1 | MODULE limthd_lac |
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2 | #if defined key_lim3 |
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3 | !!====================================================================== |
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4 | !! *** MODULE limthd_lac *** |
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5 | !! lateral thermodynamic growth of the ice |
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6 | !!====================================================================== |
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7 | |
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8 | !!---------------------------------------------------------------------- |
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9 | !! lim_lat_acr : lateral accretion of ice |
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10 | !! * Modules used |
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11 | USE par_oce ! ocean parameters |
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12 | USE dom_oce |
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13 | USE in_out_manager |
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14 | USE phycst |
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15 | USE ice_oce ! ice variables |
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16 | USE thd_ice |
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17 | USE dom_ice |
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18 | USE par_ice |
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19 | USE ice |
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20 | USE iceini |
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21 | USE limtab |
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22 | USE limicepoints |
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23 | USE taumod |
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24 | USE blk_oce |
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25 | USE limcons |
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26 | |
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27 | IMPLICIT NONE |
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28 | PRIVATE |
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29 | |
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30 | !! * Routine accessibility |
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31 | PUBLIC lim_thd_lac ! called by lim_thd |
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32 | |
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33 | !! * Module variables |
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34 | REAL(wp) :: & ! constant values |
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35 | epsi20 = 1.e-20 , & |
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36 | epsi13 = 1.e-13 , & |
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37 | epsi11 = 1.e-13 , & |
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38 | epsi03 = 1.e-03 , & |
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39 | epsi06 = 1.e-06 , & |
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40 | zeps = 1.e-10 , & |
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41 | zzero = 0.e0 , & |
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42 | zone = 1.e0 |
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43 | |
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44 | !!---------------------------------------------------------------------- |
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45 | !! LIM 2.0, UCL-LOCEAN-IPSL (2005) |
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46 | !! $Header: /home/opalod/NEMOCVSROOT/NEMO/LIM_SRC/limthd_lac.F90,v 1.5 2005/03/27 18:34:42 opalod Exp $ |
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47 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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48 | !!---------------------------------------------------------------------- |
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49 | |
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50 | CONTAINS |
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51 | |
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52 | SUBROUTINE lim_thd_lac |
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53 | !!------------------------------------------------------------------- |
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54 | !! *** ROUTINE lim_thd_lac *** |
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55 | !! |
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56 | !! ** Purpose : Computation of the evolution of the ice thickness and |
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57 | !! concentration as a function of the heat balance in the leads. |
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58 | !! It is only used for lateral accretion |
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59 | !! |
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60 | !! ** Method : Ice is formed in the open water when ocean lose heat |
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61 | !! (heat budget of open water Bl is negative) . |
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62 | !! Computation of the increase of 1-A (ice concentration) fol- |
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63 | !! lowing the law : |
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64 | !! (dA/dt)acc = F[ (1-A)/(1-a) ] * [ Bl / (Li*h0) ] |
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65 | !! where - h0 is the thickness of ice created in the lead |
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66 | !! - a is a minimum fraction for leads |
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67 | !! - F is a monotonic non-increasing function defined as: |
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68 | !! F(X)=( 1 - X**exld )**(1.0/exld) |
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69 | !! - exld is the exponent closure rate (=2 default val.) |
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70 | !! |
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71 | !! ** Action : - Adjustment of snow and ice thicknesses and heat |
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72 | !! content in brine pockets |
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73 | !! - Updating ice internal temperature |
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74 | !! - Computation of variation of ice volume and mass |
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75 | !! - Computation of frldb after lateral accretion and |
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76 | !! update ht_s_b, ht_i_b and tbif_1d(:,:) |
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77 | !! |
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78 | !! ** References : Not available yet |
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79 | !! |
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80 | !! History : |
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81 | !! 1.0 ! 01-04 (T. Fichefet, M. A. Morales Maqueda, H. Goosse) |
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82 | !! ! original code |
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83 | !! 2.0 ! 02-08 (C. Ethe, G. Madec) F90, mpp |
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84 | !! 3.0 ! 12-05 (M. Vancoppenolle) Thorough rewrite of the routine |
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85 | !! Salinity variations in sea ice, |
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86 | !! Multi-layer code |
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87 | !! 3.1 ! 01-06 (M. Vancoppenolle) Ice thickness distribution |
