1 | MODULE limthd |
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2 | !!====================================================================== |
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3 | !! *** MODULE limthd *** |
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4 | !! LIM-3 : ice thermodynamic |
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5 | !!====================================================================== |
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6 | !! History : LIM ! 2000-01 (M.A. Morales Maqueda, H. Goosse, T. Fichefet) LIM-1 |
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7 | !! 2.0 ! 2002-07 (C. Ethe, G. Madec) LIM-2 (F90 rewriting) |
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8 | !! 3.0 ! 2005-11 (M. Vancoppenolle) LIM-3 : Multi-layer thermodynamics + salinity variations |
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9 | !! - ! 2007-04 (M. Vancoppenolle) add lim_thd_glohec, lim_thd_con_dh and lim_thd_con_dif |
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10 | !! 3.2 ! 2009-07 (M. Vancoppenolle, Y. Aksenov, G. Madec) bug correction in wfx_snw |
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11 | !! 3.3 ! 2010-11 (G. Madec) corrected snow melting heat (due to factor betas) |
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12 | !! 4.0 ! 2011-02 (G. Madec) dynamical allocation |
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13 | !! - ! 2012-05 (C. Rousset) add penetration solar flux |
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14 | !!---------------------------------------------------------------------- |
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15 | #if defined key_lim3 |
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16 | !!---------------------------------------------------------------------- |
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17 | !! 'key_lim3' LIM3 sea-ice model |
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18 | !!---------------------------------------------------------------------- |
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19 | !! lim_thd : thermodynamic of sea ice |
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20 | !! lim_thd_init : initialisation of sea-ice thermodynamic |
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21 | !!---------------------------------------------------------------------- |
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22 | USE phycst ! physical constants |
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23 | USE dom_oce ! ocean space and time domain variables |
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24 | USE oce , ONLY : fraqsr_1lev |
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25 | USE ice ! LIM: sea-ice variables |
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26 | USE par_ice ! LIM: sea-ice parameters |
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27 | USE sbc_oce ! Surface boundary condition: ocean fields |
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28 | USE sbc_ice ! Surface boundary condition: ice fields |
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29 | USE thd_ice ! LIM thermodynamic sea-ice variables |
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30 | USE dom_ice ! LIM sea-ice domain |
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31 | USE domvvl ! domain: variable volume level |
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32 | USE limthd_dif ! LIM: thermodynamics, vertical diffusion |
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33 | USE limthd_dh ! LIM: thermodynamics, ice and snow thickness variation |
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34 | USE limthd_sal ! LIM: thermodynamics, ice salinity |
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35 | USE limthd_ent ! LIM: thermodynamics, ice enthalpy redistribution |
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36 | USE limtab ! LIM: 1D <==> 2D transformation |
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37 | USE limvar ! LIM: sea-ice variables |
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38 | USE lbclnk ! lateral boundary condition - MPP links |
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39 | USE lib_mpp ! MPP library |
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40 | USE wrk_nemo ! work arrays |
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41 | USE in_out_manager ! I/O manager |
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42 | USE prtctl ! Print control |
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43 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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44 | USE timing ! Timing |
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45 | USE limcons ! conservation tests |
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46 | |
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47 | IMPLICIT NONE |
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48 | PRIVATE |
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49 | |
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50 | PUBLIC lim_thd ! called by limstp module |
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51 | PUBLIC lim_thd_init ! called by iceini module |
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52 | |
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53 | REAL(wp) :: epsi10 = 1.e-10_wp ! |
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54 | |
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55 | !! * Substitutions |
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56 | # include "domzgr_substitute.h90" |
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57 | # include "vectopt_loop_substitute.h90" |
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58 | !!---------------------------------------------------------------------- |
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59 | !! NEMO/LIM3 3.3 , UCL - NEMO Consortium (2010) |
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60 | !! $Id$ |
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61 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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62 | !!---------------------------------------------------------------------- |
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63 | CONTAINS |
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64 | |
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65 | SUBROUTINE lim_thd( kt ) |
