[935] | 1 | MODULE p4zsink |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4zsink *** |
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| 4 | !! TOP : PISCES Compute vertical flux of particulate matter due to gravitational sinking |
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| 5 | !!====================================================================== |
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| 6 | !! History : 1.0 ! 2004 (O. Aumont) Original code |
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| 7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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| 8 | #if defined key_pisces |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! p4z_sink : Compute vertical flux of particulate matter due to gravitational sinking |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | USE trc |
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| 13 | USE oce_trc ! |
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[1073] | 14 | USE sms_pisces |
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[935] | 15 | USE prtctl_trc |
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[1457] | 16 | USE iom |
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[935] | 17 | |
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| 18 | IMPLICIT NONE |
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| 19 | PRIVATE |
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| 20 | |
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| 21 | PUBLIC p4z_sink ! called in p4zbio.F90 |
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| 22 | |
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| 23 | !! * Shared module variables |
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| 24 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: & !: |
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| 25 | wsbio3, wsbio4, & !: POC and GOC sinking speeds |
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| 26 | wscal !: Calcite and BSi sinking speeds |
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| 27 | |
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| 28 | !! * Module variables |
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[1180] | 29 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: & !: |
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[935] | 30 | sinking, sinking2, & !: POC sinking fluxes (different meanings depending on the parameterization |
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| 31 | sinkcal, sinksil, & !: CaCO3 and BSi sinking fluxes |
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| 32 | sinkfer !: Small BFe sinking flux |
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| 33 | |
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[1264] | 34 | REAL(wp) :: & |
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| 35 | xstep , xstep2 !: Time step duration for biology |
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| 36 | |
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[1457] | 37 | INTEGER :: & |
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| 38 | iksed = 10 ! |
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| 39 | |
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[935] | 40 | #if defined key_kriest |
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| 41 | REAL(wp) :: & |
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| 42 | xkr_sfact = 250. , & !: Sinking factor |
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| 43 | xkr_stick = 0.2 , & !: Stickiness |
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| 44 | xkr_nnano = 2.337 , & !: Nbr of cell in nano size class |
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| 45 | xkr_ndiat = 3.718 , & !: Nbr of cell in diatoms size class |
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| 46 | xkr_nmeso = 7.147 , & !: Nbr of cell in mesozoo size class |
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| 47 | xkr_naggr = 9.877 !: Nbr of cell in aggregates size class |
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| 48 | |
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| 49 | REAL(wp) :: & |
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| 50 | xkr_frac |
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| 51 | |
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| 52 | REAL(wp), PUBLIC :: & |
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| 53 | xkr_dnano , & !: Size of particles in nano pool |
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| 54 | xkr_ddiat , & !: Size of particles in diatoms pool |
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| 55 | xkr_dmeso , & !: Size of particles in mesozoo pool |
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| 56 | xkr_daggr , & !: Size of particles in aggregates pool |
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| 57 | xkr_wsbio_min , & !: min vertical particle speed |
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| 58 | xkr_wsbio_max !: max vertical particle speed |
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| 59 | |
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| 60 | REAL(wp), PUBLIC, DIMENSION(jpk) :: & !: |
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| 61 | xnumm !: maximum number of particles in aggregates |
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| 62 | |
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| 63 | #endif |
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| 64 | |
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| 65 | #if ! defined key_kriest |
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| 66 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & !: |
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| 67 | sinkfer2 !: Big Fe sinking flux |
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| 68 | #endif |
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| 69 | |
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| 70 | !!* Substitution |
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[1808] | 71 | # include "top_substitute.h90" |
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[935] | 72 | !!---------------------------------------------------------------------- |
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| 73 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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[1152] | 74 | !! $Id$ |
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[935] | 75 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 76 | !!---------------------------------------------------------------------- |
