[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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[9124] | 12 | |
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[7162] | 13 | !!---------------------------------------------------------------------- |
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| 14 | !! p4z_agg : Compute aggregation of particles |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 17 | USE trc ! passive tracers common variables |
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| 18 | USE sms_pisces ! PISCES Source Minus Sink variables |
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| 19 | USE prtctl_trc ! print control for debugging |
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| 20 | |
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| 21 | IMPLICIT NONE |
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| 22 | PRIVATE |
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| 23 | |
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| 24 | PUBLIC p4z_agg ! called in p4zbio.F90 |
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| 25 | |
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| 26 | !!---------------------------------------------------------------------- |
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[10067] | 27 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[10069] | 28 | !! $Id$ |
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[10068] | 29 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[7162] | 30 | !!---------------------------------------------------------------------- |
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| 31 | CONTAINS |
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| 32 | |
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| 33 | SUBROUTINE p4z_agg ( kt, knt ) |
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| 34 | !!--------------------------------------------------------------------- |
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| 35 | !! *** ROUTINE p4z_agg *** |
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| 36 | !! |
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| 37 | !! ** Purpose : Compute aggregation of particles |
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| 38 | !! |
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| 39 | !! ** Method : - ??? |
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| 40 | !!--------------------------------------------------------------------- |
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[9124] | 41 | INTEGER, INTENT(in) :: kt, knt ! |
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| 42 | ! |
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[7162] | 43 | INTEGER :: ji, jj, jk |
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[7176] | 44 | REAL(wp) :: zagg, zagg1, zagg2, zagg3, zagg4 |
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| 45 | REAL(wp) :: zaggpoc1, zaggpoc2, zaggpoc3, zaggpoc4 |
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| 46 | REAL(wp) :: zaggpoc , zaggfe, zaggdoc, zaggdoc2, zaggdoc3 |
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| 47 | REAL(wp) :: zaggpon , zaggdon, zaggdon2, zaggdon3 |
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| 48 | REAL(wp) :: zaggpop, zaggdop, zaggdop2, zaggdop3 |
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| 49 | REAL(wp) :: zaggtmp, zfact, zmax |
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[7162] | 50 | CHARACTER (len=25) :: charout |
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| 51 | !!--------------------------------------------------------------------- |
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| 52 | ! |
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[9124] | 53 | IF( ln_timing ) CALL timing_start('p4z_agg') |
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[7162] | 54 | ! |
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| 55 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
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| 56 | ! --------------------------------------------------- |
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[7176] | 57 | IF( ln_p4z ) THEN |
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| 58 | ! |
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| 59 | DO jk = 1, jpkm1 |
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| 60 | DO jj = 1, jpj |
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| 61 | DO ji = 1, jpi |
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| 62 | ! |
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| 63 | zfact = xstep * xdiss(ji,jj,jk) |
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| 64 | ! Part I : Coagulation dependent on turbulence |
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| 65 | zagg1 = 25.9 * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
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| 66 | zagg2 = 4452. * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
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[7162] | 67 | |
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[7176] | 68 | ! Part II : Differential settling |
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[7162] | 69 | |
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[7176] | 70 | ! Aggregation of small into large particles |
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| 71 | zagg3 = 47.1 * xstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
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| 72 | zagg4 = 3.3 * xstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
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[7162] | 73 | |
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[7176] | 74 | zagg = zagg1 + zagg2 + zagg3 + zagg4 |
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| 75 | zaggfe = zagg * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
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[7162] | 76 | |
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[7176] | 77 | ! Aggregation of DOC to POC : |
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| 78 | ! 1st term is shear aggregation of DOC-DOC |
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| 79 | ! 2nd term is shear aggregation of DOC-POC |
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| 80 | ! 3rd term is differential settling of DOC-POC |
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| 81 | zaggdoc = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
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| 82 | & + 2.4 * xstep * trb(ji,jj,jk,jppoc) ) * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 83 | ! transfer of DOC to GOC : |
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| 84 | ! 1st term is shear aggregation |
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| 85 | ! 2nd term is differential settling |
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| 86 | zaggdoc2 = ( 3.53E3 * zfact + 0.1 * xstep ) * trb(ji,jj,jk,jpgoc) * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 87 | ! tranfer of DOC to POC due to brownian motion |
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| 88 | zaggdoc3 = 114. * 0.3 * trb(ji,jj,jk,jpdoc) *xstep * 0.3 * trb(ji,jj,jk,jpdoc) |
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[7162] | 89 | |
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[7176] | 90 | ! Update the trends |
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| 91 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zagg + zaggdoc + zaggdoc3 |
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| 92 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zagg + zaggdoc2 |
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| 93 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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| 94 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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| 95 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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| 96 | ! |
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| 97 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zagg + zaggdoc + zaggdoc3 |
