1 | MODULE p4zprod |
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2 | !!====================================================================== |
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3 | !! *** MODULE p4zprod *** |
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4 | !! TOP : PISCES |
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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_prod : |
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14 | !!---------------------------------------------------------------------- |
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15 | USE trc |
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16 | USE oce_trc ! |
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17 | USE trp_trc ! |
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18 | USE sms ! |
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19 | USE p4zday ! |
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20 | USE prtctl_trc |
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21 | USE p4zint |
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22 | USE p4zlim |
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23 | USE p4zopt |
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24 | |
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25 | IMPLICIT NONE |
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26 | PRIVATE |
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27 | |
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28 | PUBLIC p4z_prod ! called in p4zbio.F90 |
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29 | |
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30 | !! * Shared module variables |
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31 | REAL(wp), PUBLIC :: pislope = 3.0_wp , & !: |
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32 | & pislope2 = 3.0_wp , & !: |
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33 | & excret = 10.e-5_wp , & !: |
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34 | & excret2 = 0.05_wp , & !: |
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35 | & chlcnm = 0.033_wp , & !: |
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36 | & chlcdm = 0.05_wp , & !: |
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37 | & fecnm = 10.E-6_wp , & !: |
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38 | & fecdm = 15.E-6_wp , & !: |
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39 | & grosip = 0.151_wp |
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40 | |
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41 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: & |
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42 | & prmax |
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43 | |
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44 | REAL(wp) :: & |
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45 | tpp = 0. !: Total primary production |
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46 | |
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47 | !!* Substitution |
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48 | # include "domzgr_substitute.h90" |
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49 | !!---------------------------------------------------------------------- |
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50 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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51 | !! $Header:$ |
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52 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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53 | !!---------------------------------------------------------------------- |
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54 | |
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55 | CONTAINS |
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56 | |
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57 | SUBROUTINE p4z_prod( kt , jnt ) |
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58 | !!--------------------------------------------------------------------- |
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59 | !! *** ROUTINE p4z_prod *** |
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60 | !! |
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61 | !! ** Purpose : Compute the phytoplankton production depending on |
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62 | !! light, temperature and nutrient availability |
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63 | !! |
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64 | !! ** Method : - ??? |
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65 | !!--------------------------------------------------------------------- |
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66 | INTEGER, INTENT(in) :: kt, jnt |
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67 | INTEGER :: ji, jj, jk, nspyr |
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68 | REAL(wp) :: zsilfac, zfact, zrfact2 |
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69 | REAL(wp) :: zprdiachl, zprbiochl, zsilim, ztn, zadap, zadap2 |
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70 | REAL(wp) :: zlim, zsilfac2, zsiborn, zprod, zetot2, zmax, zproreg, zproreg2 |
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71 | REAL(wp) :: zmxltst, zmxlday, zlim1, zexcret, zexcret2 |
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72 | REAL(wp) :: zpislopen , zpislope2n |
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73 | REAL(wp), DIMENSION(jpi,jpj) :: zmixnano , zmixdiat, zstrn |
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74 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpislopead , zpislopead2 |
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75 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprdia , zprbio, zysopt |
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76 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprorca , zprorcad, zprofed |
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77 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprofen , zprochln, zprochld |
