[935] | 1 | MODULE p4zmeso |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4zmeso *** |
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| 4 | !! TOP : PISCES Compute the sources/sinks for mesozooplankton |
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| 5 | !!====================================================================== |
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| 6 | !! History : 1.0 ! 2002 (O. Aumont) Original code |
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| 7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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| 8 | !!---------------------------------------------------------------------- |
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| 9 | #if defined key_pisces |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! 'key_pisces' PISCES bio-model |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! p4z_meso : Compute the sources/sinks for mesozooplankton |
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| 14 | !! p4z_meso_init : Initialization of the parameters for mesozooplankton |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE trc |
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| 17 | USE oce_trc ! |
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| 18 | USE trp_trc ! |
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| 19 | USE sms ! |
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| 20 | USE prtctl_trc |
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| 21 | USE p4zint |
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| 22 | USE p4zsink |
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| 23 | |
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| 24 | IMPLICIT NONE |
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| 25 | PRIVATE |
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| 26 | |
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| 27 | PUBLIC p4z_meso ! called in p4zbio.F90 |
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| 28 | |
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| 29 | !! * Shared module variables |
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| 30 | REAL(wp), PUBLIC :: & |
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| 31 | xprefc = 1.0_wp , & !: |
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| 32 | xprefp = 0.2_wp , & !: |
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| 33 | xprefz = 1.0_wp , & !: |
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| 34 | xprefpoc = 0.0_wp , & !: |
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| 35 | resrat2 = 0.005_wp , & !: |
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| 36 | mzrat2 = 0.03_wp , & !: |
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| 37 | grazrat2 = 0.7_wp , & !: |
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| 38 | xkgraz2 = 20E-6_wp , & !: |
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| 39 | unass2 = 0.3_wp , & !: |
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| 40 | sigma2 = 0.6_wp , & !: |
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| 41 | epsher2 = 0.33_wp , & !: |
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| 42 | grazflux = 5.E3_wp |
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| 43 | |
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| 44 | |
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| 45 | !!* Substitution |
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| 46 | # include "domzgr_substitute.h90" |
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| 47 | !!---------------------------------------------------------------------- |
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| 48 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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| 49 | !! $Header:$ |
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| 50 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | |
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| 53 | CONTAINS |
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| 54 | |
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| 55 | SUBROUTINE p4z_meso( kt,jnt ) |
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| 56 | !!--------------------------------------------------------------------- |
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| 57 | !! *** ROUTINE p4z_meso *** |
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| 58 | !! |
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| 59 | !! ** Purpose : Compute the sources/sinks for mesozooplankton |
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| 60 | !! |
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| 61 | !! ** Method : - ??? |
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| 62 | !!--------------------------------------------------------------------- |
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| 63 | INTEGER, INTENT(in) :: kt, jnt ! ocean time step |
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| 64 | INTEGER :: ji, jj, jk |
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| 65 | REAL(wp) :: zcompadi, zcompaph, zcompapoc, zcompaz |
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| 66 | REAL(wp) :: zfact, zstep, zcompam, zdenom, zgraze2 |
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| 67 | REAL(wp) :: zgrarem2, zgrafer2, zgrapoc2, zprcaca, zmortz2 |
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| 68 | #if defined key_kriest |
