1 | MODULE obcdyn_bt |
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2 | #if ( defined key_dynspg_ts || defined key_dynspg_exp ) & defined key_obc |
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3 | !!================================================================================= |
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4 | !! *** MODULE obcdyn_bt *** |
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5 | !! Ocean dynamics: Radiation/prescription of sea surface heights |
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6 | !! on each open boundary |
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7 | !!================================================================================= |
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8 | |
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9 | !!--------------------------------------------------------------------------------- |
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10 | !! obc_dyn_bt : call the subroutine for each open boundary |
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11 | !! obc_dyn_bt_east : Flather's algorithm at the east open boundary |
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12 | !! obc_dyn_bt_west : Flather's algorithm at the west open boundary |
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13 | !! obc_dyn_bt_north : Flather's algorithm at the north open boundary |
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14 | !! obc_dyn_bt_south : Flather's algorithm at the south open boundary |
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15 | !!---------------------------------------------------------------------------------- |
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16 | |
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17 | !!---------------------------------------------------------------------------------- |
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18 | !! * Modules used |
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19 | USE oce ! ocean dynamics and tracers |
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20 | USE dom_oce ! ocean space and time domain |
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21 | USE phycst ! physical constants |
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22 | USE obc_oce ! ocean open boundary conditions |
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23 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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24 | USE lib_mpp ! distributed memory computing |
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25 | USE obccli ! ocean open boundary conditions: climatology |
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26 | USE in_out_manager ! I/O manager |
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27 | USE dynspg_oce ! surface pressure gradient (free surface with time-splitting) |
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28 | |
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29 | IMPLICIT NONE |
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30 | PRIVATE |
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31 | |
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32 | !! * Accessibility |
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33 | PUBLIC obc_dyn_bt ! routine called in dynnxt (explicit free surface case) |
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34 | |
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35 | !!--------------------------------------------------------------------------------- |
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36 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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37 | !! $Header$ |
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38 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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39 | !!---------------------------------------------------------------------- |
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40 | |
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41 | CONTAINS |
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42 | |
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43 | SUBROUTINE obc_dyn_bt ( kt ) |
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44 | !!------------------------------------------------------------------------------ |
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45 | !! SUBROUTINE obc_dyn_bt |
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46 | !! *********************** |
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47 | !! ** Purpose : |
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48 | !! Apply Flather's algorithm at open boundaries for the explicit |
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49 | !! free surface case and free surface case with time-splitting |
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50 | !! |
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51 | !! This routine is called in dynnxt.F routine and updates ua, va and sshn. |
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52 | !! |
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53 | !! The logical variable lp_obc_east, and/or lp_obc_west, and/or lp_obc_north, |
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54 | !! and/or lp_obc_south allow the user to determine which boundary is an |
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55 | !! open one (must be done in the param_obc.h90 file). |
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56 | !! |
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57 | !! ** Reference : |
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58 | !! Flather, R. A., 1976, Mem. Soc. R. Sci. Liege, Ser. 6, 10, 141-164 |
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59 | !! |
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60 | !! History : |
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61 | !! 9.0 ! 05-12 (V. Garnier) original |
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62 | !!---------------------------------------------------------------------- |
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63 | !! * Arguments |
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64 | INTEGER, INTENT( in ) :: kt |
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65 | |
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66 | !!---------------------------------------------------------------------- |
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67 | |
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68 | IF( lp_obc_east ) CALL obc_dyn_bt_east |
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69 | IF( lp_obc_west ) CALL obc_dyn_bt_west |
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70 | IF( lp_obc_north ) CALL obc_dyn_bt_north |
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71 | IF( lp_obc_south ) CALL obc_dyn_bt_south |
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72 | |
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73 | IF( lk_mpp ) THEN |
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74 | IF( kt >= nit000+3 .AND. ln_rstart ) THEN |
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75 | CALL lbc_lnk( sshb, 'T', 1. ) |
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76 | CALL lbc_lnk( ub , 'U', -1. ) |
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77 | CALL lbc_lnk( vb , 'V', -1. ) |
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78 | END IF |
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79 | CALL lbc_lnk( sshn, 'T', 1. ) |
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80 | CALL lbc_lnk( ua , 'U', -1. ) |
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81 | CALL lbc_lnk( va , 'V', -1. ) |
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82 | ENDIF |
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83 | |
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84 | END SUBROUTINE obc_dyn_bt |
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85 | |
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86 | # if defined key_dynspg_exp |
