MODULE p4zsed !!====================================================================== !! *** MODULE p4sed *** !! TOP : PISCES Compute loss of organic matter in the sediments !!====================================================================== !! History : 1.0 ! 2004-03 (O. Aumont) Original code !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 !! 3.4 ! 2011-06 (C. Ethe) USE of fldread !! 3.5 ! 2012-07 (O. Aumont) improvment of river input of nutrients !!---------------------------------------------------------------------- !! p4z_sed : Compute loss of organic matter in the sediments !!---------------------------------------------------------------------- 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 p4zsbc ! External source of nutrients USE p4zint ! interpolation and computation of various fields USE sed ! Sediment module USE iom ! I/O manager USE prtctl_trc ! print control for debugging IMPLICIT NONE PRIVATE PUBLIC p4z_sed PUBLIC p4z_sed_alloc REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: nitrpot !: Nitrogen fixation REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,: ) :: sdenit !: Nitrate reduction in the sediments REAL(wp) :: r1_rday !: inverse of rday LOGICAL, SAVE :: lk_sed !!---------------------------------------------------------------------- !! NEMO/TOP 4.0 , NEMO Consortium (2018) !! $Id$ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE p4z_sed( kt, knt ) !!--------------------------------------------------------------------- !! *** ROUTINE p4z_sed *** !! !! ** Purpose : Compute loss of organic matter in the sediments. This !! is by no way a sediment model. The loss is simply !! computed to balance the inout from rivers and dust !! !! ** Method : - ??? !!--------------------------------------------------------------------- ! INTEGER, INTENT(in) :: kt, knt ! ocean time step INTEGER :: ji, jj, jk, ikt REAL(wp) :: zrivalk, zrivsil, zrivno3 REAL(wp) :: zwflux, zfminus, zfplus REAL(wp) :: zlim, zfact, zfactcal REAL(wp) :: zo2, zno3, zflx, zpdenit, z1pdenit, zolimit REAL(wp) :: zsiloss, zcaloss, zws3, zws4, zwsc, zdep REAL(wp) :: zwstpoc, zwstpon, zwstpop REAL(wp) :: ztrfer, ztrpo4s, ztrdp, zwdust, zmudia, ztemp REAL(wp) :: xdiano3, xdianh4 REAL(wp) :: zwssfep ! CHARACTER (len=25) :: charout REAL(wp), DIMENSION(jpi,jpj ) :: zdenit2d, zbureff, zwork REAL(wp), DIMENSION(jpi,jpj ) :: zwsbio3, zwsbio4 REAL(wp), DIMENSION(jpi,jpj ) :: zsedcal, zsedsi, zsedc REAL(wp), DIMENSION(jpi,jpj,jpk) :: zsoufer, zlight REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrpo4, ztrdop, zirondep, zpdep REAL(wp), ALLOCATABLE, DIMENSION(:,: ) :: zsidep, zwsfep, zironice !!--------------------------------------------------------------------- ! IF( ln_timing ) CALL timing_start('p4z_sed') ! IF( kt == nittrc000 .AND. knt == 1 ) THEN r1_rday = 1. / rday IF (ln_sediment .AND. ln_sed_2way) THEN lk_sed = .TRUE. ELSE lk_sed = .FALSE. ENDIF ENDIF ! IF( kt == nittrc000 .AND. knt == 1 ) r1_rday = 1. / rday ! ! Allocate temporary workspace ALLOCATE( ztrpo4(jpi,jpj,jpk) ) IF( ln_p5z ) ALLOCATE( ztrdop(jpi,jpj,jpk) ) IF( ln_ligand ) ALLOCATE( zwsfep(jpi,jpj) ) zdenit2d(:,:) = 0.e0 zbureff (:,:) = 