1 | MODULE trcadv |
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2 | !!============================================================================== |
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3 | !! *** MODULE trcadv *** |
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4 | !! Ocean passive tracers: advection trend |
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5 | !!============================================================================== |
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6 | !! History : 2.0 ! 05-11 (G. Madec) Original code |
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7 | !! 3.0 ! 10-06 (C. Ethe) Adapted to passive tracers |
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8 | !!---------------------------------------------------------------------- |
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9 | #if defined key_top |
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10 | !!---------------------------------------------------------------------- |
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11 | !! 'key_top' TOP models |
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12 | !!---------------------------------------------------------------------- |
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13 | !! trc_adv : compute ocean tracer advection trend |
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14 | !! trc_adv_ini : control the different options of advection scheme |
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15 | !!---------------------------------------------------------------------- |
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16 | USE oce_trc ! ocean dynamics and active tracers |
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17 | USE trc ! ocean passive tracers variables |
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18 | USE traadv_cen2 ! 2nd order centered scheme (tra_adv_cen2 routine) |
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19 | USE traadv_tvd ! TVD scheme (tra_adv_tvd routine) |
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20 | USE traadv_muscl ! MUSCL scheme (tra_adv_muscl routine) |
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21 | USE traadv_muscl2 ! MUSCL2 scheme (tra_adv_muscl2 routine) |
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22 | USE traadv_ubs ! UBS scheme (tra_adv_ubs routine) |
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23 | USE traadv_qck ! QUICKEST scheme (tra_adv_qck routine) |
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24 | USE traadv_mle ! ML eddy induced velocity (tra_adv_mle routine) |
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25 | USE ldftra ! lateral diffusion coefficient on tracers |
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26 | USE prtctl_trc ! Print control |
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27 | |
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28 | IMPLICIT NONE |
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29 | PRIVATE |
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30 | |
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31 | PUBLIC trc_adv |
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32 | PUBLIC trc_adv_alloc |
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33 | PUBLIC trc_adv_ini |
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34 | |
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35 | ! !!: ** Advection (namtrc_adv) ** |
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36 | LOGICAL , PUBLIC :: ln_trcadv_cen2 ! 2nd order centered scheme flag |
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37 | LOGICAL , PUBLIC :: ln_trcadv_tvd ! TVD scheme flag |
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38 | LOGICAL , PUBLIC :: ln_trcadv_muscl ! MUSCL scheme flag |
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39 | LOGICAL , PUBLIC :: ln_trcadv_muscl2 ! MUSCL2 scheme flag |
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40 | LOGICAL , PUBLIC :: ln_trcadv_ubs ! UBS scheme flag |
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41 | LOGICAL , PUBLIC :: ln_trcadv_qck ! QUICKEST scheme flag |
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42 | LOGICAL , PUBLIC :: ln_trcadv_msc_ups ! use upstream scheme within muscl |
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43 | |
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44 | INTEGER :: nadv ! choice of the type of advection scheme |
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45 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:) :: r2dt ! vertical profile time-step, = 2 rdttra |
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46 | ! ! except at nitrrc000 (=rdttra) if neuler=0 |
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47 | |
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48 | !! * Substitutions |
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49 | # include "domzgr_substitute.h90" |
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50 | # include "vectopt_loop_substitute.h90" |
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51 | !!---------------------------------------------------------------------- |
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52 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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53 | !! $Id$ |
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54 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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55 | !!---------------------------------------------------------------------- |
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56 | CONTAINS |
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57 | |
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58 | INTEGER FUNCTION trc_adv_alloc() |
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59 | !!---------------------------------------------------------------------- |
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60 | !! *** ROUTINE trc_adv_alloc *** |
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61 | !!---------------------------------------------------------------------- |
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62 | |
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63 | ALLOCATE( r2dt(jpk), STAT=trc_adv_alloc ) |
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64 | |
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65 | IF( trc_adv_alloc /= 0 ) CALL ctl_warn('trc_adv_alloc : failed to allocate array.') |
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66 | |
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67 | END FUNCTION trc_adv_alloc |
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68 | |
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69 | |
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70 | SUBROUTINE trc_adv( kt ) |
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71 | !!---------------------------------------------------------------------- |
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72 | !! *** ROUTINE trc_adv *** |
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73 | !! |
