1 | MODULE p4zsed |
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2 | !!====================================================================== |
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3 | !! *** MODULE p4sed *** |
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4 | !! TOP : PISCES Compute loss of organic matter in the sediments |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2004-03 (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_sed : Compute loss of organic matter in the sediments |
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14 | !!---------------------------------------------------------------------- |
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15 | USE oce_trc ! |
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16 | USE trp_trc |
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17 | USE sms |
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18 | USE lib_mpp |
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19 | USE prtctl_trc |
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20 | |
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21 | |
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22 | IMPLICIT NONE |
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23 | PRIVATE |
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24 | |
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25 | PUBLIC p4z_sed ! called in p4zprg.F90 |
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26 | |
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27 | !!* Substitution |
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28 | # include "domzgr_substitute.h90" |
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29 | !!---------------------------------------------------------------------- |
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30 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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31 | !! $Header:$ |
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32 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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33 | !!---------------------------------------------------------------------- |
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34 | |
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35 | CONTAINS |
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36 | |
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37 | SUBROUTINE p4z_sed |
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38 | !!--------------------------------------------------------------------- |
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39 | !! *** ROUTINE p4z_sed *** |
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40 | !! |
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41 | !! ** Purpose : Compute loss of organic matter in the sediments. This |
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42 | !! is by no way a sediment model. The loss is simply |
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43 | !! computed to balance the inout from rivers and dust |
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44 | !! |
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45 | !! ** Method : - ??? |
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46 | !!--------------------------------------------------------------------- |
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47 | INTEGER :: ji, jj, jk |
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48 | INTEGER :: ikt |
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49 | REAL(wp) :: zsumsedsi, zsumsedpo4, zsumsedcal |
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50 | REAL(wp) :: zconctmp , zdenitot , znitrpottot |
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51 | REAL(wp) :: zlim, zconctmp2, zstep, zfact |
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52 | REAL(wp), DIMENSION(jpi,jpj) :: zsidep |
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53 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: znitrpot, zirondep |
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54 | CHARACTER (len=25) :: charout |
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55 | !!--------------------------------------------------------------------- |
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56 | |
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57 | |
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58 | zstep = rfact2 / rjjss ! Time step duration for the biology |
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59 | |
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60 | zirondep(:,:,:) = 0.e0 ! Initialisation of variables used to compute deposition |
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61 | zsidep (:,:) = 0.e0 |
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62 | |
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63 | ! Iron and Si deposition at the surface |
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64 | ! ------------------------------------- |
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65 | |
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66 | DO jj = 1, jpj |
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67 | DO ji = 1, jpi |
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68 | zirondep(ji,jj,1) = ( 0.014 * dust(ji,jj) / ( 55.85 * rmoss ) + 3.e-10 / raass ) & |
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69 | & * rfact2 / fse3t(ji,jj,1) |
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70 | zsidep (ji,jj) = 8.8 * 0.075 * dust(ji,jj) * rfact2 / ( fse3t(ji,jj,1) * 28.1 * rmoss ) |
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71 | END DO |
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72 | END DO |
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73 | |
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74 | ! Iron solubilization of particles in the water column |
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75 | ! ---------------------------------------------------- |
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76 | |
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77 | DO jk = 2, jpkm1 |
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78 | DO jj = 1, jpj |
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79 | DO ji = 1, jpi |
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80 | zirondep(ji,jj,jk) = dust(ji,jj) / ( 10. * 55.85 * rmoss ) * rfact2 * 0.0001 |
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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 | |
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85 | ! Add the external input of nutrients, carbon and alkalinity |
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86 | ! ---------------------------------------------------------- |
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87 | |
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88 | DO jj = 1, jpj |
