[3443] | 1 | MODULE p2zsed |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p2zsed *** |
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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 | !! p2z_sed : Compute loss of organic matter in the sediments |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | USE oce_trc ! |
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[9169] | 13 | USE trd_oce ! |
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| 14 | USE trdtrc ! |
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| 15 | USE trc ! |
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| 16 | USE sms_pisces ! |
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| 17 | ! |
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| 18 | USE lbclnk ! |
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| 19 | USE iom ! |
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[3443] | 20 | USE prtctl_trc ! Print control for debbuging |
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| 21 | |
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| 22 | IMPLICIT NONE |
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| 23 | PRIVATE |
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| 24 | |
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| 25 | PUBLIC p2z_sed ! called in ??? |
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| 26 | PUBLIC p2z_sed_init ! called in ??? |
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| 27 | |
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[4147] | 28 | REAL(wp), PUBLIC :: sedlam !: time coefficient of POC remineralization in sediments |
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[9169] | 29 | REAL(wp), PUBLIC :: sedlostpoc !: mass of POC lost in sediments |
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| 30 | REAL(wp), PUBLIC :: vsed !: detritus sedimentation speed [m/s] |
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| 31 | REAL(wp), PUBLIC :: xhr !: coeff for martin''s remineralisation profile |
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[3443] | 32 | |
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| 33 | !!---------------------------------------------------------------------- |
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[10067] | 34 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[5215] | 35 | !! $Id$ |
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[10068] | 36 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3443] | 37 | !!---------------------------------------------------------------------- |
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| 38 | CONTAINS |
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| 39 | |
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| 40 | SUBROUTINE p2z_sed( kt ) |
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| 41 | !!--------------------------------------------------------------------- |
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| 42 | !! *** ROUTINE p2z_sed *** |
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| 43 | !! |
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| 44 | !! ** Purpose : compute the now trend due to the vertical sedimentation of |
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| 45 | !! detritus and add it to the general trend of detritus equations |
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| 46 | !! |
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| 47 | !! ** Method : this ROUTINE compute not exactly the advection but the |
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| 48 | !! transport term, i.e. dz(wt) and dz(ws)., dz(wtr) |
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| 49 | !! using an upstream scheme |
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| 50 | !! the now vertical advection of tracers is given by: |
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| 51 | !! dz(trn wn) = 1/bt dk+1( e1t e2t vsed (trn) ) |
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| 52 | !! add this trend now to the general trend of tracer (ta,sa,tra): |
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| 53 | !! tra = tra + dz(trn wn) |
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| 54 | !! |
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| 55 | !! IF 'key_diabio' is defined, the now vertical advection |
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| 56 | !! trend of passive tracers is saved for futher diagnostics. |
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| 57 | !!--------------------------------------------------------------------- |
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| 58 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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[9124] | 59 | ! |
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[3443] | 60 | INTEGER :: ji, jj, jk, jl, ierr |
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| 61 | CHARACTER (len=25) :: charout |
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[9125] | 62 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zw2d |
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| 63 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zwork, ztra |
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[3443] | 64 | !!--------------------------------------------------------------------- |
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| 65 | ! |
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[9124] | 66 | IF( ln_timing ) CALL timing_start('p2z_sed') |
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[3443] | 67 | ! |
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| 68 | IF( kt == nittrc000 ) THEN |
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| 69 | IF(lwp) WRITE(numout,*) |
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| 70 | IF(lwp) WRITE(numout,*) ' p2z_sed: LOBSTER sedimentation' |
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| 71 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
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| 72 | ENDIF |
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| 73 | |
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| 74 | ! sedimentation of detritus : upstream scheme |
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| 75 | ! -------------------------------------------- |
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| 76 | |
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| 77 | ! for detritus sedimentation only - jpdet |
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| 78 | zwork(:,:,1 ) = 0.e0 ! surface value set to zero |
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| 79 | zwork(:,:,jpk) = 0.e0 ! bottom value set to zero |
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| 80 | |
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| 81 | ! tracer flux at w-point: we use -vsed (downward flux) with simplification : no e1*e2 |
