1 | MODULE sbcfwb_tam |
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2 | #if defined key_tam |
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3 | !!====================================================================== |
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4 | !! *** MODULE sbcfwb *** |
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5 | !! Ocean fluxes : domain averaged freshwater budget |
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6 | !!====================================================================== |
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7 | !! History of the direct module: |
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8 | !! 8.2 ! 01-02 (E. Durand) Original code |
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9 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
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10 | !! 9.0 ! 06-08 (G. Madec) Surface module |
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11 | !! 9.2 ! 09-07 (C. Talandier) emp mean s spread over erp area |
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12 | !! History of the T&A module: |
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13 | !! 9.0 ! 06-08 (A. Vidard) Surface module |
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14 | !! 9.2 ! 09-07 (A. Vidard) NEMO3.2 update |
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15 | !!---------------------------------------------------------------------- |
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16 | |
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17 | !!---------------------------------------------------------------------- |
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18 | !! sbc_fwb : freshwater budget for global ocean configurations |
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19 | !! in free surface and forced mode |
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20 | !!---------------------------------------------------------------------- |
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21 | USE par_kind , ONLY: & ! |
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22 | & wp |
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23 | USE par_oce , ONLY: & ! Ocean space and time domain variables |
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24 | & jpi, & |
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25 | & jpj, & |
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26 | & jpiglo |
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27 | USE oce_tam , ONLY: & ! ocean dynamics and tracers |
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28 | & sshn_tl, & |
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29 | & sshn_ad |
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30 | USE sbc_oce_tam , ONLY: & ! surface variables |
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31 | & emp_tl, & |
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32 | & emps_tl, & |
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33 | & emp_ad, & |
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34 | & emps_ad |
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35 | USE dom_oce , ONLY: & ! ocean space and time domain |
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36 | & rdttra, & |
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37 | & e1t, & |
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38 | & e2t, & |
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39 | #if defined key_zco |
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40 | & e3t_0, & |
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41 | #else |
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42 | & e3t, & |
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43 | #endif |
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44 | & tmask, & |
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45 | & tmask_i, & |
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46 | & mig, & |
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47 | & mjg, & |
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48 | & nldi, & |
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49 | & nldj, & |
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50 | & nlei, & |
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51 | & nlej |
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52 | |
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53 | USE tstool_tam , ONLY: & |
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54 | & prntst_adj, & |
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55 | & stdemp, & ! evaporation minus precip |
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56 | & stdssh ! sea surface height |
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57 | USE in_out_manager, ONLY: & ! I/O manager |
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58 | & lwp, & |
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59 | & ctl_stop, & |
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60 | & numout, & |
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61 | & nit000, & |
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62 | & nitend, & |
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63 | & ctmp1 |
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64 | USE lib_mpp ! distribued memory computing library |
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65 | USE gridrandom , ONLY: & ! Random Gaussian noise on grids |
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66 | & grid_random |
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67 | USE dotprodfld , ONLY: & ! Computes dot product for 3D and 2D fields |
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68 | & dot_product |
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69 | |
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70 | IMPLICIT NONE |
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71 | PRIVATE |
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72 | |
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73 | PUBLIC sbc_fwb_adj ! routine called by sbcmod_tam |
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74 | PUBLIC sbc_fwb_tan ! routine called by sbcmod_tam |
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75 | PUBLIC sbc_fwb_adj_tst ! routine called by tst |
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76 | |
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77 | REAL(wp), PUBLIC :: a_fwb_tl ! for before year. |
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78 | REAL(wp), PUBLIC :: a_fwb_ad ! for before year. |
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79 | REAL(wp) :: area ! global mean ocean surface (interior domain) |
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80 | |
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81 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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82 | & e1e2_i ! area of the interior domain (e1t*e2t*tmask_i) |
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83 | |
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84 | !! * Substitutions |
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85 | # include "domzgr_substitute.h90" |
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86 | # include "vectopt_loop_substitute.h90" |
