| 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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| 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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| 12 | !! p4z_meso_alloc : Allocate variables for mesozooplankton |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 15 | USE trc ! passive tracers common variables |
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| 16 | USE sms_pisces ! PISCES Source Minus Sink variables |
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| 17 | USE p4zprod ! production |
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| 18 | USE prtctl ! print control for debugging |
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| 19 | USE iom ! I/O manager |
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| 20 | |
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| 21 | IMPLICIT NONE |
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| 22 | PRIVATE |
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| 23 | |
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| 24 | PUBLIC p4z_meso ! called in p4zbio.F90 |
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| 25 | PUBLIC p4z_meso_init ! called in trcsms_pisces.F90 |
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| 26 | PUBLIC p4z_meso_alloc ! called in trcini_pisces.F90 |
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| 27 | |
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| 28 | !! * Shared module variables |
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| 29 | REAL(wp), PUBLIC :: part2 !: part of calcite not dissolved in mesozoo guts |
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| 30 | REAL(wp), PUBLIC :: xpref2d !: mesozoo preference for diatoms |
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| 31 | REAL(wp), PUBLIC :: xpref2n !: mesozoo preference for nanophyto |
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| 32 | REAL(wp), PUBLIC :: xpref2z !: mesozoo preference for microzooplankton |
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| 33 | REAL(wp), PUBLIC :: xpref2c !: mesozoo preference for POC |
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| 34 | REAL(wp), PUBLIC :: xthresh2zoo !: zoo feeding threshold for mesozooplankton |
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| 35 | REAL(wp), PUBLIC :: xthresh2dia !: diatoms feeding threshold for mesozooplankton |
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| 36 | REAL(wp), PUBLIC :: xthresh2phy !: nanophyto feeding threshold for mesozooplankton |
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| 37 | REAL(wp), PUBLIC :: xthresh2poc !: poc feeding threshold for mesozooplankton |
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| 38 | REAL(wp), PUBLIC :: xthresh2 !: feeding threshold for mesozooplankton |
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| 39 | REAL(wp), PUBLIC :: resrat2 !: exsudation rate of mesozooplankton |
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| 40 | REAL(wp), PUBLIC :: mzrat2 !: microzooplankton mortality rate |
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| 41 | REAL(wp), PUBLIC :: grazrat2 !: maximal mesozoo grazing rate |
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| 42 | REAL(wp), PUBLIC :: xkgraz2 !: non assimilated fraction of P by mesozoo |
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| 43 | REAL(wp), PUBLIC :: unass2 !: Efficicency of mesozoo growth |
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| 44 | REAL(wp), PUBLIC :: sigma2 !: Fraction of mesozoo excretion as DOM |
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| 45 | REAL(wp), PUBLIC :: epsher2 !: growth efficiency |
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| 46 | REAL(wp), PUBLIC :: epsher2min !: minimum growth efficiency at high food for grazing 2 |
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| 47 | REAL(wp), PUBLIC :: xsigma2 !: Width of the predation window |
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| 48 | REAL(wp), PUBLIC :: xsigma2del !: Maximum width of the predation window at low food density |
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| 49 | REAL(wp), PUBLIC :: grazflux !: mesozoo flux feeding rate |
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| 50 | REAL(wp), PUBLIC :: xfracmig !: Fractional biomass of meso that performs DVM |
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| 51 | LOGICAL , PUBLIC :: ln_dvm_meso !: Boolean to activate DVM of mesozooplankton |
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| 52 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: depmig !: DVM of mesozooplankton : migration depth |
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| 53 | INTEGER , ALLOCATABLE, SAVE, DIMENSION(:,:) :: kmig !: Vertical indice of the the migration depth |
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| 54 | |
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| 55 | !! * Substitutions |
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| 56 | # include "do_loop_substitute.h90" |
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| 57 | # include "domzgr_substitute.h90" |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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| 60 | !! $Id$ |
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| 61 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 62 | !!---------------------------------------------------------------------- |
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| 63 | CONTAINS |
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| 64 | |
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| 65 | SUBROUTINE p4z_meso( kt, knt, Kbb, Kmm, Krhs ) |
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| 66 | !!--------------------------------------------------------------------- |
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| 67 | !! *** ROUTINE p4z_meso *** |
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| 68 | !! |
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| 69 | !! ** Purpose : Compute the sources/sinks for mesozooplankton |
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| 70 | !! This includes ingestion and assimilation, flux feeding |
