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 | !!---------------------------------------------------------------------- |
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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_istate : Initialisation of diagnostics ice variables |
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14 | !! lim_istate_init : initialization of ice state and namelist read |
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15 | !!---------------------------------------------------------------------- |
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16 | USE phycst ! physical constant |
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17 | USE oce ! dynamics and tracers variables |
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18 | USE dom_oce ! ocean domain |
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19 | USE sbc_oce ! Surface boundary condition: ocean fields |
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20 | USE eosbn2 ! equation of state |
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21 | USE ice ! sea-ice variables |
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22 | USE par_ice ! ice parameters |
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23 | USE dom_ice ! sea-ice domain |
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24 | USE in_out_manager ! I/O manager |
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25 | USE lbclnk ! lateral boundary condition - MPP exchanges |
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26 | USE lib_mpp ! MPP library |
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27 | |
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28 | IMPLICIT NONE |
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29 | PRIVATE |
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30 | |
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31 | PUBLIC lim_istate ! routine called by lim_init.F90 |
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32 | |
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33 | ! !!** init namelist (namiceini) ** |
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34 | REAL(wp) :: ttest = 2.0_wp ! threshold water temperature for initial sea ice |
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35 | REAL(wp) :: hninn = 0.5_wp ! initial snow thickness in the north |
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36 | REAL(wp) :: hginn_u = 2.5_wp ! initial ice thickness in the north |
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37 | REAL(wp) :: aginn_u = 0.7_wp ! initial leads area in the north |
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38 | REAL(wp) :: hginn_d = 5.0_wp ! initial ice thickness in the north |
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39 | REAL(wp) :: aginn_d = 0.25_wp ! initial leads area in the north |
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40 | REAL(wp) :: hnins = 0.1_wp ! initial snow thickness in the south |
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41 | REAL(wp) :: hgins_u = 1.0_wp ! initial ice thickness in the south |
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42 | REAL(wp) :: agins_u = 0.7_wp ! initial leads area in the south |
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43 | REAL(wp) :: hgins_d = 2.0_wp ! initial ice thickness in the south |
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44 | REAL(wp) :: agins_d = 0.2_wp ! initial leads area in the south |
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45 | REAL(wp) :: sinn = 6.301_wp ! initial salinity |
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46 | REAL(wp) :: sins = 6.301_wp ! |
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47 | |
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48 | !!---------------------------------------------------------------------- |
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49 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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50 | !! $Id$ |
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51 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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52 | !!---------------------------------------------------------------------- |
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53 | CONTAINS |
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54 | |
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55 | SUBROUTINE lim_istate |
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56 | !!------------------------------------------------------------------- |
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57 | !! *** ROUTINE lim_istate *** |
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58 | !! |
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59 | !! ** Purpose : defined the sea-ice initial state |
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60 | !! |
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61 | !! ** Method : restart from a state defined in a binary file |
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62 | !! or from arbitrary sea-ice conditions |
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63 | !!------------------------------------------------------------------- |
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64 | USE wrk_nemo, ONLY: wrk_in_use, wrk_not_released |
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65 | USE wrk_nemo, ONLY: wrk_1d_1, wrk_1d_2, wrk_1d_3, wrk_1d_4 |
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66 | USE wrk_nemo, ONLY: zidto => wrk_2d_1 ! ice indicator |
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67 | ! |
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68 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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69 | REAL(wp) :: zeps6, zeps, ztmelts, epsi06 ! local scalars |
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70 | REAL(wp) :: zvol, zare, zh, zh1, zh2, zh3, zan, zbn, zas, zbs |
