[3443] | 1 | MODULE p4zsed |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4sed *** |
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| 4 | !! TOP : PISCES Compute loss of organic matter in the sediments |
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| 5 | !!====================================================================== |
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| 6 | !! History : 1.0 ! 2004-03 (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 (C. Ethe) USE of fldread |
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| 9 | !! 3.5 ! 2012-07 (O. Aumont) improvment of river input of nutrients |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! p4z_sed : Compute loss of organic matter in the sediments |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 14 | USE trc ! passive tracers common variables |
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| 15 | USE sms_pisces ! PISCES Source Minus Sink variables |
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[10227] | 16 | USE p4zlim ! Co-limitations of differents nutrients |
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[3443] | 17 | USE p4zsbc ! External source of nutrients |
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| 18 | USE p4zint ! interpolation and computation of various fields |
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[10223] | 19 | USE sed ! Sediment module |
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[3443] | 20 | USE iom ! I/O manager |
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| 21 | USE prtctl_trc ! print control for debugging |
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| 22 | |
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| 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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| 25 | |
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[5385] | 26 | PUBLIC p4z_sed |
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| 27 | PUBLIC p4z_sed_alloc |
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| 28 | |
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| 29 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: nitrpot !: Nitrogen fixation |
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| 30 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,: ) :: sdenit !: Nitrate reduction in the sediments |
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[3443] | 31 | REAL(wp) :: r1_rday !: inverse of rday |
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[10223] | 32 | LOGICAL, SAVE :: lk_sed |
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[3443] | 33 | |
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| 34 | !!---------------------------------------------------------------------- |
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[10067] | 35 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[7753] | 36 | !! $Id$ |
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[10068] | 37 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3443] | 38 | !!---------------------------------------------------------------------- |
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| 39 | CONTAINS |
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| 40 | |
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[5385] | 41 | SUBROUTINE p4z_sed( kt, knt ) |
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[3443] | 42 | !!--------------------------------------------------------------------- |
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| 43 | !! *** ROUTINE p4z_sed *** |
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| 44 | !! |
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| 45 | !! ** Purpose : Compute loss of organic matter in the sediments. This |
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| 46 | !! is by no way a sediment model. The loss is simply |
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| 47 | !! computed to balance the inout from rivers and dust |
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| 48 | !! |
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| 49 | !! ** Method : - ??? |
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| 50 | !!--------------------------------------------------------------------- |
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| 51 | ! |
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[5385] | 52 | INTEGER, INTENT(in) :: kt, knt ! ocean time step |
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[10127] | 53 | INTEGER :: ji, jj, jk, ikt |
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| 54 | REAL(wp) :: zrivalk, zrivsil, zrivno3 |
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[3443] | 55 | REAL(wp) :: zwflux, zfminus, zfplus |
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| 56 | REAL(wp) :: zlim, zfact, zfactcal |
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[8533] | 57 | REAL(wp) :: zo2, zno3, zflx, zpdenit, z1pdenit, zolimit |
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[7646] | 58 | REAL(wp) :: zsiloss, zcaloss, zws3, zws4, zwsc, zdep |
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| 59 | REAL(wp) :: zwstpoc, zwstpon, zwstpop |
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| 60 | REAL(wp) :: ztrfer, ztrpo4s, ztrdp, zwdust, zmudia, ztemp |
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| 61 | REAL(wp) :: xdiano3, xdianh4 |
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| 62 | REAL(wp) :: zwssfep |
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[3531] | 63 | ! |
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[3443] | 64 | CHARACTER (len=25) :: charout |
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[10127] | 65 | REAL(wp), DIMENSION(jpi,jpj ) :: zdenit2d, zbureff, zwork |
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[9125] | 66 | REAL(wp), DIMENSION(jpi,jpj ) :: zwsbio3, zwsbio4, zwscal |
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| 67 | REAL(wp), DIMENSION(jpi,jpj ) :: zsedcal, zsedsi, zsedc |
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| 68 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zsoufer, zlight |
