1 | MODULE limupdate2 |
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2 | !!====================================================================== |
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3 | !! *** MODULE limupdate2 *** |
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4 | !! LIM-3 : Update of sea-ice global variables at the end of the time step |
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5 | !!====================================================================== |
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6 | !! History : 3.0 ! 2006-04 (M. Vancoppenolle) Original code |
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7 | !! 3.6 ! 2014-06 (C. Rousset) Complete rewriting/cleaning |
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8 | !!---------------------------------------------------------------------- |
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9 | #if defined key_lim3 |
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10 | !!---------------------------------------------------------------------- |
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11 | !! 'key_lim3' LIM3 sea-ice model |
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12 | !!---------------------------------------------------------------------- |
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13 | !! lim_update2 : computes update of sea-ice global variables from trend terms |
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14 | !!---------------------------------------------------------------------- |
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15 | USE limrhg ! ice rheology |
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16 | |
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17 | USE dom_oce |
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18 | USE oce ! dynamics and tracers variables |
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19 | USE in_out_manager |
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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 dom_ice |
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23 | USE phycst ! physical constants |
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24 | USE ice |
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25 | USE limdyn |
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26 | USE limtrp |
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27 | USE limthd |
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28 | USE limsbc |
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29 | USE limdiahsb |
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30 | USE limwri |
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31 | USE limrst |
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32 | USE thd_ice ! LIM thermodynamic sea-ice variables |
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33 | USE par_ice |
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34 | USE limitd_th |
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35 | USE limitd_me |
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36 | USE limvar |
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37 | USE prtctl ! Print control |
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38 | USE lbclnk ! lateral boundary condition - MPP exchanges |
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39 | USE wrk_nemo ! work arrays |
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40 | USE lib_fortran ! glob_sum |
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41 | USE timing ! Timing |
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42 | USE limcons ! conservation tests |
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43 | |
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44 | IMPLICIT NONE |
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45 | PRIVATE |
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46 | |
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47 | PUBLIC lim_update2 ! routine called by ice_step |
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48 | |
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49 | REAL(wp) :: epsi10 = 1.e-10_wp ! - - |
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50 | REAL(wp) :: epsi20 = 1.e-20_wp |
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51 | |
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52 | !! * Substitutions |
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53 | # include "vectopt_loop_substitute.h90" |
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54 | !!---------------------------------------------------------------------- |
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55 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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56 | !! $Id: limupdate.F90 3294 2012-01-28 16:44:18Z rblod $ |
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57 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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58 | !!---------------------------------------------------------------------- |
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59 | CONTAINS |
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60 | |
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61 | SUBROUTINE lim_update2 |
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62 | !!------------------------------------------------------------------- |
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63 | !! *** ROUTINE lim_update2 *** |
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64 | !! |
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65 | !! ** Purpose : Computes update of sea-ice global variables at |
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66 | !! the end of the time step. |