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| 77 | |
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| 78 | CONTAINS |
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| 79 | |
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| 80 | #if defined key_kriest |
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| 81 | |
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| 82 | SUBROUTINE p4z_sink ( kt, jnt ) |
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| 83 | !!--------------------------------------------------------------------- |
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| 84 | !! *** ROUTINE p4z_sink *** |
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| 85 | !! |
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| 86 | !! ** Purpose : Compute vertical flux of particulate matter due to |
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| 87 | !! gravitational sinking - Kriest parameterization |
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| 88 | !! |
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| 89 | !! ** Method : - ??? |
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| 90 | !!--------------------------------------------------------------------- |
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| 91 | |
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| 92 | INTEGER, INTENT(in) :: kt, jnt |
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| 93 | INTEGER :: ji, jj, jk |
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| 94 | REAL(wp) :: zagg1, zagg2, zagg3, zagg4, zagg5, zaggsi, zaggsh |
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| 95 | REAL(wp) :: zagg , zaggdoc, znumdoc |
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| 96 | REAL(wp) :: znum , zeps, zfm, zgm, zsm |
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| 97 | REAL(wp) :: zdiv , zdiv1, zdiv2, zdiv3, zdiv4, zdiv5 |
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| 98 | REAL(wp) :: zval1, zval2, zval3, zval4 |
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[1457] | 99 | #if defined key_trc_diaadd |
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| 100 | REAL(wp) :: zrfact2 |
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[1830] | 101 | INTEGER :: ik1 |
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[935] | 102 | #endif |
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| 103 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: znum3d |
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| 104 | CHARACTER (len=25) :: charout |
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| 105 | |
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| 106 | !!--------------------------------------------------------------------- |
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| 107 | |
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[1264] | 108 | IF( ( kt * jnt ) == nittrc000 ) THEN |
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| 109 | CALL p4z_sink_init ! Initialization (first time-step only) |
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[1736] | 110 | xstep = rfact2 / rday ! Time step duration for biology |
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[1264] | 111 | xstep2 = rfact2 / 2. |
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| 112 | ENDIF |
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[935] | 113 | |
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| 114 | ! Initialisation of variables used to compute Sinking Speed |
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| 115 | ! --------------------------------------------------------- |
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| 116 | |
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| 117 | znum3d(:,:,:) = 0.e0 |
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| 118 | zval1 = 1. + xkr_zeta |
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| 119 | zval2 = 1. + xkr_zeta + xkr_eta |
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| 120 | zval3 = 1. + xkr_eta |
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| 121 | |
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| 122 | ! Computation of the vertical sinking speed : Kriest et Evans, 2000 |
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| 123 | ! ----------------------------------------------------------------- |
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| 124 | |
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| 125 | DO jk = 1, jpkm1 |
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| 126 | DO jj = 1, jpj |
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| 127 | DO ji = 1, jpi |
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| 128 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
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| 129 | znum = trn(ji,jj,jk,jppoc) / ( trn(ji,jj,jk,jpnum) + rtrn ) / xkr_massp |
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| 130 | ! -------------- To avoid sinking speed over 50 m/day ------- |
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| 131 | znum = MIN( xnumm(jk), znum ) |
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| 132 | znum = MAX( 1.1 , znum ) |
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| 133 | znum3d(ji,jj,jk) = znum |
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| 134 | !------------------------------------------------------------ |
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| 135 | zeps = ( zval1 * znum - 1. )/ ( znum - 1. ) |
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| 136 | zfm = xkr_frac**( 1. - zeps ) |
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| 137 | zgm = xkr_frac**( zval1 - zeps ) |
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| 138 | zdiv = MAX( 1.e-4, ABS( zeps - zval2 ) ) * SIGN( 1., ( zeps - zval2 ) ) |
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| 139 | zdiv1 = zeps - zval3 |
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| 140 | wsbio3(ji,jj,jk) = xkr_wsbio_min * ( zeps - zval1 ) / zdiv & |
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| 141 | & - xkr_wsbio_max * zgm * xkr_eta / zdiv |
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| 142 | wsbio4(ji,jj,jk) = xkr_wsbio_min * ( zeps-1. ) / zdiv1 & |
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| 143 | & - xkr_wsbio_max * zfm * xkr_eta / zdiv1 |
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| 144 | IF( znum == 1.1) wsbio3(ji,jj,jk) = wsbio4(ji,jj,jk) |