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| 69 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrpo4, ztrdop, zirondep, zpdep |
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| 70 | REAL(wp), ALLOCATABLE, DIMENSION(:,: ) :: zsidep, zwsfep, zironice |
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[3443] | 71 | !!--------------------------------------------------------------------- |
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| 72 | ! |
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[9124] | 73 | IF( ln_timing ) CALL timing_start('p4z_sed') |
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[3443] | 74 | ! |
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[10223] | 75 | IF( kt == nittrc000 .AND. knt == 1 ) THEN |
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| 76 | r1_rday = 1. / rday |
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| 77 | IF (ln_sediment .AND. ln_sed_2way) THEN |
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| 78 | lk_sed = .TRUE. |
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| 79 | ELSE |
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| 80 | lk_sed = .FALSE. |
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| 81 | ENDIF |
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| 82 | ENDIF |
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| 83 | ! |
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[5385] | 84 | IF( kt == nittrc000 .AND. knt == 1 ) r1_rday = 1. / rday |
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[3443] | 85 | ! |
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| 86 | ! Allocate temporary workspace |
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[9125] | 87 | IF( ln_p5z ) ALLOCATE( ztrpo4(jpi,jpj,jpk), ztrdop(jpi,jpj,jpk) ) |
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| 88 | IF( ln_ligand ) ALLOCATE( zwsfep(jpi,jpj) ) |
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[4521] | 89 | |
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[7646] | 90 | |
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[7753] | 91 | zdenit2d(:,:) = 0.e0 |
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| 92 | zbureff (:,:) = 0.e0 |
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[10127] | 93 | zwork (:,:) = 0.e0 |
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[7753] | 94 | zsedsi (:,:) = 0.e0 |
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| 95 | zsedcal (:,:) = 0.e0 |
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| 96 | zsedc (:,:) = 0.e0 |
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[3443] | 97 | |
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[7753] | 98 | |
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[3443] | 99 | ! Iron input/uptake due to sea ice : Crude parameterization based on Lancelot et al. |
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| 100 | ! ---------------------------------------------------- |
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| 101 | IF( ln_ironice ) THEN |
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| 102 | ! |
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[9125] | 103 | ALLOCATE( zironice(jpi,jpj) ) |
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[3443] | 104 | ! |
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| 105 | DO jj = 1, jpj |
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| 106 | DO ji = 1, jpi |
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[6140] | 107 | zdep = rfact2 / e3t_n(ji,jj,1) |
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[4148] | 108 | zwflux = fmmflx(ji,jj) / 1000._wp |
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[5385] | 109 | zfminus = MIN( 0._wp, -zwflux ) * trb(ji,jj,1,jpfer) * zdep |
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[4148] | 110 | zfplus = MAX( 0._wp, -zwflux ) * icefeinput * zdep |
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[3443] | 111 | zironice(ji,jj) = zfplus + zfminus |
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| 112 | END DO |
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| 113 | END DO |
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| 114 | ! |
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[7753] | 115 | tra(:,:,1,jpfer) = tra(:,:,1,jpfer) + zironice(:,:) |
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[4996] | 116 | ! |
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[5385] | 117 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironice" ) ) & |
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[6140] | 118 | & CALL iom_put( "Ironice", zironice(:,:) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! iron flux from ice |
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[4996] | 119 | ! |
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[9125] | 120 | DEALLOCATE( zironice ) |
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[3443] | 121 | ! |
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| 122 | ENDIF |
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| 123 | |
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| 124 | ! Add the external input of nutrients from dust deposition |
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| 125 | ! ---------------------------------------------------------- |
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| 126 | IF( ln_dust ) THEN |
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| 127 | ! |
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[9539] | 128 | ALLOCATE( zsidep(jpi,jpj), zpdep(jpi,jpj,jpk), zirondep(jpi,jpj,jpk) ) |
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[3443] | 129 | ! ! Iron and Si deposition at the surface |
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| 130 | IF( ln_solub ) THEN |
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[7753] | 131 | zirondep(:,:,1) = solub(:,:) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 132 | ELSE |
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[7753] | 133 | zirondep(:,:,1) = dustsolub * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 134 | ENDIF |
