1 | MODULE diffusion_e_mod |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2014 Leibniz Universitaet Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: diffusion_e.f90 1341 2014-03-25 19:48:09Z keck $ |
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27 | ! |
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28 | ! 1340 2014-03-25 19:45:13Z kanani |
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29 | ! REAL constants defined as wp-kind |
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30 | ! |
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31 | ! 1320 2014-03-20 08:40:49Z raasch |
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32 | ! ONLY-attribute added to USE-statements, |
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33 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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34 | ! kinds are defined in new module kinds, |
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35 | ! revision history before 2012 removed, |
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36 | ! comment fields (!:) to be used for variable explanations added to |
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37 | ! all variable declaration statements |
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38 | ! |
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39 | ! 1257 2013-11-08 15:18:40Z raasch |
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40 | ! openacc loop and loop vector clauses removed |
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41 | ! |
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42 | ! 1179 2013-06-14 05:57:58Z raasch |
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43 | ! use_reference renamed use_single_reference_value |
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44 | ! |
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45 | ! 1171 2013-05-30 11:27:45Z raasch |
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46 | ! use_reference-case activated in accelerator version |
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47 | ! |
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48 | ! 1128 2013-04-12 06:19:32Z raasch |
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49 | ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, |
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50 | ! j_north |
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51 | ! |
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52 | ! 1065 2012-11-22 17:42:36Z hoffmann |
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53 | ! Enabled the claculation of diss in case of turbulence = .TRUE. (parameterized |
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54 | ! effects of turbulence on autoconversion and accretion in two-moments cloud |
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55 | ! physics scheme). |
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56 | ! |
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57 | ! 1036 2012-10-22 13:43:42Z raasch |
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58 | ! code put under GPL (PALM 3.9) |
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59 | ! |
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60 | ! 1015 2012-09-27 09:23:24Z raasch |
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61 | ! accelerator version (*_acc) added, |
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62 | ! adjustment of mixing length to the Prandtl mixing length at first grid point |
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63 | ! above ground removed |
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64 | ! |
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65 | ! 1010 2012-09-20 07:59:54Z raasch |
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66 | ! cpp switch __nopointer added for pointer free version |
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67 | ! |
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68 | ! 1001 2012-09-13 14:08:46Z raasch |
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69 | ! most arrays comunicated by module instead of parameter list |
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70 | ! |
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71 | ! 825 2012-02-19 03:03:44Z raasch |
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72 | ! wang_collision_kernel renamed wang_kernel |
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73 | ! |
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74 | ! Revision 1.1 1997/09/19 07:40:24 raasch |
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75 | ! Initial revision |
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76 | ! |
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77 | ! |
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78 | ! Description: |
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79 | ! ------------ |
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80 | ! Diffusion- and dissipation terms for the TKE |
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81 | !------------------------------------------------------------------------------! |
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82 | |
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83 | PRIVATE |
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84 | PUBLIC diffusion_e, diffusion_e_acc |
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85 | |
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86 | |
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87 | INTERFACE diffusion_e |
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88 | MODULE PROCEDURE diffusion_e |
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89 | MODULE PROCEDURE diffusion_e_ij |
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90 | END INTERFACE diffusion_e |
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91 | |
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92 | INTERFACE diffusion_e_acc |
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93 | MODULE PROCEDURE diffusion_e_acc |
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94 | END INTERFACE diffusion_e_acc |
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95 | |
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96 | CONTAINS |
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97 | |
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98 | |
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99 | !------------------------------------------------------------------------------! |
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100 | ! Call for all grid points |
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101 | !------------------------------------------------------------------------------! |
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102 | SUBROUTINE diffusion_e( var, var_reference ) |
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103 | |
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104 | USE arrays_3d, & |
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105 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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106 | |
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107 | USE control_parameters, & |
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108 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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109 | wall_adjustment, wall_adjustment_factor |
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110 | |
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111 | USE grid_variables, & |
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112 | ONLY: ddx2, ddy2 |
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113 | |
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114 | USE indices, & |
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115 | ONLY: nxl, nxr, nyn, nys, nzb, nzb_s_inner, nzt |
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116 | |
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117 | USE kinds |
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118 | |
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119 | USE particle_attributes, & |
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120 | ONLY: use_sgs_for_particles, wang_kernel |
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121 | |
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122 | IMPLICIT NONE |
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123 | |
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124 | INTEGER(iwp) :: i !: |
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125 | INTEGER(iwp) :: j !: |
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126 | INTEGER(iwp) :: k !: |
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127 | REAL(wp) :: dvar_dz !: |
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128 | REAL(wp) :: l_stable !: |
