[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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[10788] | 55 | REAL(wp) :: zwflux, 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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[3531] | 61 | ! |
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[3443] | 62 | CHARACTER (len=25) :: charout |
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[10127] | 63 | REAL(wp), DIMENSION(jpi,jpj ) :: zdenit2d, zbureff, zwork |
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[10362] | 64 | REAL(wp), DIMENSION(jpi,jpj ) :: zwsbio3, zwsbio4 |
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[9125] | 65 | REAL(wp), DIMENSION(jpi,jpj ) :: zsedcal, zsedsi, zsedc |
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| 66 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zsoufer, zlight |
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| 67 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrpo4, ztrdop, zirondep, zpdep |
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[10416] | 68 | REAL(wp), ALLOCATABLE, DIMENSION(:,: ) :: zsidep, zironice |
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[3443] | 69 | !!--------------------------------------------------------------------- |
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| 70 | ! |
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[9124] | 71 | IF( ln_timing ) CALL timing_start('p4z_sed') |
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[3443] | 72 | ! |
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[10223] | 73 | IF( kt == nittrc000 .AND. knt == 1 ) THEN |
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| 74 | r1_rday = 1. / rday |
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| 75 | IF (ln_sediment .AND. ln_sed_2way) THEN |
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| 76 | lk_sed = .TRUE. |
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| 77 | ELSE |
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| 78 | lk_sed = .FALSE. |
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| 79 | ENDIF |
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| 80 | ENDIF |
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| 81 | ! |
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[5385] | 82 | IF( kt == nittrc000 .AND. knt == 1 ) r1_rday = 1. / rday |
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[3443] | 83 | ! |
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| 84 | ! Allocate temporary workspace |
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[10362] | 85 | ALLOCATE( ztrpo4(jpi,jpj,jpk) ) |
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| 86 | IF( ln_p5z ) ALLOCATE( ztrdop(jpi,jpj,jpk) ) |
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[4521] | 87 | |
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[7753] | 88 | zdenit2d(:,:) = 0.e0 |
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| 89 | zbureff (:,:) = 0.e0 |
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[10127] | 90 | zwork (:,:) = 0.e0 |
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[7753] | 91 | zsedsi (:,:) = 0.e0 |
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| 92 | zsedcal (:,:) = 0.e0 |
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| 93 | zsedc (:,:) = 0.e0 |
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[3443] | 94 | |
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| 95 | ! Iron input/uptake due to sea ice : Crude parameterization based on Lancelot et al. |
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| 96 | ! ---------------------------------------------------- |
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| 97 | IF( ln_ironice ) THEN |
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| 98 | ! |
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[9125] | 99 | ALLOCATE( zironice(jpi,jpj) ) |
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[3443] | 100 | ! |
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| 101 | DO jj = 1, jpj |
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| 102 | DO ji = 1, jpi |
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[6140] | 103 | zdep = rfact2 / e3t_n(ji,jj,1) |
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[4148] | 104 | zwflux = fmmflx(ji,jj) / 1000._wp |
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[10788] | 105 | zironice(ji,jj) = MAX( -0.99 * trb(ji,jj,1,jpfer), -zwflux * icefeinput * zdep ) |
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[3443] | 106 | END DO |
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| 107 | END DO |
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| 108 | ! |
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[7753] | 109 | tra(:,:,1,jpfer) = tra(:,:,1,jpfer) + zironice(:,:) |
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[4996] | 110 | ! |
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[5385] | 111 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironice" ) ) & |
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[6140] | 112 | & CALL iom_put( "Ironice", zironice(:,:) * 1.e+3 * rfact2r * e3t_n(:,:,1) * tmask(:,:,1) ) ! iron flux from ice |
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[4996] | 113 | ! |
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[9125] | 114 | DEALLOCATE( zironice ) |
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[3443] | 115 | ! |
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| 116 | ENDIF |
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| 117 | |