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87 | !!---------------------------------------------------------------------- |
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88 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
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89 | !! $Id: sbcfwb.F90 1168 2008-08-11 10:21:06Z rblod $ |
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90 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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91 | !!---------------------------------------------------------------------- |
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92 | CONTAINS |
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93 | |
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94 | SUBROUTINE sbc_fwb_tan( kt, kn_fwb, kn_fsbc ) |
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95 | !!--------------------------------------------------------------------- |
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96 | !! *** ROUTINE sbc_fwb_tan *** |
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97 | !! |
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98 | !! ** Purpose : Control the mean sea surface drift |
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99 | !! |
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100 | !! ** Method : several ways depending on kn_fwb |
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101 | !! =0 no control |
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102 | !! =1 global mean of emp set to zero at each nn_fsbc time step |
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103 | !! =2 annual global mean corrected from previous year |
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104 | !! =3 variable relaxation time to zero or to a time varying field |
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105 | !!---------------------------------------------------------------------- |
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106 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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107 | INTEGER, INTENT( in ) :: kn_fsbc ! |
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108 | INTEGER, INTENT( in ) :: kn_fwb ! ocean time-step index |
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109 | !! |
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110 | INTEGER :: inum ! temporary logical unit |
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111 | INTEGER :: ikty, iyear ! |
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112 | CHARACTER (len=32) :: clname |
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113 | REAL(wp) :: z_emptl ! temporary scalars |
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114 | !!---------------------------------------------------------------------- |
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115 | ! |
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116 | IF( kt == nit000 ) THEN |
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117 | ! |
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118 | IF(lwp) THEN |
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119 | WRITE(numout,*) |
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120 | WRITE(numout,*) 'sbc_fwb_tan : FreshWater Budget correction.' |
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121 | WRITE(numout,*) '~~~~~~~~~~~' |
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122 | ENDIF |
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123 | ! |
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124 | e1e2_i(:,:) = e1t(:,:) * e2t(:,:) * tmask_i(:,:) |
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125 | area = SUM( e1e2_i(:,:) ) |
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126 | IF( lk_mpp ) CALL mpp_sum( area ) ! sum over the global domain |
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127 | ! |
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128 | ENDIF |
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129 | |
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130 | |
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131 | SELECT CASE ( kn_fwb ) |
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132 | ! |
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133 | CASE ( 1 ) ! global mean emp set to zero |
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134 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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135 | z_emptl = SUM( e1e2_i(:,:) * emp_tl(:,:) ) / area |
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136 | IF( lk_mpp ) CALL mpp_sum( z_emptl ) ! sum over the global domain |
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137 | emp_tl (:,:) = emp_tl (:,:) - z_emptl |
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138 | emps_tl(:,:) = emps_tl(:,:) - z_emptl |
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139 | ENDIF |
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140 | ! |
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141 | CASE ( 2 ) ! emp budget adjusted from the previous year |
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142 | ! initialisation |
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143 | IF( kt == nit000 ) THEN |
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144 | a_fwb_tl = 0.0_wp |
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145 | ENDIF |
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146 | ! |
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147 | ikty = 365 * 86400 / rdttra(1) !!bug use of 365 days leap year or 360d year !!!!!!! |
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148 | IF( MOD( kt, ikty ) == 0 ) THEN |
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149 | a_fwb_tl = SUM( e1e2_i(:,:) * sshn_tl(:,:) ) |
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150 | IF( lk_mpp ) CALL mpp_sum( a_fwb_tl ) ! sum over the global domain |
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151 | a_fwb_tl = a_fwb_tl * 1.e+3 / ( area * 86400. * 365. ) ! convert in Kg/m3/s = mm/s |
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152 | !!gm ! !!bug 365d year |
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153 | ENDIF |
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154 | ! |
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155 | ! correct the freshwater fluxes |
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156 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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157 | emp_tl (:,:) = emp_tl (:,:) + a_fwb_tl |
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158 | emps_tl(:,:) = emps_tl(:,:) + a_fwb_tl |
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159 | ENDIF |
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160 | ! |
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161 | CASE ( 3 ) |
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162 | ! |
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163 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not available for TAM yet , choose either 0/1/2' |
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164 | CALL ctl_stop( ctmp1 ) |
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165 | |
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166 | ! |
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167 | CASE DEFAULT ! you should never be there |