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129 | REAL(wp) :: var_reference !: |
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130 | |
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131 | #if defined( __nopointer ) |
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132 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
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133 | #else |
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134 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
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135 | #endif |
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136 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: dissipation !: |
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137 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: l !: |
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138 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: ll !: |
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139 | |
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140 | |
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141 | ! |
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142 | !-- This if clause must be outside the k-loop because otherwise |
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143 | !-- runtime errors occur with -C hopt on NEC |
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144 | IF ( use_single_reference_value ) THEN |
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145 | |
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146 | DO i = nxl, nxr |
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147 | DO j = nys, nyn |
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148 | DO k = nzb_s_inner(j,i)+1, nzt |
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149 | ! |
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150 | !-- Calculate the mixing length (for dissipation) |
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151 | dvar_dz = atmos_ocean_sign * & |
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152 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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153 | IF ( dvar_dz > 0.0_wp ) THEN |
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154 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
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155 | SQRT( g / var_reference * dvar_dz ) + 1E-5_wp |
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156 | ELSE |
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157 | l_stable = l_grid(k) |
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158 | ENDIF |
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159 | ! |
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160 | !-- Adjustment of the mixing length |
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161 | IF ( wall_adjustment ) THEN |
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162 | l(k,j) = MIN( wall_adjustment_factor * & |
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163 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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164 | l_grid(k), l_stable ) |
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165 | ll(k,j) = MIN( wall_adjustment_factor * & |
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166 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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167 | l_grid(k) ) |
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168 | ELSE |
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169 | l(k,j) = MIN( l_grid(k), l_stable ) |
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170 | ll(k,j) = l_grid(k) |
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171 | ENDIF |
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172 | |
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173 | ENDDO |
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174 | ENDDO |
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175 | |
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176 | ! |
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177 | !-- Calculate the tendency terms |
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178 | DO j = nys, nyn |
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179 | DO k = nzb_s_inner(j,i)+1, nzt |
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180 | |
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181 | dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & |
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182 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
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183 | |
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184 | tend(k,j,i) = tend(k,j,i) & |
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185 | + ( & |
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186 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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187 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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188 | ) * ddx2 & |
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189 | + ( & |
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190 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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191 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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192 | ) * ddy2 & |
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193 | + ( & |
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194 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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195 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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196 | ) * ddzw(k) & |
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197 | - dissipation(k,j) |
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198 | |
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199 | ENDDO |
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200 | ENDDO |
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201 | |
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202 | ! |
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203 | !-- Store dissipation if needed for calculating the sgs particle |
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204 | !-- velocities |
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205 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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206 | turbulence ) THEN |
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207 | DO j = nys, nyn |
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208 | DO k = nzb_s_inner(j,i)+1, nzt |
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209 | diss(k,j,i) = dissipation(k,j) |
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210 | ENDDO |
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211 | ENDDO |
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212 | ENDIF |
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213 | |
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214 | ENDDO |
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215 | |
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216 | ELSE |
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217 | |
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218 | DO i = nxl, nxr |
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219 | DO j = nys, nyn |
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220 | DO k = nzb_s_inner(j,i)+1, nzt |
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221 | ! |
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222 | !-- Calculate the mixing length (for dissipation) |
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223 | dvar_dz = atmos_ocean_sign * & |
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224 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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225 | IF ( dvar_dz > 0.0_wp ) THEN |
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226 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
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227 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp |
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228 | ELSE |
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229 | l_stable = l_grid(k) |
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230 | ENDIF |
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231 | ! |
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232 | !-- Adjustment of the mixing length |
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233 | IF ( wall_adjustment ) THEN |
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234 | l(k,j) = MIN( wall_adjustment_factor * & |