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67 | !! |
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68 | !!--------------------------------------------------------------------- |
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69 | INTEGER :: ji, jj, jk, jl, jm ! dummy loop indices |
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70 | INTEGER :: jbnd1, jbnd2 |
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71 | INTEGER :: i_ice_switch |
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72 | REAL(wp) :: zh, zsal |
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73 | ! |
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74 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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75 | !!------------------------------------------------------------------- |
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76 | IF( nn_timing == 1 ) CALL timing_start('limupdate2') |
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77 | |
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78 | ! conservation test |
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79 | IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limupdate2', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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80 | |
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81 | !----------------- |
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82 | ! zap small values |
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83 | !----------------- |
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84 | CALL lim_itd_me_zapsmall |
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85 | |
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86 | CALL lim_var_glo2eqv |
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87 | |
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88 | !---------------------------------------------------- |
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89 | ! Rebin categories with thickness out of bounds |
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90 | !---------------------------------------------------- |
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91 | DO jm = 1, jpm |
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92 | jbnd1 = ice_cat_bounds(jm,1) |
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93 | jbnd2 = ice_cat_bounds(jm,2) |
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94 | IF (ice_ncat_types(jm) .GT. 1 ) CALL lim_itd_th_reb(jbnd1, jbnd2, jm) |
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95 | END DO |
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96 | |
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97 | !---------------------------------------------------------------------- |
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98 | ! Constrain the thickness of the smallest category above hiclim |
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99 | !---------------------------------------------------------------------- |
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100 | DO jm = 1, jpm |
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101 | DO jj = 1, jpj |
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102 | DO ji = 1, jpi |
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103 | jl = ice_cat_bounds(jm,1) |
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104 | IF( v_i(ji,jj,jl) > 0._wp .AND. ht_i(ji,jj,jl) < hiclim ) THEN |
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105 | zh = hiclim / ht_i(ji,jj,jl) |
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106 | ht_s(ji,jj,jl) = ht_s(ji,jj,jl) * zh |
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107 | ht_i(ji,jj,jl) = ht_i(ji,jj,jl) * zh |
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108 | a_i (ji,jj,jl) = a_i(ji,jj,jl) / zh |
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109 | ENDIF |
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110 | END DO !ji |
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111 | END DO !jj |
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112 | END DO !jm |
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113 | |
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114 | !----------------------------------------------------- |
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115 | ! ice concentration should not exceed amax |
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116 | !----------------------------------------------------- |
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117 | at_i(:,:) = 0._wp |
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118 | DO jl = 1, jpl |
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119 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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120 | END DO |
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121 | |
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122 | DO jl = 1, jpl |
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123 | DO jj = 1, jpj |
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124 | DO ji = 1, jpi |
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125 | IF( at_i(ji,jj) > amax .AND. a_i(ji,jj,jl) > 0._wp ) THEN |
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126 | a_i(ji,jj,jl) = a_i(ji,jj,jl) * ( 1._wp - ( 1._wp - amax / at_i(ji,jj) ) ) |
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127 | ht_i(ji,jj,jl) = v_i(ji,jj,jl) / a_i(ji,jj,jl) |
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128 | ENDIF |
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129 | END DO |
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130 | END DO |
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131 | END DO |