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66 | !!------------------------------------------------------------------- |
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67 | !! *** ROUTINE lim_thd *** |
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68 | !! |
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69 | !! ** Purpose : This routine manages ice thermodynamics |
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70 | !! |
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71 | !! ** Action : - Initialisation of some variables |
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72 | !! - Some preliminary computation (oceanic heat flux |
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73 | !! at the ice base, snow acc.,heat budget of the leads) |
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74 | !! - selection of the icy points and put them in an array |
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75 | !! - call lim_thd_dif for vertical heat diffusion |
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76 | !! - call lim_thd_dh for vertical ice growth and melt |
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77 | !! - call lim_thd_ent for enthalpy remapping |
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78 | !! - call lim_thd_sal for ice desalination |
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79 | !! - call lim_thd_temp to retrieve temperature from ice enthalpy |
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80 | !! - back to the geographic grid |
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81 | !! |
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82 | !! ** References : |
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83 | !!--------------------------------------------------------------------- |
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84 | INTEGER, INTENT(in) :: kt ! number of iteration |
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85 | !! |
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86 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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87 | INTEGER :: nbpb ! nb of icy pts for thermo. cal. |
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88 | INTEGER :: ii, ij ! temporary dummy loop index |
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89 | REAL(wp) :: zfric_umin = 0._wp ! lower bound for the friction velocity (cice value=5.e-04) |
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90 | REAL(wp) :: zch = 0.0057_wp ! heat transfer coefficient |
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91 | REAL(wp) :: zinda, zindb, zareamin |
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92 | REAL(wp) :: zfric_u, zqld, zqfr |
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93 | ! |
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94 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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95 | ! |
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96 | REAL(wp), POINTER, DIMENSION(:,:) :: zqsr, zqns |
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97 | !!------------------------------------------------------------------- |
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98 | CALL wrk_alloc( jpi, jpj, zqsr, zqns ) |
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99 | |
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100 | IF( nn_timing == 1 ) CALL timing_start('limthd') |
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101 | |
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102 | ! conservation test |
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103 | IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limthd', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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104 | |
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105 | !------------------------------------------------------------------------------! |
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106 | ! 1) Initialization of diagnostic variables ! |
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107 | !------------------------------------------------------------------------------! |
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108 | |
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109 | !-------------------- |
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110 | ! 1.2) Heat content |
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111 | !-------------------- |
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112 | ! Change the units of heat content; from global units to J.m3 |
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113 | DO jl = 1, jpl |
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114 | DO jk = 1, nlay_i |
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115 | DO jj = 1, jpj |
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116 | DO ji = 1, jpi |
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117 | !0 if no ice and 1 if yes |
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118 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 , - v_i(ji,jj,jl) + epsi10 ) ) |
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119 | !Energy of melting q(S,T) [J.m-3] |
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120 | e_i(ji,jj,jk,jl) = zindb * e_i(ji,jj,jk,jl) / ( area(ji,jj) * MAX( v_i(ji,jj,jl) , epsi10 ) ) * REAL( nlay_i ) |
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121 | !convert units ! very important that this line is here |
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122 | e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * unit_fac |
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123 | END DO |
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124 | END DO |
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125 | END DO |
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126 | DO jk = 1, nlay_s |
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127 | DO jj = 1, jpj |
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128 | DO ji = 1, jpi |
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129 | !0 if no ice and 1 if yes |
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130 | zindb = 1.0 - MAX( 0.0 , SIGN( 1.0 , - v_s(ji,jj,jl) + epsi10 ) ) |
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131 | !Energy of melting q(S,T) [J.m-3] |
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132 | e_s(ji,jj,jk,jl) = zindb * e_s(ji,jj,jk,jl) / ( area(ji,jj) * MAX( v_s(ji,jj,jl) , epsi10 ) ) * REAL( nlay_s ) |