0.e0 zwork (:,:) = 0.e0 zsedsi (:,:) = 0.e0 zsedcal (:,:) = 0.e0 zsedc (:,:) = 0.e0 ! Iron input/uptake due to sea ice : Crude parameterization based on Lancelot et al. ! ---------------------------------------------------- IF( ln_ironice ) THEN ! ALLOCATE( zironice(jpi,jpj) ) ! DO jj = 1, jpj DO ji = 1, jpi zdep = rfact2 / e3t_n(ji,jj,1) zwflux = fmmflx(ji,jj) / 1000._wp zfminus = MIN( 0._wp, -zwflux ) * trb(ji,jj,1,jpfer) * zdep zfplus = MAX( 0._wp, -zwflux ) * icefeinput * zdep zironice(ji,jj) = zfplus + zfminus END DO END DO ! tra(:,:,1,jpfer) = tra(:,:,1,jpfer) + zironice(:,:) ! IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironice" ) ) & & CALL iom_put( "Ironice", zironice(:,:) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! iron flux from ice ! DEALLOCATE( zironice ) ! ENDIF ! Add the external input of nutrients from dust deposition ! ---------------------------------------------------------- IF( ln_dust ) THEN ! ALLOCATE( zsidep(jpi,jpj), zpdep(jpi,jpj,jpk), zirondep(jpi,jpj,jpk) ) ! ! Iron and Si deposition at the surface IF( ln_solub ) THEN zirondep(:,:,1) = solub(:,:) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss ELSE zirondep(:,:,1) = dustsolub * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss ENDIF IF ( ln_ligand ) THEN IF( ln_solub ) THEN tra(:,:,1,jpfep) = tra(:,:,1,jpfep) + rdustfep * (1.0 - solub(:,:)) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 ELSE tra(:,:,1,jpfep) = tra(:,:,1,jpfep) + rdustfep * (1.0 - dustsolub) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 ENDIF ENDIF zsidep(:,:) = 8.8 * 0.075 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 28.1 zpdep (:,:,1) = 0.1 * 0.021 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 31. / po4r ! ! Iron solubilization of particles in the water column ! ! dust in kg/m2/s ---> 1/55.85 to put in mol/Fe ; wdust in m/j zwdust = 0.03 * rday / ( wdust * 55.85 ) / ( 270. * rday ) DO jk = 2, jpkm1 zirondep(:,:,jk) = dust(:,:) * mfrac * zwdust * rfact2 * EXP( -gdept_n(:,:,jk) / 540. ) zpdep (:,:,jk) = zirondep(:,:,jk) * 0.023 END DO ! ! Iron solubilization of particles in the water column tra(:,:,1,jpsil) = tra(:,:,1,jpsil) + zsidep (:,:) DO jk = 1, jpkm1 tra(:,:,jk,jppo4) = tra(:,:,jk,jppo4) + zpdep (:,:,jk) tra(:,:,jk,jpfer) = tra(:,:,jk,jpfer) + zirondep(:,:,jk) ENDDO ! IF( lk_iomput ) THEN IF( knt == nrdttrc ) THEN IF( iom_use( "Irondep" ) ) & & CALL iom_put( "Irondep", zirondep(:,:,1) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! surface downward dust depo of iron IF( iom_use( "pdust" ) ) & & CALL iom_put( "pdust" , dust(:,:) / ( wdust * rday ) * tmask(:,:,1) ) ! dust concentration at surface ENDIF ENDIF DEALLOCATE( zsidep, zpdep, zirondep ) ! ENDIF ! Add the external input of nutrients from river ! ---------------------------------------------------------- IF( ln_river ) THEN DO jj = 1, jpj DO ji = 1, jpi DO jk = 1, nk_rnf(ji,jj) tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + rivdip(ji,jj) * rfact2 tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3) + rivdin(ji,jj) * rfact2 tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + rivdic(ji,jj) * 5.e-5 * rfact2 