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| 82 | DO jk = 2, jpkm1 |
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| 83 | zwork(:,:,jk) = -vsed * trn(:,:,jk-1,jpdet) |
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| 84 | END DO |
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| 85 | |
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| 86 | ! tracer flux divergence at t-point added to the general trend |
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| 87 | DO jk = 1, jpkm1 |
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| 88 | DO jj = 1, jpj |
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| 89 | DO ji = 1, jpi |
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[6140] | 90 | ztra(ji,jj,jk) = - ( zwork(ji,jj,jk) - zwork(ji,jj,jk+1) ) / e3t_n(ji,jj,jk) |
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[3443] | 91 | tra(ji,jj,jk,jpdet) = tra(ji,jj,jk,jpdet) + ztra(ji,jj,jk) |
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| 92 | END DO |
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| 93 | END DO |
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| 94 | END DO |
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| 95 | |
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[4996] | 96 | IF( lk_iomput ) THEN |
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| 97 | IF( iom_use( "TDETSED" ) ) THEN |
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[9125] | 98 | ALLOCATE( zw2d(jpi,jpj) ) |
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[6140] | 99 | zw2d(:,:) = ztra(:,:,1) * e3t_n(:,:,1) * 86400._wp |
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[4996] | 100 | DO jk = 2, jpkm1 |
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[6140] | 101 | zw2d(:,:) = zw2d(:,:) + ztra(:,:,jk) * e3t_n(:,:,jk) * 86400._wp |
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[4996] | 102 | END DO |
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| 103 | CALL iom_put( "TDETSED", zw2d ) |
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[9125] | 104 | DEALLOCATE( zw2d ) |
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[3443] | 105 | ENDIF |
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| 106 | ENDIF |
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| 107 | ! |
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| 108 | |
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| 109 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 110 | WRITE(charout, FMT="('sed')") |
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| 111 | CALL prt_ctl_trc_info(charout) |
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| 112 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 113 | ENDIF |
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| 114 | ! |
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[9124] | 115 | IF( ln_timing ) CALL timing_stop('p2z_sed') |
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[3443] | 116 | ! |
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| 117 | END SUBROUTINE p2z_sed |
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| 118 | |
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[9124] | 119 | |
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[3443] | 120 | SUBROUTINE p2z_sed_init |
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| 121 | !!---------------------------------------------------------------------- |
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| 122 | !! *** ROUTINE p2z_sed_init *** |
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| 123 | !! |
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| 124 | !! ** Purpose : Parameters from aphotic layers to sediment |
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| 125 | !! |
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| 126 | !! ** Method : Read the namlobsed namelist and check the parameters |
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| 127 | !! |
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| 128 | !!---------------------------------------------------------------------- |
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[9169] | 129 | INTEGER :: ios ! Local integer |
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| 130 | !! |
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[3443] | 131 | NAMELIST/namlobsed/ sedlam, sedlostpoc, vsed, xhr |
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[9169] | 132 | !!---------------------------------------------------------------------- |
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| 133 | ! |
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[4147] | 134 | REWIND( numnatp_ref ) ! Namelist namlobsed in reference namelist : Lobster sediments |
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| 135 | READ ( numnatp_ref, namlobsed, IOSTAT = ios, ERR = 901) |
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[11831] | 136 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namlosed in reference namelist' ) |
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[4147] | 137 | REWIND( numnatp_cfg ) ! Namelist namlobsed in configuration namelist : Lobster sediments |
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| 138 | READ ( numnatp_cfg, namlobsed, IOSTAT = ios, ERR = 902 ) |
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[11831] | 139 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namlobsed in configuration namelist' ) |
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[4624] | 140 | IF(lwm) WRITE ( numonp, namlobsed ) |
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[9169] | 141 | ! |
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[3443] | 142 | IF(lwp) THEN |
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[9169] | 143 | WRITE(numout,*) ' Namelist namlobsed' |
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| 144 | WRITE(numout,*) ' time coeff of POC in sediments sedlam =', sedlam |
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| 145 | WRITE(numout,*) ' Sediment geol loss for POC sedlostpoc=', sedlostpoc |
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| 146 | WRITE(numout,*) ' detritus sedimentation speed vsed =', 86400 * vsed , ' d' |
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| 147 | WRITE(numout,*) ' coeff for martin''s remineralistion xhr =', xhr |
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[3443] | 148 | WRITE(numout,*) ' ' |
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| 149 | ENDIF |
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| 150 | ! |
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| 151 | END SUBROUTINE p2z_sed_init |
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| 152 | |
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| 153 | !!====================================================================== |
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[9788] | 154 | END MODULE p2zsed |
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