1 | MODULE p4zbio |
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2 | !!====================================================================== |
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3 | !! *** MODULE p4zbio *** |
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4 | !! TOP : PISCES bio-model |
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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 | !!---------------------------------------------------------------------- |
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9 | #if defined key_pisces |
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10 | !!---------------------------------------------------------------------- |
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11 | !! 'key_pisces' PISCES bio-model |
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12 | !!---------------------------------------------------------------------- |
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13 | !! p4z_bio : computes the interactions between the different |
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14 | !! compartments of PISCES |
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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 p4zsink ! vertical flux of particulate matter due to sinking |
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20 | USE p4zopt ! optical model |
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21 | USE p4zlim ! Co-limitations of differents nutrients |
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22 | USE p4zprod ! Growth rate of the 2 phyto groups |
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23 | USE p4zmort ! Mortality terms for phytoplankton |
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24 | USE p4zmicro ! Sources and sinks of microzooplankton |
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25 | USE p4zmeso ! Sources and sinks of mesozooplankton |
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26 | USE p4zrem ! Remineralisation of organic matter |
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27 | USE prtctl_trc ! print control for debugging |
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28 | USE iom ! I/O manager |
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29 | |
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30 | IMPLICIT NONE |
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31 | PRIVATE |
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32 | |
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33 | PUBLIC p4z_bio |
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34 | |
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35 | !!* Substitution |
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36 | # include "top_substitute.h90" |
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37 | !!---------------------------------------------------------------------- |
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38 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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39 | !! $Id$ |
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40 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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41 | !!---------------------------------------------------------------------- |
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42 | |
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43 | CONTAINS |
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44 | |
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45 | SUBROUTINE p4z_bio ( kt, jnt ) |
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46 | !!--------------------------------------------------------------------- |
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47 | !! *** ROUTINE p4z_bio *** |
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48 | !! |
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49 | !! ** Purpose : Ecosystem model in the whole ocean: computes the |
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50 | !! different interactions between the different compartments |
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51 | !! of PISCES |
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52 | !! |
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53 | !! ** Method : - ??? |
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54 | !!--------------------------------------------------------------------- |
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55 | INTEGER, INTENT(in) :: kt, jnt |
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56 | INTEGER :: ji, jj, jk, jn |
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57 | REAL(wp) :: ztra |
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58 | #if defined key_kriest |
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59 | REAL(wp) :: zcoef1, zcoef2 |
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60 | #endif |
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61 | CHARACTER (len=25) :: charout |
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62 | |
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63 | !!--------------------------------------------------------------------- |
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64 | ! |
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65 | IF( nn_timing == 1 ) CALL timing_start('p4z_bio') |
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66 | ! |
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67 | ! ASSIGN THE SHEAR RATE THAT IS USED FOR AGGREGATION |
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68 | ! OF PHYTOPLANKTON AND DETRITUS |
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69 | |
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70 | xdiss(:,:,:) = 1. |
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71 | !!gm the use of nmld should be better here? |
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72 | DO jk = 2, jpkm1 |
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73 | DO jj = 1, jpj |
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74 | DO ji = 1, jpi |
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75 | IF( fsdepw(ji,jj,jk+1) > hmld(ji,jj) ) xdiss(ji,jj,jk) = 0.01 |
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76 | END DO |
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77 | END DO |
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78 | END DO |
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79 | |
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80 | |
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81 | CALL p4z_sink ( kt, jnt ) ! vertical flux of particulate organic matter |
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82 | CALL p4z_opt ( kt, jnt ) ! Optic: PAR in the water column |
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83 | CALL p4z_lim ( kt ) ! co-limitations by the various nutrients |
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84 | CALL p4z_prod ( kt, jnt ) ! phytoplankton growth rate over the global ocean. |
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85 | ! ! (for each element : C, Si, Fe, Chl ) |
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86 | CALL p4z_rem ( kt ) ! remineralization terms of organic matter+scavenging of Fe |
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87 | CALL p4z_mort ( kt ) ! phytoplankton mortality |
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88 | ! ! zooplankton sources/sinks routines |
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89 | CALL p4z_micro( kt ) ! microzooplankton |
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90 | CALL p4z_meso ( kt, jnt ) ! mesozooplankton |
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91 | |
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92 | ! ! test if tracers concentrations fall below 0. |
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93 | xnegtr(:,:,:) = 1.e0 |
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94 | DO jn = jp_pcs0, jp_pcs1 |
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95 | DO jk = 1, jpk |
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96 | DO jj = 1, jpj |
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97 | DO ji = 1, jpi |
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98 | IF( ( trn(ji,jj,jk,jn) + tra(ji,jj,jk,jn) ) < 0.e0 ) THEN |
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99 | ztra = ABS( ( trn(ji,jj,jk,jn) - rtrn ) & |
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100 | / ( tra(ji,jj,jk,jn) + rtrn ) ) |
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101 | xnegtr(ji,jj,jk) = MIN( xnegtr(ji,jj,jk), ztra ) |
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102 | ENDIF |
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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 | ! ! where at least 1 tracer concentration becomes negative |
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108 | ! ! |
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109 | DO jn = jp_pcs0, jp_pcs1 |
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110 | trn(:,:,:,jn) = trn(:,:,:,jn) + xnegtr(:,:,:) * tra(:,:,:,jn) |
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111 | END DO |
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112 | |
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113 | |
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114 | tra(:,:,:,:) = 0.e0 |
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115 | |
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116 | #if defined key_kriest |
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117 | ! |
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118 | zcoef1 = 1.e0 / xkr_massp |
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119 | zcoef2 = 1.e0 / xkr_massp / 1.1 |
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120 | DO jk = 1,jpkm1 |
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121 | trn(:,:,jk,jpnum) = MAX( trn(:,:,jk,jpnum), trn(:,:,jk,jppoc) * zcoef1 / xnumm(jk) ) |
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122 | trn(:,:,jk,jpnum) = MIN( trn(:,:,jk,jpnum), trn(:,:,jk,jppoc) * zcoef2 ) |
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123 | END DO |
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124 | #endif |
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125 | |
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126 | ! |
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127 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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128 | WRITE(charout, FMT="('bio ')") |
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129 | CALL prt_ctl_trc_info(charout) |
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130 | CALL prt_ctl_trc(tab4d=trn, mask=tmask, clinfo=ctrcnm) |
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131 | ENDIF |
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132 | ! |
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133 | IF( nn_timing == 1 ) CALL timing_stop('p4z_bio') |
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134 | ! |
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135 | END SUBROUTINE p4z_bio |
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136 | |
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137 | #else |
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138 | !!====================================================================== |
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139 | !! Dummy module : No PISCES bio-model |
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140 | !!====================================================================== |
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141 | CONTAINS |
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142 | SUBROUTINE p4z_bio ! Empty routine |
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143 | END SUBROUTINE p4z_bio |
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144 | #endif |
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145 | |
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146 | !!====================================================================== |
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147 | END MODULE p4zbio |
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