MODULE p4zprod !!====================================================================== !! *** MODULE p4zprod *** !! TOP : Growth Rate of the two phytoplanktons groups !!====================================================================== !! History : 1.0 ! 2004 (O. Aumont) Original code !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 !! 3.4 ! 2011-05 (O. Aumont, C. Ethe) New parameterization of light limitation !!---------------------------------------------------------------------- !! p4z_prod : Compute the growth Rate of the two phytoplanktons groups !! p4z_prod_init : Initialization of the parameters for growth !! p4z_prod_alloc : Allocate variables for growth !!---------------------------------------------------------------------- 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 p4zlim ! Co-limitations of differents nutrients USE prtctl_trc ! print control for debugging USE iom ! I/O manager IMPLICIT NONE PRIVATE PUBLIC p4z_prod ! called in p4zbio.F90 PUBLIC p4z_prod_init ! called in trcsms_pisces.F90 PUBLIC p4z_prod_alloc REAL(wp), PUBLIC :: pislopen !: REAL(wp), PUBLIC :: pisloped !: REAL(wp), PUBLIC :: xadap !: REAL(wp), PUBLIC :: excretn !: REAL(wp), PUBLIC :: excretd !: REAL(wp), PUBLIC :: bresp !: REAL(wp), PUBLIC :: chlcnm !: REAL(wp), PUBLIC :: chlcdm !: REAL(wp), PUBLIC :: chlcmin !: REAL(wp), PUBLIC :: fecnm !: REAL(wp), PUBLIC :: fecdm !: REAL(wp), PUBLIC :: grosip !: REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: quotan !: proxy of N quota in Nanophyto REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: quotad !: proxy of N quota in diatomee REAL(wp) :: r1_rday ! 1 / rday REAL(wp) :: texcretn ! 1 - excretn REAL(wp) :: texcretd ! 1 - excretd !! * Substitutions # include "do_loop_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/TOP 4.0 , NEMO Consortium (2018) !! $Id$ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE p4z_prod( kt , knt, Kbb, Kmm, Krhs ) !!--------------------------------------------------------------------- !! *** ROUTINE p4z_prod *** !! !! ** Purpose : Compute the phytoplankton production depending on !! light, temperature and nutrient availability !! !! ** Method : - ??? !!--------------------------------------------------------------------- INTEGER, INTENT(in) :: kt, knt ! INTEGER, INTENT(in) :: Kbb, Kmm, Krhs ! time level indices ! INTEGER :: ji, jj, jk REAL(wp) :: zsilfac, znanotot, zdiattot, zconctemp, zconctemp2 REAL(wp) :: zratio, zmax, zsilim, ztn, zadap, zlim, zsilfac2, zsiborn REAL(wp) :: zprod, zproreg, zproreg2, zprochln, zprochld REAL(wp) :: zmaxday, zdocprod, zpislopen, zpisloped REAL(wp) :: zmxltst, zmxlday REAL(wp) :: zrum, zcodel, zargu, zval, zfeup, chlcnm_n, chlcdm_n REAL(wp) :: zfact CHARACTER (len=25) :: charout REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zw2d REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: zw3d REAL(wp), DIMENSION(jpi,jpj ) :: zstrn, zmixnano, zmixdiat REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprmaxn,zprmaxd REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpislopeadn, zpislopeadd, zysopt REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprdia, zprbio, zprdch, zprnch REAL(wp), DIMENSION(jpi,jpj,jpk) :: zprorcan, zprorcad, zprofed, zprofen REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpronewn, zpronewd REAL(wp), DIMENSION(jpi,jpj,jpk) :: zmxl_fac, zmxl_chl REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpligprod1, zpligprod2 !!--------------------------------------------------------------------- ! IF( ln_timing ) CALL timing_start('p4z_prod') ! ! Allocate temporary workspace ! zprorcan (:,:,:) = 0._wp ; zprorcad (:,:,:) = 0._wp ; zprofed (:,:,:) = 0._wp zprofen (:,:,:) = 0._wp ; zysopt (:,:,:) = 0._wp zpronewn (:,:,:) = 0._wp ; zpronewd (:,:,:) = 0._wp ; zprdia (:,:,:) = 0._wp zprbio (:,:,:) = 0._wp ; zprdch (:,:,:) = 0._wp ; zprnch (:,:,:) = 0._wp zmxl_fac (:,:,:) = 0._wp ; zmxl_chl (:,:,:) = 0._wp zpligprod1(:,:,:) = 0._wp ; zpligprod2(:,:,:) = 0._wp ! Computation of the optimal production zprmaxn(:,:,:) = 0.8_wp * r1_rday * tgfunc(:,:,:) zprmaxd(:,:,:) = zprmaxn(:,:,:) ! compute the day length depending on latitude and the day zrum = REAL( nday_year - 80, wp ) / REAL( nyear_len(1), wp ) zcodel = ASIN( SIN( zrum * rpi * 2._wp ) * SIN( rad * 23.5_wp ) ) ! day length in hours zstrn(:,:) = 0. DO_2D_11_11 zargu = TAN( zcodel ) * TAN( gphit(ji,jj) * rad ) zargu = MAX( -1., MIN( 1., zargu ) ) zstrn(ji,jj) = MAX( 0.0, 24. - 2. * ACOS( zargu ) / rad / 15. ) END_2D ! Impact of the day duration and light intermittency on phytoplankton growth DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN zval = MAX( 1., zstrn(ji,jj) ) IF( gdept(ji,jj,jk,Kmm) <= hmld(ji,jj) ) THEN zval = zval * MIN(1., heup_01(ji,jj) / ( hmld(ji,jj) + rtrn )) ENDIF zmxl_chl(ji,jj,jk) = zval / 24. zmxl_fac(ji,jj,jk) = 1.5 * zval / ( 12. + zval ) ENDIF END_3D zprbio(:,:,:) = zprmaxn(:,:,:) * zmxl_fac(:,:,:) zprdia(:,:,:) = zprmaxd(:,:,:) * zmxl_fac(:,:,:) ! Maximum light intensity WHERE( zstrn(:,:) < 1.e0 ) zstrn(:,:) = 24. ! Computation of the P-I slope for nanos and diatoms DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN ztn = MAX( 0., ts(ji,jj,jk,jp_tem,Kmm) - 15. ) zadap = xadap * ztn / ( 2.+ ztn ) zconctemp = MAX( 0.e0 , tr(ji,jj,jk,jpdia,Kbb) - xsizedia ) zconctemp2 = tr(ji,jj,jk,jpdia,Kbb) - zconctemp ! zpislopeadn(ji,jj,jk) = pislopen * ( 1.+ zadap * EXP( -0.25 * enano(ji,jj,jk) ) ) & & * tr(ji,jj,jk,jpnch,Kbb) /( tr(ji,jj,jk,jpphy,Kbb) * 12. + rtrn) ! zpislopeadd(ji,jj,jk) = (pislopen * zconctemp2 + pisloped * zconctemp) / ( tr(ji,jj,jk,jpdia,Kbb) + rtrn ) & & * tr(ji,jj,jk,jpdch,Kbb) /( tr(ji,jj,jk,jpdia,Kbb) * 12. + rtrn) ENDIF END_3D DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN ! Computation of production function for Carbon ! --------------------------------------------- zpislopen = zpislopeadn(ji,jj,jk) / ( ( r1_rday + bresp * r1_rday ) & & * zmxl_fac(ji,jj,jk) * rday + rtrn) zpisloped = zpislopeadd(ji,jj,jk) / ( ( r1_rday + bresp * r1_rday ) & & * zmxl_fac(ji,jj,jk) * rday + rtrn) zprbio(ji,jj,jk) = zprbio(ji,jj,jk) * ( 1.