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| 118 | ! Add the external input of nutrients from dust deposition |
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| 119 | ! ---------------------------------------------------------- |
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| 120 | IF( ln_dust ) THEN |
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| 121 | ! |
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[9539] | 122 | ALLOCATE( zsidep(jpi,jpj), zpdep(jpi,jpj,jpk), zirondep(jpi,jpj,jpk) ) |
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[3443] | 123 | ! ! Iron and Si deposition at the surface |
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| 124 | IF( ln_solub ) THEN |
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[7753] | 125 | zirondep(:,:,1) = solub(:,:) * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 126 | ELSE |
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[7753] | 127 | zirondep(:,:,1) = dustsolub * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 55.85 + 3.e-10 * r1_ryyss |
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[3443] | 128 | ENDIF |
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[7753] | 129 | zsidep(:,:) = 8.8 * 0.075 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 28.1 |
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| 130 | zpdep (:,:,1) = 0.1 * 0.021 * dust(:,:) * mfrac * rfact2 / e3t_n(:,:,1) / 31. / po4r |
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[3443] | 131 | ! ! Iron solubilization of particles in the water column |
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[4529] | 132 | ! ! dust in kg/m2/s ---> 1/55.85 to put in mol/Fe ; wdust in m/j |
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| 133 | zwdust = 0.03 * rday / ( wdust * 55.85 ) / ( 270. * rday ) |
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[3443] | 134 | DO jk = 2, jpkm1 |
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[7753] | 135 | zirondep(:,:,jk) = dust(:,:) * mfrac * zwdust * rfact2 * EXP( -gdept_n(:,:,jk) / 540. ) |
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| 136 | zpdep (:,:,jk) = zirondep(:,:,jk) * 0.023 |
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[3443] | 137 | END DO |
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| 138 | ! ! Iron solubilization of particles in the water column |
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[7753] | 139 | tra(:,:,1,jpsil) = tra(:,:,1,jpsil) + zsidep (:,:) |
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[9539] | 140 | DO jk = 1, jpkm1 |
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| 141 | tra(:,:,jk,jppo4) = tra(:,:,jk,jppo4) + zpdep (:,:,jk) |
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| 142 | tra(:,:,jk,jpfer) = tra(:,:,jk,jpfer) + zirondep(:,:,jk) |
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| 143 | ENDDO |
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[4996] | 144 | ! |
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| 145 | IF( lk_iomput ) THEN |
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[5385] | 146 | IF( knt == nrdttrc ) THEN |
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[4996] | 147 | IF( iom_use( "Irondep" ) ) & |
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[6140] | 148 | & 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] | 149 | IF( iom_use( "pdust" ) ) & |
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| 150 | & CALL iom_put( "pdust" , dust(:,:) / ( wdust * rday ) * tmask(:,:,1) ) ! dust concentration at surface |
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[3443] | 151 | ENDIF |
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| 152 | ENDIF |
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[9539] | 153 | DEALLOCATE( zsidep, zpdep, zirondep ) |
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[3443] | 154 | ! |
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| 155 | ENDIF |
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| 156 | |
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| 157 | ! Add the external input of nutrients from river |
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| 158 | ! ---------------------------------------------------------- |
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| 159 | IF( ln_river ) THEN |
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[5385] | 160 | DO jj = 1, jpj |
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| 161 | DO ji = 1, jpi |
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| 162 | DO jk = 1, nk_rnf(ji,jj) |
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| 163 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + rivdip(ji,jj) * rfact2 |
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| 164 | tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3) + rivdin(ji,jj) * rfact2 |
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| 165 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + rivdic(ji,jj) * 5.e-5 * rfact2 |
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| 166 | tra(ji,jj,jk,jpsil) = tra(ji,jj,jk,jpsil) + rivdsi(ji,jj) * rfact2 |
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| 167 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + rivdic(ji,jj) * rfact2 |
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| 168 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + ( rivalk(ji,jj) - rno3 * rivdin(ji,jj) ) * rfact2 |
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[10362] | 169 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + rivdoc(ji,jj) * rfact2 |