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88 | !! 3.2 ! 04-07 (M. Vancoppenolle) Mass and energy conservation tested |
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89 | !!------------------------------------------------------------------------ |
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90 | !! * Arguments |
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91 | !! * Local variables |
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92 | INTEGER :: & |
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93 | ji,jj,jk,jl,jm , & !: dummy loop indices |
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94 | layer , & !: layer index |
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95 | nbpac !: nb of pts for lateral accretion |
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96 | |
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97 | INTEGER :: & |
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98 | zji , & !: ji of dummy test point |
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99 | zjj , & !: jj of dummy test point |
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100 | iter !: iteration for frazil ice computation |
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101 | |
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102 | INTEGER, DIMENSION(jpij) :: & |
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103 | zcatac , & !: indexes of categories where new ice grows |
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104 | zswinew !: switch for new ice or not |
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105 | |
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106 | REAL(wp), DIMENSION(jpij) :: & |
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107 | zv_newice , & !: volume of accreted ice |
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108 | za_newice , & !: fractional area of accreted ice |
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109 | zh_newice , & !: thickness of accreted ice |
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110 | ze_newice , & !: heat content of accreted ice |
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111 | zs_newice , & !: salinity of accreted ice |
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112 | zo_newice , & !: age of accreted ice |
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113 | zdv_res , & !: residual volume in case of excessive heat budget |
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114 | zda_res , & !: residual area in case of excessive heat budget |
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115 | zat_i_ac , & !: total ice fraction |
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116 | zat_i_lev , & !: total ice fraction for level ice only (type 1) |
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117 | zdh_frazb , & !: accretion of frazil ice at the ice bottom |
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118 | zvrel_ac !: relative ice / frazil velocity (1D vector) |
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119 | |
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120 | REAL(wp), DIMENSION(jpij,jpl) :: & |
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121 | zhice_old , & !: previous ice thickness |
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122 | zdummy , & !: dummy thickness of new ice |
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123 | zdhicbot , & !: thickness of new ice which is accreted vertically |
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124 | zv_old , & !: old volume of ice in category jl |
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125 | za_old , & !: old area of ice in category jl |
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126 | za_i_ac , & !: 1-D version of a_i |
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127 | zv_i_ac , & !: 1-D version of v_i |
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128 | zoa_i_ac , & !: 1-D version of oa_i |
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129 | zsmv_i_ac !: 1-D version of smv_i |
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130 | |
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131 | REAL(wp), DIMENSION(jpij,jkmax,jpl) :: & |
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132 | ze_i_ac !: 1-D version of e_i |
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133 | |
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134 | REAL(wp), DIMENSION(jpij) :: & |
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135 | zqbgow , & !: heat budget of the open water (negative) |
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136 | zdhex !: excessively thick accreted sea ice (hlead-hice) |
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137 | |
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138 | REAL(wp) :: & |
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139 | ztmelts , & !: melting point of an ice layer |
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140 | zdv , & !: increase in ice volume in each category |
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141 | zfrazb !: fraction of frazil ice accreted at the ice bottom |
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142 | |
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143 | ! Redistribution of energy after bottom accretion |
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144 | REAL(wp) :: & !: Energy redistribution |
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145 | zqold , & !: old ice enthalpy |
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146 | zweight , & !: weight of redistribution |
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147 | zeps6 , & !: epsilon value |
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148 | zalphai , & !: factor describing how old and new layers overlap each other [m] |
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149 | zindb |
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150 | |
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151 | REAL(wp), DIMENSION(jpij,jkmax+1,jpl) :: & |
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152 | zqm0 , & !: old layer-system heat content |
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153 | zthick0 !: old ice thickness |
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154 | |
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155 | ! Frazil ice collection thickness |
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156 | LOGICAL :: & !: iterate frazil ice collection thickness |
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157 | iterate_frazil |
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158 | |
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159 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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160 | zvrel !: relative ice / frazil velocity |
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161 | |
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162 | REAL(wp) :: & |
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163 | zgamafr , & !: mult. coeff. between frazil vel. and wind speed |
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164 | ztenagm , & !: square root of wind stress |
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165 | zvfrx , & !: x-component of frazil velocity |
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166 | zvfry , & !: y-component of frazil velocity |
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167 | zvgx , & !: x-component of ice velocity |
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168 | zvgy , & !: y-component of ice velocity |
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169 | ztaux , & !: x-component of wind stress |
