| 1 | MODULE trcsed |
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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 : - ! 1995-06 (M. Levy) original code |
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| 7 | !! - ! 2000-12 (E. Kestenare) clean up |
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| 8 | !! 2.0 ! 2007-12 (C. Deltel, G. Madec) F90 + simplifications |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | #if defined key_lobster |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! 'key_lobster' LOBSTER bio-model |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! trc_sed : Compute loss of organic matter in the sediments |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE oce_trc ! |
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| 17 | USE trp_trc |
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| 18 | USE sms |
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| 19 | USE lbclnk |
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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 trc_sed ! called in ??? |
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| 25 | |
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| 26 | !!* Substitution |
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| 27 | # include "domzgr_substitute.h90" |
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| 28 | !!---------------------------------------------------------------------- |
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| 29 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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| 30 | !! $Id$ |
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| 31 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 32 | !!---------------------------------------------------------------------- |
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| 33 | |
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| 34 | CONTAINS |
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| 35 | |
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| 36 | SUBROUTINE trc_sed( kt ) |
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| 37 | !!--------------------------------------------------------------------- |
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| 38 | !! *** ROUTINE trc_sed *** |
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| 39 | !! |
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| 40 | !! ** Purpose : compute the now trend due to the vertical sedimentation of |
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| 41 | !! detritus and add it to the general trend of detritus equations |
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| 42 | !! |
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| 43 | !! ** Method : this ROUTINE compute not exactly the advection but the |
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| 44 | !! transport term, i.e. dz(wt) and dz(ws)., dz(wtr) |
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| 45 | !! using an upstream scheme |
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| 46 | !! the now vertical advection of tracers is given by: |
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| 47 | !! dz(trn wn) = 1/bt dk+1( e1t e2t vsed (trn) ) |
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| 48 | !! add this trend now to the general trend of tracer (ta,sa,tra): |
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| 49 | !! tra = tra + dz(trn wn) |
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| 50 | !! |
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| 51 | !! IF 'key_trc_diabio' is defined, the now vertical advection |
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| 52 | !! trend of passive tracers is saved for futher diagnostics. |
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| 53 | !!--------------------------------------------------------------------- |
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| 54 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 55 | !! |
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| 56 | INTEGER :: ji, jj, jk |
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| 57 | REAL(wp) :: ztra |
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| 58 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zwork |
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| 59 | !!--------------------------------------------------------------------- |
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| 60 | |
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| 61 | IF( kt == nit000 ) THEN |
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| 62 | IF(lwp) WRITE(numout,*) |
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| 63 | IF(lwp) WRITE(numout,*) ' trc_sed: LOBSTER sedimentation' |
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| 64 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
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| 65 | ENDIF |
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| 66 | |
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| 67 | ! sedimentation of detritus : upstream scheme |
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| 68 | ! -------------------------------------------- |
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| 69 | |
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| 70 | ! for detritus sedimentation only - jpdet |
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| 71 | |
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| 72 | zwork(:,:,1 ) = 0.e0 ! surface value set to zero |
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| 73 | zwork(:,:,jpk) = 0.e0 ! bottom value set to zero |
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| 74 | |
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| 75 | ! tracer flux at w-point: we use -vsed (downward flux) with simplification : no e1*e2 |
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| 76 | |
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| 77 | DO jk = 2, jpkm1 |
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| 78 | zwork(:,:,jk) = -vsed * trn(:,:,jk-1,jpdet) |
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| 79 | END DO |
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| 80 | |
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| 81 | ! tracer flux divergence at t-point added to the general trend |
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| 82 | |
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| 83 | DO jk = 1, jpkm1 |
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| 84 | DO jj = 1, jpj |
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| 85 | DO ji = 1,jpi |
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| 86 | ztra = - ( zwork(ji,jj,jk) - zwork(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
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| 87 | tra(ji,jj,jk,jpdet) = tra(ji,jj,jk,jpdet) + ztra |
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| 88 | # if defined key_trc_diabio |
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| 89 | trbio(ji,jj,jk,8) = ztra |
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| 90 | # endif |
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| 91 | # if defined key_trc_diaadd |
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| 92 | !!gm bug introduced: no more mask below jpkb ! |
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| 93 | trc2d(ji,jj,8) = trc2d(ji,jj,8) + ztra * fse3t(ji,jj,jk) * 86400. |
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| 94 | # endif |
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| 95 | END DO |
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| 96 | END DO |
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| 97 | END DO |
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| 98 | |
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| 99 | #if defined key_trc_diabio |
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| 100 | CALL lbc_lnk( trbio(:,:,1,8), 'T', 1. ) ! Lateral boundary conditions on trcbio |
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| 101 | #endif |
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| 102 | #if defined key_trc_diaadd |
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| 103 | CALL lbc_lnk( trc2d(:,:,8), 'T', 1. ) ! Lateral boundary conditions on trc2d |
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| 104 | #endif |
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| 105 | ! |
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| 106 | END SUBROUTINE trc_sed |
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| 107 | |
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| 108 | #else |
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| 109 | !!====================================================================== |
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| 110 | !! Dummy module : No PISCES bio-model |
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| 111 | !!====================================================================== |
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| 112 | CONTAINS |
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| 113 | SUBROUTINE trc_sed( kt ) ! Empty routine |
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| 114 | INTEGER, INTENT( in ) :: kt |
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| 115 | WRITE(*,*) 'trc_sed: You should not have seen this print! error?', kt |
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| 116 | END SUBROUTINE trc_sed |
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| 117 | #endif |
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| 118 | |
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| 119 | !!====================================================================== |
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| 120 | END MODULE trcsed |
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