MODULE p5zmeso !!====================================================================== !! *** MODULE p5zmeso *** !! TOP : PISCES Compute the sources/sinks for mesozooplankton !!====================================================================== !! History : 1.0 ! 2002 (O. Aumont) Original code !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Quota model for iron !! 3.6 ! 2015-05 (O. Aumont) PISCES quota !!---------------------------------------------------------------------- !! p5z_meso : Compute the sources/sinks for mesozooplankton !! p5z_meso_init : Initialization of the parameters for mesozooplankton !!---------------------------------------------------------------------- USE oce_trc ! shared variables between ocean and passive tracers USE trc ! passive tracers common variables USE sms_pisces ! PISCES Source Minus Sink variables USE prtctl_trc ! print control for debugging USE iom ! I/O manager IMPLICIT NONE PRIVATE PUBLIC p5z_meso ! called in p5zbio.F90 PUBLIC p5z_meso_init ! called in trcsms_pisces.F90 !! * Shared module variables REAL(wp), PUBLIC :: part2 !: part of calcite not dissolved in mesozoo guts REAL(wp), PUBLIC :: xpref2c !: mesozoo preference for POC REAL(wp), PUBLIC :: xpref2n !: mesozoo preference for nanophyto REAL(wp), PUBLIC :: xpref2z !: mesozoo preference for zooplankton REAL(wp), PUBLIC :: xpref2d !: mesozoo preference for Diatoms REAL(wp), PUBLIC :: xpref2m !: mesozoo preference for mesozoo REAL(wp), PUBLIC :: xthresh2zoo !: zoo feeding threshold for mesozooplankton REAL(wp), PUBLIC :: xthresh2dia !: diatoms feeding threshold for mesozooplankton REAL(wp), PUBLIC :: xthresh2phy !: nanophyto feeding threshold for mesozooplankton REAL(wp), PUBLIC :: xthresh2poc !: poc feeding threshold for mesozooplankton REAL(wp), PUBLIC :: xthresh2mes !: mesozoo feeding threshold for mesozooplankton REAL(wp), PUBLIC :: xthresh2 !: feeding threshold for mesozooplankton REAL(wp), PUBLIC :: resrat2 !: exsudation rate of mesozooplankton REAL(wp), PUBLIC :: mzrat2 !: microzooplankton mortality rate REAL(wp), PUBLIC :: grazrat2 !: maximal mesozoo grazing rate REAL(wp), PUBLIC :: xkgraz2 !: Half-saturation constant of assimilation REAL(wp), PUBLIC :: unass2c !: Non-assimilated fraction of food REAL(wp), PUBLIC :: unass2n !: Non-assimilated fraction of food REAL(wp), PUBLIC :: unass2p !: Non-assimilated fraction of food REAL(wp), PUBLIC :: epsher2 !: Growth efficiency of mesozoo REAL(wp), PUBLIC :: epsher2min !: Minimum growth efficiency of mesozoo REAL(wp), PUBLIC :: ssigma2 !: Fraction excreted as semi-labile DOM REAL(wp), PUBLIC :: srespir2 !: Active respiration REAL(wp), PUBLIC :: grazflux !: mesozoo flux feeding rate LOGICAL, PUBLIC :: bmetexc2 !: Use of excess carbon for respiration !!---------------------------------------------------------------------- !! NEMO/TOP 4.0 , NEMO Consortium (2018) !! $Id$ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE p5z_meso( kt, knt, Kbb, Krhs ) !!--------------------------------------------------------------------- !! *** ROUTINE p5z_meso *** !! !! ** Purpose : Compute the sources/sinks for mesozooplankton !! !! ** Method : - ??? !!