1 | MODULE p5zagg |
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2 | !!====================================================================== |
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3 | !! *** MODULE p5zagg *** |
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4 | !! TOP : PISCES aggregation of particles |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2004 (O. Aumont) Original code |
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7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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8 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Change aggregation formula |
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9 | !! 3.5 ! 2012-07 (O. Aumont) Introduce potential time-splitting |
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10 | !! 3.6 ! 2015-05 (O. Aumont) PISCES quota |
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11 | !!---------------------------------------------------------------------- |
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12 | #if defined key_pisces_quota |
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13 | !!---------------------------------------------------------------------- |
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14 | !! p5z_agg : Compute aggregation of particles |
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15 | !!---------------------------------------------------------------------- |
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16 | USE oce_trc ! shared variables between ocean and passive tracers |
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17 | USE trc ! passive tracers common variables |
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18 | USE sms_pisces ! PISCES Source Minus Sink variables |
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19 | USE p5zsink ! PISCES sinking of particles |
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20 | USE prtctl_trc ! print control for debugging |
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21 | USE iom ! I/O manager |
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22 | USE lib_mpp |
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23 | |
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24 | IMPLICIT NONE |
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25 | PRIVATE |
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26 | |
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27 | PUBLIC p5z_agg ! called in p5zbio.F90 |
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28 | |
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29 | !!* Substitution |
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30 | # include "top_substitute.h90" |
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31 | !!---------------------------------------------------------------------- |
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32 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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33 | !! $Id: p4zsink.F90 3160 2011-11-20 14:27:18Z cetlod $ |
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34 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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35 | !!---------------------------------------------------------------------- |
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36 | CONTAINS |
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37 | |
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38 | !!---------------------------------------------------------------------- |
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39 | !! 'standard particles parameterisation' ??? |
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40 | !!---------------------------------------------------------------------- |
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41 | |
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42 | SUBROUTINE p5z_agg ( kt, knt ) |
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43 | !!--------------------------------------------------------------------- |
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44 | !! *** ROUTINE p5z_agg *** |
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45 | !! |
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46 | !! ** Purpose : Compute aggregation of particles |
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47 | !! |
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48 | !! ** Method : - ??? |
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49 | !!--------------------------------------------------------------------- |
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50 | INTEGER, INTENT(in) :: kt, knt |
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51 | INTEGER :: ji, jj, jk |
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52 | REAL(wp) :: zaggpoc1, zaggpoc2, zaggpoc3, zaggpoc4 |
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53 | REAL(wp) :: zaggpoc , zaggfe, zaggdoc, zaggdoc2, zaggdoc3 |
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54 | REAL(wp) :: zaggpon , zaggdon, zaggdon2, zaggdon3 |
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55 | REAL(wp) :: zaggpop, zaggdop, zaggdop2, zaggdop3 |
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56 | REAL(wp) :: zaggtmp, zfact, zmax, zstep |
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57 | CHARACTER (len=25) :: charout |
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58 | !!--------------------------------------------------------------------- |
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59 | ! |
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60 | IF( nn_timing == 1 ) CALL timing_start('p5z_agg') |
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61 | ! |
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62 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
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63 | ! --------------------------------------------------- |
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64 | DO jk = 1, jpkm1 |
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65 | DO jj = 1, jpj |
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66 | DO ji = 1, jpi |
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67 | ! |
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68 | zstep = xstep |
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69 | zfact = zstep * xdiss(ji,jj,jk) |
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70 | ! Part I : Coagulation dependent on turbulence |
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71 | zaggtmp = 25.9 * zfact * trb(ji,jj,jk,jppoc) |
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72 | zaggpoc1 = zaggtmp * trb(ji,jj,jk,jppoc) |
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73 | zaggtmp = 4452. * zfact * trb(ji,jj,jk,jpgoc) |
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74 | zaggpoc2 = zaggtmp * trb(ji,jj,jk,jppoc) |
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75 | |
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76 | ! Part II : Differential settling |
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77 | |
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78 | ! Aggregation of small into large particles |
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79 | zaggtmp = 47.1 * zstep * trb(ji,jj,jk,jpgoc) |
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80 | zaggpoc3 = zaggtmp * trb(ji,jj,jk,jppoc) |
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81 | zaggtmp = 3.3 * zstep * trb(ji,jj,jk,jppoc) |
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82 | zaggpoc4 = zaggtmp * trb(ji,jj,jk,jppoc) |
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83 | |
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84 | zaggpoc = zaggpoc1 + zaggpoc2 + zaggpoc3 + zaggpoc4 |
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85 | zaggpon = zaggpoc * trb(ji,jj,jk,jppon) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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86 | zaggpop = zaggpoc * trb(ji,jj,jk,jppop) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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87 | zaggfe = zaggpoc * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
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88 | |
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89 | ! Aggregation of DOC to POC : |
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90 | ! 1st term is shear aggregation of DOC-DOC |
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91 | ! 2nd term is shear aggregation of DOC-POC |
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92 | ! 3rd term is differential settling of DOC-POC |
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93 | zaggtmp = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
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94 | & + 2.4 * zstep * trb(ji,jj,jk,jppoc) ) |
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95 | zaggdoc = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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96 | zaggdon = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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97 | zaggdop = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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98 | |
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99 | ! transfer of DOC to GOC : |
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100 | ! 1st term is shear aggregation |
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101 | ! 2nd term is differential settling |
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102 | zaggtmp = ( 3.53E3 * zfact + 0.1 * zstep ) * trb(ji,jj,jk,jpgoc) |
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103 | zaggdoc2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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104 | zaggdon2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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105 | zaggdop2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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106 | |
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107 | ! tranfer of DOC to POC due to brownian motion |
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108 | zaggtmp = ( 114. * 0.3 * trb(ji,jj,jk,jpdoc) ) *zstep |
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109 | zaggdoc3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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110 | zaggdon3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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111 | zaggdop3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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112 | |
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113 | ! Update the trends |
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114 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zaggpoc + zaggdoc + zaggdoc3 |
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115 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) - zaggpon + zaggdon + zaggdon3 |
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116 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) - zaggpop + zaggdop + zaggdop3 |
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117 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zaggpoc + zaggdoc2 |
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118 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zaggpon + zaggdon2 |
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119 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + zaggpop + zaggdop2 |
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120 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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121 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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122 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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123 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) - zaggdon - zaggdon2 - zaggdon3 |
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124 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) - zaggdop - zaggdop2 - zaggdop3 |
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125 | ! |
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126 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zaggpoc + zaggdoc + zaggdoc3 |
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127 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zaggpoc + zaggdoc2 |
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128 | ! |
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129 | END DO |
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130 | END DO |
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131 | END DO |
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132 | ! |
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133 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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134 | WRITE(charout, FMT="('agg')") |
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135 | CALL prt_ctl_trc_info(charout) |
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136 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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137 | ENDIF |
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138 | ! |
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139 | IF( nn_timing == 1 ) CALL timing_stop('p5z_agg') |
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140 | ! |
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141 | END SUBROUTINE p5z_agg |
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142 | |
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143 | #else |
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144 | !!====================================================================== |
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145 | !! Dummy module : No PISCES bio-model |
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146 | !!====================================================================== |
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147 | CONTAINS |
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148 | SUBROUTINE p5z_agg ! Empty routine |
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149 | END SUBROUTINE p5z_agg |
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150 | #endif |
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151 | |
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152 | !!====================================================================== |
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153 | END MODULE p5zagg |
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