[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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[9570] | 16 | USE p4zice ! 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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| 19 | USE iom ! I/O manager |
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| 20 | USE prtctl_trc ! print control for debugging |
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| 21 | |
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| 22 | IMPLICIT NONE |
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| 23 | PRIVATE |
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| 24 | |
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[5385] | 25 | PUBLIC p4z_sed |
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| 26 | PUBLIC p4z_sed_alloc |
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| 27 | |
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| 28 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: nitrpot !: Nitrogen fixation |
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| 29 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,: ) :: sdenit !: Nitrate reduction in the sediments |
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[3443] | 30 | REAL(wp) :: r1_rday !: inverse of rday |
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| 31 | |
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| 32 | !!---------------------------------------------------------------------- |
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| 33 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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[7753] | 34 | !! $Id$ |
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[3443] | 35 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | CONTAINS |
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| 38 | |
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[5385] | 39 | SUBROUTINE p4z_sed( kt, knt ) |
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[3443] | 40 | !!--------------------------------------------------------------------- |
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| 41 | !! *** ROUTINE p4z_sed *** |
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| 42 | !! |
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| 43 | !! ** Purpose : Compute loss of organic matter in the sediments. This |
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| 44 | !! is by no way a sediment model. The loss is simply |
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| 45 | !! computed to balance the inout from rivers and dust |
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| 46 | !! |
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| 47 | !! ** Method : - ??? |
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| 48 | !!--------------------------------------------------------------------- |
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| 49 | ! |
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[5385] | 50 | INTEGER, INTENT(in) :: kt, knt ! ocean time step |
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[3443] | 51 | INTEGER :: ji, jj, jk, ikt |
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| 52 | REAL(wp) :: zsumsedsi, zsumsedpo4, zsumsedcal |
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| 53 | REAL(wp) :: zrivalk, zrivsil, zrivno3 |
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| 54 | REAL(wp) :: zwflux, zfminus, zfplus |
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| 55 | REAL(wp) :: zlim, zfact, zfactcal |
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[8533] | 56 | REAL(wp) :: zo2, zno3, zflx, zpdenit, z1pdenit, zolimit |
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[7646] | 57 | REAL(wp) :: zsiloss, zcaloss, zws3, zws4, zwsc, zdep |
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| 58 | REAL(wp) :: zwstpoc, zwstpon, zwstpop |
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| 59 | REAL(wp) :: ztrfer, ztrpo4s, ztrdp, zwdust, zmudia, ztemp |
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| 60 | REAL(wp) :: xdiano3, xdianh4 |
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| 61 | REAL(wp) :: zwssfep |
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[3531] | 62 | ! |
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[3443] | 63 | CHARACTER (len=25) :: charout |
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[9125] | 64 | REAL(wp), DIMENSION(jpi,jpj ) :: zwork1, zwork2, zwork3 |
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| 65 | REAL(wp), DIMENSION(jpi,jpj ) :: zdenit2d, zbureff |
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| 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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[5385] | 75 | IF( kt == nittrc000 .AND. knt == 1 ) r1_rday = 1. / rday |
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[3443] | 76 | ! |
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| 77 | ! Allocate temporary workspace |
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[9125] | 78 | IF( ln_p5z ) ALLOCATE( ztrpo4(jpi,jpj,jpk), ztrdop(jpi,jpj,jpk) ) |
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| 79 | IF( ln_ligand ) ALLOCATE( zwsfep(jpi,jpj) ) |
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[4521] | 80 | |
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[7646] | 81 | |
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[7753] | 82 | zdenit2d(:,:) = 0.e0 |
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| 83 | zbureff (:,:) = 0.e0 |
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| 84 | zwork1 (:,:) = 0.e0 |
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| 85 | zwork2 (:,:) = 0.e0 |
