1 | !!---------------------------------------------------------------------- |
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2 | !! *** tau_coupled.h90 *** |
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3 | !!---------------------------------------------------------------------- |
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4 | |
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5 | !!---------------------------------------------------------------------- |
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6 | !! tau : update the surface stress - coupled ocean-atmosphere |
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7 | !! case, without sea-ice |
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8 | !!---------------------------------------------------------------------- |
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9 | !! * Modules used |
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10 | USE ioipsl ! NetCDF library |
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11 | !!---------------------------------------------------------------------- |
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12 | !! OPA 9.0 , LODYC-IPSL (2003) |
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13 | !!---------------------------------------------------------------------- |
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14 | |
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15 | CONTAINS |
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16 | |
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17 | SUBROUTINE tau( kt ) |
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18 | !!--------------------------------------------------------------------- |
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19 | !! *** ROUTINE tau *** |
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20 | !! |
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21 | !! ** Purpose : provide to the ocean the stress at each time step |
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22 | !! |
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23 | !! ** Method : Read wind stress from a coupled Atmospheric model |
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24 | !! - horizontal interpolation is done |
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25 | !! They are given in the geographic referential |
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26 | !! (zonal and meridional components at both U- and V-points) |
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27 | !! CAUTION: never mask the surface stress field ! |
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28 | !! |
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29 | !! ** Action : update at each time-step the two components of the |
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30 | !! surface stress in both (i,j) and geographical referencial |
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31 | !! |
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32 | !! References : The OASIS User Guide, Version 2.0, CERFACS/TR 95/46 |
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33 | !! |
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34 | !! History : |
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35 | !! 7.0 ! 94-03 (L. Terray) Original code |
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36 | !! ! 96-07 (Laurent TERRAY) OASIS 2 Version |
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37 | !! ! 96-11 (Eric Guilyardi) horizontal interpolation |
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38 | !! ! 98-04 (M.A Foujols, S. Valcke, M. Imbard) OASIS2.2 |
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39 | !! 8.5 ! 02-11 (G. Madec) F90: Free form and module |
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40 | !!---------------------------------------------------------------------- |
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41 | !! * Arguments |
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42 | INTEGER, INTENT( in ) :: kt ! ocean time step |
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43 | |
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44 | !! * Local declarations |
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45 | INTEGER :: ji,jj,jf |
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46 | INTEGER :: itm1,isize,iflag,icpliter,info,inuread,index |
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47 | REAL(wp), DIMENSION(jpidta,jpjdta) :: & |
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48 | ztaux , ztauxv, & ! ??? |
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49 | ztauy , ztauyu ! |
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50 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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51 | ztauxg, ztauyg ! ??? |
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52 | |
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53 | ! Addition for SIPC CASE |
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54 | CHARACTER (len=3) :: clmodinf ! Header or not |
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55 | CHARACTER (len=3) :: cljobnam_r ! Experiment name in the field brick, if any |
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56 | INTEGER ,DIMENSION(3) :: infos ! infos in the field brick, if any |
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57 | !!--------------------------------------------------------------------- |
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58 | |
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59 | ! 0. Initialization |
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60 | ! ----------------- |
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61 | |
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62 | isize = jpiglo * jpjglo |
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63 | itm1 = ( kt - nit000 + 1 ) - 1 |
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64 | |
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65 | ! 1. Reading wind stress from coupler |
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66 | ! ----------------------------------- |
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67 | |
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68 | IF( MOD(kt,nexco) == 1 )THEN |
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69 | |
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70 | ! Test what kind of message passing we are using |
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71 | |
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72 | IF (cchan == 'PIPE') THEN |
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73 | |
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74 | ! UNIT number for fields |
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75 | |
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76 | inuread = 99 |
