[3443] | 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 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Quota model for iron |
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| 9 | !!---------------------------------------------------------------------- |
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[9169] | 10 | !! p4z_meso : Compute the sources/sinks for mesozooplankton |
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| 11 | !! p4z_meso_init : Initialization of the parameters for mesozooplankton |
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[3443] | 12 | !!---------------------------------------------------------------------- |
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[9169] | 13 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 14 | USE trc ! passive tracers common variables |
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| 15 | USE sms_pisces ! PISCES Source Minus Sink variables |
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| 16 | USE p4zprod ! production |
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| 17 | USE prtctl_trc ! print control for debugging |
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| 18 | USE iom ! I/O manager |
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[3443] | 19 | |
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| 20 | IMPLICIT NONE |
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| 21 | PRIVATE |
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| 22 | |
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| 23 | PUBLIC p4z_meso ! called in p4zbio.F90 |
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| 24 | PUBLIC p4z_meso_init ! called in trcsms_pisces.F90 |
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[12524] | 25 | PUBLIC p4z_meso_alloc |
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[3443] | 26 | |
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[4147] | 27 | REAL(wp), PUBLIC :: part2 !: part of calcite not dissolved in mesozoo guts |
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[10362] | 28 | REAL(wp), PUBLIC :: xpref2d !: mesozoo preference for diatoms |
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| 29 | REAL(wp), PUBLIC :: xpref2n !: mesozoo preference for nanophyto |
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| 30 | REAL(wp), PUBLIC :: xpref2z !: mesozoo preference for microzooplankton |
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| 31 | REAL(wp), PUBLIC :: xpref2c !: mesozoo preference for POC |
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[4147] | 32 | REAL(wp), PUBLIC :: xthresh2zoo !: zoo feeding threshold for mesozooplankton |
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| 33 | REAL(wp), PUBLIC :: xthresh2dia !: diatoms feeding threshold for mesozooplankton |
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| 34 | REAL(wp), PUBLIC :: xthresh2phy !: nanophyto feeding threshold for mesozooplankton |
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| 35 | REAL(wp), PUBLIC :: xthresh2poc !: poc feeding threshold for mesozooplankton |
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| 36 | REAL(wp), PUBLIC :: xthresh2 !: feeding threshold for mesozooplankton |
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| 37 | REAL(wp), PUBLIC :: resrat2 !: exsudation rate of mesozooplankton |
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| 38 | REAL(wp), PUBLIC :: mzrat2 !: microzooplankton mortality rate |
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| 39 | REAL(wp), PUBLIC :: grazrat2 !: maximal mesozoo grazing rate |
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| 40 | REAL(wp), PUBLIC :: xkgraz2 !: non assimilated fraction of P by mesozoo |
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| 41 | REAL(wp), PUBLIC :: unass2 !: Efficicency of mesozoo growth |
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| 42 | REAL(wp), PUBLIC :: sigma2 !: Fraction of mesozoo excretion as DOM |
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[10362] | 43 | REAL(wp), PUBLIC :: epsher2 !: growth efficiency |
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| 44 | REAL(wp), PUBLIC :: epsher2min !: minimum growth efficiency at high food for grazing 2 |
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[4147] | 45 | REAL(wp), PUBLIC :: grazflux !: mesozoo flux feeding rate |
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[12524] | 46 | REAL(wp), PUBLIC :: xfracmig !: Fractional biomass of meso that performs DVM |
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| 47 | LOGICAL , PUBLIC :: ln_dvm_meso !: Boolean to activate DVM of mesozooplankton |
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| 48 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: depmig |
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| 49 | INTEGER , ALLOCATABLE, SAVE, DIMENSION(:,:) :: kmig |
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[3443] | 50 | |
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| 51 | !!---------------------------------------------------------------------- |
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[10067] | 52 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[10069] | 53 | !! $Id$ |
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[10068] | 54 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3443] | 55 | !!---------------------------------------------------------------------- |
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| 56 | CONTAINS |
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| 57 | |
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[5385] | 58 | SUBROUTINE p4z_meso( kt, knt ) |
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[3443] | 59 | !!--------------------------------------------------------------------- |
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| 60 | !! *** ROUTINE p4z_meso *** |