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168 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not permitted for the FreshWater Budget correction, choose either 0/1/2' |
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169 | CALL ctl_stop( ctmp1 ) |
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170 | ! |
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171 | END SELECT |
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172 | ! |
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173 | END SUBROUTINE sbc_fwb_tan |
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174 | |
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175 | |
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176 | SUBROUTINE sbc_fwb_adj( kt, kn_fwb, kn_fsbc ) |
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177 | !!--------------------------------------------------------------------- |
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178 | !! *** ROUTINE sbc_fwb_adj *** |
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179 | !! |
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180 | !! ** Purpose : Control the mean sea surface drift |
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181 | !! |
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182 | !! ** Method : several ways depending on kn_fwb |
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183 | !! =0 no control |
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184 | !! =1 global mean of emp set to zero at each nn_fsbc time step |
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185 | !! =2 annual global mean corrected from previous year |
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186 | !! =3 variable relaxation time to zero or to a time varying field |
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187 | !!---------------------------------------------------------------------- |
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188 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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189 | INTEGER, INTENT( in ) :: kn_fsbc ! |
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190 | INTEGER, INTENT( in ) :: kn_fwb ! ocean time-step index |
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191 | !! |
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192 | INTEGER :: inum ! temporary logical unit |
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193 | INTEGER :: ikty, iyear ! |
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194 | INTEGER :: ji, jj ! |
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195 | CHARACTER (len=32) :: clname |
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196 | REAL(wp) :: z_empad ! temporary scalars |
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197 | !!---------------------------------------------------------------------- |
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198 | ! |
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199 | IF( kt == nitend ) THEN |
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200 | ! |
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201 | IF(lwp) THEN |
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202 | WRITE(numout,*) |
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203 | WRITE(numout,*) 'sbc_fwb_adj : FreshWater Budget correction.' |
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204 | WRITE(numout,*) '~~~~~~~~~~~' |
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205 | ENDIF |
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206 | ! |
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207 | e1e2_i(:,:) = e1t(:,:) * e2t(:,:) * tmask_i(:,:) |
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208 | area = SUM( e1e2_i(:,:) ) |
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209 | IF( lk_mpp ) CALL mpp_sum( area ) ! sum over the global domain |
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210 | ! |
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211 | ! initialisation |
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212 | a_fwb_ad = 0.0_wp |
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213 | ENDIF |
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214 | z_empad = 0.0_wp |
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215 | |
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216 | SELECT CASE ( kn_fwb ) |
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217 | CASE ( 0 ) |
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218 | ! No Control |
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219 | ! |
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220 | CASE ( 1 ) ! global mean emp set to zero |
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221 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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222 | DO jj = 1, jpj |
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223 | DO ji = 1, jpi |
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224 | z_empad = z_empad - emps_ad(ji,jj) - emp_ad(ji,jj) |
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225 | END DO |
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226 | END DO |
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227 | IF( lk_mpp ) CALL mpp_sum( z_empad ) ! sum over the global domain |
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228 | z_empad = z_empad / area |
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229 | DO jj = 1, jpj |
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230 | DO ji = 1, jpi |
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231 | emp_ad(ji,jj) = emp_ad(ji,jj) + e1e2_i(ji,jj) * z_empad |
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232 | END DO |
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233 | END DO |
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234 | ENDIF |
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235 | ! |
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236 | CASE ( 2 ) ! emp budget adjusted from the previous year |
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237 | ! |
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238 | ! initialisation |
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239 | ikty = 365 * 86400 / rdttra(1) !!bug use of 365 days leap year or 360d year !!!!!!! |
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240 | ! correct the freshwater fluxes |
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241 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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242 | DO jj = nldj, nlej |
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243 | DO ji = nldi, nlei |
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244 | a_fwb_ad = a_fwb_ad + emps_ad(ji,jj) + emp_ad (ji,jj) |
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245 | END DO |
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246 | END DO |
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247 | ENDIF |
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248 | ! |
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249 | IF( MOD( kt, ikty ) == 0 ) THEN |
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250 | a_fwb_ad = a_fwb_ad * 1.e+3 / ( area * 86400. * 365. ) ! convert in Kg/m3/s = mm/s |
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251 | IF( lk_mpp ) CALL mpp_sum( a_fwb_ad ) ! sum over the global domain |