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| 86 | zwork3 (:,:) = 0.e0 |
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| 87 | zsedsi (:,:) = 0.e0 |
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| 88 | zsedcal (:,:) = 0.e0 |
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| 89 | zsedc (:,:) = 0.e0 |
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[3443] | 90 | |
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[7753] | 91 | |
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[3443] | 92 | ! Iron input/uptake due to sea ice : Crude parameterization based on Lancelot et al. |
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| 93 | ! ---------------------------------------------------- |
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| 94 | IF( ln_ironice ) THEN |
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| 95 | ! |
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[9125] | 96 | ALLOCATE( zironice(jpi,jpj) ) |
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[3443] | 97 | ! |
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| 98 | DO jj = 1, jpj |
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| 99 | DO ji = 1, jpi |
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[6140] | 100 | zdep = rfact2 / e3t_n(ji,jj,1) |
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[4148] | 101 | zwflux = fmmflx(ji,jj) / 1000._wp |
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[5385] | 102 | zfminus = MIN( 0._wp, -zwflux ) * trb(ji,jj,1,jpfer) * zdep |
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[4148] | 103 | zfplus = MAX( 0._wp, -zwflux ) * icefeinput * zdep |
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[3443] | 104 | zironice(ji,jj) = zfplus + zfminus |
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| 105 | END DO |
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| 106 | END DO |
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| 107 | ! |
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[7753] | 108 | tra(:,:,1,jpfer) = tra(:,:,1,jpfer) + zironice(:,:) |
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[4996] | 109 | ! |
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[5385] | 110 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironice" ) ) & |
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[6140] | 111 | & CALL iom_put( "Ironice", zironice(:,:) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! iron flux from ice |
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[4996] | 112 | ! |
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[9125] | 113 | DEALLOCATE( zironice ) |
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[3443] | 114 | ! |
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| 115 | ENDIF |
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| 116 | |
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| 117 | ! Add the external input of nutrients from dust deposition |
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| 118 | ! ---------------------------------------------------------- |
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| 119 | IF( ln_dust ) THEN |
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| 120 | ! |
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[9539] | 121 | ALLOCATE( zsidep(jpi,jpj), zpdep(jpi,jpj,jpk), zirondep(jpi,jpj,jpk) ) |
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[3443] | 122 | ! ! Iron and Si deposition at the surface |
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| 123 | IF( ln_solub ) THEN |
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[7753] | 124 | zirondep(:,:,1) = solub(:,:) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 125 | ELSE |
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[7753] | 126 | zirondep(:,:,1) = dustsolub * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 127 | ENDIF |
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[7753] | 128 | zsidep(:,:) = 8.8 * 0.075 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 28.1 |
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| 129 | zpdep (:,:,1) = 0.1 * 0.021 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 31. / po4r |
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[3443] | 130 | ! ! Iron solubilization of particles in the water column |
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[4529] | 131 | ! ! dust in kg/m2/s ---> 1/55.85 to put in mol/Fe ; wdust in m/j |
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| 132 | zwdust = 0.03 * rday / ( wdust * 55.85 ) / ( 270. * rday ) |
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[3443] | 133 | DO jk = 2, jpkm1 |
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[7753] | 134 | zirondep(:,:,jk) = dust(:,:) * mfrac * zwdust * rfact2 * EXP( -gdept_n(:,:,jk) / 540. ) |
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| 135 | zpdep (:,:,jk) = zirondep(:,:,jk) * 0.023 |
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[3443] | 136 | END DO |
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| 137 | ! ! Iron solubilization of particles in the water column |
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[7753] | 138 | tra(:,:,1,jpsil) = tra(:,:,1,jpsil) + zsidep (:,:) |
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[9539] | 139 | DO jk = 1, jpkm1 |
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| 140 | tra(:,:,jk,jppo4) = tra(:,:,jk,jppo4) + zpdep (:,:,jk) |
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| 141 | tra(:,:,jk,jpfer) = tra(:,:,jk,jpfer) + zirondep(:,:,jk) |
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| 142 | ENDDO |