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| 98 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zagg + zaggdoc2 |
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| 99 | ! |
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| 100 | END DO |
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[7162] | 101 | END DO |
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| 102 | END DO |
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[7176] | 103 | ELSE ! ln_p5z |
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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 | ! |
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| 109 | zfact = xstep * xdiss(ji,jj,jk) |
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| 110 | ! Part I : Coagulation dependent on turbulence |
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| 111 | zaggtmp = 25.9 * zfact * trb(ji,jj,jk,jppoc) |
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| 112 | zaggpoc1 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 113 | zaggtmp = 4452. * zfact * trb(ji,jj,jk,jpgoc) |
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| 114 | zaggpoc2 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 115 | |
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| 116 | ! Part II : Differential settling |
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| 117 | |
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| 118 | ! Aggregation of small into large particles |
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| 119 | zaggtmp = 47.1 * xstep * trb(ji,jj,jk,jpgoc) |
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| 120 | zaggpoc3 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 121 | zaggtmp = 3.3 * xstep * trb(ji,jj,jk,jppoc) |
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| 122 | zaggpoc4 = zaggtmp * trb(ji,jj,jk,jppoc) |
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| 123 | |
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| 124 | zaggpoc = zaggpoc1 + zaggpoc2 + zaggpoc3 + zaggpoc4 |
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| 125 | zaggpon = zaggpoc * trb(ji,jj,jk,jppon) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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| 126 | zaggpop = zaggpoc * trb(ji,jj,jk,jppop) / ( trb(ji,jj,jk,jppoc) + rtrn) |
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| 127 | zaggfe = zaggpoc * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
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| 128 | |
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| 129 | ! Aggregation of DOC to POC : |
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| 130 | ! 1st term is shear aggregation of DOC-DOC |
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| 131 | ! 2nd term is shear aggregation of DOC-POC |
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| 132 | ! 3rd term is differential settling of DOC-POC |
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| 133 | zaggtmp = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
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| 134 | & + 2.4 * xstep * trb(ji,jj,jk,jppoc) ) |
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| 135 | zaggdoc = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 136 | zaggdon = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 137 | zaggdop = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 138 | |
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| 139 | ! transfer of DOC to GOC : |
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| 140 | ! 1st term is shear aggregation |
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| 141 | ! 2nd term is differential settling |
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| 142 | zaggtmp = ( 3.53E3 * zfact + 0.1 * xstep ) * trb(ji,jj,jk,jpgoc) |
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| 143 | zaggdoc2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 144 | zaggdon2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 145 | zaggdop2 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 146 | |
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| 147 | ! tranfer of DOC to POC due to brownian motion |
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| 148 | zaggtmp = ( 114. * 0.3 * trb(ji,jj,jk,jpdoc) ) * xstep |
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| 149 | zaggdoc3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdoc) |
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| 150 | zaggdon3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdon) |
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| 151 | zaggdop3 = zaggtmp * 0.3 * trb(ji,jj,jk,jpdop) |
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| 152 | |
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| 153 | ! Update the trends |
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| 154 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zaggpoc + zaggdoc + zaggdoc3 |
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| 155 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) - zaggpon + zaggdon + zaggdon3 |
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| 156 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) - zaggpop + zaggdop + zaggdop3 |
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| 157 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zaggpoc + zaggdoc2 |
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| 158 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zaggpon + zaggdon2 |
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| 159 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + zaggpop + zaggdop2 |
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| 160 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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| 161 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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| 162 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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| 163 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) - zaggdon - zaggdon2 - zaggdon3 |
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| 164 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) - zaggdop - zaggdop2 - zaggdop3 |
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| 165 | ! |
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| 166 | conspoc(ji,jj,jk) = conspoc(ji,jj,jk) - zaggpoc + zaggdoc + zaggdoc3 |
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| 167 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zaggpoc + zaggdoc2 |
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| 168 | ! |
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| 169 | END DO |
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| 170 | END DO |
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| 171 | END DO |
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| 172 | ! |
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| 173 | ENDIF |
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[7162] | 174 | ! |
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[11872] | 175 | IF(sn_cfctl%l_prttrc) THEN ! print mean trends (used for debugging) |
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[7162] | 176 | WRITE(charout, FMT="('agg')") |
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| 177 | CALL prt_ctl_trc_info(charout) |
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| 178 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 179 | ENDIF |
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| 180 | ! |
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[9124] | 181 | IF( ln_timing ) CALL timing_stop('p4z_agg') |
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[7162] | 182 | ! |
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| 183 | END SUBROUTINE p4z_agg |
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| 184 | |
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| 185 | !!====================================================================== |
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| 186 | END MODULE p4zagg |
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