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| 145 | ENDIF |
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| 146 | END DO |
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| 147 | END DO |
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| 148 | END DO |
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| 149 | |
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| 150 | wscal(:,:,:) = MAX( wsbio3(:,:,:), 50. ) |
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| 151 | |
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| 152 | |
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| 153 | ! INITIALIZE TO ZERO ALL THE SINKING ARRAYS |
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| 154 | ! ----------------------------------------- |
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| 155 | |
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| 156 | sinking (:,:,:) = 0.e0 |
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| 157 | sinking2(:,:,:) = 0.e0 |
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| 158 | sinkcal (:,:,:) = 0.e0 |
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| 159 | sinkfer (:,:,:) = 0.e0 |
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| 160 | sinksil (:,:,:) = 0.e0 |
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| 161 | |
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| 162 | ! Compute the sedimentation term using p4zsink2 for all |
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| 163 | ! the sinking particles |
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| 164 | ! ----------------------------------------------------- |
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| 165 | |
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| 166 | CALL p4z_sink2( wsbio3, sinking , jppoc ) |
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| 167 | CALL p4z_sink2( wsbio4, sinking2, jpnum ) |
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| 168 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe ) |
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| 169 | CALL p4z_sink2( wscal , sinksil , jpdsi ) |
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| 170 | CALL p4z_sink2( wscal , sinkcal , jpcal ) |
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| 171 | |
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| 172 | ! Exchange between organic matter compartments due to |
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| 173 | ! coagulation/disaggregation |
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| 174 | ! --------------------------------------------------- |
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| 175 | |
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| 176 | zval1 = 1. + xkr_zeta |
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| 177 | zval2 = 1. + xkr_eta |
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| 178 | zval3 = 3. + xkr_eta |
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| 179 | zval4 = 4. + xkr_eta |
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| 180 | |
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| 181 | DO jk = 1,jpkm1 |
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| 182 | DO jj = 1,jpj |
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| 183 | DO ji = 1,jpi |
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| 184 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
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| 185 | |
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| 186 | znum = trn(ji,jj,jk,jppoc)/(trn(ji,jj,jk,jpnum)+rtrn) / xkr_massp |
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| 187 | ! -------------- To avoid sinking speed over 50 m/day ------- |
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| 188 | znum = min(xnumm(jk),znum) |
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| 189 | znum = MAX( 1.1,znum) |
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| 190 | !------------------------------------------------------------ |
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| 191 | zeps = ( zval1 * znum - 1.) / ( znum - 1.) |
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| 192 | zdiv = MAX( 1.e-4, ABS( zeps - zval3) ) * SIGN( 1., zeps - zval3 ) |
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| 193 | zdiv1 = MAX( 1.e-4, ABS( zeps - 4. ) ) * SIGN( 1., zeps - 4. ) |
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| 194 | zdiv2 = zeps - 2. |
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| 195 | zdiv3 = zeps - 3. |
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| 196 | zdiv4 = zeps - zval2 |
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| 197 | zdiv5 = 2.* zeps - zval4 |
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| 198 | zfm = xkr_frac**( 1.- zeps ) |
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| 199 | zsm = xkr_frac**xkr_eta |
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| 200 | |
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| 201 | ! Part I : Coagulation dependant on turbulence |
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| 202 | ! ---------------------------------------------- |
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| 203 | |
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| 204 | zagg1 = ( 0.163 * trn(ji,jj,jk,jpnum)**2 & |
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| 205 | & * 2.*( (zfm-1.)*(zfm*xkr_mass_max**3-xkr_mass_min**3) & |
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| 206 | & * (zeps-1)/zdiv1 + 3.*(zfm*xkr_mass_max-xkr_mass_min) & |
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| 207 | & * (zfm*xkr_mass_max**2-xkr_mass_min**2) & |
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| 208 | & * (zeps-1.)**2/(zdiv2*zdiv3)) & |
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| 209 | # if defined key_off_degrad |
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| 210 | & *facvol(ji,jj,jk) & |
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| 211 | # endif |
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| 212 | & ) |
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| 213 | |
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| 214 | zagg2 = ( 2*0.163*trn(ji,jj,jk,jpnum)**2*zfm* & |
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| 215 | & ((xkr_mass_max**3+3.*(xkr_mass_max**2 & |
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| 216 | & *xkr_mass_min*(zeps-1.)/zdiv2 & |
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| 217 | & +xkr_mass_max*xkr_mass_min**2*(zeps-1.)/zdiv3) & |
