1 | MODULE traldf |
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2 | !!====================================================================== |
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3 | !! *** MODULE traldf *** |
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4 | !! Ocean Active tracers : lateral diffusive trends |
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5 | !!===================================================================== |
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6 | !! History : 9.0 ! 2005-11 (G. Madec) Original code |
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7 | !! NEMO 3.0 ! 2008-01 (C. Ethe, G. Madec) merge TRC-TRA |
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8 | !! 3.7 ! 2013-12 (G. Madec) remove the optional computation from T & S anomaly profiles and traldf_bilapg |
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9 | !! - ! 2013-12 (F. Lemarie, G. Madec) triad operator (Griffies) + Method of Stabilizing Correction |
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10 | !! - ! 2014-01 (G. Madec, S. Masson) restructuration/simplification of lateral diffusive operators |
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11 | !!---------------------------------------------------------------------- |
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12 | |
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13 | !!---------------------------------------------------------------------- |
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14 | !! tra_ldf : update the tracer trend with the lateral diffusion trend |
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15 | !! tra_ldf_init : initialization, namelist read, and parameters control |
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16 | !!---------------------------------------------------------------------- |
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17 | USE oce ! ocean dynamics and tracers |
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18 | USE dom_oce ! ocean space and time domain |
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19 | ! TEMP: [tiling] This change not necessary after extra haloes development (lbc_lnk removed from tra_ldf_blp, zps_hde*) |
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20 | USE domain, ONLY : dom_tile |
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21 | USE phycst ! physical constants |
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22 | USE ldftra ! lateral diffusion: eddy diffusivity & EIV coeff. |
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23 | USE ldfslp ! lateral diffusion: iso-neutral slope |
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24 | USE traldf_lap_blp ! lateral diffusion: laplacian iso-level operator (tra_ldf_lap/_blp routines) |
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25 | USE traldf_iso ! lateral diffusion: laplacian iso-neutral standard operator (tra_ldf_iso routine ) |
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26 | USE traldf_triad ! lateral diffusion: laplacian iso-neutral triad operator (tra_ldf_triad routine ) |
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27 | USE trd_oce ! trends: ocean variables |
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28 | USE trdtra ! ocean active tracers trends |
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29 | ! |
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30 | USE prtctl ! Print control |
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31 | USE in_out_manager ! I/O manager |
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32 | USE lib_mpp ! distribued memory computing library |
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33 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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34 | USE timing ! Timing |
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35 | |
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36 | IMPLICIT NONE |
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37 | PRIVATE |
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38 | |
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39 | PUBLIC tra_ldf ! called by step.F90 |
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40 | PUBLIC tra_ldf_init ! called by nemogcm.F90 |
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41 | |
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42 | !!---------------------------------------------------------------------- |
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43 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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44 | !! $Id$ |
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45 | !! Software governed by the CeCILL license (see ./LICENSE) |
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46 | !!---------------------------------------------------------------------- |
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47 | CONTAINS |
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48 | |
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49 | SUBROUTINE tra_ldf( kt, Kbb, Kmm, pts, Krhs ) |
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50 | !!---------------------------------------------------------------------- |
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51 | !! *** ROUTINE tra_ldf *** |
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52 | !! |
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53 | !! ** Purpose : compute the lateral ocean tracer physics. |
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54 | !!---------------------------------------------------------------------- |
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55 | INTEGER, INTENT(in ) :: kt ! ocean time-step index |
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56 | INTEGER, INTENT(in ) :: Kbb, Kmm, Krhs ! ocean time level indices |
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57 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
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58 | !! |
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59 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, ztrds |
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60 | ! TEMP: [tiling] This change not necessary after extra haloes development (lbc_lnk removed from tra_ldf_blp, zps_hde*) |
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61 | LOGICAL :: lskip |
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62 | !!---------------------------------------------------------------------- |
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63 | ! |
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64 | IF( ln_timing ) CALL timing_start('tra_ldf') |
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65 | ! |
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66 | lskip = .FALSE. |
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67 | |
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68 | IF( l_trdtra ) THEN !* Save ta and sa trends |
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69 | ALLOCATE( ztrdt(jpi,jpj,jpk) , ztrds(jpi,jpj,jpk) ) |
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70 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) |
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71 | ztrds(:,:,:) = pts(:,:,:,jp_sal,Krhs) |
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72 | ENDIF |
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73 | |
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74 | ! TEMP: [tiling] These changes not necessary after extra haloes development (lbc_lnk removed from tra_ldf_blp, zps_hde*) |
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75 | IF( nldf_tra == np_blp .OR. nldf_tra == np_blp_i .OR. nldf_tra == np_blp_it ) THEN |
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76 | IF( ln_tile ) THEN |
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77 | IF( ntile == 1 ) THEN |
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78 | CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 0 ) |
