[775] | 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 | !!---------------------------------------------------------------------- |
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| 9 | #if defined key_pisces |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! 'key_pisces' PISCES bio-model |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! p4z_sed : Compute loss of organic matter in the sediments |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce_trc ! |
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| 16 | USE trp_trc |
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| 17 | USE sms |
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| 18 | USE lib_mpp |
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[858] | 19 | USE prtctl_trc |
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[341] | 20 | |
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[858] | 21 | |
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[775] | 22 | IMPLICIT NONE |
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| 23 | PRIVATE |
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[502] | 24 | |
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[775] | 25 | PUBLIC p4z_sed ! called in p4zprg.F90 |
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| 26 | |
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| 27 | !!* Substitution |
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| 28 | # include "domzgr_substitute.h90" |
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| 29 | !!---------------------------------------------------------------------- |
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| 30 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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| 31 | !! $Header:$ |
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| 32 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 33 | !!---------------------------------------------------------------------- |
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| 34 | |
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| 35 | CONTAINS |
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| 36 | |
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| 37 | SUBROUTINE p4z_sed |
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| 38 | !!--------------------------------------------------------------------- |
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| 39 | !! *** ROUTINE p4z_sed *** |
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| 40 | !! |
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| 41 | !! ** Purpose : Compute loss of organic matter in the sediments. This |
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| 42 | !! is by no way a sediment model. The loss is simply |
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| 43 | !! computed to balance the inout from rivers and dust |
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| 44 | !! |
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| 45 | !! ** Method : - ??? |
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| 46 | !!--------------------------------------------------------------------- |
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| 47 | INTEGER :: ji, jj, jk |
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| 48 | INTEGER :: ikt |
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| 49 | REAL(wp) :: zsumsedsi, zsumsedpo4, zsumsedcal |
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| 50 | REAL(wp) :: zconctmp , zdenitot , znitrpottot |
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| 51 | REAL(wp) :: zlim, zconctmp2, zstep, zfact |
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| 52 | REAL(wp), DIMENSION(jpi,jpj) :: zsidep |
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| 53 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: znitrpot, zirondep |
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[858] | 54 | CHARACTER (len=25) :: charout |
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[775] | 55 | !!--------------------------------------------------------------------- |
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| 56 | |
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| 57 | |
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| 58 | zstep = rfact2 / rjjss ! Time step duration for the biology |
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| 59 | |
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| 60 | zirondep(:,:,:) = 0.e0 ! Initialisation of variables used to compute deposition |
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| 61 | zsidep (:,:) = 0.e0 |
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| 62 | |
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| 63 | ! Iron and Si deposition at the surface |
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| 64 | ! ------------------------------------- |
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| 65 | |
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| 66 | DO jj = 1, jpj |
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| 67 | DO ji = 1, jpi |
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| 68 | zirondep(ji,jj,1) = ( 0.014 * dust(ji,jj) / ( 55.85 * rmoss ) + 3.e-10 / raass ) & |
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| 69 | & * rfact2 / fse3t(ji,jj,1) |
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| 70 | zsidep (ji,jj) = 8.8 * 0.075 * dust(ji,jj) * rfact2 / ( fse3t(ji,jj,1) * 28.1 * rmoss ) |
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| 71 | END DO |
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| 72 | END DO |