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| 71 | !! and mortality. We use a passive prey switching |
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| 72 | !! parameterization. |
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| 73 | !! All living compartments smaller than mesozooplankton |
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| 74 | !! are potential preys of mesozooplankton as well as small |
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| 75 | !! sinking particles |
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| 76 | !! |
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| 77 | !! ** Method : - ??? |
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| 78 | !!--------------------------------------------------------------------- |
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| 79 | INTEGER, INTENT(in) :: kt, knt ! ocean time step and ??? |
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| 80 | INTEGER, INTENT(in) :: Kbb, kmm, Krhs ! time level indices |
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| 81 | ! |
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| 82 | INTEGER :: ji, jj, jk, jkt |
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| 83 | REAL(wp) :: zcompadi, zcompaph, zcompapoc, zcompaz, zcompam |
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| 84 | REAL(wp) :: zgraze2 , zdenom, zdenom2, zfact , zfood, zfoodlim, zproport, zbeta |
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| 85 | REAL(wp) :: zmortzgoc, zfrac, zfracfe, zratio, zratio2, zfracal, zgrazcal |
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| 86 | REAL(wp) :: zepsherf, zepshert, zepsherq, zepsherv, zgraztotc, zgraztotn, zgraztotf |
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| 87 | REAL(wp) :: zmigreltime, zprcaca, zmortz, zgrasratf, zgrasratn |
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| 88 | REAL(wp) :: zrespz, ztortz, zgrazdc, zgrazz, zgrazpof, zgraznc, zgrazpoc, zgraznf, zgrazdf |
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| 89 | REAL(wp) :: zgrazfffp, zgrazfffg, zgrazffep, zgrazffeg, zrum, zcodel, zargu, zval, zdep |
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| 90 | REAL(wp) :: zsigma, zdiffdn, ztmp1, ztmp2, ztmp3, ztmp4, ztmptot, zmigthick |
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| 91 | CHARACTER (len=25) :: charout |
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| 92 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zgrazing, zfezoo2 |
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| 93 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zgrarem, zgraref, zgrapoc, zgrapof, zgrabsi |
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| 94 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zgramigrem, zgramigref, zgramigpoc, zgramigpof |
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| 95 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zgramigbsi |
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| 96 | !!--------------------------------------------------------------------- |
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| 97 | ! |
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| 98 | IF( ln_timing ) CALL timing_start('p4z_meso') |
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| 99 | ! |
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| 100 | zgrazing(:,:,:) = 0._wp ; zgrapoc(:,:,:) = 0._wp |
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| 101 | zfezoo2 (:,:,:) = 0._wp ; zgrarem(:,:,:) = 0._wp |
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| 102 | zgraref (:,:,:) = 0._wp ; zgrapof(:,:,:) = 0._wp |
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| 103 | zgrabsi (:,:,:) = 0._wp |
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| 104 | ! |
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| 105 | ! |
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| 106 | ! Diurnal vertical migration of mesozooplankton |
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| 107 | ! Computation of the migration depth |
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| 108 | ! --------------------------------------------- |
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| 109 | IF (ln_dvm_meso) CALL p4z_meso_depmig( Kbb, Kmm ) |
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| 110 | ! |
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| 111 | DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpkm1) |
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| 112 | zcompam = MAX( ( tr(ji,jj,jk,jpmes,Kbb) - 1.e-9 ), 0.e0 ) |
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| 113 | zfact = xstep * tgfunc2(ji,jj,jk) * zcompam |
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| 114 | |
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| 115 | |
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| 116 | ! linear mortality of mesozooplankton |
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| 117 | ! A michaelis menten modulation term is used to avoid extinction of |
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| 118 | ! mesozooplankton at very low food concentration. Mortality is |
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| 119 | |
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| 120 | ! enhanced in low O2 waters |
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| 121 | ! ----------------------------------------------------------------- |
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| 122 | zrespz = resrat2 * zfact * ( tr(ji,jj,jk,jpmes,Kbb) / ( xkmort + tr(ji,jj,jk,jpmes,Kbb) ) & |
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| 123 | & + 3. * nitrfac(ji,jj,jk) ) |
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| 124 | |
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| 125 | ! Zooplankton quadratic mortality. A square function has been selected with |
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| 126 | ! to mimic predation and disease (density dependent mortality). It also tends |
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| 127 | ! to stabilise the model |