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[4996] | 143 | ! |
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| 144 | IF( lk_iomput ) THEN |
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[5385] | 145 | IF( knt == nrdttrc ) THEN |
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[4996] | 146 | IF( iom_use( "Irondep" ) ) & |
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[6140] | 147 | & 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] | 148 | IF( iom_use( "pdust" ) ) & |
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| 149 | & CALL iom_put( "pdust" , dust(:,:) / ( wdust * rday ) * tmask(:,:,1) ) ! dust concentration at surface |
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[3443] | 150 | ENDIF |
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| 151 | ENDIF |
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[9539] | 152 | DEALLOCATE( zsidep, zpdep, zirondep ) |
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[3443] | 153 | ! |
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| 154 | ENDIF |
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| 155 | |
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| 156 | ! Add the external input of nutrients from river |
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| 157 | ! ---------------------------------------------------------- |
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| 158 | IF( ln_river ) THEN |
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[5385] | 159 | DO jj = 1, jpj |
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| 160 | DO ji = 1, jpi |
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| 161 | DO jk = 1, nk_rnf(ji,jj) |
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| 162 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + rivdip(ji,jj) * rfact2 |
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| 163 | tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3) + rivdin(ji,jj) * rfact2 |
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| 164 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + rivdic(ji,jj) * 5.e-5 * rfact2 |
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| 165 | tra(ji,jj,jk,jpsil) = tra(ji,jj,jk,jpsil) + rivdsi(ji,jj) * rfact2 |
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| 166 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + rivdic(ji,jj) * rfact2 |
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| 167 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + ( rivalk(ji,jj) - rno3 * rivdin(ji,jj) ) * rfact2 |
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| 168 | ENDDO |
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| 169 | ENDDO |
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| 170 | ENDDO |
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[7646] | 171 | IF( ln_p5z ) THEN |
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| 172 | DO jj = 1, jpj |
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| 173 | DO ji = 1, jpi |
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| 174 | DO jk = 1, nk_rnf(ji,jj) |
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| 175 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + rivdop(ji,jj) * rfact2 |
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| 176 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + rivdon(ji,jj) * rfact2 |
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| 177 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + rivdoc(ji,jj) * rfact2 |
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| 178 | ENDDO |
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| 179 | ENDDO |
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| 180 | ENDDO |
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| 181 | ENDIF |
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[3443] | 182 | ENDIF |
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| 183 | |
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| 184 | ! Add the external input of nutrients from nitrogen deposition |
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| 185 | ! ---------------------------------------------------------- |
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| 186 | IF( ln_ndepo ) THEN |
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[7753] | 187 | tra(:,:,1,jpno3) = tra(:,:,1,jpno3) + nitdep(:,:) * rfact2 |
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| 188 | tra(:,:,1,jptal) = tra(:,:,1,jptal) - rno3 * nitdep(:,:) * rfact2 |
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[3443] | 189 | ENDIF |
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| 190 | |
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| 191 | ! Add the external input of iron from sediment mobilization |
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| 192 | ! ------------------------------------------------------ |
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| 193 | IF( ln_ironsed ) THEN |
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[7753] | 194 | tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + ironsed(:,:,:) * rfact2 |
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| 195 | IF( ln_ligand ) tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( ironsed(:,:,:) * fep_rats ) * rfact2 |
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[3443] | 196 | ! |
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[5385] | 197 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironsed" ) ) & |
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[3446] | 198 | & CALL iom_put( "Ironsed", ironsed(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! iron inputs from sediments |
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[3443] | 199 | ENDIF |
