[7162] | 1 | MODULE p4zagg |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4zagg *** |
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| 4 | !! TOP : PISCES aggregation of particles |
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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 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Change aggregation formula |
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| 9 | !! 3.5 ! 2012-07 (O. Aumont) Introduce potential time-splitting |
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[7176] | 10 | !! 3.6 ! 2015-05 (O. Aumont) PISCES quota |
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[7162] | 11 | !!---------------------------------------------------------------------- |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! p4z_agg : Compute aggregation of particles |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 16 | USE trc ! passive tracers common variables |
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| 17 | USE sms_pisces ! PISCES Source Minus Sink variables |
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| 18 | USE prtctl_trc ! print control for debugging |
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| 19 | |
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| 20 | IMPLICIT NONE |
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| 21 | PRIVATE |
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| 22 | |
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| 23 | PUBLIC p4z_agg ! called in p4zbio.F90 |
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| 24 | |
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| 25 | !!---------------------------------------------------------------------- |
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| 26 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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| 27 | !! $Id: p4zagg.F90 3160 2011-11-20 14:27:18Z cetlod $ |
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| 28 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 29 | !!---------------------------------------------------------------------- |
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| 30 | CONTAINS |
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| 31 | |
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| 32 | SUBROUTINE p4z_agg ( kt, knt ) |
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| 33 | !!--------------------------------------------------------------------- |
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| 34 | !! *** ROUTINE p4z_agg *** |
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| 35 | !! |
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| 36 | !! ** Purpose : Compute aggregation of particles |
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| 37 | !! |
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| 38 | !! ** Method : - ??? |
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| 39 | !!--------------------------------------------------------------------- |
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| 40 | INTEGER, INTENT(in) :: kt, knt |
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| 41 | INTEGER :: ji, jj, jk |
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[7176] | 42 | REAL(wp) :: zagg, zagg1, zagg2, zagg3, zagg4 |
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| 43 | REAL(wp) :: zaggpoc1, zaggpoc2, zaggpoc3, zaggpoc4 |
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| 44 | REAL(wp) :: zaggpoc , zaggfe, zaggdoc, zaggdoc2, zaggdoc3 |
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| 45 | REAL(wp) :: zaggpon , zaggdon, zaggdon2, zaggdon3 |
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| 46 | REAL(wp) :: zaggpop, zaggdop, zaggdop2, zaggdop3 |
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| 47 | REAL(wp) :: zaggtmp, zfact, zmax |
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[7162] | 48 | CHARACTER (len=25) :: charout |
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| 49 | !!--------------------------------------------------------------------- |
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| 50 | ! |
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| 51 | IF( nn_timing == 1 ) CALL timing_start('p4z_agg') |
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| 52 | |
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| 53 | ! |
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| 54 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
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| 55 | ! --------------------------------------------------- |
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[7176] | 56 | IF( ln_p4z ) THEN |
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| 57 | ! |
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| 58 | DO jk = 1, jpkm1 |
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| 59 | DO jj = 1, jpj |
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| 60 | DO ji = 1, jpi |
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| 61 | ! |
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| 62 | zfact = xstep * xdiss(ji,jj,jk) |
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| 63 | ! Part I : Coagulation dependent on turbulence |
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| 64 | zagg1 = 25.9 * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
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| 65 | zagg2 = 4452. * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
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[7162] | 66 | |
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[7176] | 67 | ! Part II : Differential settling |
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[7162] | 68 | |
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[7176] | 69 | ! Aggregation of small into large particles |
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| 70 | zagg3 = 47.1 * xstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
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| 71 | zagg4 = 3.3 * xstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
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[7162] | 72 | |
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[7176] | 73 | zagg = zagg1 + zagg2 + zagg3 + zagg4 |
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| 74 | zaggfe = zagg * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
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[7162] | 75 | |
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[7176] | 76 | ! Aggregation of DOC to POC : |
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| 77 | ! 1st term is shear aggregation of DOC-DOC |
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| 78 | ! 2nd term is shear aggregation of DOC-POC |
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| 79 | ! 3rd term is differential settling of DOC-POC |
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| 80 | zaggdoc = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
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| 81 | & + 2.4 * xstep * trb(ji,jj,jk,jppoc) ) * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 82 | ! transfer of DOC to GOC : |
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| 83 | ! 1st term is shear aggregation |
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| 84 | ! 2nd term is differential settling |
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| 85 | zaggdoc2 = ( 3.53E3 * zfact + 0.1 * xstep ) * trb(ji,jj,jk,jpgoc) * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 86 | ! tranfer of DOC to POC due to brownian motion |
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| 87 | zaggdoc3 = 114. * 0.3 * trb(ji,jj,jk,jpdoc) *xstep * 0.3 * trb(ji,jj,jk,jpdoc) |
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[7162] | 88 | |
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[7176] | 89 | ! Update the trends |
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| 90 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zagg + zaggdoc + zaggdoc3 |
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| 91 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zagg + zaggdoc2 |
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| 92 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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| 93 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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| 94 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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| 95 | ! |
