1 | MODULE dynzad |
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2 | !!====================================================================== |
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3 | !! *** MODULE dynzad *** |
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4 | !! Ocean dynamics : vertical advection trend |
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5 | !!====================================================================== |
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6 | |
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7 | !!---------------------------------------------------------------------- |
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8 | !! dyn_zad : vertical advection momentum trend |
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9 | !!---------------------------------------------------------------------- |
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10 | !! * Modules used |
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11 | USE oce ! ocean dynamics and tracers |
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12 | USE dom_oce ! ocean space and time domain |
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13 | USE in_out_manager ! I/O manager |
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14 | USE trddyn_oce ! dynamics trends diagnostics variables |
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15 | USE flxrnf ! ??? |
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16 | |
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17 | IMPLICIT NONE |
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18 | PRIVATE |
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19 | |
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20 | !! * Accessibility |
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21 | PUBLIC dyn_zad ! routine called by step.F90 |
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22 | |
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23 | !! * Substitutions |
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24 | # include "domzgr_substitute.h90" |
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25 | # include "vectopt_loop_substitute.h90" |
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26 | !!---------------------------------------------------------------------- |
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27 | !! OPA 9.0 , LODYC-IPSL (2003) |
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28 | !!---------------------------------------------------------------------- |
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29 | |
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30 | CONTAINS |
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31 | |
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32 | #if defined key_autotasking |
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33 | !!---------------------------------------------------------------------- |
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34 | !! 'key_autotasking' j-k-i loops (j-slab) |
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35 | !!---------------------------------------------------------------------- |
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36 | |
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37 | SUBROUTINE dyn_zad( kt ) |
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38 | !!---------------------------------------------------------------------- |
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39 | !! *** ROUTINE dynzad *** |
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40 | !! |
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41 | !! ** Purpose : Compute the now vertical momentum advection trend and |
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42 | !! add it to the general trend of momentum equation. |
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43 | !! |
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44 | !! ** Method : Use j-slab (j-k-i loops) for auto-tasking |
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45 | !! The now vertical advection of momentum is given by: |
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46 | !! w dz(u) = ua + 1/(e1u*e2u*e3u) mk+1[ mi(e1t*e2t*wn) dk(un) ] |
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47 | !! w dz(v) = va + 1/(e1v*e2v*e3v) mk+1[ mj(e1t*e2t*wn) dk(vn) ] |
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48 | !! Add this trend to the general trend (ua,va): |
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49 | !! (ua,va) = (ua,va) + w dz(u,v) |
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50 | !! |
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51 | !! ** Action : - Update (ua,va) with the vert. momentum advection trends |
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52 | !! - Save the trends in (utrd,vtrd) ('key_trddyn') |
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53 | !! |
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54 | !! History : |
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55 | !! 6.0 ! 91-01 (G. Madec) Original code |
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56 | !! 7.0 ! 91-11 (G. Madec) |
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57 | !! 7.5 ! 96-01 (G. Madec) statement function for e3 |
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58 | !! 8.5 ! 02-07 (G. Madec) Free form, F90 |
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59 | !!---------------------------------------------------------------------- |
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60 | !! * modules used |
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61 | USE oce, ONLY: zwuw => ta, & ! use ta as 3D workspace |
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62 | zwvw => sa ! use sa as 3D workspace |
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63 | |
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64 | !! * Arguments |
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65 | INTEGER, INTENT( in ) :: kt ! ocean time-step inedx |
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66 | |
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67 | !! * Local declarations |
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68 | INTEGER :: ji, jj, jk ! dummy loop indices |
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69 | REAL(wp) :: zvn, zua, zva ! temporary scalars |
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70 | REAL(wp), DIMENSION(jpi) :: & |
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71 | zww ! temporary workspace |
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72 | !!---------------------------------------------------------------------- |
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73 | |
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74 | IF( kt == nit000 ) THEN |
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75 | IF(lwp) WRITE(numout,*) |
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76 | IF(lwp) WRITE(numout,*) 'dyn_zad : arakawa advection scheme' |
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77 | IF(lwp) WRITE(numout,*) '~~~~~~~ Auto-tasking case, j-slab, no vector opt.' |
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78 | ENDIF |
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79 | |
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80 | ! ! =============== |