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| 128 | ! ------------------------------------------------------------------------- |
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| 129 | ztortz = mzrat2 * 1.e6 * zfact * tr(ji,jj,jk,jpmes,Kbb) * (1. - nitrfac(ji,jj,jk) ) |
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| 130 | ! |
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| 131 | |
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| 132 | ! Computation of the abundance of the preys |
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| 133 | ! A threshold can be specified in the namelist |
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| 134 | ! -------------------------------------------- |
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| 135 | zcompadi = MAX( ( tr(ji,jj,jk,jpdia,Kbb) - xthresh2dia ), 0.e0 ) |
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| 136 | zcompaz = MAX( ( tr(ji,jj,jk,jpzoo,Kbb) - xthresh2zoo ), 0.e0 ) |
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| 137 | zcompapoc = MAX( ( tr(ji,jj,jk,jppoc,Kbb) - xthresh2poc ), 0.e0 ) |
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| 138 | |
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| 139 | ! Size effect of nanophytoplankton on grazing : the smaller it is, the less prone |
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| 140 | ! it is to predation by mesozooplankton. We use a quota dependant parameterization |
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| 141 | ! as a low quota indicates oligotrophic conditions which are charatcerized by |
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| 142 | ! small cells |
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| 143 | ! ------------------------------------------------------------------------------- |
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| 144 | zcompaph = MAX( ( tr(ji,jj,jk,jpphy,Kbb) - xthresh2phy ), 0.e0 ) |
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| 145 | |
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| 146 | ! Mesozooplankton grazing |
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| 147 | ! The total amount of food is the sum of all preys accessible to mesozooplankton |
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| 148 | ! multiplied by their food preference |
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| 149 | ! A threshold can be specified in the namelist (xthresh2). However, when food |
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| 150 | ! concentration is close to this threshold, it is decreased to avoid the |
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| 151 | ! accumulation of food in the mesozoopelagic domain |
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| 152 | ! ------------------------------------------------------------------------------- |
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| 153 | zfood = xpref2d * zcompadi + xpref2z * zcompaz + xpref2n * zcompaph + xpref2c * zcompapoc |
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| 154 | zfoodlim = MAX( 0., zfood - MIN( 0.5 * zfood, xthresh2 ) ) |
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| 155 | zdenom = zfoodlim / ( xkgraz2 + zfoodlim ) |
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| 156 | zdenom2 = zdenom / ( zfood + rtrn ) |
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| 157 | zgraze2 = grazrat2 * xstep * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jpmes,Kbb) * (1. - nitrfac(ji,jj,jk)) |
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| 158 | |
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| 159 | |
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| 160 | ! An active switching parameterization is used here. |
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| 161 | ! We don't use the KTW parameterization proposed by |
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| 162 | ! Vallina et al. because it tends to produce too steady biomass |
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| 163 | ! composition and the variance of Chl is too low as it grazes |
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| 164 | ! too strongly on winning organisms. We use a generalized |
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| 165 | ! switching parameterization proposed by Morozov and |
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| 166 | ! Petrovskii (2013) |
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| 167 | ! ------------------------------------------------------------ |
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| 168 | ! The width of the selection window is increased when preys |
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| 169 | ! have low abundance, .i.e. zooplankton become less specific |
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| 170 | ! to avoid starvation. |
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| 171 | ! ---------------------------------------------------------- |
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| 172 | zsigma = 1.0 - zdenom**2/(0.05**2+zdenom**2) |
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| 173 | zsigma = xsigma2 + xsigma2del * zsigma |
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| 174 | ! Nanophytoplankton and diatoms are the only preys considered |
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| 175 | ! to be close enough to have potential interference |
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| 176 | ! ----------------------------------------------------------- |
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| 177 | zdiffdn = exp( -ABS(log(1.67 * sizen(ji,jj,jk) / (5.0 * sized(ji,jj,jk) + rtrn )) )**2 / zsigma**2 ) |
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| 178 | ztmp1 = xpref2n * zcompaph * ( zcompaph + zdiffdn * zcompadi ) / ( 1.0 + zdiffdn ) |
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| 179 | ztmp2 = xpref2c * zcompapoc**2 |
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| 180 | ztmp3 = xpref2d * zcompadi * ( zdiffdn * zcompadi + zcompaph ) / ( 1.0 + zdiffdn ) |
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| 181 | ztmp4 = xpref2z * zcompaz**2 |