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[5385] | 170 | ENDDO |
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| 171 | ENDDO |
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| 172 | ENDDO |
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[10362] | 173 | IF (ln_ligand) THEN |
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| 174 | DO jj = 1, jpj |
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| 175 | DO ji = 1, jpi |
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| 176 | DO jk = 1, nk_rnf(ji,jj) |
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| 177 | tra(ji,jj,jk,jplgw) = tra(ji,jj,jk,jplgw) + rivdic(ji,jj) * 5.e-5 * 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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[7646] | 182 | IF( ln_p5z ) THEN |
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| 183 | DO jj = 1, jpj |
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| 184 | DO ji = 1, jpi |
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| 185 | DO jk = 1, nk_rnf(ji,jj) |
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| 186 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + rivdop(ji,jj) * rfact2 |
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| 187 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + rivdon(ji,jj) * rfact2 |
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| 188 | ENDDO |
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| 189 | ENDDO |
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| 190 | ENDDO |
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| 191 | ENDIF |
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[3443] | 192 | ENDIF |
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| 193 | |
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| 194 | ! Add the external input of nutrients from nitrogen deposition |
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| 195 | ! ---------------------------------------------------------- |
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| 196 | IF( ln_ndepo ) THEN |
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[7753] | 197 | tra(:,:,1,jpno3) = tra(:,:,1,jpno3) + nitdep(:,:) * rfact2 |
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| 198 | tra(:,:,1,jptal) = tra(:,:,1,jptal) - rno3 * nitdep(:,:) * rfact2 |
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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(:,:,:,jplgw) = tra(:,:,:,jplgw) + ( hydrofe(:,:,:) * lgw_rath ) * rfact2 |
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[7646] | 207 | ENDIF |
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[3443] | 208 | ! |
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[5385] | 209 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "HYDR" ) ) & |
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[3446] | 210 | & CALL iom_put( "HYDR", hydrofe(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! hydrothermal iron input |
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[3443] | 211 | ENDIF |
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| 212 | |
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[7646] | 213 | ! OA: Warning, the following part is necessary to avoid CFL problems above the sediments |
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[4521] | 214 | ! -------------------------------------------------------------------- |
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| 215 | DO jj = 1, jpj |
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| 216 | DO ji = 1, jpi |
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| 217 | ikt = mbkt(ji,jj) |
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[6140] | 218 | zdep = e3t_n(ji,jj,ikt) / xstep |
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[4521] | 219 | zwsbio4(ji,jj) = MIN( 0.99 * zdep, wsbio4(ji,jj,ikt) ) |
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| 220 | zwsbio3(ji,jj) = MIN( 0.99 * zdep, wsbio3(ji,jj,ikt) ) |
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| 221 | END DO |
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| 222 | END DO |
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[7646] | 223 | ! |
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| 224 | IF( .NOT.lk_sed ) THEN |
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[10223] | 225 | ! |
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| 226 | ! Add the external input of iron from sediment mobilization |
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| 227 | ! ------------------------------------------------------ |
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| 228 | IF( ln_ironsed ) THEN |
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| 229 | tra(:,:,:,jpfer) = tra(:,:,:,jpfer) + ironsed(:,:,:) * rfact2 |
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| 230 | ! |
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| 231 | IF( lk_iomput .AND. knt == nrdttrc .AND. iom_use( "Ironsed" ) ) & |
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| 232 | & CALL iom_put( "Ironsed", ironsed(:,:,:) * 1.e+3 * tmask(:,:,:) ) ! iron inputs from sediments |
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| 233 | ENDIF |
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| 234 | |
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[7646] | 235 | ! Computation of the sediment denitrification proportion: The metamodel from midlleburg (2006) is being used |
