[186] | 1 | CDIR$ LIST |
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| 2 | SUBROUTINE p4zmicro |
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| 3 | #if defined key_passivetrc && defined key_trc_pisces |
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| 4 | CCC--------------------------------------------------------------------- |
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| 5 | CCC |
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| 6 | CCC ROUTINE p4zmicro : PISCES MODEL |
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| 7 | CCC ******************************* |
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| 8 | CCC |
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| 9 | CCC PURPOSE : |
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| 10 | CCC --------- |
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| 11 | CCC Compute the sources/sinks for microzooplankton |
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| 12 | CCC |
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| 13 | CC INPUT : |
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| 14 | CC ----- |
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| 15 | CC argument |
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| 16 | CC None |
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| 17 | CC common |
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| 18 | CC all the common defined in opa |
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| 19 | CC |
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| 20 | CC |
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| 21 | CC OUTPUT : : no |
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| 22 | CC ------ |
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| 23 | CC |
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| 24 | CC EXTERNAL : |
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| 25 | CC -------- |
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| 26 | CC None |
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| 27 | CC |
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| 28 | CC MODIFICATIONS: |
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| 29 | CC -------------- |
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| 30 | CC original : O. Aumont (2004) |
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| 31 | CC---------------------------------------------------------------------- |
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| 32 | CC parameters and commons |
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| 33 | CC ====================== |
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| 34 | CDIR$ NOLIST |
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| 35 | USE oce_trc |
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| 36 | USE trp_trc |
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| 37 | USE sms |
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| 38 | IMPLICIT NONE |
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| 39 | CDIR$ LIST |
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| 40 | CC---------------------------------------------------------------------- |
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| 41 | CC local declarations |
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| 42 | CC ================== |
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| 43 | INTEGER ji, jj, jk |
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| 44 | REAL compadi,compadi2,compaz,compaph,compapoc |
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[339] | 45 | REAL graze,zdenom,zdenom2 |
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| 46 | REAL zfact,zstep,zinano,zidiat,zipoc |
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[186] | 47 | C |
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[339] | 48 | C Time step duration for biology |
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| 49 | C ------------------------------ |
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| 50 | C |
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| 51 | zstep=rfact2/rjjss |
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| 52 | C |
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[186] | 53 | |
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| 54 | DO jk = 1,jpkm1 |
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| 55 | DO jj = 1,jpj |
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| 56 | DO ji = 1,jpi |
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| 57 | C |
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| 58 | compaz = max((trn(ji,jj,jk,jpzoo)-1.E-9),0.) |
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[339] | 59 | zfact=zstep*tgfunc(ji,jj,jk)*compaz |
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| 60 | # if defined key_off_degrad |
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| 61 | & *facvol(ji,jj,jk) |
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| 62 | # endif |
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[186] | 63 | C |
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| 64 | C Respiration rates of both zooplankton |
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| 65 | C ------------------------------------- |
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| 66 | C |
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[339] | 67 | respz(ji,jj,jk) = resrat*zfact |
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| 68 | & *(1.+3.*nitrfac(ji,jj,jk)) |
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[186] | 69 | & *trn(ji,jj,jk,jpzoo)/(xkmort+trn(ji,jj,jk,jpzoo)) |
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| 70 | C |
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| 71 | C Zooplankton mortality. A square function has been selected with |
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| 72 | C no real reason except that it seems to be more stable and may |
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| 73 | C mimic predation. |
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| 74 | C --------------------------------------------------------------- |
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| 75 | C |
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[339] | 76 | tortz(ji,jj,jk) = mzrat*1E6*zfact*trn(ji,jj,jk,jpzoo) |
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| 77 | C |
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[186] | 78 | END DO |
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| 79 | END DO |
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| 80 | END DO |
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| 81 | C |
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| 82 | DO jk = 1,jpkm1 |
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| 83 | DO jj = 1,jpj |
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| 84 | DO ji = 1,jpi |
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| 85 | C |