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133 | !convert units ! very important that this line is here |
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134 | e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * unit_fac |
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135 | END DO |
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136 | END DO |
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137 | END DO |
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138 | END DO |
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139 | |
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140 | ! 2) Partial computation of forcing for the thermodynamic sea ice model. ! |
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141 | !-----------------------------------------------------------------------------! |
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142 | |
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143 | !--- Ocean solar and non solar fluxes to be used in zqld |
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144 | IF ( .NOT. lk_cpl ) THEN ! --- forced case, fluxes to the lead are the same as over the ocean |
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145 | ! |
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146 | zqsr(:,:) = qsr(:,:) ; zqns(:,:) = qns(:,:) |
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147 | ! |
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148 | ELSE ! --- coupled case, fluxes to the lead are total - intercepted |
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149 | ! |
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150 | zqsr(:,:) = qsr_tot(:,:) ; zqns(:,:) = qns_tot(:,:) |
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151 | ! |
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152 | DO jl = 1, jpl |
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153 | DO jj = 1, jpj |
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154 | DO ji = 1, jpi |
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155 | zqsr(ji,jj) = zqsr(ji,jj) - qsr_ice(ji,jj,jl) * a_i_b(ji,jj,jl) |
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156 | zqns(ji,jj) = zqns(ji,jj) - qns_ice(ji,jj,jl) * a_i_b(ji,jj,jl) |
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157 | END DO |
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158 | END DO |
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159 | END DO |
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160 | ! |
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161 | ENDIF |
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162 | |
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163 | !CDIR NOVERRCHK |
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164 | DO jj = 1, jpj |
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165 | !CDIR NOVERRCHK |
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166 | DO ji = 1, jpi |
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167 | zinda = tms(ji,jj) * ( 1._wp - MAX( 0._wp , SIGN( 1._wp , - at_i(ji,jj) + epsi10 ) ) ) ! 0 if no ice |
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168 | ! |
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169 | ! ! solar irradiance transmission at the mixed layer bottom and used in the lead heat budget |
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170 | ! ! practically no "direct lateral ablation" |
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171 | ! |
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172 | ! ! net downward heat flux from the ice to the ocean, expressed as a function of ocean |
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173 | ! ! temperature and turbulent mixing (McPhee, 1992) |
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174 | ! |
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175 | |
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176 | ! --- Energy received in the lead, zqld is defined everywhere (J.m-2) --- ! |
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177 | ! REMARK valid at least in forced mode from clem |
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178 | ! precip is included in qns but not in qns_ice |
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179 | IF ( lk_cpl ) THEN |
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180 | zqld = tms(ji,jj) * rdt_ice * & |
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181 | & ( zqsr(ji,jj) * fraqsr_1lev(ji,jj) + zqns(ji,jj) & ! pfrld already included in coupled mode |
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182 | & + ( pfrld(ji,jj)**betas - pfrld(ji,jj) ) * sprecip(ji,jj) * & ! heat content of precip |
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183 | & ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) & |
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184 | & + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) ) |
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185 | ELSE |
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186 | zqld = tms(ji,jj) * rdt_ice * & |
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187 | & ( pfrld(ji,jj) * ( zqsr(ji,jj) * fraqsr_1lev(ji,jj) + zqns(ji,jj) ) & |
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188 | & + ( pfrld(ji,jj)**betas - pfrld(ji,jj) ) * sprecip(ji,jj) * & ! heat content of precip |
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189 | & ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) & |
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190 | & + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) ) |
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191 | ENDIF |
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192 | |
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193 | !-- Energy needed to bring ocean surface layer until its freezing (<0, J.m-2) --- ! |
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194 | zqfr = tms(ji,jj) * rau0 * rcp * fse3t_m(ji,jj) * ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) ) |
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195 | |
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196 | !-- Energy Budget of the leads (J.m-2). Must be < 0 to form ice |
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197 | qlead(ji,jj) = MIN( 0._wp , zqld - zqfr ) |
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198 | |
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199 | ! If there is ice and leads are warming, then transfer energy from the lead budget and use it for bottom melting |
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200 | IF( at_i(ji,jj) > epsi10 .AND. zqld > 0._wp ) THEN |