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71 | REAL(wp), POINTER, DIMENSION(:) :: zgfactorn, zhin |
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72 | REAL(wp), POINTER, DIMENSION(:) :: zgfactors, zhis |
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73 | !-------------------------------------------------------------------- |
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74 | |
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75 | IF( wrk_in_use(2, 1) .OR. wrk_in_use(1, 1,2,3,4) ) THEN |
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76 | CALL ctl_stop( 'lim_istate: requested workspace arrays unavailable' ) ; RETURN |
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77 | ENDIF |
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78 | zgfactorn => wrk_1d_1(1:jpm) ; zhin => wrk_1d_3(1:jpm) ! Set-up pointers to sub-arrays of workspaces |
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79 | zgfactors => wrk_1d_2(1:jpm) ; zhis => wrk_1d_4(1:jpm) |
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80 | |
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81 | !-------------------------------------------------------------------- |
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82 | ! 1) Preliminary things |
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83 | !-------------------------------------------------------------------- |
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84 | epsi06 = 1.e-6_wp |
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85 | |
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86 | CALL lim_istate_init ! reading the initials parameters of the ice |
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87 | |
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88 | !!gm in lim2 the initialisation if only done if required in the namelist : |
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89 | !!gm IF( .NOT. ln_limini ) THEN |
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90 | !!gm this should be added in lim3 namelist... |
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91 | |
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92 | !-------------------------------------------------------------------- |
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93 | ! 2) Ice initialization (hi,hs,frld,t_su,sm_i,t_i,t_s) | |
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94 | !-------------------------------------------------------------------- |
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95 | |
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96 | IF(lwp) WRITE(numout,*) |
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97 | IF(lwp) WRITE(numout,*) 'lim_istate : Ice initialization ' |
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98 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ' |
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99 | |
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100 | t_bo(:,:) = tfreez( sn(:,:,1) ) * tmask(:,:,1) ! freezing/melting point of sea water [Celcius] |
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101 | |
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102 | DO jj = 1, jpj ! ice if sst <= t-freez + ttest |
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103 | DO ji = 1, jpi |
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104 | IF( tn(ji,jj,1) - t_bo(ji,jj) >= ttest ) THEN ; zidto(ji,jj) = 0.e0 ! no ice |
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105 | ELSE ; zidto(ji,jj) = 1.e0 ! ice |
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106 | ENDIF |
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107 | END DO |
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108 | END DO |
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109 | |
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110 | t_bo(:,:) = t_bo(:,:) + rt0 ! t_bo converted from Celsius to Kelvin (rt0 over land) |
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111 | |
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112 | ! constants for heat contents |
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113 | zeps = 1.e-20_wp |
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114 | zeps6 = 1.e-06_wp |
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115 | |
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116 | ! zgfactor for initial ice distribution |
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117 | zgfactorn(:) = 0._wp |
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118 | zgfactors(:) = 0._wp |
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119 | |
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120 | ! first ice type |
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121 | DO jl = ice_cat_bounds(1,1), ice_cat_bounds(1,2) |
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122 | zhin (1) = ( hi_max(jl-1) + hi_max(jl) ) * 0.5_wp |
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123 | zgfactorn(1) = zgfactorn(1) + exp(-(zhin(1)-hginn_u)*(zhin(1)-hginn_u) * 0.5_wp ) |
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124 | zhis (1) = ( hi_max(jl-1) + hi_max(jl) ) * 0.5_wp |
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125 | zgfactors(1) = zgfactors(1) + exp(-(zhis(1)-hgins_u)*(zhis(1)-hgins_u) * 0.5_wp ) |
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126 | END DO ! jl |
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127 | zgfactorn(1) = aginn_u / zgfactorn(1) |
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128 | zgfactors(1) = agins_u / zgfactors(1) |
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129 | |
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130 | ! ------------- |
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131 | ! new distribution, polynom of second order, conserving area and volume |
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132 | zh1 = 0._wp |
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133 | zh2 = 0._wp |
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134 | zh3 = 0._wp |
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135 | DO jl = 1, jpl |