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[7753] | 135 | zsidep(:,:) = 8.8 * 0.075 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 28.1 |
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| 136 | zpdep (:,:,1) = 0.1 * 0.021 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 31. / po4r |
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[3443] | 137 | ! ! Iron solubilization of particles in the water column |
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[4529] | 138 | ! ! dust in kg/m2/s ---> 1/55.85 to put in mol/Fe ; wdust in m/j |
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| 139 | zwdust = 0.03 * rday / ( wdust * 55.85 ) / ( 270. * rday ) |
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[3443] | 140 | DO jk = 2, jpkm1 |
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[7753] | 141 | zirondep(:,:,jk) = dust(:,:) * mfrac * zwdust * rfact2 * EXP( -gdept_n(:,:,jk) / 540. ) |
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| 142 | zpdep (:,:,jk) = zirondep(:,:,jk) * 0.023 |
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[3443] | 143 | END DO |
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| 144 | ! ! Iron solubilization of particles in the water column |
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[7753] | 145 | tra(:,:,1,jpsil) = tra(:,:,1,jpsil) + zsidep (:,:) |
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[9539] | 146 | DO jk = 1, jpkm1 |
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| 147 | tra(:,:,jk,jppo4) = tra(:,:,jk,jppo4) + zpdep (:,:,jk) |
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| 148 | tra(:,:,jk,jpfer) = tra(:,:,jk,jpfer) + zirondep(:,:,jk) |
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| 149 | ENDDO |
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[4996] | 150 | ! |
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| 151 | IF( lk_iomput ) THEN |
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[5385] | 152 | IF( knt == nrdttrc ) THEN |
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[4996] | 153 | IF( iom_use( "Irondep" ) ) & |
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[6140] | 154 | & CALL iom_put( "Irondep", zirondep(:,:,1) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! surface downward dust depo of iron |
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[4996] | 155 | IF( iom_use( "pdust" ) ) & |
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| 156 | & CALL iom_put( "pdust" , dust(:,:) / ( wdust * rday ) * tmask(:,:,1) ) ! dust concentration at surface |
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[3443] | 157 | ENDIF |
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| 158 | ENDIF |
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[9539] | 159 | DEALLOCATE( zsidep, zpdep, zirondep ) |
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[3443] | 160 | ! |
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| 161 | ENDIF |
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| 162 | |
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| 163 | ! Add the external input of nutrients from river |
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| 164 | ! ---------------------------------------------------------- |
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| 165 | IF( ln_river ) THEN |
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[5385] | 166 | DO jj = 1, jpj |
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| 167 | DO ji = 1, jpi |
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| 168 | DO jk = 1, nk_rnf(ji,jj) |
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| 169 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + rivdip(ji,jj) * rfact2 |
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| 170 | tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3) + rivdin(ji,jj) * rfact2 |
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| 171 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + rivdic(ji,jj) * 5.e-5 * rfact2 |
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| 172 | tra(ji,jj,jk,jpsil) = tra(ji,jj,jk,jpsil) + rivdsi(ji,jj) * rfact2 |
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| 173 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + rivdic(ji,jj) * rfact2 |
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| 174 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + ( rivalk(ji,jj) - rno3 * rivdin(ji,jj) ) * rfact2 |
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| 175 | ENDDO |
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| 176 | ENDDO |
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| 177 | ENDDO |
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[7646] | 178 | IF( ln_p5z ) THEN |
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| 179 | DO jj = 1, jpj |
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| 180 | DO ji = 1, jpi |
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| 181 | DO jk = 1, nk_rnf(ji,jj) |
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| 182 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + rivdop(ji,jj) * rfact2 |
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| 183 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + rivdon(ji,jj) * rfact2 |
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| 184 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + rivdoc(ji,jj) * rfact2 |
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| 185 | ENDDO |
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| 186 | ENDDO |
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| 187 | ENDDO |
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| 188 | ENDIF |
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[3443] | 189 | ENDIF |
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| 190 | |
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| 191 | ! Add the external input of nutrients from nitrogen deposition |
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| 192 | ! ---------------------------------------------------------- |
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| 193 | IF( ln_ndepo ) THEN |