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| 200 | |
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| 201 | ! Add the external input of iron from hydrothermal vents |
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| 202 | ! ------------------------------------------------------ |
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| 203 | IF( ln_hydrofe ) THEN |
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[7753] | 204 | tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + hydrofe(:,:,:) * rfact2 |
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[7646] | 205 | IF( ln_ligand ) THEN |
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[7753] | 206 | tra(:,:,:,jpfep) = tra(:,:,:,jpfep) + ( hydrofe(:,:,:) * fep_rath ) * rfact2 |
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| 207 | tra(:,:,:,jplgw) = tra(:,:,:,jplgw) + ( hydrofe(:,:,:) * lgw_rath ) * rfact2 |
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[7646] | 208 | ENDIF |
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[3443] | 209 | ! |
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[5385] | 210 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "HYDR" ) ) & |
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[3446] | 211 | & CALL iom_put( "HYDR", hydrofe(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! hydrothermal iron input |
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[3443] | 212 | ENDIF |
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| 213 | |
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[7646] | 214 | ! OA: Warning, the following part is necessary to avoid CFL problems above the sediments |
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[4521] | 215 | ! -------------------------------------------------------------------- |
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| 216 | DO jj = 1, jpj |
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| 217 | DO ji = 1, jpi |
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| 218 | ikt = mbkt(ji,jj) |
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[6140] | 219 | zdep = e3t_n(ji,jj,ikt) / xstep |
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[4521] | 220 | zwsbio4(ji,jj) = MIN( 0.99 * zdep, wsbio4(ji,jj,ikt) ) |
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| 221 | zwscal (ji,jj) = MIN( 0.99 * zdep, wscal (ji,jj,ikt) ) |
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| 222 | zwsbio3(ji,jj) = MIN( 0.99 * zdep, wsbio3(ji,jj,ikt) ) |
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| 223 | END DO |
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| 224 | END DO |
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[7646] | 225 | ! |
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| 226 | IF( ln_ligand ) THEN |
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| 227 | DO jj = 1, jpj |
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| 228 | DO ji = 1, jpi |
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| 229 | ikt = mbkt(ji,jj) |
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| 230 | zdep = e3t_n(ji,jj,ikt) / xstep |
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| 231 | zwsfep(ji,jj) = MIN( 0.99 * zdep, wsfep(ji,jj,ikt) ) |
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| 232 | END DO |
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| 233 | ENDDO |
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| 234 | ENDIF |
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[4521] | 235 | |
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[7646] | 236 | IF( .NOT.lk_sed ) THEN |
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| 237 | ! Computation of the sediment denitrification proportion: The metamodel from midlleburg (2006) is being used |
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| 238 | ! Computation of the fraction of organic matter that is permanently buried from Dunne's model |
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| 239 | ! ------------------------------------------------------- |
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| 240 | DO jj = 1, jpj |
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| 241 | DO ji = 1, jpi |
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| 242 | IF( tmask(ji,jj,1) == 1 ) THEN |
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| 243 | ikt = mbkt(ji,jj) |
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| 244 | zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & |
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| 245 | & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E3 * 1E6 / 1E4 |
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| 246 | zflx = LOG10( MAX( 1E-3, zflx ) ) |
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| 247 | zo2 = LOG10( MAX( 10. , trb(ji,jj,ikt,jpoxy) * 1E6 ) ) |
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| 248 | zno3 = LOG10( MAX( 1. , trb(ji,jj,ikt,jpno3) * 1E6 * rno3 ) ) |
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| 249 | zdep = LOG10( gdepw_n(ji,jj,ikt+1) ) |
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| 250 | zdenit2d(ji,jj) = -2.2567 - 1.185 * zflx - 0.221 * zflx**2 - 0.3995 * zno3 * zo2 + 1.25 * zno3 & |
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| 251 | & + 0.4721 * zo2 - 0.0996 * zdep + 0.4256 * zflx * zo2 |
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| 252 | zdenit2d(ji,jj) = 10.0**( zdenit2d(ji,jj) ) |
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| 253 | ! |
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| 254 | zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & |