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78 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpronew , zpronewd |
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79 | CHARACTER (len=25) :: charout |
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80 | !!--------------------------------------------------------------------- |
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81 | |
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82 | |
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83 | IF( ( kt * jnt ) == nittrc000 ) CALL p4z_prod_init ! Initialization (first time-step only) |
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84 | |
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85 | |
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86 | zprorca (:,:,:) = 0.0 |
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87 | zprorcad(:,:,:) = 0.0 |
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88 | zprofed(:,:,:) = 0.0 |
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89 | zprofen(:,:,:) = 0.0 |
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90 | zprochln(:,:,:) = 0.0 |
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91 | zprochld(:,:,:) = 0.0 |
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92 | zpronew (:,:,:) = 0.0 |
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93 | zpronewd(:,:,:) = 0.0 |
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94 | zprdia (:,:,:) = 0.0 |
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95 | zprbio (:,:,:) = 0.0 |
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96 | zysopt (:,:,:) = 0.0 |
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97 | |
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98 | nspyr = INT( raass / rdt ) |
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99 | |
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100 | zexcret = 1. - excret |
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101 | zexcret2 = 1. - excret2 |
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102 | |
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103 | ! Computation of the optimal production |
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104 | ! ------------------------------------- |
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105 | |
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106 | # if defined key_off_degrad |
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107 | prmax(:,:,:) = 0.6 / rjjss * tgfunc(:,:,:) * facvol(:,:,:) |
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108 | # else |
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109 | prmax(:,:,:) = 0.6 / rjjss * tgfunc(:,:,:) |
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110 | # endif |
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111 | |
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112 | CALL p4z_day ! Computation of the day length |
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113 | |
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114 | !CDIR NOVERRCHK |
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115 | DO jk = 1, jpkm1 |
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116 | !CDIR NOVERRCHK |
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117 | DO jj = 1, jpj |
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118 | !CDIR NOVERRCHK |
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119 | DO ji = 1, jpi |
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120 | |
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121 | ! Computation of the P-I slope for nanos and diatoms |
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122 | ! -------------------------------------------------- |
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123 | IF( etot(ji,jj,jk) > 1.E-3 ) THEN |
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124 | ztn = MAX( 0., tn(ji,jj,jk) - 15. ) |
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125 | zadap = 0.+ 1.* ztn / ( 2.+ ztn ) |
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126 | zadap2 = 0.e0 |
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127 | |
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128 | zfact = EXP( -0.21 * emoy(ji,jj,jk) ) |
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129 | |
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130 | zpislopead (ji,jj,jk) = pislope * ( 1.+ zadap * zfact ) |
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131 | zpislopead2(ji,jj,jk) = pislope2 * ( 1.+ zadap2 * zfact ) |
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132 | |
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133 | zpislopen = zpislopead(ji,jj,jk) * trn(ji,jj,jk,jpnch) & |
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134 | & / ( trn(ji,jj,jk,jpphy) * 12. + rtrn ) & |
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135 | & / ( prmax(ji,jj,jk) * rjjss * xlimphy(ji,jj,jk) + rtrn ) |
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136 | |
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137 | zpislope2n = zpislopead2(ji,jj,jk) * trn(ji,jj,jk,jpdch) & |
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138 | & / ( trn(ji,jj,jk,jpdia) * 12. + rtrn ) & |
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139 | & / ( prmax(ji,jj,jk) * rjjss * xlimdia(ji,jj,jk) + rtrn ) |
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140 | |
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141 | ! Computation of production function |
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142 | ! ---------------------------------- |
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143 | |
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144 | zprbio(ji,jj,jk) = prmax(ji,jj,jk) * & |
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145 | & ( 1.- EXP( -zpislopen * enano(ji,jj,jk) ) ) |
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146 | zprdia(ji,jj,jk) = prmax(ji,jj,jk) * & |
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147 | & ( 1.- EXP( -zpislope2n * ediat(ji,jj,jk) ) ) |
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148 | ENDIF |
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149 | END DO |
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150 | END DO |
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151 | END DO |