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| 61 | !! |
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| 62 | !! ** Purpose : Compute the sources/sinks for mesozooplankton |
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| 63 | !! |
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| 64 | !! ** Method : - ??? |
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| 65 | !!--------------------------------------------------------------------- |
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[9169] | 66 | INTEGER, INTENT(in) :: kt, knt ! ocean time step and ??? |
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| 67 | ! |
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[12524] | 68 | INTEGER :: ji, jj, jk, jkt |
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[3443] | 69 | REAL(wp) :: zcompadi, zcompaph, zcompapoc, zcompaz, zcompam |
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[4529] | 70 | REAL(wp) :: zgraze2 , zdenom, zdenom2 |
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[10362] | 71 | REAL(wp) :: zfact , zfood, zfoodlim, zproport, zbeta |
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[7646] | 72 | REAL(wp) :: zmortzgoc, zfrac, zfracfe, zratio, zratio2, zfracal, zgrazcal |
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[12349] | 73 | REAL(wp) :: zepsherf, zepshert, zepsherq, zepsherv, zgrarsig, zgraztotc, zgraztotn, zgraztotf |
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[12524] | 74 | REAL(wp) :: zmigreltime, zprcaca, zmortz, zgrasrat, zgrasratn |
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[10362] | 75 | REAL(wp) :: zrespz, ztortz, zgrazd, zgrazz, zgrazpof |
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[3443] | 76 | REAL(wp) :: zgrazn, zgrazpoc, zgraznf, zgrazf |
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[4148] | 77 | REAL(wp) :: zgrazfffp, zgrazfffg, zgrazffep, zgrazffeg |
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[12524] | 78 | REAL(wp) :: zrum, zcodel, zargu, zval |
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[4148] | 79 | CHARACTER (len=25) :: charout |
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[10362] | 80 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zgrazing, zfezoo2 |
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[12524] | 81 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zgrarem, zgraref, zgrapoc, zgrapof |
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| 82 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zgramigrem, zgramigref, zgramigpoc, zgramigpof, zstrn |
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[10362] | 83 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: zw3d, zz2ligprod |
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[3443] | 84 | !!--------------------------------------------------------------------- |
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| 85 | ! |
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[9124] | 86 | IF( ln_timing ) CALL timing_start('p4z_meso') |
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[3443] | 87 | ! |
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[7753] | 88 | zgrazing(:,:,:) = 0._wp |
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[10362] | 89 | zfezoo2 (:,:,:) = 0._wp |
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| 90 | ! |
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| 91 | IF (ln_ligand) THEN |
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| 92 | ALLOCATE( zz2ligprod(jpi,jpj,jpk) ) |
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| 93 | zz2ligprod(:,:,:) = 0._wp |
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| 94 | ENDIF |
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| 95 | ! |
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[12524] | 96 | ! Diurnal vertical migration of mesozooplankton |
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| 97 | ! --------------------------------------------- |
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| 98 | IF (ln_dvm_meso) CALL p4z_meso_depmig |
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| 99 | ! |
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[3443] | 100 | DO jk = 1, jpkm1 |
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| 101 | DO jj = 1, jpj |
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| 102 | DO ji = 1, jpi |
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[5385] | 103 | zcompam = MAX( ( trb(ji,jj,jk,jpmes) - 1.e-9 ), 0.e0 ) |
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[7646] | 104 | zfact = xstep * tgfunc2(ji,jj,jk) * zcompam |
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[3443] | 105 | |
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| 106 | ! Respiration rates of both zooplankton |
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| 107 | ! ------------------------------------- |
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[10362] | 108 | zrespz = resrat2 * zfact * ( trb(ji,jj,jk,jpmes) / ( xkmort + trb(ji,jj,jk,jpmes) ) & |
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| 109 | & + 3. * nitrfac(ji,jj,jk) ) |
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[3443] | 110 | |
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| 111 | ! Zooplankton mortality. A square function has been selected with |
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| 112 | ! no real reason except that it seems to be more stable and may mimic predation |
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| 113 | ! --------------------------------------------------------------- |
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[10362] | 114 | ztortz = mzrat2 * 1.e6 * zfact * trb(ji,jj,jk,jpmes) * (1. - nitrfac(ji,jj,jk) ) |
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[3443] | 115 | ! |
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[5385] | 116 | zcompadi = MAX( ( trb(ji,jj,jk,jpdia) - xthresh2dia ), 0.e0 ) |
