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 | USE lib_mpp |
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14 | USE prtctl_trc ! Print control for debbuging |
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15 | |
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16 | IMPLICIT NONE |
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17 | PRIVATE |
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18 | |
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19 | !! * Routine accessibility |
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20 | PUBLIC trc_rad ! routine called by trcstp.F90 |
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21 | !! * Substitutions |
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22 | # include "passivetrc_substitute.h90" |
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23 | !!---------------------------------------------------------------------- |
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24 | !! TOP 1.0 , LOCEAN-IPSL (2005) |
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25 | !! $Header$ |
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26 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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27 | !!---------------------------------------------------------------------- |
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28 | CONTAINS |
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29 | |
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30 | SUBROUTINE trc_rad( kt ) |
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31 | !!---------------------------------------------------------------------- |
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32 | !! *** ROUTINE trc_rad *** |
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33 | !! |
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34 | !! ** Purpose : "crappy" routine to correct artificial negative |
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35 | !! concentrations due to isopycnal scheme |
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36 | !! |
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37 | !! ** Method : Set negative concentrations to zero |
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38 | !! compute the corresponding mass added to the tracers |
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39 | !! and remove it when possible |
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40 | !! |
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41 | !! History : |
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42 | !! 8.2 ! 01-01 (O. Aumont & E. Kestenare) Original code |
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43 | !! 9.0 ! 04-03 (C. Ethe) free form F90 |
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44 | !!---------------------------------------------------------------------- |
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45 | !! * Arguments |
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46 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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47 | |
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48 | !! * Local declarations |
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49 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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50 | #if defined key_trc_pisces || defined key_trc_lobster1 |
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51 | REAL(wp) :: zvolk, trcorb, trmasb ,trcorn, trmasn |
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52 | #endif |
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53 | CHARACTER (len=22) :: charout |
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54 | !!---------------------------------------------------------------------- |
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55 | |
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56 | IF( kt == nittrc000 ) THEN |
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57 | IF(lwp) WRITE(numout,*) |
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58 | IF(lwp) WRITE(numout,*) 'trc_rad : Correct artificial negative concentrations ' |
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59 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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60 | ENDIF |
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61 | |
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62 | |
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63 | #if defined key_cfc |
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64 | DO jn = 1, jptra |
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65 | DO jk = 1, jpkm1 |
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66 | DO jj = 1, jpj |
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67 | DO ji = 1, jpi |
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68 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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69 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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70 | END DO |
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71 | END DO |
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72 | END DO |
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73 | END DO |
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74 | |
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75 | #elif defined key_trc_pisces || defined key_trc_lobster1 |
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76 | |
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77 | DO jn = 1, jptra |
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78 | trcorb = 0. |
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79 | trmasb = 0. |
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80 | trcorn = 0. |
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81 | trmasn = 0. |
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82 | DO jk = 1, jpkm1 |
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83 | DO jj = 1, jpj |
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84 | DO ji = 1, jpi |
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85 | zvolk = e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) & |
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86 | #if defined key_off_degrad |
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87 | & * facvol(ji,jj,jk) & |
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88 | #endif |
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89 | & * tmask(ji,jj,jk) * tmask_i(ji,jj) |
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90 | |
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91 | trcorb = trcorb + MIN( 0., trb(ji,jj,jk,jn) ) * zvolk |
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92 | trcorn = trcorn + MIN( 0., trn(ji,jj,jk,jn) ) * zvolk |
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93 | |
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94 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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95 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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96 | |
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97 | trmasb = trmasb + trb(ji,jj,jk,jn) * zvolk |
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98 | trmasn = trmasn + trn(ji,jj,jk,jn) * zvolk |
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99 | END DO |
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100 | END DO |
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101 | END DO |
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102 | |
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103 | IF( lk_mpp ) THEN |
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104 | CALL mpp_sum( trcorb ) ! sum over the global domain |
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105 | CALL mpp_sum( trcorn ) ! sum over the global domain |
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106 | CALL mpp_sum( trmasb ) ! sum over the global domain |
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107 | CALL mpp_sum( trmasn ) ! sum over the global domain |
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108 | ENDIF |
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109 | |
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110 | IF( trcorb /= 0 ) THEN |
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111 | DO jk = 1, jpkm1 |
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112 | DO jj = 1, jpj |
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113 | DO ji = 1, jpi |
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114 | trb(ji,jj,jk,jn) = MAX( 0. , trb(ji,jj,jk,jn) ) |
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115 | trb(ji,jj,jk,jn) = trb(ji,jj,jk,jn) * ( 1. + trcorb/trmasb ) * tmask(ji,jj,jk) |
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116 | END DO |
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117 | END DO |
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118 | END DO |
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119 | ENDIF |
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120 | |
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121 | IF( trcorn /= 0) THEN |
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122 | DO jk = 1, jpkm1 |
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123 | DO jj = 1, jpj |
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124 | DO ji = 1, jpi |
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125 | trn(ji,jj,jk,jn) = MAX( 0. , trn(ji,jj,jk,jn) ) |
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126 | trn(ji,jj,jk,jn) = trn(ji,jj,jk,jn) * ( 1. + trcorn/trmasn ) * tmask(ji,jj,jk) |
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127 | END DO |
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128 | END DO |
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129 | END DO |
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130 | ENDIF |
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131 | |
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132 | END DO |
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133 | |
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134 | #endif |
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135 | |
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136 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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137 | WRITE(charout, FMT="('rad')") |
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138 | CALL prt_ctl_trc_info(charout) |
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139 | CALL prt_ctl_trc(tab4d=trn, mask=tmask, clinfo=ctrcnm) |
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140 | ENDIF |
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141 | |
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142 | |
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143 | END SUBROUTINE trc_rad |
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144 | |
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145 | #else |
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146 | !!---------------------------------------------------------------------- |
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147 | !! Dummy module : NO passive tracer |
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148 | !!---------------------------------------------------------------------- |
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149 | CONTAINS |
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150 | SUBROUTINE trc_rad (kt ) ! Empty routine |
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151 | INTEGER, INTENT(in) :: kt |
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152 | WRITE(*,*) 'trc_rad: You should not have seen this print! error?', kt |
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153 | END SUBROUTINE trc_rad |
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154 | #endif |
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155 | |
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156 | !!====================================================================== |
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157 | END MODULE trcrad |
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