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152 | |
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153 | |
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154 | DO jk = 1, jpkm1 |
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155 | DO jj = 1, jpj |
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156 | DO ji = 1, jpi |
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157 | |
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158 | IF( etot(ji,jj,jk) > 1.E-3 ) THEN |
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159 | ! Si/C of diatoms |
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160 | ! ------------------------ |
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161 | ! Si/C increases with iron stress and silicate availability |
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162 | ! Si/C is arbitrariliy increased for very high Si concentrations |
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163 | ! to mimic the very high ratios observed in the Southern Ocean (silpot2) |
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164 | |
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165 | zlim1 = trn(ji,jj,jk,jpsil) / ( trn(ji,jj,jk,jpsil) + xksi1 ) |
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166 | zlim = xdiatno3(ji,jj,jk) + xdiatnh4(ji,jj,jk) |
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167 | |
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168 | zsilim = MIN( zprdia(ji,jj,jk) / ( rtrn + prmax(ji,jj,jk) ), & |
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169 | & trn(ji,jj,jk,jpfer) / ( concdfe(ji,jj,jk) + trn(ji,jj,jk,jpfer) ), & |
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170 | & trn(ji,jj,jk,jppo4) / ( concdnh4 + trn(ji,jj,jk,jppo4) ), & |
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171 | & zlim ) |
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172 | zsilfac = 5.4 * EXP( -4.23 * zsilim ) * MAX( 0.e0, MIN( 1., 2.2 * ( zlim1 - 0.5 ) ) ) + 1.e0 |
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173 | zsiborn = MAX( 0.e0, ( trn(ji,jj,jk,jpsil) - 15.e-6 ) ) |
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174 | zsilfac2 = 1.+ 3.* zsiborn / ( zsiborn + xksi2 ) |
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175 | zsilfac = MIN( 6.4,zsilfac * zsilfac2) |
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176 | zysopt(ji,jj,jk) = grosip * zlim1 * zsilfac |
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177 | |
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178 | ENDIF |
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179 | END DO |
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180 | END DO |
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181 | END DO |
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182 | |
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183 | ! Computation of the limitation term due to |
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184 | ! A mixed layer deeper than the euphotic depth |
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185 | ! -------------------------------------------- |
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186 | |
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187 | DO jj = 1, jpj |
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188 | DO ji = 1, jpi |
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189 | zmxltst = MAX( 0.e0, hmld(ji,jj) - heup(ji,jj) ) |
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190 | zmxlday = zmxltst**2 / rjjss |
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191 | zmixnano(ji,jj) = 1.- zmxlday / ( 1.+ zmxlday ) |
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192 | zmixdiat(ji,jj) = 1.- zmxlday / ( 3.+ zmxlday ) |
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193 | END DO |
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194 | END DO |
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195 | |
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196 | DO jk = 1, jpkm1 |
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197 | DO jj = 1, jpj |
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198 | DO ji = 1, jpi |
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199 | IF( fsdepw(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
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200 | |
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201 | ! Mixed-layer effect on production |
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202 | ! -------------------------------- |
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203 | zprbio(ji,jj,jk) = zprbio(ji,jj,jk) * zmixnano(ji,jj) |
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204 | zprdia(ji,jj,jk) = zprdia(ji,jj,jk) * zmixdiat(ji,jj) |
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205 | ENDIF |
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206 | END DO |
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207 | END DO |
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208 | END DO |
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209 | |
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210 | ! Computation of the fractionnal day length |
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211 | ! ----------------------------------------- |
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212 | zstrn(:,:) = strn(:,:) |
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213 | |
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214 | DO jj = 1, jpj |
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215 | DO ji = 1, jpi |
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216 | |
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217 | ! Computation of the maximum light intensity |
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218 | ! ------------------------------------------ |
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219 | IF( zstrn(ji,jj) < 1.e0 ) zstrn(ji,jj) = 24. |
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220 | zstrn(ji,jj) = 24./zstrn(ji,jj) |
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221 | END DO |
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222 | END DO |