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235 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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236 | l_grid(k), l_stable ) |
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237 | ll(k,j) = MIN( wall_adjustment_factor * & |
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238 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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239 | l_grid(k) ) |
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240 | ELSE |
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241 | l(k,j) = MIN( l_grid(k), l_stable ) |
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242 | ll(k,j) = l_grid(k) |
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243 | ENDIF |
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244 | |
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245 | ENDDO |
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246 | ENDDO |
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247 | |
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248 | ! |
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249 | !-- Calculate the tendency terms |
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250 | DO j = nys, nyn |
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251 | DO k = nzb_s_inner(j,i)+1, nzt |
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252 | |
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253 | dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & |
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254 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
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255 | |
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256 | tend(k,j,i) = tend(k,j,i) & |
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257 | + ( & |
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258 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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259 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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260 | ) * ddx2 & |
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261 | + ( & |
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262 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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263 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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264 | ) * ddy2 & |
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265 | + ( & |
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266 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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267 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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268 | ) * ddzw(k) & |
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269 | - dissipation(k,j) |
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270 | |
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271 | ENDDO |
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272 | ENDDO |
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273 | |
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274 | ! |
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275 | !-- Store dissipation if needed for calculating the sgs particle |
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276 | !-- velocities |
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277 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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278 | turbulence ) THEN |
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279 | DO j = nys, nyn |
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280 | DO k = nzb_s_inner(j,i)+1, nzt |
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281 | diss(k,j,i) = dissipation(k,j) |
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282 | ENDDO |
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283 | ENDDO |
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284 | ENDIF |
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285 | |
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286 | ENDDO |
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287 | |
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288 | ENDIF |
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289 | |
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290 | ! |
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291 | !-- Boundary condition for dissipation |
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292 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
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293 | DO i = nxl, nxr |
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294 | DO j = nys, nyn |
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295 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
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296 | ENDDO |
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297 | ENDDO |
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298 | ENDIF |
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299 | |
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300 | END SUBROUTINE diffusion_e |
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301 | |
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302 | |
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303 | !------------------------------------------------------------------------------! |
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304 | ! Call for all grid points - accelerator version |
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305 | !------------------------------------------------------------------------------! |
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306 | SUBROUTINE diffusion_e_acc( var, var_reference ) |
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307 | |
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308 | USE arrays_3d, & |
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309 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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310 | |
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311 | USE control_parameters, & |
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312 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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313 | wall_adjustment, wall_adjustment_factor |
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314 | |
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315 | USE grid_variables, & |
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316 | ONLY: ddx2, ddy2 |
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317 | |
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318 | USE indices, & |
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319 | ONLY: i_left, i_right, j_north, j_south, nzb_s_inner, nzt |
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320 | |
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321 | USE kinds |
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322 | |
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323 | USE particle_attributes, & |
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324 | ONLY: use_sgs_for_particles, wang_kernel |
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325 | |
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326 | IMPLICIT NONE |
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327 | |
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328 | INTEGER(iwp) :: i !: |
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329 | INTEGER(iwp) :: j !: |
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330 | INTEGER(iwp) :: k !: |
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331 | REAL(wp) :: dissipation !: |
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332 | REAL(wp) :: dvar_dz !: |
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333 | REAL(wp) :: l !: |
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334 | REAL(wp) :: ll !: |
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335 | REAL(wp) :: l_stable !: |
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336 | REAL(wp) :: var_reference !: |
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337 | |
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338 | #if defined( __nopointer ) |
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339 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
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340 | #else |
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341 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
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342 | #endif |
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343 | |
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344 | |