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170 | ztauy , & !: y-component of wind stress |
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171 | ztwogp , & !: dummy factor including reduced gravity |
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172 | zvrel2 , & !: square of the relative ice-frazil velocity |
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173 | zf , & !: F for Newton-Raphson procedure |
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174 | zfp , & !: dF for Newton-Raphson procedure |
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175 | zhicol_new , & !: updated collection thickness |
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176 | zsqcd , & !: 1 / square root of ( airdensity * drag ) |
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177 | zhicrit !: minimum thickness of frazil ice |
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178 | |
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179 | ! Variables for energy conservation |
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180 | REAL (wp), DIMENSION(jpi,jpj) :: & ! |
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181 | vt_i_init, vt_i_final, & ! ice volume summed over categories |
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182 | vt_s_init, vt_s_final, & ! snow volume summed over categories |
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183 | et_i_init, et_i_final, & ! ice energy summed over categories |
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184 | et_s_init, et_s_final ! snow energy summed over categories |
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185 | |
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186 | REAL(wp) :: & |
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187 | zde , & ! :increment of energy in category jl |
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188 | zde_old , & ! :dummy variable for energy conservation |
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189 | zde_new , & ! :dummy variable for energy conservation |
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190 | zde_nice , & ! :dummy variable for energy conservation |
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191 | zde_diff ! :dummy variable for energy conservation |
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192 | |
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193 | CHARACTER (len = 15) :: fieldid |
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194 | |
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195 | !!-----------------------------------------------------------------------! |
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196 | |
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197 | et_i_init(:,:) = 0.0 |
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198 | et_s_init(:,:) = 0.0 |
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199 | vt_i_init(:,:) = 0.0 |
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200 | vt_s_init(:,:) = 0.0 |
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201 | IF(lwp) THEN |
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202 | WRITE(numout,*) 'lim_thd_lac : Creating new ice' |
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203 | WRITE(numout,*) '~~~~~~~~~~~' |
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204 | ENDIF |
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205 | zeps6 = 1.0e-6 |
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206 | |
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207 | !++++++++++ |
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208 | WRITE(numout,*) ' Step 0 ' |
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209 | WRITE(numout,*) ' v_i : ', v_i(jiindex,jjindex,1:jpl) |
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210 | WRITE(numout,*) ' a_i : ', a_i(jiindex,jjindex,1:jpl) |
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211 | DO jk = 1, nlay_i |
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212 | WRITE(numout,*) ' e_i : ', jk, e_i(jiindex,jjindex,jk,1:jpl) |
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213 | END DO |
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214 | !++++++++++ |
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215 | |
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216 | !------------------------------------------------------------------------------! |
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217 | ! 1) Conservation check and changes in each ice category |
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218 | !------------------------------------------------------------------------------! |
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219 | CALL lim_column_sum (jpl, v_i, vt_i_init) |
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220 | CALL lim_column_sum (jpl, v_s, vt_s_init) |
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221 | CALL lim_column_sum_energy (jpl, nlay_i, e_i, et_i_init) |
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222 | CALL lim_column_sum (jpl, e_s(:,:,1,:) , et_s_init) |
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223 | |
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224 | !------------------------------------------------------------------------------| |
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225 | ! 2) Convert units for ice internal energy |
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226 | !------------------------------------------------------------------------------| |
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227 | DO jl = 1, jpl |
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228 | DO jk = 1, nlay_i |
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229 | DO jj = 1, jpj |
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230 | DO ji = 1, jpi |
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231 | !Energy of melting q(S,T) [J.m-3] |
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232 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) / & |
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233 | MAX( area(ji,jj) * v_i(ji,jj,jl) , zeps ) * & |
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234 | nlay_i |
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235 | zindb = 1.0-MAX(0.0,SIGN(1.0,-v_i(ji,jj,jl))) !0 if no ice and 1 if yes |
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236 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl)*unit_fac*zindb |
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237 | END DO |
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238 | END DO |
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239 | END DO |
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240 | END DO |
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241 | |
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242 | !------------------------------------------------------------------------------! |
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243 | ! 3) Collection thickness of ice formed in leads and polynyas |
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244 | !------------------------------------------------------------------------------! |
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245 | ! hicol is the thickness of new ice. |
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246 | ! Frazil ice forms in open water, is transported by wind |
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247 | ! accumulates at the edge of the consolidated ice edge |
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248 | ! where it forms aggregates of a specific thickness called |
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249 | ! collection thickness. |
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250 | |