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| 69 | REAL znumpoc |
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| 70 | #endif |
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| 71 | REAL(wp),DIMENSION(jpi,jpj,jpk) :: zrespz2,ztortz2,zgrazd,zgrazz,zgrazpof |
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| 72 | REAL(wp),DIMENSION(jpi,jpj,jpk) :: zgrazn,zgrazpoc,zgraznf,zgrazf |
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| 73 | REAL(wp),DIMENSION(jpi,jpj,jpk) :: zgrazfff,zgrazffe |
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| 74 | CHARACTER (len=25) :: charout |
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| 75 | !!--------------------------------------------------------------------- |
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| 76 | |
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| 77 | |
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| 78 | IF( ( kt * jnt ) == nittrc000 ) CALL p4z_meso_init ! Initialization (first time-step only) |
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| 79 | |
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| 80 | zstep = rfact2 / rjjss ! Time step duration for biology |
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| 81 | |
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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 | |
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| 86 | zcompam = MAX( ( trn(ji,jj,jk,jpmes) - 1.e-9 ), 0.e0 ) |
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| 87 | # if defined key_off_degrad |
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| 88 | zfact = zstep * tgfunc(ji,jj,jk) * zcompam * facvol(ji,jj,jk) |
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| 89 | # else |
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| 90 | zfact = zstep * tgfunc(ji,jj,jk) * zcompam |
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| 91 | # endif |
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| 92 | |
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| 93 | ! Respiration rates of both zooplankton |
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| 94 | ! ------------------------------------- |
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| 95 | zrespz2(ji,jj,jk) = resrat2 * zfact * ( 1. + 3. * nitrfac(ji,jj,jk) ) & |
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| 96 | & * trn(ji,jj,jk,jpmes) / ( xkmort + trn(ji,jj,jk,jpmes) ) |
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| 97 | |
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| 98 | ! Zooplankton mortality. A square function has been selected with |
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| 99 | ! no real reason except that it seems to be more stable and may |
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| 100 | ! mimic predation. |
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| 101 | ! --------------------------------------------------------------- |
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| 102 | ztortz2(ji,jj,jk) = mzrat2 * 1.e6 * zfact * trn(ji,jj,jk,jpmes) |
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| 103 | ! |
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| 104 | END DO |
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| 105 | END DO |
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| 106 | END DO |
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| 107 | |
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| 108 | |
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| 109 | DO jk = 1,jpkm1 |
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| 110 | DO jj = 1,jpj |
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| 111 | DO ji = 1,jpi |
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| 112 | zcompadi = MAX( ( trn(ji,jj,jk,jpdia) - 1.e-8 ), 0.e0 ) |
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| 113 | zcompaz = MAX( ( trn(ji,jj,jk,jpzoo) - 1.e-8 ), 0.e0 ) |
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| 114 | zcompaph = MAX( ( trn(ji,jj,jk,jpphy) - 2.e-7 ), 0.e0 ) |
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| 115 | zcompapoc = MAX( ( trn(ji,jj,jk,jppoc) - 1.e-8 ), 0.e0 ) |
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| 116 | |
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| 117 | ! Microzooplankton grazing |
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| 118 | ! ------------------------ |
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| 119 | zdenom = 1. / ( xkgraz2 + xprefc * trn(ji,jj,jk,jpdia) & |
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| 120 | & + xprefz * trn(ji,jj,jk,jpzoo) & |
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| 121 | & + xprefp * trn(ji,jj,jk,jpphy) & |
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| 122 | & + xprefpoc * trn(ji,jj,jk,jppoc) ) |
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| 123 | |
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| 124 | zgraze2 = grazrat2 * zstep * Tgfunc2(ji,jj,jk) * zdenom & |
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| 125 | # if defined key_off_degrad |
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| 126 | & * facvol(ji,jj,jk) & |
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| 127 | # endif |
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| 128 | & * trn(ji,jj,jk,jpmes) |
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| 129 | |