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[7753] | 194 | tra(:,:,1,jpno3) = tra(:,:,1,jpno3) + nitdep(:,:) * rfact2 |
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| 195 | tra(:,:,1,jptal) = tra(:,:,1,jptal) - rno3 * nitdep(:,:) * rfact2 |
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[3443] | 196 | ENDIF |
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| 197 | |
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| 198 | ! Add the external input of iron from hydrothermal vents |
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| 199 | ! ------------------------------------------------------ |
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| 200 | IF( ln_hydrofe ) THEN |
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[7753] | 201 | tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + hydrofe(:,:,:) * rfact2 |
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[7646] | 202 | IF( ln_ligand ) THEN |
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[7753] | 203 | tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( hydrofe(:,:,:) * fep_rath ) * rfact2 |
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| 204 | tra(:,:,:,jplgw) = tra(:,:,:,jplgw) + ( hydrofe(:,:,:) * lgw_rath ) * rfact2 |
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[7646] | 205 | ENDIF |
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[3443] | 206 | ! |
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[5385] | 207 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "HYDR" ) ) & |
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[3446] | 208 | & CALL iom_put( "HYDR", hydrofe(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! hydrothermal iron input |
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[3443] | 209 | ENDIF |
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| 210 | |
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[7646] | 211 | ! OA: Warning, the following part is necessary to avoid CFL problems above the sediments |
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[4521] | 212 | ! -------------------------------------------------------------------- |
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| 213 | DO jj = 1, jpj |
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| 214 | DO ji = 1, jpi |
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| 215 | ikt = mbkt(ji,jj) |
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[6140] | 216 | zdep = e3t_n(ji,jj,ikt) / xstep |
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[4521] | 217 | zwsbio4(ji,jj) = MIN( 0.99 * zdep, wsbio4(ji,jj,ikt) ) |
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| 218 | zwscal (ji,jj) = MIN( 0.99 * zdep, wscal (ji,jj,ikt) ) |
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| 219 | zwsbio3(ji,jj) = MIN( 0.99 * zdep, wsbio3(ji,jj,ikt) ) |
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| 220 | END DO |
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| 221 | END DO |
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[7646] | 222 | ! |
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| 223 | IF( ln_ligand ) THEN |
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| 224 | DO jj = 1, jpj |
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| 225 | DO ji = 1, jpi |
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| 226 | ikt = mbkt(ji,jj) |
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| 227 | zdep = e3t_n(ji,jj,ikt) / xstep |
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| 228 | zwsfep(ji,jj) = MIN( 0.99 * zdep, wsfep(ji,jj,ikt) ) |
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| 229 | END DO |
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| 230 | ENDDO |
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| 231 | ENDIF |
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[4521] | 232 | |
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[7646] | 233 | IF( .NOT.lk_sed ) THEN |
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[10223] | 234 | ! |
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| 235 | ! Add the external input of iron from sediment mobilization |
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| 236 | ! ------------------------------------------------------ |
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| 237 | IF( ln_ironsed ) THEN |
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| 238 | tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + ironsed(:,:,:) * rfact2 |
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| 239 | IF( ln_ligand ) tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( ironsed(:,:,:) * fep_rats ) * rfact2 |
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| 240 | ! |
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| 241 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironsed" ) ) & |
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| 242 | & CALL iom_put( "Ironsed", ironsed(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! iron inputs from sediments |
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| 243 | ENDIF |
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| 244 | |
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[7646] | 245 | ! Computation of the sediment denitrification proportion: The metamodel from midlleburg (2006) is being used |
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| 246 | ! Computation of the fraction of organic matter that is permanently buried from Dunne's model |
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| 247 | ! ------------------------------------------------------- |
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| 248 | DO jj = 1, jpj |
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| 249 | DO ji = 1, jpi |
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| 250 | IF( tmask(ji,jj,1) == 1 ) THEN |
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| 251 | ikt = mbkt(ji,jj) |
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| 252 | zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & |
