - zV_cons) |
---|
752 | |
---|
753 | IF ( zconv .LT. 1.0e-6 ) THEN |
---|
754 | ztest_2 = 1 |
---|
755 | ELSE |
---|
756 | ! this write is useful |
---|
757 | !WRITE(numout,*) ' * TEST2 VOLUME NOT CONSERVED *** zV_cons = ', zV_cons, & |
---|
758 | ! ' zvt_i_ini = ', zvt_i_ini(ji,jj) |
---|
759 | !WRITE(numout,*) 'ji,jj,narea ',ji,jj,narea |
---|
760 | !WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(ji,jj) |
---|
761 | !WRITE(numout,*) ' zhm_i_ini : ', zhm_i_ini(ji,jj) |
---|
762 | !WRITE(numout,*) ' zht_i_ini(:,jij,jj) ',zht_i_ini(:,ji,jj) |
---|
763 | !WRITE(numout,*) ' za_i_ini(:,jij,jj) ',za_i_ini(:,ji,jj) |
---|
764 | !WRITE(numout,*) ' hi_max ',hi_max |
---|
765 | !WRITE(numout,*) ' jl0 = ',jl0 |
---|
766 | ztest_2 = 0 |
---|
767 | ENDIF |
---|
768 | |
---|
769 | ! Test 3: thickness of the last category is in-bounds ? |
---|
770 | IF ( zht_i_ini(i_fill, ji,jj) .GT. hi_max(i_fill-1) ) THEN |
---|
771 | ztest_3 = 1 |
---|
772 | ELSE |
---|
773 | ! this write is useful |
---|
774 | !WRITE(numout,*) ' * TEST 3 THICKNESS OF THE LAST CATEGORY OUT OF BOUNDS *** zht_i_ini(i_fill,ji,jj) = ', & |
---|
775 | !zht_i_ini(i_fill,ji,jj), ' hi_max(jpl-1) = ', hi_max(i_fill-1) |
---|
776 | !WRITE(numout,*) 'ji,jj,narea ',ji,jj,narea |
---|
777 | !WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(ji,jj) |
---|
778 | !WRITE(numout,*) ' zhm_i_ini : ', zhm_i_ini(ji,jj) |
---|
779 | !WRITE(numout,*) ' zht_i_ini(:,jij,jj) ',zht_i_ini(:,ji,jj) |
---|
780 | !WRITE(numout,*) ' za_i_ini(:,jij,jj) ',za_i_ini(:,ji,jj) |
---|
781 | !WRITE(numout,*) ' hi_max ',hi_max |
---|
782 | !WRITE(numout,*) ' jl0 = ',jl0 |
---|
783 | ztest_3 = 0 |
---|
784 | ENDIF |
---|
785 | |
---|
786 | ! Test 4: positivity of ice concentrations |
---|
787 | ztest_4 = 1 |
---|
788 | DO jl = 1, jpl |
---|
789 | IF ( za_i_ini(jl,ji,jj) .LT. 0._wp ) THEN |
---|
790 | ! this write is useful |
---|
791 | !WRITE(numout,*) ' * TEST 4 POSITIVITY NOT OK FOR CAT ', jl, 'WITH A = ', za_i_ini(jl,ji,jj) |
---|
792 | !WRITE(numout,*) 'ji,jj,narea ',ji,jj,narea |
---|
793 | !WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(ji,jj) |
---|
794 | !WRITE(numout,*) ' zhm_i_ini : ', zhm_i_ini(ji,jj) |
---|
795 | !WRITE(numout,*) ' zht_i_ini(:,jij,jj) ',zht_i_ini(:,ji,jj) |
---|
796 | !WRITE(numout,*) ' za_i_ini(:,jij,jj) ',za_i_ini(:,ji,jj) |
---|
797 | !WRITE(numout,*) ' hi_max ',hi_max |
---|
798 | !WRITE(numout,*) ' jl0 = ',jl0 |
---|
799 | !WRITE(numout,*) |
---|
800 | ztest_4 = 0 |
---|
801 | ENDIF |
---|
802 | END DO |
---|
803 | |
---|