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136 | zh = ( hi_max(jl-1) + hi_max(jl) ) * 0.5_wp |
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137 | zh1 = zh1 + zh |
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138 | zh2 = zh2 + zh * zh |
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139 | zh3 = zh3 + zh * zh * zh |
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140 | END DO |
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141 | IF(lwp) WRITE(numout,*) ' zh1 : ', zh1 |
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142 | IF(lwp) WRITE(numout,*) ' zh2 : ', zh2 |
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143 | IF(lwp) WRITE(numout,*) ' zh3 : ', zh3 |
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144 | |
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145 | zvol = aginn_u * hginn_u |
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146 | zare = aginn_u |
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147 | IF( jpl >= 2 ) THEN |
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148 | zbn = ( zvol*zh2 - zare*zh3 ) / ( zh2*zh2 - zh1*zh3) |
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149 | zan = ( zare - zbn*zh1 ) / zh2 |
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150 | ENDIF |
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151 | |
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152 | IF(lwp) WRITE(numout,*) ' zvol: ', zvol |
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153 | IF(lwp) WRITE(numout,*) ' zare: ', zare |
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154 | IF(lwp) WRITE(numout,*) ' zbn : ', zbn |
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155 | IF(lwp) WRITE(numout,*) ' zan : ', zan |
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156 | |
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157 | zvol = agins_u * hgins_u |
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158 | zare = agins_u |
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159 | IF( jpl >= 2 ) THEN |
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160 | zbs = ( zvol*zh2 - zare*zh3 ) / ( zh2*zh2 - zh1*zh3) |
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161 | zas = ( zare - zbs*zh1 ) / zh2 |
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162 | ENDIF |
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163 | |
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164 | IF(lwp) WRITE(numout,*) ' zvol: ', zvol |
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165 | IF(lwp) WRITE(numout,*) ' zare: ', zare |
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166 | IF(lwp) WRITE(numout,*) ' zbn : ', zbn |
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167 | IF(lwp) WRITE(numout,*) ' zan : ', zan |
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168 | |
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169 | !end of new lines |
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170 | ! ------------- |
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171 | !!! |
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172 | ! retour a LIMA_MEC |
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173 | ! ! second ice type |
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174 | ! zdummy = hi_max(ice_cat_bounds(2,1)-1) |
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175 | ! hi_max(ice_cat_bounds(2,1)-1) = 0.0 |
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176 | |
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177 | ! ! here to change !!!! |
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178 | ! jm = 2 |
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179 | ! DO jl = ice_cat_bounds(jm,1), ice_cat_bounds(jm,2) |
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180 | ! zhin (2) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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181 | ! zhin (2) = ( hi_max_typ(jl-ice_cat_bounds(2,1),jm ) + & |
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182 | ! hi_max_typ(jl-ice_cat_bounds(2,1) + 1,jm) ) / 2.0 |
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183 | ! zgfactorn(2) = zgfactorn(2) + exp(-(zhin(2)-hginn_d)*(zhin(2)-hginn_d)/2.0) |
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184 | ! zhis (2) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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185 | ! zhis (2) = ( hi_max_typ(jl-ice_cat_bounds(2,1),jm ) + & |
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186 | ! hi_max_typ(jl-ice_cat_bounds(2,1) + 1,jm) ) / 2.0 |
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187 | ! zgfactors(2) = zgfactors(2) + exp(-(zhis(2)-hgins_d)*(zhis(2)-hgins_d)/2.0) |
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188 | ! END DO ! jl |
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189 | ! zgfactorn(2) = aginn_d / zgfactorn(2) |
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190 | ! zgfactors(2) = agins_d / zgfactors(2) |
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191 | ! hi_max(ice_cat_bounds(2,1)-1) = zdummy |
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192 | ! END retour a LIMA_MEC |
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193 | !!! |
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194 | |
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195 | !!gm optimisation : loop over the ice categories inside the ji, jj loop !!! |
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196 | |
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197 | DO jj = 1, jpj |
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198 | DO ji = 1, jpi |
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199 | |
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200 | !--- Northern hemisphere |
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201 | !---------------------------------------------------------------- |
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202 | IF( fcor(ji,jj) >= 0._wp ) THEN |
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203 | |