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87 | SUBROUTINE obc_dyn_bt_east |
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88 | !!------------------------------------------------------------------------------ |
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89 | !! *** SUBROUTINE obc_dyn_bt_east *** |
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90 | !! |
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91 | !! ** Purpose : |
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92 | !! Apply Flather's algorithm on east OBC velocities ua, va |
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93 | !! Fix sea surface height (sshn) on east open boundary |
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94 | !! The logical lfbceast must be .TRUE. |
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95 | !! |
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96 | !! History : |
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97 | !! 9.0 ! 05-12 (V. Garnier) original |
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98 | !!------------------------------------------------------------------------------ |
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99 | !! * Local declaration |
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100 | INTEGER :: ji, jj, jk ! dummy loop indices |
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101 | REAL(wp) :: z05cx, ztau, zin |
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102 | !!------------------------------------------------------------------------------ |
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103 | |
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104 | DO ji = nie0, nie1 |
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105 | DO jk = 1, jpkm1 |
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106 | DO jj = 1, jpj |
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107 | ua(ji,jj,jk) = ua(ji,jj,jk) + sqrt( grav*hur (ji,jj) ) & |
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108 | & * ( ( sshn(ji,jj) + sshn(ji+1,jj) ) * 0.5 & |
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109 | & - sshfoe(jj) ) * uemsk(jj,jk) |
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110 | END DO |
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111 | END DO |
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112 | END DO |
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113 | DO ji = nie0p1, nie1p1 |
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114 | DO jj = 1, jpj |
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115 | sshn(ji,jj) = sshn(ji,jj) * (1.-temsk(jj,1)) + temsk(jj,1)*sshfoe(jj) |
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116 | END DO |
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117 | END DO |
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118 | |
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119 | END SUBROUTINE obc_dyn_bt_east |
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120 | |
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121 | |
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122 | SUBROUTINE obc_dyn_bt_west |
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123 | !!------------------------------------------------------------------------------ |
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124 | !! *** SUBROUTINE obc_dyn_bt_west *** |
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125 | !! |
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126 | !! ** Purpose : |
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127 | !! Apply Flather algorithm on west OBC velocities ua, va |
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128 | !! Fix sea surface height (sshn) on west open boundary |
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129 | !! The logical lfbcwest must be .TRUE. |
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130 | !! |
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131 | !! History : |
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132 | !! 9.0 ! 05-12 (V. Garnier) original |
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133 | !!------------------------------------------------------------------------------ |
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134 | !! * Local declaration |
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135 | INTEGER :: ji, jj, jk ! dummy loop indices |
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136 | REAL(wp) :: z05cx, ztau, zin |
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137 | !!------------------------------------------------------------------------------ |
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138 | |
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139 | DO ji = niw0, niw1 |
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140 | DO jk = 1, jpkm1 |
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141 | DO jj = 1, jpj |
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142 | ua(ji,jj,jk) = ua(ji,jj,jk) - sqrt( grav*hur (ji,jj) ) & |
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143 | & * ( ( sshn(ji,jj) + sshn(ji+1,jj) ) * 0.5 & |
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144 | & - sshfow(jj) ) * uwmsk(jj,jk) |
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145 | END DO |
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146 | END DO |
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147 | DO jj = 1, jpj |
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148 | sshn(ji,jj) = sshn(ji,jj) * (1.-twmsk(jj,1)) + twmsk(jj,1)*sshfow(jj) |
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149 | END DO |
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150 | END DO |
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151 | |
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152 | END SUBROUTINE obc_dyn_bt_west |
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153 | |
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154 | SUBROUTINE obc_dyn_bt_north |
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155 | !!------------------------------------------------------------------------------ |
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156 | !! *** SUBROUTINE obc_dyn_bt_north *** |
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157 | !! |
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158 | !! ** Purpose : |
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159 | !! Apply Flather algorithm on north OBC velocities ua, va |
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160 | !! Fix sea surface height (sshn) on north open boundary |
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161 | !! The logical lfbcnorth must be .TRUE. |
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162 | !! |
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163 | !! History : |
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164 | !! 9.0 ! 05-12 (V. Garnier) original |
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165 | !!------------------------------------------------------------------------------ |
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166 | !! * Local declaration |
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167 | INTEGER :: ji, jj, jk ! dummy loop indices |
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168 | REAL(wp) :: z05cx, ztau, zin |
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169 | !!------------------------------------------------------------------------------ |
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170 | |
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171 | DO jj = njn0, njn1 |
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172 | DO jk = 1, jpkm1 |
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173 | DO ji = 1, jpi |
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174 | va(ji,jj,jk) = va(ji,jj,jk) + sqrt( grav*hvr (ji,jj) ) & |
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175 | & * ( ( sshn(ji,jj) + sshn(ji,jj+1) ) * 0.5 & |
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176 | & - sshfon(ji) ) * vnmsk(ji,jk) |
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177 | END DO |