804 | ENDIF ! ztest_1 + ztest_2 + ztest_3 + ztest_4 |
---|
805 | |
---|
806 | ztests = ztest_1 + ztest_2 + ztest_3 + ztest_4 |
---|
807 | |
---|
808 | END DO ! i_fill |
---|
809 | |
---|
810 | !WRITE(numout,*) ' ztests : ', ztests |
---|
811 | !IF ( ztests .NE. 4 ) THEN |
---|
812 | !WRITE(numout,*) |
---|
813 | !WRITE(numout,*) ' !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ' |
---|
814 | !WRITE(numout,*) ' !!!! RED ALERT !!! ' |
---|
815 | !WRITE(numout,*) ' !!!! BIIIIP BIIIP BIIIIP BIIIIP !!!' |
---|
816 | !WRITE(numout,*) ' !!!! Something is wrong in the LIM3 initialization procedure ' |
---|
817 | !WRITE(numout,*) ' !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ' |
---|
818 | !WRITE(numout,*) 'ji,jj,narea ',ji,jj,narea |
---|
819 | !WRITE(numout,*) ' *** ztests is not equal to 4 ' |
---|
820 | !WRITE(numout,*) ' *** ztest_i (i=1,4) = ', ztest_1, ztest_2,ztest_3,ztest_4 |
---|
821 | !WRITE(numout,*) ' zat_i_ini : ', zat_i_ini(ji,jj) |
---|
822 | !WRITE(numout,*) ' zhm_i_ini : ', zhm_i_ini(ji,jj) |
---|
823 | !WRITE(numout,*) ' zht_i_ini(:,jij,jj) ',zht_i_ini(:,ji,jj) |
---|
824 | !WRITE(numout,*) ' za_i_ini(:,jij,jj) ',za_i_ini(:,ji,jj) |
---|
825 | !WRITE(numout,*) ' hi_max ',hi_max |
---|
826 | !ENDIF ! ztests .NE. 4 |
---|
827 | |
---|
828 | ENDIF ! jl0 ne 1 |
---|
829 | |
---|
830 | ENDIF ! zat_i_ini ne 0 |
---|
831 | END DO ! jj |
---|
832 | END DO ! ji |
---|
833 | |
---|
834 | |
---|
835 | !--------------------------------------------------------------------- |
---|
836 | ! 3.3) Space-dependent arrays for ice state variables |
---|
837 | !--------------------------------------------------------------------- |
---|
838 | |
---|
839 | ! Ice concentration, thickness and volume, ice salinity, ice age, surface |
---|
840 | ! temperature |
---|
841 | DO jl = 1, jpl ! loop over categories |
---|
842 | DO jj = 1, jpj |
---|
843 | DO ji = 1, jpi |
---|
844 | a_i(ji,jj,jl) = zswitch(ji,jj) * za_i_ini (jl,ji,jj) ! concentration |
---|
845 | ht_i(ji,jj,jl) = zswitch(ji,jj) * zht_i_ini(jl,ji,jj) !ice thickness |
---|
846 | |
---|
847 | IF( zhm_i_ini( ji,jj ) .GT. 0_wp )THEN ; ht_s(ji,jj,jl) = ht_i(ji,jj,jl) * ( zhm_s_ini( ji,jj ) / zhm_i_ini( ji,jj ) ) |
---|
848 | ELSE ; ht_s(ji,jj,jl) = 0._wp |
---|
849 | ENDIF |
---|
850 | sm_i(ji,jj,jl) = zswitch(ji,jj) * zsm_i_ini(ji,jj) !+ (1._wp - zswitch(ji,jj) ) * rn_simin ! salinity |
---|
851 | o_i(ji,jj,jl) = zswitch(ji,jj) * 1._wp + ( 1._wp -zswitch(ji,jj) ) ! age |
---|
852 | t_su(ji,jj,jl) = sist_ini(ji,jj) |
---|
853 | |
---|
