1 | !!---------------------------------------------------------------------- |
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2 | !! *** ldftra_c2d.h90 *** |
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3 | !!---------------------------------------------------------------------- |
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4 | |
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5 | !!---------------------------------------------------------------------- |
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6 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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7 | !! $Id$ |
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8 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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9 | !!---------------------------------------------------------------------- |
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10 | |
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11 | SUBROUTINE ldf_tra_c2d( ld_print ) |
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12 | !!---------------------------------------------------------------------- |
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13 | !! *** ROUTINE ldftra_c2d *** |
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14 | !! |
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15 | !! ** Purpose : initializations of horizontally non uniform eddy |
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16 | !! diffusivity coefficients |
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17 | !! |
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18 | !! ** Method : |
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19 | !! biharmonic operator : ahtt = defined at T-level |
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20 | !! ahtu,ahtv,ahtw never used |
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21 | !! harmonic operator (ahtt never used) |
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22 | !! iso-model level : ahtu, ahtv defined at u-, v-points |
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23 | !! isopycnal : ahtu, ahtv, ahtw defined at u-, v-, w-pts |
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24 | !! or geopotential |
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25 | !! eddy induced velocity |
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26 | !! always harmonic : aeiu, aeiv, aeiw defined at u-, v-, w-pts |
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27 | !! |
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28 | !!---------------------------------------------------------------------- |
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29 | !! * Arguments |
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30 | LOGICAL, INTENT (in) :: ld_print ! If true, print arrays in numout |
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31 | |
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32 | !! * Local variables |
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33 | INTEGER :: ji, jj ! dummy loop indices |
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34 | # if defined key_orca_r4 |
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35 | INTEGER :: i1, i2, j1, j2 |
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36 | # endif |
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37 | REAL(wp) :: za00, zd_max, zeumax, zevmax, zetmax |
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38 | |
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39 | !!---------------------------------------------------------------------- |
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40 | |
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41 | IF( lk_traldf_eiv ) THEN |
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42 | IF(lwp) WRITE(numout,*) |
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43 | IF(lwp) WRITE(numout,*) ' ldf_tra_c2d : 2D eddy diffusivity and eddy' |
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44 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~ -- induced velocity coefficients' |
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45 | IF(lwp) WRITE(numout,*) |
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46 | ELSE |
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47 | IF(lwp) WRITE(numout,*) |
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48 | IF(lwp) WRITE(numout,*) ' ldf_tra2d : 2D eddy diffusivity coefficient' |
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49 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~ --' |
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50 | IF(lwp) WRITE(numout,*) |
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51 | ENDIF |
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52 | |
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53 | zd_max = MAX( MAXVAL( e1t(:,:) ), MAXVAL( e2t(:,:) ) ) |
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54 | IF( lk_mpp ) CALL mpp_max( zd_max ) ! max over the global domain |
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55 | |
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56 | ! harmonic operator : (U-, V-, W-points) |
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57 | ! ================== |
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58 | IF( ln_traldf_lap ) THEN |
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59 | |
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60 | za00 = aht0 / zd_max |
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61 | |
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62 | DO jj = 1, jpj |
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63 | DO ji = 1, jpi |
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64 | zeumax = MAX( e1u(ji,jj), e2u(ji,jj) ) |
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65 | zevmax = MAX( e1v(ji,jj), e2v(ji,jj) ) |
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66 | zetmax = MAX( e1t(ji,jj), e2t(ji,jj) ) |
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67 | ahtu(ji,jj) = za00 * zeumax ! set ahtu = ahtv at u- and v-points, |
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68 | ahtv(ji,jj) = za00 * zevmax ! and ahtw at w-point (idem T-point) |
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69 | ahtw(ji,jj) = za00 * zetmax ! |
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70 | END DO |
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71 | END DO |
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72 | |
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73 | CALL lbc_lnk( ahtu, 'U', 1. ) ! Lateral boundary conditions |
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74 | CALL lbc_lnk( ahtv, 'V', 1. ) ! (no change of sign) |
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75 | CALL lbc_lnk( ahtw, 'W', 1. ) |
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76 | |
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77 | ! Special case for ORCA R2 and R4 configurations (overwrite the value of ahtu ahtv ahtw) |
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78 | ! ============================================== |
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79 | IF( cp_cfg == "orca" .AND. ( jp_cfg == 2 .OR. jp_cfg == 4 ) ) THEN |
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80 | ahtu(:,:) = aht0 ! set ahtu = ahtv at u- and v-points, |
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81 | ahtv(:,:) = aht0 ! and ahtw at w-point |
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82 | ahtw(:,:) = aht0 ! (here : no space variation) |
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83 | IF(lwp) WRITE(numout,*) ' ORCA R2 or R4 case' |
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84 | IF(lwp) WRITE(numout,*) ' Constant values used for eddy diffusivity coefficients' |