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251 | zvrel(:,:) = 0.0 |
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252 | |
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253 | ! Default new ice thickness |
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254 | DO jj = 1, jpj |
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255 | DO ji = 1, jpi |
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256 | hicol(ji,jj) = hiccrit(1) |
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257 | END DO |
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258 | END DO |
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259 | |
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260 | IF (fraz_swi.eq.1.0) THEN |
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261 | |
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262 | !-------------------- |
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263 | ! Physical constants |
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264 | !-------------------- |
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265 | hicol(:,:) = 0.0 |
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266 | |
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267 | zhicrit = 0.04 ! frazil ice thickness |
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268 | ztwogp = 2. * rau0 / ( grav * 0.3 * ( rau0 - rhoic ) ) ! reduced grav |
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269 | zsqcd = 1.0 / SQRT( 1.3 * cai ) ! 1/SQRT(airdensity*drag) |
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270 | zgamafr = 0.03 |
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271 | |
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272 | !+++++ |
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273 | WRITE(numout,*) ' ztwogp : ', ztwogp |
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274 | WRITE(numout,*) ' rau0 : ', rau0 |
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275 | WRITE(numout,*) ' grav : ', grav |
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276 | WRITE(numout,*) ' rhoic : ', rhoic |
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277 | !+++++ |
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278 | |
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279 | DO jj = 1, jpj |
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280 | DO ji = 1, jpi |
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281 | |
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282 | IF ( tms(ji,jj) * ( qcmif(ji,jj) - qldif(ji,jj) ) > 0.e0 ) THEN |
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283 | !------------- |
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284 | ! Wind stress |
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285 | !------------- |
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286 | ! C-grid wind stress components |
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287 | ztaux = ( gtaux(ji-1,jj ) * tmu(ji-1,jj ) & |
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288 | + gtaux(ji ,jj ) * tmu(ji ,jj ) ) / 2.0 |
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289 | ztauy = ( gtauy(ji ,jj-1) * tmv(ji ,jj-1) & |
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290 | + gtauy(ji ,jj ) * tmv(ji ,jj ) ) / 2.0 |
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291 | ! Square root of wind stress |
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292 | ztenagm = SQRT( SQRT( ztaux * ztaux + ztauy * ztauy ) ) |
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293 | ! !+++++ |
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294 | ! tension on B-grid |
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295 | ! ztaux = ( gtaux(ji ,jj ) * tmu(ji,jj ) & |
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296 | ! + gtaux(ji+1,jj ) * tmu(ji+1,jj ) & |
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297 | ! + gtaux(ji,jj+1 ) * tmu(ji,jj+1 ) & |
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298 | ! + gtaux(ji+1,jj+1) * tmu(ji+1,jj+1) ) / 4.0 |
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299 | ! ztauy = ( gtauy(ji ,jj ) * tmu(ji,jj ) & |
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300 | ! + gtauy(ji+1,jj ) * tmu(ji+1,jj ) & |
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301 | ! + gtauy(ji,jj+1 ) * tmu(ji,jj+1 ) & |
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302 | ! + gtauy(ji+1,jj+1) * tmu(ji+1,jj+1) ) / 4.0 |
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303 | ! !+++++ |
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304 | ! !+++++ |
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305 | ! IF ( ( ji.EQ.jiindex ) .AND. ( jj.EQ.jjindex ) ) THEN |
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306 | ! WRITE(numout,*) |
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307 | ! WRITE(numout,*) ' ztaux : ', ztaux |
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308 | ! WRITE(numout,*) ' ztauy : ', ztauy |
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309 | ! WRITE(numout,*) ' |tau| : ', ztenagm |
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310 | ! ENDIF |
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311 | ! !+++++ |
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312 | |
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313 | !--------------------- |
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314 | ! Frazil ice velocity |
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315 | !--------------------- |
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316 | zvfrx = zgamafr * zsqcd * ztaux / MAX(ztenagm,zeps) |
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317 | zvfry = zgamafr * zsqcd * ztauy / MAX(ztenagm,zeps) |
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318 | |
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319 | !------------------- |
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320 | ! Pack ice velocity |
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321 | !------------------- |
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322 | ! C-grid ice velocity |
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323 | zindb = MAX(0.0, SIGN(1.0, at_i(ji,jj) )) |
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324 | zvgx = zindb * ( u_ice(ji-1,jj ) * tmu(ji-1,jj ) & |
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325 | + u_ice(ji,jj ) * tmu(ji ,jj ) ) / 2.0 |
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326 | zvgy = zindb * ( v_ice(ji ,jj-1) * tmv(ji ,jj-1) & |
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327 | + v_ice(ji,jj ) * tmv(ji ,jj ) ) / 2.0 |
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328 | |
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329 | !----------------------------------- |
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330 | ! Relative frazil/pack ice velocity |
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331 | !----------------------------------- |
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332 | ! absolute relative velocity |
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333 | zvrel2 = MAX( ( zvfrx - zvgx ) * ( zvfrx - zvgx ) + & |
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334 | ( zvfry - zvgy ) * ( zvfry - zvgy ) & |
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335 | , 0.15 * 0.15 ) |
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336 | zvrel(ji,jj) = SQRT(zvrel2) |
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337 | |
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338 | !+++++++++ |
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339 | ! ! ice drift on B-grid |
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340 | ! zindb = MAX(0.0, SIGN(1.0, at_i(ji,jj) )) |