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| 182 | ztmptot = ztmp1 + ztmp2 + ztmp3 + ztmp4 + rtrn |
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| 183 | ztmp1 = ztmp1 / ztmptot |
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| 184 | ztmp2 = ztmp2 / ztmptot |
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| 185 | ztmp3 = ztmp3 / ztmptot |
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| 186 | ztmp4 = ztmp4 / ztmptot |
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| 187 | |
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| 188 | ! Mesozooplankton regular grazing on the different preys |
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| 189 | ! ------------------------------------------------------ |
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| 190 | zgrazdc = zgraze2 * ztmp3 * zdenom ! diatoms |
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| 191 | zgraznc = zgraze2 * ztmp1 * zdenom ! nanophytoplankton |
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| 192 | zgrazpoc = zgraze2 * ztmp2 * zdenom ! small POC |
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| 193 | zgrazz = zgraze2 * ztmp4 * zdenom ! microzooplankton |
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| 194 | |
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| 195 | ! Ingestion rates of the Fe content of the different preys |
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| 196 | zgraznf = zgraznc * tr(ji,jj,jk,jpnfe,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) + rtrn) |
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| 197 | zgrazdf = zgrazdc * tr(ji,jj,jk,jpdfe,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn) |
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| 198 | zgrazpof = zgrazpoc * tr(ji,jj,jk,jpsfe,Kbb) / ( tr(ji,jj,jk,jppoc,Kbb) + rtrn) |
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| 199 | |
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| 200 | ! Mesozooplankton flux feeding on GOC and POC. The feeding pressure |
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| 201 | ! is proportional to the flux |
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| 202 | ! ------------------------------------------------------------------ |
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| 203 | zgrazffeg = grazflux * xstep * wsbio4(ji,jj,jk) & |
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| 204 | & * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jpgoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & |
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| 205 | & * (1. - nitrfac(ji,jj,jk)) |
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| 206 | zgrazfffg = zgrazffeg * tr(ji,jj,jk,jpbfe,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) |
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| 207 | zgrazffep = grazflux * xstep * wsbio3(ji,jj,jk) & |
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| 208 | & * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jppoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & |
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| 209 | & * (1. - nitrfac(ji,jj,jk)) |
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| 210 | zgrazfffp = zgrazffep * tr(ji,jj,jk,jpsfe,Kbb) / (tr(ji,jj,jk,jppoc,Kbb) + rtrn) |
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| 211 | ! |
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| 212 | zgraztotc = zgrazdc + zgrazz + zgraznc + zgrazpoc + zgrazffep + zgrazffeg |
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| 213 | ! Compute the proportion of filter feeders. It is assumed steady state. |
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| 214 | ! --------------------------------------------------------------------- |
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| 215 | zproport = 0._wp |
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| 216 | IF( gdepw(ji,jj,jk+1,Kmm) > MAX(hmld(ji,jj), heup_01(ji,jj) ) ) THEN |
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| 217 | zproport = (zgrazffep + zgrazffeg)/(rtrn + zgraztotc) |
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| 218 | ENDIF |
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| 219 | |
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| 220 | ! Compute fractionation of aggregates. It is assumed that |
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| 221 | ! diatoms based aggregates are more prone to fractionation |
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| 222 | ! since they are more porous (marine snow instead of fecal pellets) |
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| 223 | ! ----------------------------------------------------------------- |
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| 224 | |
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| 225 | ! Compute fractionation of aggregates. It is assumed that |
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| 226 | ! diatoms based aggregates are more prone to fractionation |
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| 227 | ! since they are more porous (marine snow instead of fecal pellets) |
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| 228 | zratio = tr(ji,jj,jk,jpgsi,Kbb) / ( tr(ji,jj,jk,jpgoc,Kbb) + rtrn ) |
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| 229 | zratio2 = zratio * zratio |
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| 230 | zfrac = zproport * grazflux * xstep * wsbio4(ji,jj,jk) & |
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| 231 | & * tr(ji,jj,jk,jpgoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & |
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| 232 | & * ( 0.4 + 3.6 * zratio2 / ( 1.**2 + zratio2 ) ) |
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| 233 | zfracfe = zfrac * tr(ji,jj,jk,jpbfe,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) |
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| 234 | |
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| 235 | ! Flux feeding is multiplied by the fractional biomass of flux feeders |
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| 236 | zgrazffep = zproport * zgrazffep |
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| 237 | zgrazffeg = zproport * zgrazffeg |