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| 236 | ! Computation of the fraction of organic matter that is permanently buried from Dunne's model |
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| 237 | ! ------------------------------------------------------- |
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| 238 | DO jj = 1, jpj |
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| 239 | DO ji = 1, jpi |
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| 240 | IF( tmask(ji,jj,1) == 1 ) THEN |
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| 241 | ikt = mbkt(ji,jj) |
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| 242 | zflx = ( trb(ji,jj,ikt,jpgoc) * zwsbio4(ji,jj) & |
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| 243 | & + trb(ji,jj,ikt,jppoc) * zwsbio3(ji,jj) ) * 1E3 * 1E6 / 1E4 |
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| 244 | zflx = LOG10( MAX( 1E-3, zflx ) ) |
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| 245 | zo2 = LOG10( MAX( 10. , trb(ji,jj,ikt,jpoxy) * 1E6 ) ) |
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| 246 | zno3 = LOG10( MAX( 1. , trb(ji,jj,ikt,jpno3) * 1E6 * rno3 ) ) |
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| 247 | zdep = LOG10( gdepw_n(ji,jj,ikt+1) ) |
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| 248 | zdenit2d(ji,jj) = -2.2567 - 1.185 * zflx - 0.221 * zflx**2 - 0.3995 * zno3 * zo2 + 1.25 * zno3 & |
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| 249 | & + 0.4721 * zo2 - 0.0996 * zdep + 0.4256 * zflx * zo2 |
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| 250 | zdenit2d(ji,jj) = 10.0**( zdenit2d(ji,jj) ) |
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| 251 | ! |
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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) ) * 1E6 |
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| 254 | zbureff(ji,jj) = 0.013 + 0.53 * zflx**2 / ( 7.0 + zflx )**2 |
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[10127] | 255 | ENDIF |
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[7646] | 256 | END DO |
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[10127] | 257 | END DO |
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[7646] | 258 | ! |
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| 259 | ENDIF |
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[3443] | 260 | |
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[4148] | 261 | ! This loss is scaled at each bottom grid cell for equilibrating the total budget of silica in the ocean. |
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| 262 | ! Thus, the amount of silica lost in the sediments equal the supply at the surface (dust+rivers) |
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[3443] | 263 | ! ------------------------------------------------------ |
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[10127] | 264 | IF( .NOT.lk_sed ) zrivsil = 1._wp - sedsilfrac |
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[3443] | 265 | |
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| 266 | DO jj = 1, jpj |
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| 267 | DO ji = 1, jpi |
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| 268 | ikt = mbkt(ji,jj) |
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[6140] | 269 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[10362] | 270 | zwsc = zwsbio4(ji,jj) * zdep |
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[5385] | 271 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 272 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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[3443] | 273 | ! |
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[5385] | 274 | tra(ji,jj,ikt,jpgsi) = tra(ji,jj,ikt,jpgsi) - zsiloss |
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| 275 | tra(ji,jj,ikt,jpcal) = tra(ji,jj,ikt,jpcal) - zcaloss |
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[3443] | 276 | END DO |
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| 277 | END DO |
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[7646] | 278 | ! |
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| 279 | IF( .NOT.lk_sed ) THEN |
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| 280 | DO jj = 1, jpj |
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| 281 | DO ji = 1, jpi |
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| 282 | ikt = mbkt(ji,jj) |
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| 283 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[10362] | 284 | zwsc = zwsbio4(ji,jj) * zdep |
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[7646] | 285 | zsiloss = trb(ji,jj,ikt,jpgsi) * zwsc |
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| 286 | zcaloss = trb(ji,jj,ikt,jpcal) * zwsc |
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| 287 | tra(ji,jj,ikt,jpsil) = tra(ji,jj,ikt,jpsil) + zsiloss * zrivsil |
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| 288 | ! |
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| 289 | zfactcal = MIN( excess(ji,jj,ikt), 0.2 ) |
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| 290 | zfactcal = MIN( 1., 1.3 * ( 0.2 - zfactcal ) / ( 0.4 - zfactcal ) ) |
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[10127] | 291 | zrivalk = sedcalfrac * zfactcal |
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[7646] | 292 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + zcaloss * zrivalk * 2.0 |