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132 | |
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133 | at_i(:,:) = 0.0 |
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134 | DO jl = 1, jpl |
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135 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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136 | END DO |
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137 | |
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138 | ! -------------------------------------- |
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139 | ! Final thickness distribution rebinning |
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140 | ! -------------------------------------- |
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141 | DO jm = 1, jpm |
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142 | jbnd1 = ice_cat_bounds(jm,1) |
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143 | jbnd2 = ice_cat_bounds(jm,2) |
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144 | IF (ice_ncat_types(jm) .GT. 1 ) CALL lim_itd_th_reb(jbnd1, jbnd2, jm) |
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145 | IF (ice_ncat_types(jm) .EQ. 1 ) THEN |
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146 | ENDIF |
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147 | END DO |
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148 | |
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149 | !----------------- |
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150 | ! zap small values |
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151 | !----------------- |
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152 | CALL lim_itd_me_zapsmall |
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153 | |
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154 | !--------------------- |
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155 | ! 2.11) Ice salinity |
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156 | !--------------------- |
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157 | IF ( num_sal == 2 ) THEN |
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158 | DO jl = 1, jpl |
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159 | DO jj = 1, jpj |
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160 | DO ji = 1, jpi |
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161 | zsal = smv_i(ji,jj,jl) |
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162 | smv_i(ji,jj,jl) = sm_i(ji,jj,jl) * v_i(ji,jj,jl) |
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163 | ! salinity stays in bounds |
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164 | i_ice_switch = 1._wp - MAX( 0._wp, SIGN( 1._wp, - v_i(ji,jj,jl) ) ) |
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165 | smv_i(ji,jj,jl) = i_ice_switch * MAX( MIN( s_i_max * v_i(ji,jj,jl), smv_i(ji,jj,jl) ), s_i_min * v_i(ji,jj,jl) ) !+ s_i_min * ( 1._wp - i_ice_switch ) * v_i(ji,jj,jl) |
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166 | ! associated salt flux |
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167 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsal ) * rhoic * r1_rdtice |
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168 | END DO ! ji |
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169 | END DO ! jj |
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170 | END DO !jl |
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171 | ENDIF |
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172 | |
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173 | !------------------------------------------------------------------------------ |
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174 | ! 2) Corrections to avoid wrong values | |
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175 | !------------------------------------------------------------------------------ |
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176 | ! Ice drift |
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177 | !------------ |
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178 | DO jj = 2, jpjm1 |
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179 | DO ji = 2, jpim1 |
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180 | IF ( at_i(ji,jj) == 0._wp ) THEN ! what to do if there is no ice |
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181 | IF ( at_i(ji+1,jj) == 0._wp ) u_ice(ji,jj) = 0._wp ! right side |
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182 | IF ( at_i(ji-1,jj) == 0._wp ) u_ice(ji-1,jj) = 0._wp ! left side |
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183 | IF ( at_i(ji,jj+1) == 0._wp ) v_ice(ji,jj) = 0._wp ! upper side |
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184 | IF ( at_i(ji,jj-1) == 0._wp ) v_ice(ji,jj-1) = 0._wp ! bottom side |
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185 | ENDIF |
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186 | END DO |
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187 | END DO |
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188 | !lateral boundary conditions |
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189 | CALL lbc_lnk( u_ice(:,:), 'U', -1. ) |
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190 | CALL lbc_lnk( v_ice(:,:), 'V', -1. ) |
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191 | !mask velocities |
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192 | u_ice(:,:) = u_ice(:,:) * tmu(:,:) |
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193 | v_ice(:,:) = v_ice(:,:) * tmv(:,:) |
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194 | |
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195 | ! ------------------------------------------------- |