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| 238 | zgrazfffp = zproport * zgrazfffp |
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| 239 | zgrazfffg = zproport * zgrazfffg |
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| 240 | zgrazdc = (1.0 - zproport) * zgrazdc |
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| 241 | zgraznc = (1.0 - zproport) * zgraznc |
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| 242 | zgrazz = (1.0 - zproport) * zgrazz |
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| 243 | zgrazpoc = (1.0 - zproport) * zgrazpoc |
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| 244 | zgrazdf = (1.0 - zproport) * zgrazdf |
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| 245 | zgraznf = (1.0 - zproport) * zgraznf |
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| 246 | zgrazpof = (1.0 - zproport) * zgrazpof |
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| 247 | |
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| 248 | |
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| 249 | ! Total ingestion rates in C, N, Fe |
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| 250 | zgraztotc = zgrazdc + zgrazz + zgraznc + zgrazpoc + zgrazffep + zgrazffeg |
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| 251 | zgraztotn = zgrazdc * quotad(ji,jj,jk) + zgrazz + zgraznc * quotan(ji,jj,jk) & |
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| 252 | & + zgrazpoc + zgrazffep + zgrazffeg |
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| 253 | zgraztotf = zgrazdf + zgraznf + zgrazz * feratz + zgrazpof + zgrazfffp + zgrazfffg |
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| 254 | |
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| 255 | ! Total grazing ( grazing by microzoo is already computed in p4zmicro ) |
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| 256 | zgrazing(ji,jj,jk) = zgraztotc |
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| 257 | |
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| 258 | ! Mesozooplankton efficiency. |
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| 259 | ! We adopt a formulation proposed by Mitra et al. (2007) |
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| 260 | ! The gross growth efficiency is controled by the most limiting nutrient. |
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| 261 | ! Growth is also further decreased when the food quality is poor. This is currently |
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| 262 | ! hard coded : it can be decreased by up to 50% (zepsherq) |
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| 263 | ! GGE can also be decreased when food quantity is high, zepsherf (Montagnes and |
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| 264 | ! Fulton, 2012) |
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| 265 | ! ----------------------------------------------------------------------------------- |
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| 266 | |
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| 267 | zgrasratf = ( zgraztotf + rtrn )/ ( zgraztotc + rtrn ) |
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| 268 | zgrasratn = ( zgraztotn + rtrn )/ ( zgraztotc + rtrn ) |
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| 269 | zepshert = MIN( 1., zgrasratn, zgrasratf / feratm) |
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| 270 | zbeta = MAX(0., (epsher2 - epsher2min) ) |
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| 271 | ! Food quantity deprivation of GGE |
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| 272 | zepsherf = epsher2min + zbeta / ( 1.0 + 0.04E6 * 12. * zfood * zbeta ) |
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| 273 | ! Food quality deprivation of GGE |
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| 274 | zepsherq = 0.5 + (1.0 - 0.5) * zepshert * ( 1.0 + 1.0 ) / ( zepshert + 1.0 ) |
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| 275 | ! Actual GGE |
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| 276 | zepsherv = zepsherf * zepshert * zepsherq |
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| 277 | ! |
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| 278 | ! Impact of grazing on the prognostic variables |
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| 279 | ! --------------------------------------------- |
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| 280 | zmortz = ztortz + zrespz |
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| 281 | ! Mortality induced by the upper trophic levels, ztortz, is allocated |
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| 282 | ! according to a infinite chain of predators (ANderson et al., 2013) |
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| 283 | zmortzgoc = unass2 / ( 1. - epsher2 ) * ztortz + zrespz |
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| 284 | |
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| 285 | tr(ji,jj,jk,jpmes,Krhs) = tr(ji,jj,jk,jpmes,Krhs) - zmortz + zepsherv * zgraztotc |
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| 286 | tr(ji,jj,jk,jpdia,Krhs) = tr(ji,jj,jk,jpdia,Krhs) - zgrazdc |
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| 287 | tr(ji,jj,jk,jpzoo,Krhs) = tr(ji,jj,jk,jpzoo,Krhs) - zgrazz |
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| 288 | tr(ji,jj,jk,jpphy,Krhs) = tr(ji,jj,jk,jpphy,Krhs) - zgraznc |
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| 289 | tr(ji,jj,jk,jpnch,Krhs) = tr(ji,jj,jk,jpnch,Krhs) - zgraznc * tr(ji,jj,jk,jpnch,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) + rtrn ) |
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| 290 | tr(ji,jj,jk,jpdch,Krhs) = tr(ji,jj,jk,jpdch,Krhs) - zgrazdc * tr(ji,jj,jk,jpdch,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn ) |
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| 291 | tr(ji,jj,jk,jpdsi,Krhs) = tr(ji,jj,jk,jpdsi,Krhs) - zgrazdc * tr(ji,jj,jk,jpdsi,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn ) |
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| 292 | zgrabsi(ji,jj,jk) = zgrazdc * tr(ji,jj,jk,jpdsi,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn ) |
