[341] | 1 | |
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[719] | 2 | CCC $Header$ |
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[341] | 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 p4znano |
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[772] | 8 | #if defined key_top && defined key_pisces |
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[186] | 9 | CCC--------------------------------------------------------------------- |
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| 10 | CCC |
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| 11 | CCC ROUTINE p4znano : 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 mortality terms for nanophytoplankton |
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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 (2002) |
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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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[339] | 49 | REAL zfact,zstep,compaph |
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[186] | 50 | C |
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[339] | 51 | C Time step duration for biology |
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| 52 | C ------------------------------ |
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| 53 | C |
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| 54 | zstep=rfact2/rjjss |
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| 55 | C |
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[186] | 56 | DO jk = 1,jpkm1 |
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| 57 | DO jj = 1,jpj |
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| 58 | DO ji = 1,jpi |
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| 59 | C |
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| 60 | compaph = max((trn(ji,jj,jk,jpphy)-1E-8),0.) |
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[339] | 61 | zfact=1./(trn(ji,jj,jk,jpphy)+rtrn) |
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[186] | 62 | C |
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| 63 | C Squared mortality of Phyto similar to a sedimentation term during |
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| 64 | C blooms (Doney et al. 1996) |
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| 65 | C ----------------------------------------------------------------- |
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| 66 | C |
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[339] | 67 | respp(ji,jj,jk) = wchl*1e6*zstep*zdiss(ji,jj,jk) |
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| 68 | & *compaph*trn(ji,jj,jk,jpphy) |
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[186] | 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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[339] | 72 | |
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[186] | 73 | respnf(ji,jj,jk) = respp(ji,jj,jk) |
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[339] | 74 | & *trn(ji,jj,jk,jpnfe)*zfact |
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| 75 | |
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[186] | 76 | respnch(ji,jj,jk) = respp(ji,jj,jk) |
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[339] | 77 | & *trn(ji,jj,jk,jpnch)*zfact |
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| 78 | C |
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[186] | 79 | C Phytoplankton mortality. This mortality loss is slightly |
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| 80 | C increased when nutrients are limiting phytoplankton growth |
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| 81 | C as observed for instance in case of iron limitation. |
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| 82 | C ---------------------------------------------------------- |
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| 83 | C |
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[339] | 84 | tortp(ji,jj,jk) = mprat*zstep*trn(ji,jj,jk,jpphy) |
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| 85 | $ /(xkmort+trn(ji,jj,jk,jpphy))*compaph |
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[186] | 86 | # if defined key_off_degrad |
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| 87 | & *facvol(ji,jj,jk) |
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| 88 | # endif |
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[339] | 89 | |
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[186] | 90 | tortnf(ji,jj,jk)=tortp(ji,jj,jk) |
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[339] | 91 | & *trn(ji,jj,jk,jpnfe)*zfact |
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| 92 | |
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[186] | 93 | tortnch(ji,jj,jk)=tortp(ji,jj,jk) |
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[339] | 94 | & *trn(ji,jj,jk,jpnch)*zfact |
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[186] | 95 | C |
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| 96 | END DO |
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| 97 | END DO |
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| 98 | END DO |
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| 99 | C |
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| 100 | #endif |
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| 101 | RETURN |
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| 102 | END |
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