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79 | ELSE |
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80 | lskip = .TRUE. |
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81 | ENDIF |
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82 | ENDIF |
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83 | ENDIF |
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84 | IF( .NOT. lskip ) THEN |
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85 | ! |
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86 | SELECT CASE ( nldf_tra ) !* compute lateral mixing trend and add it to the general trend |
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87 | CASE ( np_lap ) ! laplacian: iso-level operator |
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88 | CALL tra_ldf_lap ( kt, Kmm, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, pts(:,:,:,:,Kbb), pts(:,:,:,:,Krhs), jpts, 1 ) |
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89 | CASE ( np_lap_i ) ! laplacian: standard iso-neutral operator (Madec) |
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90 | CALL tra_ldf_iso ( kt, Kmm, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, pts(:,:,:,:,Kbb), pts(:,:,:,:,Kbb), pts(:,:,:,:,Krhs), jpts, 1 ) |
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91 | CASE ( np_lap_it ) ! laplacian: triad iso-neutral operator (griffies) |
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92 | CALL tra_ldf_triad( kt, Kmm, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, pts(:,:,:,:,Kbb), pts(:,:,:,:,Kbb), pts(:,:,:,:,Krhs), jpts, 1 ) |
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93 | CASE ( np_blp , np_blp_i , np_blp_it ) ! bilaplacian: iso-level & iso-neutral operators |
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94 | ! NOTE: [tiling-comms-merge] This lbc_lnk is still needed in the zco case, because zps_hde is not called in step |
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95 | IF(nn_hls.EQ.2) CALL lbc_lnk( 'tra_ldf', pts(:,:,:,:,Kbb), 'T',1.) |
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96 | CALL tra_ldf_blp ( kt, Kmm, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, pts(:,:,:,:,Kbb), pts(:,:,:,:,Krhs), jpts, nldf_tra ) |
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97 | END SELECT |
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98 | ! |
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99 | IF( l_trdtra ) THEN !* save the horizontal diffusive trends for further diagnostics |
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100 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) - ztrdt(:,:,:) |
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101 | ztrds(:,:,:) = pts(:,:,:,jp_sal,Krhs) - ztrds(:,:,:) |
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102 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_tem, jptra_ldf, ztrdt ) |
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103 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_sal, jptra_ldf, ztrds ) |
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104 | DEALLOCATE( ztrdt, ztrds ) |
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105 | ENDIF |
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106 | |
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107 | ! TEMP: [tiling] This change not necessary after extra haloes development (lbc_lnk removed from tra_ldf_blp, zps_hde*) |
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108 | IF( ln_tile .AND. ntile == 0 ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 1 ) |
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109 | ENDIF |
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110 | ! !* print mean trends (used for debugging) |
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111 | IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=pts(:,:,:,jp_tem,Krhs), clinfo1=' ldf - Ta: ', mask1=tmask, & |
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112 | & tab3d_2=pts(:,:,:,jp_sal,Krhs), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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113 | ! |
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114 | IF( ln_timing ) CALL timing_stop('tra_ldf') |
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115 | ! |
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116 | END SUBROUTINE tra_ldf |
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117 | |
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118 | |
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119 | SUBROUTINE tra_ldf_init |
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120 | !!---------------------------------------------------------------------- |
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121 | !! *** ROUTINE tra_ldf_init *** |
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122 | !! |
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123 | !! ** Purpose : Choice of the operator for the lateral tracer diffusion |
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124 | !! |
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125 | !! ** Method : set nldf_tra from the namtra_ldf logicals |
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126 | !!---------------------------------------------------------------------- |
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127 | INTEGER :: ioptio, ierr ! temporary integers |
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128 | !!---------------------------------------------------------------------- |
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129 | ! |
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130 | IF(lwp) THEN !== Namelist print ==! |
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131 | WRITE(numout,*) |
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132 | WRITE(numout,*) 'tra_ldf_init : lateral tracer diffusive operator' |
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133 | WRITE(numout,*) '~~~~~~~~~~~~' |
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134 | WRITE(numout,*) ' Namelist namtra_ldf: already read in ldftra module' |
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135 | WRITE(numout,*) ' see ldf_tra_init report for lateral mixing parameters' |
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136 | WRITE(numout,*) |
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137 | ! |
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138 | SELECT CASE( nldf_tra ) ! print the choice of operator |
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139 | CASE( np_no_ldf ) ; WRITE(numout,*) ' ==>>> NO lateral diffusion' |
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140 | CASE( np_lap ) ; WRITE(numout,*) ' ==>>> laplacian iso-level operator' |
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141 | CASE( np_lap_i ) ; WRITE(numout,*) ' ==>>> Rotated laplacian operator (standard)' |
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142 | CASE( np_lap_it ) ; WRITE(numout,*) ' ==>>> Rotated laplacian operator (triad)' |
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143 | CASE( np_blp ) ; WRITE(numout,*) ' ==>>> bilaplacian iso-level operator' |
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144 | CASE( np_blp_i ) ; WRITE(numout,*) ' ==>>> Rotated bilaplacian operator (standard)' |
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145 | CASE( np_blp_it ) ; WRITE(numout,*) ' ==>>> Rotated bilaplacian operator (triad)' |
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146 | END SELECT |
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147 | ENDIF |
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148 | ! |
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149 | END SUBROUTINE tra_ldf_init |
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150 | |
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151 | !!====================================================================== |
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152 | END MODULE traldf |
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