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| 218 | & +xkr_mass_min**3*(zeps-1)/zdiv1) & |
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| 219 | & -zfm*xkr_mass_max**3*(1.+3.*((zeps-1.)/ & |
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| 220 | & (zeps-2.)+(zeps-1.)/zdiv3)+(zeps-1.)/zdiv1)) & |
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| 221 | # if defined key_off_degrad |
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| 222 | & *facvol(ji,jj,jk) & |
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| 223 | # endif |
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| 224 | & ) |
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| 225 | |
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| 226 | zagg3 = ( 0.163*trn(ji,jj,jk,jpnum)**2*zfm**2*8. * xkr_mass_max**3 & |
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| 227 | # if defined key_off_degrad |
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| 228 | & *facvol(ji,jj,jk) & |
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| 229 | # endif |
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| 230 | & ) |
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| 231 | |
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| 232 | zaggsh = ( zagg1 + zagg2 + zagg3 ) * rfact2 * xdiss(ji,jj,jk) / 1000. |
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| 233 | |
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| 234 | ! Aggregation of small into large particles |
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| 235 | ! Part II : Differential settling |
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| 236 | ! ---------------------------------------------- |
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| 237 | |
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| 238 | zagg4 = ( 2.*3.141*0.125*trn(ji,jj,jk,jpnum)**2* & |
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| 239 | & xkr_wsbio_min*(zeps-1.)**2 & |
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| 240 | & *(xkr_mass_min**2*((1.-zsm*zfm)/(zdiv3*zdiv4) & |
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| 241 | & -(1.-zfm)/(zdiv*(zeps-1.)))- & |
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| 242 | & ((zfm*zfm*xkr_mass_max**2*zsm-xkr_mass_min**2) & |
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| 243 | & *xkr_eta)/(zdiv*zdiv3*zdiv5) ) & |
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| 244 | # if defined key_off_degrad |
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| 245 | & *facvol(ji,jj,jk) & |
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| 246 | # endif |
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| 247 | & ) |
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| 248 | |
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| 249 | zagg5 = ( 2.*3.141*0.125*trn(ji,jj,jk,jpnum)**2 & |
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| 250 | & *(zeps-1.)*zfm*xkr_wsbio_min & |
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| 251 | & *(zsm*(xkr_mass_min**2-zfm*xkr_mass_max**2) & |
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| 252 | & /zdiv3-(xkr_mass_min**2-zfm*zsm*xkr_mass_max**2) & |
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| 253 | & /zdiv) & |
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| 254 | # if defined key_off_degrad |
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| 255 | & *facvol(ji,jj,jk) & |
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| 256 | # endif |
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| 257 | & ) |
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| 258 | |
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[1264] | 259 | zaggsi = ( zagg4 + zagg5 ) * xstep / 10. |
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[935] | 260 | |
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| 261 | zagg = 0.5 * xkr_stick * ( zaggsh + zaggsi ) |
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| 262 | |
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| 263 | ! Aggregation of DOC to small particles |
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| 264 | ! -------------------------------------- |
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| 265 | |
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| 266 | zaggdoc = ( 0.4 * trn(ji,jj,jk,jpdoc) & |
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[1264] | 267 | & + 1018. * trn(ji,jj,jk,jppoc) ) * xstep & |
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[935] | 268 | # if defined key_off_degrad |
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| 269 | & * facvol(ji,jj,jk) & |
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| 270 | # endif |
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| 271 | & * xdiss(ji,jj,jk) * trn(ji,jj,jk,jpdoc) |
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| 272 | |
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| 273 | znumdoc = trn(ji,jj,jk,jpnum) / ( trn(ji,jj,jk,jppoc) + rtrn ) |
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| 274 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zaggdoc |
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| 275 | tra(ji,jj,jk,jpnum) = tra(ji,jj,jk,jpnum) + zaggdoc * znumdoc - zagg |
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| 276 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc |
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| 277 | |
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| 278 | ENDIF |
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| 279 | END DO |
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| 280 | END DO |
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| 281 | END DO |
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| 282 | |
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[1329] | 283 | #if defined key_trc_diaadd |
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[935] | 284 | zrfact2 = 1.e3 * rfact2r |
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[1830] | 285 | ik1 = iksed + 1 |
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[1457] | 286 | # if ! defined key_iomput |
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[1830] | 287 | trc2d(:,: ,jp_pcs0_2d + 4) = sinking (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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| 288 | trc2d(:,: ,jp_pcs0_2d + 5) = sinking2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