--------------------------------------------------------------------- INTEGER, INTENT(in) :: kt, knt ! ocean time step INTEGER, INTENT(in) :: Kbb, Krhs ! time level indices INTEGER :: ji, jj, jk REAL(wp) :: zcompadi, zcompaph, zcompapoc, zcompaz, zcompam, zcompames REAL(wp) :: zgraze2, zdenom, zfact, zfood, zfoodlim, zproport REAL(wp) :: zmortzgoc, zfracc, zfracn, zfracp, zfracfe, zratio, zratio2 REAL(wp) :: zepsherf, zepshert, zepsherv, zrespirc, zrespirn, zrespirp, zbasresb, zbasresi REAL(wp) :: zgraztotc, zgraztotn, zgraztotp, zgraztotf, zbasresn, zbasresp, zbasresf REAL(wp) :: zgradoc, zgradon, zgradop, zgratmp, zgradoct, zgradont, zgrareft, zgradopt REAL(wp) :: zgrapoc, zgrapon, zgrapop, zgrapof, zprcaca, zmortz REAL(wp) :: zexcess, zgrarem, zgraren, zgrarep, zgraref REAL(wp) :: zbeta, zrespz, ztortz, zgrasratp, zgrasratn, zgrasratf REAL(wp) :: ztmp1, ztmp2, ztmp3, ztmp4, ztmp5, ztmptot REAL(wp) :: zgrazdc, zgrazz, zgrazm, zgrazpof, zgrazcal, zfracal REAL(wp) :: zgraznc, zgrazpoc, zgrazpon, zgrazpop, zgraznf, zgrazdf REAL(wp) :: zgraznp, zgraznn, zgrazdn, zgrazdp REAL(wp) :: zgrazfffp, zgrazfffg, zgrazffep, zgrazffeg REAL(wp) :: zgrazffnp, zgrazffng, zgrazffpp, zgrazffpg CHARACTER (len=25) :: charout REAL(wp) :: zrfact2, zmetexcess REAL(wp), DIMENSION(jpi,jpj,jpk) :: zgrazing, zfezoo2, zz2ligprod !!--------------------------------------------------------------------- ! IF( ln_timing ) CALL timing_start('p5z_meso') ! zmetexcess = 0.0 IF ( bmetexc2 ) zmetexcess = 1.0 DO jk = 1, jpkm1 DO jj = 1, jpj DO ji = 1, jpi zcompam = MAX( ( tr(ji,jj,jk,jpmes,Kbb) - 1.e-9 ), 0.e0 ) zfact = xstep * tgfunc2(ji,jj,jk) * zcompam ! Michaelis-Menten mortality rates of mesozooplankton ! --------------------------------------------------- zrespz = resrat2 * zfact * ( tr(ji,jj,jk,jpmes,Kbb) / ( xkmort + tr(ji,jj,jk,jpmes,Kbb) ) & & + 3. * nitrfac(ji,jj,jk) ) ! Zooplankton mortality. A square function has been selected with ! no real reason except that it seems to be more stable and may mimic predation ! --------------------------------------------------------------- ztortz = mzrat2 * 1.e6 * zfact * tr(ji,jj,jk,jpmes,Kbb) * (1. - nitrfac(ji,jj,jk)) ! Computation of the abundance of the preys ! A threshold can be specified in the namelist ! -------------------------------------------- zcompadi = MAX( ( tr(ji,jj,jk,jpdia,Kbb) - xthresh2dia ), 0.e0 ) zcompaz = MAX( ( tr(ji,jj,jk,jpzoo,Kbb) - xthresh2zoo ), 0.e0 ) zcompaph = MAX( ( tr(ji,jj,jk,jpphy,Kbb) - xthresh2phy ), 0.e0 ) zcompapoc = MAX( ( tr(ji,jj,jk,jppoc,Kbb) - xthresh2poc ), 0.e0 ) zcompames = MAX( ( tr(ji,jj,jk,jpmes,Kbb) - xthresh2mes ), 0.e0 ) ! Mesozooplankton grazing ! ------------------------ zfood = xpref2d * zcompadi + xpref2z * zcompaz + xpref2n * zcompaph + xpref2c * zcompapoc & & + xpref2m * zcompames zfoodlim = MAX( 0., zfood - MIN( 0.5 * zfood, xthresh2 ) ) zdenom = zfoodlim / ( xkgraz2 + zfoodlim ) zgraze2 = grazrat2 * xstep * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jpmes,Kbb) * (1. - nitrfac(ji,jj,jk)) ! An active switching parameterization