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89 | DO ji = 1, jpi |
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90 | trn(ji,jj,1,jppo4) = trn(ji,jj,1,jppo4) + rivinp(ji,jj) * rfact2 |
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91 | trn(ji,jj,1,jpno3) = trn(ji,jj,1,jpno3) + ( rivinp(ji,jj) + nitdep(ji,jj) ) * rfact2 |
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92 | trn(ji,jj,1,jpfer) = trn(ji,jj,1,jpfer) + rivinp(ji,jj) * 3.e-5 * rfact2 |
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93 | trn(ji,jj,1,jpsil) = trn(ji,jj,1,jpsil) + zsidep (ji,jj) + cotdep(ji,jj) * rfact2 / 6. |
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94 | trn(ji,jj,1,jpdic) = trn(ji,jj,1,jpdic) + rivinp(ji,jj) * 2.631 * rfact2 |
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95 | trn(ji,jj,1,jptal) = trn(ji,jj,1,jptal) + ( cotdep(ji,jj) - rno3*(rivinp(ji,jj) & |
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96 | & + nitdep(ji,jj) ) ) * rfact2 |
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97 | END DO |
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98 | END DO |
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99 | |
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100 | |
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101 | ! Add the external input of iron which is 3D distributed |
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102 | ! (dust, river and sediment mobilization) |
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103 | ! ------------------------------------------------------ |
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104 | |
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105 | DO jk = 1, jpkm1 |
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106 | DO jj = 1, jpj |
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107 | DO ji = 1, jpi |
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108 | trn(ji,jj,jk,jpfer) = trn(ji,jj,jk,jpfer) & |
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109 | & + zirondep(ji,jj,jk) + ironsed(ji,jj,jk) * rfact2 |
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110 | END DO |
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111 | END DO |
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112 | END DO |
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113 | |
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114 | ! Initialisation of variables used to compute Sinking Speed |
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115 | ! --------------------------------------------------------- |
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116 | |
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117 | zsumsedsi = 0.e0 |
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118 | zsumsedpo4 = 0.e0 |
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119 | zsumsedcal = 0.e0 |
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120 | |
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121 | ! Loss of biogenic silicon, Caco3 organic carbon in the sediments. |
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122 | ! First, the total loss is computed. |
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123 | ! The factor for calcite comes from the alkalinity effect |
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124 | ! ------------------------------------------------------------- |
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125 | |
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126 | DO jj = 1, jpj |
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127 | DO ji = 1, jpi |
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128 | ikt = MAX( mbathy(ji,jj)-1, 1 ) |
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129 | zfact = e1t(ji,jj) * e2t(ji,jj) / rjjss * tmask_i(ji,jj) |
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130 | # if ! defined key_kriest |
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131 | zsumsedsi = zsumsedsi + zfact * trn(ji,jj,ikt,jpdsi) * wsbio4(ji,jj,ikt) |
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132 | # else |
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133 | zsumsedsi = zsumsedsi + zfact * trn(ji,jj,ikt,jpdsi) * wscal (ji,jj,ikt) |
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134 | # endif |
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135 | zsumsedcal = zsumsedcal + zfact * trn(ji,jj,ikt,jpcal) * wscal (ji,jj,ikt) * 2.e0 |
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136 | # if defined key_kriest |
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137 | zsumsedpo4 = zsumsedpo4 + zfact * trn(ji,jj,ikt,jppoc) * wsbio3(ji,jj,ikt) |
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138 | # else |
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139 | zsumsedpo4 = zsumsedpo4 + zfact *( trn(ji,jj,ikt,jpgoc) * wsbio4(ji,jj,ikt) & |
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140 | & + trn(ji,jj,ikt,jppoc) * wsbio3(ji,jj,ikt) ) |
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141 | # endif |
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142 | END DO |
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143 | END DO |
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144 | |
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145 | IF( lk_mpp ) THEN |
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146 | CALL mpp_sum( zsumsedsi ) ! sums over the global domain |
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147 | CALL mpp_sum( zsumsedcal ) ! sums over the global domain |
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148 | CALL mpp_sum( zsumsedpo4 ) ! sums over the global domain |
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149 | ENDIF |
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150 | |
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151 | ! Then this loss is scaled at each bottom grid cell for |
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152 | ! equilibrating the total budget of silica in the ocean. |
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153 | ! Thus, the amount of silica lost in the sediments equal |
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154 | ! the supply at the surface (dust+rivers) |
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155 | ! ------------------------------------------------------ |
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156 | |
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157 | DO jj = 1, jpj |
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158 | DO ji = 1, jpi |
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159 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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160 | zconctmp = trn(ji,jj,ikt,jpdsi) * zstep / fse3t(ji,jj,ikt) & |
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161 | # if ! defined key_kriest |
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162 | & * wsbio4(ji,jj,ikt) |