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| 289 | trc2d(:,: ,jp_pcs0_2d + 6) = sinkfer (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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| 290 | trc2d(:,: ,jp_pcs0_2d + 7) = sinksil (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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| 291 | trc2d(:,: ,jp_pcs0_2d + 8) = sinkcal (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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[1457] | 292 | trc3d(:,:,:,jp_pcs0_3d + 11) = sinking (:,:,:) * zrfact2 * tmask(:,:,:) |
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| 293 | trc3d(:,:,:,jp_pcs0_3d + 12) = sinking2(:,:,:) * zrfact2 * tmask(:,:,:) |
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| 294 | trc3d(:,:,:,jp_pcs0_3d + 13) = sinksil (:,:,:) * zrfact2 * tmask(:,:,:) |
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| 295 | trc3d(:,:,:,jp_pcs0_3d + 14) = sinkcal (:,:,:) * zrfact2 * tmask(:,:,:) |
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| 296 | trc3d(:,:,:,jp_pcs0_3d + 15) = znum3d (:,:,:) * tmask(:,:,:) |
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| 297 | trc3d(:,:,:,jp_pcs0_3d + 16) = wsbio3 (:,:,:) * tmask(:,:,:) |
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| 298 | trc3d(:,:,:,jp_pcs0_3d + 17) = wsbio4 (:,:,:) * tmask(:,:,:) |
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| 299 | #else |
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[1830] | 300 | IF( jnt == nrdttrc ) then |
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| 301 | CALL iom_put( "POCFlx" , sinking (:,:,:) * zrfact2 * tmask(:,:,:) ) ! POC export |
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| 302 | CALL iom_put( "NumFlx" , sinking2 (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Num export |
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| 303 | CALL iom_put( "SiFlx" , sinksil (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Silica export |
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| 304 | CALL iom_put( "CaCO3Flx", sinkcal (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Calcite export |
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| 305 | CALL iom_put( "xnum" , znum3d (:,:,:) * tmask(:,:,:) ) ! Number of particles in aggregats |
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| 306 | CALL iom_put( "W1" , wsbio3 (:,:,:) * tmask(:,:,:) ) ! sinking speed of POC |
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| 307 | CALL iom_put( "W2" , wsbio4 (:,:,:) * tmask(:,:,:) ) ! sinking speed of aggregats |
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| 308 | CALL iom_put( "PMO" , sinking (:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! POC export at 100m |
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| 309 | CALL iom_put( "PMO2" , sinking2(:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Num export at 100m |
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| 310 | CALL iom_put( "ExpFe1" , sinkfer (:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Export of iron at 100m |
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| 311 | CALL iom_put( "ExpSi" , sinksil (:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! export of silica at 100m |
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| 312 | CALL iom_put( "ExpCaCO3", sinkcal (:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! export of calcite at 100m |
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| 313 | ENDIF |
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[1329] | 314 | # endif |
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| 315 | |
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| 316 | #endif |
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[935] | 317 | ! |
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| 318 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 319 | WRITE(charout, FMT="('sink')") |
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| 320 | CALL prt_ctl_trc_info(charout) |
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| 321 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 322 | ENDIF |
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| 323 | |
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| 324 | END SUBROUTINE p4z_sink |
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| 325 | |
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| 326 | SUBROUTINE p4z_sink_init |
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| 327 | !!---------------------------------------------------------------------- |
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| 328 | !! *** ROUTINE p4z_sink_init *** |
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| 329 | !! |
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| 330 | !! ** Purpose : Initialization of sinking parameters |
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| 331 | !! Kriest parameterization only |
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| 332 | !! |
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[1119] | 333 | !! ** Method : Read the nampiskrs namelist and check the parameters |
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[935] | 334 | !! called at the first timestep (nittrc000) |
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| 335 | !! |
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[1119] | 336 | !! ** input : Namelist nampiskrs |
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[935] | 337 | !! |
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| 338 | !!---------------------------------------------------------------------- |
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| 339 | INTEGER :: jk, jn, kiter |
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| 340 | REAL(wp) :: znum, zdiv |
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| 341 | REAL(wp) :: zws, zwr, zwl,wmax, znummax |
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| 342 | REAL(wp) :: zmin, zmax, zl, zr, xacc |
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| 343 | |
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[1119] | 344 | NAMELIST/nampiskrs/ xkr_sfact, xkr_stick , & |
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[935] | 345 | & xkr_nnano, xkr_ndiat, xkr_nmeso, xkr_naggr |
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| 346 | |
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| 347 | !!---------------------------------------------------------------------- |
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[1119] | 348 | REWIND( numnat ) ! read nampiskrs |
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| 349 | READ ( numnat, nampiskrs ) |