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77 | |
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78 | ! exchanges from to atmosphere=CPL to ocean |
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79 | |
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80 | DO jf = 1, ntauc2o |
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81 | ! CALL PIPE_Model_Recv(cpl_readtau(jf), icpliter, numout) |
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82 | OPEN (inuread, FILE=cpl_f_readtau(jf), FORM='UNFORMATTED') |
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83 | IF( jf == 1 ) CALL locread( cpl_readtau(jf), ztaux , isize, inuread, iflag, numout ) |
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84 | IF( jf == 2 ) CALL locread( cpl_readtau(jf), ztauxv, isize, inuread, iflag, numout ) |
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85 | IF( jf == 3 ) CALL locread( cpl_readtau(jf), ztauy , isize, inuread, iflag, numout ) |
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86 | IF( jf == 4 ) CALL locread( cpl_readtau(jf), ztauyu, isize, inuread, iflag, numout ) |
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87 | CLOSE (inuread) |
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88 | END DO |
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89 | |
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90 | ELSE IF( cchan == 'SIPC' ) THEN |
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91 | |
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92 | ! Define IF a header must be encapsulated within the field brick : |
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93 | clmodinf = 'NOT' ! as $MODINFO in namcouple |
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94 | ! |
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95 | ! reading of input field zonal wind stress SOZOTAUX |
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96 | |
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97 | index = 1 |
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98 | ! CALL SIPC_Read_Model(index, isize, clmodinf, cljobnam_r, infos, ztaux) |
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99 | |
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100 | ! reading of input field meridional wind stress SOZOTAU2 (at v point) |
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101 | |
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102 | index = 2 |
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103 | ! CALL SIPC_Read_Model(index, isize, clmodinf, cljobnam_r, infos, ztaux2) |
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104 | |
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105 | ! reading of input field zonal wind stress SOMETAUY |
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106 | |
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107 | index = 3 |
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108 | ! CALL SIPC_Read_Model(index, isize, clmodinf, cljobnam_r, infos, ztauy) |
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109 | |
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110 | ! reading of input field meridional wind stress SOMETAU2 (at u point) |
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111 | |
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112 | index = 4 |
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113 | ! CALL SIPC_Read_Model(index, isize, clmodinf, cljobnam_r, infos, ztauy2) |
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114 | ! |
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115 | |
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116 | ELSE IF( cchan == 'CLIM' ) THEN |
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117 | ! |
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118 | |
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119 | ! exchanges from atmosphere=CPL to ocean |
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120 | |
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121 | DO jf = 1, ntauc2o |
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122 | IF (jf == 1) CALL CLIM_Import ( cpl_readtau(jf), itm1, ztaux , info ) |
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123 | IF (jf == 2) CALL CLIM_Import ( cpl_readtau(jf), itm1, ztauxv, info ) |
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124 | IF (jf == 3) CALL CLIM_Import ( cpl_readtau(jf), itm1, ztauy , info ) |
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125 | IF (jf == 4) CALL CLIM_Import ( cpl_readtau(jf), itm1, ztauyu, info ) |
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126 | IF ( info /= CLIM_Ok) THEN |
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127 | WRITE(numout,*)'Pb in reading ', cpl_readtau(jf), jf |
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128 | WRITE(numout,*)'Couplage itm1 is = ',itm1 |
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129 | WRITE(numout,*)'CLIM error code is = ', info |
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130 | WRITE(numout,*)'STOP in Fromcpl' |
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131 | STOP 'tau.coupled.h' |
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132 | ENDIF |
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133 | END DO |
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134 | |
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135 | ENDIF |
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136 | |
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137 | ! 2. CHANGING DATA GRID COORDINATES --> GLOBAL GRID COORDINATES |
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138 | ! ------------------------------------------------------------- |
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139 | |
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140 | DO jj = 1, jpj |
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141 | DO ji = 1, jpi |
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142 | tauxg (ji,jj) = ztaux ( mig(ji), mjg(jj) ) |
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143 | tauyg (ji,jj) = ztauy ( mig(ji), mjg(jj) ) |
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144 | ztauxg(ji,jj) = ztauxv( mig(ji), mjg(jj) ) |
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145 | ztauyg(ji,jj) = ztauyu( mig(ji), mjg(jj) ) |
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146 | END DO |
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147 | END DO |
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148 | |
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149 | CALL repcmo( tauxg, ztauyg, ztauxg, tauyg, taux, tauy, kt ) |
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150 | |
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151 | ENDIF |
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152 | |
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153 | END SUBROUTINE flx |
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