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| 117 | zcompaz = MAX( ( trb(ji,jj,jk,jpzoo) - xthresh2zoo ), 0.e0 ) |
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[10362] | 118 | zcompapoc = MAX( ( trb(ji,jj,jk,jppoc) - xthresh2poc ), 0.e0 ) |
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[4529] | 119 | ! Size effect of nanophytoplankton on grazing : the smaller it is, the less prone |
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| 120 | ! it is to predation by mesozooplankton |
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| 121 | ! ------------------------------------------------------------------------------- |
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[5385] | 122 | zcompaph = MAX( ( trb(ji,jj,jk,jpphy) - xthresh2phy ), 0.e0 ) & |
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[4529] | 123 | & * MIN(1., MAX( 0., ( quotan(ji,jj,jk) - 0.2) / 0.3 ) ) |
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[3443] | 124 | |
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[12524] | 125 | ! Mesozooplankton grazing |
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| 126 | ! ------------------------ |
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[10362] | 127 | zfood = xpref2d * zcompadi + xpref2z * zcompaz + xpref2n * zcompaph + xpref2c * zcompapoc |
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[4148] | 128 | zfoodlim = MAX( 0., zfood - MIN( 0.5 * zfood, xthresh2 ) ) |
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[3443] | 129 | zdenom = zfoodlim / ( xkgraz2 + zfoodlim ) |
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| 130 | zdenom2 = zdenom / ( zfood + rtrn ) |
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[10222] | 131 | zgraze2 = grazrat2 * xstep * tgfunc2(ji,jj,jk) * trb(ji,jj,jk,jpmes) * (1. - nitrfac(ji,jj,jk)) |
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[3443] | 132 | |
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[10362] | 133 | zgrazd = zgraze2 * xpref2d * zcompadi * zdenom2 |
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| 134 | zgrazz = zgraze2 * xpref2z * zcompaz * zdenom2 |
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| 135 | zgrazn = zgraze2 * xpref2n * zcompaph * zdenom2 |
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| 136 | zgrazpoc = zgraze2 * xpref2c * zcompapoc * zdenom2 |
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[3443] | 137 | |
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[5385] | 138 | zgraznf = zgrazn * trb(ji,jj,jk,jpnfe) / ( trb(ji,jj,jk,jpphy) + rtrn) |
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| 139 | zgrazf = zgrazd * trb(ji,jj,jk,jpdfe) / ( trb(ji,jj,jk,jpdia) + rtrn) |
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| 140 | zgrazpof = zgrazpoc * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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[3443] | 141 | |
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| 142 | ! Mesozooplankton flux feeding on GOC |
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| 143 | ! ---------------------------------- |
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[7646] | 144 | zgrazffeg = grazflux * xstep * wsbio4(ji,jj,jk) & |
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[8533] | 145 | & * tgfunc2(ji,jj,jk) * trb(ji,jj,jk,jpgoc) * trb(ji,jj,jk,jpmes) & |
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| 146 | & * (1. - nitrfac(ji,jj,jk)) |
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[5385] | 147 | zgrazfffg = zgrazffeg * trb(ji,jj,jk,jpbfe) / (trb(ji,jj,jk,jpgoc) + rtrn) |
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[7646] | 148 | zgrazffep = grazflux * xstep * wsbio3(ji,jj,jk) & |
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[8533] | 149 | & * tgfunc2(ji,jj,jk) * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpmes) & |
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| 150 | & * (1. - nitrfac(ji,jj,jk)) |
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[5385] | 151 | zgrazfffp = zgrazffep * trb(ji,jj,jk,jpsfe) / (trb(ji,jj,jk,jppoc) + rtrn) |
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[10362] | 152 | ! |
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| 153 | zgraztotc = zgrazd + zgrazz + zgrazn + zgrazpoc + zgrazffep + zgrazffeg |
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| 154 | ! Compute the proportion of filter feeders |
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| 155 | zproport = (zgrazffep + zgrazffeg)/(rtrn + zgraztotc) |
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| 156 | ! Compute fractionation of aggregates. It is assumed that |
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| 157 | ! diatoms based aggregates are more prone to fractionation |
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| 158 | ! since they are more porous (marine snow instead of fecal pellets) |
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| 159 | zratio = trb(ji,jj,jk,jpgsi) / ( trb(ji,jj,jk,jpgoc) + rtrn ) |
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| 160 | zratio2 = zratio * zratio |
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| 161 | zfrac = zproport * grazflux * xstep * wsbio4(ji,jj,jk) & |
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[5385] | 162 | & * trb(ji,jj,jk,jpgoc) * trb(ji,jj,jk,jpmes) & |
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[4800] | 163 | & * ( 0.2 + 3.8 * zratio2 / ( 1.**2 + zratio2 ) ) |
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[10362] | 164 | zfracfe = zfrac * trb(ji,jj,jk,jpbfe) / (trb(ji,jj,jk,jpgoc) + rtrn) |
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[4148] | 165 | |
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[10362] | 166 | zgrazffep = zproport * zgrazffep |
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| 167 | zgrazffeg = zproport * zgrazffeg |