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341 | ! zvgx = zindb * ( u_ice(ji,jj ) * tmu(ji,jj ) & |
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342 | ! + u_ice(ji+1,jj ) * tmu(ji+1,jj) & |
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343 | ! + u_ice(ji,jj+1 ) * tmu(ji,jj+1) & |
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344 | ! + u_ice(ji+1,jj+1) * tmu(ji+1,jj+1) ) & |
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345 | ! / 4.0 |
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346 | ! zvgy = zindb * ( v_ice(ji,jj ) * tmu(ji,jj ) & |
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347 | ! + v_ice(ji+1,jj ) * tmu(ji+1,jj) & |
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348 | ! + v_ice(ji,jj+1 ) * tmu(ji,jj+1) & |
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349 | ! + v_ice(ji+1,jj+1) * tmu(ji+1,jj+1) ) & |
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350 | ! / 4.0 |
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351 | |
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352 | ! !+++++ |
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353 | ! IF ( ( ji.EQ.jiindex ) .AND. ( jj.EQ.jjindex ) ) THEN |
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354 | ! WRITE(numout,*) |
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355 | ! WRITE(numout,*) ' zvfrx : ', zvfrx |
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356 | ! WRITE(numout,*) ' zvfry : ', zvfry |
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357 | ! WRITE(numout,*) ' zvgx : ', zvgx |
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358 | ! WRITE(numout,*) ' zvgy : ', zvgx |
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359 | ! ENDIF |
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360 | ! !+++++ |
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361 | |
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362 | ! !+++++ |
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363 | ! IF ( ( ji.EQ.jiindex ) .AND. ( jj.EQ.jjindex ) ) THEN |
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364 | ! WRITE(numout,*) |
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365 | ! WRITE(numout,*) ' zvrel2: ', zvrel2 |
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366 | ! WRITE(numout,*) ' zvrel : ', zvrel(ji,jj) |
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367 | ! ENDIF |
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368 | |
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369 | ! hicol(ji,jj) = 10.0 ! starting value has to be high!!! |
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370 | |
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371 | !--------------------- |
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372 | ! Iterative procedure |
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373 | !--------------------- |
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374 | hicol(ji,jj) = zhicrit + 0.1 |
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375 | hicol(ji,jj) = zhicrit + hicol(ji,jj) / & |
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376 | ( hicol(ji,jj) * hicol(ji,jj) - & |
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377 | zhicrit * zhicrit ) * ztwogp * zvrel2 |
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378 | |
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379 | iter = 1 |
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380 | iterate_frazil = .true. |
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381 | |
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382 | DO WHILE ( iter .LT. 100 .AND. iterate_frazil ) |
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383 | zf = ( hicol(ji,jj) - zhicrit ) * ( hicol(ji,jj)**2 - zhicrit**2 ) & |
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384 | - hicol(ji,jj) * zhicrit * ztwogp * zvrel2 |
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385 | zfp = ( hicol(ji,jj) - zhicrit ) * ( 3.0*hicol(ji,jj) + zhicrit ) & |
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386 | - zhicrit * ztwogp * zvrel2 |
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387 | zhicol_new = hicol(ji,jj) - zf/zfp |
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388 | hicol(ji,jj) = zhicol_new |
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389 | |
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390 | !++++++++++++++++++++ |
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391 | ! IF ( ABS(-zf/zfp) .LT. 1.0d-9 ) THEN |
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392 | ! iterate_frazil = .false. |
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393 | ! ENDIF |
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394 | |
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395 | ! IF ( (ji.eq.jiindex).AND.(jj.eq.jjindex) ) THEN |
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396 | ! WRITE(numout,*) ' ------- iter = ', iter, & |
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397 | ! '----------------' |
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398 | ! WRITE(numout,*) ' iterate_frazil ', iterate_frazil |
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399 | ! WRITE(numout,*) ' zf, zfp : ', zf, zfp |
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400 | ! WRITE(numout,*) ' dhicol : ', -zf/zfp |
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401 | ! WRITE(numout,*) ' hicol : ', hicol(ji,jj) |
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402 | !++++++++++++++++++++ |
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403 | ! ENDIF |
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404 | |
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405 | iter = iter + 1 |
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406 | |
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407 | END DO ! do while |
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408 | ! hicol(ji,jj) = MAX( hicol(ji,jj) , 0.03) |
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409 | ! WRITE(numout,*) ' zvrel2 : ', zvrel2, ' zvrel : ', SQRT(zvrel2), ' hicol : ',hicol(ji,jj) |
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410 | |
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411 | ENDIF ! end of selection of pixels where ice forms |
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412 | |
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413 | !+++++++++++ |
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414 | IF ( hicol(ji,jj) .GT. 2.00 .OR. hicol(ji,jj) .LT. 0.0 ) THEN |
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415 | WRITE(numout,*) ' ALERTE 125 : hicol too bad ' |
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416 | WRITE(numout,*) ' ji,jj : ', ji, jj |
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417 | WRITE(numout,*) ' lat : ', gphit(ji,jj) |
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418 | WRITE(numout,*) ' lon : ', glamt(ji,jj) |
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419 | WRITE(numout,*) ' hicol : ', hicol(ji,jj) |
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420 | ENDIF |
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421 | !+++++++++++ |
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422 | |
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423 | END DO ! loop on ji ends |
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424 | END DO ! loop on jj ends |
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425 | |
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426 | WRITE(numout,*) ' ' |
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427 | WRITE(numout,*) ' Apres calcul : ' |
---|
428 | WRITE(numout,*) ' hicol : ', hicol(jiindex,jjindex) |
---|
429 | WRITE(numout,*) ' at_i : ', at_i(jiindex,jjindex) |
---|