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201 | fhld (ji,jj) = zqld * r1_rdtice / at_i(ji,jj) ! divided by at_i since this is (re)multiplied by a_i in limthd_dh.F90 |
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202 | qlead(ji,jj) = 0._wp |
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203 | ENDIF |
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204 | ! |
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205 | !-- Energy from the turbulent oceanic heat flux --- ! |
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206 | !clem zfric_u = MAX ( MIN( SQRT( ust2s(ji,jj) ) , zfric_umax ) , zfric_umin ) |
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207 | zfric_u = MAX( SQRT( ust2s(ji,jj) ), zfric_umin ) |
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208 | fhtur(ji,jj) = MAX( 0._wp, zinda * rau0 * rcp * zch * zfric_u * ( ( sst_m(ji,jj) + rt0 ) - t_bo(ji,jj) ) ) ! W.m-2 |
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209 | ! upper bound for fhtur: we do not want SST to drop below Tfreeze. |
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210 | ! So we say that the heat retrieved from the ocean (fhtur+fhld) must be < to the heat necessary to reach Tfreeze (zqfr) |
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211 | ! This is not a clean budget, so that should be corrected at some point |
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212 | fhtur(ji,jj) = zinda * MIN( fhtur(ji,jj), - fhld(ji,jj) - zqfr * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) ) |
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213 | |
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214 | ! ----------------------------------------- |
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215 | ! Net heat flux on top of ice-ocean [W.m-2] |
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216 | ! ----------------------------------------- |
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217 | ! First step here : heat flux at the ocean surface + precip |
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218 | ! Second step below : heat flux at the ice surface (after limthd_dif) |
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219 | hfx_in(ji,jj) = hfx_in(ji,jj) & |
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220 | ! heat flux above the ocean |
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221 | & + pfrld(ji,jj) * ( zqns(ji,jj) + zqsr(ji,jj) ) & |
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222 | ! latent heat of precip (note that precip is included in qns but not in qns_ice) |
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223 | & + ( 1._wp - pfrld(ji,jj) ) * sprecip(ji,jj) * ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) & |
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224 | & + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) |
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225 | |
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226 | ! ----------------------------------------------------------------------------- |
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227 | ! Net heat flux that is retroceded to the ocean or taken from the ocean [W.m-2] |
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228 | ! ----------------------------------------------------------------------------- |
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229 | ! First step here : non solar + precip - qlead - qturb |
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230 | ! Second step in limthd_dh : heat remaining if total melt (zq_rema) |
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231 | ! Third step in limsbc : heat from ice-ocean mass exchange (zf_mass) + solar |
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232 | hfx_out(ji,jj) = hfx_out(ji,jj) & |
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233 | ! Non solar heat flux received by the ocean |
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234 | & + pfrld(ji,jj) * qns(ji,jj) & |
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235 | ! latent heat of precip (note that precip is included in qns but not in qns_ice) |
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236 | & + ( pfrld(ji,jj)**betas - pfrld(ji,jj) ) * sprecip(ji,jj) & |
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237 | & * ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) & |
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238 | & + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) & |
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239 | ! heat flux taken from the ocean where there is open water ice formation |
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240 | & - qlead(ji,jj) * r1_rdtice & |
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241 | ! heat flux taken from the ocean during bottom growth/melt (fhld should be 0 while bott growth) |
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242 | & - at_i(ji,jj) * fhtur(ji,jj) & |
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243 | & - at_i(ji,jj) * fhld(ji,jj) |
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244 | |
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245 | END DO |
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246 | END DO |
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247 | |
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248 | !------------------------------------------------------------------------------! |
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249 | ! 3) Select icy points and fulfill arrays for the vectorial grid. |
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250 | !------------------------------------------------------------------------------! |
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251 | |
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252 | DO jl = 1, jpl !loop over ice categories |
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253 | |
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254 | IF( kt == nit000 .AND. lwp ) THEN |
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255 | WRITE(numout,*) ' lim_thd : transfer to 1D vectors. Category no : ', jl |
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256 | WRITE(numout,*) ' ~~~~~~~~' |
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257 | ENDIF |
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258 | |
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259 | zareamin = epsi10 |
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260 | nbpb = 0 |