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| 253 | & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E3 * 1E6 / 1E4 |
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| 254 | zflx = LOG10( MAX( 1E-3, zflx ) ) |
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| 255 | zo2 = LOG10( MAX( 10. , trb(ji,jj,ikt,jpoxy) * 1E6 ) ) |
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| 256 | zno3 = LOG10( MAX( 1. , trb(ji,jj,ikt,jpno3) * 1E6 * rno3 ) ) |
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| 257 | zdep = LOG10( gdepw_n(ji,jj,ikt+1) ) |
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| 258 | zdenit2d(ji,jj) = -2.2567 - 1.185 * zflx - 0.221 * zflx**2 - 0.3995 * zno3 * zo2 + 1.25 * zno3 & |
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| 259 | & + 0.4721 * zo2 - 0.0996 * zdep + 0.4256 * zflx * zo2 |
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| 260 | zdenit2d(ji,jj) = 10.0**( zdenit2d(ji,jj) ) |
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| 261 | ! |
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| 262 | zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & |
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| 263 | & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E6 |
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| 264 | zbureff(ji,jj) = 0.013 + 0.53 * zflx**2 / ( 7.0 + zflx )**2 |
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[10127] | 265 | ENDIF |
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[7646] | 266 | END DO |
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[10127] | 267 | END DO |
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[7646] | 268 | ! |
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| 269 | ENDIF |
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[3443] | 270 | |
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[4148] | 271 | ! This loss is scaled at each bottom grid cell for equilibrating the total budget of silica in the ocean. |
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| 272 | ! Thus, the amount of silica lost in the sediments equal the supply at the surface (dust+rivers) |
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[3443] | 273 | ! ------------------------------------------------------ |
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[10127] | 274 | IF( .NOT.lk_sed ) zrivsil = 1._wp - sedsilfrac |
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[3443] | 275 | |
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| 276 | DO jj = 1, jpj |
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| 277 | DO ji = 1, jpi |
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| 278 | ikt = mbkt(ji,jj) |
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[6140] | 279 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[4521] | 280 | zwsc = zwscal (ji,jj) * zdep |
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[5385] | 281 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 282 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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[3443] | 283 | ! |
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[5385] | 284 | tra(ji,jj,ikt,jpgsi) = tra(ji,jj,ikt,jpgsi) - zsiloss |
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| 285 | tra(ji,jj,ikt,jpcal) = tra(ji,jj,ikt,jpcal) - zcaloss |
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[3443] | 286 | END DO |
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| 287 | END DO |
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[7646] | 288 | ! |
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| 289 | IF( .NOT.lk_sed ) THEN |
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| 290 | DO jj = 1, jpj |
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| 291 | DO ji = 1, jpi |
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| 292 | ikt = mbkt(ji,jj) |
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| 293 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 294 | zwsc = zwscal (ji,jj) * zdep |
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| 295 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 296 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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| 297 | tra(ji,jj,ikt,jpsil) = tra(ji,jj,ikt,jpsil) + zsiloss * zrivsil |
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| 298 | ! |
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| 299 | zfactcal = MIN( excess(ji,jj,ikt), 0.2 ) |
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| 300 | zfactcal = MIN( 1., 1.3 * ( 0.2 - zfactcal ) / ( 0.4 - zfactcal ) ) |
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[10127] | 301 | zrivalk = sedcalfrac * zfactcal |
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[7646] | 302 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + zcaloss * zrivalk * 2.0 |
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| 303 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zcaloss * zrivalk |
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[8533] | 304 | zsedcal(ji,jj) = (1.0 - zrivalk) * zcaloss * e3t_n(ji,jj,ikt) |
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| 305 | zsedsi (ji,jj) = (1.0 - zrivsil) * zsiloss * e3t_n(ji,jj,ikt) |
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[7646] | 306 | END DO |
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| 307 | END DO |
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| 308 | ENDIF |
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| 309 | ! |
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[3443] | 310 | DO jj = 1, jpj |
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| 311 | DO ji = 1, jpi |
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[5385] | 312 | ikt = mbkt(ji,jj) |
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[6140] | 313 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[4521] | 314 | zws4 = zwsbio4(ji,jj) * zdep |
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| 315 | zws3 = zwsbio3(ji,jj) * zdep |
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[5385] | 316 | tra(ji,jj,ikt,jpgoc) = tra(ji,jj,ikt,jpgoc) - trb(ji,jj,ikt,jpgoc) * zws4 |