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| 168 | zgrazfffp = zproport * zgrazfffp |
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| 169 | zgrazfffg = zproport * zgrazfffg |
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| 170 | zgraztotc = zgrazd + zgrazz + zgrazn + zgrazpoc + zgrazffep + zgrazffeg |
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| 171 | zgraztotn = zgrazd * quotad(ji,jj,jk) + zgrazz + zgrazn * quotan(ji,jj,jk) & |
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| 172 | & + zgrazpoc + zgrazffep + zgrazffeg |
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| 173 | zgraztotf = zgrazf + zgraznf + zgrazz * ferat3 + zgrazpof + zgrazfffp + zgrazfffg |
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[4148] | 174 | |
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[10362] | 175 | ! Total grazing ( grazing by microzoo is already computed in p4zmicro ) |
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| 176 | zgrazing(ji,jj,jk) = zgraztotc |
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[3446] | 177 | |
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[10362] | 178 | ! Mesozooplankton efficiency |
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| 179 | ! -------------------------- |
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| 180 | zgrasrat = ( zgraztotf + rtrn )/ ( zgraztotc + rtrn ) |
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| 181 | zgrasratn = ( zgraztotn + rtrn )/ ( zgraztotc + rtrn ) |
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[4529] | 182 | zepshert = MIN( 1., zgrasratn, zgrasrat / ferat3) |
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[10362] | 183 | zbeta = MAX(0., (epsher2 - epsher2min) ) |
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| 184 | zepsherf = epsher2min + zbeta / ( 1.0 + 0.04E6 * 12. * zfood * zbeta ) |
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[12349] | 185 | zepsherq = 0.5 + (1.0 - 0.5) * zepshert * ( 1.0 + 1.0 ) / ( zepshert + 1.0 ) |
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[12360] | 186 | zepsherv = zepsherf * zepshert * zepsherq |
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[12524] | 187 | ! |
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| 188 | ! Impact of grazing on the prognostic variables |
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| 189 | ! --------------------------------------------- |
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[10362] | 190 | zmortz = ztortz + zrespz |
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| 191 | zmortzgoc = unass2 / ( 1. - epsher2 ) * ztortz + zrespz |
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[12524] | 192 | tra(ji,jj,jk,jpmes) = tra(ji,jj,jk,jpmes) - zmortz + zepsherv * zgraztotc |
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[3443] | 193 | tra(ji,jj,jk,jpdia) = tra(ji,jj,jk,jpdia) - zgrazd |
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| 194 | tra(ji,jj,jk,jpzoo) = tra(ji,jj,jk,jpzoo) - zgrazz |
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| 195 | tra(ji,jj,jk,jpphy) = tra(ji,jj,jk,jpphy) - zgrazn |
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[5385] | 196 | tra(ji,jj,jk,jpnch) = tra(ji,jj,jk,jpnch) - zgrazn * trb(ji,jj,jk,jpnch) / ( trb(ji,jj,jk,jpphy) + rtrn ) |
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| 197 | tra(ji,jj,jk,jpdch) = tra(ji,jj,jk,jpdch) - zgrazd * trb(ji,jj,jk,jpdch) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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| 198 | tra(ji,jj,jk,jpdsi) = tra(ji,jj,jk,jpdsi) - zgrazd * trb(ji,jj,jk,jpdsi) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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| 199 | tra(ji,jj,jk,jpgsi) = tra(ji,jj,jk,jpgsi) + zgrazd * trb(ji,jj,jk,jpdsi) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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[3443] | 200 | tra(ji,jj,jk,jpnfe) = tra(ji,jj,jk,jpnfe) - zgraznf |
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| 201 | tra(ji,jj,jk,jpdfe) = tra(ji,jj,jk,jpdfe) - zgrazf |
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[10362] | 202 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zgrazpoc - zgrazffep + zfrac |
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| 203 | prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + zfrac |
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| 204 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zgrazpoc - zgrazffep |
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[12524] | 205 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) - zgrazffeg - zfrac |
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[10362] | 206 | consgoc(ji,jj,jk) = consgoc(ji,jj,jk) - zgrazffeg - zfrac |
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| 207 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zgrazpof - zgrazfffp + zfracfe |
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[12524] | 208 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) - zgrazfffg - zfracfe |
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| 209 | ! Calcite remineralization due to zooplankton activity |
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[10362] | 210 | zfracal = trb(ji,jj,jk,jpcal) / (trb(ji,jj,jk,jppoc) + trb(ji,jj,jk,jpgoc) + rtrn ) |
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| 211 | zgrazcal = (zgrazffeg + zgrazpoc) * (1. - part2) * zfracal |
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[12524] | 212 | ! calcite production by zooplankton activity |
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[10362] | 213 | zprcaca = xfracal(ji,jj,jk) * zgrazn |
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| 214 | prodcal(ji,jj,jk) = prodcal(ji,jj,jk) + zprcaca ! prodcal=prodcal(nanophy)+prodcal(microzoo)+prodcal(mesozoo) |
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| 215 | ! |
