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 p4zmeso |
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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 p4zmeso : 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 mesozooplankton |
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17 | CCC |
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18 | CC METHOD : |
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19 | CC ------- |
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20 | CC |
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21 | CC |
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22 | CC INPUT : |
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23 | CC ----- |
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24 | CC argument |
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25 | CC None |
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26 | CC common |
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27 | CC all the common defined in opa |
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28 | CC |
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29 | CC |
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30 | CC OUTPUT : : no |
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31 | CC ------ |
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32 | CC |
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33 | CC EXTERNAL : |
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34 | CC -------- |
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35 | CC None |
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36 | CC |
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37 | CC MODIFICATIONS: |
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38 | CC -------------- |
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39 | CC original : O. Aumont (2002) |
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40 | CC---------------------------------------------------------------------- |
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41 | CC parameters and commons |
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42 | CC ====================== |
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43 | CDIR$ NOLIST |
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44 | USE oce_trc |
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45 | USE trp_trc |
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46 | USE sms |
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47 | IMPLICIT NONE |
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48 | CDIR$ LIST |
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49 | CC---------------------------------------------------------------------- |
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50 | CC local declarations |
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51 | CC ================== |
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52 | INTEGER ji, jj, jk |
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53 | REAL compadi,compaph,compapoc,compaz |
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54 | REAL zfact,zstep,compam,zdenom,graze2 |
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55 | C |
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56 | C |
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57 | C |
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58 | C Time step duration for biology |
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59 | C ------------------------------ |
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60 | C |
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61 | zstep=rfact2/rjjss |
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62 | C |
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63 | DO jk = 1,jpkm1 |
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64 | DO jj = 1,jpj |
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65 | DO ji = 1,jpi |
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66 | C |
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67 | compam=max((trn(ji,jj,jk,jpmes)-1.E-9),0.) |
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68 | zfact=zstep*tgfunc(ji,jj,jk)*compam |
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69 | # if defined key_off_degrad |
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70 | & *facvol(ji,jj,jk) |
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71 | # endif |
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72 | C |
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73 | C Respiration rates of both zooplankton |
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74 | C ------------------------------------- |
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75 | C |
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76 | respz2(ji,jj,jk) = resrat2*zfact |
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77 | & *(1.+3.*nitrfac(ji,jj,jk)) |
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78 | & *trn(ji,jj,jk,jpmes)/(xkmort+trn(ji,jj,jk,jpmes)) |
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79 | C |
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80 | C Zooplankton mortality. A square function has been selected with |
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81 | C no real reason except that it seems to be more stable and may |
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82 | C mimic predation. |
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83 | C --------------------------------------------------------------- |
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84 | C |
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85 | tortz2(ji,jj,jk) = mzrat2*1E6*zfact*trn(ji,jj,jk,jpmes) |
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86 | C |
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87 | END DO |
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88 | END DO |
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89 | END DO |
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90 | |
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91 | DO jk = 1,jpkm1 |
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92 | DO jj = 1,jpj |
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93 | DO ji = 1,jpi |
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94 | C |
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95 | compadi = max((trn(ji,jj,jk,jpdia)-1E-8),0.) |
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96 | compaz = max((trn(ji,jj,jk,jpzoo)-1.E-8),0.) |
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97 | compaph = max((trn(ji,jj,jk,jpphy)-2E-7),0.) |
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98 | compapoc=max((trn(ji,jj,jk,jppoc)-1E-8),0.) |
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99 | C |
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100 | C Microzooplankton grazing |