is used here. ! We don't use the KTW parameterization proposed by ! Vallina et al. because it tends to produce to steady biomass ! composition and the variance of Chl is too low as it grazes ! too strongly on winning organisms. Thus, instead of a square ! a 1.5 power value is used which decreases the pressure on the ! most abundant species ! ------------------------------------------------------------ ztmp1 = xpref2n * zcompaph**1.5 ztmp2 = xpref2m * zcompames**1.5 ztmp3 = xpref2c * zcompapoc**1.5 ztmp4 = xpref2d * zcompadi**1.5 ztmp5 = xpref2z * zcompaz**1.5 ztmptot = ztmp1 + ztmp2 + ztmp3 + ztmp4 + ztmp5 + rtrn ztmp1 = ztmp1 / ztmptot ztmp2 = ztmp2 / ztmptot ztmp3 = ztmp3 / ztmptot ztmp4 = ztmp4 / ztmptot ztmp5 = ztmp5 / ztmptot ! Mesozooplankton regular grazing on the different preys ! ------------------------------------------------------ zgrazdc = zgraze2 * ztmp4 * zdenom zgrazdn = zgrazdc * tr(ji,jj,jk,jpndi,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn) zgrazdp = zgrazdc * tr(ji,jj,jk,jppdi,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn) zgrazdf = zgrazdc * tr(ji,jj,jk,jpdfe,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn) zgrazz = zgraze2 * ztmp5 * zdenom zgrazm = zgraze2 * ztmp2 * zdenom zgraznc = zgraze2 * ztmp1 * zdenom zgraznn = zgraznc * tr(ji,jj,jk,jpnph,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) + rtrn) zgraznp = zgraznc * tr(ji,jj,jk,jppph,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) + rtrn) zgraznf = zgraznc * tr(ji,jj,jk,jpnfe,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) + rtrn) zgrazpoc = zgraze2 * ztmp3 * zdenom zgrazpon = zgrazpoc * tr(ji,jj,jk,jppon,Kbb) / ( tr(ji,jj,jk,jppoc,Kbb) + rtrn) zgrazpop = zgrazpoc * tr(ji,jj,jk,jppop,Kbb) / ( tr(ji,jj,jk,jppoc,Kbb) + rtrn) zgrazpof = zgrazpoc * tr(ji,jj,jk,jpsfe,Kbb) / ( tr(ji,jj,jk,jppoc,Kbb) + rtrn) ! Mesozooplankton flux feeding on GOC ! ---------------------------------- zgrazffeg = grazflux * xstep * wsbio4(ji,jj,jk) & & * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jpgoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & & * (1. - nitrfac(ji,jj,jk)) zgrazfffg = zgrazffeg * tr(ji,jj,jk,jpbfe,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zgrazffng = zgrazffeg * tr(ji,jj,jk,jpgon,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zgrazffpg = zgrazffeg * tr(ji,jj,jk,jpgop,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zgrazffep = grazflux * xstep * wsbio3(ji,jj,jk) & & * tgfunc2(ji,jj,jk) * tr(ji,jj,jk,jppoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & & * (1. - nitrfac(ji,jj,jk)) zgrazfffp = zgrazffep * tr(ji,jj,jk,jpsfe,Kbb) / (tr(ji,jj,jk,jppoc,Kbb) + rtrn) zgrazffnp = zgrazffep * tr(ji,jj,jk,jppon,Kbb) / (tr(ji,jj,jk,jppoc,Kbb) + rtrn) zgrazffpp = zgrazffep * tr(ji,jj,jk,jppop,Kbb) / (tr(ji,jj,jk,jppoc,Kbb) + rtrn) ! zgraztotc = zgrazdc + zgrazz + zgraznc + zgrazm + zgrazpoc + zgrazffep + zgrazffeg ! Compute the proportion of filter feeders ! ---------------------------------------- zproport = (zgrazffep + zgrazffeg)/(rtrn + zgraztotc) ! Compute fractionation of aggregates. It is assumed that ! diatoms based aggregates are more prone to fractionation ! since they are more porous (marine snow instead of fecal pellets) ! ---------------------------------------------------------------- zratio = tr(ji,jj,jk,jpgsi,Kbb) / ( tr(ji,jj,jk,jpgoc,Kbb) + rtrn ) zratio2 = zratio * zratio zfracc = zproport * grazflux * xstep * wsbio4(ji,jj,jk) & & * tr(ji,jj,jk,jpgoc,Kbb) * tr(ji,jj,jk,jpmes,Kbb) & & * ( 0.2 + 3.8 * zratio2 / ( 1.