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| 216 | zprcaca = part2 * zprcaca |
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| 217 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + zgrazcal - zprcaca |
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| 218 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) - 2. * ( zgrazcal + zprcaca ) |
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| 219 | tra(ji,jj,jk,jpcal) = tra(ji,jj,jk,jpcal) - zgrazcal + zprcaca |
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[12524] | 220 | |
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| 221 | ! Correct the fluxes for the effect of DVM |
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| 222 | ! A fixed fraction of mesozooplankton is assumed to migrate |
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| 223 | ! --------------------------------------------------------- |
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| 224 | zgrarem(ji,jj,jk) = zgraztotc * ( 1. - zepsherv - unass2 ) & |
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| 225 | & + ( 1. - epsher2 - unass2 ) / ( 1. - epsher2 ) * ztortz |
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| 226 | zgraref(ji,jj,jk) = zgraztotc * MAX( 0. , ( 1. - unass2 ) * zgrasrat - ferat3 * zepsherv ) & |
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| 227 | & + ferat3 * ( ( 1. - epsher2 - unass2 ) /( 1. - epsher2 ) * ztortz ) |
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| 228 | zgrapoc(ji,jj,jk) = zgraztotc * unass2 + zmortzgoc |
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| 229 | zgrapof(ji,jj,jk) = zgraztotf * unass2 + ferat3 * zmortzgoc |
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| 230 | END DO |
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| 231 | END DO |
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| 232 | END DO |
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| 233 | |
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| 234 | IF (ln_dvm_meso) THEN |
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| 235 | ALLOCATE( zgramigrem(jpi,jpj), zgramigref(jpi,jpj), zgramigpoc(jpi,jpj), zgramigpof(jpi,jpj) ) |
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| 236 | ALLOCATE( zstrn(jpi,jpj) ) |
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| 237 | zgramigrem(:,:) = 0.0 ; zgramigref(:,:) = 0.0 |
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| 238 | zgramigpoc(:,:) = 0.0 ; zgramigpof(:,:) = 0.0 |
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| 239 | |
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| 240 | ! compute the day length depending on latitude and the day |
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| 241 | zrum = REAL( nday_year - 80, wp ) / REAL( nyear_len(1), wp ) |
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| 242 | zcodel = ASIN( SIN( zrum * rpi * 2._wp ) * SIN( rad * 23.5_wp ) ) |
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| 243 | |
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| 244 | ! day length in hours |
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| 245 | zstrn(:,:) = 0. |
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| 246 | DO jj = 1, jpj |
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| 247 | DO ji = 1, jpi |
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| 248 | zargu = TAN( zcodel ) * TAN( gphit(ji,jj) * rad ) |
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| 249 | zargu = MAX( -1., MIN( 1., zargu ) ) |
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| 250 | zstrn(ji,jj) = MAX( 0.0, 24. - 2. * ACOS( zargu ) / rad / 15. ) |
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| 251 | zstrn(ji,jj) = MIN(0.75, MAX( 0.25, zstrn(ji,jj) / 24.) ) |
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[3443] | 252 | END DO |
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| 253 | END DO |
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[12524] | 254 | |
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| 255 | |
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| 256 | DO jk = 1, jpk |
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| 257 | DO jj = 1, jpj |
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| 258 | DO ji = 1, jpi |
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| 259 | |
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| 260 | ! Compute the amount of materials that will go into vertical migration |
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| 261 | zmigreltime = (1. - zstrn(ji,jj)) |
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| 262 | IF ( gdept_n(ji,jj,jk) <= heup(ji,jj) ) THEN |
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| 263 | zgramigrem(ji,jj) = zgramigrem(ji,jj) + xfracmig * zgrarem(ji,jj,jk) * (1. - zmigreltime ) & |
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| 264 | & * e3t_n(ji,jj,jk) * tmask(ji,jj,jk) |
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| 265 | zgramigref(ji,jj) = zgramigref(ji,jj) + xfracmig * zgraref(ji,jj,jk) * (1. - zmigreltime ) & |
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| 266 | & * e3t_n(ji,jj,jk) * tmask(ji,jj,jk) |
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| 267 | zgramigpoc(ji,jj) = zgramigpoc(ji,jj) + xfracmig * zgrapoc(ji,jj,jk) * (1. - zmigreltime ) & |
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| 268 | & * e3t_n(ji,jj,jk) * tmask(ji,jj,jk) |
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| 269 | zgramigpof(ji,jj) = zgramigpof(ji,jj) + xfracmig * zgrapof(ji,jj,jk) * (1. - zmigreltime ) & |
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| 270 | & * e3t_n(ji,jj,jk) * tmask(ji,jj,jk) |
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| 271 | |
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| 272 | zgrarem(ji,jj,jk) = zgrarem(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
