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 trc |
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18 | USE sms_lobster |
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19 | USE lbclnk |
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20 | |
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21 | USE prtctl_trc ! Print control for debbuging |
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22 | |
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23 | IMPLICIT NONE |
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24 | PRIVATE |
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25 | |
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26 | PUBLIC trc_sed ! called in ??? |
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27 | |
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28 | !!* Substitution |
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29 | # include "domzgr_substitute.h90" |
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30 | !!---------------------------------------------------------------------- |
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31 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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32 | !! $Id: trcsed.F90 777 2007-12-19 18:40:57Z gm $ |
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33 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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34 | !!---------------------------------------------------------------------- |
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35 | |
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36 | CONTAINS |
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37 | |
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38 | SUBROUTINE trc_sed( kt ) |
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39 | !!--------------------------------------------------------------------- |
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40 | !! *** ROUTINE trc_sed *** |
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41 | !! |
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42 | !! ** Purpose : compute the now trend due to the vertical sedimentation of |
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43 | !! detritus and add it to the general trend of detritus equations |
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44 | !! |
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45 | !! ** Method : this ROUTINE compute not exactly the advection but the |
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46 | !! transport term, i.e. dz(wt) and dz(ws)., dz(wtr) |
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47 | !! using an upstream scheme |
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48 | !! the now vertical advection of tracers is given by: |
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49 | !! dz(trn wn) = 1/bt dk+1( e1t e2t vsed (trn) ) |
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50 | !! add this trend now to the general trend of tracer (ta,sa,tra): |
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51 | !! tra = tra + dz(trn wn) |
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52 | !! |
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53 | !! IF 'key_trc_diabio' is defined, the now vertical advection |
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54 | !! trend of passive tracers is saved for futher diagnostics. |
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55 | !!--------------------------------------------------------------------- |
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56 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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57 | !! |
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58 | INTEGER :: ji, jj, jk |
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59 | REAL(wp) :: ztra |
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60 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zwork |
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61 | |
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62 | CHARACTER (len=25) :: charout |
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63 | !!--------------------------------------------------------------------- |
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64 | |
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65 | IF( kt == nit000 ) THEN |
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66 | IF(lwp) WRITE(numout,*) |
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67 | IF(lwp) WRITE(numout,*) ' trc_sed: LOBSTER sedimentation' |
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68 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
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69 | ENDIF |
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70 | |
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71 | ! sedimentation of detritus : upstream scheme |
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72 | ! -------------------------------------------- |
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73 | |
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74 | ! for detritus sedimentation only - jpdet |
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75 | |
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76 | zwork(:,:,1 ) = 0.e0 ! surface value set to zero |
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77 | zwork(:,:,jpk) = 0.e0 ! bottom value set to zero |
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78 | |
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79 | ! tracer flux at w-point: we use -vsed (downward flux) with simplification : no e1*e2 |
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80 | |
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81 | DO jk = 2, jpk |
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82 | zwork(:,:,jk) = -vsed * trn(:,:,jk-1,jpdet) |
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83 | END DO |
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84 | |
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85 | ! tracer flux divergence at t-point added to the general trend |
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86 | |
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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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90 | ztra = - ( zwork(ji,jj,jk) - zwork(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
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91 | tra(ji,jj,jk,jpdet) = tra(ji,jj,jk,jpdet) + ztra |
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92 | # if defined key_trc_diabio |
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93 | trbio(ji,jj,jk,8) = ztra |
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94 | # endif |
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95 | # if defined key_trc_diaadd |
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96 | trc2d(ji,jj,8) = trc2d(ji,jj,8) + ztra * fse3t(ji,jj,jk) * 86400. |
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97 | # endif |
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98 | END DO |
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99 | END DO |
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100 | END DO |
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101 | |
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102 | #if defined key_trc_diabio |
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103 | CALL lbc_lnk (trbio(:,:,1,8), 'T', 1. ) ! Lateral boundary conditions on trcbio |
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104 | #endif |
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105 | #if defined key_trc_diaadd |
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106 | CALL lbc_lnk( trc2d(:,:,8), 'T', 1. ) ! Lateral boundary conditions on trc2d |
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107 | #endif |
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108 | ! |
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109 | |
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110 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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111 | WRITE(charout, FMT="('sed')") |
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112 | CALL prt_ctl_trc_info(charout) |
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113 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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114 | ENDIF |
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115 | |
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116 | END SUBROUTINE trc_sed |
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117 | |
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118 | #else |
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119 | !!====================================================================== |
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120 | !! Dummy module : No PISCES bio-model |
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121 | !!====================================================================== |
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122 | CONTAINS |
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123 | SUBROUTINE trc_sed( kt ) ! Empty routine |
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124 | INTEGER, INTENT( in ) :: kt |
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125 | WRITE(*,*) 'trc_sed: You should not have seen this print! error?', kt |
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126 | END SUBROUTINE trc_sed |
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127 | #endif |
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128 | |
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129 | !!====================================================================== |
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130 | END MODULE trcsed |
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