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[935] | 350 | |
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| 351 | IF(lwp) THEN |
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| 352 | WRITE(numout,*) |
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[1119] | 353 | WRITE(numout,*) ' Namelist : nampiskrs' |
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[935] | 354 | WRITE(numout,*) ' Sinking factor xkr_sfact = ', xkr_sfact |
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| 355 | WRITE(numout,*) ' Stickiness xkr_stick = ', xkr_stick |
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| 356 | WRITE(numout,*) ' Nbr of cell in nano size class xkr_nnano = ', xkr_nnano |
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| 357 | WRITE(numout,*) ' Nbr of cell in diatoms size class xkr_ndiat = ', xkr_ndiat |
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| 358 | WRITE(numout,*) ' Nbr of cell in mesozoo size class xkr_nmeso = ', xkr_nmeso |
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| 359 | WRITE(numout,*) ' Nbr of cell in aggregates size class xkr_naggr = ', xkr_naggr |
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| 360 | ENDIF |
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| 361 | |
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| 362 | |
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| 363 | ! max and min vertical particle speed |
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| 364 | xkr_wsbio_min = xkr_sfact * xkr_mass_min**xkr_eta |
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| 365 | xkr_wsbio_max = xkr_sfact * xkr_mass_max**xkr_eta |
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| 366 | WRITE(numout,*) ' max and min vertical particle speed ', xkr_wsbio_min, xkr_wsbio_max |
---|
| 367 | |
---|
| 368 | ! |
---|
| 369 | ! effect of the sizes of the different living pools on particle numbers |
---|
| 370 | ! nano = 2um-20um -> mean size=6.32 um -> ws=2.596 -> xnum=xnnano=2.337 |
---|
| 371 | ! diat and microzoo = 10um-200um -> 44.7 -> 8.732 -> xnum=xndiat=3.718 |
---|
| 372 | ! mesozoo = 200um-2mm -> 632.45 -> 45.14 -> xnum=xnmeso=7.147 |
---|
| 373 | ! aggregates = 200um-10mm -> 1414 -> 74.34 -> xnum=xnaggr=9.877 |
---|
| 374 | ! doc aggregates = 1um |
---|
| 375 | ! ---------------------------------------------------------- |
---|
| 376 | |
---|
| 377 | xkr_dnano = 1. / ( xkr_massp * xkr_nnano ) |
---|
| 378 | xkr_ddiat = 1. / ( xkr_massp * xkr_ndiat ) |
---|
| 379 | xkr_dmeso = 1. / ( xkr_massp * xkr_nmeso ) |
---|
| 380 | xkr_daggr = 1. / ( xkr_massp * xkr_naggr ) |
---|
| 381 | |
---|
| 382 | !!--------------------------------------------------------------------- |
---|
| 383 | !! 'key_kriest' ??? |
---|
| 384 | !!--------------------------------------------------------------------- |
---|
| 385 | ! COMPUTATION OF THE VERTICAL PROFILE OF MAXIMUM SINKING SPEED |
---|
| 386 | ! Search of the maximum number of particles in aggregates for each k-level. |
---|
| 387 | ! Bissection Method |
---|
| 388 | !-------------------------------------------------------------------- |
---|
| 389 | WRITE(numout,*) |
---|
| 390 | WRITE(numout,*)' kriest : Compute maximum number of particles in aggregates' |
---|
| 391 | |
---|
| 392 | xacc = 0.001 |
---|
| 393 | kiter = 50 |
---|
| 394 | zmin = 1.10 |
---|
| 395 | zmax = xkr_mass_max / xkr_mass_min |
---|
| 396 | xkr_frac = zmax |
---|
| 397 | |
---|
| 398 | DO jk = 1,jpk |
---|
| 399 | zl = zmin |
---|
| 400 | zr = zmax |
---|
[1736] | 401 | wmax = 0.5 * fse3t(1,1,jk) * rday / rfact2 |
---|
[935] | 402 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
| 403 | znum = zl - 1. |
---|
| 404 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 405 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 406 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 407 | & - wmax |
---|
| 408 | |
---|
| 409 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
| 410 | znum = zr - 1. |
---|
| 411 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 412 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 413 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 414 | & - wmax |
---|
| 415 | iflag: DO jn = 1, kiter |
---|
| 416 | IF( zwl == 0.e0 ) THEN |
---|
| 417 | znummax = zl |
---|
| 418 | ELSE IF ( zwr == 0.e0 ) THEN |
---|
| 419 | znummax = zr |
---|
| 420 | ELSE |
---|
| 421 | znummax = ( zr + zl ) / 2. |
---|
| 422 | zdiv = xkr_zeta + xkr_eta - xkr_eta * znummax |
---|
| 423 | znum = znummax - 1. |
---|
| 424 | zws = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 425 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 426 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 427 | & - wmax |
---|
| 428 | IF( zws * zwl < 0. ) THEN |
---|
| 429 | zr = znummax |
---|
| 430 | ELSE |
---|
| 431 | zl = znummax |
---|
| 432 | ENDIF |
---|
| 433 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
| 434 | znum = zl - 1. |
---|
| 435 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 436 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 437 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 438 | & - wmax |
---|
| 439 | |
---|
| 440 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
| 441 | znum = zr - 1. |
---|
| 442 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 443 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 444 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 445 | & - wmax |
---|
| 446 | |
---|
| 447 | IF ( ABS ( zws ) <= xacc ) EXIT iflag |
---|
| 448 | |
---|
| 449 | ENDIF |
---|
| 450 | |
---|
| 451 | END DO iflag |
---|
| 452 | |
---|
| 453 | xnumm(jk) = znummax |
---|
| 454 | WRITE(numout,*) ' jk = ', jk, ' wmax = ', wmax,' xnum max = ', xnumm(jk) |
---|
| 455 | |
---|
| 456 | END DO |
---|
| 457 | |
---|
| 458 | END SUBROUTINE p4z_sink_init |
---|
| 459 | |
---|
| 460 | #else |
---|
| 461 | |
---|
| 462 | SUBROUTINE p4z_sink ( kt, jnt ) |
---|
| 463 | !!--------------------------------------------------------------------- |
---|
| 464 | !! *** ROUTINE p4z_sink *** |
---|
| 465 | !! |
---|
| 466 | !! ** Purpose : Compute vertical flux of particulate matter due to |
---|
| 467 | !! gravitational sinking |
---|
| 468 | !! |
---|
| 469 | !! ** Method : - ??? |
---|
| 470 | !!--------------------------------------------------------------------- |
---|
| 471 | INTEGER, INTENT(in) :: kt, jnt |
---|
| 472 | INTEGER :: ji, jj, jk |
---|
| 473 | REAL(wp) :: zagg1, zagg2, zagg3, zagg4 |
---|
| 474 | REAL(wp) :: zagg , zaggfe, zaggdoc, zaggdoc2 |
---|
[1264] | 475 | REAL(wp) :: zfact, zwsmax |
---|
[935] | 476 | #if defined key_trc_dia3d |
---|
| 477 | REAL(wp) :: zrfact2 |