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| 273 | zgraref(ji,jj,jk) = zgraref(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
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| 274 | zgrapoc(ji,jj,jk) = zgrapoc(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
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| 275 | zgrapof(ji,jj,jk) = zgrapof(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
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| 276 | ENDIF |
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| 277 | END DO |
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| 278 | END DO |
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| 279 | END DO |
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| 280 | |
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| 281 | DO jj = 1, jpj |
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| 282 | DO ji = 1, jpi |
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| 283 | IF (tmask(ji,jj,1) == 1.) THEN |
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| 284 | jkt = kmig(ji,jj) |
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| 285 | zgrarem(ji,jj,jkt) = zgrarem(ji,jj,jkt) + zgramigrem(ji,jj) / e3t_n(ji,jj,jkt) |
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| 286 | zgraref(ji,jj,jkt) = zgraref(ji,jj,jkt) + zgramigref(ji,jj) / e3t_n(ji,jj,jkt) |
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| 287 | zgrapoc(ji,jj,jkt) = zgrapoc(ji,jj,jkt) + zgramigpoc(ji,jj) / e3t_n(ji,jj,jkt) |
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| 288 | zgrapof(ji,jj,jkt) = zgrapof(ji,jj,jkt) + zgramigpof(ji,jj) / e3t_n(ji,jj,jkt) |
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| 289 | ENDIF |
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| 290 | END DO |
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| 291 | END DO |
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| 292 | ! |
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| 293 | ! Deallocate temporary variables |
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| 294 | ! ------------------------------ |
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| 295 | DEALLOCATE( zgramigrem, zgramigref, zgramigpoc, zgramigpof ) |
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| 296 | DEALLOCATE( zstrn ) |
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| 297 | |
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| 298 | ENDIF |
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| 299 | |
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| 300 | DO jk = 1, jpk |
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| 301 | DO jj = 1, jpj |
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| 302 | DO ji = 1, jpi |
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| 303 | ! Update the arrays TRA which contain the biological sources and sinks |
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| 304 | zgrarsig = zgrarem(ji,jj,jk) * sigma2 |
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| 305 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + zgrarsig |
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| 306 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zgrarsig |
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| 307 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zgrarem(ji,jj,jk) - zgrarsig |
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| 308 | ! |
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| 309 | IF( ln_ligand ) THEN |
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| 310 | tra(ji,jj,jk,jplgw) = tra(ji,jj,jk,jplgw) + (zgrarem(ji,jj,jk) - zgrarsig) * ldocz |
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| 311 | zz2ligprod(ji,jj,jk) = (zgrarem(ji,jj,jk) - zgrarsig) * ldocz |
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| 312 | ENDIF |
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| 313 | ! |
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| 314 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) - o2ut * zgrarsig |
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| 315 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + zgraref(ji,jj,jk) |
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| 316 | zfezoo2(ji,jj,jk) = zgraref(ji,jj,jk) |
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| 317 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + zgrarsig |
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| 318 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zgrarsig |
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| 319 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zgrapoc(ji,jj,jk) |
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| 320 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zgrapoc(ji,jj,jk) |
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| 321 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zgrapof(ji,jj,jk) |
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| 322 | END DO |
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| 323 | END DO |
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[3443] | 324 | END DO |
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| 325 | ! |
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[5385] | 326 | IF( lk_iomput .AND. knt == nrdttrc ) THEN |
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[9125] | 327 | ALLOCATE( zw3d(jpi,jpj,jpk) ) |
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[4996] | 328 | IF( iom_use( "GRAZ2" ) ) THEN |
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[7753] | 329 | zw3d(:,:,:) = zgrazing(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ! Total grazing of phyto by zooplankton |
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[4996] | 330 | CALL iom_put( "GRAZ2", zw3d ) |
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| 331 | ENDIF |
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| 332 | IF( iom_use( "PCAL" ) ) THEN |