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204 | !----------------------- |
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205 | ! Ice area / thickness |
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206 | !----------------------- |
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207 | |
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208 | IF ( jpl .EQ. 1) THEN ! one category |
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209 | |
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210 | DO jl = ice_cat_bounds(1,1), ice_cat_bounds(1,2) ! loop over ice thickness categories |
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211 | a_i(ji,jj,jl) = zidto(ji,jj) * aginn_u |
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212 | ht_i(ji,jj,jl) = zidto(ji,jj) * hginn_u |
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213 | v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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214 | END DO |
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215 | |
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216 | ELSE ! several categories |
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217 | |
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218 | DO jl = ice_cat_bounds(1,1), ice_cat_bounds(1,2) ! loop over ice thickness categories |
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219 | zhin(1) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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220 | a_i(ji,jj,jl) = zidto(ji,jj) * MAX( zgfactorn(1) * exp(-(zhin(1)-hginn_u)* & |
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221 | (zhin(1)-hginn_u)/2.0) , epsi06) |
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222 | ! new line |
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223 | a_i(ji,jj,jl) = zidto(ji,jj) * ( zan * zhin(1) * zhin(1) + zbn * zhin(1) ) |
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224 | ht_i(ji,jj,jl) = zidto(ji,jj) * zhin(1) |
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225 | v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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226 | END DO |
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227 | |
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228 | ENDIF |
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229 | |
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230 | |
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231 | !!! |
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232 | ! retour a LIMA_MEC |
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233 | ! !ridged ice |
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234 | ! zdummy = hi_max(ice_cat_bounds(2,1)-1) |
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235 | ! hi_max(ice_cat_bounds(2,1)-1) = 0.0 |
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236 | ! DO jl = ice_cat_bounds(2,1), ice_cat_bounds(2,2) ! loop over ice thickness categories |
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237 | ! zhin(2) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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238 | ! a_i(ji,jj,jl) = zidto(ji,jj) * MAX( zgfactorn(2) * exp(-(zhin(2)-hginn_d)* & |
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239 | ! (zhin(2)-hginn_d)/2.0) , epsi06) |
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240 | ! ht_i(ji,jj,jl) = zidto(ji,jj) * zhin(2) |
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241 | ! v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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242 | ! END DO |
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243 | ! hi_max(ice_cat_bounds(2,1)-1) = zdummy |
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244 | |
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245 | ! !rafted ice |
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246 | ! jl = 6 |
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247 | ! a_i(ji,jj,jl) = 0.0 |
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248 | ! ht_i(ji,jj,jl) = 0.0 |
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249 | ! v_i(ji,jj,jl) = 0.0 |
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250 | ! END retour a LIMA_MEC |
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251 | !!! |
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252 | |
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253 | DO jl = 1, jpl |
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254 | |
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255 | !------------- |
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256 | ! Snow depth |
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257 | !------------- |
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258 | ht_s(ji,jj,jl) = zidto(ji,jj) * hninn |
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259 | v_s(ji,jj,jl) = ht_s(ji,jj,jl)*a_i(ji,jj,jl) |
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260 | |
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261 | !--------------- |
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262 | ! Ice salinity |
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263 | !--------------- |
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264 | sm_i(ji,jj,jl) = zidto(ji,jj) * sinn + ( 1.0 - zidto(ji,jj) ) * 0.1 |
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265 | smv_i(ji,jj,jl) = MIN( sm_i(ji,jj,jl) , sss_m(ji,jj) ) * v_i(ji,jj,jl) |
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266 | |
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267 | !---------- |
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268 | ! Ice age |
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269 | !---------- |
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270 | o_i(ji,jj,jl) = zidto(ji,jj) * 1.0 + ( 1.0 - zidto(ji,jj) ) |
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271 | oa_i(ji,jj,jl) = o_i(ji,jj,jl) * a_i(ji,jj,jl) |
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272 | |