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261 | DO jj = 1, jpj |
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262 | DO ji = 1, jpi |
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263 | IF ( a_i(ji,jj,jl) .gt. zareamin ) THEN |
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264 | nbpb = nbpb + 1 |
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265 | npb(nbpb) = (jj - 1) * jpi + ji |
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266 | ENDIF |
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267 | END DO |
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268 | END DO |
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269 | |
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270 | ! debug point to follow |
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271 | jiindex_1d = 0 |
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272 | IF( ln_nicep ) THEN |
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273 | DO ji = mi0(jiindx), mi1(jiindx) |
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274 | DO jj = mj0(jjindx), mj1(jjindx) |
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275 | jiindex_1d = (jj - 1) * jpi + ji |
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276 | WRITE(numout,*) ' lim_thd : Category no : ', jl |
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277 | END DO |
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278 | END DO |
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279 | ENDIF |
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280 | |
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281 | !------------------------------------------------------------------------------! |
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282 | ! 4) Thermodynamic computation |
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283 | !------------------------------------------------------------------------------! |
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284 | |
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285 | IF( lk_mpp ) CALL mpp_ini_ice( nbpb , numout ) |
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286 | |
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287 | IF( nbpb > 0 ) THEN ! If there is no ice, do nothing. |
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288 | |
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289 | !------------------------- |
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290 | ! 4.1 Move to 1D arrays |
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291 | !------------------------- |
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292 | |
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293 | CALL tab_2d_1d( nbpb, at_i_1d (1:nbpb), at_i , jpi, jpj, npb(1:nbpb) ) |
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294 | CALL tab_2d_1d( nbpb, a_i_1d (1:nbpb), a_i(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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295 | CALL tab_2d_1d( nbpb, ht_i_1d (1:nbpb), ht_i(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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296 | CALL tab_2d_1d( nbpb, ht_s_1d (1:nbpb), ht_s(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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297 | |
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298 | CALL tab_2d_1d( nbpb, t_su_1d (1:nbpb), t_su(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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299 | CALL tab_2d_1d( nbpb, sm_i_1d (1:nbpb), sm_i(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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300 | DO jk = 1, nlay_s |
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301 | CALL tab_2d_1d( nbpb, t_s_1d(1:nbpb,jk), t_s(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) ) |
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302 | CALL tab_2d_1d( nbpb, q_s_1d(1:nbpb,jk), e_s(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) ) |
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303 | END DO |
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304 | DO jk = 1, nlay_i |
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305 | CALL tab_2d_1d( nbpb, t_i_1d(1:nbpb,jk), t_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) ) |
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306 | CALL tab_2d_1d( nbpb, q_i_1d(1:nbpb,jk), e_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) ) |
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307 | CALL tab_2d_1d( nbpb, s_i_1d(1:nbpb,jk), s_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) ) |
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308 | END DO |
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309 | |
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310 | CALL tab_2d_1d( nbpb, tatm_ice_1d(1:nbpb), tatm_ice(:,:) , jpi, jpj, npb(1:nbpb) ) |
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311 | CALL tab_2d_1d( nbpb, qsr_ice_1d (1:nbpb), qsr_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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312 | CALL tab_2d_1d( nbpb, fr1_i0_1d (1:nbpb), fr1_i0 , jpi, jpj, npb(1:nbpb) ) |
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313 | CALL tab_2d_1d( nbpb, fr2_i0_1d (1:nbpb), fr2_i0 , jpi, jpj, npb(1:nbpb) ) |
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314 | CALL tab_2d_1d( nbpb, qns_ice_1d (1:nbpb), qns_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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315 | CALL tab_2d_1d( nbpb, ftr_ice_1d (1:nbpb), ftr_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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316 | IF( .NOT. lk_cpl ) THEN |
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317 | CALL tab_2d_1d( nbpb, qla_ice_1d (1:nbpb), qla_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) ) |
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318 | CALL tab_2d_1d( nbpb, dqla_ice_1d(1:nbpb), dqla_ice(:,:,jl), jpi, jpj, npb(1:nbpb) ) |
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319 | ENDIF |
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320 | CALL tab_2d_1d( nbpb, dqns_ice_1d(1:nbpb), dqns_ice(:,:,jl), jpi, jpj, npb(1:nbpb) ) |
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321 | CALL tab_2d_1d( nbpb, t_bo_1d (1:nbpb), t_bo , jpi, jpj, npb(1:nbpb) ) |
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322 | CALL tab_2d_1d( nbpb, sprecip_1d (1:nbpb), sprecip , jpi, jpj, npb(1:nbpb) ) |