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163 | # else |
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164 | & * wscal (ji,jj,ikt) |
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165 | # endif |
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166 | trn(ji,jj,ikt,jpdsi) = trn(ji,jj,ikt,jpdsi) - zconctmp |
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167 | trn(ji,jj,ikt,jpsil) = trn(ji,jj,ikt,jpsil) + zconctmp & |
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168 | & * ( 1.- ( sumdepsi + rivalkinput / raass / 6. ) / zsumsedsi ) |
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169 | END DO |
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170 | END DO |
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171 | |
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172 | DO jj = 1, jpj |
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173 | DO ji = 1, jpi |
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174 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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175 | zconctmp = trn(ji,jj,ikt,jpcal) * wscal(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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176 | trn(ji,jj,ikt,jpcal) = trn(ji,jj,ikt,jpcal) - zconctmp |
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177 | trn(ji,jj,ikt,jptal) = trn(ji,jj,ikt,jptal) + zconctmp & |
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178 | & * ( 1.- ( rivalkinput / raass ) / zsumsedcal ) * 2.e0 |
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179 | trn(ji,jj,ikt,jpdic) = trn(ji,jj,ikt,jpdic) + zconctmp & |
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180 | & * ( 1.- ( rivalkinput / raass ) / zsumsedcal ) |
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181 | END DO |
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182 | END DO |
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183 | |
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184 | DO jj = 1, jpj |
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185 | DO ji = 1, jpi |
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186 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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187 | # if ! defined key_kriest |
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188 | zconctmp = trn(ji,jj,ikt,jpgoc) |
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189 | zconctmp2 = trn(ji,jj,ikt,jppoc) |
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190 | trn(ji,jj,ikt,jpgoc) = trn(ji,jj,ikt,jpgoc) - zconctmp * wsbio4(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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191 | trn(ji,jj,ikt,jppoc) = trn(ji,jj,ikt,jppoc) - zconctmp2 * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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192 | trn(ji,jj,ikt,jpdoc) = trn(ji,jj,ikt,jpdoc) & |
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193 | & + ( zconctmp * wsbio4(ji,jj,ikt) + zconctmp2 * wsbio3(ji,jj,ikt) ) * zstep / fse3t(ji,jj,ikt) & |
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194 | & * ( 1.- rivpo4input / (raass * zsumsedpo4 ) ) |
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195 | trn(ji,jj,ikt,jpbfe) = trn(ji,jj,ikt,jpbfe) - trn(ji,jj,ikt,jpbfe) * wsbio4(ji,jj,ikt) * zstep & |
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196 | & /fse3t(ji,jj,ikt) |
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197 | trn(ji,jj,ikt,jpsfe) = trn(ji,jj,ikt,jpsfe) - trn(ji,jj,ikt,jpsfe) * wsbio3(ji,jj,ikt) * zstep & |
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198 | & /fse3t(ji,jj,ikt) |
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199 | # else |
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200 | zconctmp = trn(ji,jj,ikt,jpnum) |
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201 | zconctmp2 = trn(ji,jj,ikt,jppoc) |
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202 | trn(ji,jj,ikt,jpnum) = trn(ji,jj,ikt,jpnum) & |
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203 | & - zconctmp * wsbio4(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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204 | trn(ji,jj,ikt,jppoc) = trn(ji,jj,ikt,jppoc) & |
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205 | & - zconctmp2 * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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206 | trn(ji,jj,ikt,jpdoc) = trn(ji,jj,ikt,jpdoc) & |
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207 | & + ( zconctmp2 * wsbio3(ji,jj,ikt) ) & |
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208 | & * zstep / fse3t(ji,jj,ikt) * ( 1.- rivpo4input / ( raass * zsumsedpo4 ) ) |
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209 | trn(ji,jj,ikt,jpsfe) = trn(ji,jj,ikt,jpsfe) & |
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210 | & - trn(ji,jj,ikt,jpsfe) * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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211 | # endif |
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212 | END DO |
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213 | END DO |
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214 | |
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215 | ! Nitrogen fixation (simple parameterization). The total gain |
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216 | ! from nitrogen fixation is scaled to balance the loss by |
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217 | ! denitrification |
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218 | ! ------------------------------------------------------------- |
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219 | |
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220 | !!gm optimisation : use fs do loop index... or 1 to jpi/j |
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221 | zdenitot = 0.e0 |
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222 | DO jk = 1, jpkm1 |
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223 | DO jj= 2, jpjm1 |
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224 | DO ji = 2, jpim1 |
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225 | zdenitot = zdenitot + denitr(ji,jj,jk) * rdenit * e1t(ji,jj) * e2t(ji,jj) & |
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226 | & *fse3t(ji,jj,jk) * tmask(ji,jj,jk) * tmask_i(ji,jj) * xnegtr(ji,jj,jk) |
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227 | END DO |
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228 | END DO |
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229 | END DO |
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230 | |
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231 | IF( lk_mpp ) CALL mpp_sum( zdenitot ) ! sum over the global domain |
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232 | |
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233 | ! Potential nitrogen fication dependant on temperature and iron |