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| 73 | |
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| 74 | ! Iron solubilization of particles in the water column |
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| 75 | ! ---------------------------------------------------- |
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| 76 | |
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| 77 | DO jk = 2, jpkm1 |
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| 78 | DO jj = 1, jpj |
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| 79 | DO ji = 1, jpi |
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| 80 | zirondep(ji,jj,jk) = dust(ji,jj) / ( 10. * 55.85 * rmoss ) * rfact2 * 0.0001 |
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[339] | 81 | END DO |
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[775] | 82 | END DO |
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| 83 | END DO |
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[186] | 84 | |
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[775] | 85 | ! Add the external input of nutrients, carbon and alkalinity |
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| 86 | ! ---------------------------------------------------------- |
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[186] | 87 | |
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[775] | 88 | DO jj = 1, jpj |
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| 89 | DO ji = 1, jpi |
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| 90 | trn(ji,jj,1,jppo4) = trn(ji,jj,1,jppo4) + rivinp(ji,jj) * rfact2 |
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| 91 | trn(ji,jj,1,jpno3) = trn(ji,jj,1,jpno3) + ( rivinp(ji,jj) + nitdep(ji,jj) ) * rfact2 |
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| 92 | trn(ji,jj,1,jpfer) = trn(ji,jj,1,jpfer) + rivinp(ji,jj) * 3.e-5 * rfact2 |
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| 93 | trn(ji,jj,1,jpsil) = trn(ji,jj,1,jpsil) + zsidep (ji,jj) + cotdep(ji,jj) * rfact2 / 6. |
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| 94 | trn(ji,jj,1,jpdic) = trn(ji,jj,1,jpdic) + rivinp(ji,jj) * 2.631 * rfact2 |
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| 95 | trn(ji,jj,1,jptal) = trn(ji,jj,1,jptal) + ( cotdep(ji,jj) - rno3*(rivinp(ji,jj) & |
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| 96 | & + nitdep(ji,jj) ) ) * rfact2 |
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| 97 | END DO |
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| 98 | END DO |
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[186] | 99 | |
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[617] | 100 | |
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[775] | 101 | ! Add the external input of iron which is 3D distributed |
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| 102 | ! (dust, river and sediment mobilization) |
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| 103 | ! ------------------------------------------------------ |
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| 104 | |
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| 105 | DO jk = 1, jpkm1 |
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| 106 | DO jj = 1, jpj |
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| 107 | DO ji = 1, jpi |
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| 108 | trn(ji,jj,jk,jpfer) = trn(ji,jj,jk,jpfer) & |
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| 109 | & + zirondep(ji,jj,jk) + ironsed(ji,jj,jk) * rfact2 |
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[186] | 110 | END DO |
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[775] | 111 | END DO |
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| 112 | END DO |
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[339] | 113 | |
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[775] | 114 | ! Initialisation of variables used to compute Sinking Speed |
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| 115 | ! --------------------------------------------------------- |
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| 116 | |
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| 117 | zsumsedsi = 0.e0 |
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| 118 | zsumsedpo4 = 0.e0 |
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| 119 | zsumsedcal = 0.e0 |
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| 120 | |
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| 121 | ! Loss of biogenic silicon, Caco3 organic carbon in the sediments. |
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| 122 | ! First, the total loss is computed. |
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| 123 | ! The factor for calcite comes from the alkalinity effect |
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| 124 | ! ------------------------------------------------------------- |
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| 125 | |
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| 126 | DO jj = 1, jpj |
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| 127 | DO ji = 1, jpi |
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| 128 | ikt = MAX( mbathy(ji,jj)-1, 1 ) |
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| 129 | zfact = e1t(ji,jj) * e2t(ji,jj) / rjjss * tmask_i(ji,jj) |
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| 130 | # if ! defined key_kriest |
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| 131 | zsumsedsi = zsumsedsi + zfact * trn(ji,jj,ikt,jpdsi) * wsbio4(ji,jj,ikt) |
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| 132 | # else |