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323 | CALL tab_2d_1d( nbpb, fhtur_1d (1:nbpb), fhtur , jpi, jpj, npb(1:nbpb) ) |
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324 | CALL tab_2d_1d( nbpb, qlead_1d (1:nbpb), qlead , jpi, jpj, npb(1:nbpb) ) |
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325 | CALL tab_2d_1d( nbpb, fhld_1d (1:nbpb), fhld , jpi, jpj, npb(1:nbpb) ) |
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326 | |
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327 | CALL tab_2d_1d( nbpb, wfx_snw_1d (1:nbpb), wfx_snw , jpi, jpj, npb(1:nbpb) ) |
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328 | CALL tab_2d_1d( nbpb, wfx_sub_1d (1:nbpb), wfx_sub , jpi, jpj, npb(1:nbpb) ) |
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329 | |
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330 | CALL tab_2d_1d( nbpb, wfx_bog_1d (1:nbpb), wfx_bog , jpi, jpj, npb(1:nbpb) ) |
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331 | CALL tab_2d_1d( nbpb, wfx_bom_1d (1:nbpb), wfx_bom , jpi, jpj, npb(1:nbpb) ) |
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332 | CALL tab_2d_1d( nbpb, wfx_sum_1d (1:nbpb), wfx_sum , jpi, jpj, npb(1:nbpb) ) |
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333 | CALL tab_2d_1d( nbpb, wfx_sni_1d (1:nbpb), wfx_sni , jpi, jpj, npb(1:nbpb) ) |
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334 | CALL tab_2d_1d( nbpb, wfx_res_1d (1:nbpb), wfx_res , jpi, jpj, npb(1:nbpb) ) |
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335 | CALL tab_2d_1d( nbpb, wfx_spr_1d (1:nbpb), wfx_spr , jpi, jpj, npb(1:nbpb) ) |
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336 | |
---|
337 | CALL tab_2d_1d( nbpb, sfx_bog_1d (1:nbpb), sfx_bog , jpi, jpj, npb(1:nbpb) ) |
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338 | CALL tab_2d_1d( nbpb, sfx_bom_1d (1:nbpb), sfx_bom , jpi, jpj, npb(1:nbpb) ) |
---|
339 | CALL tab_2d_1d( nbpb, sfx_sum_1d (1:nbpb), sfx_sum , jpi, jpj, npb(1:nbpb) ) |
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340 | CALL tab_2d_1d( nbpb, sfx_sni_1d (1:nbpb), sfx_sni , jpi, jpj, npb(1:nbpb) ) |
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341 | CALL tab_2d_1d( nbpb, sfx_bri_1d (1:nbpb), sfx_bri , jpi, jpj, npb(1:nbpb) ) |
---|
342 | CALL tab_2d_1d( nbpb, sfx_res_1d (1:nbpb), sfx_res , jpi, jpj, npb(1:nbpb) ) |
---|
343 | |
---|
344 | CALL tab_2d_1d( nbpb, hfx_thd_1d (1:nbpb), hfx_thd , jpi, jpj, npb(1:nbpb) ) |
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345 | CALL tab_2d_1d( nbpb, hfx_spr_1d (1:nbpb), hfx_spr , jpi, jpj, npb(1:nbpb) ) |
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346 | CALL tab_2d_1d( nbpb, hfx_sum_1d (1:nbpb), hfx_sum , jpi, jpj, npb(1:nbpb) ) |
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347 | CALL tab_2d_1d( nbpb, hfx_bom_1d (1:nbpb), hfx_bom , jpi, jpj, npb(1:nbpb) ) |
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348 | CALL tab_2d_1d( nbpb, hfx_bog_1d (1:nbpb), hfx_bog , jpi, jpj, npb(1:nbpb) ) |
---|
349 | CALL tab_2d_1d( nbpb, hfx_dif_1d (1:nbpb), hfx_dif , jpi, jpj, npb(1:nbpb) ) |
---|
350 | CALL tab_2d_1d( nbpb, hfx_opw_1d (1:nbpb), hfx_opw , jpi, jpj, npb(1:nbpb) ) |
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351 | CALL tab_2d_1d( nbpb, hfx_snw_1d (1:nbpb), hfx_snw , jpi, jpj, npb(1:nbpb) ) |
---|
352 | CALL tab_2d_1d( nbpb, hfx_sub_1d (1:nbpb), hfx_sub , jpi, jpj, npb(1:nbpb) ) |
---|
353 | CALL tab_2d_1d( nbpb, hfx_err_1d (1:nbpb), hfx_err , jpi, jpj, npb(1:nbpb) ) |
---|
354 | CALL tab_2d_1d( nbpb, hfx_res_1d (1:nbpb), hfx_res , jpi, jpj, npb(1:nbpb) ) |
---|
355 | CALL tab_2d_1d( nbpb, hfx_err_rem_1d (1:nbpb), hfx_err_rem , jpi, jpj, npb(1:nbpb) ) |
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356 | |
---|
357 | !-------------------------------- |
---|
358 | ! 4.3) Thermodynamic processes |
---|
359 | !-------------------------------- |
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360 | |
---|
361 | !---------------------------------! |
---|
362 | ! Ice/Snow Temperature profile ! |
---|
363 | !---------------------------------! |
---|
364 | CALL lim_thd_dif( 1, nbpb ) |
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365 | |
---|
366 | !---------------------------------! |
---|
367 | ! Ice/Snow thicnkess ! |
---|
368 | !---------------------------------! |
---|
369 | CALL lim_thd_dh( 1, nbpb ) |
---|
370 | |
---|
371 | ! --- Ice enthalpy remapping --- ! |
---|
372 | CALL lim_thd_ent( 1, nbpb, q_i_1d(1:nbpb,:) ) |
---|
373 | |
---|
374 | !---------------------------------! |
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375 | ! --- Ice salinity --- ! |
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376 | !---------------------------------! |
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377 | CALL lim_thd_sal( 1, nbpb ) |
---|
378 | |
---|
379 | !---------------------------------! |
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380 | ! --- temperature update --- ! |
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381 | !---------------------------------! |
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382 | CALL lim_thd_temp( 1, nbpb ) |
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383 | |
---|
384 | !-------------------------------- |
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385 | ! 4.4) Move 1D to 2D vectors |
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386 | !-------------------------------- |
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387 | |
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388 | CALL tab_1d_2d( nbpb, at_i , npb, at_i_1d (1:nbpb) , jpi, jpj ) |
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389 | CALL tab_1d_2d( nbpb, ht_i(:,:,jl) , npb, ht_i_1d (1:nbpb) , jpi, jpj ) |
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390 | CALL tab_1d_2d( nbpb, ht_s(:,:,jl) , npb, ht_s_1d (1:nbpb) , jpi, jpj ) |
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391 | CALL tab_1d_2d( nbpb, a_i (:,:,jl) , npb, a_i_1d (1:nbpb) , jpi, jpj ) |
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392 | CALL tab_1d_2d( nbpb, t_su(:,:,jl) , npb, t_su_1d (1:nbpb) , jpi, jpj ) |
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393 | CALL tab_1d_2d( nbpb, sm_i(:,:,jl) , npb, sm_i_1d (1:nbpb) , jpi, jpj ) |
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394 | DO jk = 1, nlay_s |
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395 | CALL tab_1d_2d( nbpb, t_s(:,:,jk,jl), npb, t_s_1d (1:nbpb,jk), jpi, jpj) |
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396 | CALL tab_1d_2d( nbpb, e_s(:,:,jk,jl), npb, q_s_1d (1:nbpb,jk), jpi, jpj) |