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| 293 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zcaloss * zrivalk |
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[8533] | 294 | zsedcal(ji,jj) = (1.0 - zrivalk) * zcaloss * e3t_n(ji,jj,ikt) |
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| 295 | zsedsi (ji,jj) = (1.0 - zrivsil) * zsiloss * e3t_n(ji,jj,ikt) |
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[7646] | 296 | END DO |
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| 297 | END DO |
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| 298 | ENDIF |
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| 299 | ! |
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[3443] | 300 | DO jj = 1, jpj |
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| 301 | DO ji = 1, jpi |
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[5385] | 302 | ikt = mbkt(ji,jj) |
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[6140] | 303 | zdep = xstep / e3t_n(ji,jj,ikt) |
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[4521] | 304 | zws4 = zwsbio4(ji,jj) * zdep |
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| 305 | zws3 = zwsbio3(ji,jj) * zdep |
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[5385] | 306 | tra(ji,jj,ikt,jpgoc) = tra(ji,jj,ikt,jpgoc) - trb(ji,jj,ikt,jpgoc) * zws4 |
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| 307 | tra(ji,jj,ikt,jppoc) = tra(ji,jj,ikt,jppoc) - trb(ji,jj,ikt,jppoc) * zws3 |
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| 308 | tra(ji,jj,ikt,jpbfe) = tra(ji,jj,ikt,jpbfe) - trb(ji,jj,ikt,jpbfe) * zws4 |
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| 309 | tra(ji,jj,ikt,jpsfe) = tra(ji,jj,ikt,jpsfe) - trb(ji,jj,ikt,jpsfe) * zws3 |
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[3443] | 310 | END DO |
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| 311 | END DO |
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[7646] | 312 | ! |
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| 313 | IF( ln_p5z ) THEN |
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| 314 | DO jj = 1, jpj |
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| 315 | DO ji = 1, jpi |
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| 316 | ikt = mbkt(ji,jj) |
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| 317 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 318 | zws4 = zwsbio4(ji,jj) * zdep |
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| 319 | zws3 = zwsbio3(ji,jj) * zdep |
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| 320 | tra(ji,jj,ikt,jpgon) = tra(ji,jj,ikt,jpgon) - trb(ji,jj,ikt,jpgon) * zws4 |
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| 321 | tra(ji,jj,ikt,jppon) = tra(ji,jj,ikt,jppon) - trb(ji,jj,ikt,jppon) * zws3 |
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| 322 | tra(ji,jj,ikt,jpgop) = tra(ji,jj,ikt,jpgop) - trb(ji,jj,ikt,jpgop) * zws4 |
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| 323 | tra(ji,jj,ikt,jppop) = tra(ji,jj,ikt,jppop) - trb(ji,jj,ikt,jppop) * zws3 |
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| 324 | END DO |
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| 325 | END DO |
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| 326 | ENDIF |
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[3443] | 327 | |
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[7646] | 328 | IF( .NOT.lk_sed ) THEN |
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[8533] | 329 | ! The 0.5 factor in zpdenit is to avoid negative NO3 concentration after |
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| 330 | ! denitrification in the sediments. Not very clever, but simpliest option. |
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[7646] | 331 | DO jj = 1, jpj |
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| 332 | DO ji = 1, jpi |
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| 333 | ikt = mbkt(ji,jj) |
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| 334 | zdep = xstep / e3t_n(ji,jj,ikt) |
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| 335 | zws4 = zwsbio4(ji,jj) * zdep |
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| 336 | zws3 = zwsbio3(ji,jj) * zdep |
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| 337 | zrivno3 = 1. - zbureff(ji,jj) |
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| 338 | zwstpoc = trb(ji,jj,ikt,jpgoc) * zws4 + trb(ji,jj,ikt,jppoc) * zws3 |
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| 339 | zpdenit = MIN( 0.5 * ( trb(ji,jj,ikt,jpno3) - rtrn ) / rdenit, zdenit2d(ji,jj) * zwstpoc * zrivno3 ) |
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| 340 | z1pdenit = zwstpoc * zrivno3 - zpdenit |
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| 341 | zolimit = MIN( ( trb(ji,jj,ikt,jpoxy) - rtrn ) / o2ut, z1pdenit * ( 1.- nitrfac(ji,jj,ikt) ) ) |
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[8533] | 342 | tra(ji,jj,ikt,jpdoc) = tra(ji,jj,ikt,jpdoc) + z1pdenit - zolimit |
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| 343 | tra(ji,jj,ikt,jppo4) = tra(ji,jj,ikt,jppo4) + zpdenit + zolimit |
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| 344 | tra(ji,jj,ikt,jpnh4) = tra(ji,jj,ikt,jpnh4) + zpdenit + zolimit |
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| 345 | tra(ji,jj,ikt,jpno3) = tra(ji,jj,ikt,jpno3) - rdenit * zpdenit |
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[7646] | 346 | tra(ji,jj,ikt,jpoxy) = tra(ji,jj,ikt,jpoxy) - zolimit * o2ut |