430 | |
---|
431 | ENDIF ! End of computation of frazil ice collection thickness |
---|
432 | |
---|
433 | !------------------------------------------------------------------------------! |
---|
434 | ! 4) Identify grid points where new ice forms |
---|
435 | !------------------------------------------------------------------------------! |
---|
436 | |
---|
437 | !------------------------------------- |
---|
438 | ! Select points for new ice formation |
---|
439 | !------------------------------------- |
---|
440 | ! This occurs if open water energy budget is negative |
---|
441 | nbpac = 0 |
---|
442 | DO jj = 1, jpj |
---|
443 | DO ji = 1, jpi |
---|
444 | IF ( tms(ji,jj) * ( qcmif(ji,jj) - qldif(ji,jj) ) > 0.e0 ) THEN |
---|
445 | nbpac = nbpac + 1 |
---|
446 | npac( nbpac ) = (jj - 1) * jpi + ji |
---|
447 | IF ( (ji.eq.jiindex).AND.(jj.eq.jjindex) ) THEN |
---|
448 | jiindex_1d = nbpac |
---|
449 | ENDIF |
---|
450 | ENDIF |
---|
451 | END DO |
---|
452 | END DO |
---|
453 | |
---|
454 | IF(lwp) THEN |
---|
455 | WRITE(numout,*) 'lim_thd_lac : nbpac = ', nbpac |
---|
456 | ENDIF |
---|
457 | |
---|
458 | !------------------------------ |
---|
459 | ! Move from 2-D to 1-D vectors |
---|
460 | !------------------------------ |
---|
461 | ! If ocean gains heat do nothing |
---|
462 | ! 0therwise compute new ice formation |
---|
463 | |
---|
464 | IF ( nbpac > 0 ) THEN |
---|
465 | |
---|
466 | CALL tab_2d_1d( nbpac, zat_i_ac (1:nbpac) , at_i , & |
---|
467 | jpi, jpj, npac(1:nbpac) ) |
---|
468 | DO jl = 1, jpl |
---|
469 | CALL tab_2d_1d( nbpac, za_i_ac(1:nbpac,jl) , a_i(:,:,jl) , & |
---|
470 | jpi, jpj, npac(1:nbpac) ) |
---|
471 | CALL tab_2d_1d( nbpac, zv_i_ac(1:nbpac,jl) , v_i(:,:,jl) , & |
---|
472 | jpi, jpj, npac(1:nbpac) ) |
---|
473 | CALL tab_2d_1d( nbpac, zoa_i_ac(1:nbpac,jl) , oa_i(:,:,jl) , & |
---|
474 | jpi, jpj, npac(1:nbpac) ) |
---|
475 | CALL tab_2d_1d( nbpac, zsmv_i_ac(1:nbpac,jl), smv_i(:,:,jl), & |
---|
476 | jpi, jpj, npac(1:nbpac) ) |
---|
477 | DO jk = 1, nlay_i |
---|
478 | CALL tab_2d_1d( nbpac, ze_i_ac(1:nbpac,jk,jl), e_i(:,:,jk,jl) , & |
---|
479 | jpi, jpj, npac(1:nbpac) ) |
---|
480 | END DO ! jk |
---|
481 | END DO ! jl |
---|
482 | |
---|
483 | CALL tab_2d_1d( nbpac, qldif_1d (1:nbpac) , qldif , & |
---|
484 | jpi, jpj, npac(1:nbpac) ) |
---|
485 | CALL tab_2d_1d( nbpac, qcmif_1d (1:nbpac) , qcmif , & |
---|
486 | jpi, jpj, npac(1:nbpac) ) |
---|
487 | CALL tab_2d_1d( nbpac, t_bo_b (1:nbpac) , t_bo , & |
---|
488 | jpi, jpj, npac(1:nbpac) ) |
---|
489 | CALL tab_2d_1d( nbpac, fseqv_1d (1:nbpac) , fseqv , & |
---|
490 | jpi, jpj, npac(1:nbpac) ) |
---|
491 | CALL tab_2d_1d( nbpac, hicol_b (1:nbpac) , hicol , & |
---|
492 | jpi, jpj, npac(1:nbpac) ) |
---|
493 | CALL tab_2d_1d( nbpac, zvrel_ac (1:nbpac) , zvrel , & |
---|
494 | jpi, jpj, npac(1:nbpac) ) |
---|
495 | |
---|
496 | !------------------------------------------------------------------------------! |
---|
497 | ! 5) Compute thickness, salinity, enthalpy, age, area and volume of new ice |
---|
498 | !------------------------------------------------------------------------------! |
---|
499 | !---------------------- |
---|
500 | ! Thickness of new ice |
---|
501 | !---------------------- |
---|
502 | DO ji = 1, nbpac |
---|
503 | zh_newice(ji) = hiccrit(1) |
---|
504 | END DO |
---|
505 | IF ( fraz_swi .EQ. 1.0 ) zh_newice(:) = hicol_b(:) |
---|
506 | |
---|
507 | !+++++++++++++ |
---|
508 | DO ji = 1, nbpac |
---|
509 | IF (zh_newice(ji) .LE. 0.0) THEN |
---|
510 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
511 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
512 | WRITE(numout,*) ' collection thickness <= 0 ', zh_newice(ji), ji, zji, zjj |
---|
513 | ! WRITE(numout,*) ' LATITUDE ', gphit(zji,zjj), ' LONGITUDE ', & |
---|
514 | ! glamt(zji,zjj) |
---|
515 | ! WRITE(numout,*) ' zh_newice ', zh_newice(ji) |
---|
516 | ! WRITE(numout,*) ' ji ', ji |
---|
517 | ! WRITE(numout,*) ' a_i ', a_i(zji,zjj,1:jpl) |
---|
518 | ! WRITE(numout,*) ' v_i ', v_i(zji,zjj,1:jpl) |
---|
519 | ENDIF |
---|
520 | END DO |
---|
521 | !+++++++++++++ |
---|
522 | |
---|
523 | !---------------------- |
---|
524 | ! Salinity of new ice |
---|
525 | !---------------------- |
---|
526 | |
---|
527 | IF ( num_sal .EQ. 1 ) THEN |
---|
528 | zs_newice(:) = bulk_sal |
---|
529 | ENDIF ! num_sal |
---|
530 | |
---|
531 | IF ( ( num_sal .EQ. 2 ) .OR. ( num_sal .EQ. 4 ) ) THEN |
---|
532 | |
---|
533 | DO ji = 1, nbpac |
---|
534 | zs_newice(ji) = MIN( 4.606 + 0.91 / zh_newice(ji) , s_i_max ) |
---|
535 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
536 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
537 | zs_newice(ji) = MIN( 0.5*sss_io(zji,zjj) , zs_newice(ji) ) |
---|
538 | END DO ! jl |
---|
539 | |
---|
540 | ENDIF ! num_sal |
---|
541 | |
---|
542 | IF ( num_sal .EQ. 3 ) THEN |
---|
543 | zs_newice(:) = 2.3 |
---|
544 | ENDIF ! num_sal |
---|
545 | |
---|
546 | !------------------------- |
---|
547 | ! Heat content of new ice |
---|
548 | !------------------------- |
---|
549 | ! We assume that new ice is formed at the seawater freezing point |
---|
550 | DO ji = 1, nbpac |
---|
551 | ztmelts = - tmut * zs_newice(ji) + rtt ! Melting point (K) |
---|
552 | ze_newice(ji) = rhoic * ( cpic * ( ztmelts - t_bo_b(ji) ) & |
---|
553 | + lfus * ( 1.0 - ( ztmelts - rtt ) & |
---|
554 | / ( t_bo_b(ji) - rtt ) ) & |
---|
555 | - rcp * ( ztmelts-rtt ) ) |
---|
556 | !+++++++++++ |
---|
557 | IF ( ji .EQ. jiindex_1D ) THEN |
---|
558 | WRITE(numout,*) ' ze_newice : ', ze_newice(jiindex_1d) |
---|
559 | ENDIF |
---|
560 | !+++++++++++ |
---|
561 | ze_newice(ji) = MAX( ze_newice(ji) , 0.0 ) + & |
---|
562 | MAX( 0.0 , SIGN( 1.0 , - ze_newice(ji) ) ) & |
---|
563 | * rhoic * lfus |
---|
564 | !+++++++++++ |
---|
565 | IF ( ji .EQ. jiindex_1D ) THEN |
---|
566 | WRITE(numout,*) ' ze_newice : ', ze_newice(jiindex_1d) |
---|
567 | ENDIF |
---|
568 | !+++++++++++ |
---|
569 | END DO ! ji |
---|
570 | !+++++++++++ |
---|
571 | IF ( jiindex_1d .GT. 0) WRITE(numout,*) ' ze_newice : ', ze_newice(jiindex_1d) |
---|
572 | !+++++++++++ |
---|
573 | |
---|
574 | !---------------- |
---|
575 | ! Age of new ice |
---|
576 | !---------------- |
---|
577 | DO ji = 1, nbpac |
---|
578 | zo_newice(ji) = 0.0 |
---|
579 | END DO ! ji |
---|
580 | |
---|
581 | !-------------------------- |
---|
582 | ! Open water energy budget |
---|
583 | !-------------------------- |
---|
584 | DO ji = 1, nbpac |
---|
585 | zqbgow(ji) = qldif_1d(ji) - qcmif_1d(ji) !<0 |
---|
586 | END DO ! ji |
---|
587 | !+++++++++++ |
---|
588 | IF (jiindex_1d .GT. 0 ) THEN |
---|
589 | WRITE(numout,*) ' qldif : ', qldif_1d(jiindex_1d) |
---|
590 | WRITE(numout,*) ' qcmif : ', qcmif_1d(jiindex_1d) |
---|
591 | WRITE(numout,*) ' zqbgow : ', zqbgow(jiindex_1d) |
---|
592 | ENDIF |
---|
593 | !+++++++++++ |
---|
594 | |
---|
595 | !------------------- |
---|
596 | ! Volume of new ice |
---|
597 | !------------------- |
---|
598 | DO ji = 1, nbpac |
---|
599 | zv_newice(ji) = - zqbgow(ji) / ze_newice(ji) |
---|
600 | |
---|
601 | ! A fraction zfrazb of frazil ice is accreted at the ice bottom |
---|
602 | zfrazb = ( TANH ( Cfrazb * ( zvrel_ac(ji) - vfrazb ) ) & |
---|
603 | + 1.0 ) / 2.0 * maxfrazb |
---|
604 | zdh_frazb(ji) = zfrazb*zv_newice(ji) |
---|
605 | zv_newice(ji) = ( 1.0 - zfrazb ) * zv_newice(ji) |
---|
606 | END DO |
---|
607 | !+++++++++++ |
---|
608 | IF (jiindex_1d .GT. 0) THEN |
---|
609 | WRITE(numout,*) ' zv_newice : ', zv_newice(jiindex_1d) |
---|
610 | ENDIF |
---|
611 | !+++++++++++ |
---|
612 | |
---|
613 | !------------------------------------ |
---|
614 | ! Diags for energy conservation test |
---|
615 | !------------------------------------ |
---|
616 | DO ji = 1, nbpac |
---|
617 | ! Volume |
---|
618 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