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397 | END DO |
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398 | DO jk = 1, nlay_i |
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399 | CALL tab_1d_2d( nbpb, t_i(:,:,jk,jl), npb, t_i_1d (1:nbpb,jk), jpi, jpj) |
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400 | CALL tab_1d_2d( nbpb, e_i(:,:,jk,jl), npb, q_i_1d (1:nbpb,jk), jpi, jpj) |
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401 | CALL tab_1d_2d( nbpb, s_i(:,:,jk,jl), npb, s_i_1d (1:nbpb,jk), jpi, jpj) |
---|
402 | END DO |
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403 | CALL tab_1d_2d( nbpb, qlead , npb, qlead_1d (1:nbpb) , jpi, jpj ) |
---|
404 | |
---|
405 | CALL tab_1d_2d( nbpb, wfx_snw , npb, wfx_snw_1d(1:nbpb) , jpi, jpj ) |
---|
406 | CALL tab_1d_2d( nbpb, wfx_sub , npb, wfx_sub_1d(1:nbpb) , jpi, jpj ) |
---|
407 | |
---|
408 | CALL tab_1d_2d( nbpb, wfx_bog , npb, wfx_bog_1d(1:nbpb) , jpi, jpj ) |
---|
409 | CALL tab_1d_2d( nbpb, wfx_bom , npb, wfx_bom_1d(1:nbpb) , jpi, jpj ) |
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410 | CALL tab_1d_2d( nbpb, wfx_sum , npb, wfx_sum_1d(1:nbpb) , jpi, jpj ) |
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411 | CALL tab_1d_2d( nbpb, wfx_sni , npb, wfx_sni_1d(1:nbpb) , jpi, jpj ) |
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412 | CALL tab_1d_2d( nbpb, wfx_res , npb, wfx_res_1d(1:nbpb) , jpi, jpj ) |
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413 | CALL tab_1d_2d( nbpb, wfx_spr , npb, wfx_spr_1d(1:nbpb) , jpi, jpj ) |
---|
414 | |
---|
415 | CALL tab_1d_2d( nbpb, sfx_bog , npb, sfx_bog_1d(1:nbpb) , jpi, jpj ) |
---|
416 | CALL tab_1d_2d( nbpb, sfx_bom , npb, sfx_bom_1d(1:nbpb) , jpi, jpj ) |
---|
417 | CALL tab_1d_2d( nbpb, sfx_sum , npb, sfx_sum_1d(1:nbpb) , jpi, jpj ) |
---|
418 | CALL tab_1d_2d( nbpb, sfx_sni , npb, sfx_sni_1d(1:nbpb) , jpi, jpj ) |
---|
419 | CALL tab_1d_2d( nbpb, sfx_res , npb, sfx_res_1d(1:nbpb) , jpi, jpj ) |
---|
420 | ! |
---|
421 | IF( num_sal == 2 ) THEN |
---|
422 | CALL tab_1d_2d( nbpb, sfx_bri , npb, sfx_bri_1d(1:nbpb) , jpi, jpj ) |
---|
423 | ENDIF |
---|
424 | |
---|
425 | CALL tab_1d_2d( nbpb, hfx_thd , npb, hfx_thd_1d(1:nbpb) , jpi, jpj ) |
---|
426 | CALL tab_1d_2d( nbpb, hfx_spr , npb, hfx_spr_1d(1:nbpb) , jpi, jpj ) |
---|
427 | CALL tab_1d_2d( nbpb, hfx_sum , npb, hfx_sum_1d(1:nbpb) , jpi, jpj ) |
---|
428 | CALL tab_1d_2d( nbpb, hfx_bom , npb, hfx_bom_1d(1:nbpb) , jpi, jpj ) |
---|
429 | CALL tab_1d_2d( nbpb, hfx_bog , npb, hfx_bog_1d(1:nbpb) , jpi, jpj ) |
---|
430 | CALL tab_1d_2d( nbpb, hfx_dif , npb, hfx_dif_1d(1:nbpb) , jpi, jpj ) |
---|
431 | CALL tab_1d_2d( nbpb, hfx_opw , npb, hfx_opw_1d(1:nbpb) , jpi, jpj ) |
---|
432 | CALL tab_1d_2d( nbpb, hfx_snw , npb, hfx_snw_1d(1:nbpb) , jpi, jpj ) |
---|
433 | CALL tab_1d_2d( nbpb, hfx_sub , npb, hfx_sub_1d(1:nbpb) , jpi, jpj ) |
---|
434 | CALL tab_1d_2d( nbpb, hfx_err , npb, hfx_err_1d(1:nbpb) , jpi, jpj ) |
---|
435 | CALL tab_1d_2d( nbpb, hfx_res , npb, hfx_res_1d(1:nbpb) , jpi, jpj ) |
---|
436 | CALL tab_1d_2d( nbpb, hfx_err_rem , npb, hfx_err_rem_1d(1:nbpb) , jpi, jpj ) |
---|
437 | ! |
---|
438 | !+++++ temporary stuff for a dummy version |
---|
439 | CALL tab_1d_2d( nbpb, dh_i_surf2D, npb, dh_i_surf(1:nbpb) , jpi, jpj ) |
---|
440 | CALL tab_1d_2d( nbpb, dh_i_bott2D, npb, dh_i_bott(1:nbpb) , jpi, jpj ) |
---|
441 | CALL tab_1d_2d( nbpb, s_i_newice , npb, s_i_new (1:nbpb) , jpi, jpj ) |
---|
442 | CALL tab_1d_2d( nbpb, izero(:,:,jl) , npb, i0 (1:nbpb) , jpi, jpj ) |
---|
443 | !+++++ |
---|
444 | CALL tab_1d_2d( nbpb, qns_ice(:,:,jl), npb, qns_ice_1d(1:nbpb) , jpi, jpj) |
---|
445 | CALL tab_1d_2d( nbpb, ftr_ice(:,:,jl), npb, ftr_ice_1d(1:nbpb) , jpi, jpj ) |
---|
446 | ! |
---|
447 | IF( lk_mpp ) CALL mpp_comm_free( ncomm_ice ) !RB necessary ?? |
---|
448 | ENDIF |
---|
449 | ! |
---|
450 | END DO |
---|
451 | |
---|
452 | !------------------------------------------------------------------------------! |
---|
453 | ! 5) Global variables, diagnostics |
---|
454 | !------------------------------------------------------------------------------! |
---|
455 | |
---|
456 | !------------------------ |
---|
457 | ! 5.1) Ice heat content |
---|
458 | !------------------------ |
---|
459 | ! Enthalpies are global variables we have to readjust the units (heat content in Joules) |
---|
460 | DO jl = 1, jpl |
---|
461 | DO jk = 1, nlay_i |
---|
462 | e_i(:,:,jk,jl) = e_i(:,:,jk,jl) * area(:,:) * a_i(:,:,jl) * ht_i(:,:,jl) / ( unit_fac * REAL( nlay_i ) ) |
---|
463 | END DO |
---|
464 | END DO |
---|
465 | |
---|
466 | !------------------------ |
---|
467 | ! 5.2) Snow heat content |
---|
468 | !------------------------ |
---|
469 | ! Enthalpies are global variables we have to readjust the units (heat content in Joules) |
---|
470 | DO jl = 1, jpl |
---|
471 | DO jk = 1, nlay_s |
---|
472 | e_s(:,:,jk,jl) = e_s(:,:,jk,jl) * area(:,:) * a_i(:,:,jl) * ht_s(:,:,jl) / ( unit_fac * REAL( nlay_s ) ) |
---|
473 | END DO |
---|
474 | END DO |
---|
475 | |
---|
476 | !---------------------------------- |
---|
477 | ! 5.3) Change thickness to volume |
---|
478 | !---------------------------------- |
---|
479 | CALL lim_var_eqv2glo |
---|
480 | |
---|
481 | !-------------------------------------------- |
---|
482 | ! 5.4) Diagnostic thermodynamic growth rates |
---|
483 | !-------------------------------------------- |
---|
484 | IF(ln_ctl) THEN ! Control print |
---|
485 | CALL prt_ctl_info(' ') |
---|
486 | CALL prt_ctl_info(' - Cell values : ') |
---|
487 | CALL prt_ctl_info(' ~~~~~~~~~~~~~ ') |
---|
488 | CALL prt_ctl(tab2d_1=area , clinfo1=' lim_thd : cell area :') |
---|
489 | CALL prt_ctl(tab2d_1=at_i , clinfo1=' lim_thd : at_i :') |
---|
490 | CALL prt_ctl(tab2d_1=vt_i , clinfo1=' lim_thd : vt_i :') |
---|
491 | CALL prt_ctl(tab2d_1=vt_s , clinfo1=' lim_thd : vt_s :') |
---|
492 | DO jl = 1, jpl |
---|
493 | CALL prt_ctl_info(' ') |
---|
494 | CALL prt_ctl_info(' - Category : ', ivar1=jl) |
---|
495 | CALL prt_ctl_info(' ~~~~~~~~~~') |
---|
496 | CALL prt_ctl(tab2d_1=a_i (:,:,jl) , clinfo1= ' lim_thd : a_i : ') |
---|
497 | CALL prt_ctl(tab2d_1=ht_i (:,:,jl) , clinfo1= ' lim_thd : ht_i : ') |
---|
498 | CALL prt_ctl(tab2d_1=ht_s (:,:,jl) , clinfo1= ' lim_thd : ht_s : ') |
---|
499 | CALL prt_ctl(tab2d_1=v_i (:,:,jl) , clinfo1= ' lim_thd : v_i : ') |
---|
500 | CALL prt_ctl(tab2d_1=v_s (:,:,jl) , clinfo1= ' lim_thd : v_s : ') |
---|
501 | CALL prt_ctl(tab2d_1=e_s (:,:,1,jl) , clinfo1= ' lim_thd : e_s : ') |
---|
502 | CALL prt_ctl(tab2d_1=t_su (:,:,jl) , clinfo1= ' lim_thd : t_su : ') |
---|
503 | CALL prt_ctl(tab2d_1=t_s (:,:,1,jl) , clinfo1= ' lim_thd : t_snow : ') |