854 | ! This case below should not be used if (ht_s/ht_i) is ok in |
---|
855 | ! namelist |
---|
856 | ! In case snow load is in excess that would lead to |
---|
857 | ! transformation from snow to ice |
---|
858 | ! Then, transfer the snow excess into the ice (different from |
---|
859 | ! limthd_dh) |
---|
860 | zdh = MAX( 0._wp, ( rhosn * ht_s(ji,jj,jl) + ( rhoic - rau0 ) *ht_i(ji,jj,jl) ) * r1_rau0 ) |
---|
861 | ! recompute ht_i, ht_s avoiding out of bounds values |
---|
862 | ht_i(ji,jj,jl) = MIN( hi_max(jl), ht_i(ji,jj,jl) + zdh ) |
---|
863 | ht_s(ji,jj,jl) = MAX( 0._wp, ht_s(ji,jj,jl) - zdh * rhoic *r1_rhosn ) |
---|
864 | |
---|
865 | ! ice volume, salt content, age content |
---|
866 | v_i(ji,jj,jl) = ht_i(ji,jj,jl) * a_i(ji,jj,jl) !ice volume |
---|
867 | v_s(ji,jj,jl) = ht_s(ji,jj,jl) * a_i(ji,jj,jl) !snow volume |
---|
868 | smv_i(ji,jj,jl) = MIN( sm_i(ji,jj,jl) , sss_m(ji,jj) ) *v_i(ji,jj,jl) ! salt content |
---|
869 | oa_i(ji,jj,jl) = o_i(ji,jj,jl) * a_i(ji,jj,jl) !age content |
---|
870 | END DO ! ji |
---|
871 | END DO ! jj |
---|
872 | END DO ! jl |
---|
873 | |
---|
874 | !cbr |
---|
875 | DO jk = 1, nlay_s |
---|
876 | DO jl = 1, jpl ! loop over categories |
---|
877 | !rbb t_s(:,:,1,jl) = tbif_ini(:,:,1) |
---|
878 | t_s(:,:,1,jl) = tbif_ini(:,:,1)*zswitch(:,:)+ ( 1._wp - zswitch(:,:) ) * rt0 |
---|
879 | END DO ! jl |
---|
880 | END DO ! jk |
---|
881 | |
---|
882 | ! Snow temperature and heat content |
---|
883 | DO jk = 1, nlay_s |
---|
884 | DO jl = 1, jpl ! loop over categories |
---|
885 | DO jj = 1, jpj |
---|
886 | DO ji = 1, jpi |
---|
887 | !cbr??? t_s(ji,jj,jk,jl) = zswitch(ji,jj) * ztm_i_ini(ji,jj) + ( 1._wp - zswitch(ji,jj) ) * rt0 |
---|
888 | ! Snow energy of melting |
---|
889 | e_s(ji,jj,jk,jl) = zswitch(ji,jj) * rhosn * ( cpic * ( rt0 - t_s(ji,jj,jk,jl) ) + lfus ) |
---|
890 | |
---|
891 | ! Mutliply by volume, and divide by number of layers to get |
---|
892 | ! heat content in J/m2 |
---|
893 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * v_s(ji,jj,jl) *r1_nlay_s |
---|
894 | END DO ! ji |
---|
895 | END DO ! jj |
---|
896 | END DO ! jl |
---|
897 | END DO ! jk |
---|
898 | |
---|
899 | ! Ice salinity, temperature and heat content |
---|
900 | DO jk = 1, nlay_i |
---|
901 | DO jl = 1, jpl ! loop over categories |
---|
902 | DO jj = 1, jpj |
---|
903 | DO ji = 1, jpi |
---|
904 | !cbr??? t_i(ji,jj,jk,jl) = zswitch(ji,jj) * ztm_i_ini(ji,jj) + ( 1._wp - zswitch(ji,jj) ) * rt0 |
---|
905 | t_i(ji,jj,jk,jl) = tbif_ini(ji,jj,2)*zswitch(ji,jj)+ ( 1._wp - zswitch(ji,jj) ) * rt0 |
---|