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[8533] | 347 | tra(ji,jj,ikt,jptal) = tra(ji,jj,ikt,jptal) + rno3 * (zolimit + (1.+rdenit) * zpdenit ) |
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| 348 | tra(ji,jj,ikt,jpdic) = tra(ji,jj,ikt,jpdic) + zpdenit + zolimit |
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[7646] | 349 | sdenit(ji,jj) = rdenit * zpdenit * e3t_n(ji,jj,ikt) |
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[8533] | 350 | zsedc(ji,jj) = (1. - zrivno3) * zwstpoc * e3t_n(ji,jj,ikt) |
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[7646] | 351 | IF( ln_p5z ) THEN |
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| 352 | zwstpop = trb(ji,jj,ikt,jpgop) * zws4 + trb(ji,jj,ikt,jppop) * zws3 |
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| 353 | zwstpon = trb(ji,jj,ikt,jpgon) * zws4 + trb(ji,jj,ikt,jppon) * zws3 |
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[8541] | 354 | tra(ji,jj,ikt,jpdon) = tra(ji,jj,ikt,jpdon) + ( z1pdenit - zolimit ) * zwstpon / (zwstpoc + rtrn) |
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| 355 | tra(ji,jj,ikt,jpdop) = tra(ji,jj,ikt,jpdop) + ( z1pdenit - zolimit ) * zwstpop / (zwstpoc + rtrn) |
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[7646] | 356 | ENDIF |
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| 357 | END DO |
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| 358 | END DO |
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| 359 | ENDIF |
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| 360 | |
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| 361 | |
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[3443] | 362 | ! Nitrogen fixation process |
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[4529] | 363 | ! Small source iron from particulate inorganic iron |
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[3443] | 364 | !----------------------------------- |
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| 365 | DO jk = 1, jpkm1 |
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[7753] | 366 | zlight (:,:,jk) = ( 1.- EXP( -etot_ndcy(:,:,jk) / diazolight ) ) * ( 1. - fr_i(:,:) ) |
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| 367 | zsoufer(:,:,jk) = zlight(:,:,jk) * 2E-11 / ( 2E-11 + biron(:,:,jk) ) |
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[7646] | 368 | ENDDO |
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| 369 | IF( ln_p4z ) THEN |
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| 370 | DO jk = 1, jpkm1 |
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| 371 | DO jj = 1, jpj |
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| 372 | DO ji = 1, jpi |
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| 373 | ! ! Potential nitrogen fixation dependant on temperature and iron |
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[10362] | 374 | ztemp = tsn(ji,jj,jk,jp_tem) |
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| 375 | zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 |
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| 376 | ! Potential nitrogen fixation dependant on temperature and iron |
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| 377 | xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) |
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| 378 | xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) |
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| 379 | zlim = ( 1.- xdiano3 - xdianh4 ) |
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| 380 | IF( zlim <= 0.1 ) zlim = 0.01 |
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[7646] | 381 | zfact = zlim * rfact2 |
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[10362] | 382 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
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| 383 | ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) |
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| 384 | ztrdp = ztrpo4(ji,jj,jk) |
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| 385 | nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) |
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[7646] | 386 | END DO |
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[3443] | 387 | END DO |
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| 388 | END DO |
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[7646] | 389 | ELSE ! p5z |
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| 390 | DO jk = 1, jpkm1 |
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| 391 | DO jj = 1, jpj |
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| 392 | DO ji = 1, jpi |
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| 393 | ! ! Potential nitrogen fixation dependant on temperature and iron |
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| 394 | ztemp = tsn(ji,jj,jk,jp_tem) |
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| 395 | zmudia = MAX( 0.,-0.001096*ztemp**2 + 0.057*ztemp -0.637 ) * 7.625 |
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| 396 | ! Potential nitrogen fixation dependant on temperature and iron |
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| 397 | xdianh4 = trb(ji,jj,jk,jpnh4) / ( concnnh4 + trb(ji,jj,jk,jpnh4) ) |
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| 398 | xdiano3 = trb(ji,jj,jk,jpno3) / ( concnno3 + trb(ji,jj,jk,jpno3) ) * (1. - xdianh4) |
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| 399 | zlim = ( 1.- xdiano3 - xdianh4 ) |
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| 400 | IF( zlim <= 0.1 ) zlim = 0.01 |