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223 | |
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224 | !CDIR NOVERRCHK |
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225 | DO jk = 1, jpkm1 |
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226 | !CDIR NOVERRCHK |
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227 | DO jj = 1, jpj |
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228 | !CDIR NOVERRCHK |
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229 | DO ji = 1, jpi |
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230 | |
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231 | IF( etot(ji,jj,jk) > 1.E-3 ) THEN |
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232 | ! Computation of the various production terms for nanophyto. |
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233 | ! ---------------------------------------------------------- |
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234 | zetot2 = enano(ji,jj,jk) * zstrn(ji,jj) |
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235 | zmax = MAX( 0.1, xlimphy(ji,jj,jk) ) |
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236 | zpislopen = zpislopead(ji,jj,jk) & |
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237 | & * trn(ji,jj,jk,jpnch) / ( rtrn + trn(ji,jj,jk,jpphy) * 12.) & |
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238 | & / ( prmax(ji,jj,jk) * rjjss * zmax + rtrn ) |
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239 | |
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240 | zprbiochl = prmax(ji,jj,jk) * ( 1.- EXP( -zpislopen * zetot2 ) ) |
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241 | |
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242 | zprorca(ji,jj,jk) = zprbio(ji,jj,jk) * xlimphy(ji,jj,jk) * trn(ji,jj,jk,jpphy) * rfact2 |
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243 | |
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244 | zpronew(ji,jj,jk) = zprorca(ji,jj,jk) * xnanono3(ji,jj,jk) & |
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245 | & / ( xnanono3(ji,jj,jk) + xnanonh4(ji,jj,jk) + rtrn ) |
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246 | zprod = rjjss * zprorca(ji,jj,jk) * zprbiochl * trn(ji,jj,jk,jpphy) *zmax |
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247 | |
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248 | zprofen(ji,jj,jk) = (fecnm)**2 * zprod / chlcnm & |
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249 | & / ( zpislopead(ji,jj,jk) * zetot2 * trn(ji,jj,jk,jpnfe) + rtrn ) |
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250 | |
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251 | zprochln(ji,jj,jk) = chlcnm * 144. * zprod & |
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252 | & / ( zpislopead(ji,jj,jk) * zetot2 * trn(ji,jj,jk,jpnch) + rtrn ) |
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253 | ENDIF |
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254 | END DO |
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255 | END DO |
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256 | END DO |
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257 | |
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258 | !CDIR NOVERRCHK |
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259 | DO jk = 1, jpkm1 |
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260 | !CDIR NOVERRCHK |
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261 | DO jj = 1, jpj |
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262 | !CDIR NOVERRCHK |
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263 | DO ji = 1, jpi |
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264 | IF( etot(ji,jj,jk) > 1.E-3 ) THEN |
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265 | ! Computation of the various production terms for diatoms |
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266 | ! ------------------------------------------------------- |
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267 | zetot2 = ediat(ji,jj,jk) * zstrn(ji,jj) |
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268 | zmax = MAX( 0.1, xlimdia(ji,jj,jk) ) |
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269 | zpislope2n = zpislopead2(ji,jj,jk) * trn(ji,jj,jk,jpdch) & |
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270 | & / ( rtrn + trn(ji,jj,jk,jpdia) * 12.) & |
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271 | & / ( prmax(ji,jj,jk) * rjjss * zmax + rtrn ) |
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272 | |
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273 | zprdiachl = prmax(ji,jj,jk) * ( 1.- EXP( -zetot2 * zpislope2n ) ) |
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274 | |
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275 | zprorcad(ji,jj,jk) = zprdia(ji,jj,jk) * xlimdia(ji,jj,jk) * trn(ji,jj,jk,jpdia) * rfact2 |
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276 | |
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277 | zpronewd(ji,jj,jk) = zprorcad(ji,jj,jk) * xdiatno3(ji,jj,jk) & |
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278 | & / ( xdiatno3(ji,jj,jk) + xdiatnh4(ji,jj,jk) + rtrn ) |
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279 | |
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280 | zprod = rjjss * zprorcad(ji,jj,jk) * zprdiachl * trn(ji,jj,jk,jpdia) * zmax |
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281 | |
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282 | zprofed(ji,jj,jk) = (fecdm)**2 * zprod / chlcdm & |
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283 | & / ( zpislopead2(ji,jj,jk) * zetot2 * trn(ji,jj,jk,jpdfe) + rtrn ) |
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284 | |
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285 | zprochld(ji,jj,jk) = chlcdm * 144. * zprod & |
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286 | & / ( zpislopead2(ji,jj,jk) * zetot2 * trn(ji,jj,jk,jpdch) + rtrn ) |
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287 | |
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288 | ENDIF |
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289 | END DO |
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290 | END DO |
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291 | END DO |