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| 130 | zgrazd(ji,jj,jk) = zgraze2 * xprefc * zcompadi |
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| 131 | zgrazz(ji,jj,jk) = zgraze2 * xprefz * zcompaz |
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| 132 | zgrazn(ji,jj,jk) = zgraze2 * xprefp * zcompaph |
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| 133 | zgrazpoc(ji,jj,jk) = zgraze2 * xprefpoc * zcompapoc |
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| 134 | |
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| 135 | zgraznf(ji,jj,jk) = zgrazn(ji,jj,jk) * trn(ji,jj,jk,jpnfe) & |
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| 136 | & / (trn(ji,jj,jk,jpphy) + rtrn) |
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| 137 | zgrazf(ji,jj,jk) = zgrazd(ji,jj,jk) * trn(ji,jj,jk,jpdfe) & |
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| 138 | & / (trn(ji,jj,jk,jpdia) + rtrn) |
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| 139 | zgrazpof(ji,jj,jk) = zgrazpoc(ji,jj,jk) * trn(ji,jj,jk,jpsfe) & |
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| 140 | & / (trn(ji,jj,jk,jppoc) + rtrn) |
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| 141 | END DO |
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| 142 | END DO |
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| 143 | END DO |
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| 144 | |
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| 145 | |
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| 146 | DO jk = 1,jpkm1 |
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| 147 | DO jj = 1,jpj |
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| 148 | DO ji = 1,jpi |
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| 149 | |
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| 150 | ! Mesozooplankton flux feeding on GOC |
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| 151 | ! ---------------------------------- |
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| 152 | # if ! defined key_kriest |
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| 153 | zgrazffe(ji,jj,jk) = grazflux * zstep * wsbio4(ji,jj,jk) & |
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| 154 | # if defined key_off_degrad |
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| 155 | & * facvol(ji,jj,jk) & |
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| 156 | # endif |
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| 157 | & * tgfunc2(ji,jj,jk) * trn(ji,jj,jk,jpgoc) * trn(ji,jj,jk,jpmes) |
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| 158 | |
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| 159 | zgrazfff(ji,jj,jk) = zgrazffe(ji,jj,jk) & |
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| 160 | & * trn(ji,jj,jk,jpbfe) / (trn(ji,jj,jk,jpgoc) + rtrn) |
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| 161 | # else |
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| 162 | ! KRIEST3 |
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| 163 | !! zgrazffe(ji,jj,jk) = 0.5 * 1.3e-2 / 5.5e-7 * 0.3 * zstep * wsbio3(ji,jj,jk) & |
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| 164 | !! & * tgfunc(ji,jj,jk) * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpmes) & |
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| 165 | # if defined key_off_degrad |
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| 166 | !! & * facvol(ji,jj,jk) & |
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| 167 | # endif |
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| 168 | !! & / (trn(ji,jj,jk,jppoc) * 1.e7 + 0.1) |
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| 169 | |
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| 170 | zgrazffe(ji,jj,jk) = grazflux * zstep * wsbio3(ji,jj,jk) & |
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| 171 | # if defined key_off_degrad |
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| 172 | & * facvol(ji,jj,jk) & |
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| 173 | # endif |
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| 174 | & * tgfunc2(ji,jj,jk) * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpmes) |
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| 175 | |
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| 176 | zgrazfff(ji,jj,jk) = zgrazffe(ji,jj,jk) & |
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| 177 | & * trn(ji,jj,jk,jpsfe) / (trn(ji,jj,jk,jppoc) + rtrn) |
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| 178 | # endif |
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| 179 | END DO |
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| 180 | END DO |
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| 181 | END DO |
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| 182 | |
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| 183 | |
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| 184 | DO jk = 1,jpkm1 |
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| 185 | DO jj = 1,jpj |
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| 186 | DO ji = 1,jpi |
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| 187 | |
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| 188 | ! Mesozooplankton efficiency |
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| 189 | ! -------------------------- |
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| 190 | zgrarem2 = ( zgrazd(ji,jj,jk) + zgrazz(ji,jj,jk) + zgrazn(ji,jj,jk) & |