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| 255 | & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E6 |
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| 256 | zbureff(ji,jj) = 0.013 + 0.53 * zflx**2 / ( 7.0 + zflx )**2 |
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| 257 | ENDIF |
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| 258 | END DO |
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| 259 | END DO |
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[4529] | 260 | |
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[7646] | 261 | ! Loss of biogenic silicon, Caco3 organic carbon in the sediments. |
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| 262 | ! First, the total loss is computed. |
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| 263 | ! The factor for calcite comes from the alkalinity effect |
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| 264 | ! ------------------------------------------------------------- |
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| 265 | DO jj = 1, jpj |
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| 266 | DO ji = 1, jpi |
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| 267 | IF( tmask(ji,jj,1) == 1 ) THEN |
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| 268 | ikt = mbkt(ji,jj) |
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| 269 | zwork1(ji,jj) = trb(ji,jj,ikt,jpgsi) * zwsbio4(ji,jj) |
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| 270 | zwork2(ji,jj) = trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) |
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| 271 | ! For calcite, burial efficiency is made a function of saturation |
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| 272 | zfactcal = MIN( excess(ji,jj,ikt), 0.2 ) |
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| 273 | zfactcal = MIN( 1., 1.3 * ( 0.2 - zfactcal ) / ( 0.4 - zfactcal ) ) |
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| 274 | zwork3(ji,jj) = trb(ji,jj,ikt,jpcal) * zwscal(ji,jj) * 2.e0 * zfactcal |
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| 275 | ENDIF |
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| 276 | END DO |
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[3443] | 277 | END DO |
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[7646] | 278 | zsumsedsi = glob_sum( zwork1(:,:) * e1e2t(:,:) ) * r1_rday |
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| 279 | zsumsedpo4 = glob_sum( zwork2(:,:) * e1e2t(:,:) ) * r1_rday |
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| 280 | zsumsedcal = glob_sum( zwork3(:,:) * e1e2t(:,:) ) * r1_rday |
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| 281 | ! |
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| 282 | ENDIF |
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[3443] | 283 | |
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[4148] | 284 | ! This loss is scaled at each bottom grid cell for equilibrating the total budget of silica in the ocean. |
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| 285 | ! Thus, the amount of silica lost in the sediments equal the supply at the surface (dust+rivers) |
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[3443] | 286 | ! ------------------------------------------------------ |
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[7646] | 287 | IF( .NOT.lk_sed ) zrivsil = 1._wp - ( sumdepsi + rivdsiinput * r1_ryyss ) / ( zsumsedsi + rtrn ) |
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[3443] | 288 | |
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| 289 | DO jj = 1, jpj |
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| 290 | DO ji = 1, jpi |
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| 291 | ikt = mbkt(ji,jj) |
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[6140] | 292 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[4521] | 293 | zwsc = zwscal (ji,jj) * zdep |
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[5385] | 294 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 295 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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[3443] | 296 | ! |
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[5385] | 297 | tra(ji,jj,ikt,jpgsi) = tra(ji,jj,ikt,jpgsi) - zsiloss |
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| 298 | tra(ji,jj,ikt,jpcal) = tra(ji,jj,ikt,jpcal) - zcaloss |
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[3443] | 299 | END DO |
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| 300 | END DO |
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[7646] | 301 | ! |
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| 302 | IF( .NOT.lk_sed ) THEN |
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| 303 | DO jj = 1, jpj |
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| 304 | DO ji = 1, jpi |
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| 305 | ikt = mbkt(ji,jj) |
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| 306 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 307 | zwsc = zwscal (ji,jj) * zdep |
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| 308 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 309 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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| 310 | tra(ji,jj,ikt,jpsil) = tra(ji,jj,ikt,jpsil) + zsiloss * zrivsil |
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| 311 | ! |
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| 312 | zfactcal = MIN( excess(ji,jj,ikt), 0.2 ) |
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| 313 | zfactcal = MIN( 1., 1.3 * ( 0.2 - zfactcal ) / ( 0.4 - zfactcal ) ) |