**2 + zratio2 ) ) zfracfe = zfracc * tr(ji,jj,jk,jpbfe,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zfracn = zfracc * tr(ji,jj,jk,jpgon,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zfracp = zfracc * tr(ji,jj,jk,jpgop,Kbb) / (tr(ji,jj,jk,jpgoc,Kbb) + rtrn) zgrazffep = zproport * zgrazffep ; zgrazffeg = zproport * zgrazffeg zgrazfffp = zproport * zgrazfffp ; zgrazfffg = zproport * zgrazfffg zgrazffnp = zproport * zgrazffnp ; zgrazffng = zproport * zgrazffng zgrazffpp = zproport * zgrazffpp ; zgrazffpg = zproport * zgrazffpg zgraztotc = zgrazdc + zgrazz + zgraznc + zgrazm + zgrazpoc + zgrazffep + zgrazffeg zgraztotf = zgrazdf + zgraznf + ( zgrazz + zgrazm ) * ferat3 + zgrazpof & & + zgrazfffp + zgrazfffg zgraztotn = zgrazdn + (zgrazm + zgrazz) * no3rat3 + zgraznn + zgrazpon & & + zgrazffnp + zgrazffng zgraztotp = zgrazdp + (zgrazz + zgrazm) * po4rat3 + zgraznp + zgrazpop & & + zgrazffpp + zgrazffpg ! Total grazing ( grazing by microzoo is already computed in p5zmicro ) zgrazing(ji,jj,jk) = zgraztotc ! Stoichiometruc ratios of the food ingested by zooplanton ! -------------------------------------------------------- zgrasratf = (zgraztotf + rtrn) / ( zgraztotc + rtrn ) zgrasratn = (zgraztotn + rtrn) / ( zgraztotc + rtrn ) zgrasratp = (zgraztotp + rtrn) / ( zgraztotc + rtrn ) ! Growth efficiency is made a function of the quality ! and the quantity of the preys ! --------------------------------------------------- zepshert = MIN( 1., zgrasratn/ no3rat3, zgrasratp/ po4rat3, zgrasratf / ferat3) zbeta = MAX(0., (epsher2 - epsher2min) ) zepsherf = epsher2min + zbeta / ( 1.0 + 0.04E6 * 12. * zfood * zbeta ) zepsherv = zepsherf * zepshert ! Respiration of mesozooplankton ! Excess carbon in the food is used preferentially ! ---------------- ------------------------------ zexcess = zgraztotc * zepsherf * (1.0 - zepshert) * zmetexcess zbasresb = MAX(0., zrespz - zexcess) zbasresi = zexcess + MIN(0., zrespz - zexcess) zrespirc = srespir2 * zepsherv * zgraztotc + zbasresb ! When excess carbon is used, the other elements in excess ! are also used proportionally to their abundance ! -------------------------------------------------------- zexcess = ( zgrasratn/ no3rat3 - zepshert ) / ( 1.0 - zepshert + rtrn) zbasresn = zbasresi * zexcess * zgrasratn zexcess = ( zgrasratp/ po4rat3 - zepshert ) / ( 1.0 - zepshert + rtrn) zbasresp = zbasresi * zexcess * zgrasratp zexcess = ( zgrasratf/ ferat3 - zepshert ) / ( 1.0 - zepshert + rtrn) zbasresf = zbasresi * zexcess * zgrasratf ! Voiding of the excessive elements as organic matter ! -------------------------------------------------------- zgradoct = (1. - unass2c - zepsherv) * zgraztotc - zbasresi zgradont = (1. - unass2n) * zgraztotn - zepsherv * no3rat3 * zgraztotc - zbasresn zgradopt = (1. - unass2p) * zgraztotp - zepsherv * po4rat3 * zgraztotc - zbasresp zgrareft = (1. - unass2c) * zgraztotf - zepsherv * ferat3 * zgraztotc - zbasresf ztmp1 = ( 1. - epsher2 - unass2c ) /( 1. - 0.8 * epsher2 ) * ztortz zgradoc = (zgradoct + ztmp1) * ssigma2 zgradon = (zgradont + no3rat3 * ztmp1) * ssigma2 zgradop = (zgradopt + po4rat3 * ztmp1) * ssigma2 zgratmp = 0.2 * epsher2 /( 1. - 0.8 * epsher2 ) * ztortz ! Since only semilabile DOM is represented in PISCES ! part of DOM is in fact labile and is then released ! as dissolved inorganic compounds (ssigma2) ! -------------------------------------------------- zgrarem = zgratmp + ( zgradoct + ztmp1 ) * (1.0 - ssigma2) zgraren = no3rat3 * zgratmp + ( zgradont + no3rat3 * ztmp1 ) * (1.0 - ssigma2) zgrarep = po4rat3 * zgratmp + ( zgradopt + po4rat3 * ztmp1 ) * (1.0 - ssigma2) zgraref = zgrareft + ferat3 * ( ztmp1 + zgratmp ) ! Defecation as a result of non assimilated products ! -------------------------------------------------- zgrapoc = zgraztotc * unass2c + unass2c / ( 1. - 0.8 * epsher2 ) * ztortz zgrapon = zgraztotn * unass2n + no3rat3 * unass2n / ( 1. - 0.8 * epsher2 ) * ztortz zgrapop = zgraztotp * unass2p + po4rat3 * unass2p / ( 1. - 0.8 * epsher2 ) * ztortz zgrapof = zgraztotf * unass2c + ferat3 * unass2c / ( 1. - 0.8 * epsher2 ) * ztortz ! Addition of respiration to the release of inorganic nutrients ! ------------------------------------------------------------- zgrarem = zgrarem + zbasresi + zrespirc zgraren = zgraren + zbasresn + zrespirc * no3rat3 zgrarep = zgrarep + zbasresp + zrespirc * po4rat3 zgraref = zgraref + zbasresf + zrespirc * ferat3 ! Update the arrays TRA which contain the biological sources and ! sinks ! -------------------------------------------------------------- tr(ji,jj,jk,jppo4,Krhs) = tr(ji,jj,jk,jppo4,Krhs) + zgrarep tr(ji,jj,jk,jpnh4,Krhs) = tr(ji,jj,jk,jpnh4,Krhs) + zgraren tr(ji,jj,jk,jpdoc,Krhs) = tr(ji,jj,jk,jpdoc,Krhs) + zgradoc ! IF( ln_ligand ) THEN tr(ji,jj,jk,jplgw,Krhs) = tr(ji,jj,jk,jplgw,Krhs) + zgradoc * ldocz zz2ligprod(ji,jj,jk) = zgradoc * ldocz ENDIF ! tr(ji,jj,jk,jpdon,Krhs) = tr(ji,jj,jk,jpdon,Krhs) + zgradon tr(ji,jj,jk,jpdop,Krhs) = tr(ji,jj,jk,jpdop,Krhs) + zgradop tr(ji,jj,jk,jpoxy,Krhs) = tr(ji,jj,jk,jpoxy,Krhs) - o2ut * zgrarem tr(ji,jj,jk,jpfer,Krhs) = tr(ji,jj,jk,jpfer,Krhs) + zgraref zfezoo2(ji,jj,jk) = zgraref tr(ji,jj,jk,jpdic,Krhs) = tr(ji,jj,jk,jpdic,Krhs) + zgrarem tr(ji,jj,jk,jptal,Krhs) = tr(ji,jj,jk,jptal,Krhs) + rno3 * zgraren tr(ji,jj,jk,jpmes,Krhs) = tr(ji,jj,jk,jpmes,Krhs) + zepsherv * zgraztotc - zrespirc & & - ztortz - zgrazm tr(ji,jj,jk,jpdia,Krhs) = tr(ji,jj,jk,jpdia,Krhs) - zgrazdc tr(ji,jj,jk,jpndi,Krhs) = tr(ji,jj,jk,jpndi,Krhs) - zgrazdn tr(ji,jj,jk,jppdi,Krhs) = tr(ji,jj,jk,jppdi,Krhs) - zgrazdp tr(ji,jj,jk,jpdfe,Krhs) = tr(ji,jj,jk,jpdfe,Krhs) - zgrazdf tr(ji,jj,jk,jpzoo,Krhs) = tr(ji,jj,jk,jpzoo,Krhs) - zgrazz tr(ji,jj,jk,jpphy,Krhs) = tr(ji,jj,jk,jpphy,Krhs) - zgraznc tr(ji,jj,jk,jpnph,Krhs) = tr(ji,jj,jk,jpnph,Krhs) - zgraznn