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| 293 | ! |
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| 294 | tr(ji,jj,jk,jpnfe,Krhs) = tr(ji,jj,jk,jpnfe,Krhs) - zgraznf |
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| 295 | tr(ji,jj,jk,jpdfe,Krhs) = tr(ji,jj,jk,jpdfe,Krhs) - zgrazdf |
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| 296 | ! |
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| 297 | tr(ji,jj,jk,jppoc,Krhs) = tr(ji,jj,jk,jppoc,Krhs) - zgrazpoc - zgrazffep + zfrac |
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| 298 | prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + zfrac |
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| 299 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zgrazpoc - zgrazffep |
|---|
| 300 | ! |
|---|
| 301 | tr(ji,jj,jk,jpgoc,Krhs) = tr(ji,jj,jk,jpgoc,Krhs) - zgrazffeg - zfrac |
|---|
| 302 | consgoc(ji,jj,jk) = consgoc(ji,jj,jk) - zgrazffeg - zfrac |
|---|
| 303 | ! |
|---|
| 304 | tr(ji,jj,jk,jpsfe,Krhs) = tr(ji,jj,jk,jpsfe,Krhs) - zgrazpof - zgrazfffp + zfracfe |
|---|
| 305 | tr(ji,jj,jk,jpbfe,Krhs) = tr(ji,jj,jk,jpbfe,Krhs) - zgrazfffg - zfracfe |
|---|
| 306 | |
|---|
| 307 | ! Calcite remineralization due to zooplankton activity |
|---|
| 308 | ! part2 of the ingested calcite is not dissolving in the |
|---|
| 309 | ! acidic gut |
|---|
| 310 | ! ------------------------------------------------------ |
|---|
| 311 | zfracal = tr(ji,jj,jk,jpcal,Kbb) / ( tr(ji,jj,jk,jpgoc,Kbb) + rtrn ) |
|---|
| 312 | zgrazcal = zgrazffeg * (1. - part2) * zfracal |
|---|
| 313 | ! calcite production by zooplankton activity |
|---|
| 314 | zprcaca = xfracal(ji,jj,jk) * zgraznc |
|---|
| 315 | prodcal(ji,jj,jk) = prodcal(ji,jj,jk) + zprcaca ! prodcal=prodcal(nanophy)+prodcal(microzoo)+prodcal(mesozoo) |
|---|
| 316 | ! |
|---|
| 317 | zprcaca = part2 * zprcaca |
|---|
| 318 | tr(ji,jj,jk,jpdic,Krhs) = tr(ji,jj,jk,jpdic,Krhs) + zgrazcal - zprcaca |
|---|
| 319 | tr(ji,jj,jk,jptal,Krhs) = tr(ji,jj,jk,jptal,Krhs) + 2. * ( zgrazcal - zprcaca ) |
|---|
| 320 | tr(ji,jj,jk,jpcal,Krhs) = tr(ji,jj,jk,jpcal,Krhs) - zgrazcal + zprcaca |
|---|
| 321 | |
|---|
| 322 | ! Computation of total excretion and egestion by mesozoo. |
|---|
| 323 | ! --------------------------------------------------------- |
|---|
| 324 | zgrarem(ji,jj,jk) = zgraztotc * ( 1. - zepsherv - unass2 ) & |
|---|
| 325 | & + ( 1. - epsher2 - unass2 ) / ( 1. - epsher2 ) * ztortz |
|---|
| 326 | zgraref(ji,jj,jk) = zgraztotc * MAX( 0. , ( 1. - unass2 ) * zgrasratf - feratm * zepsherv ) & |
|---|
| 327 | & + feratm * ( ( 1. - epsher2 - unass2 ) /( 1. - epsher2 ) * ztortz ) |
|---|
| 328 | zgrapoc(ji,jj,jk) = zgraztotc * unass2 + zmortzgoc |
|---|
| 329 | zgrapof(ji,jj,jk) = zgraztotf * unass2 + feratm * zmortzgoc |
|---|
| 330 | ! |
|---|
| 331 | END_3D |
|---|
| 332 | |
|---|
| 333 | ! Computation of the effect of DVM by mesozooplankton |
|---|
| 334 | ! This part is only activated if ln_dvm_meso is set to true |
|---|
| 335 | ! The parameterization has been published in Gorgues et al. (2019). |
|---|
| 336 | ! ----------------------------------------------------------------- |
|---|
| 337 | IF (ln_dvm_meso) THEN |
|---|
| 338 | ALLOCATE( zgramigrem(jpi,jpj), zgramigref(jpi,jpj), zgramigpoc(jpi,jpj), zgramigpof(jpi,jpj) ) |
|---|
| 339 | ALLOCATE( zgramigbsi(jpi,jpj) ) |
|---|
| 340 | zgramigrem(:,:) = 0.0 ; zgramigref(:,:) = 0.0 |
|---|
| 341 | zgramigpoc(:,:) = 0.0 ; zgramigpof(:,:) = 0.0 |
|---|
| 342 | zgramigbsi(:,:) = 0.0 |
|---|
| 343 | |
|---|
| 344 | ! Compute the amount of materials that will go into vertical migration |
|---|
| 345 | ! This fraction is sumed over the euphotic zone and is removed from |
|---|
| 346 | ! the fluxes driven by mesozooplankton in the euphotic zone. |
|---|
| 347 | ! -------------------------------------------------------------------- |
|---|
| 348 | DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpk) |
|---|
| 349 | zmigreltime = (1. - strn(ji,jj)) |
|---|
| 350 | zmigthick = (1. - zmigreltime ) * e3t(ji,jj,jk,Kmm) * tmask(ji,jj,jk) |
|---|
| 351 | IF ( gdept(ji,jj,jk,Kmm) <= heup(ji,jj) ) THEN |
|---|
| 352 | zgramigrem(ji,jj) = zgramigrem(ji,jj) + xfracmig * zgrarem(ji,jj,jk) * zmigthick |
|---|
| 353 | zgramigref(ji,jj) = zgramigref(ji,jj) + xfracmig * zgraref(ji,jj,jk) * zmigthick |
|---|
| 354 | zgramigpoc(ji,jj) = zgramigpoc(ji,jj) + xfracmig * zgrapoc(ji,jj,jk) * zmigthick |
|---|
| 355 | zgramigpof(ji,jj) = zgramigpof(ji,jj) + xfracmig * zgrapof(ji,jj,jk) * zmigthick |
|---|
| 356 | zgramigbsi(ji,jj) = zgramigbsi(ji,jj) + xfracmig * zgrabsi(ji,jj,jk) * zmigthick |
|---|
| 357 | |
|---|
| 358 | zgrarem(ji,jj,jk) = zgrarem(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
|---|
| 359 | zgraref(ji,jj,jk) = zgraref(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
|---|
| 360 | zgrapoc(ji,jj,jk) = zgrapoc(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
|---|
| 361 | zgrapof(ji,jj,jk) = zgrapof(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
|---|
| 362 | zgrabsi(ji,jj,jk) = zgrabsi(ji,jj,jk) * ( (1.0 - xfracmig) + xfracmig * zmigreltime ) |
|---|
| 363 | ENDIF |
|---|
| 364 | END_3D |
|---|
| 365 | |
|---|
| 366 | ! The inorganic and organic fluxes induced by migrating organisms are added at the |
|---|
| 367 | ! the migration depth (corresponding indice is set by kmig) |
|---|
| 368 | ! -------------------------------------------------------------------------------- |
|---|
| 369 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
|---|
| 370 | IF( tmask(ji,jj,1) == 1.) THEN |
|---|
| 371 | jkt = kmig(ji,jj) |
|---|
| 372 | zdep = 1. / e3t(ji,jj,jkt,Kmm) |
|---|
| 373 | zgrarem(ji,jj,jkt) = zgrarem(ji,jj,jkt) + zgramigrem(ji,jj) * zdep |
|---|
| 374 | zgraref(ji,jj,jkt) = zgraref(ji,jj,jkt) + zgramigref(ji,jj) * zdep |
|---|
| 375 | zgrapoc(ji,jj,jkt) = zgrapoc(ji,jj,jkt) + zgramigpoc(ji,jj) * zdep |
|---|
| 376 | zgrapof(ji,jj,jkt) = zgrapof(ji,jj,jkt) + zgramigpof(ji,jj) * zdep |
|---|
| 377 | zgrabsi(ji,jj,jkt) = zgrabsi(ji,jj,jkt) + zgramigbsi(ji,jj) * zdep |
|---|
| 378 | ENDIF |
|---|
| 379 | END_2D |
|---|
| 380 | ! |
|---|
| 381 | ! Deallocate temporary variables |
|---|
| 382 | ! ------------------------------ |
|---|