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178 | END DO |
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179 | END DO |
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180 | DO jj = njn0p1, njn1p1 |
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181 | DO ji = 1, jpi |
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182 | sshn(ji,jj)= sshn(ji,jj) * (1.-tnmsk(ji,1)) + sshfon(ji)*tnmsk(ji,1) |
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183 | END DO |
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184 | END DO |
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185 | |
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186 | END SUBROUTINE obc_dyn_bt_north |
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187 | |
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188 | SUBROUTINE obc_dyn_bt_south |
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189 | !!------------------------------------------------------------------------------ |
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190 | !! *** SUBROUTINE obc_dyn_bt_south *** |
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191 | !! |
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192 | !! ** Purpose : |
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193 | !! Apply Flather algorithm on south OBC velocities ua, va |
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194 | !! Fix sea surface height (sshn) on south open boundary |
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195 | !! The logical lfbcsouth must be .TRUE. |
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196 | !! |
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197 | !! History : |
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198 | !! 9.0 ! 05-12 (V. Garnier) original |
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199 | !!------------------------------------------------------------------------------ |
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200 | !! * Local declaration |
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201 | INTEGER :: ji, jj, jk ! dummy loop indices |
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202 | REAL(wp) :: z05cx, ztau, zin |
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203 | |
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204 | !!------------------------------------------------------------------------------ |
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205 | |
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206 | DO jj = njs0, njs1 |
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207 | DO jk = 1, jpkm1 |
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208 | DO ji = 1, jpi |
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209 | va(ji,jj,jk) = va(ji,jj,jk) - sqrt( grav*hvr (ji,jj) ) & |
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210 | & * ( ( sshn(ji,jj) + sshn(ji,jj+1) ) * 0.5 & |
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211 | & - sshfos(ji) ) * vsmsk(ji,jk) |
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212 | END DO |
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213 | END DO |
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214 | DO ji = 1, jpi |
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215 | sshn(ji,jj)= sshn(ji,jj) * (1.-tsmsk(ji,1)) + tsmsk(ji,1) * sshfos(ji) |
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216 | END DO |
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217 | END DO |
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218 | |
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219 | END SUBROUTINE obc_dyn_bt_south |
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220 | |
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221 | # elif defined key_dynspg_ts |
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222 | |
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223 | SUBROUTINE obc_dyn_bt_east |
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224 | !!------------------------------------------------------------------------------ |
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225 | !! *** SUBROUTINE obc_dyn_bt_east *** |
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226 | !! |
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227 | !! ** Purpose : |
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228 | !! Apply Flather's algorithm on east OBC velocities ua, va |
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229 | !! Fix sea surface height (sshn) on east open boundary |
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230 | !! The logical lfbceast must be .TRUE. |
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231 | !! |
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232 | !! History : |
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233 | !! 9.0 ! 05-12 (V. Garnier) original |
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234 | !!------------------------------------------------------------------------------ |
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235 | !! * Local declaration |
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236 | INTEGER :: ji, jj, jk ! dummy loop indices |
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237 | REAL(wp) :: z05cx, ztau, zin |
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238 | !!------------------------------------------------------------------------------ |
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239 | |
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240 | DO ji = nie0, nie1 |
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241 | DO jk = 1, jpkm1 |
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242 | DO jj = 1, jpj |
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243 | ua(ji,jj,jk) = ( ua(ji,jj,jk) + sshfoe_b(ji,jj) ) * uemsk(jj,jk) |
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244 | END DO |
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245 | END DO |
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246 | END DO |
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247 | DO ji = nie0p1, nie1p1 |
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248 | DO jj = 1, jpj |
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249 | sshn(ji,jj) = sshn(ji,jj) * (1.-temsk(jj,1)) + temsk(jj,1)*sshn_b(ji,jj) |
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250 | END DO |
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251 | END DO |
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252 | |
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253 | END SUBROUTINE obc_dyn_bt_east |
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254 | |
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255 | SUBROUTINE obc_dyn_bt_west |
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256 | !!------------------------------------------------------------------------------ |
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257 | !! *** SUBROUTINE obc_dyn_bt_west *** |
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258 | !! |
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259 | !! ** Purpose : |
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260 | !! ** Purpose : |
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261 | !! Apply Flather algorithm on west OBC velocities ua, va |
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262 | !! Fix sea surface height (sshn) on west open boundary |
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263 | !! The logical lfbcwest must be .TRUE. |
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264 | !! |
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265 | !! History : |
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266 | !! 9.0 ! 05-12 (V. Garnier) original |
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267 | !!------------------------------------------------------------------------------ |
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268 | !! * Local declaration |
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269 | INTEGER :: ji, jj, jk ! dummy loop indices |
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270 | REAL(wp) :: z05cx, ztau, zin |