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| 314 | zrivalk = 1._wp - ( rivalkinput * r1_ryyss ) * zfactcal / ( zsumsedcal + rtrn ) |
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| 315 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + zcaloss * zrivalk * 2.0 |
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| 316 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zcaloss * zrivalk |
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[8533] | 317 | zsedcal(ji,jj) = (1.0 - zrivalk) * zcaloss * e3t_n(ji,jj,ikt) |
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| 318 | zsedsi (ji,jj) = (1.0 - zrivsil) * zsiloss * e3t_n(ji,jj,ikt) |
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[7646] | 319 | END DO |
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| 320 | END DO |
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| 321 | ENDIF |
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| 322 | ! |
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[3443] | 323 | DO jj = 1, jpj |
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| 324 | DO ji = 1, jpi |
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[5385] | 325 | ikt = mbkt(ji,jj) |
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[6140] | 326 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[4521] | 327 | zws4 = zwsbio4(ji,jj) * zdep |
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| 328 | zws3 = zwsbio3(ji,jj) * zdep |
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[5385] | 329 | tra(ji,jj,ikt,jpgoc) = tra(ji,jj,ikt,jpgoc) - trb(ji,jj,ikt,jpgoc) * zws4 |
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| 330 | tra(ji,jj,ikt,jppoc) = tra(ji,jj,ikt,jppoc) - trb(ji,jj,ikt,jppoc) * zws3 |
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| 331 | tra(ji,jj,ikt,jpbfe) = tra(ji,jj,ikt,jpbfe) - trb(ji,jj,ikt,jpbfe) * zws4 |
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| 332 | tra(ji,jj,ikt,jpsfe) = tra(ji,jj,ikt,jpsfe) - trb(ji,jj,ikt,jpsfe) * zws3 |
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[3443] | 333 | END DO |
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| 334 | END DO |
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[7646] | 335 | ! |
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| 336 | IF( ln_ligand ) THEN |
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| 337 | DO jj = 1, jpj |
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| 338 | DO ji = 1, jpi |
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| 339 | ikt = mbkt(ji,jj) |
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| 340 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 341 | zwssfep = zwsfep(ji,jj) * zdep |
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| 342 | tra(ji,jj,ikt,jpfep) = tra(ji,jj,ikt,jpfep) - trb(ji,jj,ikt,jpfep) * zwssfep |
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| 343 | END DO |
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| 344 | END DO |
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| 345 | ENDIF |
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| 346 | ! |
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| 347 | IF( ln_p5z ) THEN |
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| 348 | DO jj = 1, jpj |
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| 349 | DO ji = 1, jpi |
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| 350 | ikt = mbkt(ji,jj) |
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| 351 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 352 | zws4 = zwsbio4(ji,jj) * zdep |
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| 353 | zws3 = zwsbio3(ji,jj) * zdep |
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| 354 | tra(ji,jj,ikt,jpgon) = tra(ji,jj,ikt,jpgon) - trb(ji,jj,ikt,jpgon) * zws4 |
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| 355 | tra(ji,jj,ikt,jppon) = tra(ji,jj,ikt,jppon) - trb(ji,jj,ikt,jppon) * zws3 |
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| 356 | tra(ji,jj,ikt,jpgop) = tra(ji,jj,ikt,jpgop) - trb(ji,jj,ikt,jpgop) * zws4 |
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| 357 | tra(ji,jj,ikt,jppop) = tra(ji,jj,ikt,jppop) - trb(ji,jj,ikt,jppop) * zws3 |
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| 358 | END DO |
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| 359 | END DO |
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| 360 | ENDIF |
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[3443] | 361 | |
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[7646] | 362 | IF( .NOT.lk_sed ) THEN |
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[8533] | 363 | ! The 0.5 factor in zpdenit is to avoid negative NO3 concentration after |
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| 364 | ! denitrification in the sediments. Not very clever, but simpliest option. |
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[7646] | 365 | DO jj = 1, jpj |
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| 366 | DO ji = 1, jpi |
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| 367 | ikt = mbkt(ji,jj) |
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| 368 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 369 | zws4 = zwsbio4(ji,jj) * zdep |
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| 370 | zws3 = zwsbio3(ji,jj) * zdep |
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| 371 | zrivno3 = 1. - zbureff(ji,jj) |
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| 372 | zwstpoc = trb(ji,jj,ikt,jpgoc) * zws4 + trb(ji,jj,ikt,jppoc) * zws3 |
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| 373 | zpdenit = MIN( 0.5 * ( trb(ji,jj,ikt,jpno3) - rtrn ) / rdenit, zdenit2d(ji,jj) * zwstpoc * zrivno3 ) |