---|
504 | CALL prt_ctl(tab2d_1=sm_i (:,:,jl) , clinfo1= ' lim_thd : sm_i : ') |
---|
505 | CALL prt_ctl(tab2d_1=smv_i (:,:,jl) , clinfo1= ' lim_thd : smv_i : ') |
---|
506 | DO jk = 1, nlay_i |
---|
507 | CALL prt_ctl_info(' ') |
---|
508 | CALL prt_ctl_info(' - Layer : ', ivar1=jk) |
---|
509 | CALL prt_ctl_info(' ~~~~~~~') |
---|
510 | CALL prt_ctl(tab2d_1=t_i(:,:,jk,jl) , clinfo1= ' lim_thd : t_i : ') |
---|
511 | CALL prt_ctl(tab2d_1=e_i(:,:,jk,jl) , clinfo1= ' lim_thd : e_i : ') |
---|
512 | END DO |
---|
513 | END DO |
---|
514 | ENDIF |
---|
515 | ! |
---|
516 | ! |
---|
517 | CALL wrk_dealloc( jpi, jpj, zqsr, zqns ) |
---|
518 | |
---|
519 | ! |
---|
520 | ! conservation test |
---|
521 | IF( ln_limdiahsb ) CALL lim_cons_hsm(1, 'limthd', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
---|
522 | ! |
---|
523 | IF( nn_timing == 1 ) CALL timing_stop('limthd') |
---|
524 | |
---|
525 | END SUBROUTINE lim_thd |
---|
526 | |
---|
527 | SUBROUTINE lim_thd_temp( kideb, kiut ) |
---|
528 | !!----------------------------------------------------------------------- |
---|
529 | !! *** ROUTINE lim_thd_temp *** |
---|
530 | !! |
---|
531 | !! ** Purpose : Computes sea ice temperature (Kelvin) from enthalpy |
---|
532 | !! |
---|
533 | !! ** Method : Formula (Bitz and Lipscomb, 1999) |
---|
534 | !!------------------------------------------------------------------- |
---|
535 | INTEGER, INTENT(in) :: kideb, kiut ! bounds for the spatial loop |
---|
536 | !! |
---|
537 | INTEGER :: ji, jk ! dummy loop indices |
---|
538 | REAL(wp) :: ztmelts, zswitch, zaaa, zbbb, zccc, zdiscrim ! local scalar |
---|
539 | !!------------------------------------------------------------------- |
---|
540 | ! Recover ice temperature |
---|
541 | DO jk = 1, nlay_i |
---|
542 | DO ji = kideb, kiut |
---|
543 | ztmelts = -tmut * s_i_1d(ji,jk) + rtt |
---|
544 | ! Conversion q(S,T) -> T (second order equation) |
---|
545 | zaaa = cpic |
---|
546 | zbbb = ( rcp - cpic ) * ( ztmelts - rtt ) + q_i_1d(ji,jk) / rhoic - lfus |
---|
547 | zccc = lfus * ( ztmelts - rtt ) |
---|
548 | zdiscrim = SQRT( MAX( zbbb * zbbb - 4._wp * zaaa * zccc, 0._wp ) ) |
---|
549 | t_i_1d(ji,jk) = rtt - ( zbbb + zdiscrim ) / ( 2._wp * zaaa ) |
---|
550 | |
---|
551 | ! mask temperature |
---|
552 | zswitch = 1._wp - MAX( 0._wp , SIGN( 1._wp , - ht_i_1d(ji) ) ) |
---|
553 | t_i_1d(ji,jk) = zswitch * t_i_1d(ji,jk) + ( 1._wp - zswitch ) * rtt |
---|
554 | END DO |
---|
555 | END DO |
---|
556 | |
---|
557 | END SUBROUTINE lim_thd_temp |
---|
558 | |
---|
559 | SUBROUTINE lim_thd_init |
---|
560 | !!----------------------------------------------------------------------- |
---|
561 | !! *** ROUTINE lim_thd_init *** |
---|
562 | !! |
---|
563 | !! ** Purpose : Physical constants and parameters linked to the ice |
---|
564 | !! thermodynamics |
---|
565 | !! |
---|
566 | !! ** Method : Read the namicethd namelist and check the ice-thermo |
---|
567 | !! parameter values called at the first timestep (nit000) |
---|
568 | !! |
---|
569 | !! ** input : Namelist namicether |
---|
570 | !!------------------------------------------------------------------- |
---|
571 | INTEGER :: ios ! Local integer output status for namelist read |
---|
572 | NAMELIST/namicethd/ hmelt , hiccrit, fraz_swi, maxfrazb, vfrazb, Cfrazb, & |
---|
573 | & hiclim, hnzst, parsub, betas, & |
---|
574 | & kappa_i, nconv_i_thd, maxer_i_thd, thcon_i_swi |
---|
575 | !!------------------------------------------------------------------- |
---|
576 | ! |
---|
577 | IF(lwp) THEN |
---|
578 | WRITE(numout,*) |
---|
579 | WRITE(numout,*) 'lim_thd : Ice Thermodynamics' |
---|
580 | WRITE(numout,*) '~~~~~~~' |
---|
581 | ENDIF |
---|
582 | ! |
---|
583 | REWIND( numnam_ice_ref ) ! Namelist namicethd in reference namelist : Ice thermodynamics |
---|
584 | READ ( numnam_ice_ref, namicethd, IOSTAT = ios, ERR = 901) |
---|
585 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in reference namelist', lwp ) |
---|
586 | |
---|
587 | REWIND( numnam_ice_cfg ) ! Namelist namicethd in configuration namelist : Ice thermodynamics |
---|
588 | READ ( numnam_ice_cfg, namicethd, IOSTAT = ios, ERR = 902 ) |
---|
589 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in configuration namelist', lwp ) |
---|
590 | IF(lwm) WRITE ( numoni, namicethd ) |
---|
591 | |
---|
592 | IF( lk_cpl .AND. parsub /= 0.0 ) CALL ctl_stop( 'In coupled mode, use parsub = 0. or send dqla' ) |
---|
593 | ! |
---|
594 | IF(lwp) THEN ! control print |
---|
595 | WRITE(numout,*) |
---|
596 | WRITE(numout,*)' Namelist of ice parameters for ice thermodynamic computation ' |
---|
597 | WRITE(numout,*)' maximum melting at the bottom hmelt = ', hmelt |
---|
598 | WRITE(numout,*)' ice thick. for lateral accretion hiccrit = ', hiccrit |
---|
599 | WRITE(numout,*)' Frazil ice thickness as a function of wind or not fraz_swi = ', fraz_swi |
---|
600 | WRITE(numout,*)' Maximum proportion of frazil ice collecting at bottom maxfrazb = ', maxfrazb |
---|
601 | WRITE(numout,*)' Thresold relative drift speed for collection of frazil vfrazb = ', vfrazb |
---|
602 | WRITE(numout,*)' Squeezing coefficient for collection of frazil Cfrazb = ', Cfrazb |
---|
603 | WRITE(numout,*)' minimum ice thickness hiclim = ', hiclim |
---|
604 | WRITE(numout,*)' numerical carac. of the scheme for diffusion in ice ' |
---|
605 | WRITE(numout,*)' thickness of the surf. layer in temp. computation hnzst = ', hnzst |
---|
606 | WRITE(numout,*)' switch for snow sublimation (=1) or not (=0) parsub = ', parsub |
---|
607 | WRITE(numout,*)' coefficient for ice-lead partition of snowfall betas = ', betas |
---|
608 | WRITE(numout,*)' extinction radiation parameter in sea ice (1.0) kappa_i = ', kappa_i |
---|
609 | WRITE(numout,*)' maximal n. of iter. for heat diffusion computation nconv_i_thd = ', nconv_i_thd |
---|
610 | WRITE(numout,*)' maximal err. on T for heat diffusion computation maxer_i_thd = ', maxer_i_thd |
---|
611 | WRITE(numout,*)' switch for comp. of thermal conductivity in the ice thcon_i_swi = ', thcon_i_swi |
---|
612 | WRITE(numout,*)' check heat conservation in the ice/snow con_i = ', con_i |
---|
613 | ENDIF |
---|
614 | ! |
---|
615 | END SUBROUTINE lim_thd_init |
---|
616 | |
---|
617 | #else |
---|
618 | !!---------------------------------------------------------------------- |
---|
619 | !! Default option Dummy module NO LIM3 sea-ice model |
---|
620 | !!---------------------------------------------------------------------- |
---|
621 | #endif |
---|
622 | |
---|
623 | !!====================================================================== |
---|
624 | END MODULE limthd |
---|