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271 | !!------------------------------------------------------------------------------ |
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272 | |
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273 | DO ji = niw0, niw1 |
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274 | DO jk = 1, jpkm1 |
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275 | DO jj = 1, jpj |
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276 | ua(ji,jj,jk) = ( ua(ji,jj,jk) + sshfow_b(ji,jj) ) * uwmsk(jj,jk) |
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277 | END DO |
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278 | END DO |
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279 | DO jj = 1, jpj |
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280 | sshn(ji,jj) = sshn(ji,jj) * (1.-twmsk(jj,1)) + twmsk(jj,1)*sshn_b(ji,jj) |
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281 | END DO |
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282 | END DO |
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283 | |
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284 | END SUBROUTINE obc_dyn_bt_west |
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285 | |
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286 | SUBROUTINE obc_dyn_bt_north |
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287 | !!------------------------------------------------------------------------------ |
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288 | !! SUBROUTINE obc_dyn_bt_north |
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289 | !! ************************* |
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290 | !! ** Purpose : |
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291 | !! Apply Flather algorithm on north OBC velocities ua, va |
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292 | !! Fix sea surface height (sshn) on north open boundary |
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293 | !! The logical lfbcnorth must be .TRUE. |
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294 | !! |
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295 | !! History : |
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296 | !! 9.0 ! 05-12 (V. Garnier) original |
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297 | !!------------------------------------------------------------------------------ |
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298 | !! * Local declaration |
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299 | INTEGER :: ji, jj, jk ! dummy loop indices |
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300 | REAL(wp) :: z05cx, ztau, zin |
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301 | !!------------------------------------------------------------------------------ |
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302 | |
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303 | DO jj = njn0, njn1 |
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304 | DO jk = 1, jpkm1 |
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305 | DO ji = 1, jpi |
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306 | va(ji,jj,jk) = ( va(ji,jj,jk) + sshfon_b(ji,jj) ) * vnmsk(jj,jk) |
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307 | END DO |
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308 | END DO |
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309 | END DO |
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310 | DO jj = njn0p1, njn1p1 |
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311 | DO ji = 1, jpi |
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312 | sshn(ji,jj)= sshn(ji,jj) * (1.-tnmsk(ji,1)) + sshn_b(ji,jj)*tnmsk(ji,1) |
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313 | END DO |
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314 | END DO |
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315 | |
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316 | END SUBROUTINE obc_dyn_bt_north |
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317 | |
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318 | SUBROUTINE obc_dyn_bt_south |
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319 | !!------------------------------------------------------------------------------ |
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320 | !! SUBROUTINE obc_dyn_bt_south |
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321 | !! ************************* |
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322 | !! ** Purpose : |
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323 | !! Apply Flather algorithm on south OBC velocities ua, va |
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324 | !! Fix sea surface height (sshn) on south open boundary |
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325 | !! The logical lfbcsouth must be .TRUE. |
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326 | !! |
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327 | !! History : |
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328 | !! 9.0 ! 05-12 (V. Garnier) original |
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329 | !!------------------------------------------------------------------------------ |
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330 | !! * Local declaration |
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331 | INTEGER :: ji, jj, jk ! dummy loop indices |
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332 | REAL(wp) :: z05cx, ztau, zin |
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333 | |
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334 | !!------------------------------------------------------------------------------ |
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335 | |
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336 | DO jj = njs0, njs1 |
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337 | DO jk = 1, jpkm1 |
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338 | DO ji = 1, jpi |
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339 | va(ji,jj,jk) = ( va(ji,jj,jk) + sshfos_b(ji,jj) ) * vsmsk(jj,jk) |
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340 | END DO |
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341 | END DO |
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342 | DO ji = 1, jpi |
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343 | sshn(ji,jj)= sshn(ji,jj) * (1.-tsmsk(ji,1)) + tsmsk(ji,1) * sshn_b(ji,jj) |
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344 | END DO |
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345 | END DO |
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346 | |
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347 | END SUBROUTINE obc_dyn_bt_south |
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348 | |
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349 | # endif |
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350 | #else |
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351 | !!================================================================================= |
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352 | !! *** MODULE obcdyn_bt *** |
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353 | !! Ocean dynamics: Radiation of velocities on each open boundary |
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354 | !!================================================================================= |
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355 | CONTAINS |
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356 | |
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357 | SUBROUTINE obc_dyn_bt |
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358 | ! No open boundaries ==> empty routine |
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359 | END SUBROUTINE obc_dyn_bt |
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360 | #endif |
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361 | |
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362 | END MODULE obcdyn_bt |
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