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273 | !------------------------------ |
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274 | ! Sea ice surface temperature |
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275 | !------------------------------ |
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276 | |
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277 | t_su(ji,jj,jl) = zidto(ji,jj) * 270.0 + ( 1.0 - zidto(ji,jj) ) * t_bo(ji,jj) |
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278 | |
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279 | !------------------------------------ |
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280 | ! Snow temperature and heat content |
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281 | !------------------------------------ |
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282 | |
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283 | DO jk = 1, nlay_s |
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284 | t_s(ji,jj,jk,jl) = zidto(ji,jj) * 270.00 + ( 1.0 - zidto(ji,jj) ) * rtt |
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285 | ! Snow energy of melting |
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286 | e_s(ji,jj,jk,jl) = zidto(ji,jj) * rhosn * ( cpic * ( rtt - t_s(ji,jj,jk,jl) ) + lfus ) |
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287 | ! Change dimensions |
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288 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) / unit_fac |
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289 | ! Multiply by volume, so that heat content in 10^9 Joules |
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290 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * area(ji,jj) * & |
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291 | v_s(ji,jj,jl) / nlay_s |
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292 | END DO !jk |
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293 | |
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294 | !----------------------------------------------- |
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295 | ! Ice salinities, temperature and heat content |
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296 | !----------------------------------------------- |
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297 | |
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298 | DO jk = 1, nlay_i |
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299 | t_i(ji,jj,jk,jl) = zidto(ji,jj)*270.00 + ( 1.0 - zidto(ji,jj) ) * rtt |
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300 | s_i(ji,jj,jk,jl) = zidto(ji,jj) * sinn + ( 1.0 - zidto(ji,jj) ) * 0.1 |
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301 | ztmelts = - tmut * s_i(ji,jj,jk,jl) + rtt !Melting temperature in K |
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302 | |
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303 | ! heat content per unit volume |
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304 | e_i(ji,jj,jk,jl) = zidto(ji,jj) * rhoic * & |
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305 | ( cpic * ( ztmelts - t_i(ji,jj,jk,jl) ) & |
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306 | + lfus * ( 1.0 - (ztmelts-rtt) / MIN((t_i(ji,jj,jk,jl)-rtt),-zeps) ) & |
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307 | - rcp * ( ztmelts - rtt ) & |
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308 | ) |
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309 | |
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310 | ! Correct dimensions to avoid big values |
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311 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) / unit_fac |
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312 | |
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313 | ! Mutliply by ice volume, and divide by number of layers to get heat content in 10^9 J |
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314 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * & |
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315 | area(ji,jj) * a_i(ji,jj,jl) * ht_i(ji,jj,jl) / & |
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316 | nlay_i |
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317 | END DO ! jk |
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318 | |
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319 | END DO ! jl |
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320 | |
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321 | ELSE ! on fcor |
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322 | |
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323 | !--- Southern hemisphere |
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324 | !---------------------------------------------------------------- |
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325 | |
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326 | !----------------------- |
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327 | ! Ice area / thickness |
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328 | !----------------------- |
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329 | |
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330 | IF ( jpl .EQ. 1) THEN ! one category |
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331 | |
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332 | DO jl = ice_cat_bounds(1,1), ice_cat_bounds(1,2) ! loop over ice thickness categories |
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333 | a_i(ji,jj,jl) = zidto(ji,jj) * agins_u |
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334 | ht_i(ji,jj,jl) = zidto(ji,jj) * hgins_u |
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335 | v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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336 | END DO |
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337 | |
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338 | ELSE ! several categories |
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339 | |