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252 | DO jj = 1, jpj |
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253 | DO ji = 1, jpi |
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254 | sshn_ad(ji,jj) = sshn_ad(ji,jj) + e1e2_i(ji,jj) * a_fwb_ad |
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255 | END DO |
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256 | END DO |
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257 | a_fwb_ad = 0.0_wp |
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258 | ENDIF |
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259 | ! |
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260 | CASE ( 3 ) |
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261 | ! |
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262 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not available for TAM yet , choose either 0/1/2' |
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263 | CALL ctl_stop( ctmp1 ) |
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264 | ! |
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265 | CASE DEFAULT ! you should never be there |
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266 | WRITE(ctmp1,*)'sbc_fwb_adj: nn_fwb=', kn_fwb, ' is not permitted for the FreshWater Budget correction, choose either 0/1/2' |
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267 | CALL ctl_stop( ctmp1 ) |
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268 | ! |
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269 | END SELECT |
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270 | ! |
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271 | END SUBROUTINE sbc_fwb_adj |
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272 | |
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273 | SUBROUTINE sbc_fwb_adj_tst ( kumadt ) |
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274 | !!----------------------------------------------------------------------- |
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275 | !! |
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276 | !! *** ROUTINE example_adj_tst *** |
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277 | !! |
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278 | !! ** Purpose : Test the adjoint routine. |
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279 | !! |
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280 | !! ** Method : Verify the scalar product |
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281 | !! |
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282 | !! ( L dx )^T W dy = dx^T L^T W dy |
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283 | !! |
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284 | !! where L = tangent routine |
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285 | !! L^T = adjoint routine |
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286 | !! W = diagonal matrix of scale factors |
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287 | !! dx = input perturbation (random field) |
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288 | !! dy = L dx |
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289 | !! |
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290 | !! History : |
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291 | !! ! 08-08 (A. Vidard) |
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292 | !!----------------------------------------------------------------------- |
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293 | !! * Modules used |
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294 | |
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295 | !! * Arguments |
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296 | INTEGER, INTENT(IN) :: & |
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297 | & kumadt ! Output unit |
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298 | |
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299 | !! * Local declarations |
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300 | INTEGER :: & |
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301 | & istp, & |
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302 | & jstp, & |
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303 | & ji, & ! dummy loop indices |
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304 | & jj, & |
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305 | & jk, & |
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306 | & jn_fwb |
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307 | INTEGER, DIMENSION(jpi,jpj) :: & |
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308 | & iseed_2d ! 2D seed for the random number generator |
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309 | REAL(KIND=wp) :: & |
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310 | & zsp1, & ! scalar product involving the tangent routine |
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311 | & zsp2 ! scalar product involving the adjoint routine |
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312 | REAL(KIND=wp), DIMENSION(:,:), ALLOCATABLE :: & |
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313 | & zemp_tlin , & ! Tangent input |
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314 | & zemps_tlin , & ! Tangent input |
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315 | & zssh_tlin , & ! Tangent input |
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316 | #if defined key_obc |
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317 | & zssh_tlout, zssh_adin, & |
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318 | #endif |
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319 | & zemp_tlout, & ! Tangent output |
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320 | & zemps_tlout, & ! Tangent output |
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321 | & zemp_adin , & ! Adjoint input |
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322 | & zemps_adin , & ! Adjoint input |
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323 | & zemp_adout, & ! Adjoint output |
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324 | & zemps_adout, & ! Adjoint output |
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325 | & zssh_adout, & ! Adjoint output |
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326 | & zr ! 3D random field |
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327 | CHARACTER(LEN=14) :: cl_name |
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328 | ! Allocate memory |
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329 | |
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330 | ALLOCATE( & |
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331 | #if defined key_obc |
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332 | & zssh_tlout( jpi,jpj), zssh_adin ( jpi,jpj), & |
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333 | #endif |
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334 | & zemp_tlin( jpi,jpj), & |
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335 | & zemps_tlin( jpi,jpj), & |
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336 | & zssh_tlin( jpi,jpj), & |
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337 | & zemp_tlout( jpi,jpj), & |
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338 | & zemps_tlout(jpi,jpj), & |