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| 191 | & + zgrazpoc(ji,jj,jk) + zgrazffe(ji,jj,jk) ) & |
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| 192 | & * ( 1. - epsher2 - unass2 ) |
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| 193 | #if ! defined key_kriest |
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| 194 | zgrafer2 = (zgrazf(ji,jj,jk) + zgraznf(ji,jj,jk) + zgrazz(ji,jj,jk) & |
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| 195 | & * ferat3 + zgrazpof(ji,jj,jk) + zgrazfff (ji,jj,jk))*(1.-epsher2-unass2) & |
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| 196 | & + epsher2 * ( & |
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| 197 | & zgrazd(ji,jj,jk) * MAX((trn(ji,jj,jk,jpdfe) / (trn(ji,jj,jk,jpdia) + rtrn)-ferat3),0.) & |
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| 198 | & + zgrazn(ji,jj,jk) * MAX((trn(ji,jj,jk,jpnfe) / (trn(ji,jj,jk,jpphy) + rtrn)-ferat3),0.) & |
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| 199 | & + zgrazpoc(ji,jj,jk) * MAX((trn(ji,jj,jk,jpsfe) / (trn(ji,jj,jk,jppoc) + rtrn)-ferat3),0.) & |
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| 200 | & + zgrazffe(ji,jj,jk) * MAX((trn(ji,jj,jk,jpbfe) / (trn(ji,jj,jk,jpgoc) + rtrn)-ferat3),0.) ) |
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| 201 | #else |
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| 202 | zgrafer2 = (zgrazf(ji,jj,jk) + zgraznf(ji,jj,jk) + zgrazz(ji,jj,jk) & |
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| 203 | & * ferat3 + zgrazpof(ji,jj,jk) + zgrazfff(ji,jj,jk) )*(1.-epsher2-unass2) & |
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| 204 | & + epsher2 * ( & |
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| 205 | & zgrazd(ji,jj,jk) * MAX((trn(ji,jj,jk,jpdfe) / (trn(ji,jj,jk,jpdia) + rtrn)-ferat3),0.) & |
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| 206 | & + zgrazn(ji,jj,jk) * MAX((trn(ji,jj,jk,jpnfe) / (trn(ji,jj,jk,jpphy) + rtrn)-ferat3),0.) & |
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| 207 | & + zgrazpoc(ji,jj,jk) * MAX((trn(ji,jj,jk,jpsfe) / (trn(ji,jj,jk,jppoc) + rtrn)-ferat3),0.) & |
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| 208 | & + zgrazffe(ji,jj,jk) * MAX((trn(ji,jj,jk,jpsfe) / (trn(ji,jj,jk,jppoc) + rtrn)-ferat3),0.) ) |
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| 209 | |
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| 210 | #endif |
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| 211 | zgrapoc2 = (zgrazd(ji,jj,jk) + zgrazz(ji,jj,jk) + zgrazn(ji,jj,jk) & |
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| 212 | & + zgrazpoc(ji,jj,jk) + zgrazffe(ji,jj,jk)) * unass2 |
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| 213 | |
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| 214 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + zgrarem2 * sigma2 |
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| 215 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zgrarem2 * sigma2 |
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| 216 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zgrarem2 * (1.-sigma2) |
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| 217 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) - o2ut * zgrarem2 * sigma2 |
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| 218 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + zgrafer2 |
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| 219 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + zgrarem2 * sigma2 |
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| 220 | |
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| 221 | #if defined key_kriest |
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| 222 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zgrapoc2 |
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| 223 | tra(ji,jj,jk,jpnum) = tra(ji,jj,jk,jpnum) + zgrapoc2 * xkr_dmeso |
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| 224 | #else |
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| 225 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zgrapoc2 |
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| 226 | #endif |
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| 227 | END DO |
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| 228 | END DO |
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| 229 | END DO |
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| 230 | |
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| 231 | DO jk = 1, jpkm1 |
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| 232 | DO jj = 1, jpj |
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| 233 | DO ji = 1, jpi |
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| 234 | ! |
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| 235 | ! Update the arrays TRA which contain the biological sources and sinks |
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| 236 | ! -------------------------------------------------------------------- |
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| 237 | zmortz2 = ztortz2(ji,jj,jk) + zrespz2(ji,jj,jk) |
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| 238 | tra(ji,jj,jk,jpmes) = tra(ji,jj,jk,jpmes) - zmortz2 & |
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| 239 | & + epsher2 * ( zgrazd(ji,jj,jk) + zgrazz(ji,jj,jk) + zgrazn(ji,jj,jk) & |
