[934] | 1 | MODULE trcexp |
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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 : - ! 1999 (O. Aumont, C. Le Quere) original code |
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| 7 | !! - ! 2001-05 (O. Aumont, E. Kestenare) add sediment computations |
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| 8 | !! 1.0 ! 2005-06 (A.-S. Kremeur) new temporal integration for sedpoc |
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| 9 | !! 2.0 ! 2007-12 (C. Deltel, G. Madec) F90 |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | #if defined key_lobster |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! 'key_lobster' LOBSTER bio-model |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | !! trc_exp : Compute loss of organic matter in the sediments |
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| 16 | !!---------------------------------------------------------------------- |
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| 17 | USE oce_trc ! |
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[1071] | 18 | USE sms_lobster |
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[934] | 19 | USE lbclnk |
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| 20 | USE trc |
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[2528] | 21 | USE trcnam_trp |
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[934] | 22 | USE prtctl_trc ! Print control for debbuging |
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[2528] | 23 | USE trdmod_oce |
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| 24 | USE trdmod_trc |
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[1457] | 25 | USE iom |
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[934] | 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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| 30 | PUBLIC trc_exp ! called in p4zprg.F90 |
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| 31 | |
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| 32 | !!* Substitution |
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[1457] | 33 | # include "top_substitute.h90" |
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[934] | 34 | !!---------------------------------------------------------------------- |
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[2528] | 35 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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[1146] | 36 | !! $Id$ |
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[2528] | 37 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[934] | 38 | !!---------------------------------------------------------------------- |
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| 39 | |
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| 40 | CONTAINS |
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| 41 | |
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| 42 | SUBROUTINE trc_exp( kt ) |
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| 43 | !!--------------------------------------------------------------------- |
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| 44 | !! *** ROUTINE trc_exp *** |
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| 45 | !! |
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| 46 | !! ** Purpose : MODELS EXPORT OF BIOGENIC MATTER (POC ''SOFT |
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| 47 | !! TISSUE'') AND ITS DISTRIBUTION IN WATER COLUMN |
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| 48 | !! |
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| 49 | !! ** Method : - IN THE SURFACE LAYER POC IS PRODUCED ACCORDING TO |
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| 50 | !! NURTRIENTS AVAILABLE AND GROWTH CONDITIONS. NUTRIENT UPTAKE |
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| 51 | !! KINETICS FOLLOW MICHAELIS-MENTON FORMULATION. |
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| 52 | !! THE TOTAL PARTICLE AMOUNT PRODUCED, IS DISTRIBUTED IN THE WATER |
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| 53 | !! COLUMN BELOW THE SURFACE LAYER. |
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| 54 | !!--------------------------------------------------------------------- |
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[3294] | 55 | !! |
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[934] | 56 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 57 | !! |
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[3294] | 58 | INTEGER :: ji, jj, jk, jl, ikt, ierr |
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[2528] | 59 | REAL(wp) :: zgeolpoc, zfact, zwork, ze3t, zsedpocd |
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[3294] | 60 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrbio |
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[934] | 61 | CHARACTER (len=25) :: charout |
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| 62 | !!--------------------------------------------------------------------- |
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[3294] | 63 | ! |
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| 64 | IF( nn_timing == 1 ) CALL timing_start('trc_exp') |
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| 65 | ! |
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| 66 | IF( kt == nittrc000 ) THEN |
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[934] | 67 | IF(lwp) WRITE(numout,*) |
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| 68 | IF(lwp) WRITE(numout,*) ' trc_exp: LOBSTER export' |
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| 69 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
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| 70 | ENDIF |
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| 71 | |
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[3294] | 72 | IF( l_trdtrc ) THEN |
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| 73 | ALLOCATE( ztrbio(jpi,jpj,jpk) , STAT = ierr ) ! temporary save of trends |
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| 74 | IF( ierr > 0 ) THEN |
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| 75 | CALL ctl_stop( 'trc_exp: unable to allocate ztrbio array' ) ; RETURN |
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| 76 | ENDIF |
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| 77 | ztrbio(:,:,:) = tra(:,:,:,jp_lob_no3) |
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| 78 | ENDIF |
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| 79 | |
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[1176] | 80 | ! VERTICAL DISTRIBUTION OF NEWLY PRODUCED BIOGENIC |
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| 81 | ! POC IN THE WATER COLUMN |
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| 82 | ! (PARTS OF NEWLY FORMED MATTER REMAINING IN THE DIFFERENT |
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| 83 | ! LAYERS IS DETERMINED BY DMIN3 DEFINED IN sms_lobster.F90 |
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| 84 | ! ---------------------------------------------------------------------- |
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[934] | 85 | DO jk = 1, jpkm1 |
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| 86 | DO jj = 2, jpjm1 |
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[1457] | 87 | DO ji = fs_2, fs_jpim1 |
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| 88 | ze3t = 1. / fse3t(ji,jj,jk) |
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[2528] | 89 | tra(ji,jj,jk,jp_lob_no3) = tra(ji,jj,jk,jp_lob_no3) + ze3t * dmin3(ji,jj,jk) * fbod(ji,jj) |
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[934] | 90 | END DO |
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| 91 | END DO |