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196 | ! Diagnostics |
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197 | ! ------------------------------------------------- |
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198 | d_a_i_thd(:,:,:) = a_i(:,:,:) - old_a_i(:,:,:) |
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199 | d_v_s_thd(:,:,:) = v_s(:,:,:) - old_v_s(:,:,:) |
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200 | d_v_i_thd(:,:,:) = v_i(:,:,:) - old_v_i(:,:,:) |
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201 | d_e_s_thd(:,:,:,:) = e_s(:,:,:,:) - old_e_s(:,:,:,:) |
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202 | d_e_i_thd(:,:,1:nlay_i,:) = e_i(:,:,1:nlay_i,:) - old_e_i(:,:,1:nlay_i,:) |
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203 | !?? d_oa_i_thd(:,:,:) = oa_i (:,:,:) - old_oa_i (:,:,:) |
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204 | d_smv_i_thd(:,:,:) = 0._wp |
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205 | IF( num_sal == 2 ) d_smv_i_thd(:,:,:) = smv_i(:,:,:) - old_smv_i(:,:,:) |
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206 | ! diag only (clem) |
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207 | dv_dt_thd(:,:,:) = d_v_i_thd(:,:,:) * r1_rdtice * rday |
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208 | |
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209 | ! heat content variation (W.m-2) |
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210 | DO jj = 1, jpj |
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211 | DO ji = 1, jpi |
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212 | diag_heat_dhc(ji,jj) = ( SUM( d_e_i_trp(ji,jj,1:nlay_i,:) + d_e_i_thd(ji,jj,1:nlay_i,:) ) + & |
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213 | & SUM( d_e_s_trp(ji,jj,1:nlay_s,:) + d_e_s_thd(ji,jj,1:nlay_s,:) ) ) * unit_fac * r1_rdtice / area(ji,jj) |
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214 | END DO |
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215 | END DO |
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216 | |
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217 | ! conservation test |
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218 | IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limupdate2', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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219 | |
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220 | IF(ln_ctl) THEN ! Control print |
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221 | CALL prt_ctl_info(' ') |
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222 | CALL prt_ctl_info(' - Cell values : ') |
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223 | CALL prt_ctl_info(' ~~~~~~~~~~~~~ ') |
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224 | CALL prt_ctl(tab2d_1=area , clinfo1=' lim_update2 : cell area :') |
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225 | CALL prt_ctl(tab2d_1=at_i , clinfo1=' lim_update2 : at_i :') |
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226 | CALL prt_ctl(tab2d_1=vt_i , clinfo1=' lim_update2 : vt_i :') |
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227 | CALL prt_ctl(tab2d_1=vt_s , clinfo1=' lim_update2 : vt_s :') |
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228 | CALL prt_ctl(tab2d_1=strength , clinfo1=' lim_update2 : strength :') |
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229 | CALL prt_ctl(tab2d_1=u_ice , clinfo1=' lim_update2 : u_ice :', tab2d_2=v_ice , clinfo2=' v_ice :') |
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230 | CALL prt_ctl(tab2d_1=old_u_ice , clinfo1=' lim_update2 : old_u_ice :', tab2d_2=old_v_ice , clinfo2=' old_v_ice :') |
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231 | |
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232 | DO jl = 1, jpl |
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233 | CALL prt_ctl_info(' ') |
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234 | CALL prt_ctl_info(' - Category : ', ivar1=jl) |
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235 | CALL prt_ctl_info(' ~~~~~~~~~~') |
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236 | CALL prt_ctl(tab2d_1=ht_i (:,:,jl) , clinfo1= ' lim_update2 : ht_i : ') |
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237 | CALL prt_ctl(tab2d_1=ht_s (:,:,jl) , clinfo1= ' lim_update2 : ht_s : ') |
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238 | CALL prt_ctl(tab2d_1=t_su (:,:,jl) , clinfo1= ' lim_update2 : t_su : ') |
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239 | CALL prt_ctl(tab2d_1=t_s (:,:,1,jl) , clinfo1= ' lim_update2 : t_snow : ') |
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240 | CALL prt_ctl(tab2d_1=sm_i (:,:,jl) , clinfo1= ' lim_update2 : sm_i : ') |
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241 | CALL prt_ctl(tab2d_1=o_i (:,:,jl) , clinfo1= ' lim_update2 : o_i : ') |
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242 | CALL prt_ctl(tab2d_1=a_i (:,:,jl) , clinfo1= ' lim_update2 : a_i : ') |
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243 | CALL prt_ctl(tab2d_1=old_a_i (:,:,jl) , clinfo1= ' lim_update2 : old_a_i : ') |
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244 | CALL prt_ctl(tab2d_1=d_a_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_a_i_thd : ') |
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245 | CALL prt_ctl(tab2d_1=v_i (:,:,jl) , clinfo1= ' lim_update2 : v_i : ') |
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246 | CALL prt_ctl(tab2d_1=old_v_i (:,:,jl) , clinfo1= ' lim_update2 : old_v_i : ') |
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247 | CALL prt_ctl(tab2d_1=d_v_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_v_i_thd : ') |
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248 | CALL prt_ctl(tab2d_1=v_s (:,:,jl) , clinfo1= ' lim_update2 : v_s : ') |