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| 133 | zsumsedsi = zsumsedsi + zfact * trn(ji,jj,ikt,jpdsi) * wscal (ji,jj,ikt) |
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| 134 | # endif |
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| 135 | zsumsedcal = zsumsedcal + zfact * trn(ji,jj,ikt,jpcal) * wscal (ji,jj,ikt) * 2.e0 |
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| 136 | # if defined key_kriest |
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| 137 | zsumsedpo4 = zsumsedpo4 + zfact * trn(ji,jj,ikt,jppoc) * wsbio3(ji,jj,ikt) |
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| 138 | # else |
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| 139 | zsumsedpo4 = zsumsedpo4 + zfact *( trn(ji,jj,ikt,jpgoc) * wsbio4(ji,jj,ikt) & |
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| 140 | & + trn(ji,jj,ikt,jppoc) * wsbio3(ji,jj,ikt) ) |
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| 141 | # endif |
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| 142 | END DO |
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[339] | 143 | END DO |
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| 144 | |
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[775] | 145 | IF( lk_mpp ) THEN |
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| 146 | CALL mpp_sum( zsumsedsi ) ! sums over the global domain |
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| 147 | CALL mpp_sum( zsumsedcal ) ! sums over the global domain |
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| 148 | CALL mpp_sum( zsumsedpo4 ) ! sums over the global domain |
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| 149 | ENDIF |
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| 150 | |
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| 151 | ! Then this loss is scaled at each bottom grid cell for |
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| 152 | ! equilibrating the total budget of silica in the ocean. |
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| 153 | ! Thus, the amount of silica lost in the sediments equal |
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| 154 | ! the supply at the surface (dust+rivers) |
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| 155 | ! ------------------------------------------------------ |
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| 156 | |
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| 157 | DO jj = 1, jpj |
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| 158 | DO ji = 1, jpi |
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| 159 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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| 160 | zconctmp = trn(ji,jj,ikt,jpdsi) * zstep / fse3t(ji,jj,ikt) & |
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| 161 | # if ! defined key_kriest |
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| 162 | & * wsbio4(ji,jj,ikt) |
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| 163 | # else |
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| 164 | & * wscal (ji,jj,ikt) |
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| 165 | # endif |
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| 166 | trn(ji,jj,ikt,jpdsi) = trn(ji,jj,ikt,jpdsi) - zconctmp |
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| 167 | trn(ji,jj,ikt,jpsil) = trn(ji,jj,ikt,jpsil) + zconctmp & |
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| 168 | & * ( 1.- ( sumdepsi + rivalkinput / raass / 6. ) / zsumsedsi ) |
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| 169 | END DO |
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| 170 | END DO |
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| 171 | |
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| 172 | DO jj = 1, jpj |
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| 173 | DO ji = 1, jpi |
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| 174 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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| 175 | zconctmp = trn(ji,jj,ikt,jpcal) * wscal(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 176 | trn(ji,jj,ikt,jpcal) = trn(ji,jj,ikt,jpcal) - zconctmp |
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| 177 | trn(ji,jj,ikt,jptal) = trn(ji,jj,ikt,jptal) + zconctmp & |
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| 178 | & * ( 1.- ( rivalkinput / raass ) / zsumsedcal ) * 2.e0 |
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| 179 | trn(ji,jj,ikt,jpdic) = trn(ji,jj,ikt,jpdic) + zconctmp & |
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| 180 | & * ( 1.- ( rivalkinput / raass ) / zsumsedcal ) |
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| 181 | END DO |
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| 182 | END DO |
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| 183 | |
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| 184 | DO jj = 1, jpj |
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| 185 | DO ji = 1, jpi |
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| 186 | ikt = MAX( mbathy(ji,jj) - 1, 1 ) |
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| 187 | # if ! defined key_kriest |
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| 188 | zconctmp = trn(ji,jj,ikt,jpgoc) |
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| 189 | zconctmp2 = trn(ji,jj,ikt,jppoc) |
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| 190 | trn(ji,jj,ikt,jpgoc) = trn(ji,jj,ikt,jpgoc) - zconctmp * wsbio4(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 191 | trn(ji,jj,ikt,jppoc) = trn(ji,jj,ikt,jppoc) - zconctmp2 * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 192 | trn(ji,jj,ikt,jpdoc) = trn(ji,jj,ikt,jpdoc) & |