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339 | & zemp_adin( jpi,jpj), & |
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340 | & zemps_adin( jpi,jpj), & |
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341 | & zemp_adout( jpi,jpj), & |
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342 | & zemps_adout(jpi,jpj), & |
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343 | & zssh_adout( jpi,jpj), & |
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344 | & zr( jpi,jpj) & |
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345 | & ) |
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346 | !================================================================== |
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347 | ! 1) dx = ( emp_tl, emps_tl, ssh_tl ) and |
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348 | ! dy = ( emp_tl, emps_tl ) |
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349 | !================================================================== |
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350 | ! Test for time steps nit000 and nit000 + 1 (the matrix changes) |
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351 | |
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352 | DO jstp = nit000, nit000 + 2 |
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353 | istp = jstp |
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354 | IF ( jstp == nit000 +2 ) istp = nitend |
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355 | |
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356 | !-------------------------------------------------------------------- |
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357 | ! Reset the tangent and adjoint variables |
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358 | !-------------------------------------------------------------------- |
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359 | zemp_tlin (:,:) = 0.0_wp |
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360 | zemps_tlin (:,:) = 0.0_wp |
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361 | zssh_tlin (:,:) = 0.0_wp |
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362 | zemp_tlout (:,:) = 0.0_wp |
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363 | zemps_tlout(:,:) = 0.0_wp |
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364 | zemp_adin (:,:) = 0.0_wp |
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365 | zemps_adin (:,:) = 0.0_wp |
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366 | zemp_adout (:,:) = 0.0_wp |
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367 | zemps_adout(:,:) = 0.0_wp |
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368 | zssh_adout (:,:) = 0.0_wp |
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369 | zr(:,:) = 0.0_wp |
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370 | |
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371 | !-------------------------------------------------------------------- |
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372 | ! Initialize the tangent input with random noise: dx |
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373 | !-------------------------------------------------------------------- |
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374 | |
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375 | DO jj = 1, jpj |
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376 | DO ji = 1, jpi |
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377 | iseed_2d(ji,jj) = - ( 596035 + & |
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378 | & mig(ji) + ( mjg(jj) - 1 ) * jpiglo ) |
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379 | END DO |
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380 | END DO |
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381 | CALL grid_random( iseed_2d, zr, 'T', 0.0_wp, stdemp ) |
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382 | DO jj = nldj, nlej |
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383 | DO ji = nldi, nlei |
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384 | zemp_tlin(ji,jj) = zr(ji,jj) |
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385 | END DO |
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386 | END DO |
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387 | DO jj = 1, jpj |
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388 | DO ji = 1, jpi |
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389 | iseed_2d(ji,jj) = - ( 446251 + & |
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390 | & mig(ji) + ( mjg(jj) - 1 ) * jpiglo ) |
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391 | END DO |
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392 | END DO |
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393 | CALL grid_random( iseed_2d, zr, 'T', 0.0_wp, stdemp ) |
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394 | DO jj = nldj, nlej |
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395 | DO ji = nldi, nlei |
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396 | zemps_tlin(ji,jj) = zr(ji,jj) |
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397 | END DO |
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398 | END DO |
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399 | |
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400 | DO jj = 1, jpj |
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401 | DO ji = 1, jpi |
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402 | iseed_2d(ji,jj) = - ( 352678 + & |
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403 | & mig(ji) + ( mjg(jj) - 1 ) * jpiglo ) |
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404 | END DO |
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405 | END DO |
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406 | CALL grid_random( iseed_2d, zr, 'T', 0.0_wp, stdssh ) |
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407 | DO jj = nldj, nlej |
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408 | DO ji = nldi, nlei |
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409 | zssh_tlin(ji,jj) = zr(ji,jj) |
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410 | END DO |
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411 | END DO |
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412 | |
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413 | DO jn_fwb = 1, 2 |
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414 | |
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415 | a_fwb_tl = 0.0_wp |
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416 | a_fwb_ad = 0.0_wp |
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417 | sshn_ad (:,:) = 0.0_wp |
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418 | |
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419 | sshn_tl(:,:) = zssh_tlin (:,:) |
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420 | emps_tl(:,:) = zemps_tlin(:,:) |
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421 | emp_tl (:,:) = zemp_tlin (:,:) |
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422 | |
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423 | CALL sbc_fwb_tan( istp, jn_fwb, 1 ) |
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424 | |
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425 | zemps_tlout(:,:) = emps_tl(:,:) |
