[341] | 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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[186] | 6 | CDIR$ LIST |
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| 7 | SUBROUTINE p4zprod |
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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 p4zprod : 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 phytoplankton production depending on |
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| 17 | CCC light, temperature and nutrient availability |
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| 18 | CCC |
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| 19 | CC INPUT : |
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| 20 | CC ----- |
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| 21 | CC argument |
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| 22 | CC None |
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| 23 | CC common |
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| 24 | CC all the common defined in opa |
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| 25 | CC |
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| 26 | CC |
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| 27 | CC OUTPUT : : no |
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| 28 | CC ------ |
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| 29 | CC |
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| 30 | CC EXTERNAL : |
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| 31 | CC -------- |
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| 32 | CC p4zday |
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| 33 | CC |
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| 34 | CC MODIFICATIONS: |
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| 35 | CC -------------- |
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| 36 | CC original : O. Aumont (2004) |
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| 37 | CC---------------------------------------------------------------------- |
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| 38 | CC parameters and commons |
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| 39 | CC ====================== |
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| 40 | CDIR$ NOLIST |
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| 41 | USE oce_trc |
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| 42 | USE trp_trc |
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| 43 | USE sms |
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| 44 | IMPLICIT NONE |
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[339] | 45 | #include "domzgr_substitute.h90" |
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[186] | 46 | CDIR$ LIST |
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| 47 | CC---------------------------------------------------------------------- |
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| 48 | CC local declarations |
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| 49 | CC ================== |
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| 50 | INTEGER ji, jj, jk |
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| 51 | REAL silfac,pislopen(jpi,jpj,jpk),pislope2n(jpi,jpj,jpk) |
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[339] | 52 | REAL zmixnano(jpi,jpj),zmixdiat(jpi,jpj),zfact |
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[186] | 53 | REAL prdiachl,prbiochl,silim,ztn,zadap,zadap2 |
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| 54 | REAL ysopt(jpi,jpj,jpk),pislopead(jpi,jpj,jpk) |
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| 55 | REAL prdia(jpi,jpj,jpk),prbio(jpi,jpj,jpk) |
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| 56 | REAL etot2(jpi,jpj,jpk),pislopead2(jpi,jpj,jpk) |
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[339] | 57 | REAL xlim,silfac2,siborn,zprod,zprod2 |
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| 58 | REAL zmxltst,zmxlday |
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| 59 | C |
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[186] | 60 | C Computation of the optimal production |
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| 61 | C ------------------------------------- |
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| 62 | C |
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| 63 | C |
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| 64 | prmax(:,:,:)=0.6/rjjss*tgfunc(:,:,:) |
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| 65 | # if defined key_off_degrad |
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| 66 | & *facvol(:,:,:) |
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| 67 | # endif |
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| 68 | C |
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| 69 | C Computation of the day length |
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| 70 | C ----------------------------- |
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| 71 | C |
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| 72 | call p4zday |
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| 73 | |
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[339] | 74 | DO jk = 1,jpkm1 |
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| 75 | DO jj = 1,jpj |
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| 76 | DO ji = 1,jpi |
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[186] | 77 | C |
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| 78 | C Computation of the P-I slope for nanos and diatoms |
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| 79 | C -------------------------------------------------- |
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| 80 | C |
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| 81 | ztn=max(0.,tn(ji,jj,jk)-15.) |
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[339] | 82 | zadap=1.+2.*ztn/(2.+ztn) |
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| 83 | zadap2=1. |
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[186] | 84 | |
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| 85 | zfact=exp(-0.21*emoy(ji,jj,jk)) |
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| 86 | |
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| 87 | pislopead(ji,jj,jk)=pislope*(1.+zadap*zfact) |
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| 88 | pislopead2(ji,jj,jk)=pislope2*(1.+zadap2*zfact) |
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| 89 | |
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| 90 | pislopen(ji,jj,jk)=pislopead(ji,jj,jk) |
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| 91 | & *trn(ji,jj,jk,jpnch)/(rtrn+trn(ji,jj,jk,jpphy)*12.) |
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| 92 | & /(prmax(ji,jj,jk)*rjjss*xlimphy(ji,jj,jk)+rtrn) |
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| 93 | |
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| 94 | pislope2n(ji,jj,jk)=pislopead2(ji,jj,jk) |
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| 95 | & *trn(ji,jj,jk,jpdch)/(rtrn+trn(ji,jj,jk,jpdia)*12.) |
