1 | |
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2 | CCC $Header$ |
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3 | CCC TOP 1.0 , LOCEAN-IPSL (2005) |
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4 | C This software is governed by CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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5 | C --------------------------------------------------------------------------- |
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6 | CDIR$ LIST |
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7 | SUBROUTINE p4zmicro |
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8 | #if defined key_passivetrc && defined key_trc_pisces |
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9 | CCC--------------------------------------------------------------------- |
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10 | CCC |
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11 | CCC ROUTINE p4zmicro : PISCES MODEL |
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12 | CCC ******************************* |
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13 | CCC |
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14 | CCC PURPOSE : |
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15 | CCC --------- |
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16 | CCC Compute the sources/sinks for microzooplankton |
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17 | CCC |
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18 | CC INPUT : |
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19 | CC ----- |
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20 | CC argument |
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21 | CC None |
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22 | CC common |
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23 | CC all the common defined in opa |
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24 | CC |
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25 | CC |
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26 | CC OUTPUT : : no |
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27 | CC ------ |
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28 | CC |
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29 | CC EXTERNAL : |
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30 | CC -------- |
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31 | CC None |
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32 | CC |
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33 | CC MODIFICATIONS: |
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34 | CC -------------- |
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35 | CC original : O. Aumont (2004) |
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36 | CC---------------------------------------------------------------------- |
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37 | CC parameters and commons |
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38 | CC ====================== |
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39 | CDIR$ NOLIST |
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40 | USE oce_trc |
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41 | USE trp_trc |
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42 | USE sms |
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43 | IMPLICIT NONE |
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44 | CDIR$ LIST |
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45 | CC---------------------------------------------------------------------- |
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46 | CC local declarations |
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47 | CC ================== |
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48 | INTEGER ji, jj, jk |
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49 | REAL compadi,compadi2,compaz,compaph,compapoc |
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50 | REAL graze,zdenom,zdenom2 |
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51 | REAL zfact,zstep,zinano,zidiat,zipoc |
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52 | C |
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53 | C Time step duration for biology |
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54 | C ------------------------------ |
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55 | C |
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56 | zstep=rfact2/rjjss |
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57 | C |
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58 | |
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59 | DO jk = 1,jpkm1 |
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60 | DO jj = 1,jpj |
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61 | DO ji = 1,jpi |
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62 | C |
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63 | compaz = max((trn(ji,jj,jk,jpzoo)-1.E-9),0.) |
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64 | zfact=zstep*tgfunc(ji,jj,jk)*compaz |
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65 | # if defined key_off_degrad |
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66 | & *facvol(ji,jj,jk) |
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67 | # endif |
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68 | C |
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69 | C Respiration rates of both zooplankton |
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70 | C ------------------------------------- |
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71 | C |
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72 | respz(ji,jj,jk) = resrat*zfact |
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73 | & *(1.+3.*nitrfac(ji,jj,jk)) |
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74 | & *trn(ji,jj,jk,jpzoo)/(xkmort+trn(ji,jj,jk,jpzoo)) |
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75 | C |
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76 | C Zooplankton mortality. A square function has been selected with |
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77 | C no real reason except that it seems to be more stable and may |
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78 | C mimic predation. |
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79 | C --------------------------------------------------------------- |
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80 | C |
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81 | tortz(ji,jj,jk) = mzrat*1E6*zfact*trn(ji,jj,jk,jpzoo) |
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82 | C |
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83 | END DO |
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84 | END DO |
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85 | END DO |
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86 | C |