tr(ji,jj,jk,jppph,Krhs) = tr(ji,jj,jk,jppph,Krhs) - zgraznp tr(ji,jj,jk,jpnfe,Krhs) = tr(ji,jj,jk,jpnfe,Krhs) - zgraznf 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 ) 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 ) 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 ) tr(ji,jj,jk,jpgsi,Krhs) = tr(ji,jj,jk,jpgsi,Krhs) + zgrazdc * tr(ji,jj,jk,jpdsi,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn ) tr(ji,jj,jk,jppoc,Krhs) = tr(ji,jj,jk,jppoc,Krhs) - zgrazpoc - zgrazffep + zfracc prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + zfracc conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zgrazpoc - zgrazffep tr(ji,jj,jk,jppon,Krhs) = tr(ji,jj,jk,jppon,Krhs) - zgrazpon - zgrazffnp + zfracn tr(ji,jj,jk,jppop,Krhs) = tr(ji,jj,jk,jppop,Krhs) - zgrazpop - zgrazffpp + zfracp tr(ji,jj,jk,jpgoc,Krhs) = tr(ji,jj,jk,jpgoc,Krhs) - zgrazffeg + zgrapoc - zfracc prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zgrapoc consgoc(ji,jj,jk) = consgoc(ji,jj,jk) - zgrazffeg - zfracc tr(ji,jj,jk,jpgon,Krhs) = tr(ji,jj,jk,jpgon,Krhs) - zgrazffng + zgrapon - zfracn tr(ji,jj,jk,jpgop,Krhs) = tr(ji,jj,jk,jpgop,Krhs) - zgrazffpg + zgrapop - zfracp tr(ji,jj,jk,jpsfe,Krhs) = tr(ji,jj,jk,jpsfe,Krhs) - zgrazpof - zgrazfffp + zfracfe tr(ji,jj,jk,jpbfe,Krhs) = tr(ji,jj,jk,jpbfe,Krhs) - zgrazfffg + zgrapof - zfracfe zfracal = tr(ji,jj,jk,jpcal,Kbb) / ( tr(ji,jj,jk,jpgoc,Kbb) + rtrn ) zgrazcal = zgrazffeg * (1. - part2) * zfracal ! calcite production ! ------------------ zprcaca = xfracal(ji,jj,jk) * zgraznc prodcal(ji,jj,jk) = prodcal(ji,jj,jk) + zprcaca ! prodcal=prodcal(nanophy)+prodcal(microzoo)+prodcal(mesozoo) zprcaca = part2 * zprcaca tr(ji,jj,jk,jpdic,Krhs) = tr(ji,jj,jk,jpdic,Krhs) + zgrazcal - zprcaca tr(ji,jj,jk,jptal,Krhs) = tr(ji,jj,jk,jptal,Krhs) + 2. * ( zgrazcal - zprcaca ) tr(ji,jj,jk,jpcal,Krhs) = tr(ji,jj,jk,jpcal,Krhs) - zgrazcal + zprcaca END DO END DO END DO ! IF( lk_iomput .AND. knt == nrdttrc ) THEN CALL iom_put( "PCAL" , prodcal(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ) ! Calcite production IF( iom_use("GRAZ2") ) THEN ! Total grazing of phyto by zooplankton zgrazing(:,:,jpk) = 0._wp ; CALL iom_put( "GRAZ2" , zgrazing(:,:,:) * 1.e+3 * rfact2r * tmask(:,:,:) ) ENDIF IF( iom_use("FEZOO2") ) THEN zfezoo2 (:,:,jpk) = 0._wp ; CALL iom_put( "FEZOO2", zfezoo2(:,:,:) * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) ) ENDIF IF( ln_ligand ) THEN zz2ligprod(:,:,jpk) = 0._wp ; CALL iom_put( "LPRODZ2", zz2ligprod(:,:,:) * 1e9 * 1.e+3 * rfact2r * tmask(:,:,:) ) ENDIF ENDIF ! IF(sn_cfctl%l_prttrc) THEN ! print mean trends (used for debugging) WRITE(charout, FMT="('meso')") CALL prt_ctl_trc_info(charout) CALL prt_ctl_trc(tab4d=tr(:,:,:,:,Krhs), mask=tmask, clinfo=ctrcnm) ENDIF ! IF( ln_timing ) CALL timing_stop('p5z_meso') ! END SUBROUTINE p5z_meso SUBROUTINE p5z_meso_init !!---------------------------------------------------------------------- !! *** ROUTINE p5z_meso_init *** !! !! ** Purpose : Initialization of mesozooplankton parameters !! !! ** Method : Read the nampismes namelist and check the parameters !! called at the first timestep (nittrc000) !! !! ** input : Namelist nampismes !! !!