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74 | !! ** Purpose : compute the ocean tracer advection trend. |
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75 | !! |
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76 | !! ** Method : - Update the tracer with the advection term following nadv |
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77 | !!---------------------------------------------------------------------- |
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78 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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79 | ! |
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80 | INTEGER :: jk |
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81 | CHARACTER (len=22) :: charout |
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82 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zun, zvn, zwn ! effective velocity |
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83 | !!---------------------------------------------------------------------- |
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84 | ! |
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85 | IF( nn_timing == 1 ) CALL timing_start('trc_adv') |
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86 | ! |
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87 | CALL wrk_alloc( jpi,jpj,jpk, zun, zvn, zwn ) |
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88 | ! |
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89 | IF( ( neuler == 0 .AND. kt == nittrc000 ) .OR. ln_top_euler ) THEN ! at nittrc000 |
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90 | r2dt(:) = rdttrc(:) ! = rdttrc (use or restarting with Euler time stepping) |
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91 | ELSEIF( kt <= nittrc000 + nn_dttrc ) THEN ! at nittrc000 or nittrc000+1 |
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92 | r2dt(:) = 2. * rdttrc(:) ! = 2 rdttrc (leapfrog) |
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93 | ENDIF |
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94 | ! !== effective transport ==! |
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95 | zun(:,:,jpk) = 0._wp ! no transport trough the bottom |
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96 | zvn(:,:,jpk) = 0._wp |
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97 | zwn(:,:,jpk) = 0._wp |
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98 | DO jk = 1, jpkm1 |
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99 | zun(:,:,jk) = e2u (:,:) * fse3u(:,:,jk) * un(:,:,jk) ! eulerian transport |
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100 | zvn(:,:,jk) = e1v (:,:) * fse3v(:,:,jk) * vn(:,:,jk) |
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101 | zwn(:,:,jk) = e1e2t(:,:) * wn(:,:,jk) |
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102 | END DO |
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103 | ! |
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104 | IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN ! add z-tilde and/or vvl corrections |
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105 | zun(:,:,:) = zun(:,:,:) + un_td(:,:,:) |
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106 | zvn(:,:,:) = zvn(:,:,:) + vn_td(:,:,:) |
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107 | ENDIF |
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108 | ! |
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109 | IF( ln_ldfeiv .AND. .NOT. ln_traldf_triad ) & |
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110 | & CALL ldf_eiv_trp( kt, nittrc000, zun, zvn, zwn, 'TRC' ) ! add the eiv transport |
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111 | ! |
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112 | IF( ln_mle ) CALL tra_adv_mle( kt, nittrc000, zun, zvn, zwn, 'TRC' ) ! add the mle transport |
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113 | ! |
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114 | ! |
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115 | SELECT CASE ( nadv ) !== compute advection trend and add it to general trend ==! |
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116 | ! |
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117 | CASE ( 1 ) ; CALL tra_adv_cen2 ( kt, nittrc000, 'TRC', zun, zvn, zwn, trb, trn, tra, jptra ) ! 2nd order centered |
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118 | CASE ( 2 ) ; CALL tra_adv_tvd ( kt, nittrc000, 'TRC', r2dt, zun, zvn, zwn, trb, trn, tra, jptra ) ! TVD |
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119 | CASE ( 3 ) ; CALL tra_adv_muscl ( kt, nittrc000, 'TRC', r2dt, zun, zvn, zwn, trb, tra, jptra, ln_trcadv_msc_ups ) ! MUSCL |
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120 | CASE ( 4 ) ; CALL tra_adv_muscl2( kt, nittrc000, 'TRC', r2dt, zun, zvn, zwn, trb, trn, tra, jptra ) ! MUSCL2 |
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121 | CASE ( 5 ) ; CALL tra_adv_ubs ( kt, nittrc000, 'TRC', r2dt, zun, zvn, zwn, trb, trn, tra, jptra ) ! UBS |
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122 | CASE ( 6 ) ; CALL tra_adv_qck ( kt, nittrc000, 'TRC', r2dt, zun, zvn, zwn, trb, trn, tra, jptra ) ! QUICKEST |
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123 | ! |
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124 | END SELECT |
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125 | ! |
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126 | IF( ln_ctl ) THEN !== print mean trends (used for debugging) |
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127 | WRITE(charout, FMT="('adv ')") ; CALL prt_ctl_trc_info(charout) |
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128 | CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) |
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129 | END IF |
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130 | ! |
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131 | CALL wrk_dealloc( jpi,jpj,jpk, zun, zvn, zwn ) |
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132 | ! |
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133 | IF( nn_timing == 1 ) CALL timing_stop('trc_adv') |
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134 | ! |
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135 | END SUBROUTINE trc_adv |
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136 | |
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137 | |
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138 | SUBROUTINE trc_adv_ini |
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139 | !!--------------------------------------------------------------------- |
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140 | !! *** ROUTINE trc_adv_ini *** |
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141 | !! |
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142 | !! ** Purpose : Control the consistency between namelist options for |
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143 | !! passive tracer advection schemes and set nadv |
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144 | !!---------------------------------------------------------------------- |
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145 | INTEGER :: ioptio |