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| 96 | & /(prmax(ji,jj,jk)*rjjss*xlimdia(ji,jj,jk)+rtrn) |
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| 97 | C |
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| 98 | END DO |
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| 99 | END DO |
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| 100 | END DO |
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| 101 | |
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[339] | 102 | DO jk = 1,jpkm1 |
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[186] | 103 | DO jj = 1,jpj |
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| 104 | DO ji = 1,jpi |
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| 105 | C |
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| 106 | C Computation of production function |
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| 107 | C ---------------------------------- |
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| 108 | C |
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| 109 | prbio(ji,jj,jk) = prmax(ji,jj,jk) |
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| 110 | & *(1.-exp(-pislopen(ji,jj,jk)*etot(ji,jj,jk))) |
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| 111 | prdia(ji,jj,jk) = prmax(ji,jj,jk) |
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| 112 | & *(1.-exp(-pislope2n(ji,jj,jk)*etot(ji,jj,jk))) |
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| 113 | |
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| 114 | END DO |
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| 115 | END DO |
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| 116 | END DO |
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| 117 | |
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[339] | 118 | DO jk = 1,jpkm1 |
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[186] | 119 | DO jj = 1,jpj |
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| 120 | DO ji = 1,jpi |
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| 121 | C |
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| 122 | C Si/C of diatoms |
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| 123 | C ------------------------ |
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| 124 | C Si/C increases with iron stress and silicate availability |
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| 125 | C Si/C is arbitrariliy increased for very high Si concentrations |
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| 126 | C to mimic the very high ratios observed in the Southern Ocean |
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| 127 | c (silpot2) |
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| 128 | C |
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[339] | 129 | C |
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| 130 | xlim=xdiatno3(ji,jj,jk)+xdiatnh4(ji,jj,jk) |
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| 131 | C |
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| 132 | silim=min(prdia(ji,jj,jk)/(rtrn+prmax(ji,jj,jk)), |
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| 133 | & trn(ji,jj,jk,jpfer)/(concdfe(ji,jj,jk)+trn(ji,jj,jk,jpfer)), |
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| 134 | & trn(ji,jj,jk,jppo4)/(concdnh4+trn(ji,jj,jk,jppo4)), |
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| 135 | & xlim) |
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[186] | 136 | silfac=5.4*exp(-4.23*silim)+1.13 |
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| 137 | siborn=max(0.,(trn(ji,jj,jk,jpsil)-15.E-6)) |
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[339] | 138 | silfac2=1.+3.*siborn/(siborn+xksi2) |
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| 139 | silfac=min(7.6,silfac*silfac2) |
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[186] | 140 | C |
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| 141 | ysopt(ji,jj,jk)=grosip*trn(ji,jj,jk,jpsil)/(trn(ji,jj,jk,jpsil) |
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[339] | 142 | $ +xksi1)*silfac |
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[186] | 143 | C |
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| 144 | END DO |
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| 145 | END DO |
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| 146 | END DO |
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[339] | 147 | C |
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| 148 | C Computation of the limitation term due to |
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| 149 | C A mixed layer deeper than the euphotic depth |
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| 150 | C -------------------------------------------- |
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| 151 | C |
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| 152 | DO jj=1,jpj |
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| 153 | DO ji=1,jpi |
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| 154 | zmxltst=max(0.,hmld(ji,jj)-zmeu(ji,jj)) |
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| 155 | zmxlday=zmxltst**2/rjjss |
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| 156 | zmixnano(ji,jj)=1.-zmxlday/(12.+zmxlday) |
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| 157 | zmixdiat(ji,jj)=1.-zmxlday/(36.+zmxlday) |
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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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[186] | 162 | DO jj = 1,jpj |
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| 163 | DO ji = 1,jpi |
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[339] | 164 | if (fsdepw(ji,jj,jk+1).le.hmld(ji,jj)) then |
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| 165 | C |
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[186] | 166 | C Mixed-layer effect on production |
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| 167 | C -------------------------------- |
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| 168 | C |
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[339] | 169 | prbio(ji,jj,jk)=prbio(ji,jj,jk)*zmixnano(ji,jj) |
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| 170 | prdia(ji,jj,jk)=prdia(ji,jj,jk)*zmixdiat(ji,jj) |
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| 171 | endif |
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[186] | 172 | END DO |
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| 173 | END DO |
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| 174 | END DO |
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[339] | 175 | C |
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| 176 | DO jk = 1,jpkm1 |
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[186] | 177 | DO jj = 1,jpj |
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| 178 | DO ji = 1,jpi |
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| 179 | C |
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| 180 | C Computation of the maximum light intensity |
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| 181 | C ------------------------------------------ |
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| 182 | C |