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87 | DO jk = 1,jpkm1 |
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88 | DO jj = 1,jpj |
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89 | DO ji = 1,jpi |
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90 | C |
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91 | compadi = max((trn(ji,jj,jk,jpdia)-1E-8),0.) |
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92 | compadi2=min(compadi,5.E-7) |
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93 | compaph = max((trn(ji,jj,jk,jpphy)-2E-7),0.) |
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94 | compapoc=max((trn(ji,jj,jk,jppoc)-1E-8),0.) |
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95 | C |
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96 | C Microzooplankton grazing |
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97 | C ------------------------ |
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98 | C |
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99 | zdenom2 = 1./(zprefp*compaph |
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100 | & +zprefc*compapoc+zprefd*compadi2+rtrn) |
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101 | |
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102 | graze = grazrat*zstep*tgfunc(ji,jj,jk) |
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103 | & *trn(ji,jj,jk,jpzoo) |
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104 | # if defined key_off_degrad |
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105 | & *facvol(ji,jj,jk) |
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106 | # endif |
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107 | |
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108 | zinano=zprefp*compaph*zdenom2 |
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109 | zipoc=zprefc*compapoc*zdenom2 |
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110 | zidiat=zprefd*compadi2*zdenom2 |
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111 | |
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112 | zdenom = 1./(xkgraz+zinano*compaph |
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113 | & +zipoc*compapoc+zidiat*compadi2) |
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114 | |
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115 | grazp(ji,jj,jk) = graze*zinano*compaph*zdenom |
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116 | grazm(ji,jj,jk) = graze*zipoc*compapoc*zdenom |
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117 | grazsd(ji,jj,jk) = graze*zidiat*compadi2*zdenom |
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118 | |
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119 | grazpf(ji,jj,jk) = grazp(ji,jj,jk)* |
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120 | & trn(ji,jj,jk,jpnfe)/(trn(ji,jj,jk,jpphy)+rtrn) |
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121 | |
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122 | grazpch(ji,jj,jk) = grazp(ji,jj,jk)* |
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123 | & trn(ji,jj,jk,jpnch)/(trn(ji,jj,jk,jpphy)+rtrn) |
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124 | |
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125 | grazmf(ji,jj,jk) = grazm(ji,jj,jk) |
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126 | & *trn(ji,jj,jk,jpsfe)/(trn(ji,jj,jk,jppoc)+rtrn) |
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127 | |
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128 | grazsf(ji,jj,jk) = grazsd(ji,jj,jk) |
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129 | & *trn(ji,jj,jk,jpdfe)/(trn(ji,jj,jk,jpdia)+rtrn) |
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130 | |
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131 | grazss(ji,jj,jk) = grazsd(ji,jj,jk) |
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132 | & *trn(ji,jj,jk,jpbsi)/(trn(ji,jj,jk,jpdia)+rtrn) |
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133 | |
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134 | grazsch(ji,jj,jk) = grazsd(ji,jj,jk) |
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135 | & *trn(ji,jj,jk,jpdch)/(trn(ji,jj,jk,jpdia)+rtrn) |
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136 | C |
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137 | END DO |
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138 | END DO |
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139 | END DO |
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140 | C |
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141 | DO jk = 1,jpkm1 |
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142 | DO jj = 1,jpj |
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143 | DO ji = 1,jpi |
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144 | C |
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145 | C Various remineralization and excretion terms |
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146 | C -------------------------------------------- |
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147 | C |
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148 | grarem(ji,jj,jk)=(grazp(ji,jj,jk)+grazm(ji,jj,jk) |
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149 | & +grazsd(ji,jj,jk))*(1.-epsher-unass) |
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150 | |
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151 | grafer(ji,jj,jk)=(grazpf(ji,jj,jk)+grazsf(ji,jj,jk) |
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152 | & +grazmf(ji,jj,jk))*(1.-epsher-unass) |
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153 | & +(grazm(ji,jj,jk)*max((trn(ji,jj,jk,jpsfe)/ |
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154 | & (trn(ji,jj,jk,jppoc)+rtrn)-ferat3),0.) |
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155 | & +grazp(ji,jj,jk)*max((trn(ji,jj,jk,jpnfe)/ |
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156 | & (trn(ji,jj,jk,jpphy)+rtrn)-ferat3),0.) |
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157 | & +grazsd(ji,jj,jk)*max((trn(ji,jj,jk,jpdfe)/ |
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158 | & (trn(ji,jj,jk,jpdia)+rtrn)-ferat3),0.))*epsher |
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159 | |
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160 | grapoc(ji,jj,jk)=(grazp(ji,jj,jk)+grazm(ji,jj,jk) |
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161 | & +grazsd(ji,jj,jk))*unass |
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162 | C |
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163 | END DO |
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164 | END DO |
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165 | END DO |
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166 | C |
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167 | #endif |
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168 | RETURN |
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169 | END |
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