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292 | ! |
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293 | |
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294 | ! |
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295 | ! Update the arrays TRA which contain the biological sources and sinks |
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296 | ! -------------------------------------------------------------------- |
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297 | |
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298 | DO jk = 1, jpkm1 |
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299 | DO jj = 1, jpj |
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300 | DO ji =1 ,jpi |
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301 | zproreg = zprorca(ji,jj,jk) - zpronew(ji,jj,jk) |
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302 | zproreg2 = zprorcad(ji,jj,jk) - zpronewd(ji,jj,jk) |
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303 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - zprorca(ji,jj,jk) - zprorcad(ji,jj,jk) |
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304 | tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3) - zpronew(ji,jj,jk) - zpronewd(ji,jj,jk) |
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305 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) - zproreg - zproreg2 |
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306 | tra(ji,jj,jk,jpphy) = tra(ji,jj,jk,jpphy) + zprorca(ji,jj,jk) * zexcret |
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307 | tra(ji,jj,jk,jpnch) = tra(ji,jj,jk,jpnch) + zprochln(ji,jj,jk) * zexcret |
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308 | tra(ji,jj,jk,jpnfe) = tra(ji,jj,jk,jpnfe) + zprofen(ji,jj,jk) * zexcret |
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309 | tra(ji,jj,jk,jpdia) = tra(ji,jj,jk,jpdia) + zprorcad(ji,jj,jk) * zexcret2 |
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310 | tra(ji,jj,jk,jpdch) = tra(ji,jj,jk,jpdch) + zprochld(ji,jj,jk) * zexcret2 |
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311 | tra(ji,jj,jk,jpdfe) = tra(ji,jj,jk,jpdfe) + zprofed(ji,jj,jk) * zexcret2 |
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312 | tra(ji,jj,jk,jpbsi) = tra(ji,jj,jk,jpbsi) + zprorcad(ji,jj,jk) * zysopt(ji,jj,jk) * zexcret2 |
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313 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + & |
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314 | & excret2 * zprorcad(ji,jj,jk) + excret * zprorca(ji,jj,jk) |
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315 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + o2ut * ( zproreg + zproreg2) & |
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316 | & + ( o2ut + o2nit ) * ( zpronew(ji,jj,jk) + zpronewd(ji,jj,jk) ) |
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317 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) & |
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318 | & - zexcret * zprofen(ji,jj,jk) - zexcret2 * zprofed(ji,jj,jk) |
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319 | tra(ji,jj,jk,jpsil) = tra(ji,jj,jk,jpsil) & |
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320 | & - zexcret2 * zprorcad(ji,jj,jk) * zysopt(ji,jj,jk) |
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321 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) - zprorca(ji,jj,jk) - zprorcad(ji,jj,jk) |
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322 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) & |
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323 | & + rno3 * ( zpronew(ji,jj,jk) + zpronewd(ji,jj,jk) ) |
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324 | END DO |
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325 | END DO |
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326 | END DO |
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327 | |
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328 | ! Total primary production per year |
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329 | DO jk = 1, jpkm1 |
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330 | DO jj = 1, jpj |
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331 | DO ji = 1, jpi |
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332 | tpp = tpp + ( zprorca(ji,jj,jk) + zprorcad(ji,jj,jk) ) & |
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333 | #if defined key_off_degrad |
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334 | & * facvol(ji,jj,jk) & |
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335 | #endif |
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336 | & * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) * tmask_i(ji,jj) |
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337 | END DO |
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338 | END DO |
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339 | END DO |
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340 | |
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341 | IF( MOD( kt, nspyr ) == 0 ) THEN |
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342 | WRITE(numout,*) 'Total PP :' |
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343 | WRITE(numout,*) '-------------------- : ',tpp * 12. / 1.E12 |
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344 | WRITE(numout,*) '(GtC/an)' |
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345 | tpp = 0. |
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346 | ENDIF |
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347 | |
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348 | #if defined key_trc_dia3d |
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349 | zrfact2 = 1.e3 * rfact2r |
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350 | ! Supplementary diagnostics |
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351 | ! ------------------------- |
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352 | trc3d(:,:,:,4) = etot(:,:,:) |
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353 | trc3d(:,:,:,5) = zprorca(:,:,:) * zrfact2 |
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354 | trc3d(:,:,:,6) = zprorcad(:,:,:) * zrfact2 |