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| 183 | etot2(ji,jj,jk)=etot(ji,jj,jk)*24./(strn(ji,jj)+rtrn) |
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| 184 | IF (strn(ji,jj).lt.1.) etot2(ji,jj,jk)=etot(ji,jj,jk) |
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| 185 | C |
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| 186 | END DO |
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| 187 | END DO |
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| 188 | END DO |
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| 189 | |
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[339] | 190 | DO jk = 1,jpkm1 |
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[186] | 191 | DO jj = 1,jpj |
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| 192 | DO ji = 1,jpi |
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| 193 | C |
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| 194 | C Computation of the various production terms for nanophyto. |
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| 195 | C ---------------------------------------------------------- |
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| 196 | C |
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| 197 | prbiochl = prmax(ji,jj,jk) |
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| 198 | & *(1.-exp(-pislopen(ji,jj,jk)*etot2(ji,jj,jk))) |
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| 199 | |
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| 200 | prorca(ji,jj,jk) = prbio(ji,jj,jk) |
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| 201 | & *xlimphy(ji,jj,jk)*trn(ji,jj,jk,jpphy)*rfact2 |
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| 202 | |
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| 203 | pronew(ji,jj,jk)=prorca(ji,jj,jk)*xnanono3(ji,jj,jk) |
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| 204 | & /(xnanono3(ji,jj,jk)+xnanonh4(ji,jj,jk)+rtrn) |
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| 205 | proreg(ji,jj,jk)=prorca(ji,jj,jk)-pronew(ji,jj,jk) |
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| 206 | C |
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| 207 | zprod=rjjss*prorca(ji,jj,jk)*prbiochl*trn(ji,jj,jk,jpphy) |
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| 208 | & *xlimphy(ji,jj,jk) |
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| 209 | |
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[339] | 210 | zprod2=rjjss*prorca(ji,jj,jk)*prbiochl*trn(ji,jj,jk,jpphy) |
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| 211 | & *max(0.1,xlimphy(ji,jj,jk)) |
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| 212 | |
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| 213 | prorca5(ji,jj,jk) = (fecnm)**2*zprod/chlcnm |
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[186] | 214 | & /(pislopead(ji,jj,jk)*etot2(ji,jj,jk)*trn(ji,jj,jk,jpnfe) |
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| 215 | & +rtrn) |
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| 216 | |
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[339] | 217 | prorca6(ji,jj,jk) = chlcnm*144.*zprod2/(pislopead(ji,jj,jk) |
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[186] | 218 | & *etot2(ji,jj,jk)*max(trn(ji,jj,jk,jpnch),1.E-10)+rtrn) |
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| 219 | |
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| 220 | END DO |
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| 221 | END DO |
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| 222 | END DO |
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| 223 | |
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[339] | 224 | DO jk = 1,jpkm1 |
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[186] | 225 | DO jj = 1,jpj |
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| 226 | DO ji = 1,jpi |
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| 227 | C |
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| 228 | C Computation of the various production terms for diatoms |
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| 229 | C ------------------------------------------------------- |
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| 230 | C |
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| 231 | prdiachl = prmax(ji,jj,jk) |
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| 232 | & *(1.-exp(-etot2(ji,jj,jk)*pislope2n(ji,jj,jk))) |
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| 233 | C |
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| 234 | prorca2(ji,jj,jk) = prdia(ji,jj,jk) |
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| 235 | & *xlimdia(ji,jj,jk)*trn(ji,jj,jk,jpdia)*rfact2 |
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| 236 | C |
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| 237 | pronew2(ji,jj,jk)=prorca2(ji,jj,jk)*xdiatno3(ji,jj,jk) |
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| 238 | & /(xdiatno3(ji,jj,jk)+xdiatnh4(ji,jj,jk)+rtrn) |
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| 239 | proreg2(ji,jj,jk)=prorca2(ji,jj,jk)-pronew2(ji,jj,jk) |
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| 240 | prorca3(ji,jj,jk) = prorca2(ji,jj,jk)*ysopt(ji,jj,jk) |
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| 241 | C |
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[339] | 242 | zprod=rjjss*prorca2(ji,jj,jk)*prdiachl*trn(ji,jj,jk,jpdia) |
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| 243 | & *max(0.1,xlimdia(ji,jj,jk)) |
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| 244 | |
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| 245 | zprod2=rjjss*prorca2(ji,jj,jk)*prdiachl*xlimdia2(ji,jj,jk) |
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[186] | 246 | & *trn(ji,jj,jk,jpdia) |
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[339] | 247 | |
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[186] | 248 | C |
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[339] | 249 | prorca4(ji,jj,jk) = (fecdm)**2*zprod2/chlcdm |
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[186] | 250 | & /(pislopead2(ji,jj,jk)*etot2(ji,jj,jk)*trn(ji,jj,jk,jpdfe) |
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| 251 | & +rtrn) |
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| 252 | C |
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[339] | 253 | prorca7(ji,jj,jk) = chlcdm*144.*zprod/(pislopead2(ji,jj,jk) |
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[186] | 254 | & *etot2(ji,jj,jk)*max(trn(ji,jj,jk,jpdch),1.E-10)+rtrn) |
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| 255 | C |
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| 256 | END DO |
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| 257 | END DO |
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| 258 | END DO |
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| 259 | C |
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| 260 | #endif |
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| 261 | RETURN |
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| 262 | END |
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[339] | 263 | |
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