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[7753] | 333 | zw3d(:,:,:) = prodcal(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ! Calcite production |
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[4996] | 334 | CALL iom_put( "PCAL", zw3d ) |
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| 335 | ENDIF |
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[10362] | 336 | IF( iom_use( "FEZOO2" ) ) THEN |
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| 337 | zw3d(:,:,:) = zfezoo2(:,:,:) * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) ! |
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| 338 | CALL iom_put( "FEZOO2", zw3d ) |
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| 339 | ENDIF |
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| 340 | IF( iom_use( "LPRODZ2" ) .AND. ln_ligand ) THEN |
---|
| 341 | zw3d(:,:,:) = zz2ligprod(:,:,:) * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) |
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| 342 | CALL iom_put( "LPRODZ2" , zw3d ) |
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| 343 | ENDIF |
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[9125] | 344 | DEALLOCATE( zw3d ) |
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[3443] | 345 | ENDIF |
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| 346 | ! |
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[10367] | 347 | IF (ln_ligand) DEALLOCATE( zz2ligprod ) |
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| 348 | ! |
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[3443] | 349 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 350 | WRITE(charout, FMT="('meso')") |
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| 351 | CALL prt_ctl_trc_info(charout) |
---|
| 352 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
| 353 | ENDIF |
---|
| 354 | ! |
---|
[9124] | 355 | IF( ln_timing ) CALL timing_stop('p4z_meso') |
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[3443] | 356 | ! |
---|
| 357 | END SUBROUTINE p4z_meso |
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| 358 | |
---|
[9124] | 359 | |
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[3443] | 360 | SUBROUTINE p4z_meso_init |
---|
| 361 | !!---------------------------------------------------------------------- |
---|
| 362 | !! *** ROUTINE p4z_meso_init *** |
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| 363 | !! |
---|
| 364 | !! ** Purpose : Initialization of mesozooplankton parameters |
---|
| 365 | !! |
---|
| 366 | !! ** Method : Read the nampismes namelist and check the parameters |
---|
| 367 | !! called at the first timestep (nittrc000) |
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| 368 | !! |
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| 369 | !! ** input : Namelist nampismes |
---|
| 370 | !!---------------------------------------------------------------------- |
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[9124] | 371 | INTEGER :: ios ! Local integer |
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| 372 | ! |
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[10362] | 373 | NAMELIST/namp4zmes/ part2, grazrat2, resrat2, mzrat2, xpref2n, xpref2d, xpref2z, & |
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| 374 | & xpref2c, xthresh2dia, xthresh2phy, xthresh2zoo, xthresh2poc, & |
---|
[12524] | 375 | & xthresh2, xkgraz2, epsher2, epsher2min, sigma2, unass2, grazflux, ln_dvm_meso, & |
---|
| 376 | & xfracmig |
---|
[9124] | 377 | !!---------------------------------------------------------------------- |
---|
| 378 | ! |
---|
[9169] | 379 | IF(lwp) THEN |
---|
| 380 | WRITE(numout,*) |
---|
| 381 | WRITE(numout,*) 'p4z_meso_init : Initialization of mesozooplankton parameters' |
---|
| 382 | WRITE(numout,*) '~~~~~~~~~~~~~' |
---|
| 383 | ENDIF |
---|
| 384 | ! |
---|
[4147] | 385 | REWIND( numnatp_ref ) ! Namelist nampismes in reference namelist : Pisces mesozooplankton |
---|
[7646] | 386 | READ ( numnatp_ref, namp4zmes, IOSTAT = ios, ERR = 901) |
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[11536] | 387 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namp4zmes in reference namelist' ) |
---|
[4147] | 388 | REWIND( numnatp_cfg ) ! Namelist nampismes in configuration namelist : Pisces mesozooplankton |
---|
[7646] | 389 | READ ( numnatp_cfg, namp4zmes, IOSTAT = ios, ERR = 902 ) |
---|
[11536] | 390 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namp4zmes in configuration namelist' ) |
---|
[9169] | 391 | IF(lwm) WRITE( numonp, namp4zmes ) |
---|
[9124] | 392 | ! |
---|
[3443] | 393 | IF(lwp) THEN ! control print |
---|
[9169] | 394 | WRITE(numout,*) ' Namelist : namp4zmes' |
---|
| 395 | WRITE(numout,*) ' part of calcite not dissolved in mesozoo guts part2 =', part2 |
---|
[10362] | 396 | WRITE(numout,*) ' mesozoo preference for phyto xpref2n =', xpref2n |
---|
| 397 | WRITE(numout,*) ' mesozoo preference for diatoms xpref2d =', xpref2d |
---|
| 398 | WRITE(numout,*) ' mesozoo preference for zoo xpref2z =', xpref2z |
---|
| 399 | WRITE(numout,*) ' mesozoo preference for poc xpref2c =', xpref2c |
---|
[9169] | 400 | WRITE(numout,*) ' microzoo feeding threshold for mesozoo xthresh2zoo =', xthresh2zoo |
---|
| 401 | WRITE(numout,*) ' diatoms feeding threshold for mesozoo xthresh2dia =', xthresh2dia |
---|
| 402 | WRITE(numout,*) ' nanophyto feeding threshold for mesozoo xthresh2phy =', xthresh2phy |
---|
| 403 | WRITE(numout,*) ' poc feeding threshold for mesozoo xthresh2poc =', xthresh2poc |
---|
| 404 | WRITE(numout,*) ' feeding threshold for mesozooplankton xthresh2 =', xthresh2 |
---|
| 405 | WRITE(numout,*) ' exsudation rate of mesozooplankton resrat2 =', resrat2 |
---|
| 406 | WRITE(numout,*) ' mesozooplankton mortality rate mzrat2 =', mzrat2 |
---|
| 407 | WRITE(numout,*) ' maximal mesozoo grazing rate grazrat2 =', grazrat2 |
---|
| 408 | WRITE(numout,*) ' mesozoo flux feeding rate grazflux =', grazflux |