906 | s_i(ji,jj,jk,jl) = zswitch(ji,jj) * zsm_i_ini(ji,jj) !+ ( 1._wp - zswitch(ji,jj) ) * rn_simin |
---|
907 | ztmelts = - tmut * s_i(ji,jj,jk,jl) + rt0 !Melting temperature in K |
---|
908 | |
---|
909 | ! heat content per unit volume |
---|
910 | e_i(ji,jj,jk,jl) = zswitch(ji,jj) * rhoic * ( cpic * ( ztmelts - t_i(ji,jj,jk,jl) ) & |
---|
911 | + lfus * ( 1._wp - (ztmelts-rt0) /MIN((t_i(ji,jj,jk,jl)-rt0),-epsi20) ) & |
---|
912 | - rcp * ( ztmelts - rt0 ) ) |
---|
913 | |
---|
914 | ! Mutliply by ice volume, and divide by number of layers to |
---|
915 | ! get heat content in J/m2 |
---|
916 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * v_i(ji,jj,jl) * r1_nlay_i |
---|
917 | END DO ! ji |
---|
918 | END DO ! jj |
---|
919 | END DO ! jl |
---|
920 | END DO ! jk |
---|
921 | |
---|
922 | !cbr tmp CALL wrk_dealloc(jpl,jpi,jpj, zht_i_ini, za_i_ini, zv_i_ini) |
---|
923 | CALL wrk_dealloc(jpl,jpi,jpj, zv_i_ini) |
---|
924 | CALL wrk_dealloc( jpl,jpi,jpj,zht_i_ini,za_i_ini) |
---|
925 | CALL wrk_dealloc( jpi,jpj, zhm_i_ini, zat_i_ini, zvt_i_ini, zhm_s_ini,zsm_i_ini ) |
---|
926 | CALL wrk_dealloc( jpi,jpj,zidto ) |
---|
927 | |
---|
928 | END SUBROUTINE limini_file |
---|
929 | |
---|
930 | |
---|
931 | INTEGER FUNCTION alloc_lim_istate_init() |
---|
932 | !!----------------------------------------------------------------------------- |
---|
933 | !! |
---|
934 | !! |
---|
935 | !! |
---|
936 | !! |
---|
937 | !!----------------------------------------------------------------------------- |
---|
938 | INTEGER :: ierr(1) |
---|
939 | !!----------------------------------------------------------------------------- |
---|
940 | ALLOCATE( hicif_ini(jpi,jpj) , hsnif_ini(jpi,jpj) , frld_ini(jpi,jpj) , sist_ini(jpi,jpj) , zswitch(jpi,jpj) , tbif_ini(jpi,jpj,3) , Stat=ierr(1) ) |
---|
941 | alloc_lim_istate_init = MAXVAL(ierr) |
---|
942 | IF( alloc_lim_istate_init /= 0 ) CALL ctl_warn( 'lim_istate_init: failed to allocate arrays') |
---|
943 | |
---|
944 | END FUNCTION alloc_lim_istate_init |
---|
945 | #else |
---|
946 | !!---------------------------------------------------------------------- |
---|
947 | !! Default option : Empty module NO LIM sea-ice model |
---|
948 | !!---------------------------------------------------------------------- |
---|
949 | CONTAINS |
---|
950 | SUBROUTINE lim_istate ! Empty routine |
---|
951 | END SUBROUTINE lim_istate |
---|
952 | #endif |
---|
953 | |
---|
954 | !!====================================================================== |
---|
955 | END MODULE limistate |
---|