619 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
620 | vt_i_init(zji,zjj) = vt_i_init(zji,zjj) + zv_newice(ji) |
---|
621 | ! Energy |
---|
622 | zde = ze_newice(ji) / unit_fac |
---|
623 | zde = zde * area(zji,zjj) * zv_newice(ji) |
---|
624 | et_i_init(zji,zjj) = et_i_init(zji,zjj) + zde |
---|
625 | END DO |
---|
626 | |
---|
627 | ! keep new ice volume in memory |
---|
628 | CALL tab_1d_2d( nbpac, v_newice , npac(1:nbpac), zv_newice(1:nbpac) , & |
---|
629 | jpi, jpj ) |
---|
630 | |
---|
631 | !----------------- |
---|
632 | ! Area of new ice |
---|
633 | !----------------- |
---|
634 | DO ji = 1, nbpac |
---|
635 | za_newice(ji) = zv_newice(ji) / zh_newice(ji) |
---|
636 | ! diagnostic |
---|
637 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
638 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
639 | diag_lat_gr(zji,zjj) = zv_newice(ji) / rdt_ice |
---|
640 | END DO !ji |
---|
641 | |
---|
642 | !------------------------------------------------------------------------------! |
---|
643 | ! 6) Redistribute new ice area and volume into ice categories ! |
---|
644 | !------------------------------------------------------------------------------! |
---|
645 | |
---|
646 | !----------------------------------------- |
---|
647 | ! Keep old ice areas and volume in memory |
---|
648 | !----------------------------------------- |
---|
649 | zv_old(:,:) = zv_i_ac(:,:) |
---|
650 | za_old(:,:) = za_i_ac(:,:) |
---|
651 | |
---|
652 | !------------------------------------------- |
---|
653 | ! Compute excessive new ice area and volume |
---|
654 | !------------------------------------------- |
---|
655 | ! If lateral ice growth gives an ice concentration gt 1, then |
---|
656 | ! we keep the excessive volume in memory and attribute it later |
---|
657 | ! to bottom accretion |
---|
658 | DO ji = 1, nbpac |
---|
659 | ! vectorize |
---|
660 | IF ( za_newice(ji) .GT. ( 1.0 - zat_i_ac(ji) ) ) THEN |
---|
661 | zda_res(ji) = za_newice(ji) - (1.0 - zat_i_ac(ji) ) |
---|
662 | zdv_res(ji) = zda_res(ji) * zh_newice(ji) |
---|
663 | za_newice(ji) = za_newice(ji) - zda_res(ji) |
---|
664 | zv_newice(ji) = zv_newice(ji) - zdv_res(ji) |
---|
665 | IF ( ji .EQ. jiindex_1D ) THEN |
---|
666 | WRITE(numout,*) ' zv_newice : ', zv_newice(ji) |
---|
667 | WRITE(numout,*) ' zdv_res : ', zdv_res (ji) |
---|
668 | ENDIF |
---|
669 | ELSE |
---|
670 | zda_res(ji) = 0.0 |
---|
671 | zdv_res(ji) = 0.0 |
---|
672 | ENDIF |
---|
673 | END DO ! ji |
---|
674 | |
---|
675 | !------------------------------------------------ |
---|
676 | ! Laterally redistribute new ice volume and area |
---|
677 | !------------------------------------------------ |
---|
678 | zat_i_ac(:) = 0.0 |
---|
679 | |
---|
680 | WRITE(numout,*) ' zv_i_ac : ', zv_i_ac(jiindex, 1:jpl) |
---|
681 | DO jl = 1, jpl |
---|
682 | DO ji = 1, nbpac |
---|
683 | ! vectorize |
---|
684 | IF ( ( hi_max(jl-1) .LT. zh_newice(ji) ) & |
---|
685 | .AND. ( zh_newice(ji) .LE. hi_max(jl) ) ) THEN |
---|
686 | za_i_ac(ji,jl) = za_i_ac(ji,jl) + za_newice(ji) |
---|
687 | zv_i_ac(ji,jl) = zv_i_ac(ji,jl) + zv_newice(ji) |
---|
688 | zat_i_ac(ji) = zat_i_ac(ji) + za_i_ac(ji,jl) |
---|
689 | zcatac(ji) = jl |
---|
690 | ENDIF |
---|
691 | END DO ! ji |
---|
692 | END DO ! jl |
---|
693 | WRITE(numout,*) ' zv_i_ac : ', zv_i_ac(jiindex, 1:jpl) |
---|
694 | |
---|
695 | ! !++++++++++++++++ |
---|
696 | DO ji = 1, nbpac |
---|
697 | ! !+++++ |
---|
698 | IF (zat_i_ac(ji).gt.1.0) THEN |
---|
699 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
700 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
701 | WRITE(numout,*) ' *** ERROR MESSAGE *** ' |
---|
702 | WRITE(numout,*) ' something MUST be wrong ' |
---|
703 | WRITE(numout,*) ' at_i : ', zat_i_ac(ji) |
---|
704 | WRITE(numout,*) ' is wrong ' |
---|
705 | WRITE(numout,*) ' point : ', zji, zjj |
---|
706 | ENDIF |
---|
707 | END DO ! ji |
---|
708 | !++++++++++++++++ |
---|
709 | |
---|
710 | !---------------------------------- |
---|
711 | ! Heat content - lateral accretion |
---|
712 | !---------------------------------- |
---|
713 | DO ji = 1, nbpac |
---|
714 | jl = zcatac(ji) ! categroy in which new ice is put |
---|
715 | ! zindb = 0 if no ice and 1 if yes |
---|
716 | zindb = 1.0 - MAX ( 0.0 , SIGN ( 1.0 , -za_old(ji,jl) ) ) |
---|
717 | ! old ice thickness |
---|
718 | zhice_old(ji,jl) = zv_old(ji,jl) & |
---|
719 | / MAX ( za_old(ji,jl) , zeps ) * zindb |
---|
720 | ! difference in thickness |
---|
721 | zdhex(ji) = MAX( 0.0, zh_newice(ji) - zhice_old(ji,jl) ) |
---|
722 | ! is ice totally new in category jl ? |
---|
723 | zswinew(ji) = MAX( 0.0, SIGN( 1.0 , - za_old(ji,jl) + epsi11 ) ) |
---|
724 | END DO |
---|
725 | |
---|
726 | DO jk = 1, nlay_i |
---|
727 | DO ji = 1, nbpac |
---|
728 | jl = zcatac(ji) |
---|
729 | zqold = ze_i_ac(ji,jk,jl) ! [ J.m-3 ] |
---|
730 | zalphai = MIN( zhice_old(ji,jl) * jk / nlay_i , & |
---|
731 | zh_newice(ji) ) & |
---|
732 | - MIN( zhice_old(ji,jl) * ( jk - 1 ) & |
---|
733 | / nlay_i , zh_newice(ji) ) |
---|
734 | ze_i_ac(ji,jk,jl) = & |
---|
735 | zswinew(ji) * ze_newice(ji) & |
---|
736 | + ( 1.0 - zswinew(ji) ) * & |
---|
737 | ( za_old(ji,jl) * zqold * zhice_old(ji,jl) / nlay_i & |
---|
738 | + za_newice(ji) * ze_newice(ji) * zalphai & |
---|
739 | + za_newice(ji) * ze_newice(ji) * zdhex(ji) / nlay_i ) / & |
---|
740 | ( ( zv_i_ac(ji,jl) ) / nlay_i ) |
---|
741 | |
---|
742 | END DO !ji |
---|
743 | END DO !jl |
---|
744 | |
---|
745 | !----------------------------------------------- |
---|
746 | ! Add excessive volume of new ice at the bottom |
---|
747 | !----------------------------------------------- |
---|
748 | ! If the ice concentration exceeds 1, the remaining volume of new ice |
---|
749 | ! is equally redistributed among all ice categories in which there is |
---|
750 | ! ice |
---|
751 | |
---|
752 | ! Fraction of level ice |
---|
753 | jm = 1 |
---|
754 | zat_i_lev(:) = 0.0 |
---|
755 | |
---|
756 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
757 | DO ji = 1, nbpac |
---|
758 | zat_i_lev(ji) = zat_i_lev(ji) + za_i_ac(ji,jl) |
---|
759 | END DO |
---|
760 | END DO |
---|
761 | |
---|
762 | WRITE(numout,*) ' zv_i_ac : ', zv_i_ac(jiindex, 1:jpl) |
---|
763 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
764 | DO ji = 1, nbpac |
---|
765 | zindb = MAX( 0.0, SIGN( 1.0, zdv_res(ji) ) ) |
---|
766 | zv_i_ac(ji,jl) = zv_i_ac(ji,jl) + & |
---|
767 | zindb * zdv_res(ji) * za_i_ac(ji,jl) / & |
---|
768 | MAX( zat_i_lev(ji) , epsi06 ) |
---|
769 | END DO ! ji |
---|
770 | END DO ! jl |
---|
771 | WRITE(numout,*) ' zv_i_ac : ', zv_i_ac(jiindex, 1:jpl) |
---|
772 | |
---|
773 | !--------------------------------- |
---|
774 | ! Heat content - bottom accretion |
---|
775 | !--------------------------------- |
---|
776 | jm = 1 |
---|
777 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
778 | DO ji = 1, nbpac |
---|
779 | ! zindb = 0 if no ice and 1 if yes |
---|
780 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 & |
---|
781 | , - za_i_ac(ji,jl ) ) ) |
---|
782 | zhice_old(ji,jl) = zv_i_ac(ji,jl) / & |
---|
783 | MAX( za_i_ac(ji,jl) , zeps ) * zindb |
---|
784 | zdhicbot(ji,jl) = zdv_res(ji) / MAX( za_i_ac(ji,jl) , zeps ) & |
---|
785 | * zindb & |
---|
786 | + zindb * zdh_frazb(ji) ! frazil ice |
---|
787 | ! may coalesce |
---|
788 | ! thickness of residual ice |
---|
789 | zdummy(ji,jl) = zv_i_ac(ji,jl)/MAX(za_i_ac(ji,jl),zeps)*zindb |
---|
790 | END DO !ji |
---|
791 | END DO !jl |
---|
792 | |
---|
793 | ! old layers thicknesses and enthalpies |
---|
794 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
795 | DO jk = 1, nlay_i |
---|
796 | DO ji = 1, nbpac |
---|
797 | zthick0(ji,jk,jl)= zhice_old(ji,jl) / nlay_i |
---|
798 | zqm0 (ji,jk,jl)= ze_i_ac(ji,jk,jl) * zthick0(ji,jk,jl) |
---|
799 | END DO !ji |
---|
800 | END DO !jk |
---|
801 | END DO !jl |
---|
802 | |
---|