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| 374 | z1pdenit = zwstpoc * zrivno3 - zpdenit |
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| 375 | zolimit = MIN( ( trb(ji,jj,ikt,jpoxy) - rtrn ) / o2ut, z1pdenit * ( 1.- nitrfac(ji,jj,ikt) ) ) |
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[8533] | 376 | tra(ji,jj,ikt,jpdoc) = tra(ji,jj,ikt,jpdoc) + z1pdenit - zolimit |
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| 377 | tra(ji,jj,ikt,jppo4) = tra(ji,jj,ikt,jppo4) + zpdenit + zolimit |
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| 378 | tra(ji,jj,ikt,jpnh4) = tra(ji,jj,ikt,jpnh4) + zpdenit + zolimit |
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| 379 | tra(ji,jj,ikt,jpno3) = tra(ji,jj,ikt,jpno3) - rdenit * zpdenit |
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[7646] | 380 | tra(ji,jj,ikt,jpoxy) = tra(ji,jj,ikt,jpoxy) - zolimit * o2ut |
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[8533] | 381 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + rno3 * (zolimit + (1.+rdenit) * zpdenit ) |
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| 382 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zpdenit + zolimit |
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[7646] | 383 | sdenit(ji,jj) = rdenit * zpdenit * e3t_n(ji,jj,ikt) |
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[8533] | 384 | zsedc(ji,jj) = (1. - zrivno3) * zwstpoc * e3t_n(ji,jj,ikt) |
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[7646] | 385 | IF( ln_p5z ) THEN |
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| 386 | zwstpop = trb(ji,jj,ikt,jpgop) * zws4 + trb(ji,jj,ikt,jppop) * zws3 |
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| 387 | zwstpon = trb(ji,jj,ikt,jpgon) * zws4 + trb(ji,jj,ikt,jppon) * zws3 |
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[8541] | 388 | tra(ji,jj,ikt,jpdon) = tra(ji,jj,ikt,jpdon) + ( z1pdenit - zolimit ) * zwstpon / (zwstpoc + rtrn) |
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| 389 | tra(ji,jj,ikt,jpdop) = tra(ji,jj,ikt,jpdop) + ( z1pdenit - zolimit ) * zwstpop / (zwstpoc + rtrn) |
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[7646] | 390 | ENDIF |
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| 391 | END DO |
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| 392 | END DO |
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| 393 | ENDIF |
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| 394 | |
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| 395 | |
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[3443] | 396 | ! Nitrogen fixation process |
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[4529] | 397 | ! Small source iron from particulate inorganic iron |
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[3443] | 398 | !----------------------------------- |
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| 399 | DO jk = 1, jpkm1 |
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[7753] | 400 | zlight (:,:,jk) = ( 1.- EXP( -etot_ndcy(:,:,jk) / diazolight ) ) * ( 1. - fr_i(:,:) ) |
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| 401 | zsoufer(:,:,jk) = zlight(:,:,jk) * 2E-11 / ( 2E-11 + biron(:,:,jk) ) |
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[7646] | 402 | ENDDO |
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| 403 | IF( ln_p4z ) THEN |
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| 404 | DO jk = 1, jpkm1 |
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| 405 | DO jj = 1, jpj |
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| 406 | DO ji = 1, jpi |
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| 407 | ! ! Potential nitrogen fixation dependant on temperature and iron |
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| 408 | zlim = ( 1.- xnanono3(ji,jj,jk) - xnanonh4(ji,jj,jk) ) |
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| 409 | IF( zlim <= 0.2 ) zlim = 0.01 |
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| 410 | zfact = zlim * rfact2 |
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| 411 | |
---|
| 412 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
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| 413 | ztrpo4s = trb (ji,jj,jk,jppo4) / ( concnnh4 + trb (ji,jj,jk,jppo4) ) |
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| 414 | nitrpot(ji,jj,jk) = MAX( 0.e0, ( 0.6 * tgfunc(ji,jj,jk) - 2.15 ) * r1_rday ) & |
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| 415 | & * zfact * MIN( ztrfer, ztrpo4s ) * zlight(ji,jj,jk) |
---|
| 416 | END DO |
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[3443] | 417 | END DO |
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| 418 | END DO |
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[7646] | 419 | ELSE ! p5z |
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| 420 | DO jk = 1, jpkm1 |
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| 421 | DO jj = 1, jpj |
---|
| 422 | DO ji = 1, jpi |
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| 423 | ! ! Potential nitrogen fixation dependant on temperature and iron |
---|
| 424 | ztemp = tsn(ji,jj,jk,jp_tem) |
---|
| 425 | zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 |
---|
| 426 | ! Potential nitrogen fixation dependant on temperature and iron |
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| 427 | xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) |
---|
| 428 | xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) |
---|
| 429 | zlim = ( 1.- xdiano3 - xdianh4 ) |
---|
| 430 | IF( zlim <= 0.1 ) zlim = 0.01 |
---|
| 431 | zfact = zlim * rfact2 |
---|
| 432 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