tra(ji,jj,jk,jpsil) = tra(ji,jj,jk,jpsil) + rivdsi(ji,jj) * rfact2 tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + rivdic(ji,jj) * rfact2 tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + ( rivalk(ji,jj) - rno3 * rivdin(ji,jj) ) * rfact2 tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + rivdoc(ji,jj) * rfact2 ENDDO ENDDO ENDDO IF (ln_ligand) THEN DO jj = 1, jpj DO ji = 1, jpi DO jk = 1, nk_rnf(ji,jj) tra(ji,jj,jk,jplgw) = tra(ji,jj,jk,jplgw) + rivdic(ji,jj) * 5.e-5 * rfact2 ENDDO ENDDO ENDDO ENDIF IF( ln_p5z ) THEN DO jj = 1, jpj DO ji = 1, jpi DO jk = 1, nk_rnf(ji,jj) tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + rivdop(ji,jj) * rfact2 tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + rivdon(ji,jj) * rfact2 ENDDO ENDDO ENDDO ENDIF ENDIF ! Add the external input of nutrients from nitrogen deposition ! ---------------------------------------------------------- IF( ln_ndepo ) THEN tra(:,:,1,jpno3) = tra(:,:,1,jpno3) + nitdep(:,:) * rfact2 tra(:,:,1,jptal) = tra(:,:,1,jptal) - rno3 * nitdep(:,:) * rfact2 ENDIF ! Add the external input of iron from hydrothermal vents ! ------------------------------------------------------ IF( ln_hydrofe ) THEN tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + hydrofe(:,:,:) * rfact2 IF( ln_ligand ) THEN tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( hydrofe(:,:,:) * fep_rath ) * rfact2 tra(:,:,:,jplgw) = tra(:,:,:,jplgw) + ( hydrofe(:,:,:) * lgw_rath ) * rfact2 ENDIF ! IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "HYDR" ) ) & & CALL iom_put( "HYDR", hydrofe(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! hydrothermal iron input ENDIF ! OA: Warning, the following part is necessary to avoid CFL problems above the sediments ! -------------------------------------------------------------------- DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = e3t_n(ji,jj,ikt) / xstep zwsbio4(ji,jj) = MIN( 0.99 * zdep, wsbio4(ji,jj,ikt) ) zwsbio3(ji,jj) = MIN( 0.99 * zdep, wsbio3(ji,jj,ikt) ) END DO END DO ! IF( ln_ligand ) THEN DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = e3t_n(ji,jj,ikt) / xstep zwsfep(ji,jj) = MIN( 0.99 * zdep, wsfep(ji,jj,ikt) ) END DO ENDDO ENDIF IF( .NOT.lk_sed ) THEN ! ! Add the external input of iron from sediment mobilization ! ------------------------------------------------------ IF( ln_ironsed ) THEN tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + ironsed(:,:,:) * rfact2 IF( ln_ligand ) tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( ironsed(:,:,:) * fep_rats ) * rfact2 ! IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironsed" ) ) & & CALL iom_put( "Ironsed", ironsed(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! iron inputs from sediments ENDIF ! Computation of the sediment denitrification proportion: The metamodel from midlleburg (2006) is being used ! Computation of the fraction of organic matter that is permanently buried from Dunne's model ! ------------------------------------------------------- DO jj = 1, jpj DO ji = 1, jpi IF( tmask(ji,jj,1) == 1 ) THEN ikt = mbkt(ji,jj) zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E3 * 1E6 / 1E4 zflx = LOG10( MAX( 1E-3, zflx ) ) zo2 = LOG10( MAX( 10. , trb(ji,jj,ikt,jpoxy) * 1E6 ) ) zno3 = LOG10( MAX( 1. , trb(ji,jj,ikt,jpno3) * 1E6 * rno3 ) ) zdep = LOG10( gdepw_n(ji,jj,ikt+1) ) zdenit2d(ji,jj) = -2.2567 - 1.185 * zflx - 0.221 * zflx**2 - 0.3995 * zno3 * zo2 + 1.25 * zno3 & & + 0.4721 * zo2 - 0.0996 * zdep + 0.4256 * zflx * zo2 zdenit2d(ji,jj) = 10.0**( zdenit2d(ji,jj) ) ! zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E6 zbureff(ji,jj) = 0.013 + 0.53 * zflx**2 / ( 7.0 + zflx )**2 ENDIF END DO END DO ! ENDIF ! This loss is scaled at each bottom grid cell for equilibrating the total budget of silica in the ocean. ! Thus, the amount of silica lost in the sediments equal the supply at the surface (dust+rivers) ! ------------------------------------------------------ IF( .NOT.lk_sed ) zrivsil = 1._wp - sedsilfrac DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zwsc = zwsbio4(ji,jj) * zdep zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc zcaloss = trb(ji,jj,ikt,jpcal) * zwsc ! tra(ji,jj,ikt,jpgsi) = tra(ji,jj,ikt,jpgsi) - zsiloss tra(ji,jj,ikt,jpcal) = tra(ji,jj,ikt,jpcal) - zcaloss END DO END DO ! IF( .NOT.lk_sed ) THEN DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zwsc = zwsbio4(ji,jj) * zdep zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc zcaloss = trb(ji,jj,ikt,jpcal) * zwsc tra(ji,jj,ikt,jpsil) = tra(ji,jj,ikt,jpsil) + zsiloss * zrivsil ! zfactcal = MIN( excess(ji,jj,ikt), 0.2 ) zfactcal = MIN( 1., 1.3 * ( 0.2 - zfactcal ) / ( 0.4 - zfactcal ) ) zrivalk = sedcalfrac * zfactcal tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + zcaloss * zrivalk * 2.0 tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zcaloss * zrivalk zsedcal(ji,jj) = (1.0 - zrivalk) * zcaloss * e3t_n(ji,jj,ikt) zsedsi (ji,jj) = (1.0 - zrivsil) * zsiloss * e3t_n(ji,jj,ikt) END DO END DO ENDIF ! DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zws4 = zwsbio4(ji,jj) * zdep zws3 = zwsbio3(ji,jj) * zdep tra(ji,jj,ikt,jpgoc) = tra(ji,jj,ikt,jpgoc) - trb(ji,jj,ikt,jpgoc) * zws4 tra(ji,jj,ikt,jppoc) = tra(ji,jj,ikt,jppoc) - trb(ji,jj,ikt,jppoc) * zws3 tra(ji,jj,ikt,jpbfe) = tra(ji,jj,ikt,jpbfe) - trb(ji,jj,ikt,jpbfe) * zws4 tra(ji,jj,ikt,jpsfe) = tra(ji,jj,ikt,jpsfe) - trb(ji,jj,ikt,jpsfe) * zws3 END DO END DO ! IF( ln_ligand ) THEN DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zwssfep = zwsfep(ji,jj) * zdep tra(ji,jj,ikt,jpfep) = tra(ji,jj,ikt,jpfep) - trb(ji,jj,ikt,jpfep) * zwssfep END DO END DO ENDIF ! IF( ln_p5z ) THEN DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zws4 = zwsbio4(ji,jj) * zdep zws3 = zwsbio3(ji,jj) * zdep tra(ji,jj,ikt,jpgon) = tra(ji,jj,ikt,jpgon) - trb(ji,jj,ikt,jpgon) * zws4 tra(ji,jj,ikt,jppon) = tra(ji,jj,ikt,jppon) - trb(ji,jj,ikt,jppon) * zws3 tra(ji,jj,ikt,jpgop) = tra(ji,jj,ikt,jpgop) - trb(ji,jj,ikt,jpgop) * zws4 tra(ji,jj,ikt,jppop) = tra(ji,jj,ikt,jppop) - trb(ji,jj,ikt,jppop) * zws3 END DO END DO ENDIF IF( .NOT.lk_sed ) THEN ! The 0.5 factor in zpdenit is to avoid negative NO3 concentration after ! denitrification in the sediments. Not very clever, but simpliest option. DO jj = 1, jpj DO ji = 1, jpi ikt = mbkt(ji,jj) zdep = xstep / e3t_n(ji,jj,ikt) zws4 = zwsbio4(ji,jj) * zdep zws3 = zwsbio3(ji,jj) * zdep zrivno3 = 1. - zbureff(ji,jj) zwstpoc = trb(ji,jj,ikt,jpgoc) * zws4 + trb(ji,jj,ikt,jppoc) * zws3 zpdenit = MIN( 0.5 * ( trb(ji,jj,ikt,jpno3) - rtrn ) / rdenit, zdenit2d(ji,jj) * zwstpoc * zrivno3 ) z1pdenit = zwstpoc * zrivno3 - zpdenit zolimit = MIN( ( trb(ji,jj,ikt,jpoxy) - rtrn ) / o2ut, z1pdenit * ( 1.