---|
| 409 | WRITE(numout,*) ' non assimilated fraction of P by mesozoo unass2 =', unass2 |
---|
[10362] | 410 | WRITE(numout,*) ' Efficiency of Mesozoo growth epsher2 =', epsher2 |
---|
[12524] | 411 | WRITE(numout,*) ' Minimum Efficiency of Mesozoo growth epsher2min =', epsher2min |
---|
[9169] | 412 | WRITE(numout,*) ' Fraction of mesozoo excretion as DOM sigma2 =', sigma2 |
---|
| 413 | WRITE(numout,*) ' half sturation constant for grazing 2 xkgraz2 =', xkgraz2 |
---|
[12524] | 414 | WRITE(numout,*) ' Diurnal vertical migration of mesozoo. ln_dvm_meso =', ln_dvm_meso |
---|
| 415 | WRITE(numout,*) ' Fractional biomass of meso that performs DVM xfracmig =', xfracmig |
---|
[3443] | 416 | ENDIF |
---|
[9124] | 417 | ! |
---|
[3443] | 418 | END SUBROUTINE p4z_meso_init |
---|
| 419 | |
---|
[12524] | 420 | SUBROUTINE p4z_meso_depmig |
---|
| 421 | !!---------------------------------------------------------------------- |
---|
| 422 | !! *** ROUTINE p4z_meso_depmig *** |
---|
| 423 | !! |
---|
| 424 | !! ** Purpose : Computation the migration depth of mesozooplankton |
---|
| 425 | !! |
---|
| 426 | !! ** Method : Computes the DVM depth of mesozooplankton from oxygen |
---|
| 427 | !! temperature and chlorophylle following the parameterization |
---|
| 428 | !! proposed by Bianchi et al. (2013) |
---|
| 429 | !! |
---|
| 430 | !! ** input : |
---|
| 431 | !!---------------------------------------------------------------------- |
---|
| 432 | INTEGER :: ji, jj, jk |
---|
| 433 | ! |
---|
| 434 | REAL(wp) :: totchl |
---|
| 435 | REAL(wp), DIMENSION(jpi,jpj) :: oxymoy, tempmoy, zdepmoy |
---|
| 436 | |
---|
| 437 | !!--------------------------------------------------------------------- |
---|
| 438 | ! |
---|
| 439 | IF( ln_timing == 1 ) CALL timing_start('p4z_meso_zdepmig') |
---|
| 440 | ! |
---|
| 441 | oxymoy(:,:) = 0. |
---|
| 442 | tempmoy(:,:) = 0. |
---|
| 443 | zdepmoy(:,:) = 0. |
---|
| 444 | depmig (:,:) = 5. |
---|
| 445 | kmig (:,:) = 1 |
---|
| 446 | ! |
---|
| 447 | ! Compute the averaged values of oxygen, temperature over the domain |
---|
| 448 | ! 150m to 500 m depth. |
---|
| 449 | ! |
---|
| 450 | DO jk =1, jpk |
---|
| 451 | DO jj = 1, jpj |
---|
| 452 | DO ji = 1, jpi |
---|
| 453 | IF (tmask(ji,jj,jk) == 1.) THEN |
---|
| 454 | IF (gdept_n(ji,jj,jk) >= 150. .AND. gdept_n(ji,jj,jk) <= 500.) THEN |
---|
| 455 | oxymoy(ji,jj) = oxymoy(ji,jj) + trb(ji,jj,jk,jpoxy)*e3t_n(ji,jj,jk)*1E6 |
---|
| 456 | tempmoy(ji,jj) = tempmoy(ji,jj) + tsn(ji,jj,jk,jp_tem)*e3t_n(ji,jj,jk) |
---|
| 457 | zdepmoy(ji,jj) = zdepmoy(ji,jj) + e3t_n(ji,jj,jk) |
---|
| 458 | ENDIF |
---|
| 459 | ENDIF |
---|
| 460 | END DO |
---|
| 461 | END DO |
---|
| 462 | END DO |
---|
| 463 | |
---|
| 464 | DO jj = 1, jpj |
---|
| 465 | DO ji = 1, jpi |
---|
| 466 | oxymoy(ji,jj) = trb(ji,jj,1,jpoxy)*1E6 - oxymoy(ji,jj) / (zdepmoy(ji,jj) + rtrn) |
---|
| 467 | tempmoy(ji,jj) = tsn(ji,jj,1,jp_tem)-tempmoy(ji,jj) / (zdepmoy(ji,jj) + rtrn) |
---|
| 468 | END DO |
---|
| 469 | END DO |
---|
| 470 | ! |
---|
| 471 | ! Computation of the migration depth based on the parameterization of |
---|
| 472 | ! Bianchi et al. (2013) |
---|
| 473 | ! ------------------------------------------------------------------- |
---|
| 474 | ! |
---|
| 475 | DO jj = 1, jpj |
---|
| 476 | DO ji = 1, jpi |
---|
| 477 | IF (tmask(ji,jj,1) == 1.) THEN |
---|
| 478 | totchl = (trb(ji,jj,1,jpnch)+trb(ji,jj,1,jpdch))*1E6 |
---|
| 479 | depmig(ji,jj) = 398. - 0.56 * oxymoy(ji,jj) -115. * log10(totchl) + 0.36 * hmld(ji,jj) -2.4 * tempmoy(ji,jj) |
---|
| 480 | ENDIF |
---|
| 481 | END DO |
---|
| 482 | END DO |
---|
| 483 | ! |
---|
| 484 | ! Computation of the corresponding jk indice |
---|
| 485 | ! ------------------------------------------ |
---|
| 486 | ! |
---|
| 487 | DO jk = 1, jpk-1 |
---|
| 488 | DO jj = 1, jpj |
---|
| 489 | DO ji = 1, jpi |
---|
| 490 | IF (depmig(ji,jj) .GE. gdepw_n(ji,jj,jk) .AND. depmig(ji,jj) .LT. gdepw_n(ji,jj,jk+1) ) THEN |
---|
| 491 | kmig(ji,jj) = jk |
---|
| 492 | ENDIF |
---|
| 493 | END DO |
---|
| 494 | END DO |
---|
| 495 | END DO |
---|
| 496 | ! |
---|
| 497 | ! Correction of the migration depth and indice based on O2 levels |
---|
| 498 | ! If O2 is too low, imposing a migration depth at this low O2 levels |
---|
| 499 | ! would lead to negative O2 concentrations (respiration while O2 is close |
---|
| 500 | ! to 0. Thus, to avoid that problem, the migration depth is adjusted so |
---|
| 501 | ! that it falls above the OMZ |
---|
| 502 | ! ----------------------------------------------------------------------- |
---|
| 503 | ! |
---|
| 504 | DO ji =1, jpi |
---|
| 505 | DO jj = 1, jpj |
---|
| 506 | IF (trb(ji,jj,kmig(ji,jj),jpoxy) < 5E-6) THEN |
---|
| 507 | DO jk = kmig(ji,jj),1,-1 |
---|
| 508 | IF (trb(ji,jj,jk,jpoxy) >= 5E-6 .AND. trb(ji,jj,jk+1,jpoxy) < 5E-6) THEN |
---|
| 509 | kmig(ji,jj) = jk |
---|
| 510 | depmig(ji,jj) = gdept_n(ji,jj,jk) |
---|
| 511 | ENDIF |
---|
| 512 | END DO |
---|
| 513 | ENDIF |
---|
| 514 | END DO |
---|
| 515 | END DO |
---|
| 516 | ! |
---|
| 517 | IF( ln_timing ) CALL timing_stop('p4z_meso_depmig') |
---|
| 518 | ! |
---|
| 519 | END SUBROUTINE p4z_meso_depmig |
---|
| 520 | |
---|
| 521 | INTEGER FUNCTION p4z_meso_alloc() |
---|
| 522 | !!---------------------------------------------------------------------- |
---|
| 523 | !! *** ROUTINE p4z_meso_alloc *** |
---|
| 524 | !!---------------------------------------------------------------------- |
---|
| 525 | ! |
---|
| 526 | ALLOCATE( depmig(jpi,jpj), kmig(jpi,jpj), STAT= p4z_meso_alloc ) |
---|
| 527 | ! |
---|
| 528 | IF( p4z_meso_alloc /= 0 ) CALL ctl_stop( 'STOP', 'p4z_meso_alloc : failed to allocate arrays.' ) |
---|
| 529 | ! |
---|
| 530 | END FUNCTION p4z_meso_alloc |
---|
| 531 | |
---|
| 532 | |
---|
[3443] | 533 | !!====================================================================== |
---|
[5656] | 534 | END MODULE p4zmeso |
---|