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85 | IF(lwp) WRITE(numout,*) ' Variation lat/lon only for eddy induced velocity coefficients' |
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86 | ENDIF |
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87 | |
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88 | ! Control print |
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89 | IF( lwp .AND. ld_print ) THEN |
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90 | WRITE(numout,*) |
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91 | WRITE(numout,*) 'inildf: ahtu array' |
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92 | CALL prihre( ahtu, jpi, jpj, 1, jpi, 1, & |
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93 | & 1, jpj, 1, 1.e-3, numout ) |
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94 | WRITE(numout,*) |
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95 | WRITE(numout,*) 'inildf: ahtv array' |
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96 | CALL prihre( ahtv, jpi, jpj, 1, jpi, 1, & |
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97 | & 1, jpj, 1, 1.e-3, numout ) |
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98 | WRITE(numout,*) |
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99 | WRITE(numout,*) 'inildf: ahtw array' |
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100 | CALL prihre( ahtw, jpi, jpj, 1, jpi, 1, & |
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101 | & 1, jpj, 1, 1.e-3, numout ) |
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102 | ENDIF |
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103 | ENDIF |
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104 | |
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105 | ! biharmonic operator : (T-point) |
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106 | ! ==================== |
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107 | IF( ln_traldf_bilap ) THEN |
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108 | ! (USER: modify ahtt following your desiderata) |
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109 | ! Here: ahm is proportional to the cube of the maximum of the gridspacing |
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110 | ! in the to horizontal direction |
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111 | |
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112 | zd_max = MAX( MAXVAL( e1t(:,:) ), MAXVAL( e2t(:,:) ) ) |
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113 | IF( lk_mpp ) CALL mpp_max( zd_max ) ! max over the global domain |
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114 | |
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115 | za00 = aht0 / ( zd_max * zd_max * zd_max ) |
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116 | DO jj = 1, jpj |
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117 | DO ji = 1, jpi |
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118 | zetmax = MAX( e1t(ji,jj), e2t(ji,jj) ) |
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119 | ahtt(ji,jj) = za00 * zetmax * zetmax * zetmax ! set ahtt at T-point |
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120 | END DO |
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121 | END DO |
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122 | |
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123 | CALL lbc_lnk( ahtt, 'T', 1. ) ! Lateral boundary conditions on ( ahtt ) |
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124 | |
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125 | ! Control print |
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126 | IF( lwp .AND. ld_print ) THEN |
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127 | WRITE(numout,*) |
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128 | WRITE(numout,*) 'inildf: 2D ahtt array' |
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129 | CALL prihre( ahtt, jpi, jpj, 1, jpi, 1, & |
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130 | & 1, jpj, 1, 1.e-3, numout ) |
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131 | ENDIF |
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132 | ENDIF |
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133 | |
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134 | # if defined key_traldf_eiv |
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135 | ! set aeiu = aeiv at u- and v-points, and aeiw at w-point (idem T-point) |
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136 | ! (here no space variation) |
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137 | aeiu(:,:) = aeiv0 |
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138 | aeiv(:,:) = aeiv0 |
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139 | aeiw(:,:) = aeiv0 |
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140 | |
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141 | IF( cp_cfg == "orca" .AND. jp_cfg == 4 ) THEN |
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142 | ! ! Cancel eiv in Gibraltar strait |
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143 | aeiu( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0 |
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144 | aeiv( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0 |
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145 | aeiw( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0 |
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146 | ! ! Cancel eiv in Mediterrannean sea |
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147 | aeiu( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0 |
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148 | aeiv( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0 |
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149 | aeiw( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0 |
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150 | ENDIF |
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151 | |
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152 | ! Lateral boundary conditions on ( aeiu, aeiv, aeiw ) |
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153 | CALL lbc_lnk( aeiu, 'U', 1. ) |
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154 | CALL lbc_lnk( aeiv, 'V', 1. ) |
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155 | CALL lbc_lnk( aeiw, 'W', 1. ) |
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156 | |
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157 | ! Control print |
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158 | IF( lwp .AND. ld_print ) THEN |
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159 | WRITE(numout,*) |
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160 | WRITE(numout,*) 'inildf: aeiu array' |
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161 | CALL prihre(aeiu,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
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162 | WRITE(numout,*) |
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163 | WRITE(numout,*) 'inildf: aeiv array' |
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164 | CALL prihre(aeiv,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
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165 | WRITE(numout,*) |
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166 | WRITE(numout,*) 'inildf: aeiw array' |
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167 | CALL prihre(aeiw,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
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168 | ENDIF |
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169 | |
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170 | # endif |
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171 | |
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172 | END SUBROUTINE ldf_tra_c2d |
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