- nitrfac(ji,jj,ikt) ) ) tra(ji,jj,ikt,jpdoc) = tra(ji,jj,ikt,jpdoc) + z1pdenit - zolimit tra(ji,jj,ikt,jppo4) = tra(ji,jj,ikt,jppo4) + zpdenit + zolimit tra(ji,jj,ikt,jpnh4) = tra(ji,jj,ikt,jpnh4) + zpdenit + zolimit tra(ji,jj,ikt,jpno3) = tra(ji,jj,ikt,jpno3) - rdenit * zpdenit tra(ji,jj,ikt,jpoxy) = tra(ji,jj,ikt,jpoxy) - zolimit * o2ut tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + rno3 * (zolimit + (1.+rdenit) * zpdenit ) tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zpdenit + zolimit sdenit(ji,jj) = rdenit * zpdenit * e3t_n(ji,jj,ikt) zsedc(ji,jj) = (1. - zrivno3) * zwstpoc * e3t_n(ji,jj,ikt) IF( ln_p5z ) THEN zwstpop = trb(ji,jj,ikt,jpgop) * zws4 + trb(ji,jj,ikt,jppop) * zws3 zwstpon = trb(ji,jj,ikt,jpgon) * zws4 + trb(ji,jj,ikt,jppon) * zws3 tra(ji,jj,ikt,jpdon) = tra(ji,jj,ikt,jpdon) + ( z1pdenit - zolimit ) * zwstpon / (zwstpoc + rtrn) tra(ji,jj,ikt,jpdop) = tra(ji,jj,ikt,jpdop) + ( z1pdenit - zolimit ) * zwstpop / (zwstpoc + rtrn) ENDIF END DO END DO ENDIF ! Nitrogen fixation process ! Small source iron from particulate inorganic iron !----------------------------------- DO jk = 1, jpkm1 zlight (:,:,jk) = ( 1.- EXP( -etot_ndcy(:,:,jk) / diazolight ) ) * ( 1. - fr_i(:,:) ) zsoufer(:,:,jk) = zlight(:,:,jk) * 2E-11 / ( 2E-11 + biron(:,:,jk) ) ENDDO IF( ln_p4z ) THEN DO jk = 1, jpkm1 DO jj = 1, jpj DO ji = 1, jpi ! ! Potential nitrogen fixation dependant on temperature and iron ztemp = tsn(ji,jj,jk,jp_tem) zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 ! Potential nitrogen fixation dependant on temperature and iron xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) zlim = ( 1.- xdiano3 - xdianh4 ) IF( zlim <= 0.1 ) zlim = 0.01 zfact = zlim * rfact2 ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) ztrdp = ztrpo4(ji,jj,jk) nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) END DO END DO END DO ELSE ! p5z DO jk = 1, jpkm1 DO jj = 1, jpj DO ji = 1, jpi ! ! Potential nitrogen fixation dependant on temperature and iron ztemp = tsn(ji,jj,jk,jp_tem) zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 ! Potential nitrogen fixation dependant on temperature and iron xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) zlim = ( 1.- xdiano3 - xdianh4 ) IF( zlim <= 0.1 ) zlim = 0.01 zfact = zlim * rfact2 ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) ztrdop(ji,jj,jk) = trb(ji,jj,jk,jpdop) / ( 1E-6 + trb(ji,jj,jk,jpdop) ) * (1. - ztrpo4(ji,jj,jk)) ztrdp = ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) END DO END DO END DO ENDIF ! Nitrogen change due to nitrogen fixation ! ---------------------------------------- IF( ln_p4z ) THEN DO jk = 1, jpkm1 DO jj = 1, jpj DO ji = 1, jpi zfact = nitrpot(ji,jj,jk) * nitrfix tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - zfact * 2.0 / 3.0 tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + ( o2ut + o2nit ) * zfact * 2.0 / 3.0 + o2nit * zfact / 3.0 tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + 30E-6 * zfact * 1.0 / 3.0 * 2.0 / 3.0 tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + 30E-6 * zfact * 1.0 / 3.0 * 1.0 / 3.0 tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + concdnh4 / ( concdnh4 + trb(ji,jj,jk,jppo4) ) & & * 0.001 * trb(ji,jj,jk,jpdoc) * xstep END DO END DO END DO ELSE ! p5z DO jk = 1, jpkm1 DO jj = 1, jpj DO ji = 1, jpi zfact = nitrpot(ji,jj,jk) * nitrfix tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - 16.0 / 46.0 * zfact * ( 1.0 - 1.0 / 3.0 ) & & * ztrpo4(ji,jj,jk) / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + zfact * 1.0 / 3.0 tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + 16.0 / 46.0 * zfact / 3.0 & & - 16.0 / 46.0 * zfact * ztrdop(ji,jj,jk) & & / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zfact * 1.0 / 3.0 * 2.0 /3.0 tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 2.0 /3.0 tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zfact * 1.0 / 3.0 * 1.0 /3.0 tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 1.0 /3.0 tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + ( o2ut + o2nit ) * zfact * 2.0 / 3.0 + o2nit * zfact / 3.0 tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + 30E-6 * zfact * 1.0 / 3.0 * 2.0 / 3.0 tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + 30E-6 * zfact * 1.0 / 3.0 * 1.0 / 3.0 tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday END DO END DO END DO ! ENDIF IF( lk_iomput ) THEN IF( knt == nrdttrc ) THEN zfact = 1.e+3 * rfact2r ! conversion from molC/l/kt to molN/m3/s IF( iom_use("Nfix" ) ) CALL iom_put( "Nfix", nitrpot(:,:,:) * nitrfix * rno3 * zfact * tmask(:,:,:) ) ! nitrogen fixation IF( iom_use("INTNFIX") ) THEN ! nitrogen fixation rate in ocean ( vertically integrated ) zwork(:,:) = 0. DO jk = 1, jpkm1 zwork(:,:) = zwork(:,:) + nitrpot(:,:,jk) * nitrfix * rno3 * zfact * e3t_n(:,:,jk) * tmask(:,:,jk) ENDDO CALL iom_put( "INTNFIX" , zwork ) ENDIF IF( iom_use("SedCal" ) ) CALL iom_put( "SedCal", zsedcal(:,:) * zfact ) IF( iom_use("SedSi" ) ) CALL iom_put( "SedSi", zsedsi (:,:) * zfact ) IF( iom_use("SedC" ) ) CALL iom_put( "SedC", zsedc (:,:) * zfact ) IF( iom_use("Sdenit" ) ) CALL iom_put( "Sdenit", sdenit (:,:) * zfact * rno3 ) ENDIF ENDIF ! IF(ln_ctl) THEN ! print mean trends (USEd for debugging) WRITE(charout, fmt="('sed ')") CALL prt_ctl_trc_info(charout) CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) ENDIF ! IF( ln_p5z ) DEALLOCATE( ztrpo4, ztrdop ) IF( ln_ligand ) DEALLOCATE( zwsfep ) ! IF( ln_timing ) CALL timing_stop('p4z_sed') ! END SUBROUTINE p4z_sed INTEGER FUNCTION p4z_sed_alloc() !!---------------------------------------------------------------------- !! *** ROUTINE p4z_sed_alloc *** !!---------------------------------------------------------------------- ALLOCATE( nitrpot(jpi,jpj,jpk), sdenit(jpi,jpj), STAT=p4z_sed_alloc ) ! IF( p4z_sed_alloc /= 0 ) CALL ctl_warn('p4z_sed_alloc: failed to allocate arrays') ! END FUNCTION p4z_sed_alloc !!====================================================================== END MODULE p4zsed