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355 | trc3d(:,:,:,7) = zpronew(:,:,:) * zrfact2 |
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356 | trc3d(:,:,:,8) = zpronewd(:,:,:) * zrfact2 |
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357 | trc3d(:,:,:,9) = zprorcad(:,:,:) * zysopt(:,:,:) * zrfact2 |
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358 | trc3d(:,:,:,10) = zprofed(:,:,:) * zrfact2 |
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359 | #if ! defined key_kriest |
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360 | trc3d(:,:,:,11) = zprofen(:,:,:) * zrfact2 |
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361 | #endif |
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362 | #endif |
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363 | |
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364 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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365 | WRITE(charout, FMT="('prod')") |
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366 | CALL prt_ctl_trc_info(charout) |
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367 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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368 | ENDIF |
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369 | |
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370 | END SUBROUTINE p4z_prod |
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371 | |
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372 | SUBROUTINE p4z_prod_init |
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373 | |
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374 | !!---------------------------------------------------------------------- |
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375 | !! *** ROUTINE p4z_prod_init *** |
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376 | !! |
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377 | !! ** Purpose : Initialization of phytoplankton production parameters |
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378 | !! |
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379 | !! ** Method : Read the natprod namelist and check the parameters |
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380 | !! called at the first timestep (nittrc000) |
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381 | !! |
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382 | !! ** input : Namelist natprod |
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383 | !! |
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384 | !!---------------------------------------------------------------------- |
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385 | |
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386 | NAMELIST/natprod/ pislope, pislope2, excret, excret2, chlcnm, chlcdm, & |
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387 | & fecnm, fecdm, grosip |
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388 | |
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389 | REWIND( numnat ) ! read numnat |
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390 | READ ( numnat, natprod ) |
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391 | |
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392 | IF(lwp) THEN ! control print |
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393 | WRITE(numout,*) ' ' |
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394 | WRITE(numout,*) ' Namelist parameters for phytoplankton growth, natprod' |
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395 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' |
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396 | WRITE(numout,*) ' mean Si/C ratio grosip =', grosip |
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397 | WRITE(numout,*) ' P-I slope pislope =', pislope |
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398 | WRITE(numout,*) ' excretion ratio of nanophytoplankton excret =', excret |
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399 | WRITE(numout,*) ' excretion ratio of diatoms excret2 =', excret2 |
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400 | WRITE(numout,*) ' P-I slope for diatoms pislope2 =', pislope2 |
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401 | WRITE(numout,*) ' Minimum Chl/C in nanophytoplankton chlcnm =', chlcnm |
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402 | WRITE(numout,*) ' Minimum Chl/C in diatoms chlcdm =', chlcdm |
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403 | WRITE(numout,*) ' Maximum Fe/C in nanophytoplankton fecnm =', fecnm |
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404 | WRITE(numout,*) ' Minimum Fe/C in diatoms fecdm =', fecdm |
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405 | ENDIF |
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406 | |
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407 | END SUBROUTINE p4z_prod_init |
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408 | |
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409 | |
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410 | |
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411 | #else |
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412 | !!====================================================================== |
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413 | !! Dummy module : No PISCES bio-model |
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414 | !!====================================================================== |
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415 | CONTAINS |
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416 | SUBROUTINE p4z_prod ! Empty routine |
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417 | END SUBROUTINE p4z_prod |
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418 | #endif |
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419 | |
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420 | !!====================================================================== |
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421 | END MODULE p4zprod |
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