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| 96 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zagg + zaggdoc + zaggdoc3 |
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| 97 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zagg + zaggdoc2 |
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| 98 | ! |
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| 99 | END DO |
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[7162] | 100 | END DO |
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| 101 | END DO |
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[7176] | 102 | ELSE ! ln_p5z |
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| 103 | ! |
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| 104 | DO jk = 1, jpkm1 |
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| 105 | DO jj = 1, jpj |
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| 106 | DO ji = 1, jpi |
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| 107 | ! |
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| 108 | zfact = xstep * xdiss(ji,jj,jk) |
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| 109 | ! Part I : Coagulation dependent on turbulence |
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| 110 | zaggtmp = 25.9 * zfact * trb(ji,jj,jk,jppoc) |
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| 111 | zaggpoc1 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 112 | zaggtmp = 4452. * zfact * trb(ji,jj,jk,jpgoc) |
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| 113 | zaggpoc2 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 114 | |
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| 115 | ! Part II : Differential settling |
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| 116 | |
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| 117 | ! Aggregation of small into large particles |
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| 118 | zaggtmp = 47.1 * xstep * trb(ji,jj,jk,jpgoc) |
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| 119 | zaggpoc3 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 120 | zaggtmp = 3.3 * xstep * trb(ji,jj,jk,jppoc) |
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| 121 | zaggpoc4 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 122 | |
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| 123 | zaggpoc = zaggpoc1 + zaggpoc2 + zaggpoc3 + zaggpoc4 |
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| 124 | zaggpon = zaggpoc * trb(ji,jj,jk,jppon) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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| 125 | zaggpop = zaggpoc * trb(ji,jj,jk,jppop) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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| 126 | zaggfe = zaggpoc * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
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| 127 | |
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| 128 | ! Aggregation of DOC to POC : |
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| 129 | ! 1st term is shear aggregation of DOC-DOC |
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| 130 | ! 2nd term is shear aggregation of DOC-POC |
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| 131 | ! 3rd term is differential settling of DOC-POC |
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| 132 | zaggtmp = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
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| 133 | & + 2.4 * xstep * trb(ji,jj,jk,jppoc) ) |
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| 134 | zaggdoc = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 135 | zaggdon = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 136 | zaggdop = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 137 | |
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| 138 | ! transfer of DOC to GOC : |
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| 139 | ! 1st term is shear aggregation |
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| 140 | ! 2nd term is differential settling |
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| 141 | zaggtmp = ( 3.53E3 * zfact + 0.1 * xstep ) * trb(ji,jj,jk,jpgoc) |
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| 142 | zaggdoc2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 143 | zaggdon2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 144 | zaggdop2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 145 | |
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| 146 | ! tranfer of DOC to POC due to brownian motion |
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| 147 | zaggtmp = ( 114. * 0.3 * trb(ji,jj,jk,jpdoc) ) * xstep |
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| 148 | zaggdoc3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 149 | zaggdon3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 150 | zaggdop3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 151 | |
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| 152 | ! Update the trends |
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| 153 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zaggpoc + zaggdoc + zaggdoc3 |
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| 154 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) - zaggpon + zaggdon + zaggdon3 |
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| 155 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) - zaggpop + zaggdop + zaggdop3 |
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| 156 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zaggpoc + zaggdoc2 |
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| 157 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zaggpon + zaggdon2 |
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| 158 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + zaggpop + zaggdop2 |
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| 159 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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| 160 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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| 161 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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| 162 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) - zaggdon - zaggdon2 - zaggdon3 |
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| 163 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) - zaggdop - zaggdop2 - zaggdop3 |
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| 164 | ! |
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| 165 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zaggpoc + zaggdoc + zaggdoc3 |
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| 166 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zaggpoc + zaggdoc2 |
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| 167 | ! |
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| 168 | END DO |
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| 169 | END DO |
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| 170 | END DO |
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| 171 | ! |
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| 172 | ENDIF |
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[7162] | 173 | ! |
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| 174 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 175 | WRITE(charout, FMT="('agg')") |
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| 176 | CALL prt_ctl_trc_info(charout) |
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| 177 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 178 | ENDIF |
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| 179 | ! |
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| 180 | IF( nn_timing == 1 ) CALL timing_stop('p4z_agg') |
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| 181 | ! |
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| 182 | END SUBROUTINE p4z_agg |
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| 183 | |
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| 184 | !!====================================================================== |
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| 185 | END MODULE p4zagg |
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