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345 | ! |
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346 | !-- This if clause must be outside the k-loop because otherwise |
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347 | !-- runtime errors occur with -C hopt on NEC |
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348 | IF ( use_single_reference_value ) THEN |
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349 | |
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350 | !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & |
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351 | !$acc present( nzb_s_inner, rif, tend, var, zu, zw ) |
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352 | DO i = i_left, i_right |
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353 | DO j = j_south, j_north |
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354 | DO k = 1, nzt |
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355 | |
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356 | IF ( k > nzb_s_inner(j,i) ) THEN |
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357 | ! |
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358 | !-- Calculate the mixing length (for dissipation) |
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359 | dvar_dz = atmos_ocean_sign * & |
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360 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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361 | IF ( dvar_dz > 0.0_wp ) THEN |
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362 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
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363 | SQRT( g / var_reference * dvar_dz ) + 1E-5_wp |
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364 | ELSE |
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365 | l_stable = l_grid(k) |
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366 | ENDIF |
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367 | ! |
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368 | !-- Adjustment of the mixing length |
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369 | IF ( wall_adjustment ) THEN |
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370 | l = MIN( wall_adjustment_factor * & |
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371 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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372 | l_grid(k), l_stable ) |
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373 | ll = MIN( wall_adjustment_factor * & |
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374 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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375 | l_grid(k) ) |
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376 | ELSE |
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377 | l = MIN( l_grid(k), l_stable ) |
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378 | ll = l_grid(k) |
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379 | ENDIF |
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380 | ! |
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381 | !-- Calculate the tendency terms |
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382 | dissipation = ( 0.19_wp + 0.74_wp * l / ll ) * & |
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383 | e(k,j,i) * SQRT( e(k,j,i) ) / l |
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384 | |
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385 | tend(k,j,i) = tend(k,j,i) & |
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386 | + ( & |
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387 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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388 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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389 | ) * ddx2 & |
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390 | + ( & |
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391 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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392 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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393 | ) * ddy2 & |
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394 | + ( & |
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395 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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396 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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397 | ) * ddzw(k) & |
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398 | - dissipation |
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399 | |
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400 | ! |
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401 | !-- Store dissipation if needed for calculating the sgs particle |
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402 | !-- velocities |
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403 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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404 | turbulence ) THEN |
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405 | diss(k,j,i) = dissipation |
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406 | ENDIF |
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407 | |
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408 | ENDIF |
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409 | |
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410 | ENDDO |
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411 | ENDDO |
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412 | ENDDO |
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413 | !$acc end kernels |
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414 | |
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415 | ELSE |
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416 | |
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417 | !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & |
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418 | !$acc present( nzb_s_inner, rif, tend, var, zu, zw ) |
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419 | DO i = i_left, i_right |
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420 | DO j = j_south, j_north |
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421 | DO k = 1, nzt |
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422 | |
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423 | IF ( k > nzb_s_inner(j,i) ) THEN |
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424 | ! |
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425 | !-- Calculate the mixing length (for dissipation) |
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426 | dvar_dz = atmos_ocean_sign * & |
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427 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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428 | IF ( dvar_dz > 0.0_wp ) THEN |
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429 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
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430 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp |
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431 | ELSE |
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432 | l_stable = l_grid(k) |
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433 | ENDIF |
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434 | ! |
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435 | !-- Adjustment of the mixing length |
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436 | IF ( wall_adjustment ) THEN |
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437 | l = MIN( wall_adjustment_factor * & |
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438 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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439 | l_grid(k), l_stable ) |
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440 | ll = MIN( wall_adjustment_factor * & |
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441 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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442 | l_grid(k) ) |
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443 | ELSE |
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444 | l = MIN( l_grid(k), l_stable ) |
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445 | ll = l_grid(k) |
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446 | ENDIF |
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447 | ! |
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448 | !-- Calculate the tendency terms |
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449 | dissipation = ( 0.19_wp + 0.74_wp * l / ll ) * & |