---|
| 433 | ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) |
---|
| 434 | ztrdop(ji,jj,jk) = trb(ji,jj,jk,jpdop) / ( 1E-6 + trb(ji,jj,jk,jpdop) ) * (1. - ztrpo4(ji,jj,jk)) |
---|
| 435 | ztrdp = ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) |
---|
| 436 | nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) |
---|
| 437 | END DO |
---|
| 438 | END DO |
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| 439 | END DO |
---|
| 440 | ENDIF |
---|
[3496] | 441 | |
---|
[3443] | 442 | ! Nitrogen change due to nitrogen fixation |
---|
| 443 | ! ---------------------------------------- |
---|
[7646] | 444 | IF( ln_p4z ) THEN |
---|
| 445 | DO jk = 1, jpkm1 |
---|
| 446 | DO jj = 1, jpj |
---|
| 447 | DO ji = 1, jpi |
---|
| 448 | zfact = nitrpot(ji,jj,jk) * nitrfix |
---|
| 449 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact |
---|
| 450 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact |
---|
| 451 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + o2nit * zfact |
---|
| 452 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + concdnh4 / ( concdnh4 + trb(ji,jj,jk,jppo4) ) & |
---|
| 453 | & * 0.002 * trb(ji,jj,jk,jpdoc) * xstep |
---|
| 454 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * xstep |
---|
| 455 | END DO |
---|
| 456 | END DO |
---|
| 457 | END DO |
---|
| 458 | ELSE ! p5z |
---|
| 459 | DO jk = 1, jpkm1 |
---|
| 460 | DO jj = 1, jpj |
---|
| 461 | DO ji = 1, jpi |
---|
| 462 | zfact = nitrpot(ji,jj,jk) * nitrfix |
---|
| 463 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 |
---|
| 464 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 |
---|
| 465 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - 16.0 / 46.0 * zfact * ( 1.0 - 1.0 / 3.0 ) & |
---|
| 466 | & * ztrpo4(ji,jj,jk) / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
---|
| 467 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + zfact * 1.0 / 3.0 |
---|
| 468 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 |
---|
| 469 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + 16.0 / 46.0 * zfact / 3.0 & |
---|
| 470 | & - 16.0 / 46.0 * zfact * ztrdop(ji,jj,jk) & |
---|
| 471 | & / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
---|
| 472 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 |
---|
| 473 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zfact * 1.0 / 3.0 * 2.0 /3.0 |
---|
| 474 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 2.0 /3.0 |
---|
| 475 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 |
---|
| 476 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zfact * 1.0 / 3.0 * 1.0 /3.0 |
---|
| 477 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 1.0 /3.0 |
---|
| 478 | tra(ji,jj,jk,jpoxy) = tra(ji,jj,jk,jpoxy) + ( o2ut + o2nit ) * zfact * 2.0 / 3.0 + o2nit * zfact / 3.0 |
---|
| 479 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 |
---|
| 480 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + 30E-6 * zfact * 1.0 / 3.0 * 2.0 / 3.0 |
---|
| 481 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + 30E-6 * zfact * 1.0 / 3.0 * 1.0 / 3.0 |
---|
| 482 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday |
---|
| 483 | END DO |
---|
| 484 | END DO |
---|
| 485 | END DO |
---|
| 486 | ! |
---|
| 487 | ENDIF |
---|
[4529] | 488 | |
---|
[4996] | 489 | IF( lk_iomput ) THEN |
---|
[5385] | 490 | IF( knt == nrdttrc ) THEN |
---|
[8533] | 491 | zfact = 1.e+3 * rfact2r ! conversion from molC/l/kt to molN/m3/s |
---|
| 492 | IF( iom_use("Nfix" ) ) CALL iom_put( "Nfix", nitrpot(:,:,:) * nitrfix * rno3 * zfact * tmask(:,:,:) ) ! nitrogen fixation |
---|
[4996] | 493 | IF( iom_use("INTNFIX") ) THEN ! nitrogen fixation rate in ocean ( vertically integrated ) |
---|
[7753] | 494 | zwork1(:,:) = 0. |
---|
[4996] | 495 | DO jk = 1, jpkm1 |
---|
[8533] | 496 | zwork1(:,:) = zwork1(:,:) + nitrpot(:,:,jk) * nitrfix * rno3 * zfact * e3t_n(:,:,jk) * tmask(:,:,jk) |
---|
[4996] | 497 | ENDDO |
---|
| 498 | CALL iom_put( "INTNFIX" , zwork1 ) |
---|
[3751] | 499 | ENDIF |
---|
[8533] | 500 | IF( iom_use("SedCal" ) ) CALL iom_put( "SedCal", zsedcal(:,:) * zfact ) |
---|
| 501 | IF( iom_use("SedSi" ) ) CALL iom_put( "SedSi", zsedsi (:,:) * zfact ) |
---|
| 502 | IF( iom_use("SedC" ) ) CALL iom_put( "SedC", zsedc (:,:) * zfact ) |
---|
| 503 | IF( iom_use("Sdenit" ) ) CALL iom_put( "Sdenit", sdenit (:,:) * zfact * rno3 ) |
---|
[3443] | 504 | ENDIF |
---|
| 505 | ENDIF |
---|
| 506 | ! |
---|
| 507 | IF(ln_ctl) THEN ! print mean trends (USEd for debugging) |
---|
| 508 | WRITE(charout, fmt="('sed ')") |
---|
| 509 | CALL prt_ctl_trc_info(charout) |
---|
[5385] | 510 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
[3443] | 511 | ENDIF |
---|
| 512 | ! |
---|
[9125] | 513 | IF( ln_p5z ) DEALLOCATE( ztrpo4, ztrdop ) |
---|
| 514 | IF( ln_ligand ) DEALLOCATE( zwsfep ) |
---|
[3443] | 515 | ! |
---|
[9124] | 516 | IF( ln_timing ) CALL timing_stop('p4z_sed') |
---|
[3443] | 517 | ! |
---|
| 518 | END SUBROUTINE p4z_sed |
---|
| 519 | |
---|
[5385] | 520 | |
---|
| 521 | INTEGER FUNCTION p4z_sed_alloc() |
---|
| 522 | !!---------------------------------------------------------------------- |
---|
| 523 | !! *** ROUTINE p4z_sed_alloc *** |
---|
| 524 | !!---------------------------------------------------------------------- |
---|
| 525 | ALLOCATE( nitrpot(jpi,jpj,jpk), sdenit(jpi,jpj), STAT=p4z_sed_alloc ) |
---|
| 526 | ! |
---|
| 527 | IF( p4z_sed_alloc /= 0 ) CALL ctl_warn('p4z_sed_alloc: failed to allocate arrays') |
---|
| 528 | ! |
---|
| 529 | END FUNCTION p4z_sed_alloc |
---|
| 530 | |
---|
[3443] | 531 | !!====================================================================== |
---|
[5656] | 532 | END MODULE p4zsed |
---|