---|
[1830] | 478 | INTEGER :: ik1 |
---|
[935] | 479 | #endif |
---|
| 480 | CHARACTER (len=25) :: charout |
---|
| 481 | !!--------------------------------------------------------------------- |
---|
| 482 | |
---|
[1264] | 483 | IF( ( kt * jnt ) == nittrc000 ) THEN |
---|
[1736] | 484 | xstep = rfact2 / rday ! Timestep duration for biology |
---|
[1264] | 485 | xstep2 = rfact2 / 2. |
---|
| 486 | ENDIF |
---|
[935] | 487 | |
---|
| 488 | ! Sinking speeds of detritus is increased with depth as shown |
---|
| 489 | ! by data and from the coagulation theory |
---|
| 490 | ! ----------------------------------------------------------- |
---|
| 491 | DO jk = 1, jpkm1 |
---|
| 492 | DO jj = 1, jpj |
---|
| 493 | DO ji=1,jpi |
---|
| 494 | zfact = MAX( 0., fsdepw(ji,jj,jk+1)-hmld(ji,jj) ) / 4000. |
---|
| 495 | wsbio4(ji,jj,jk) = wsbio2 + ( 200.- wsbio2 ) * zfact |
---|
| 496 | END DO |
---|
| 497 | END DO |
---|
| 498 | END DO |
---|
| 499 | |
---|
| 500 | ! LIMIT THE VALUES OF THE SINKING SPEEDS |
---|
| 501 | ! TO AVOID NUMERICAL INSTABILITIES |
---|
| 502 | |
---|
| 503 | wsbio3(:,:,:) = wsbio |
---|
| 504 | ! |
---|
| 505 | ! OA Below, this is garbage. the ideal would be to find a time-splitting |
---|
| 506 | ! OA algorithm that does not increase the computing cost by too much |
---|
| 507 | ! OA In ROMS, I have included a time-splitting procedure. But it is |
---|
| 508 | ! OA too expensive as the loop is computed globally. Thus, a small e3t |
---|
| 509 | ! OA at one place determines the number of subtimesteps globally |
---|
| 510 | ! OA AWFULLY EXPENSIVE !! Not able to find a better approach. Damned !! |
---|
| 511 | |
---|
| 512 | DO jk = 1,jpkm1 |
---|
| 513 | DO jj = 1, jpj |
---|
| 514 | DO ji = 1, jpi |
---|
[1264] | 515 | zwsmax = 0.8 * fse3t(ji,jj,jk) / xstep |
---|
[935] | 516 | wsbio4(ji,jj,jk) = MIN( wsbio4(ji,jj,jk), zwsmax ) |
---|
| 517 | wsbio3(ji,jj,jk) = MIN( wsbio3(ji,jj,jk), zwsmax ) |
---|
| 518 | END DO |
---|
| 519 | END DO |
---|
| 520 | END DO |
---|
| 521 | |
---|
| 522 | wscal(:,:,:) = wsbio4(:,:,:) |
---|
| 523 | |
---|
| 524 | ! INITIALIZE TO ZERO ALL THE SINKING ARRAYS |
---|
| 525 | ! ----------------------------------------- |
---|
| 526 | |
---|
| 527 | sinking (:,:,:) = 0.e0 |
---|
| 528 | sinking2(:,:,:) = 0.e0 |
---|
| 529 | sinkcal (:,:,:) = 0.e0 |
---|
| 530 | sinkfer (:,:,:) = 0.e0 |
---|
| 531 | sinksil (:,:,:) = 0.e0 |
---|
| 532 | sinkfer2(:,:,:) = 0.e0 |
---|
| 533 | |
---|
| 534 | ! Compute the sedimentation term using p4zsink2 for all |
---|
| 535 | ! the sinking particles |
---|
| 536 | ! ----------------------------------------------------- |
---|
| 537 | |
---|
| 538 | CALL p4z_sink2( wsbio3, sinking , jppoc ) |
---|
| 539 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe ) |
---|
| 540 | CALL p4z_sink2( wsbio4, sinking2, jpgoc ) |
---|
| 541 | CALL p4z_sink2( wsbio4, sinkfer2, jpbfe ) |
---|
| 542 | CALL p4z_sink2( wsbio4, sinksil , jpdsi ) |
---|
| 543 | CALL p4z_sink2( wscal , sinkcal , jpcal ) |
---|
| 544 | |
---|
| 545 | ! Exchange between organic matter compartments due to |
---|
| 546 | ! coagulation/disaggregation |
---|
| 547 | ! --------------------------------------------------- |
---|
| 548 | |
---|
| 549 | DO jk = 1, jpkm1 |
---|
| 550 | DO jj = 1, jpj |
---|
| 551 | DO ji = 1, jpi |
---|
[1264] | 552 | zfact = xstep * xdiss(ji,jj,jk) |
---|
[1457] | 553 | ! Part I : Coagulation dependent on turbulence |
---|
[935] | 554 | # if defined key_off_degrad |
---|
| 555 | zagg1 = 940.* zfact * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jppoc) * facvol(ji,jj,jk) |
---|
[1457] | 556 | zagg2 = 1.054e4 * zfact * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpgoc) * facvol(ji,jj,jk) |
---|
[935] | 557 | # else |
---|
| 558 | zagg1 = 940.* zfact * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jppoc) |
---|
| 559 | zagg2 = 1.054e4 * zfact * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpgoc) |
---|
| 560 | # endif |
---|
| 561 | |
---|
[1457] | 562 | ! Part II : Differential settling |
---|
[935] | 563 | |
---|
[1457] | 564 | ! Aggregation of small into large particles |
---|
[935] | 565 | # if defined key_off_degrad |
---|
[1264] | 566 | zagg3 = 0.66 * xstep * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpgoc) * facvol(ji,jj,jk) |
---|
[1457] | 567 | zagg4 = 0.e0 * xstep * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jppoc) * facvol(ji,jj,jk) |
---|
[935] | 568 | # else |
---|
[1264] | 569 | zagg3 = 0.66 * xstep * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jpgoc) |
---|
| 570 | zagg4 = 0.e0 * xstep * trn(ji,jj,jk,jppoc) * trn(ji,jj,jk,jppoc) |
---|
[935] | 571 | # endif |
---|
| 572 | zagg = zagg1 + zagg2 + zagg3 + zagg4 |
---|
| 573 | zaggfe = zagg * trn(ji,jj,jk,jpsfe) / ( trn(ji,jj,jk,jppoc) + rtrn ) |
---|
| 574 | |
---|
[1457] | 575 | ! Aggregation of DOC to small particles |
---|
| 576 | #if defined key_off_degrad |
---|
[935] | 577 | zaggdoc = ( 80.* trn(ji,jj,jk,jpdoc) + 698. * trn(ji,jj,jk,jppoc) ) & |
---|
[1457] | 578 | & * facvol(ji,jj,jk) * zfact * trn(ji,jj,jk,jpdoc) |
---|
[935] | 579 | zaggdoc2 = 1.05e4 * zfact * trn(ji,jj,jk,jpgoc) & |
---|
[1457] | 580 | & * facvol(ji,jj,jk) * trn(ji,jj,jk,jpdoc) |
---|
| 581 | #else |
---|
| 582 | zaggdoc = ( 80.* trn(ji,jj,jk,jpdoc) + 698. * trn(ji,jj,jk,jppoc) ) & |
---|
| 583 | & * zfact * trn(ji,jj,jk,jpdoc) |
---|
| 584 | zaggdoc2 = 1.05e4 * zfact * trn(ji,jj,jk,jpgoc) * trn(ji,jj,jk,jpdoc) |
---|
| 585 | #endif |
---|
| 586 | ! Update the trends |
---|
[935] | 587 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zagg + zaggdoc |
---|
| 588 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zagg + zaggdoc2 |
---|
| 589 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
---|
| 590 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
---|
| 591 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 |
---|
[1457] | 592 | ! |
---|
[935] | 593 | END DO |
---|
| 594 | END DO |
---|
| 595 | END DO |
---|
| 596 | |
---|
[1457] | 597 | #if defined key_trc_diaadd |
---|
[935] | 598 | zrfact2 = 1.e3 * rfact2r |
---|
[1830] | 599 | ik1 = iksed + 1 |
---|
[1457] | 600 | # if ! defined key_iomput |
---|
[1830] | 601 | trc2d(:,:,jp_pcs0_2d + 4) = sinking (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
| 602 | trc2d(:,:,jp_pcs0_2d + 5) = sinking2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
| 603 | trc2d(:,:,jp_pcs0_2d + 6) = sinkfer (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
| 604 | trc2d(:,:,jp_pcs0_2d + 7) = sinkfer2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
| 605 | trc2d(:,:,jp_pcs0_2d + 8) = sinksil (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