---------------------------------------------------------------------- INTEGER :: ios ! Local integer output status for namelist read !! NAMELIST/namp5zmes/part2, bmetexc2, grazrat2, resrat2, mzrat2, xpref2c, xpref2n, xpref2z, & & xpref2m, xpref2d, xthresh2dia, xthresh2phy, xthresh2zoo, xthresh2poc, & & xthresh2mes, xthresh2, xkgraz2, epsher2, epsher2min, ssigma2, unass2c, & & unass2n, unass2p, srespir2, grazflux !!---------------------------------------------------------------------- ! READ ( numnatp_ref, namp5zmes, IOSTAT = ios, ERR = 901) 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampismes in reference namelist' ) ! READ ( numnatp_cfg, namp5zmes, IOSTAT = ios, ERR = 902 ) 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'nampismes in configuration namelist' ) IF(lwm) WRITE ( numonp, namp5zmes ) ! IF(lwp) THEN ! control print WRITE(numout,*) ' ' WRITE(numout,*) ' Namelist parameters for mesozooplankton, namp5zmes' WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' WRITE(numout,*) ' part of calcite not dissolved in mesozoo guts part2 = ', part2 WRITE(numout,*) ' mesozoo preference for nano. xpref2n = ', xpref2n WRITE(numout,*) ' mesozoo preference for diatoms xpref2d = ', xpref2d WRITE(numout,*) ' mesozoo preference for zoo xpref2z = ', xpref2z WRITE(numout,*) ' mesozoo preference for mesozoo xpref2m = ', xpref2m WRITE(numout,*) ' mesozoo preference for poc xpref2c = ', xpref2c WRITE(numout,*) ' microzoo feeding threshold for mesozoo xthresh2zoo = ', xthresh2zoo WRITE(numout,*) ' diatoms feeding threshold for mesozoo xthresh2dia = ', xthresh2dia WRITE(numout,*) ' nanophyto feeding threshold for mesozoo xthresh2phy = ', xthresh2phy WRITE(numout,*) ' poc feeding threshold for mesozoo xthresh2poc = ', xthresh2poc WRITE(numout,*) ' mesozoo feeding threshold for mesozoo xthresh2mes = ', xthresh2mes WRITE(numout,*) ' feeding threshold for mesozooplankton xthresh2 = ', xthresh2 WRITE(numout,*) ' exsudation rate of mesozooplankton resrat2 = ', resrat2 WRITE(numout,*) ' mesozooplankton mortality rate mzrat2 = ', mzrat2 WRITE(numout,*) ' maximal mesozoo grazing rate grazrat2 = ', grazrat2 WRITE(numout,*) ' mesozoo flux feeding rate grazflux = ', grazflux WRITE(numout,*) ' C egested fraction of food by mesozoo unass2c = ', unass2c WRITE(numout,*) ' N egested fraction of food by mesozoo unass2n = ', unass2n WRITE(numout,*) ' P egested fraction of food by mesozoo unass2p = ', unass2p WRITE(numout,*) ' Efficicency of Mesozoo growth epsher2 = ', epsher2 WRITE(numout,*) ' Minimum Efficiency of Mesozoo growth epsher2min =', epsher2min WRITE(numout,*) ' Fraction excreted as semi-labile DOM ssigma2 = ', ssigma2 WRITE(numout,*) ' Active respiration srespir2 = ', srespir2 WRITE(numout,*) ' half sturation constant for grazing 2 xkgraz2 = ', xkgraz2 WRITE(numout,*) ' Use excess carbon for respiration bmetexc2 = ', bmetexc2 ENDIF ! END SUBROUTINE p5z_meso_init !!====================================================================== END MODULE p5zmeso