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249 | CALL prt_ctl(tab2d_1=old_v_s (:,:,jl) , clinfo1= ' lim_update2 : old_v_s : ') |
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250 | CALL prt_ctl(tab2d_1=d_v_s_thd (:,:,jl) , clinfo1= ' lim_update2 : d_v_s_thd : ') |
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251 | CALL prt_ctl(tab2d_1=e_i (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : e_i1 : ') |
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252 | CALL prt_ctl(tab2d_1=old_e_i (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : old_e_i1 : ') |
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253 | CALL prt_ctl(tab2d_1=d_e_i_thd (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : de_i1_thd : ') |
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254 | CALL prt_ctl(tab2d_1=e_i (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : e_i2 : ') |
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255 | CALL prt_ctl(tab2d_1=old_e_i (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : old_e_i2 : ') |
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256 | CALL prt_ctl(tab2d_1=d_e_i_thd (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : de_i2_thd : ') |
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257 | CALL prt_ctl(tab2d_1=e_s (:,:,1,jl) , clinfo1= ' lim_update2 : e_snow : ') |
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258 | CALL prt_ctl(tab2d_1=old_e_s (:,:,1,jl) , clinfo1= ' lim_update2 : old_e_snow : ') |
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259 | CALL prt_ctl(tab2d_1=d_e_s_thd (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : d_e_s_thd : ') |
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260 | CALL prt_ctl(tab2d_1=smv_i (:,:,jl) , clinfo1= ' lim_update2 : smv_i : ') |
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261 | CALL prt_ctl(tab2d_1=old_smv_i (:,:,jl) , clinfo1= ' lim_update2 : old_smv_i : ') |
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262 | CALL prt_ctl(tab2d_1=d_smv_i_thd(:,:,jl) , clinfo1= ' lim_update2 : d_smv_i_thd : ') |
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263 | CALL prt_ctl(tab2d_1=oa_i (:,:,jl) , clinfo1= ' lim_update2 : oa_i : ') |
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264 | CALL prt_ctl(tab2d_1=old_oa_i (:,:,jl) , clinfo1= ' lim_update2 : old_oa_i : ') |
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265 | CALL prt_ctl(tab2d_1=d_oa_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_oa_i_thd : ') |
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266 | |
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267 | DO jk = 1, nlay_i |
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268 | CALL prt_ctl_info(' - Layer : ', ivar1=jk) |
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269 | CALL prt_ctl(tab2d_1=t_i(:,:,jk,jl) , clinfo1= ' lim_update2 : t_i : ') |
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270 | END DO |
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271 | END DO |
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272 | |
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273 | CALL prt_ctl_info(' ') |
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274 | CALL prt_ctl_info(' - Heat / FW fluxes : ') |
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275 | CALL prt_ctl_info(' ~~~~~~~~~~~~~~~~~~ ') |
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276 | CALL prt_ctl(tab2d_1=sst_m , clinfo1= ' lim_update2 : sst : ', tab2d_2=sss_m , clinfo2= ' sss : ') |
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277 | |
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278 | CALL prt_ctl_info(' ') |
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279 | CALL prt_ctl_info(' - Stresses : ') |
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280 | CALL prt_ctl_info(' ~~~~~~~~~~ ') |
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281 | CALL prt_ctl(tab2d_1=utau , clinfo1= ' lim_update2 : utau : ', tab2d_2=vtau , clinfo2= ' vtau : ') |
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282 | CALL prt_ctl(tab2d_1=utau_ice , clinfo1= ' lim_update2 : utau_ice : ', tab2d_2=vtau_ice , clinfo2= ' vtau_ice : ') |
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283 | CALL prt_ctl(tab2d_1=u_oce , clinfo1= ' lim_update2 : u_oce : ', tab2d_2=v_oce , clinfo2= ' v_oce : ') |
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284 | ENDIF |
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285 | |
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286 | IF( nn_timing == 1 ) CALL timing_stop('limupdate2') |
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287 | |
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288 | END SUBROUTINE lim_update2 |
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289 | #else |
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290 | !!---------------------------------------------------------------------- |
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291 | !! Default option Empty Module No sea-ice model |
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292 | !!---------------------------------------------------------------------- |
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293 | CONTAINS |
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294 | SUBROUTINE lim_update2 ! Empty routine |
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295 | END SUBROUTINE lim_update2 |
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296 | |
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297 | #endif |
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298 | |
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299 | END MODULE limupdate2 |
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