1 | MODULE trcrad |
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2 | !!====================================================================== |
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3 | !! *** MODULE trcrad *** |
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4 | !! Ocean passive tracers: correction of negative concentrations |
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5 | !!====================================================================== |
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6 | #if defined key_passivetrc |
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7 | !!---------------------------------------------------------------------- |
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8 | !! trc_rad : correction of negative concentrations |
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9 | !!---------------------------------------------------------------------- |
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10 | !! * Modules used |
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11 | USE oce_trc ! ocean dynamics and tracers variables |
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12 | USE trc ! ocean passive tracers variables |
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13 | |
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14 | IMPLICIT NONE |
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15 | PRIVATE |
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16 | |
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17 | !! * Routine accessibility |
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18 | PUBLIC trc_rad ! routine called by trcstp.F90 |
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19 | !! * Substitutions |
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20 | # include "passivetrc_substitute.h90" |
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21 | !!---------------------------------------------------------------------- |
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22 | !! OPA 9.0 , LODYC-IPSL (2003) |
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23 | !!---------------------------------------------------------------------- |
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24 | CONTAINS |
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25 | |
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26 | SUBROUTINE trc_rad( kt ) |
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27 | !!---------------------------------------------------------------------- |
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28 | !! *** ROUTINE trc_rad *** |
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29 | !! |
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30 | !! ** Purpose : "crappy" routine to correct artificial negative |
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31 | !! concentrations due to isopycnal scheme |
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32 | !! |
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33 | !! ** Method : Set negative concentrations to zero |
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34 | !! compute the corresponding mass added to the tracers |
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35 | !! and remove it when possible |
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36 | !! |
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37 | !! History : |
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38 | !! 8.2 ! 01-01 (O. Aumont & E. Kestenare) Original code |
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39 | !! 9.0 ! 04-03 (C. Ethe) free form F90 |
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40 | !!---------------------------------------------------------------------- |
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41 | !! * Arguments |
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42 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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43 | |
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44 | !! * Local declarations |
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45 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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46 | REAL(wp) :: ztra |
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47 | #if defined key_trc_hamocc3 || defined key_trc_pisces |
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48 | REAL(wp) :: zvolk, trcorb, trmasb ,trcorn, trmasn |
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49 | #endif |
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50 | !!---------------------------------------------------------------------- |
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51 | |
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52 | IF( kt == nittrc000 ) THEN |
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53 | IF(lwp) WRITE(numout,*) |
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54 | IF(lwp) WRITE(numout,*) 'trc_rad : Correct artificial negative concentrations ' |
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55 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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56 | ENDIF |
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57 | |
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58 | #if defined key_trc_hamocc3 |
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59 | DO jn = 1, jptra |
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60 | trcorb = 0. |
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61 | trmasb = 0. |
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62 | trcorn = 0. |
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63 | trmasn = 0. |
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64 | DO jk = 1, jpkm1 |
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65 | DO jj = 2, jpjm1 |
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66 | DO ji = 2, jpim1 |
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67 | zvolk = e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) & |
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68 | #if defined key_off_degrad |
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69 | & * facvol(ji,jj,jk) & |
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70 | #endif |
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71 | & * tmask(ji,jj,jk) |
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72 | |
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73 | trcorb = trcorb + MIN( 0., trb(ji,jj,jk,jn) ) * zvolk |
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74 | trcorn = trcorn + MIN( 0., trn(ji,jj,jk,jn) ) * zvolk |
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75 | |
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76 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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77 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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78 | |
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79 | trmasb = trmasb + trb(ji,jj,jk,jn) * zvolk |
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80 | trmasn = trmasn + trn(ji,jj,jk,jn) * zvolk |
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81 | END DO |
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82 | END DO |
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83 | END DO |
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84 | DO jk = 1, jpkm1 |
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85 | DO jj = 1, jpj |
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86 | DO ji = 1, jpi |
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87 | trb(ji,jj,jk,jn) = MAX( 0., trb(ji,jj,jk,jn) ) |
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88 | trb(ji,jj,jk,jn) = trb(ji,jj,jk,jn) * ( 1. + trcorb/trmasb ) * tmask(ji,jj,jk) |