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340 | !level ice |
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341 | DO jl = ice_cat_bounds(1,1), ice_cat_bounds(1,2) !over thickness categories |
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342 | |
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343 | zhis(1) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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344 | a_i(ji,jj,jl) = zidto(ji,jj) * MAX( zgfactors(1) * exp(-(zhis(1)-hgins_u) * & |
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345 | (zhis(1)-hgins_u)/2.0) , epsi06 ) |
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346 | ! new line square distribution volume conserving |
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347 | a_i(ji,jj,jl) = zidto(ji,jj) * ( zas * zhis(1) * zhis(1) + zbs * zhis(1) ) |
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348 | ht_i(ji,jj,jl) = zidto(ji,jj) * zhis(1) |
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349 | v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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350 | |
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351 | END DO ! jl |
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352 | |
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353 | ENDIF |
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354 | |
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355 | !!! |
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356 | ! retour a LIMA_MEC |
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357 | ! !ridged ice |
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358 | ! zdummy = hi_max(ice_cat_bounds(2,1)-1) |
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359 | ! hi_max(ice_cat_bounds(2,1)-1) = 0.0 |
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360 | ! DO jl = ice_cat_bounds(2,1), ice_cat_bounds(2,2) !over thickness categories |
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361 | ! zhis(2) = ( hi_max(jl-1) + hi_max(jl) ) / 2.0 |
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362 | ! a_i(ji,jj,jl) = zidto(ji,jj)*MAX( zgfactors(2) & |
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363 | ! & * exp(-(zhis(2)-hgins_d)*(zhis(2)-hgins_d)/2.0), epsi06 ) |
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364 | ! ht_i(ji,jj,jl) = zidto(ji,jj) * zhis(2) |
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365 | ! v_i(ji,jj,jl) = ht_i(ji,jj,jl)*a_i(ji,jj,jl) |
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366 | ! END DO |
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367 | ! hi_max(ice_cat_bounds(2,1)-1) = zdummy |
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368 | |
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369 | ! !rafted ice |
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370 | ! jl = 6 |
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371 | ! a_i(ji,jj,jl) = 0.0 |
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372 | ! ht_i(ji,jj,jl) = 0.0 |
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373 | ! v_i(ji,jj,jl) = 0.0 |
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374 | ! END retour a LIMA_MEC |
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375 | !!! |
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376 | |
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377 | DO jl = 1, jpl !over thickness categories |
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378 | |
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379 | !--------------- |
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380 | ! Snow depth |
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381 | !--------------- |
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382 | |
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383 | ht_s(ji,jj,jl) = zidto(ji,jj) * hnins |
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384 | v_s(ji,jj,jl) = ht_s(ji,jj,jl)*a_i(ji,jj,jl) |
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385 | |
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386 | !--------------- |
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387 | ! Ice salinity |
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388 | !--------------- |
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389 | |
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390 | sm_i(ji,jj,jl) = zidto(ji,jj) * sins + ( 1.0 - zidto(ji,jj) ) * 0.1 |
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391 | smv_i(ji,jj,jl) = MIN( sm_i(ji,jj,jl) , sss_m(ji,jj) ) * v_i(ji,jj,jl) |
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392 | |
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393 | !---------- |
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394 | ! Ice age |
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395 | !---------- |
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396 | |
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397 | o_i(ji,jj,jl) = zidto(ji,jj) * 1.0 + ( 1.0 - zidto(ji,jj) ) |
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398 | oa_i(ji,jj,jl) = o_i(ji,jj,jl) * a_i(ji,jj,jl) |
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399 | |
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400 | !------------------------------ |
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401 | ! Sea ice surface temperature |
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402 | !------------------------------ |
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403 | |
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404 | t_su(ji,jj,jl) = zidto(ji,jj) * 270.0 + ( 1.0 - zidto(ji,jj) ) * t_bo(ji,jj) |
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405 | |
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406 | !---------------------------------- |
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407 | ! Snow temperature / heat content |
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408 | !---------------------------------- |