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| 193 | & + ( zconctmp * wsbio4(ji,jj,ikt) + zconctmp2 * wsbio3(ji,jj,ikt) ) * zstep / fse3t(ji,jj,ikt) & |
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| 194 | & * ( 1.- rivpo4input / (raass * zsumsedpo4 ) ) |
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| 195 | trn(ji,jj,ikt,jpbfe) = trn(ji,jj,ikt,jpbfe) - trn(ji,jj,ikt,jpbfe) * wsbio4(ji,jj,ikt) * zstep & |
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| 196 | & /fse3t(ji,jj,ikt) |
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| 197 | trn(ji,jj,ikt,jpsfe) = trn(ji,jj,ikt,jpsfe) - trn(ji,jj,ikt,jpsfe) * wsbio3(ji,jj,ikt) * zstep & |
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| 198 | & /fse3t(ji,jj,ikt) |
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| 199 | # else |
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| 200 | zconctmp = trn(ji,jj,ikt,jpnum) |
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| 201 | zconctmp2 = trn(ji,jj,ikt,jppoc) |
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| 202 | trn(ji,jj,ikt,jpnum) = trn(ji,jj,ikt,jpnum) & |
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| 203 | & - zconctmp * wsbio4(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 204 | trn(ji,jj,ikt,jppoc) = trn(ji,jj,ikt,jppoc) & |
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| 205 | & - zconctmp2 * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 206 | trn(ji,jj,ikt,jpdoc) = trn(ji,jj,ikt,jpdoc) & |
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| 207 | & + ( zconctmp2 * wsbio3(ji,jj,ikt) ) & |
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| 208 | & * zstep / fse3t(ji,jj,ikt) * ( 1.- rivpo4input / ( raass * zsumsedpo4 ) ) |
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| 209 | trn(ji,jj,ikt,jpsfe) = trn(ji,jj,ikt,jpsfe) & |
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| 210 | & - trn(ji,jj,ikt,jpsfe) * wsbio3(ji,jj,ikt) * zstep / fse3t(ji,jj,ikt) |
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| 211 | # endif |
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| 212 | END DO |
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| 213 | END DO |
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| 214 | |
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| 215 | ! Nitrogen fixation (simple parameterization). The total gain |
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| 216 | ! from nitrogen fixation is scaled to balance the loss by |
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| 217 | ! denitrification |
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| 218 | ! ------------------------------------------------------------- |
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| 219 | |
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| 220 | !!gm optimisation : use fs do loop index... or 1 to jpi/j |
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| 221 | zdenitot = 0.e0 |
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| 222 | DO jk = 1, jpkm1 |
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| 223 | DO jj= 2, jpjm1 |
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| 224 | DO ji = 2, jpim1 |
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| 225 | zdenitot = zdenitot + denitr(ji,jj,jk) * rdenit * e1t(ji,jj) * e2t(ji,jj) & |
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[858] | 226 | & *fse3t(ji,jj,jk) * tmask(ji,jj,jk) * tmask_i(ji,jj) * xnegtr(ji,jj,jk) |
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[775] | 227 | END DO |
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| 228 | END DO |
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| 229 | END DO |
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| 230 | |
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| 231 | IF( lk_mpp ) CALL mpp_sum( zdenitot ) ! sum over the global domain |
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| 232 | |
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| 233 | ! Potential nitrogen fication dependant on temperature and iron |
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| 234 | ! ------------------------------------------------------------- |
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| 235 | |
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[858] | 236 | !CDIR NOVERRCHK |
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[775] | 237 | DO jk = 1, jpk |
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[858] | 238 | !CDIR NOVERRCHK |
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[775] | 239 | DO jj = 1, jpj |
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[858] | 240 | !CDIR NOVERRCHK |
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[775] | 241 | DO ji = 1, jpi |
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| 242 | zlim = ( 1.- xnanono3(ji,jj,jk) - xnanonh4(ji,jj,jk) ) |
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| 243 | IF( zlim <= 0.2 ) zlim = 0.01 |
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| 244 | znitrpot(ji,jj,jk) = MAX( 0.e0, ( 0.6 * tgfunc(ji,jj,jk) - 2.15 ) / rjjss ) & |
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| 245 | # if defined key_off_degrad |
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| 246 | & * facvol(ji,jj,jk) & |
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| 247 | # endif |
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| 248 | & * zlim * rfact2 * trn(ji,jj,jk,jpfer) & |
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| 249 | & / ( conc3 + trn(ji,jj,jk,jpfer) ) * ( 1.- EXP( -etot(ji,jj,jk) / 50.) ) |