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81 | DO jj = 2, jpjm1 ! Vertical slab |
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82 | ! ! =============== |
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83 | |
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84 | ! Vertical momentum advection at level w and u- and v- vertical |
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85 | ! ---------------------------------------------------------------- |
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86 | DO jk = 2, jpkm1 |
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87 | ! vertical fluxes |
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88 | DO ji = 2, jpi |
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89 | zww(ji) = 0.25 * e1t(ji,jj) * e2t(ji,jj) * wn(ji,jj,jk) |
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90 | END DO |
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91 | ! vertical momentum advection at w-point |
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92 | DO ji = 2, jpim1 |
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93 | zvn = 0.25 * e1t(ji,jj+1) * e2t(ji,jj+1) * wn(ji,jj+1,jk) |
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94 | zwuw(ji,jj,jk) = ( zww(ji+1) + zww(ji) ) * ( un(ji,jj,jk-1)-un(ji,jj,jk) ) |
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95 | zwvw(ji,jj,jk) = ( zvn + zww(ji) ) * ( vn(ji,jj,jk-1)-vn(ji,jj,jk) ) |
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96 | END DO |
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97 | END DO |
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98 | |
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99 | ! Surface and bottom values set to zero |
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100 | DO ji = 2, jpim1 |
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101 | zwuw(ji,jj, 1 ) = 0.e0 |
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102 | zwvw(ji,jj, 1 ) = 0.e0 |
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103 | zwuw(ji,jj,jpk) = 0.e0 |
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104 | zwvw(ji,jj,jpk) = 0.e0 |
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105 | END DO |
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106 | |
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107 | ! Vertical momentum advection at u- and v-points |
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108 | ! ---------------------------------------------- |
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109 | DO jk = 1, jpkm1 |
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110 | DO ji = 2, jpim1 |
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111 | ! vertical momentum advective trends |
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112 | zua = - ( zwuw(ji,jj,jk) + zwuw(ji,jj,jk+1) ) / ( e1u(ji,jj) * e2u(ji,jj) * fse3u(ji,jj,jk) ) |
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113 | zva = - ( zwvw(ji,jj,jk) + zwvw(ji,jj,jk+1) ) / ( e1v(ji,jj) * e2v(ji,jj) * fse3v(ji,jj,jk) ) |
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114 | ! add the trends to the general momentum trends |
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115 | ua(ji,jj,jk) = ua(ji,jj,jk) + zua |
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116 | va(ji,jj,jk) = va(ji,jj,jk) + zva |
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117 | # if defined key_trddyn || defined key_trd_vor |
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118 | ! save the trends for diagnostics |
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119 | utrd(ji,jj,jk,6) = zua |
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120 | vtrd(ji,jj,jk,6) = zva |
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121 | # endif |
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122 | END DO |
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123 | END DO |
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124 | ! ! =============== |
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125 | END DO ! End of slab |
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126 | ! ! =============== |
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127 | |
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128 | IF(l_ctl) THEN ! print sum trends (used for debugging) |
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129 | zua = SUM( ua(2:nictl,2:njctl,1:jpkm1) * umask(2:nictl,2:njctl,1:jpkm1) ) |
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130 | zva = SUM( va(2:nictl,2:njctl,1:jpkm1) * vmask(2:nictl,2:njctl,1:jpkm1) ) |
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131 | WRITE(numout,*) ' zad - Ua: ', zua-u_ctl, ' Va: ', zva-v_ctl |
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132 | u_ctl = zua ; v_ctl = zva |
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133 | ENDIF |
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134 | |
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135 | END SUBROUTINE dyn_zad |
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136 | |
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137 | #else |
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138 | !!---------------------------------------------------------------------- |
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139 | !! Default option k-j-i loop (vector opt.) |
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140 | !!---------------------------------------------------------------------- |
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141 | |
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142 | SUBROUTINE dyn_zad ( kt ) |
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143 | !!---------------------------------------------------------------------- |
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144 | !! *** ROUTINE dynzad *** |
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145 | !! |
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146 | !! ** Purpose : Compute the now vertical momentum advection trend and |
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147 | !! add it to the general trend of momentum equation. |
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148 | !! |
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149 | !! ** Method : The now vertical advection of momentum is given by: |
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150 | !! w dz(u) = ua + 1/(e1u*e2u*e3u) mk+1[ mi(e1t*e2t*wn) dk(un) ] |
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151 | !! w dz(v) = va + 1/(e1v*e2v*e3v) mk+1[ mj(e1t*e2t*wn) dk(vn) ] |
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152 | !! Add this trend to the general trend (ua,va): |
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153 | !! (ua,va) = (ua,va) + w dz(u,v) |
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154 | !! |
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155 | !! ** Action : - Update (ua,va) with the vert. momentum adv. trends |
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156 | !! - Save the trends in (utrd,vtrd) ('key_trddyn') |
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157 | !! |
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158 | !! History : |
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159 | !! 8.5 ! 02-07 (G. Madec) Original code |