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409 | |
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410 | DO jk = 1, nlay_s |
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411 | t_s(ji,jj,jk,jl) = zidto(ji,jj) * 270.00 + ( 1.0 - zidto(ji,jj) ) * rtt |
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412 | ! Snow energy of melting |
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413 | e_s(ji,jj,jk,jl) = zidto(ji,jj) * rhosn * ( cpic * ( rtt - t_s(ji,jj,jk,jl) ) + lfus ) |
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414 | ! Change dimensions |
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415 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) / unit_fac |
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416 | ! Multiply by volume, so that heat content in 10^9 Joules |
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417 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * area(ji,jj) * & |
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418 | v_s(ji,jj,jl) / nlay_s |
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419 | END DO |
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420 | |
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421 | !--------------------------------------------- |
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422 | ! Ice temperature, salinity and heat content |
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423 | !--------------------------------------------- |
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424 | |
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425 | DO jk = 1, nlay_i |
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426 | t_i(ji,jj,jk,jl) = zidto(ji,jj)*270.00 + ( 1.0 - zidto(ji,jj) ) * rtt |
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427 | s_i(ji,jj,jk,jl) = zidto(ji,jj) * sins + ( 1.0 - zidto(ji,jj) ) * 0.1 |
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428 | ztmelts = - tmut * s_i(ji,jj,jk,jl) + rtt !Melting temperature in K |
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429 | |
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430 | ! heat content per unit volume |
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431 | e_i(ji,jj,jk,jl) = zidto(ji,jj) * rhoic * & |
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432 | ( cpic * ( ztmelts - t_i(ji,jj,jk,jl) ) & |
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433 | + lfus * ( 1.0 - (ztmelts-rtt) / MIN((t_i(ji,jj,jk,jl)-rtt),-zeps) ) & |
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434 | - rcp * ( ztmelts - rtt ) & |
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435 | ) |
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436 | |
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437 | ! Correct dimensions to avoid big values |
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438 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) / unit_fac |
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439 | |
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440 | ! Mutliply by ice volume, and divide by number of layers to get heat content in 10^9 J |
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441 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * & |
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442 | area(ji,jj) * a_i(ji,jj,jl) * ht_i(ji,jj,jl) / & |
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443 | nlay_i |
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444 | END DO !jk |
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445 | |
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446 | END DO ! jl |
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447 | |
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448 | ENDIF ! on fcor |
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449 | |
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450 | END DO |
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451 | END DO |
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452 | |
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453 | !-------------------------------------------------------------------- |
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454 | ! 3) Global ice variables for output diagnostics | |
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455 | !-------------------------------------------------------------------- |
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456 | |
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457 | fsbbq (:,:) = 0.e0 |
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458 | u_ice (:,:) = 0.e0 |
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459 | v_ice (:,:) = 0.e0 |
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460 | stress1_i(:,:) = 0.0 |
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461 | stress2_i(:,:) = 0.0 |
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462 | stress12_i(:,:) = 0.0 |
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463 | |
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464 | !-------------------------------------------------------------------- |
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465 | ! 4) Moments for advection |
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466 | !-------------------------------------------------------------------- |
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467 | |
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468 | sxice (:,:,:) = 0.e0 ; sxsn (:,:,:) = 0.e0 ; sxa (:,:,:) = 0.e0 |
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469 | syice (:,:,:) = 0.e0 ; sysn (:,:,:) = 0.e0 ; sya (:,:,:) = 0.e0 |
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470 | sxxice(:,:,:) = 0.e0 ; sxxsn(:,:,:) = 0.e0 ; sxxa (:,:,:) = 0.e0 |
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471 | syyice(:,:,:) = 0.e0 ; syysn(:,:,:) = 0.e0 ; syya (:,:,:) = 0.e0 |
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472 | sxyice(:,:,:) = 0.e0 ; sxysn(:,:,:) = 0.e0 ; sxya (:,:,:) = 0.e0 |
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473 | |
---|