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| 86 | compadi = max((trn(ji,jj,jk,jpdia)-1E-8),0.) |
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[339] | 87 | compadi2=min(compadi,5.E-7) |
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| 88 | compaph = max((trn(ji,jj,jk,jpphy)-2E-7),0.) |
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| 89 | compapoc=max((trn(ji,jj,jk,jppoc)-1E-8),0.) |
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[186] | 90 | C |
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| 91 | C Microzooplankton grazing |
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| 92 | C ------------------------ |
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| 93 | C |
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[339] | 94 | zdenom2 = 1./(zprefp*compaph |
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| 95 | & +zprefc*compapoc+zprefd*compadi2+rtrn) |
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| 96 | |
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| 97 | graze = grazrat*zstep*tgfunc(ji,jj,jk) |
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| 98 | & *trn(ji,jj,jk,jpzoo) |
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[186] | 99 | # if defined key_off_degrad |
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| 100 | & *facvol(ji,jj,jk) |
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| 101 | # endif |
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| 102 | |
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[339] | 103 | zinano=zprefp*compaph*zdenom2 |
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| 104 | zipoc=zprefc*compapoc*zdenom2 |
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| 105 | zidiat=zprefd*compadi2*zdenom2 |
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[186] | 106 | |
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[339] | 107 | zdenom = 1./(xkgraz+zinano*compaph |
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| 108 | & +zipoc*compapoc+zidiat*compadi2) |
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[186] | 109 | |
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| 110 | grazp(ji,jj,jk) = graze*zinano*compaph*zdenom |
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[339] | 111 | grazm(ji,jj,jk) = graze*zipoc*compapoc*zdenom |
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| 112 | grazsd(ji,jj,jk) = graze*zidiat*compadi2*zdenom |
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[186] | 113 | |
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| 114 | grazpf(ji,jj,jk) = grazp(ji,jj,jk)* |
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| 115 | & trn(ji,jj,jk,jpnfe)/(trn(ji,jj,jk,jpphy)+rtrn) |
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| 116 | |
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| 117 | grazpch(ji,jj,jk) = grazp(ji,jj,jk)* |
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| 118 | & trn(ji,jj,jk,jpnch)/(trn(ji,jj,jk,jpphy)+rtrn) |
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| 119 | |
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| 120 | grazmf(ji,jj,jk) = grazm(ji,jj,jk) |
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| 121 | & *trn(ji,jj,jk,jpsfe)/(trn(ji,jj,jk,jppoc)+rtrn) |
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| 122 | |
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| 123 | grazsf(ji,jj,jk) = grazsd(ji,jj,jk) |
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| 124 | & *trn(ji,jj,jk,jpdfe)/(trn(ji,jj,jk,jpdia)+rtrn) |
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| 125 | |
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| 126 | grazss(ji,jj,jk) = grazsd(ji,jj,jk) |
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| 127 | & *trn(ji,jj,jk,jpbsi)/(trn(ji,jj,jk,jpdia)+rtrn) |
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| 128 | |
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| 129 | grazsch(ji,jj,jk) = grazsd(ji,jj,jk) |
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| 130 | & *trn(ji,jj,jk,jpdch)/(trn(ji,jj,jk,jpdia)+rtrn) |
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| 131 | C |
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| 132 | END DO |
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| 133 | END DO |
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| 134 | END DO |
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| 135 | C |
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| 136 | DO jk = 1,jpkm1 |
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| 137 | DO jj = 1,jpj |
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| 138 | DO ji = 1,jpi |
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| 139 | C |
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| 140 | C Various remineralization and excretion terms |
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| 141 | C -------------------------------------------- |
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| 142 | C |
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| 143 | grarem(ji,jj,jk)=(grazp(ji,jj,jk)+grazm(ji,jj,jk) |
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| 144 | & +grazsd(ji,jj,jk))*(1.-epsher-unass) |
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| 145 | |
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| 146 | grafer(ji,jj,jk)=(grazpf(ji,jj,jk)+grazsf(ji,jj,jk) |
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| 147 | & +grazmf(ji,jj,jk))*(1.-epsher-unass) |
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| 148 | & +(grazm(ji,jj,jk)*max((trn(ji,jj,jk,jpsfe)/ |
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| 149 | & (trn(ji,jj,jk,jppoc)+rtrn)-ferat3),0.) |
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| 150 | & +grazp(ji,jj,jk)*max((trn(ji,jj,jk,jpnfe)/ |
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| 151 | & (trn(ji,jj,jk,jpphy)+rtrn)-ferat3),0.) |
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| 152 | & +grazsd(ji,jj,jk)*max((trn(ji,jj,jk,jpdfe)/ |
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| 153 | & (trn(ji,jj,jk,jpdia)+rtrn)-ferat3),0.))*epsher |
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| 154 | |
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| 155 | grapoc(ji,jj,jk)=(grazp(ji,jj,jk)+grazm(ji,jj,jk) |
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| 156 | & +grazsd(ji,jj,jk))*unass |
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| 157 | C |
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| 158 | END DO |
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| 159 | END DO |
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| 160 | END DO |
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| 161 | C |
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| 162 | #endif |
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| 163 | RETURN |
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| 164 | END |
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