1 | MODULE dynspg |
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2 | !!====================================================================== |
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3 | !! *** MODULE dynspg *** |
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4 | !! Ocean dynamics: surface pressure gradient control |
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5 | !!====================================================================== |
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6 | |
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7 | !!---------------------------------------------------------------------- |
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8 | !! dyn_spg : update the dynamics trend with the lateral diffusion |
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9 | !! dyn_spg_ctl : initialization, namelist read, and parameters control |
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10 | !!---------------------------------------------------------------------- |
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11 | !! * Modules used |
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12 | USE oce ! ocean dynamics and tracers variables |
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13 | USE dom_oce ! ocean space and time domain variables |
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14 | USE dynspg_exp ! surface pressure gradient (dyn_spg_exp routine) |
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15 | USE dynspg_ts ! surface pressure gradient (dyn_spg_ts routine) |
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16 | USE dynspg_flt ! surface pressure gradient (dyn_spg_flt routine) |
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17 | USE dynspg_rl ! surface pressure gradient (dyn_spg_rl routine) |
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18 | USE dynspg_flt_jki ! surface pressure gradient (dyn_spgflt_jki routine) |
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19 | USE trdmod ! ocean dynamics trends |
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20 | USE trdmod_oce ! ocean variables trends |
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21 | USE prtctl ! Print control (prt_ctl routine) |
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22 | USE in_out_manager ! I/O manager |
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23 | |
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24 | IMPLICIT NONE |
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25 | PRIVATE |
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26 | |
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27 | !! * Accessibility |
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28 | PUBLIC dyn_spg ! routine called by step module |
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29 | |
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30 | !! * Public variables |
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31 | #if defined key_dynspg_exp || defined key_esopa |
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32 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_exp = .TRUE. !: Explicit free surface flag |
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33 | #else |
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34 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_exp = .FALSE. !: Explicit free surface flag |
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35 | #endif |
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36 | #if defined key_dynspg_ts || defined key_esopa |
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37 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_ts = .TRUE. !: Free surface with time splitting flag |
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38 | #else |
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39 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_ts = .FALSE. !: Free surface with time splitting flag |
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40 | #endif |
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41 | #if defined key_dynspg_flt || defined key_esopa |
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42 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_flt = .TRUE. !: Filtered free surface cst volume flag |
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43 | #else |
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44 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_flt = .FALSE. !: Filtered free surface cst volume flag |
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45 | #endif |
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46 | #if defined key_dynspg_rl |
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47 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_rl = .TRUE. !: Rigid-lid flag |
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48 | #else |
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49 | LOGICAL, PUBLIC, PARAMETER :: lk_dynspg_rl = .FALSE. !: Rigid-lid flag |
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50 | #endif |
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51 | |
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52 | !! * module variables |
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53 | INTEGER :: & |
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54 | nspg = 0 ! type of surface pressure gradient scheme |
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55 | ! ! defined from lk_dynspg_... |
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56 | |
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57 | !! * Substitutions |
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58 | # include "domzgr_substitute.h90" |
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59 | # include "vectopt_loop_substitute.h90" |
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60 | !!---------------------------------------------------------------------- |
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61 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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62 | !! $Header$ |
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63 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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64 | !!---------------------------------------------------------------------- |
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65 | |
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66 | CONTAINS |
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67 | |
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68 | SUBROUTINE dyn_spg( kt, kindic ) |
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69 | !!---------------------------------------------------------------------- |
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70 | !! *** ROUTINE dyn_spg *** |
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71 | !! |
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72 | !! ** Purpose : compute the lateral ocean dynamics physics. |
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73 | !! |
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74 | !! History : |
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75 | !! 9.0 ! 05-12 (C. Talandier, G. Madec) Original code |
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76 | !!---------------------------------------------------------------------- |
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77 | !! * Arguments |
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78 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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79 | INTEGER, INTENT( out ) :: kindic ! solver flag |
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80 | |
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81 | !! * local declarations |
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82 | REAL(wp) :: z2dt ! temporary scalar |
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83 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & |
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84 | ztrdu, ztrdv ! 3D temporary workspace |
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85 | !!---------------------------------------------------------------------- |
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86 | |
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87 | IF( kt == nit000 ) CALL dyn_spg_ctl ! initialisation & control of options |
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88 | |
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89 | IF( l_trddyn ) THEN ! temporary save of ta and sa trends |
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90 | ztrdu(:,:,:) = ua(:,:,:) |
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91 | ztrdv(:,:,:) = va(:,:,:) |
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92 | ENDIF |
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93 | |
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94 | SELECT CASE ( nspg ) ! compute surf. pressure gradient trend and add it to the general trend |
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95 | CASE ( -1 ) ! esopa: test all possibility with control print |
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96 | CALL dyn_spg_exp ( kt ) |
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97 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg0 - Ua: ', mask1=umask, & |
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98 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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99 | CALL dyn_spg_ts ( kt ) |
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100 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg1 - Ua: ', mask1=umask, & |
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101 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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102 | CALL dyn_spg_flt ( kt, kindic ) |
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103 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg2 - Ua: ', mask1=umask, & |
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104 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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105 | CALL dyn_spg_flt_jki( kt, kindic ) |