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| 250 | END DO |
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| 251 | END DO |
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| 252 | END DO |
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| 253 | |
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| 254 | znitrpottot = 0.e0 |
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| 255 | DO jk = 1, jpkm1 |
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| 256 | DO jj = 1, jpj |
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| 257 | DO ji = 1, jpi |
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| 258 | znitrpottot = znitrpottot + znitrpot(ji,jj,jk) * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) & |
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| 259 | & * tmask(ji,jj,jk) * tmask_i(ji,jj) |
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| 260 | END DO |
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| 261 | END DO |
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| 262 | END DO |
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| 263 | |
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| 264 | IF( lk_mpp ) CALL mpp_sum( znitrpottot ) ! sum over the global domain |
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| 265 | |
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| 266 | ! Nitrogen change due to nitrogen fixation |
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| 267 | ! ---------------------------------------- |
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| 268 | |
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| 269 | DO jk = 1, jpk |
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| 270 | DO jj = 1, jpj |
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| 271 | DO ji = 1, jpi |
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| 272 | # if ! defined key_cfg_1d && ( defined key_orca_r4 || defined key_orca_r2 || defined key_orca_r05 || defined key_orca_r025 ) |
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[858] | 273 | !! zfact = znitrpot(ji,jj,jk) * zdenitot / znitrpottot |
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| 274 | zfact = znitrpot(ji,jj,jk) * 1.e-7 |
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[775] | 275 | # else |
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| 276 | zfact = znitrpot(ji,jj,jk) * 1.e-7 |
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| 277 | # endif |
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| 278 | trn(ji,jj,jk,jpnh4) = trn(ji,jj,jk,jpnh4) + zfact |
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| 279 | trn(ji,jj,jk,jpoxy) = trn(ji,jj,jk,jpoxy) + zfact * o2nit |
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| 280 | trn(ji,jj,jk,jppo4) = trn(ji,jj,jk,jppo4) + 30./ 46.* zfact |
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| 281 | END DO |
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| 282 | END DO |
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| 283 | END DO |
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| 284 | |
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| 285 | # if defined key_trc_diaadd |
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| 286 | DO jj = 1,jpj |
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| 287 | DO ji = 1,jpi |
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| 288 | trc2d(ji,jj,13) = znitrpot(ji,jj,1) * 1.e-7 * fse3t(ji,jj,1) * 1.e+3 / rfact2 |
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| 289 | trc2d(ji,jj,12) = zirondep(ji,jj,1) * 1.e+3 * rfact2r * fse3t(ji,jj,1) |
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| 290 | END DO |
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| 291 | END DO |
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| 292 | # endif |
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| 293 | ! |
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[858] | 294 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 295 | WRITE(charout, FMT="('sed ')") |
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| 296 | CALL prt_ctl_trc_info(charout) |
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| 297 | CALL prt_ctl_trc(tab4d=trn, mask=tmask, clinfo=ctrcnm) |
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| 298 | ENDIF |
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| 299 | |
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[775] | 300 | END SUBROUTINE p4z_sed |
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| 301 | |
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[502] | 302 | #else |
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[775] | 303 | !!====================================================================== |
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| 304 | !! Dummy module : No PISCES bio-model |
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| 305 | !!====================================================================== |
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| 306 | CONTAINS |
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| 307 | SUBROUTINE p4z_sed ! Empty routine |
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| 308 | END SUBROUTINE p4z_sed |
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| 309 | #endif |
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| 310 | |
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| 311 | !!====================================================================== |
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| 312 | END MODULE p4zsed |
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