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| 317 | tra(ji,jj,ikt,jppoc) = tra(ji,jj,ikt,jppoc) - trb(ji,jj,ikt,jppoc) * zws3 |
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| 318 | tra(ji,jj,ikt,jpbfe) = tra(ji,jj,ikt,jpbfe) - trb(ji,jj,ikt,jpbfe) * zws4 |
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| 319 | tra(ji,jj,ikt,jpsfe) = tra(ji,jj,ikt,jpsfe) - trb(ji,jj,ikt,jpsfe) * zws3 |
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[3443] | 320 | END DO |
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| 321 | END DO |
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[7646] | 322 | ! |
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| 323 | IF( ln_ligand ) THEN |
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| 324 | DO jj = 1, jpj |
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| 325 | DO ji = 1, jpi |
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| 326 | ikt = mbkt(ji,jj) |
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| 327 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 328 | zwssfep = zwsfep(ji,jj) * zdep |
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| 329 | tra(ji,jj,ikt,jpfep) = tra(ji,jj,ikt,jpfep) - trb(ji,jj,ikt,jpfep) * zwssfep |
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| 330 | END DO |
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| 331 | END DO |
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| 332 | ENDIF |
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| 333 | ! |
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| 334 | IF( ln_p5z ) THEN |
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| 335 | DO jj = 1, jpj |
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| 336 | DO ji = 1, jpi |
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| 337 | ikt = mbkt(ji,jj) |
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| 338 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 339 | zws4 = zwsbio4(ji,jj) * zdep |
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| 340 | zws3 = zwsbio3(ji,jj) * zdep |
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| 341 | tra(ji,jj,ikt,jpgon) = tra(ji,jj,ikt,jpgon) - trb(ji,jj,ikt,jpgon) * zws4 |
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| 342 | tra(ji,jj,ikt,jppon) = tra(ji,jj,ikt,jppon) - trb(ji,jj,ikt,jppon) * zws3 |
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| 343 | tra(ji,jj,ikt,jpgop) = tra(ji,jj,ikt,jpgop) - trb(ji,jj,ikt,jpgop) * zws4 |
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| 344 | tra(ji,jj,ikt,jppop) = tra(ji,jj,ikt,jppop) - trb(ji,jj,ikt,jppop) * zws3 |
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| 345 | END DO |
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| 346 | END DO |
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| 347 | ENDIF |
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[3443] | 348 | |
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[7646] | 349 | IF( .NOT.lk_sed ) THEN |
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[8533] | 350 | ! The 0.5 factor in zpdenit is to avoid negative NO3 concentration after |
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| 351 | ! denitrification in the sediments. Not very clever, but simpliest option. |
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[7646] | 352 | DO jj = 1, jpj |
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| 353 | DO ji = 1, jpi |
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| 354 | ikt = mbkt(ji,jj) |
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| 355 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 356 | zws4 = zwsbio4(ji,jj) * zdep |
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| 357 | zws3 = zwsbio3(ji,jj) * zdep |
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| 358 | zrivno3 = 1. - zbureff(ji,jj) |
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| 359 | zwstpoc = trb(ji,jj,ikt,jpgoc) * zws4 + trb(ji,jj,ikt,jppoc) * zws3 |
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| 360 | zpdenit = MIN( 0.5 * ( trb(ji,jj,ikt,jpno3) - rtrn ) / rdenit, zdenit2d(ji,jj) * zwstpoc * zrivno3 ) |
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| 361 | z1pdenit = zwstpoc * zrivno3 - zpdenit |
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| 362 | zolimit = MIN( ( trb(ji,jj,ikt,jpoxy) - rtrn ) / o2ut, z1pdenit * ( 1.- nitrfac(ji,jj,ikt) ) ) |
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[8533] | 363 | tra(ji,jj,ikt,jpdoc) = tra(ji,jj,ikt,jpdoc) + z1pdenit - zolimit |
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| 364 | tra(ji,jj,ikt,jppo4) = tra(ji,jj,ikt,jppo4) + zpdenit + zolimit |
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| 365 | tra(ji,jj,ikt,jpnh4) = tra(ji,jj,ikt,jpnh4) + zpdenit + zolimit |
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| 366 | tra(ji,jj,ikt,jpno3) = tra(ji,jj,ikt,jpno3) - rdenit * zpdenit |
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[7646] | 367 | tra(ji,jj,ikt,jpoxy) = tra(ji,jj,ikt,jpoxy) - zolimit * o2ut |
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[8533] | 368 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + rno3 * (zolimit + (1.+rdenit) * zpdenit ) |
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| 369 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zpdenit + zolimit |
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[7646] | 370 | sdenit(ji,jj) = rdenit * zpdenit * e3t_n(ji,jj,ikt) |
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[8533] | 371 | zsedc(ji,jj) = (1. - zrivno3) * zwstpoc * e3t_n(ji,jj,ikt) |
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[7646] | 372 | IF( ln_p5z ) THEN |
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| 373 | zwstpop = trb(ji,jj,ikt,jpgop) * zws4 + trb(ji,jj,ikt,jppop) * zws3 |
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| 374 | zwstpon = trb(ji,jj,ikt,jpgon) * zws4 + trb(ji,jj,ikt,jppon) * zws3 |
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[8541] | 375 | tra(ji,jj,ikt,jpdon) = tra(ji,jj,ikt,jpdon) + ( z1pdenit - zolimit ) * zwstpon / (zwstpoc + rtrn) |