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101 | C ------------------------ |
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102 | C |
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103 | zdenom=1./(xkgraz2+xprefc*trn(ji,jj,jk,jpdia) |
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104 | & +xprefz*trn(ji,jj,jk,jpzoo) |
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105 | & +xprefp*trn(ji,jj,jk,jpphy) |
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106 | & +xprefpoc*trn(ji,jj,jk,jppoc)) |
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107 | |
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108 | graze2 = grazrat2*zstep*Tgfunc2(ji,jj,jk)*zdenom |
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109 | & *trn(ji,jj,jk,jpmes) |
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110 | # if defined key_off_degrad |
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111 | & *facvol(ji,jj,jk) |
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112 | # endif |
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113 | |
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114 | grazd(ji,jj,jk) = graze2*xprefc*compadi |
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115 | grazz(ji,jj,jk) = graze2*xprefz*compaz |
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116 | grazn(ji,jj,jk) = graze2*xprefp*compaph |
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117 | grazpoc(ji,jj,jk) = graze2*xprefpoc*compapoc |
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118 | |
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119 | graznf(ji,jj,jk) = grazn(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 | graznch(ji,jj,jk) = grazn(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 | grazs(ji,jj,jk) = grazd(ji,jj,jk) |
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126 | & *trn(ji,jj,jk,jpbsi)/(trn(ji,jj,jk,jpdia)+rtrn) |
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127 | |
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128 | grazf(ji,jj,jk) = grazd(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 | grazdch(ji,jj,jk) = grazd(ji,jj,jk) |
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132 | & *trn(ji,jj,jk,jpdch)/(trn(ji,jj,jk,jpdia)+rtrn) |
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133 | |
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134 | grazpof(ji,jj,jk) = grazpoc(ji,jj,jk) |
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135 | & *trn(ji,jj,jk,jpsfe)/(trn(ji,jj,jk,jppoc)+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 | |
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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 Mesozooplankton flux feeding on GOC |
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146 | C ---------------------------------- |
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147 | C |
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148 | grazffe(ji,jj,jk) = 5E3*zstep*wsbio4(ji,jj,jk) |
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149 | & *tgfunc2(ji,jj,jk)*trn(ji,jj,jk,jpgoc)*trn(ji,jj,jk,jpmes) |
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150 | # if defined key_off_degrad |
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151 | & *facvol(ji,jj,jk) |
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152 | # endif |
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153 | |
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154 | grazfff(ji,jj,jk) = grazffe(ji,jj,jk) |
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155 | & *trn(ji,jj,jk,jpbfe)/(trn(ji,jj,jk,jpgoc)+rtrn) |
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156 | C |
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157 | END DO |
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158 | END DO |
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159 | END DO |
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160 | |
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161 | DO jk = 1,jpkm1 |
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162 | DO jj = 1,jpj |
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163 | DO ji = 1,jpi |
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164 | C |
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165 | C Mesozooplankton efficiency |
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166 | C -------------------------- |
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167 | C |
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168 | grarem2(ji,jj,jk)=(grazd(ji,jj,jk)+grazz(ji,jj,jk) |
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169 | & +grazn(ji,jj,jk)+grazpoc(ji,jj,jk)+grazffe(ji,jj,jk)) |
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170 | & *(1.-epsher2-unass2) |
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171 | |
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172 | grafer2(ji,jj,jk)=(grazf(ji,jj,jk)+graznf(ji,jj,jk) |
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173 | & +grazz(ji,jj,jk)*ferat3+grazpof(ji,jj,jk) |
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174 | & +grazfff(ji,jj,jk))*(1.-epsher2-unass2) |
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175 | & +epsher2*(grazd(ji,jj,jk)*max( |
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176 | & (trn(ji,jj,jk,jpdfe)/(trn(ji,jj,jk,jpdia)+rtrn) |
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177 | & -ferat3),0.)+grazn(ji,jj,jk)*max( |
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178 | & (trn(ji,jj,jk,jpnfe)/(trn(ji,jj,jk,jpphy)+rtrn) |
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179 | & -ferat3),0.)+grazpoc(ji,jj,jk)*max( |
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180 | & (trn(ji,jj,jk,jpsfe)/(trn(ji,jj,jk,jppoc)+rtrn) |
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181 | & -ferat3),0.)+grazffe(ji,jj,jk)*max( |
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182 | & (trn(ji,jj,jk,jpbfe)/(trn(ji,jj,jk,jpgoc)+rtrn) |
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183 | & -ferat3),0.)) |
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184 | |
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185 | grapoc2(ji,jj,jk)=(grazd(ji,jj,jk)+grazz(ji,jj,jk) |
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186 | & +grazn(ji,jj,jk)+grazpoc(ji,jj,jk)+grazffe(ji,jj,jk))*unass2 |
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187 | |
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188 | END DO |
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189 | END DO |
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190 | END DO |
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191 | C |
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192 | #endif |
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193 | RETURN |
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194 | END |
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