803 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
804 | DO ji = 1, nbpac |
---|
805 | zthick0(ji,nlay_i+1,jl) = zdhicbot(ji,jl) |
---|
806 | zqm0 (ji,nlay_i+1,jl) = ze_newice(ji)*zdhicbot(ji,jl) |
---|
807 | END DO ! ji |
---|
808 | END DO ! jl |
---|
809 | |
---|
810 | ! Redistributing energy on the new grid |
---|
811 | ze_i_ac(:,:,:) = 0.0 |
---|
812 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
813 | DO jk = 1, nlay_i |
---|
814 | DO layer = 1, nlay_i + 1 |
---|
815 | DO ji = 1, nbpac |
---|
816 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 , & |
---|
817 | - za_i_ac(ji,jl ) ) ) |
---|
818 | ! Redistributing energy on the new grid |
---|
819 | zweight = MAX ( & |
---|
820 | MIN( zhice_old(ji,jl) * layer , zdummy(ji,jl) * jk ) - & |
---|
821 | MAX( zhice_old(ji,jl) * ( layer - 1 ) , zdummy(ji,jl) * & |
---|
822 | ( jk - 1 ) ) , 0.0 ) & |
---|
823 | / ( MAX(nlay_i * zthick0(ji,layer,jl),zeps) ) * zindb |
---|
824 | ze_i_ac(ji,jk,jl) = ze_i_ac(ji,jk,jl) + & |
---|
825 | zweight * zqm0(ji,layer,jl) |
---|
826 | END DO ! ji |
---|
827 | END DO ! layer |
---|
828 | END DO ! jk |
---|
829 | END DO ! jl |
---|
830 | |
---|
831 | DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
---|
832 | DO jk = 1, nlay_i |
---|
833 | DO ji = 1, nbpac |
---|
834 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 & |
---|
835 | , - zv_i_ac(ji,jl) ) ) !0 if no ice |
---|
836 | ze_i_ac(ji,jk,jl) = ze_i_ac(ji,jk,jl) / & |
---|
837 | MAX( zv_i_ac(ji,jl) , zeps) & |
---|
838 | * za_i_ac(ji,jl) * nlay_i * zindb |
---|
839 | END DO |
---|
840 | END DO |
---|
841 | END DO |
---|
842 | |
---|
843 | !------------ |
---|
844 | ! Update age |
---|
845 | !------------ |
---|
846 | DO jl = 1, jpl |
---|
847 | DO ji = 1, nbpac |
---|
848 | !--ice age |
---|
849 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 , - & |
---|
850 | za_i_ac(ji,jl) ) ) ! 0 if no ice and 1 if yes |
---|
851 | !zo_i_ac(ji,jl) = zv_old(ji,jl) * zo_i_ac(ji,jl) / & |
---|
852 | !MAX(zv_i_ac(ji,jl),zeps) * zindb |
---|
853 | zoa_i_ac(ji,jl) = za_old(ji,jl) * zoa_i_ac(ji,jl) / & |
---|
854 | MAX( za_i_ac(ji,jl) , zeps ) * zindb |
---|
855 | END DO ! ji |
---|
856 | END DO ! jl |
---|
857 | |
---|
858 | !----------------- |
---|
859 | ! Update salinity |
---|
860 | !----------------- |
---|
861 | IF ( ( num_sal .EQ. 2 ) .OR. ( num_sal .EQ. 4 ) ) THEN |
---|
862 | |
---|
863 | DO jl = 1, jpl |
---|
864 | DO ji = 1, nbpac |
---|
865 | !zindb = 0 if no ice and 1 if yes |
---|
866 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 , - & |
---|
867 | zv_i_ac(ji,jl) ) ) ! 0 if no ice and 1 if yes |
---|
868 | zdv = zv_i_ac(ji,jl) - zv_old(ji,jl) |
---|
869 | zsmv_i_ac(ji,jl) = ( zsmv_i_ac(ji,jl) + zdv * zs_newice(ji) ) * & |
---|
870 | zindb |
---|
871 | END DO ! ji |
---|
872 | END DO ! jl |
---|
873 | |
---|
874 | ENDIF ! num_sal |
---|
875 | |
---|
876 | !--------------------------------- |
---|
877 | ! Salt flux due to new ice growth |
---|
878 | !--------------------------------- |
---|
879 | IF ( ( num_sal .EQ. 4 ) ) THEN |
---|
880 | DO ji = 1, nbpac |
---|
881 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
882 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
883 | fseqv_1d(ji) = fseqv_1d(ji) + & |
---|
884 | ( sss_io(zji,zjj) - bulk_sal ) * rhoic * & |
---|
885 | zv_newice(ji) / rdt_ice |
---|
886 | END DO |
---|
887 | ELSE |
---|
888 | DO ji = 1, nbpac |
---|
889 | zji = MOD( npac(ji) - 1, jpi ) + 1 |
---|
890 | zjj = ( npac(ji) - 1 ) / jpi + 1 |
---|
891 | fseqv_1d(ji) = fseqv_1d(ji) + & |
---|
892 | ( sss_io(zji,zjj) - zs_newice(ji) ) * rhoic * & |
---|
893 | zv_newice(ji) / rdt_ice |
---|
894 | END DO ! ji |
---|
895 | ENDIF |
---|
896 | |
---|
897 | !------------------------------------------------------------------------------! |
---|
898 | ! 8) Change 2D vectors to 1D vectors |
---|
899 | !------------------------------------------------------------------------------! |
---|
900 | |
---|
901 | DO jl = 1, jpl |
---|
902 | CALL tab_1d_2d( nbpac, a_i(:,:,jl) , npac(1:nbpac) , & |
---|
903 | za_i_ac(1:nbpac,jl) , jpi, jpj ) |
---|
904 | CALL tab_1d_2d( nbpac, v_i(:,:,jl) , npac(1:nbpac) , & |
---|
905 | zv_i_ac(1:nbpac,jl) , jpi, jpj ) |
---|
906 | CALL tab_1d_2d( nbpac, oa_i(:,:,jl), npac(1:nbpac) , & |
---|
907 | zoa_i_ac(1:nbpac,jl), jpi, jpj ) |
---|
908 | IF ( ( num_sal .EQ. 2 ) .OR. ( num_sal .EQ. 4 ) ) & |
---|
909 | CALL tab_1d_2d( nbpac, smv_i(:,:,jl) , npac(1:nbpac) , & |
---|
910 | zsmv_i_ac(1:nbpac,jl) , jpi, jpj ) |
---|
911 | DO jk = 1, nlay_i |
---|
912 | CALL tab_1d_2d( nbpac, e_i(:,:,jk,jl) , npac(1:nbpac), & |
---|
913 | ze_i_ac(1:nbpac,jk,jl), jpi, jpj ) |
---|
914 | END DO ! jk |
---|
915 | END DO !jl |
---|
916 | CALL tab_1d_2d( nbpac, fseqv , npac(1:nbpac), fseqv_1d (1:nbpac) , & |
---|
917 | jpi, jpj ) |
---|
918 | |
---|
919 | ENDIF ! nbpac > 0 |
---|
920 | |
---|
921 | !------------------------------------------------------------------------------! |
---|
922 | ! 9) Change units for e_i |
---|
923 | !------------------------------------------------------------------------------! |
---|
924 | |
---|
925 | DO jl = 1, jpl |
---|
926 | DO jk = 1, nlay_i |
---|
927 | DO jj = 1, jpj |
---|
928 | DO ji = 1, jpi |
---|
929 | ! Correct dimensions to avoid big values |
---|
930 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) / unit_fac |
---|
931 | |
---|
932 | ! Mutliply by ice volume, and divide by number |
---|
933 | ! of layers to get heat content in 10^9 Joules |
---|
934 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * & |
---|
935 | area(ji,jj) * v_i(ji,jj,jl) / & |
---|
936 | nlay_i |
---|
937 | END DO |
---|
938 | END DO |
---|
939 | END DO |
---|
940 | END DO |
---|
941 | |
---|
942 | !++++ |
---|
943 | WRITE(numout,*) 'lim_thd_lac : Salt flux diagnostic ' |
---|
944 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
945 | WRITE(numout,*) ' *** Salt fluxes at bottom interface ***' |
---|
946 | WRITE(numout,*) ' fseqv : ', fseqv(jiindex,jjindex) |
---|
947 | WRITE(numout,*) |
---|
948 | !++++ |
---|
949 | |
---|
950 | !------------------------------------------------------------------------------| |
---|
951 | ! 10) Conservation check and changes in each ice category |
---|
952 | !------------------------------------------------------------------------------| |
---|
953 | |
---|
954 | CALL lim_column_sum (jpl, v_i, vt_i_final) |
---|
955 | fieldid = 'v_i, limthd_lac' |
---|
956 | CALL lim_cons_check (vt_i_init, vt_i_final, 1.0e-6, fieldid) |
---|
957 | |
---|
958 | CALL lim_column_sum_energy(jpl, nlay_i, e_i, et_i_final) |
---|
959 | fieldid = 'e_i, limthd_lac' |
---|
960 | CALL lim_cons_check (et_i_final, et_i_final, 1.0e-3, fieldid) |
---|
961 | |
---|
962 | CALL lim_column_sum (jpl, v_s, vt_s_final) |
---|
963 | fieldid = 'v_s, limthd_lac' |
---|
964 | CALL lim_cons_check (vt_s_init, vt_s_final, 1.0e-6, fieldid) |
---|
965 | |
---|
966 | ! CALL lim_column_sum (jpl, e_s(:,:,1,:) , et_s_init) |
---|
967 | ! fieldid = 'e_s, limthd_lac' |
---|
968 | ! CALL lim_cons_check (et_s_init, et_s_final, 1.0e-3, fieldid) |
---|
969 | |
---|
970 | WRITE(numout,*) ' vt_i_init : ', vt_i_init(jiindex,jjindex) |
---|
971 | WRITE(numout,*) ' vt_i_final: ', vt_i_final(jiindex,jjindex) |
---|
972 | WRITE(numout,*) ' et_i_init : ', et_i_init(jiindex,jjindex) |
---|
973 | WRITE(numout,*) ' et_i_final: ', et_i_final(jiindex,jjindex) |
---|
974 | |
---|
975 | END SUBROUTINE lim_thd_lac |
---|
976 | |
---|
977 | #else |
---|
978 | !!====================================================================== |
---|
979 | !! *** MODULE limthd_lac *** |
---|
980 | !! no sea ice model |
---|
981 | !!====================================================================== |
---|
982 | CONTAINS |
---|
983 | SUBROUTINE lim_thd_lac ! Empty routine |
---|
984 | END SUBROUTINE lim_thd_lac |
---|
985 | #endif |
---|
986 | END MODULE limthd_lac |
---|