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| 240 | & + zgrazpoc(ji,jj,jk) + zgrazffe(ji,jj,jk) ) |
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| 241 | tra(ji,jj,jk,jpdia) = tra(ji,jj,jk,jpdia) - zgrazd(ji,jj,jk) |
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| 242 | tra(ji,jj,jk,jpzoo) = tra(ji,jj,jk,jpzoo) - zgrazz(ji,jj,jk) |
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| 243 | tra(ji,jj,jk,jpphy) = tra(ji,jj,jk,jpphy) - zgrazn(ji,jj,jk) |
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| 244 | tra(ji,jj,jk,jpnch) = tra(ji,jj,jk,jpnch) - zgrazn(ji,jj,jk) * trn(ji,jj,jk,jpnch) & |
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| 245 | & / ( trn(ji,jj,jk,jpphy) + rtrn ) |
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| 246 | tra(ji,jj,jk,jpdch) = tra(ji,jj,jk,jpdch) - zgrazd(ji,jj,jk) * trn(ji,jj,jk,jpdch) & |
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| 247 | & / ( trn(ji,jj,jk,jpdia) + rtrn ) |
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| 248 | tra(ji,jj,jk,jpbsi) = tra(ji,jj,jk,jpbsi) - zgrazd(ji,jj,jk) * trn(ji,jj,jk,jpbsi) & |
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| 249 | & / ( trn(ji,jj,jk,jpdia) + rtrn ) |
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| 250 | tra(ji,jj,jk,jpdsi) = tra(ji,jj,jk,jpdsi) + zgrazd(ji,jj,jk) * trn(ji,jj,jk,jpbsi) & |
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| 251 | & / ( trn(ji,jj,jk,jpdia) + rtrn ) |
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| 252 | tra(ji,jj,jk,jpnfe) = tra(ji,jj,jk,jpnfe) - zgraznf(ji,jj,jk) |
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| 253 | tra(ji,jj,jk,jpdfe) = tra(ji,jj,jk,jpdfe) - zgrazf(ji,jj,jk) |
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| 254 | |
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| 255 | zprcaca = xfracal(ji,jj,jk) * part * unass2 * zgrazn(ji,jj,jk) |
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| 256 | |
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| 257 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) - zprcaca |
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| 258 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) - 2. * zprcaca |
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| 259 | tra(ji,jj,jk,jpcal) = tra(ji,jj,jk,jpcal) + zprcaca |
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| 260 | #if defined key_kriest |
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| 261 | znumpoc = trn(ji,jj,jk,jpnum) / ( trn(ji,jj,jk,jppoc) + rtrn ) |
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| 262 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zmortz2 & |
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| 263 | & - zgrazpoc(ji,jj,jk) - zgrazffe(ji,jj,jk) |
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| 264 | tra(ji,jj,jk,jpnum) = tra(ji,jj,jk,jpnum) - zgrazpoc(ji,jj,jk) * znumpoc & |
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| 265 | & + zmortz2 * xkr_dmeso & |
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| 266 | & - zgrazffe(ji,jj,jk) * znumpoc * wsbio4(ji,jj,jk) & |
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| 267 | & / ( wsbio3(ji,jj,jk) + rtrn ) |
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| 268 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + ferat3 * zmortz2 & |
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| 269 | & + unass2 * ( ferat3 * zgrazz(ji,jj,jk) + zgraznf(ji,jj,jk) & |
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| 270 | & + zgrazf(ji,jj,jk) + zgrazpof(ji,jj,jk) + zgrazfff(ji,jj,jk) ) & |
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| 271 | & - zgrazfff(ji,jj,jk) - zgrazpof(ji,jj,jk) |
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| 272 | #else |
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| 273 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zgrazpoc(ji,jj,jk) |
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| 274 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zmortz2 - zgrazffe(ji,jj,jk) |
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| 275 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zgrazpof(ji,jj,jk) |
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| 276 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + ferat3 * zmortz2 & |
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| 277 | & + unass2 * ( ferat3 * zgrazz(ji,jj,jk) + zgraznf(ji,jj,jk) & |
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| 278 | & + zgrazf(ji,jj,jk) + zgrazpof(ji,jj,jk) + zgrazfff(ji,jj,jk) ) & |
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| 279 | & - zgrazfff(ji,jj,jk) |
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| 280 | #endif |
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| 281 | |
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| 282 | END DO |
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| 283 | END DO |
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| 284 | END DO |
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| 285 | ! |
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| 286 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 287 | WRITE(charout, FMT="('meso')") |
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| 288 | CALL prt_ctl_trc_info(charout) |
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| 289 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 290 | ENDIF |
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| 291 | |