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| 401 | zfact = zlim * rfact2 |
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| 402 | ztrfer = biron(ji,jj,jk) / ( concfediaz + biron(ji,jj,jk) ) |
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| 403 | ztrpo4(ji,jj,jk) = trb(ji,jj,jk,jppo4) / ( 1E-6 + trb(ji,jj,jk,jppo4) ) |
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| 404 | 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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| 405 | ztrdp = ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) |
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| 406 | nitrpot(ji,jj,jk) = zmudia * r1_rday * zfact * MIN( ztrfer, ztrdp ) * zlight(ji,jj,jk) |
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| 407 | END DO |
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| 408 | END DO |
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| 409 | END DO |
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| 410 | ENDIF |
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[3496] | 411 | |
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[3443] | 412 | ! Nitrogen change due to nitrogen fixation |
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| 413 | ! ---------------------------------------- |
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[7646] | 414 | IF( ln_p4z ) THEN |
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| 415 | DO jk = 1, jpkm1 |
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| 416 | DO jj = 1, jpj |
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| 417 | DO ji = 1, jpi |
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| 418 | zfact = nitrpot(ji,jj,jk) * nitrfix |
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[10362] | 419 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 |
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| 420 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 |
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| 421 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) - zfact * 2.0 / 3.0 |
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| 422 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 |
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| 423 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 |
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| 424 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 |
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| 425 | 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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| 426 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 |
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| 427 | 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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| 428 | 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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| 429 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday |
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[7646] | 430 | tra(ji,jj,jk,jppo4) = tra(ji,jj,jk,jppo4) + concdnh4 / ( concdnh4 + trb(ji,jj,jk,jppo4) ) & |
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[10362] | 431 | & * 0.001 * trb(ji,jj,jk,jpdoc) * xstep |
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[7646] | 432 | END DO |
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| 433 | END DO |
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| 434 | END DO |
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| 435 | ELSE ! p5z |
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| 436 | DO jk = 1, jpkm1 |
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| 437 | DO jj = 1, jpj |
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| 438 | DO ji = 1, jpi |
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| 439 | zfact = nitrpot(ji,jj,jk) * nitrfix |
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| 440 | tra(ji,jj,jk,jpnh4) = tra(ji,jj,jk,jpnh4) + zfact / 3.0 |
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| 441 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + rno3 * zfact / 3.0 |
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| 442 | 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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| 443 | & * ztrpo4(ji,jj,jk) / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
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| 444 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) + zfact * 1.0 / 3.0 |
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| 445 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) + zfact * 1.0 / 3.0 |
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| 446 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) + 16.0 / 46.0 * zfact / 3.0 & |
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| 447 | & - 16.0 / 46.0 * zfact * ztrdop(ji,jj,jk) & |
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| 448 | & / (ztrpo4(ji,jj,jk) + ztrdop(ji,jj,jk) + rtrn) |
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| 449 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zfact * 1.0 / 3.0 * 2.0 / 3.0 |
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| 450 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zfact * 1.0 / 3.0 * 2.0 /3.0 |
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| 451 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + 16.0 / 46.0 * zfact * 1.0 / 3.0 * 2.0 /3.0 |
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| 452 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zfact * 1.0 / 3.0 * 1.0 / 3.0 |