| 383 | DEALLOCATE( zgramigrem, zgramigref, zgramigpoc, zgramigpof, zgramigbsi ) |
|---|
| 384 | ! End of the ln_dvm_meso part |
|---|
| 385 | ENDIF |
|---|
| 386 | |
|---|
| 387 | ! Update the arrays TRA which contain the biological sources and sinks |
|---|
| 388 | ! This only concerns the variables which are affected by DVM (inorganic |
|---|
| 389 | ! nutrients, DOC agands, and particulate organic carbon). |
|---|
| 390 | DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpk) |
|---|
| 391 | tr(ji,jj,jk,jppo4,Krhs) = tr(ji,jj,jk,jppo4,Krhs) + zgrarem(ji,jj,jk) * sigma2 |
|---|
| 392 | tr(ji,jj,jk,jpnh4,Krhs) = tr(ji,jj,jk,jpnh4,Krhs) + zgrarem(ji,jj,jk) * sigma2 |
|---|
| 393 | tr(ji,jj,jk,jpdoc,Krhs) = tr(ji,jj,jk,jpdoc,Krhs) + zgrarem(ji,jj,jk) * ( 1. - sigma2 ) |
|---|
| 394 | ! |
|---|
| 395 | IF( ln_ligand ) & |
|---|
| 396 | & tr(ji,jj,jk,jplgw,Krhs) = tr(ji,jj,jk,jplgw,Krhs) + zgrarem(ji,jj,jk) * ( 1. - sigma2 ) * ldocz |
|---|
| 397 | ! |
|---|
| 398 | tr(ji,jj,jk,jpoxy,Krhs) = tr(ji,jj,jk,jpoxy,Krhs) - o2ut * zgrarem(ji,jj,jk) * sigma2 |
|---|
| 399 | tr(ji,jj,jk,jpfer,Krhs) = tr(ji,jj,jk,jpfer,Krhs) + zgraref(ji,jj,jk) |
|---|
| 400 | zfezoo2(ji,jj,jk) = zgraref(ji,jj,jk) |
|---|
| 401 | tr(ji,jj,jk,jpdic,Krhs) = tr(ji,jj,jk,jpdic,Krhs) + zgrarem(ji,jj,jk) * sigma2 |
|---|
| 402 | tr(ji,jj,jk,jptal,Krhs) = tr(ji,jj,jk,jptal,Krhs) + rno3 * zgrarem(ji,jj,jk) * sigma2 |
|---|
| 403 | tr(ji,jj,jk,jpgoc,Krhs) = tr(ji,jj,jk,jpgoc,Krhs) + zgrapoc(ji,jj,jk) |
|---|
| 404 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zgrapoc(ji,jj,jk) |
|---|
| 405 | tr(ji,jj,jk,jpbfe,Krhs) = tr(ji,jj,jk,jpbfe,Krhs) + zgrapof(ji,jj,jk) |
|---|
| 406 | tr(ji,jj,jk,jpgsi,Krhs) = tr(ji,jj,jk,jpgsi,Krhs) + zgrabsi(ji,jj,jk) |
|---|
| 407 | END_3D |
|---|
| 408 | ! |
|---|
| 409 | ! Write the output |
|---|
| 410 | IF( lk_iomput .AND. knt == nrdttrc ) THEN |
|---|
| 411 | CALL iom_put( "PCAL" , prodcal(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ) ! Calcite production |
|---|
| 412 | CALL iom_put( "GRAZ2" , zgrazing(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ) ! Total grazing of phyto by zoo |
|---|
| 413 | CALL iom_put( "FEZOO2", zfezoo2(:,:,:) * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) ) |
|---|
| 414 | IF( ln_ligand ) & |
|---|
| 415 | & CALL iom_put( "LPRODZ2", zgrarem(ji,jj,jk) * ( 1. - sigma2 ) * ldocz * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) ) |
|---|
| 416 | ENDIF |
|---|
| 417 | ! |
|---|
| 418 | IF(sn_cfctl%l_prttrc) THEN ! print mean trends (used for debugging) |
|---|
| 419 | WRITE(charout, FMT="('meso')") |
|---|
| 420 | CALL prt_ctl_info( charout, cdcomp = 'top' ) |
|---|
| 421 | CALL prt_ctl(tab4d_1=tr(:,:,:,:,Krhs), mask1=tmask, clinfo=ctrcnm) |
|---|
| 422 | ENDIF |
|---|
| 423 | ! |
|---|
| 424 | IF( ln_timing ) CALL timing_stop('p4z_meso') |
|---|
| 425 | ! |
|---|
| 426 | END SUBROUTINE p4z_meso |
|---|
| 427 | |
|---|
| 428 | |
|---|
| 429 | SUBROUTINE p4z_meso_init |
|---|
| 430 | !!---------------------------------------------------------------------- |
|---|
| 431 | !! *** ROUTINE p4z_meso_init *** |
|---|
| 432 | !! |
|---|
| 433 | !! ** Purpose : Initialization of mesozooplankton parameters |
|---|
| 434 | !! |
|---|
| 435 | !! ** Method : Read the namp4zmes namelist and check the parameters |
|---|
| 436 | !! called at the first timestep (nittrc000) |
|---|
| 437 | !! |
|---|
| 438 | !! ** input : Namelist nampismes |
|---|
| 439 | !!---------------------------------------------------------------------- |
|---|
| 440 | INTEGER :: ios ! Local integer |
|---|
| 441 | ! |
|---|
| 442 | NAMELIST/namp4zmes/ part2, grazrat2, resrat2, mzrat2, xpref2n, xpref2d, xpref2z, & |
|---|
| 443 | & xpref2c, xthresh2dia, xthresh2phy, xthresh2zoo, xthresh2poc, & |
|---|
| 444 | & xthresh2, xkgraz2, epsher2, epsher2min, sigma2, unass2, grazflux, ln_dvm_meso, & |
|---|
| 445 | & xsigma2, xsigma2del, xfracmig |
|---|
| 446 | !!---------------------------------------------------------------------- |
|---|
| 447 | ! |
|---|
| 448 | IF(lwp) THEN |
|---|
| 449 | WRITE(numout,*) |
|---|
| 450 | WRITE(numout,*) 'p4z_meso_init : Initialization of mesozooplankton parameters' |
|---|
| 451 | WRITE(numout,*) '~~~~~~~~~~~~~' |
|---|
| 452 | ENDIF |
|---|
| 453 | ! |
|---|
| 454 | READ ( numnatp_ref, namp4zmes, IOSTAT = ios, ERR = 901) |
|---|
| 455 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namp4zmes in reference namelist' ) |
|---|
| 456 | |
|---|
| 457 | READ ( numnatp_cfg, namp4zmes, IOSTAT = ios, ERR = 902 ) |
|---|
| 458 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namp4zmes in configuration namelist' ) |
|---|
| 459 | IF(lwm) WRITE( numonp, namp4zmes ) |
|---|
| 460 | ! |
|---|
| 461 | IF(lwp) THEN ! control print |
|---|
| 462 | WRITE(numout,*) ' Namelist : namp4zmes' |
|---|
| 463 | WRITE(numout,*) ' part of calcite not dissolved in mesozoo guts part2 =', part2 |
|---|
| 464 | WRITE(numout,*) ' mesozoo preference for phyto xpref2n =', xpref2n |
|---|
| 465 | WRITE(numout,*) ' mesozoo preference for diatoms xpref2d =', xpref2d |
|---|
| 466 | WRITE(numout,*) ' mesozoo preference for zoo xpref2z =', xpref2z |
|---|
| 467 | WRITE(numout,*) ' mesozoo preference for poc xpref2c =', xpref2c |
|---|
| 468 | WRITE(numout,*) ' microzoo feeding threshold for mesozoo xthresh2zoo =', xthresh2zoo |
|---|
| 469 | WRITE(numout,*) ' diatoms feeding threshold for mesozoo xthresh2dia =', xthresh2dia |
|---|
| 470 | WRITE(numout,*) ' nanophyto feeding threshold for mesozoo xthresh2phy =', xthresh2phy |
|---|
| 471 | WRITE(numout,*) ' poc feeding threshold for mesozoo xthresh2poc =', xthresh2poc |
|---|
| 472 | WRITE(numout,*) ' feeding threshold for mesozooplankton xthresh2 =', xthresh2 |
|---|
| 473 | WRITE(numout,*) ' exsudation rate of mesozooplankton resrat2 =', resrat2 |
|---|
| 474 | WRITE(numout,*) ' mesozooplankton mortality rate mzrat2 =', mzrat2 |
|---|
| 475 | WRITE(numout,*) ' maximal mesozoo grazing rate grazrat2 =', grazrat2 |
|---|
| 476 | WRITE(numout,*) ' mesozoo flux feeding rate grazflux =', grazflux |
|---|
| 477 | WRITE(numout,*) ' non assimilated fraction of P by mesozoo unass2 =', unass2 |
|---|
| 478 | WRITE(numout,*) ' Efficiency of Mesozoo growth epsher2 =', epsher2 |
|---|