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450 | e(k,j,i) * SQRT( e(k,j,i) ) / l |
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451 | |
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452 | tend(k,j,i) = tend(k,j,i) & |
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453 | + ( & |
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454 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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455 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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456 | ) * ddx2 & |
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457 | + ( & |
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458 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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459 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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460 | ) * ddy2 & |
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461 | + ( & |
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462 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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463 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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464 | ) * ddzw(k) & |
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465 | - dissipation |
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466 | |
---|
467 | ! |
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468 | !-- Store dissipation if needed for calculating the sgs |
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469 | !-- particle velocities |
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470 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
---|
471 | turbulence ) THEN |
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472 | diss(k,j,i) = dissipation |
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473 | ENDIF |
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474 | |
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475 | ENDIF |
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476 | |
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477 | ENDDO |
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478 | ENDDO |
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479 | ENDDO |
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480 | !$acc end kernels |
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481 | |
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482 | ENDIF |
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483 | |
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484 | ! |
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485 | !-- Boundary condition for dissipation |
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486 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
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487 | !$acc kernels present( diss, nzb_s_inner ) |
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488 | DO i = i_left, i_right |
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489 | DO j = j_south, j_north |
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490 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
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491 | ENDDO |
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492 | ENDDO |
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493 | !$acc end kernels |
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494 | ENDIF |
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495 | |
---|
496 | END SUBROUTINE diffusion_e_acc |
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497 | |
---|
498 | |
---|
499 | !------------------------------------------------------------------------------! |
---|
500 | ! Call for grid point i,j |
---|
501 | !------------------------------------------------------------------------------! |
---|
502 | SUBROUTINE diffusion_e_ij( i, j, var, var_reference ) |
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503 | |
---|
504 | USE arrays_3d, & |
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505 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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506 | |
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507 | USE control_parameters, & |
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508 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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509 | wall_adjustment, wall_adjustment_factor |
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510 | |
---|
511 | USE grid_variables, & |
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512 | ONLY: ddx2, ddy2 |
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513 | |
---|
514 | USE indices, & |
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515 | ONLY: nzb, nzb_s_inner, nzt |
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516 | |
---|
517 | USE kinds |
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518 | |
---|
519 | USE particle_attributes, & |
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520 | ONLY: use_sgs_for_particles, wang_kernel |
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521 | |
---|
522 | IMPLICIT NONE |
---|
523 | |
---|
524 | INTEGER(iwp) :: i !: |
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525 | INTEGER(iwp) :: j !: |
---|
526 | INTEGER(iwp) :: k !: |
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527 | REAL(wp) :: dvar_dz !: |
---|
528 | REAL(wp) :: l_stable !: |
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529 | REAL(wp) :: var_reference !: |
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530 | |
---|
531 | #if defined( __nopointer ) |
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532 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
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533 | #else |
---|
534 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
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535 | #endif |
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536 | REAL(wp), DIMENSION(nzb+1:nzt) :: dissipation !: |
---|
537 | REAL(wp), DIMENSION(nzb+1:nzt) :: l !: |
---|
538 | REAL(wp), DIMENSION(nzb+1:nzt) :: ll !: |
---|
539 | |
---|
540 | |
---|
541 | ! |
---|
542 | !-- Calculate the mixing length (for dissipation) |
---|
543 | DO k = nzb_s_inner(j,i)+1, nzt |
---|
544 | dvar_dz = atmos_ocean_sign * & |
---|
545 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
---|
546 | IF ( dvar_dz > 0.0_wp ) THEN |
---|
547 | IF ( use_single_reference_value ) THEN |
---|
548 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
---|
549 | SQRT( g / var_reference * dvar_dz ) + 1E-5_wp |
---|
550 | ELSE |
---|
551 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
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552 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp |
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553 | ENDIF |
---|
554 | ELSE |
---|
555 | l_stable = l_grid(k) |
---|
556 | ENDIF |
---|
557 | ! |
---|
558 | !-- Adjustment of the mixing length |
---|
559 | IF ( wall_adjustment ) THEN |
---|
560 | l(k) = MIN( wall_adjustment_factor * & |
---|
561 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k), & |
---|
562 | l_stable ) |
---|
563 | ll(k) = MIN( wall_adjustment_factor * & |
---|
564 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k) ) |
---|
565 | ELSE |
---|
566 | l(k) = MIN( l_grid(k), l_stable ) |
---|
567 | ll(k) = l_grid(k) |
---|
568 | ENDIF |
---|
569 | ! |
---|
570 | !-- Calculate the tendency term |
---|
571 | dissipation(k) = ( 0.19_wp + 0.74_wp * l(k) / ll(k) ) * e(k,j,i) * & |
---|
572 | SQRT( e(k,j,i) ) / l(k) |
---|
573 | |
---|
574 | tend(k,j,i) = tend(k,j,i) & |
---|
575 | + ( & |
---|
576 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
---|
577 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
---|
578 | ) * ddx2 & |
---|
579 | + ( & |
---|
580 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
---|
581 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
---|
582 | ) * ddy2 & |
---|
583 | + ( & |
---|
584 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
---|
585 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
---|
586 | ) * ddzw(k) & |
---|
587 | - dissipation(k) |
---|
588 | |
---|
589 | ENDDO |
---|
590 | |
---|
591 | ! |
---|
592 | !-- Store dissipation if needed for calculating the sgs particle velocities |
---|
593 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
---|
594 | DO k = nzb_s_inner(j,i)+1, nzt |
---|
595 | diss(k,j,i) = dissipation(k) |
---|
596 | ENDDO |
---|
597 | ! |
---|
598 | !-- Boundary condition for dissipation |
---|
599 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
---|
600 | ENDIF |
---|
601 | |
---|
602 | END SUBROUTINE diffusion_e_ij |
---|
603 | |
---|
604 | END MODULE diffusion_e_mod |
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