474 | sxc0 (:,:,:) = 0.e0 ; sxe (:,:,:,:)= 0.e0 |
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475 | syc0 (:,:,:) = 0.e0 ; sye (:,:,:,:)= 0.e0 |
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476 | sxxc0 (:,:,:) = 0.e0 ; sxxe (:,:,:,:)= 0.e0 |
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477 | syyc0 (:,:,:) = 0.e0 ; syye (:,:,:,:)= 0.e0 |
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478 | sxyc0 (:,:,:) = 0.e0 ; sxye (:,:,:,:)= 0.e0 |
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479 | |
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480 | sxsal (:,:,:) = 0.e0 |
---|
481 | sysal (:,:,:) = 0.e0 |
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482 | sxxsal (:,:,:) = 0.e0 |
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483 | syysal (:,:,:) = 0.e0 |
---|
484 | sxysal (:,:,:) = 0.e0 |
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485 | |
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486 | !-------------------------------------------------------------------- |
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487 | ! 5) Lateral boundary conditions | |
---|
488 | !-------------------------------------------------------------------- |
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489 | |
---|
490 | DO jl = 1, jpl |
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491 | CALL lbc_lnk( a_i(:,:,jl) , 'T', 1. ) |
---|
492 | CALL lbc_lnk( v_i(:,:,jl) , 'T', 1. ) |
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493 | CALL lbc_lnk( v_s(:,:,jl) , 'T', 1. ) |
---|
494 | CALL lbc_lnk( smv_i(:,:,jl), 'T', 1. ) |
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495 | CALL lbc_lnk( oa_i(:,:,jl) , 'T', 1. ) |
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496 | ! |
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497 | CALL lbc_lnk( ht_i(:,:,jl) , 'T', 1. ) |
---|
498 | CALL lbc_lnk( ht_s(:,:,jl) , 'T', 1. ) |
---|
499 | CALL lbc_lnk( sm_i(:,:,jl) , 'T', 1. ) |
---|
500 | CALL lbc_lnk( o_i(:,:,jl) , 'T', 1. ) |
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501 | CALL lbc_lnk( t_su(:,:,jl) , 'T', 1. ) |
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502 | DO jk = 1, nlay_s |
---|
503 | CALL lbc_lnk(t_s(:,:,jk,jl), 'T', 1. ) |
---|
504 | CALL lbc_lnk(e_s(:,:,jk,jl), 'T', 1. ) |
---|
505 | END DO |
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506 | DO jk = 1, nlay_i |
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507 | CALL lbc_lnk(t_i(:,:,jk,jl), 'T', 1. ) |
---|
508 | CALL lbc_lnk(e_i(:,:,jk,jl), 'T', 1. ) |
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509 | END DO |
---|
510 | ! |
---|
511 | a_i(:,:,jl) = tms(:,:) * a_i(:,:,jl) |
---|
512 | END DO |
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513 | |
---|
514 | CALL lbc_lnk( at_i , 'T', 1. ) |
---|
515 | at_i(:,:) = tms(:,:) * at_i(:,:) ! put 0 over land |
---|
516 | ! |
---|
517 | CALL lbc_lnk( fsbbq , 'T', 1. ) |
---|
518 | ! |
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519 | IF( wrk_not_released(2, 1) .OR. wrk_not_released(1, 1,2,3,4) ) & |
---|
520 | & CALL ctl_stop('lim_istate : failed to release workspace arrays') |
---|
521 | ! |
---|
522 | END SUBROUTINE lim_istate |
---|
523 | |
---|
524 | |
---|
525 | SUBROUTINE lim_istate_init |
---|
526 | !!------------------------------------------------------------------- |
---|
527 | !! *** ROUTINE lim_istate_init *** |
---|
528 | !! |
---|
529 | !! ** Purpose : Definition of initial state of the ice |
---|
530 | !! |
---|
531 | !! ** Method : Read the namiceini namelist and check the parameter |
---|
532 | !! values called at the first timestep (nit000) |
---|
533 | !! |
---|
534 | !! ** input : namelist namiceini |
---|
535 | !!----------------------------------------------------------------------------- |
---|
536 | NAMELIST/namiceini/ ttest, hninn, hginn_u, aginn_u, hginn_d, aginn_d, hnins, & |
---|
537 | & hgins_u, agins_u, hgins_d, agins_d, sinn, sins |
---|
538 | !!----------------------------------------------------------------------------- |
---|
539 | ! |
---|
540 | REWIND ( numnam_ice ) ! Read Namelist namiceini |
---|
541 | READ ( numnam_ice , namiceini ) |
---|
542 | ! |
---|
543 | IF(lwp) THEN ! control print |
---|
544 | WRITE(numout,*) |
---|
545 | WRITE(numout,*) 'lim_istate_init : ice parameters inititialisation ' |
---|
546 | WRITE(numout,*) '~~~~~~~~~~~~~~~' |
---|
547 | WRITE(numout,*) ' threshold water temp. for initial sea-ice ttest = ', ttest |
---|
548 | WRITE(numout,*) ' initial snow thickness in the north hninn = ', hninn |
---|
549 | WRITE(numout,*) ' initial undef ice thickness in the north hginn_u = ', hginn_u |
---|
550 | WRITE(numout,*) ' initial undef ice concentr. in the north aginn_u = ', aginn_u |
---|
551 | WRITE(numout,*) ' initial def ice thickness in the north hginn_d = ', hginn_d |
---|
552 | WRITE(numout,*) ' initial def ice concentr. in the north aginn_d = ', aginn_d |
---|
553 | WRITE(numout,*) ' initial snow thickness in the south hnins = ', hnins |
---|
554 | WRITE(numout,*) ' initial undef ice thickness in the north hgins_u = ', hgins_u |
---|
555 | WRITE(numout,*) ' initial undef ice concentr. in the north agins_u = ', agins_u |
---|
556 | WRITE(numout,*) ' initial def ice thickness in the north hgins_d = ', hgins_d |
---|
557 | WRITE(numout,*) ' initial def ice concentr. in the north agins_d = ', agins_d |
---|
558 | WRITE(numout,*) ' initial ice salinity in the north sinn = ', sinn |
---|
559 | WRITE(numout,*) ' initial ice salinity in the south sins = ', sins |
---|
560 | ENDIF |
---|
561 | ! |
---|
562 | END SUBROUTINE lim_istate_init |
---|
563 | |
---|
564 | #else |
---|
565 | !!---------------------------------------------------------------------- |
---|
566 | !! Default option : Empty module NO LIM sea-ice model |
---|
567 | !!---------------------------------------------------------------------- |
---|
568 | CONTAINS |
---|
569 | SUBROUTINE lim_istate ! Empty routine |
---|
570 | END SUBROUTINE lim_istate |
---|
571 | #endif |
---|
572 | |
---|
573 | !!====================================================================== |
---|
574 | END MODULE limistate |
---|