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106 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg4 - Ua: ', mask1=umask, & |
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107 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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108 | CASE ( 0 ) ! explicit |
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109 | CALL dyn_spg_exp ( kt ) |
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110 | CASE ( 1 ) ! time-splitting |
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111 | CALL dyn_spg_ts ( kt ) |
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112 | CASE ( 2 ) ! filtered |
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113 | CALL dyn_spg_flt ( kt, kindic ) |
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114 | CASE ( 3 ) ! rigid lid |
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115 | CALL dyn_spg_rl ( kt, kindic ) |
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116 | CASE ( 4 ) ! filtered with j-k-i loop |
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117 | CALL dyn_spg_flt_jki( kt, kindic ) |
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118 | END SELECT |
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119 | |
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120 | ! ! save the horizontal diffusive trends for further diagnostics |
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121 | IF( l_trddyn ) THEN |
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122 | SELECT CASE ( nspg ) |
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123 | CASE ( 0, 1, 3 ) |
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124 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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125 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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126 | CASE( 2 ) |
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127 | z2dt = 2. * rdt |
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128 | IF( neuler == 0 .AND. kt == nit000 ) z2dt = rdt |
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129 | ztrdu(:,:,:) = ( ua(:,:,:) - ub(:,:,:) ) / z2dt - ztrdu(:,:,:) |
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130 | ztrdv(:,:,:) = ( va(:,:,:) - vb(:,:,:) ) / z2dt - ztrdv(:,:,:) |
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131 | END SELECT |
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132 | CALL trd_mod( ztrdu, ztrdv, jpdtdspg, 'DYN', kt ) |
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133 | ENDIF |
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134 | |
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135 | ! ! print mean trends (used for debugging) |
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136 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg - Ua: ', mask1=umask, & |
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137 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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138 | |
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139 | END SUBROUTINE dyn_spg |
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140 | |
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141 | |
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142 | SUBROUTINE dyn_spg_ctl |
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143 | !!--------------------------------------------------------------------- |
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144 | !! *** ROUTINE dyn_spg_ctl *** |
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145 | !! |
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146 | !! ** Purpose : Control the consistency between cpp options for |
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147 | !! surface pressure gradient schemes |
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148 | !! |
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149 | !! History : |
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150 | !! 9.0 ! 05-10 (V. Garnier) Original code : spg re-organization |
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151 | !!---------------------------------------------------------------------- |
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152 | !! * Local declarations |
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153 | INTEGER :: ioptio |
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154 | !!---------------------------------------------------------------------- |
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155 | |
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156 | ! Parameter control and print |
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157 | ! --------------------------- |
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158 | ! Control print |
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159 | IF(lwp) THEN |
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160 | WRITE(numout,*) |
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161 | WRITE(numout,*) 'dyn_spg_ctl : choice of the surface pressure gradient scheme' |
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162 | WRITE(numout,*) '~~~~~~~~~~~' |
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163 | WRITE(numout,*) ' Explicit free surface lk_dynspg_exp = ', lk_dynspg_exp |
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164 | WRITE(numout,*) ' Free surface with time splitting lk_dynspg_ts = ', lk_dynspg_ts |
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165 | WRITE(numout,*) ' Filtered free surface cst volume lk_dynspg_flt = ', lk_dynspg_flt |
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166 | WRITE(numout,*) ' Rigid-lid case lk_dynspg_rl = ', lk_dynspg_rl |
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167 | ENDIF |
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168 | |
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169 | ! Control of surface pressure gradient scheme options |
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170 | ! --------------------------------------------------- |
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171 | ioptio = 0 |
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172 | IF(lk_dynspg_exp) ioptio = ioptio + 1 |
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173 | IF(lk_dynspg_ts ) ioptio = ioptio + 1 |
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174 | IF(lk_dynspg_flt) ioptio = ioptio + 1 |
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175 | IF(lk_dynspg_rl ) ioptio = ioptio + 1 |
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176 | |
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177 | IF( ( ioptio > 1 .AND. .NOT. lk_esopa ) .OR. ioptio == 0 ) THEN |
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178 | IF(lwp) WRITE(numout,cform_err) |
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179 | IF(lwp) WRITE(numout,*) ' Choose only one surface pressure gradient scheme with a key cpp' |
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180 | nstop = nstop + 1 |
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181 | ENDIF |
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182 | |
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183 | IF( lk_esopa ) nspg = -1 |
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184 | IF( lk_dynspg_exp) nspg = 0 |
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185 | IF( lk_dynspg_ts ) nspg = 1 |
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186 | IF( lk_dynspg_flt) nspg = 2 |
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187 | IF( lk_dynspg_rl ) nspg = 3 |
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188 | IF( lk_dynspg_flt .AND. lk_jki ) nspg = 4 |
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189 | |
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190 | IF(lwp) THEN |
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191 | WRITE(numout,*) |
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192 | IF( nspg == -1 ) WRITE(numout,*) ' ESOPA test All scheme used except rigid-lid' |
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193 | IF( nspg == 0 ) WRITE(numout,*) ' explicit free surface' |
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194 | IF( nspg == 1 ) WRITE(numout,*) ' free surface with time splitting scheme' |
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195 | IF( nspg == 2 ) WRITE(numout,*) ' filtered free surface' |
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196 | IF( nspg == 3 ) WRITE(numout,*) ' rigid-lid' |
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197 | IF( nspg == 4 ) WRITE(numout,*) ' filtered free surface with j-k-i loop' |
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198 | ENDIF |
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199 | |
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200 | ! Control of timestep choice |
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201 | ! -------------------------- |
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202 | IF( lk_dynspg_ts ) THEN |
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203 | IF( MOD( rdt , rdtbt ) /= 0. ) THEN |
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204 | IF(lwp) WRITE(numout,cform_err) |
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205 | IF(lwp) WRITE(numout,*) ' The barotropic timestep must be an integer divisor of the baroclinic timestep' |
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206 | nstop = nstop + 1 |
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207 | ENDIF |
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208 | ENDIF |
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209 | |
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210 | END SUBROUTINE dyn_spg_ctl |
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211 | |
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212 | !!====================================================================== |
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213 | END MODULE dynspg |
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