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| 376 | tra(ji,jj,ikt,jpdop) = tra(ji,jj,ikt,jpdop) + ( z1pdenit - zolimit ) * zwstpop / (zwstpoc + rtrn) |
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[7646] | 377 | ENDIF |
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| 378 | END DO |
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| 379 | END DO |
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| 380 | ENDIF |
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| 381 | |
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| 382 | |
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[3443] | 383 | ! Nitrogen fixation process |
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[4529] | 384 | ! Small source iron from particulate inorganic iron |
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[3443] | 385 | !----------------------------------- |
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| 386 | DO jk = 1, jpkm1 |
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[7753] | 387 | zlight (:,:,jk) = ( 1.- EXP( -etot_ndcy(:,:,jk) / diazolight ) ) * ( 1. - fr_i(:,:) ) |
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| 388 | zsoufer(:,:,jk) = zlight(:,:,jk) * 2E-11 / ( 2E-11 + biron(:,:,jk) ) |
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[7646] | 389 | ENDDO |
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| 390 | IF( ln_p4z ) THEN |
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| 391 | DO jk = 1, jpkm1 |
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| 392 | DO jj = 1, jpj |
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| 393 | DO ji = 1, jpi |
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| 394 | ! ! Potential nitrogen fixation dependant on temperature and iron |
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| 395 | zlim = ( 1.- xnanono3(ji,jj,jk) - xnanonh4(ji,jj,jk) ) |
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| 396 | IF( zlim <= 0.2 ) zlim = 0.01 |
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| 397 | zfact = zlim * rfact2 |
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| 398 | |
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| 399 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
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| 400 | ztrpo4s = trb (ji,jj,jk,jppo4) / ( concnnh4 + trb (ji,jj,jk,jppo4) ) |
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| 401 | nitrpot(ji,jj,jk) = MAX( 0.e0, ( 0.6 * tgfunc(ji,jj,jk) - 2.15 ) * r1_rday ) & |
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| 402 | & * zfact * MIN( ztrfer, ztrpo4s ) * zlight(ji,jj,jk) |
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| 403 | END DO |
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[3443] | 404 | END DO |
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| 405 | END DO |
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[7646] | 406 | ELSE ! p5z |
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| 407 | DO jk = 1, jpkm1 |
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| 408 | DO jj = 1, jpj |
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| 409 | DO ji = 1, jpi |
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| 410 | ! ! Potential nitrogen fixation dependant on temperature and iron |
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| 411 | ztemp = tsn(ji,jj,jk,jp_tem) |
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| 412 | zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 |
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| 413 | ! Potential nitrogen fixation dependant on temperature and iron |
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| 414 | xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) |
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| 415 | xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) |
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| 416 | zlim = ( 1.- xdiano3 - xdianh4 ) |
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| 417 | IF( zlim <= 0.1 ) zlim = 0.01 |
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| 418 | zfact = zlim * rfact2 |
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| 419 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
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| 420 | ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) |
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| 421 | ztrdop(ji,jj,jk) = trb(ji,jj,jk,jpdop) / ( 1E-6 + trb(ji,jj,jk,jpdop) ) * (1. - ztrpo4(ji,jj,jk)) |
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| 422 | ztrdp = ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) |
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| 423 | nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) |
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| 424 | END DO |
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| 425 | END DO |
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| 426 | END DO |
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| 427 | ENDIF |
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[3496] | 428 | |
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[3443] | 429 | ! Nitrogen change due to nitrogen fixation |
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| 430 | ! ---------------------------------------- |
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[7646] | 431 | IF( ln_p4z ) THEN |
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| 432 | DO jk = 1, jpkm1 |
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| 433 | DO jj = 1, jpj |
---|
| 434 | DO ji = 1, jpi |
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| 435 | zfact = nitrpot(ji,jj,jk) * nitrfix |
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| 436 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact |
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| 437 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact |
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| 438 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + o2nit * zfact |