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426 | zemp_tlout (:,:) = emp_tl (:,:) |
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427 | #if defined key_obc |
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428 | zssh_tlout (:,:) = sshn_tl (:,:) |
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429 | #endif |
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430 | !----------------------------------------------------------------- |
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431 | ! Initialize the adjoint variables: dy^* = W dy |
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432 | !----------------------------------------------------------------- |
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433 | |
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434 | DO jj = nldj, nlej |
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435 | DO ji = nldi, nlei |
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436 | zemp_adin( ji,jj) = zemp_tlout( ji,jj) & |
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437 | & * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) & |
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438 | & * tmask(ji,jj,1) |
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439 | zemps_adin(ji,jj) = zemps_tlout(ji,jj) & |
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440 | & * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) & |
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441 | & * tmask(ji,jj,1) |
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442 | #if defined key_obc |
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443 | zssh_adin( ji,jj) = zssh_tlout( ji,jj) * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) * tmask(ji,jj,1) |
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444 | #endif |
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445 | END DO |
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446 | END DO |
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447 | |
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448 | !----------------------------------------------------------------- |
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449 | ! Compute the scalar product: ( L dx )^T W dy |
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450 | !----------------------------------------------------------------- |
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451 | |
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452 | zsp1 = DOT_PRODUCT( zemp_tlout, zemp_adin ) & |
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453 | & + DOT_PRODUCT( zemps_tlout, zemps_adin ) |
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454 | |
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455 | #if defined key_obc |
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456 | zsp1 = zsp1 + DOT_PRODUCT( zssh_tlout, zssh_adin ) |
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457 | #endif |
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458 | !----------------------------------------------------------------- |
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459 | ! Call the adjoint routine: dx^* = L^T dy^* |
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460 | !----------------------------------------------------------------- |
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461 | |
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462 | emp_ad (:,:) = zemp_adin (:,:) |
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463 | emps_ad(:,:) = zemps_adin(:,:) |
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464 | #if defined key_obc |
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465 | sshn_ad(:,:) = zssh_adin(:,:) |
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466 | #endif |
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467 | CALL sbc_fwb_adj ( istp, jn_fwb, 1 ) |
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468 | |
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469 | zemps_adout(:,:) = emps_ad(:,:) |
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470 | zemp_adout (:,:) = emp_ad (:,:) |
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471 | zssh_adout (:,:) = sshn_ad(:,:) |
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472 | |
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473 | zsp2 = DOT_PRODUCT( zemp_tlin, zemp_adout ) & |
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474 | & + DOT_PRODUCT( zssh_tlin, zssh_adout ) & |
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475 | & + DOT_PRODUCT( zemps_tlin, zemps_adout ) |
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476 | |
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477 | ! 14 char:'12345678901234' |
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478 | IF ( istp == nit000 ) THEN |
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479 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'1' |
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480 | ELSEIF ( istp == nit000 + 1 ) THEN |
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481 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'2' |
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482 | ELSEIF ( istp == nitend ) THEN |
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483 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'3' |
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484 | END IF |
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485 | ! WRITE (cl_name,"(A11,2x,i1)") 'sbc_fwb_adj',jn_fwb |
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486 | CALL prntst_adj( cl_name, kumadt, zsp1, zsp2 ) |
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487 | |
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488 | END DO |
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489 | |
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490 | END DO |
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491 | |
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492 | DEALLOCATE( & |
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493 | & zemp_tlin, & |
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494 | & zemps_tlin, & |
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495 | & zssh_tlin, & |
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496 | & zemp_tlout, & |
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497 | & zemps_tlout, & |
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498 | & zemp_adin, & |
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499 | & zemps_adin, & |
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500 | & zemp_adout, & |
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501 | & zemps_adout, & |
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502 | & zssh_adout, & |
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503 | & zr & |
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504 | & ) |
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505 | |
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506 | END SUBROUTINE sbc_fwb_adj_tst |
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507 | #endif |
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508 | !!====================================================================== |
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509 | END MODULE sbcfwb_tam |
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