| 479 | WRITE(numout,*) ' Minimum Efficiency of Mesozoo growth epsher2min =', epsher2min |
|---|
| 480 | WRITE(numout,*) ' Fraction of mesozoo excretion as DOM sigma2 =', sigma2 |
|---|
| 481 | WRITE(numout,*) ' half sturation constant for grazing 2 xkgraz2 =', xkgraz2 |
|---|
| 482 | WRITE(numout,*) ' Width of the grazing window xsigma2 =', xsigma2 |
|---|
| 483 | WRITE(numout,*) ' Maximum additional width of the grazing window xsigma2del =', xsigma2del |
|---|
| 484 | WRITE(numout,*) ' Diurnal vertical migration of mesozoo. ln_dvm_meso =', ln_dvm_meso |
|---|
| 485 | WRITE(numout,*) ' Fractional biomass of meso that performs DVM xfracmig =', xfracmig |
|---|
| 486 | ENDIF |
|---|
| 487 | ! |
|---|
| 488 | END SUBROUTINE p4z_meso_init |
|---|
| 489 | |
|---|
| 490 | SUBROUTINE p4z_meso_depmig( Kbb, Kmm ) |
|---|
| 491 | !!---------------------------------------------------------------------- |
|---|
| 492 | !! *** ROUTINE p4z_meso_depmig *** |
|---|
| 493 | !! |
|---|
| 494 | !! ** Purpose : Computation the migration depth of mesozooplankton |
|---|
| 495 | !! |
|---|
| 496 | !! ** Method : Computes the DVM depth of mesozooplankton from oxygen |
|---|
| 497 | !! temperature and chlorophylle following the parameterization |
|---|
| 498 | !! proposed by Bianchi et al. (2013) |
|---|
| 499 | !!---------------------------------------------------------------------- |
|---|
| 500 | INTEGER, INTENT(in) :: Kbb, kmm ! time level indices |
|---|
| 501 | ! |
|---|
| 502 | INTEGER :: ji, jj, jk |
|---|
| 503 | ! |
|---|
| 504 | REAL(wp) :: ztotchl, z1dep |
|---|
| 505 | REAL(wp), DIMENSION(jpi,jpj) :: oxymoy, tempmoy, zdepmoy |
|---|
| 506 | |
|---|
| 507 | !!--------------------------------------------------------------------- |
|---|
| 508 | ! |
|---|
| 509 | IF( ln_timing ) CALL timing_start('p4z_meso_depmig') |
|---|
| 510 | ! |
|---|
| 511 | oxymoy(:,:) = 0. |
|---|
| 512 | tempmoy(:,:) = 0. |
|---|
| 513 | zdepmoy(:,:) = 0. |
|---|
| 514 | depmig (:,:) = 5. |
|---|
| 515 | kmig (:,:) = 1 |
|---|
| 516 | ! |
|---|
| 517 | ! Compute the averaged values of oxygen, temperature over the domain |
|---|
| 518 | ! 150m to 500 m depth. |
|---|
| 519 | ! ------------------------------------------------------------------ |
|---|
| 520 | DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpk) |
|---|
| 521 | IF( tmask(ji,jj,jk) == 1.) THEN |
|---|
| 522 | IF( gdept(ji,jj,jk,Kmm) >= 150. .AND. gdept(ji,jj,jk,kmm) <= 500.) THEN |
|---|
| 523 | oxymoy(ji,jj) = oxymoy(ji,jj) + tr(ji,jj,jk,jpoxy,Kbb) * 1E6 * e3t(ji,jj,jk,Kmm) |
|---|
| 524 | tempmoy(ji,jj) = tempmoy(ji,jj) + ts(ji,jj,jk,jp_tem,kmm) * e3t(ji,jj,jk,kmm) |
|---|
| 525 | zdepmoy(ji,jj) = zdepmoy(ji,jj) + e3t(ji,jj,jk,Kmm) |
|---|
| 526 | ENDIF |
|---|
| 527 | ENDIF |
|---|
| 528 | END_3D |
|---|
| 529 | |
|---|
| 530 | ! Compute the difference between surface values and the mean values in the mesopelagic |
|---|
| 531 | ! domain |
|---|
| 532 | ! ------------------------------------------------------------------------------------ |
|---|
| 533 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
|---|
| 534 | z1dep = 1. / ( zdepmoy(ji,jj) + rtrn ) |
|---|
| 535 | oxymoy(ji,jj) = tr(ji,jj,1,jpoxy,Kbb) * 1E6 - oxymoy(ji,jj) * z1dep |
|---|
| 536 | tempmoy(ji,jj) = ts(ji,jj,1,jp_tem,Kmm) - tempmoy(ji,jj) * z1dep |
|---|
| 537 | END_2D |
|---|
| 538 | ! |
|---|
| 539 | ! Computation of the migration depth based on the parameterization of |
|---|
| 540 | ! Bianchi et al. (2013) |
|---|
| 541 | ! ------------------------------------------------------------------- |
|---|
| 542 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
|---|
| 543 | IF( tmask(ji,jj,1) == 1. ) THEN |
|---|
| 544 | ztotchl = ( tr(ji,jj,1,jpnch,Kbb) + tr(ji,jj,1,jpdch,Kbb) ) * 1E6 |
|---|
| 545 | depmig(ji,jj) = 398. - 0.56 * oxymoy(ji,jj) -115. * log10(ztotchl) + 0.36 * hmld(ji,jj) -2.4 * tempmoy(ji,jj) |
|---|
| 546 | ENDIF |
|---|
| 547 | END_2D |
|---|
| 548 | ! |
|---|
| 549 | ! Computation of the corresponding jk indice |
|---|
| 550 | ! ------------------------------------------ |
|---|
| 551 | DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpkm1) |
|---|
| 552 | IF( depmig(ji,jj) >= gdepw(ji,jj,jk,Kmm) .AND. depmig(ji,jj) < gdepw(ji,jj,jk+1,Kmm) ) THEN |
|---|
| 553 | kmig(ji,jj) = jk |
|---|
| 554 | ENDIF |
|---|
| 555 | END_3D |
|---|
| 556 | ! |
|---|
| 557 | ! Correction of the migration depth and indice based on O2 levels |
|---|
| 558 | ! If O2 is too low, imposing a migration depth at this low O2 levels |
|---|
| 559 | ! would lead to negative O2 concentrations (respiration while O2 is close |
|---|
| 560 | ! to 0. Thus, to avoid that problem, the migration depth is adjusted so |
|---|
| 561 | ! that it falls above the OMZ |
|---|
| 562 | ! ----------------------------------------------------------------------- |
|---|
| 563 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
|---|
| 564 | IF( tr(ji,jj,kmig(ji,jj),jpoxy,Kbb) < 5E-6 ) THEN |
|---|
| 565 | DO jk = kmig(ji,jj),1,-1 |
|---|
| 566 | IF( tr(ji,jj,jk,jpoxy,Kbb) >= 5E-6 .AND. tr(ji,jj,jk+1,jpoxy,Kbb) < 5E-6) THEN |
|---|
| 567 | kmig(ji,jj) = jk |
|---|
| 568 | depmig(ji,jj) = gdept(ji,jj,jk,Kmm) |
|---|
| 569 | ENDIF |
|---|
| 570 | END DO |
|---|
| 571 | ENDIF |
|---|
| 572 | END_2D |
|---|
| 573 | ! |
|---|
| 574 | IF( ln_timing ) CALL timing_stop('p4z_meso_depmig') |
|---|
| 575 | ! |
|---|
| 576 | END SUBROUTINE p4z_meso_depmig |
|---|
| 577 | |
|---|
| 578 | INTEGER FUNCTION p4z_meso_alloc() |
|---|
| 579 | !!---------------------------------------------------------------------- |
|---|
| 580 | !! *** ROUTINE p4z_meso_alloc *** |
|---|
| 581 | !!---------------------------------------------------------------------- |
|---|
| 582 | ! |
|---|
| 583 | ALLOCATE( depmig(jpi,jpj), kmig(jpi,jpj), STAT= p4z_meso_alloc ) |
|---|
| 584 | ! |
|---|
| 585 | IF( p4z_meso_alloc /= 0 ) CALL ctl_stop( 'STOP', 'p4z_meso_alloc : failed to allocate arrays.' ) |
|---|
| 586 | ! |
|---|
| 587 | END FUNCTION p4z_meso_alloc |
|---|
| 588 | |
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| 589 | !!====================================================================== |
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| 590 | END MODULE p4zmeso |
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