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146 | INTEGER :: ios ! Local integer output status for namelist read |
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147 | !! |
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148 | NAMELIST/namtrc_adv/ ln_trcadv_cen2 , ln_trcadv_tvd , & |
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149 | & ln_trcadv_muscl, ln_trcadv_muscl2, & |
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150 | & ln_trcadv_ubs , ln_trcadv_qck, ln_trcadv_msc_ups |
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151 | !!---------------------------------------------------------------------- |
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152 | ! |
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153 | REWIND( numnat_ref ) ! namtrc_adv in reference namelist |
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154 | READ ( numnat_ref, namtrc_adv, IOSTAT = ios, ERR = 901) |
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155 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtrc_adv in reference namelist', lwp ) |
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156 | |
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157 | REWIND( numnat_cfg ) ! namtrc_adv in configuration namelist |
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158 | READ ( numnat_cfg, namtrc_adv, IOSTAT = ios, ERR = 902 ) |
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159 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtrc_adv in configuration namelist', lwp ) |
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160 | IF(lwm) WRITE ( numont, namtrc_adv ) |
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161 | |
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162 | IF(lwp) THEN ! Namelist print |
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163 | WRITE(numout,*) |
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164 | WRITE(numout,*) 'trc_adv_ini : choice/control of the tracer advection scheme' |
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165 | WRITE(numout,*) '~~~~~~~~~~~' |
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166 | WRITE(numout,*) ' Namelist namtrc_adv : chose a advection scheme for tracers' |
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167 | WRITE(numout,*) ' 2nd order advection scheme ln_trcadv_cen2 = ', ln_trcadv_cen2 |
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168 | WRITE(numout,*) ' TVD advection scheme ln_trcadv_tvd = ', ln_trcadv_tvd |
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169 | WRITE(numout,*) ' MUSCL advection scheme ln_trcadv_muscl = ', ln_trcadv_muscl |
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170 | WRITE(numout,*) ' MUSCL2 advection scheme ln_trcadv_muscl2 = ', ln_trcadv_muscl2 |
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171 | WRITE(numout,*) ' UBS advection scheme ln_trcadv_ubs = ', ln_trcadv_ubs |
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172 | WRITE(numout,*) ' QUICKEST advection scheme ln_trcadv_qck = ', ln_trcadv_qck |
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173 | ENDIF |
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174 | ! |
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175 | |
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176 | ioptio = 0 ! Parameter control |
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177 | IF( ln_trcadv_cen2 ) ioptio = ioptio + 1 |
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178 | IF( ln_trcadv_tvd ) ioptio = ioptio + 1 |
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179 | IF( ln_trcadv_muscl ) ioptio = ioptio + 1 |
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180 | IF( ln_trcadv_muscl2 ) ioptio = ioptio + 1 |
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181 | IF( ln_trcadv_ubs ) ioptio = ioptio + 1 |
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182 | IF( ln_trcadv_qck ) ioptio = ioptio + 1 |
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183 | ! |
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184 | IF( ioptio /= 1 ) CALL ctl_stop( 'Choose ONE advection scheme in namelist namtrc_adv' ) |
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185 | ! |
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186 | ! ! Set nadv |
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187 | IF( ln_trcadv_cen2 ) nadv = 1 |
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188 | IF( ln_trcadv_tvd ) nadv = 2 |
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189 | IF( ln_trcadv_muscl ) nadv = 3 |
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190 | IF( ln_trcadv_muscl2 ) nadv = 4 |
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191 | IF( ln_trcadv_ubs ) nadv = 5 |
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192 | IF( ln_trcadv_qck ) nadv = 6 |
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193 | ! |
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194 | IF(lwp) THEN ! Print the choice |
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195 | WRITE(numout,*) |
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196 | IF( nadv == 1 ) WRITE(numout,*) ' 2nd order scheme is used' |
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197 | IF( nadv == 2 ) WRITE(numout,*) ' TVD scheme is used' |
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198 | IF( nadv == 3 ) WRITE(numout,*) ' MUSCL scheme is used' |
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199 | IF( nadv == 4 ) WRITE(numout,*) ' MUSCL2 scheme is used' |
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200 | IF( nadv == 5 ) WRITE(numout,*) ' UBS scheme is used' |
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201 | IF( nadv == 6 ) WRITE(numout,*) ' QUICKEST scheme is used' |
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202 | ENDIF |
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203 | ! |
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204 | END SUBROUTINE trc_adv_ini |
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205 | |
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206 | #else |
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207 | !!---------------------------------------------------------------------- |
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208 | !! Default option Empty module |
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209 | !!---------------------------------------------------------------------- |
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210 | CONTAINS |
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211 | SUBROUTINE trc_adv( kt ) |
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212 | INTEGER, INTENT(in) :: kt |
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213 | WRITE(*,*) 'trc_adv: You should not have seen this print! error?', kt |
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214 | END SUBROUTINE trc_adv |
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215 | #endif |
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216 | |
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217 | !!====================================================================== |
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218 | END MODULE trcadv |
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