[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 p4zdiat |
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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 p4zdiat : 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 diatoms |
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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,compadi |
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| 50 | C |
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| 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 | C Aggregation term for diatoms is increased in case of nutrient |
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| 57 | C stress as observed in reality. The stressed cells become more |
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| 58 | C sticky and coagulate to sink quickly out of the euphotic zone |
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| 59 | C ------------------------------------------------------------ |
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| 60 | C |
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| 61 | DO jk = 1,jpkm1 |
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| 62 | DO jj = 1,jpj |
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| 63 | DO ji = 1,jpi |
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| 64 | C |
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| 65 | compadi = max((trn(ji,jj,jk,jpdia)-1E-8),0.) |
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[339] | 66 | zfact=1./(trn(ji,jj,jk,jpdia)+rtrn) |
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[186] | 67 | C |
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| 68 | C Aggregation term for diatoms is increased in case of nutrient |
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| 69 | C stress as observed in reality. The stressed cells become more |
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| 70 | C sticky and coagulate to sink quickly out of the euphotic zone |
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| 71 | C ------------------------------------------------------------ |
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| 72 | C |
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[339] | 73 | respp2(ji,jj,jk) = 1E6*zstep |
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| 74 | & *(wchl+wchld*(1.-xlimdia(ji,jj,jk))) |
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| 75 | & *zdiss(ji,jj,jk)*compadi*trn(ji,jj,jk,jpdia) |
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[186] | 76 | # if defined key_off_degrad |
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| 77 | & *facvol(ji,jj,jk) |
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| 78 | # endif |
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[339] | 79 | |
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[186] | 80 | respds(ji,jj,jk) = respp2(ji,jj,jk) |
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[339] | 81 | & *trn(ji,jj,jk,jpbsi)*zfact |
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[186] | 82 | |
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| 83 | respdf(ji,jj,jk) = respp2(ji,jj,jk) |
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[339] | 84 | & *trn(ji,jj,jk,jpdfe)*zfact |
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| 85 | |
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[186] | 86 | respdch(ji,jj,jk)=respp2(ji,jj,jk) |
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[339] | 87 | & *trn(ji,jj,jk,jpdch)*zfact |
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[186] | 88 | C |
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| 89 | C Phytoplankton mortality. |
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| 90 | C ------------------------ |
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| 91 | C |
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[339] | 92 | tortp2(ji,jj,jk) = mprat2*zstep*trn(ji,jj,jk,jpdia) |
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| 93 | & /(xkmort+trn(ji,jj,jk,jpdia))*compadi |
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[186] | 94 | # if defined key_off_degrad |
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| 95 | & *facvol(ji,jj,jk) |
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| 96 | # endif |
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| 97 | |
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| 98 | tortds(ji,jj,jk) = tortp2(ji,jj,jk) |
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[339] | 99 | & *trn(ji,jj,jk,jpbsi)*zfact |
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[186] | 100 | |
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| 101 | tortdf(ji,jj,jk)=tortp2(ji,jj,jk) |
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[339] | 102 | & *trn(ji,jj,jk,jpdfe)*zfact |
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[186] | 103 | |
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| 104 | tortdch(ji,jj,jk)=tortp2(ji,jj,jk) |
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[339] | 105 | & *trn(ji,jj,jk,jpdch)*zfact |
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[186] | 106 | C |
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| 107 | END DO |
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| 108 | END DO |
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| 109 | END DO |
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| 110 | C |
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| 111 | #endif |
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| 112 | RETURN |
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| 113 | END |
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