| 606 | trc2d(:,:,jp_pcs0_2d + 9) = sinkcal (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
[1457] | 607 | # else |
---|
[1830] | 608 | IF( jnt == nrdttrc ) then |
---|
| 609 | CALL iom_put( "EPC100" , ( sinking(:,:,ik1) + sinking2(:,:,ik1) ) * zrfact2 * tmask(:,:,1) ) ! Export of carbon at 100m |
---|
| 610 | CALL iom_put( "EPFE100" , ( sinkfer(:,:,ik1) + sinkfer2(:,:,ik1) ) * zrfact2 * tmask(:,:,1) ) ! Export of iron at 100m |
---|
| 611 | CALL iom_put( "EPCAL100", sinkcal(:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Export of calcite at 100m |
---|
| 612 | CALL iom_put( "EPSI100" , sinksil(:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Export of biogenic silica at 100m |
---|
| 613 | #if defined key_diaar5 |
---|
| 614 | CALL iom_put( "EXPC" , ( sinking(:,:,: ) + sinking2(:,:,: ) ) * zrfact2 * tmask(:,:,:) ) ! Export of carbon |
---|
| 615 | CALL iom_put( "EXPFE" , ( sinkfer(:,:,: ) + sinkfer2(:,:,: ) ) * zrfact2 * tmask(:,:,:) ) ! Export of iron |
---|
| 616 | CALL iom_put( "EXPCAL" , sinkcal(:,:,: ) * zrfact2 * tmask(:,:,:) ) ! Export of calcite |
---|
| 617 | CALL iom_put( "EXPSI" , sinksil(:,:,: ) * zrfact2 * tmask(:,:,:) ) ! Export of biogenic |
---|
[1457] | 618 | #endif |
---|
[1830] | 619 | ENDIF |
---|
| 620 | #endif |
---|
| 621 | #endif |
---|
[935] | 622 | ! |
---|
| 623 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
| 624 | WRITE(charout, FMT="('sink')") |
---|
| 625 | CALL prt_ctl_trc_info(charout) |
---|
| 626 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
| 627 | ENDIF |
---|
| 628 | |
---|
| 629 | END SUBROUTINE p4z_sink |
---|
| 630 | |
---|
| 631 | #endif |
---|
| 632 | |
---|
[1073] | 633 | SUBROUTINE p4z_sink2( pwsink, psinkflx, jp_tra ) |
---|
| 634 | !!--------------------------------------------------------------------- |
---|
| 635 | !! *** ROUTINE p4z_sink2 *** |
---|
| 636 | !! |
---|
| 637 | !! ** Purpose : Compute the sedimentation terms for the various sinking |
---|
| 638 | !! particles. The scheme used to compute the trends is based |
---|
| 639 | !! on MUSCL. |
---|
| 640 | !! |
---|
| 641 | !! ** Method : - this ROUTINE compute not exactly the advection but the |
---|
| 642 | !! transport term, i.e. div(u*tra). |
---|
| 643 | !!--------------------------------------------------------------------- |
---|
| 644 | INTEGER , INTENT(in ) :: jp_tra ! tracer index index |
---|
| 645 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj,jpk) :: pwsink ! sinking speed |
---|
| 646 | REAL(wp), INTENT(inout), DIMENSION(jpi,jpj,jpk) :: psinkflx ! sinking fluxe |
---|
| 647 | !! |
---|
| 648 | INTEGER :: ji, jj, jk, jn |
---|
[1264] | 649 | REAL(wp) :: zigma,zew,zign, zflx |
---|
[1073] | 650 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztraz, zakz |
---|
| 651 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zwsink2 |
---|
| 652 | !!--------------------------------------------------------------------- |
---|
| 653 | |
---|
| 654 | |
---|
| 655 | ztraz(:,:,:) = 0.e0 |
---|
| 656 | zakz (:,:,:) = 0.e0 |
---|
| 657 | |
---|
| 658 | DO jk = 1, jpkm1 |
---|
| 659 | # if defined key_off_degrad |
---|
[1736] | 660 | zwsink2(:,:,jk+1) = -pwsink(:,:,jk) / rday * tmask(:,:,jk+1) * facvol(:,:,jk) |
---|
[1073] | 661 | # else |
---|
[1736] | 662 | zwsink2(:,:,jk+1) = -pwsink(:,:,jk) / rday * tmask(:,:,jk+1) |
---|
[1073] | 663 | # endif |
---|
| 664 | END DO |
---|
| 665 | zwsink2(:,:,1) = 0.e0 |
---|
| 666 | |
---|
| 667 | |
---|
| 668 | ! Vertical advective flux |
---|
| 669 | DO jn = 1, 2 |
---|
| 670 | ! first guess of the slopes interior values |
---|
| 671 | DO jk = 2, jpkm1 |
---|
| 672 | ztraz(:,:,jk) = ( trn(:,:,jk-1,jp_tra) - trn(:,:,jk,jp_tra) ) * tmask(:,:,jk) |
---|
| 673 | END DO |
---|
| 674 | ztraz(:,:,1 ) = 0.0 |
---|
| 675 | ztraz(:,:,jpk) = 0.0 |
---|
| 676 | |
---|
| 677 | ! slopes |
---|
| 678 | DO jk = 2, jpkm1 |
---|
| 679 | DO jj = 1,jpj |
---|
| 680 | DO ji = 1, jpi |
---|
| 681 | zign = 0.25 + SIGN( 0.25, ztraz(ji,jj,jk) * ztraz(ji,jj,jk+1) ) |
---|
| 682 | zakz(ji,jj,jk) = ( ztraz(ji,jj,jk) + ztraz(ji,jj,jk+1) ) * zign |
---|
| 683 | END DO |
---|
| 684 | END DO |
---|
| 685 | END DO |
---|
| 686 | |
---|
| 687 | ! Slopes limitation |
---|
| 688 | DO jk = 2, jpkm1 |
---|
| 689 | DO jj = 1, jpj |
---|
| 690 | DO ji = 1, jpi |
---|
| 691 | zakz(ji,jj,jk) = SIGN( 1., zakz(ji,jj,jk) ) * & |
---|
| 692 | & MIN( ABS( zakz(ji,jj,jk) ), 2. * ABS(ztraz(ji,jj,jk+1)), 2. * ABS(ztraz(ji,jj,jk) ) ) |
---|
| 693 | END DO |
---|
| 694 | END DO |
---|
| 695 | END DO |
---|
| 696 | |
---|
| 697 | ! vertical advective flux |
---|
| 698 | DO jk = 1, jpkm1 |
---|
| 699 | DO jj = 1, jpj |
---|
| 700 | DO ji = 1, jpi |
---|
[1264] | 701 | zigma = zwsink2(ji,jj,jk+1) * xstep2 / fse3w(ji,jj,jk+1) |
---|
[1073] | 702 | zew = zwsink2(ji,jj,jk+1) |
---|
[1264] | 703 | psinkflx(ji,jj,jk+1) = -zew * ( trn(ji,jj,jk,jp_tra) - 0.5 * ( 1 + zigma ) * zakz(ji,jj,jk) ) * xstep2 |
---|
[1073] | 704 | END DO |
---|
| 705 | END DO |
---|
| 706 | END DO |
---|
| 707 | ! |
---|
| 708 | ! Boundary conditions |
---|
| 709 | psinkflx(:,:,1 ) = 0.e0 |
---|
| 710 | psinkflx(:,:,jpk) = 0.e0 |
---|
| 711 | |
---|
| 712 | DO jk=1,jpkm1 |
---|
| 713 | DO jj = 1,jpj |
---|
| 714 | DO ji = 1, jpi |
---|
| 715 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
---|
| 716 | trn(ji,jj,jk,jp_tra) = trn(ji,jj,jk,jp_tra) + zflx |
---|
| 717 | END DO |
---|
| 718 | END DO |
---|
| 719 | END DO |
---|
| 720 | |
---|
| 721 | ENDDO |
---|
| 722 | |
---|
| 723 | DO jk=1,jpkm1 |
---|
| 724 | DO jj = 1,jpj |
---|
| 725 | DO ji = 1, jpi |
---|
| 726 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
---|
| 727 | trb(ji,jj,jk,jp_tra) = trb(ji,jj,jk,jp_tra) + 2. * zflx |
---|
| 728 | END DO |
---|
| 729 | END DO |
---|
| 730 | END DO |
---|
| 731 | |
---|
| 732 | trn(:,:,:,jp_tra) = trb(:,:,:,jp_tra) |
---|
| 733 | psinkflx(:,:,:) = 2. * psinkflx(:,:,:) |
---|
| 734 | |
---|
| 735 | ! |
---|
| 736 | END SUBROUTINE p4z_sink2 |
---|
| 737 | |
---|
[935] | 738 | #else |
---|
| 739 | !!====================================================================== |
---|
| 740 | !! Dummy module : No PISCES bio-model |
---|
| 741 | !!====================================================================== |
---|
| 742 | CONTAINS |
---|
| 743 | SUBROUTINE p4z_sink ! Empty routine |
---|
| 744 | END SUBROUTINE p4z_sink |
---|
| 745 | #endif |
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| 746 | |
---|
| 747 | !!====================================================================== |
---|
| 748 | END MODULE p4zsink |
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