- EXP( -zpislopen * enano(ji,jj,jk) ) ) zprdia(ji,jj,jk) = zprdia(ji,jj,jk) * ( 1.- EXP( -zpisloped * ediat(ji,jj,jk) ) ) ! Computation of production function for Chlorophyll !-------------------------------------------------- zpislopen = zpislopeadn(ji,jj,jk) / ( zprmaxn(ji,jj,jk) * zmxl_chl(ji,jj,jk) * rday + rtrn ) zpisloped = zpislopeadd(ji,jj,jk) / ( zprmaxd(ji,jj,jk) * zmxl_chl(ji,jj,jk) * rday + rtrn ) zprnch(ji,jj,jk) = zprmaxn(ji,jj,jk) * ( 1.- EXP( -zpislopen * enanom(ji,jj,jk) ) ) zprdch(ji,jj,jk) = zprmaxd(ji,jj,jk) * ( 1.- EXP( -zpisloped * ediatm(ji,jj,jk) ) ) ENDIF END_3D ! Computation of a proxy of the N/C ratio ! --------------------------------------- DO_3D_11_11( 1, jpkm1 ) zval = MIN( xnanopo4(ji,jj,jk), ( xnanonh4(ji,jj,jk) + xnanono3(ji,jj,jk) ) ) & & * zprmaxn(ji,jj,jk) / ( zprbio(ji,jj,jk) + rtrn ) quotan(ji,jj,jk) = MIN( 1., 0.2 + 0.8 * zval ) zval = MIN( xdiatpo4(ji,jj,jk), ( xdiatnh4(ji,jj,jk) + xdiatno3(ji,jj,jk) ) ) & & * zprmaxd(ji,jj,jk) / ( zprdia(ji,jj,jk) + rtrn ) quotad(ji,jj,jk) = MIN( 1., 0.2 + 0.8 * zval ) END_3D DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN ! Si/C of diatoms ! ------------------------ ! Si/C increases with iron stress and silicate availability ! Si/C is arbitrariliy increased for very high Si concentrations ! to mimic the very high ratios observed in the Southern Ocean (silpot2) zlim = tr(ji,jj,jk,jpsil,Kbb) / ( tr(ji,jj,jk,jpsil,Kbb) + xksi1 ) zsilim = MIN( zprdia(ji,jj,jk) / ( zprmaxd(ji,jj,jk) + rtrn ), xlimsi(ji,jj,jk) ) zsilfac = 4.4 * EXP( -4.23 * zsilim ) * MAX( 0.e0, MIN( 1., 2.2 * ( zlim - 0.5 ) ) ) + 1.e0 zsiborn = tr(ji,jj,jk,jpsil,Kbb) * tr(ji,jj,jk,jpsil,Kbb) * tr(ji,jj,jk,jpsil,Kbb) IF (gphit(ji,jj) < -30 ) THEN zsilfac2 = 1. + 2. * zsiborn / ( zsiborn + xksi2**3 ) ELSE zsilfac2 = 1. + zsiborn / ( zsiborn + xksi2**3 ) ENDIF zysopt(ji,jj,jk) = grosip * zlim * zsilfac * zsilfac2 ENDIF END_3D ! Mixed-layer effect on production ! Sea-ice effect on production DO_3D_11_11( 1, jpkm1 ) zprbio(ji,jj,jk) = zprbio(ji,jj,jk) * ( 1. - fr_i(ji,jj) ) zprdia(ji,jj,jk) = zprdia(ji,jj,jk) * ( 1. - fr_i(ji,jj) ) END_3D ! Computation of the various production terms DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN ! production terms for nanophyto. (C) zprorcan(ji,jj,jk) = zprbio(ji,jj,jk) * xlimphy(ji,jj,jk) * tr(ji,jj,jk,jpphy,Kbb) * rfact2 zpronewn(ji,jj,jk) = zprorcan(ji,jj,jk)* xnanono3(ji,jj,jk) / ( xnanono3(ji,jj,jk) + xnanonh4(ji,jj,jk) + rtrn ) ! zratio = tr(ji,jj,jk,jpnfe,Kbb) / ( tr(ji,jj,jk,jpphy,Kbb) * fecnm + rtrn ) zmax = MAX( 0., ( 1. - zratio ) / ABS( 1.05 - zratio ) ) zprofen(ji,jj,jk) = fecnm * zprmaxn(ji,jj,jk) * ( 1.0 - fr_i(ji,jj) ) & & * ( 4. - 4.5 * xlimnfe(ji,jj,jk) / ( xlimnfe(ji,jj,jk) + 0.5 ) ) & & * biron(ji,jj,jk) / ( biron(ji,jj,jk) + concnfe(ji,jj,jk) ) & & * zmax * tr(ji,jj,jk,jpphy,Kbb) * rfact2 ! production terms for diatoms (C) zprorcad(ji,jj,jk) = zprdia(ji,jj,jk) * xlimdia(ji,jj,jk) * tr(ji,jj,jk,jpdia,Kbb) * rfact2 zpronewd(ji,jj,jk) = zprorcad(ji,jj,jk) * xdiatno3(ji,jj,jk) / ( xdiatno3(ji,jj,jk) + xdiatnh4(ji,jj,jk) + rtrn ) ! zratio = tr(ji,jj,jk,jpdfe,Kbb) / ( tr(ji,jj,jk,jpdia,Kbb) * fecdm + rtrn ) zmax = MAX( 0., ( 1. - zratio ) / ABS( 1.05 - zratio ) ) zprofed(ji,jj,jk) = fecdm * zprmaxd(ji,jj,jk) * ( 1.0 - fr_i(ji,jj) ) & & * ( 4. - 4.5 * xlimdfe(ji,jj,jk) / ( xlimdfe(ji,jj,jk) + 0.5 ) ) & & * biron(ji,jj,jk) / ( biron(ji,jj,jk) + concdfe(ji,jj,jk) ) & & * zmax * tr(ji,jj,jk,jpdia,Kbb) * rfact2 ENDIF END_3D ! Computation of the chlorophyll production terms DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN ! production terms for nanophyto. ( chlorophyll ) znanotot = enanom(ji,jj,jk) / ( zmxl_chl(ji,jj,jk) + rtrn ) zprod = rday * zprorcan(ji,jj,jk) * zprnch(ji,jj,jk) * xlimphy(ji,jj,jk) zprochln = chlcmin * 12. * zprorcan (ji,jj,jk) chlcnm_n = MIN ( chlcnm, ( chlcnm / (1. - 1.14 / 43.4 *ts(ji,jj,jk,jp_tem,Kmm))) * (1. - 1.14 / 43.4 * 20.)) zprochln = zprochln + (chlcnm_n-chlcmin) * 12. * zprod / & & ( zpislopeadn(ji,jj,jk) * znanotot +rtrn) ! production terms for diatoms ( chlorophyll ) zdiattot = ediatm(ji,jj,jk) / ( zmxl_chl(ji,jj,jk) + rtrn ) zprod = rday * zprorcad(ji,jj,jk) * zprdch(ji,jj,jk) * xlimdia(ji,jj,jk) zprochld = chlcmin * 12. * zprorcad(ji,jj,jk) chlcdm_n = MIN ( chlcdm, ( chlcdm / (1. - 1.14 / 43.4 * ts(ji,jj,jk,jp_tem,Kmm))) * (1. - 1.14 / 43.4 * 20.)) zprochld = zprochld + (chlcdm_n-chlcmin) * 12. * zprod / & & ( zpislopeadd(ji,jj,jk) * zdiattot +rtrn ) ! Update the arrays TRA which contain the Chla sources and sinks tr(ji,jj,jk,jpnch,Krhs) = tr(ji,jj,jk,jpnch,Krhs) + zprochln * texcretn tr(ji,jj,jk,jpdch,Krhs) = tr(ji,jj,jk,jpdch,Krhs) + zprochld * texcretd ENDIF END_3D ! Update the arrays TRA which contain the biological sources and sinks DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN zproreg = zprorcan(ji,jj,jk) - zpronewn(ji,jj,jk) zproreg2 = zprorcad(ji,jj,jk) - zpronewd(ji,jj,jk) zdocprod = excretd * zprorcad(ji,jj,jk) + excretn * zprorcan(ji,jj,jk) tr(ji,jj,jk,jppo4,Krhs) = tr(ji,jj,jk,jppo4,Krhs) - zprorcan(ji,jj,jk) - zprorcad(ji,jj,jk) tr(ji,jj,jk,jpno3,Krhs) = tr(ji,jj,jk,jpno3,Krhs) - zpronewn(ji,jj,jk) - zpronewd(ji,jj,jk) tr(ji,jj,jk,jpnh4,Krhs) = tr(ji,jj,jk,jpnh4,Krhs) - zproreg - zproreg2 tr(ji,jj,jk,jpphy,Krhs) = tr(ji,jj,jk,jpphy,Krhs) + zprorcan(ji,jj,jk) * texcretn tr(ji,jj,jk,jpnfe,Krhs) = tr(ji,jj,jk,jpnfe,Krhs) + zprofen(ji,jj,jk) * texcretn tr(ji,jj,jk,jpdia,Krhs) = tr(ji,jj,jk,jpdia,Krhs) + zprorcad(ji,jj,jk) * texcretd tr(ji,jj,jk,jpdfe,Krhs) = tr(ji,jj,jk,jpdfe,Krhs) + zprofed(ji,jj,jk) * texcretd tr(ji,jj,jk,jpdsi,Krhs) = tr(ji,jj,jk,jpdsi,Krhs) + zprorcad(ji,jj,jk) * zysopt(ji,jj,jk) * texcretd tr(ji,jj,jk,jpdoc,Krhs) = tr(ji,jj,jk,jpdoc,Krhs) + zdocprod tr(ji,jj,jk,jpoxy,Krhs) = tr(ji,jj,jk,jpoxy,Krhs) + o2ut * ( zproreg + zproreg2) & & + ( o2ut + o2nit ) * ( zpronewn(ji,jj,jk) + zpronewd(ji,jj,jk) ) ! zfeup = texcretn * zprofen(ji,jj,jk) + texcretd * zprofed(ji,jj,jk) tr(ji,jj,jk,jpfer,Krhs) = tr(ji,jj,jk,jpfer,Krhs) - zfeup tr(ji,jj,jk,jpsil,Krhs) = tr(ji,jj,jk,jpsil,Krhs) - texcretd * zprorcad(ji,jj,jk) * zysopt(ji,jj,jk) tr(ji,jj,jk,jpdic,Krhs) = tr(ji,jj,jk,jpdic,Krhs) - zprorcan(ji,jj,jk) - zprorcad(ji,jj,jk) tr(ji,jj,jk,jptal,Krhs) = tr(ji,jj,jk,jptal,Krhs) + rno3 * ( zpronewn(ji,jj,jk) + zpronewd(ji,jj,jk) ) & & - rno3 * ( zproreg + zproreg2 ) ENDIF END_3D ! IF( ln_ligand ) THEN zpligprod1(:,:,:) = 0._wp ; zpligprod2(:,:,:) = 0._wp DO_3D_11_11( 1, jpkm1 ) IF( etot_ndcy(ji,jj,jk) > 1.E-3 ) THEN zdocprod = excretd * zprorcad(ji,jj,jk) + excretn * zprorcan(ji,jj,jk) zfeup = texcretn * zprofen(ji,jj,jk) + texcretd * zprofed(ji,jj,jk) tr(ji,jj,jk,jplgw,Krhs) = tr(ji,jj,jk,jplgw,Krhs) + zdocprod * ldocp - zfeup * plig(ji,jj,jk) * lthet zpligprod1(ji,jj,jk) = zdocprod * ldocp zpligprod2(ji,jj,jk) = zfeup * plig(ji,jj,jk) * lthet ENDIF END_3D ENDIF ! Total primary production per year IF( iom_use( "tintpp" ) .OR. ( ln_check_mass .AND. kt == nitend .AND. knt == nrdttrc ) ) & & tpp = glob_sum( 'p4zprod', ( zprorcan(:,:,:) + zprorcad(:,:,:) ) * cvol(:,:,:) ) IF( lk_iomput .AND. knt == nrdttrc ) THEN zfact = 1.e+3 * rfact2r ! conversion from mol/l/kt to mol/m3/s ! CALL iom_put( "PPPHYN" , zprorcan(:,:,:) * zfact * tmask(:,:,:) ) ! primary production by nanophyto CALL iom_put( "PPPHYD" , zprorcad(:,:,:) * zfact * tmask(:,:,:) ) ! primary production by diatomes CALL iom_put( "PPNEWN" , zpronewn(:,:,:) * zfact * tmask(:,:,:) ) ! new primary production by nanophyto CALL iom_put( "PPNEWD" , zpronewd(:,:,:) * zfact * tmask(:,:,:) ) ! new primary production by diatomes CALL iom_put( "PBSi" , zprorcad(:,:,:) * zfact * tmask(:,:,:) * zysopt(:,:,:) ) ! biogenic silica production CALL iom_put( "PFeN" , zprofen(:,:,:) * zfact * tmask(:,:,:) ) ! biogenic iron production by nanophyto CALL iom_put( "PFeD" , zprofed(:,:,:) * zfact * tmask(:,:,:) ) ! biogenic iron production by diatomes IF( ln_ligand ) THEN CALL iom_put( "LPRODP" , zpligprod1(:,:,:) * 1e9 * zfact * tmask(:,:,:) ) CALL iom_put( "LDETP" , zpligprod2(:,:,:) * 1e9 * zfact * tmask(:,:,:) ) ENDIF CALL iom_put( "Mumax" , zprmaxn(:,:,:) * tmask(:,:,:) ) ! Maximum growth rate CALL iom_put( "MuN" , zprbio(:,:,:) * xlimphy(:,:,:) * tmask(:,:,:) ) ! Realized growth rate for nanophyto CALL iom_put( "MuD" , zprdia(:,:,:) * xlimdia(:,:,:) * tmask(:,:,:) ) ! Realized growth rate for diatoms CALL iom_put( "LNlight" , zprbio (:,:,:) / (zprmaxn(:,:,:) + rtrn) * tmask(:,:,:) ) ! light limitation term CALL iom_put( "LDlight" , zprdia (:,:,:) / (zprmaxd(:,:,:) + rtrn) * tmask(:,:,:) ) CALL iom_put( "TPP" , ( zprorcan(:,:,:) + zprorcad(:,:,:) ) * zfact * tmask(:,:,:) ) ! total primary production CALL iom_put( "TPNEW" , ( zpronewn(:,:,:) + zpronewd(:,:,:) ) * zfact * tmask(:,:,:) ) ! total new production CALL iom_put( "TPBFE" , ( zprofen(:,:,:) + zprofed(:,:,:) ) * zfact * tmask(:,:,:) ) ! total biogenic iron production CALL iom_put( "tintpp" , tpp * zfact ) ! global total integrated primary production molC/s ENDIF IF(sn_cfctl%l_prttrc) THEN ! print mean trends (used for debugging) WRITE(charout, FMT="('prod')") CALL prt_ctl_trc_info(charout) CALL prt_ctl_trc(tab4d=tr(:,:,:,:,Krhs), mask=tmask, clinfo=ctrcnm) ENDIF ! IF( ln_timing ) CALL timing_stop('p4z_prod') ! END SUBROUTINE p4z_prod SUBROUTINE p4z_prod_init !!