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| 292 | END SUBROUTINE p4z_meso |
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| 293 | |
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| 294 | SUBROUTINE p4z_meso_init |
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| 295 | |
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| 296 | !!---------------------------------------------------------------------- |
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| 297 | !! *** ROUTINE p4z_meso_init *** |
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| 298 | !! |
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| 299 | !! ** Purpose : Initialization of mesozooplankton parameters |
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| 300 | !! |
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| 301 | !! ** Method : Read the natmes namelist and check the parameters |
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| 302 | !! called at the first timestep (nittrc000) |
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| 303 | !! |
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| 304 | !! ** input : Namelist natmes |
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| 305 | !! |
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| 306 | !!---------------------------------------------------------------------- |
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| 307 | |
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| 308 | NAMELIST/natmes/ grazrat2,resrat2,mzrat2,xprefc, xprefp, & |
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| 309 | & xprefz, xprefpoc, xkgraz2, epsher2, sigma2, unass2, grazflux |
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| 310 | |
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| 311 | REWIND( numnat ) ! read numnat |
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| 312 | READ ( numnat, natmes ) |
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| 313 | |
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| 314 | |
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| 315 | IF(lwp) THEN ! control print |
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| 316 | WRITE(numout,*) ' ' |
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| 317 | WRITE(numout,*) ' Namelist parameters for mesozooplankton, natmes' |
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| 318 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' |
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| 319 | WRITE(numout,*) ' zoo preference for phyto xprefc =', xprefc |
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| 320 | WRITE(numout,*) ' zoo preference for POC xprefp =', xprefp |
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| 321 | WRITE(numout,*) ' zoo preference for zoo xprefz =', xprefz |
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| 322 | WRITE(numout,*) ' zoo preference for poc xprefpoc =', xprefpoc |
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| 323 | WRITE(numout,*) ' exsudation rate of mesozooplankton resrat2 =', resrat2 |
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| 324 | WRITE(numout,*) ' mesozooplankton mortality rate mzrat2 =', mzrat2 |
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| 325 | WRITE(numout,*) ' maximal mesozoo grazing rate grazrat2 =', grazrat2 |
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| 326 | WRITE(numout,*) ' mesozoo flux feeding rate grazflux =', grazflux |
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| 327 | WRITE(numout,*) ' non assimilated fraction of P by mesozoo unass2 =', unass2 |
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| 328 | WRITE(numout,*) ' Efficicency of Mesozoo growth epsher2 =', epsher2 |
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| 329 | WRITE(numout,*) ' Fraction of mesozoo excretion as DOM sigma2 =', sigma2 |
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| 330 | WRITE(numout,*) ' half sturation constant for grazing 2 xkgraz2 =', xkgraz2 |
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| 331 | ENDIF |
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| 332 | |
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| 333 | END SUBROUTINE p4z_meso_init |
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| 334 | |
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| 335 | |
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| 336 | #else |
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| 337 | !!====================================================================== |
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| 338 | !! Dummy module : No PISCES bio-model |
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| 339 | !!====================================================================== |
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| 340 | CONTAINS |
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| 341 | SUBROUTINE p4z_meso ! Empty routine |
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| 342 | END SUBROUTINE p4z_meso |
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| 343 | #endif |
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| 344 | |
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| 345 | !!====================================================================== |
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| 346 | END MODULE p4zmeso |
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