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| 92 | END DO |
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| 93 | |
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[1457] | 94 | ! Find the last level of the water column |
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| 95 | ! Compute fluxes due to sinking particles (slow) |
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[934] | 96 | |
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| 97 | |
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| 98 | zgeolpoc = 0.e0 ! Initialization |
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| 99 | ! Release of nutrients from the "simple" sediment |
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| 100 | DO jj = 2, jpjm1 |
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[1457] | 101 | DO ji = fs_2, fs_jpim1 |
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[2528] | 102 | ikt = mbkt(ji,jj) |
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| 103 | tra(ji,jj,ikt,jp_lob_no3) = tra(ji,jj,ikt,jp_lob_no3) + sedlam * sedpocn(ji,jj) / fse3t(ji,jj,ikt) |
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[1457] | 104 | ! Deposition of organic matter in the sediment |
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[2528] | 105 | zwork = vsed * trn(ji,jj,ikt,jp_lob_det) |
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[1457] | 106 | sedpoca(ji,jj) = ( zwork + dminl(ji,jj) * fbod(ji,jj) & |
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| 107 | & - sedlam * sedpocn(ji,jj) - sedlostpoc * sedpocn(ji,jj) ) * rdt |
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[2715] | 108 | zgeolpoc = zgeolpoc + sedlostpoc * sedpocn(ji,jj) * e1e2t(ji,jj) |
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[934] | 109 | END DO |
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| 110 | END DO |
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| 111 | |
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[1457] | 112 | DO jj = 2, jpjm1 |
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| 113 | DO ji = fs_2, fs_jpim1 |
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[2528] | 114 | tra(ji,jj,1,jp_lob_no3) = tra(ji,jj,1,jp_lob_no3) + zgeolpoc * cmask(ji,jj) / areacot / fse3t(ji,jj,1) |
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[934] | 115 | END DO |
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| 116 | END DO |
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| 117 | |
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| 118 | CALL lbc_lnk( sedpocn, 'T', 1. ) |
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| 119 | |
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| 120 | ! Oa & Ek: diagnostics depending on jpdia2d ! left as example |
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[3294] | 121 | IF( ln_diatrc ) THEN |
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| 122 | IF( lk_iomput ) THEN ; CALL iom_put( "SEDPOC" , sedpocn ) |
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| 123 | ELSE ; trc2d(:,:,jp_lob0_2d + 18) = sedpocn(:,:) |
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| 124 | ENDIF |
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| 125 | ENDIF |
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[934] | 126 | |
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| 127 | |
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| 128 | ! Time filter and swap of arrays |
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| 129 | ! ------------------------------ |
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[3294] | 130 | IF( neuler == 0 .AND. kt == nittrc000 ) THEN ! Euler time-stepping at first time-step |
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[2528] | 131 | ! ! (only swap) |
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| 132 | sedpocn(:,:) = sedpoca(:,:) |
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| 133 | ! |
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| 134 | ELSE |
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| 135 | ! |
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| 136 | DO jj = 1, jpj |
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| 137 | DO ji = 1, jpi |
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| 138 | zsedpocd = sedpoca(ji,jj) - 2. * sedpocn(ji,jj) + sedpocb(ji,jj) ! time laplacian on tracers |
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| 139 | sedpocb(ji,jj) = sedpocn(ji,jj) + atfp * zsedpocd ! sedpocb <-- filtered sedpocn |
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| 140 | sedpocn(ji,jj) = sedpoca(ji,jj) ! sedpocn <-- sedpoca |
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| 141 | END DO |
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| 142 | END DO |
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| 143 | ! |
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[934] | 144 | ENDIF |
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[2528] | 145 | sedpoca(:,:) = 0.e0 |
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[934] | 146 | ! |
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[1176] | 147 | IF( l_trdtrc ) THEN |
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[2528] | 148 | ztrbio(:,:,:) = tra(:,:,:,jp_lob_no3) - ztrbio(:,:,:) |
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[1255] | 149 | jl = jp_lob0_trd + 16 |
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[1176] | 150 | CALL trd_mod_trc( ztrbio, jl, kt ) ! handle the trend |
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[3294] | 151 | DEALLOCATE( ztrbio ) |
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[1176] | 152 | ENDIF |
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[934] | 153 | |
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| 154 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 155 | WRITE(charout, FMT="('exp')") |
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| 156 | CALL prt_ctl_trc_info(charout) |
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| 157 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 158 | ENDIF |
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[3294] | 159 | ! |
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| 160 | IF( nn_timing == 1 ) CALL timing_stop('trc_exp') |
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| 161 | ! |
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[934] | 162 | END SUBROUTINE trc_exp |
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| 163 | |
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| 164 | #else |
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| 165 | !!====================================================================== |
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| 166 | !! Dummy module : No PISCES bio-model |
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| 167 | !!====================================================================== |
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| 168 | CONTAINS |
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| 169 | SUBROUTINE trc_exp( kt ) ! Empty routine |
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| 170 | INTEGER, INTENT( in ) :: kt |
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| 171 | WRITE(*,*) 'trc_exp: You should not have seen this print! error?', kt |
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| 172 | END SUBROUTINE trc_exp |
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| 173 | #endif |
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| 174 | |
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| 175 | !!====================================================================== |
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| 176 | END MODULE trcexp |
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