---------------------------------------------------------------------- !! *** ROUTINE p4z_prod_init *** !! !! ** Purpose : Initialization of phytoplankton production parameters !! !! ** Method : Read the nampisprod namelist and check the parameters !! called at the first timestep (nittrc000) !! !! ** input : Namelist nampisprod !!---------------------------------------------------------------------- INTEGER :: ios ! Local integer ! NAMELIST/namp4zprod/ pislopen, pisloped, xadap, bresp, excretn, excretd, & & chlcnm, chlcdm, chlcmin, fecnm, fecdm, grosip !!---------------------------------------------------------------------- ! IF(lwp) THEN ! control print WRITE(numout,*) WRITE(numout,*) 'p4z_prod_init : phytoplankton growth' WRITE(numout,*) '~~~~~~~~~~~~~' ENDIF ! READ ( numnatp_ref, namp4zprod, IOSTAT = ios, ERR = 901) 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namp4zprod in reference namelist' ) READ ( numnatp_cfg, namp4zprod, IOSTAT = ios, ERR = 902 ) 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namp4zprod in configuration namelist' ) IF(lwm) WRITE( numonp, namp4zprod ) IF(lwp) THEN ! control print WRITE(numout,*) ' Namelist : namp4zprod' WRITE(numout,*) ' mean Si/C ratio grosip =', grosip WRITE(numout,*) ' P-I slope pislopen =', pislopen WRITE(numout,*) ' Acclimation factor to low light xadap =', xadap WRITE(numout,*) ' excretion ratio of nanophytoplankton excretn =', excretn WRITE(numout,*) ' excretion ratio of diatoms excretd =', excretd WRITE(numout,*) ' basal respiration in phytoplankton bresp =', bresp WRITE(numout,*) ' Maximum Chl/C in phytoplankton chlcmin =', chlcmin WRITE(numout,*) ' P-I slope for diatoms pisloped =', pisloped WRITE(numout,*) ' Minimum Chl/C in nanophytoplankton chlcnm =', chlcnm WRITE(numout,*) ' Minimum Chl/C in diatoms chlcdm =', chlcdm WRITE(numout,*) ' Maximum Fe/C in nanophytoplankton fecnm =', fecnm WRITE(numout,*) ' Minimum Fe/C in diatoms fecdm =', fecdm ENDIF ! r1_rday = 1._wp / rday texcretn = 1._wp - excretn texcretd = 1._wp - excretd tpp = 0._wp ! END SUBROUTINE p4z_prod_init INTEGER FUNCTION p4z_prod_alloc() !!---------------------------------------------------------------------- !! *** ROUTINE p4z_prod_alloc *** !!---------------------------------------------------------------------- ALLOCATE( quotan(jpi,jpj,jpk), quotad(jpi,jpj,jpk), STAT = p4z_prod_alloc ) ! IF( p4z_prod_alloc /= 0 ) CALL ctl_stop( 'STOP', 'p4z_prod_alloc : failed to allocate arrays.' ) ! END FUNCTION p4z_prod_alloc !!====================================================================== END MODULE p4zprod