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89 | trn(ji,jj,jk,jn) = MAX( 0., trn(ji,jj,jk,jn) ) |
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90 | trn(ji,jj,jk,jn) = trn(ji,jj,jk,jn) * ( 1. + trcorb/trmasb ) * tmask(ji,jj,jk) |
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91 | END DO |
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92 | END DO |
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93 | END DO |
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94 | END DO |
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95 | |
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96 | #elif defined key_trc_age || defined key_trc_lobster1 |
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97 | DO jn = 1, jptra |
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98 | DO jk = 1, jpkm1 |
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99 | DO jj = 1, jpj |
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100 | DO ji = 1, jpi |
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101 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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102 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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103 | END DO |
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104 | END DO |
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105 | END DO |
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106 | END DO |
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107 | |
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108 | #elif defined key_trc_pisces |
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109 | DO jn = 1, jptra |
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110 | trcorb = 0. |
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111 | trmasb = 0. |
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112 | trcorn = 0. |
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113 | trmasn = 0. |
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114 | DO jk = 1, jpkm1 |
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115 | DO jj = 1, jpj |
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116 | DO ji = 1, jpi |
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117 | zvolk = e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) & |
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118 | #if defined key_off_degrad |
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119 | & * facvol(ji,jj,jk) & |
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120 | #endif |
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121 | & * tmask(ji,jj,jk) |
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122 | |
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123 | trcorb = trcorb + MIN( 0., trb(ji,jj,jk,jn) ) * zvolk |
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124 | trcorn = trcorn + MIN( 0., trn(ji,jj,jk,jn) ) * zvolk |
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125 | |
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126 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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127 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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128 | |
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129 | trmasb = trmasb + trb(ji,jj,jk,jn) * zvolk |
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130 | trmasn = trmasn + trn(ji,jj,jk,jn) * zvolk |
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131 | END DO |
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132 | END DO |
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133 | END DO |
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134 | |
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135 | IF( trcorb /= 0) THEN |
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136 | DO jk = 1, jpkm1 |
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137 | DO jj = 1, jpj |
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138 | DO ji = 1, jpi |
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139 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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140 | trb(ji,jj,jk,jn) = trb(ji,jj,jk,jn) * ( 1. + trcorb/trmasb ) * tmask(ji,jj,jk) |
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141 | END DO |
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142 | END DO |
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143 | END DO |
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144 | ENDIF |
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145 | |
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146 | IF( trcorn /= 0) THEN |
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147 | DO jk = 1, jpkm1 |
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148 | DO jj = 1, jpj |
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149 | DO ji = 1, jpi |
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150 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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151 | trn(ji,jj,jk,jn) = trn(ji,jj,jk,jn) * ( 1. + trcorn/trmasn ) * tmask(ji,jj,jk) |
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152 | END DO |
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153 | END DO |
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154 | END DO |
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155 | ENDIF |
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156 | |
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157 | END DO |
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158 | |
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159 | #endif |
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160 | DO jn = 1, jptra |
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161 | IF(l_ctl) THEN ! print mean field (used for debugging) |
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162 | ztra = SUM( trn(2:nictl,2:njctl,1:jpkm1,jn) * tmask(2:nictl,2:njctl,1:jpkm1) ) |
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163 | WRITE(numout,*) ' trc/rad - ',ctrcnm(jn),' : ', ztra |
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164 | ENDIF |
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165 | ENDDO |
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166 | |
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167 | |
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168 | END SUBROUTINE trc_rad |
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169 | |
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170 | #else |
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171 | !!---------------------------------------------------------------------- |
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172 | !! Dummy module : NO passive tracer |
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173 | !!---------------------------------------------------------------------- |
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174 | CONTAINS |
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175 | SUBROUTINE trc_rad (kt ) ! Empty routine |
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176 | INTEGER, INTENT(in) :: kt |
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177 | WRITE(*,*) 'trc_rad: You should not have seen this print! error?', kt |
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178 | END SUBROUTINE trc_rad |
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179 | #endif |
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180 | |
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181 | !!====================================================================== |
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182 | END MODULE trcrad |
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