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| 439 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + concdnh4 / ( concdnh4 + trb(ji,jj,jk,jppo4) ) & |
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| 440 | & * 0.002 * trb(ji,jj,jk,jpdoc) * xstep |
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| 441 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * xstep |
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| 442 | END DO |
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| 443 | END DO |
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| 444 | END DO |
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| 445 | ELSE ! p5z |
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| 446 | DO jk = 1, jpkm1 |
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| 447 | DO jj = 1, jpj |
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| 448 | DO ji = 1, jpi |
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| 449 | zfact = nitrpot(ji,jj,jk) * nitrfix |
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| 450 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 |
---|
| 451 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 |
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| 452 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - 16.0 / 46.0 * zfact * ( 1.0 - 1.0 / 3.0 ) & |
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| 453 | & * ztrpo4(ji,jj,jk) / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
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| 454 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + zfact * 1.0 / 3.0 |
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| 455 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 |
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| 456 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + 16.0 / 46.0 * zfact / 3.0 & |
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| 457 | & - 16.0 / 46.0 * zfact * ztrdop(ji,jj,jk) & |
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| 458 | & / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
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| 459 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 |
---|
| 460 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zfact * 1.0 / 3.0 * 2.0 /3.0 |
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| 461 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 2.0 /3.0 |
---|
| 462 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 |
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| 463 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zfact * 1.0 / 3.0 * 1.0 /3.0 |
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| 464 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 1.0 /3.0 |
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| 465 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + ( o2ut + o2nit ) * zfact * 2.0 / 3.0 + o2nit * zfact / 3.0 |
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| 466 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 |
---|
| 467 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + 30E-6 * zfact * 1.0 / 3.0 * 2.0 / 3.0 |
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| 468 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + 30E-6 * zfact * 1.0 / 3.0 * 1.0 / 3.0 |
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| 469 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday |
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| 470 | END DO |
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| 471 | END DO |
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| 472 | END DO |
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| 473 | ! |
---|
| 474 | ENDIF |
---|
[4529] | 475 | |
---|
[4996] | 476 | IF( lk_iomput ) THEN |
---|
[5385] | 477 | IF( knt == nrdttrc ) THEN |
---|
[8533] | 478 | zfact = 1.e+3 * rfact2r ! conversion from molC/l/kt to molN/m3/s |
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| 479 | IF( iom_use("Nfix" ) ) CALL iom_put( "Nfix", nitrpot(:,:,:) * nitrfix * rno3 * zfact * tmask(:,:,:) ) ! nitrogen fixation |
---|
[4996] | 480 | IF( iom_use("INTNFIX") ) THEN ! nitrogen fixation rate in ocean ( vertically integrated ) |
---|
[10127] | 481 | zwork(:,:) = 0. |
---|
[4996] | 482 | DO jk = 1, jpkm1 |
---|
[10127] | 483 | zwork(:,:) = zwork(:,:) + nitrpot(:,:,jk) * nitrfix * rno3 * zfact * e3t_n(:,:,jk) * tmask(:,:,jk) |
---|
[4996] | 484 | ENDDO |
---|
[10127] | 485 | CALL iom_put( "INTNFIX" , zwork ) |
---|
[3751] | 486 | ENDIF |
---|
[8533] | 487 | IF( iom_use("SedCal" ) ) CALL iom_put( "SedCal", zsedcal(:,:) * zfact ) |
---|
| 488 | IF( iom_use("SedSi" ) ) CALL iom_put( "SedSi", zsedsi (:,:) * zfact ) |
---|
| 489 | IF( iom_use("SedC" ) ) CALL iom_put( "SedC", zsedc (:,:) * zfact ) |
---|
| 490 | IF( iom_use("Sdenit" ) ) CALL iom_put( "Sdenit", sdenit (:,:) * zfact * rno3 ) |
---|
[3443] | 491 | ENDIF |
---|
| 492 | ENDIF |
---|
| 493 | ! |
---|
| 494 | IF(ln_ctl) THEN ! print mean trends (USEd for debugging) |
---|
| 495 | WRITE(charout, fmt="('sed ')") |
---|
| 496 | CALL prt_ctl_trc_info(charout) |
---|
[5385] | 497 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
[3443] | 498 | ENDIF |
---|
| 499 | ! |
---|
[9125] | 500 | IF( ln_p5z ) DEALLOCATE( ztrpo4, ztrdop ) |
---|
| 501 | IF( ln_ligand ) DEALLOCATE( zwsfep ) |
---|
[3443] | 502 | ! |
---|
[9124] | 503 | IF( ln_timing ) CALL timing_stop('p4z_sed') |
---|
[3443] | 504 | ! |
---|
| 505 | END SUBROUTINE p4z_sed |
---|
| 506 | |
---|
[5385] | 507 | |
---|
| 508 | INTEGER FUNCTION p4z_sed_alloc() |
---|
| 509 | !!---------------------------------------------------------------------- |
---|
| 510 | !! *** ROUTINE p4z_sed_alloc *** |
---|
| 511 | !!---------------------------------------------------------------------- |
---|
| 512 | ALLOCATE( nitrpot(jpi,jpj,jpk), sdenit(jpi,jpj), STAT=p4z_sed_alloc ) |
---|
| 513 | ! |
---|
| 514 | IF( p4z_sed_alloc /= 0 ) CALL ctl_warn('p4z_sed_alloc: failed to allocate arrays') |
---|
| 515 | ! |
---|
| 516 | END FUNCTION p4z_sed_alloc |
---|
| 517 | |
---|
[3443] | 518 | !!====================================================================== |
---|
[5656] | 519 | END MODULE p4zsed |
---|