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160 | !!---------------------------------------------------------------------- |
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161 | !! * modules used |
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162 | USE oce, ONLY: zwuw => ta, & ! use ta as 3D workspace |
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163 | zwvw => sa ! use sa as 3D workspace |
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164 | !! * Arguments |
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165 | INTEGER, INTENT( in ) :: kt ! ocean time-step inedx |
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166 | |
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167 | !! * Local declarations |
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168 | INTEGER :: ji, jj, jk ! dummy loop indices |
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169 | REAL(wp) :: zua, zva ! temporary scalars |
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170 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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171 | zww ! temporary workspace |
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172 | !!---------------------------------------------------------------------- |
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173 | |
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174 | IF( kt == nit000 ) THEN |
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175 | IF(lwp)WRITE(numout,*) |
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176 | IF(lwp)WRITE(numout,*) 'dyn_zad : arakawa advection scheme' |
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177 | IF(lwp)WRITE(numout,*) '~~~~~~~ vector optimization k-j-i loop' |
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178 | ENDIF |
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179 | |
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180 | ! Vertical momentum advection at level w and u- and v- vertical |
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181 | ! ------------------------------------------------------------- |
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182 | DO jk = 2, jpkm1 |
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183 | ! vertical fluxes |
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184 | DO jj = 2, jpj |
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185 | DO ji = fs_2, jpi ! vector opt. |
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186 | zww(ji,jj) = 0.25 * e1t(ji,jj) * e2t(ji,jj) * wn(ji,jj,jk) |
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187 | END DO |
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188 | END DO |
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189 | ! vertical momentum advection at w-point |
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190 | DO jj = 2, jpjm1 |
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191 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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192 | zwuw(ji,jj,jk) = ( zww(ji+1,jj ) + zww(ji,jj) ) * ( un(ji,jj,jk-1)-un(ji,jj,jk) ) |
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193 | zwvw(ji,jj,jk) = ( zww(ji ,jj+1) + zww(ji,jj) ) * ( vn(ji,jj,jk-1)-vn(ji,jj,jk) ) |
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194 | END DO |
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195 | END DO |
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196 | END DO |
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197 | |
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198 | ! Surface and bottom values set to zero |
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199 | DO jj = 2, jpjm1 |
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200 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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201 | zwuw(ji,jj, 1 ) = 0.e0 |
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202 | zwvw(ji,jj, 1 ) = 0.e0 |
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203 | zwuw(ji,jj,jpk) = 0.e0 |
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204 | zwvw(ji,jj,jpk) = 0.e0 |
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205 | END DO |
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206 | END DO |
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207 | |
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208 | |
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209 | ! Vertical momentum advection at u- and v-points |
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210 | ! ---------------------------------------------- |
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211 | DO jk = 1, jpkm1 |
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212 | DO jj = 2, jpjm1 |
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213 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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214 | ! vertical momentum advective trends |
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215 | zua = - ( zwuw(ji,jj,jk) + zwuw(ji,jj,jk+1) ) / ( e1u(ji,jj) * e2u(ji,jj) * fse3u(ji,jj,jk) ) |
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216 | zva = - ( zwvw(ji,jj,jk) + zwvw(ji,jj,jk+1) ) / ( e1v(ji,jj) * e2v(ji,jj) * fse3v(ji,jj,jk) ) |
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217 | ! add the trends to the general momentum trends |
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218 | ua(ji,jj,jk) = ua(ji,jj,jk) + zua |
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219 | va(ji,jj,jk) = va(ji,jj,jk) + zva |
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220 | # if defined key_trddyn || defined key_trd_vor |
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221 | ! save the trends for diagnostics |
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222 | utrd(ji,jj,jk,6) = zua |
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223 | vtrd(ji,jj,jk,6) = zva |
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224 | # endif |
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225 | END DO |
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226 | END DO |
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227 | END DO |
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228 | |
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229 | IF(l_ctl) THEN ! print sum trends (used for debugging) |
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230 | zua = SUM( ua(2:nictl,2:njctl,1:jpkm1) * umask(2:nictl,2:njctl,1:jpkm1) ) |
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231 | zva = SUM( va(2:nictl,2:njctl,1:jpkm1) * vmask(2:nictl,2:njctl,1:jpkm1) ) |
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232 | WRITE(numout,*) ' zad - Ua: ', zua-u_ctl, ' Va: ', zva-v_ctl |
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233 | u_ctl = zua ; v_ctl = zva |
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234 | ENDIF |
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235 | |
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236 | END SUBROUTINE dyn_zad |
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237 | #endif |
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238 | |
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239 | !!====================================================================== |
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240 | END MODULE dynzad |
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