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234 | ! ------------------------------------------------------------- |
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235 | |
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236 | !CDIR NOVERRCHK |
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237 | DO jk = 1, jpk |
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238 | !CDIR NOVERRCHK |
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239 | DO jj = 1, jpj |
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240 | !CDIR NOVERRCHK |
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241 | DO ji = 1, jpi |
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242 | zlim = ( 1.- xnanono3(ji,jj,jk) - xnanonh4(ji,jj,jk) ) |
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243 | IF( zlim <= 0.2 ) zlim = 0.01 |
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244 | znitrpot(ji,jj,jk) = MAX( 0.e0, ( 0.6 * tgfunc(ji,jj,jk) - 2.15 ) / rjjss ) & |
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245 | # if defined key_off_degrad |
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246 | & * facvol(ji,jj,jk) & |
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247 | # endif |
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248 | & * zlim * rfact2 * trn(ji,jj,jk,jpfer) & |
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249 | & / ( conc3 + trn(ji,jj,jk,jpfer) ) * ( 1.- EXP( -etot(ji,jj,jk) / 50.) ) |
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250 | END DO |
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251 | END DO |
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252 | END DO |
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253 | |
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254 | znitrpottot = 0.e0 |
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255 | DO jk = 1, jpkm1 |
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256 | DO jj = 1, jpj |
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257 | DO ji = 1, jpi |
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258 | znitrpottot = znitrpottot + znitrpot(ji,jj,jk) * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) & |
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259 | & * tmask(ji,jj,jk) * tmask_i(ji,jj) |
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260 | END DO |
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261 | END DO |
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262 | END DO |
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263 | |
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264 | IF( lk_mpp ) CALL mpp_sum( znitrpottot ) ! sum over the global domain |
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265 | |
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266 | ! Nitrogen change due to nitrogen fixation |
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267 | ! ---------------------------------------- |
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268 | |
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269 | DO jk = 1, jpk |
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270 | DO jj = 1, jpj |
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271 | DO ji = 1, jpi |
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272 | # if ! defined key_cfg_1d && ( defined key_orca_r4 || defined key_orca_r2 || defined key_orca_r05 || defined key_orca_r025 ) |
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273 | !! zfact = znitrpot(ji,jj,jk) * zdenitot / znitrpottot |
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274 | zfact = znitrpot(ji,jj,jk) * 1.e-7 |
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275 | # else |
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276 | zfact = znitrpot(ji,jj,jk) * 1.e-7 |
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277 | # endif |
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278 | trn(ji,jj,jk,jpnh4) = trn(ji,jj,jk,jpnh4) + zfact |
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279 | trn(ji,jj,jk,jpoxy) = trn(ji,jj,jk,jpoxy) + zfact * o2nit |
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280 | trn(ji,jj,jk,jppo4) = trn(ji,jj,jk,jppo4) + 30./ 46.* zfact |
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281 | END DO |
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282 | END DO |
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283 | END DO |
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284 | |
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285 | # if defined key_trc_diaadd |
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286 | DO jj = 1,jpj |
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287 | DO ji = 1,jpi |
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288 | trc2d(ji,jj,13) = znitrpot(ji,jj,1) * 1.e-7 * fse3t(ji,jj,1) * 1.e+3 / rfact2 |
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289 | trc2d(ji,jj,12) = zirondep(ji,jj,1) * 1.e+3 * rfact2r * fse3t(ji,jj,1) |
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290 | END DO |
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291 | END DO |
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292 | # endif |
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293 | ! |
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294 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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295 | WRITE(charout, FMT="('sed ')") |
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296 | CALL prt_ctl_trc_info(charout) |
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297 | CALL prt_ctl_trc(tab4d=trn, mask=tmask, clinfo=ctrcnm) |
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298 | ENDIF |
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299 | |
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300 | END SUBROUTINE p4z_sed |
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301 | |
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302 | #else |
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303 | !!====================================================================== |
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304 | !! Dummy module : No PISCES bio-model |
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305 | !!====================================================================== |
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306 | CONTAINS |
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307 | SUBROUTINE p4z_sed ! Empty routine |
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308 | END SUBROUTINE p4z_sed |
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309 | #endif |
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310 | |
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311 | !!====================================================================== |
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312 | END MODULE p4zsed |
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