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| 453 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zfact * 1.0 / 3.0 * 1.0 /3.0 |
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| 454 | 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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| 455 | 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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| 456 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) - 30E-6 * zfact * 1.0 / 3.0 |
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| 457 | 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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| 458 | 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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| 459 | tra(ji,jj,jk,jpfer) = tra(ji,jj,jk,jpfer) + 0.002 * 4E-10 * zsoufer(ji,jj,jk) * rfact2 / rday |
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| 460 | END DO |
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| 461 | END DO |
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| 462 | END DO |
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| 463 | ! |
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| 464 | ENDIF |
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[4529] | 465 | |
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[4996] | 466 | IF( lk_iomput ) THEN |
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[5385] | 467 | IF( knt == nrdttrc ) THEN |
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[8533] | 468 | zfact = 1.e+3 * rfact2r ! conversion from molC/l/kt to molN/m3/s |
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| 469 | IF( iom_use("Nfix" ) ) CALL iom_put( "Nfix", nitrpot(:,:,:) * nitrfix * rno3 * zfact * tmask(:,:,:) ) ! nitrogen fixation |
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[4996] | 470 | IF( iom_use("INTNFIX") ) THEN ! nitrogen fixation rate in ocean ( vertically integrated ) |
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[10127] | 471 | zwork(:,:) = 0. |
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[4996] | 472 | DO jk = 1, jpkm1 |
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[10127] | 473 | zwork(:,:) = zwork(:,:) + nitrpot(:,:,jk) * nitrfix * rno3 * zfact * e3t_n(:,:,jk) * tmask(:,:,jk) |
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[4996] | 474 | ENDDO |
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[10127] | 475 | CALL iom_put( "INTNFIX" , zwork ) |
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[3751] | 476 | ENDIF |
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[8533] | 477 | IF( iom_use("SedCal" ) ) CALL iom_put( "SedCal", zsedcal(:,:) * zfact ) |
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| 478 | IF( iom_use("SedSi" ) ) CALL iom_put( "SedSi", zsedsi (:,:) * zfact ) |
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| 479 | IF( iom_use("SedC" ) ) CALL iom_put( "SedC", zsedc (:,:) * zfact ) |
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| 480 | IF( iom_use("Sdenit" ) ) CALL iom_put( "Sdenit", sdenit (:,:) * zfact * rno3 ) |
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[3443] | 481 | ENDIF |
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| 482 | ENDIF |
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| 483 | ! |
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| 484 | IF(ln_ctl) THEN ! print mean trends (USEd for debugging) |
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| 485 | WRITE(charout, fmt="('sed ')") |
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| 486 | CALL prt_ctl_trc_info(charout) |
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[5385] | 487 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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[3443] | 488 | ENDIF |
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| 489 | ! |
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[9125] | 490 | IF( ln_p5z ) DEALLOCATE( ztrpo4, ztrdop ) |
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[3443] | 491 | ! |
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[9124] | 492 | IF( ln_timing ) CALL timing_stop('p4z_sed') |
---|
[3443] | 493 | ! |
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| 494 | END SUBROUTINE p4z_sed |
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| 495 | |
---|
[5385] | 496 | |
---|
| 497 | INTEGER FUNCTION p4z_sed_alloc() |
---|
| 498 | !!---------------------------------------------------------------------- |
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| 499 | !! *** ROUTINE p4z_sed_alloc *** |
---|
| 500 | !!---------------------------------------------------------------------- |
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| 501 | ALLOCATE( nitrpot(jpi,jpj,jpk), sdenit(jpi,jpj), STAT=p4z_sed_alloc ) |
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| 502 | ! |
---|
[10425] | 503 | IF( p4z_sed_alloc /= 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_alloc: failed to allocate arrays' ) |
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[5385] | 504 | ! |
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| 505 | END FUNCTION p4z_sed_alloc |
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| 506 | |
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[3443] | 507 | !!====================================================================== |
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[5656] | 508 | END MODULE p4zsed |
---|