1 | !> @file surface_layer_fluxes_mod.f90 |
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2 | !--------------------------------------------------------------------------------------------------! |
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3 | ! This file is part of the PALM model system. |
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4 | ! |
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5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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7 | ! (at your option) any later version. |
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8 | ! |
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9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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11 | ! Public License for more details. |
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12 | ! |
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13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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14 | ! <http://www.gnu.org/licenses/>. |
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15 | ! |
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16 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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17 | !--------------------------------------------------------------------------------------------------! |
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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: surface_layer_fluxes_mod.f90 4594 2020-07-09 15:01:00Z suehring $ |
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27 | ! Include k index in OMP PRIVATE statements |
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28 | ! |
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29 | ! 4593 2020-07-09 12:48:18Z suehring |
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30 | ! - Pre-calculate ln(z/z0) at each timestep in order to reduce the number of log-calculations |
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31 | ! - Bugfix - add missing density to fluxes of passive-scalars, chemistry and cloud-phyiscal |
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32 | ! quantities at upward-facing surfaces |
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33 | ! - Move if-statement out of inner loop |
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34 | ! - Remove unnecessary index referencing |
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35 | ! |
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36 | ! 4562 2020-06-12 08:38:47Z raasch |
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37 | ! File re-formatted to follow the PALM coding standard |
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38 | ! |
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39 | ! 4519 2020-05-05 17:33:30Z suehring |
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40 | ! Add missing computation of passive scalar scaling parameter |
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41 | ! |
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42 | ! 4370 2020-01-10 14:00:44Z raasch |
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43 | ! Bugfix: openacc porting for vector version of OL calculation added |
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44 | ! |
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45 | ! 4366 2020-01-09 08:12:43Z raasch |
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46 | ! Vector version for calculation of Obukhov length via Newton iteration added |
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47 | ! |
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48 | ! 4360 2020-01-07 11:25:50Z suehring |
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49 | ! Calculation of diagnostic-only 2-m potential temperature moved to diagnostic_output_quantities. |
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50 | ! |
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51 | ! 4298 2019-11-21 15:59:16Z suehring |
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52 | ! Calculation of 2-m temperature adjusted to the case the 2-m level is above the first grid point. |
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53 | ! |
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54 | ! 4258 2019-10-07 13:29:08Z suehring |
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55 | ! Initialization of Obukhov lenght also at vertical surfaces (if allocated). |
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56 | ! |
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57 | ! 4237 2019-09-25 11:33:42Z knoop |
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58 | ! Added missing OpenMP directives |
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59 | ! |
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60 | ! 4186 2019-08-23 16:06:14Z suehring |
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61 | ! - To enable limitation of Obukhov length, move it before exit-cycle construct. |
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62 | ! Further, change the limit to 10E-5 in order to get rid-off unrealistic peaks in the heat fluxes |
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63 | ! during nighttime |
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64 | ! - Unused variable removed |
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65 | ! |
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66 | ! 4182 2019-08-22 15:20:23Z scharf |
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67 | ! Corrected "Former revisions" section |
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68 | ! |
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69 | ! 3987 2019-05-22 09:52:13Z kanani |
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70 | ! Introduce alternative switch for debug output during timestepping |
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71 | ! |
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72 | ! 3885 2019-04-11 11:29:34Z kanani |
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73 | ! Changes related to global restructuring of location messages and introduction of additional debug |
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74 | ! messages |
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75 | ! |
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76 | ! 3881 2019-04-10 09:31:22Z suehring |
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77 | ! Assure that Obukhov length does not become zero |
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78 | ! |
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79 | ! 3834 2019-03-28 15:40:15Z forkel |
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80 | ! Added USE chem_gasphase_mod |
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81 | ! |
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82 | ! 3787 2019-03-07 08:43:54Z raasch |
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83 | ! Unused variables removed |
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84 | ! |
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85 | ! 3745 2019-02-15 18:57:56Z suehring |
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86 | ! Bugfix, missing calculation of 10cm temperature at vertical building walls, required for indoor |
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87 | ! model |
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88 | ! |
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89 | ! 3744 2019-02-15 18:38:58Z suehring |
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90 | ! Some interface calls moved to module_interface + cleanup |
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91 | ! |
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92 | ! 3668 2019-01-14 12:49:24Z maronga |
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93 | ! Removed methods "circular" and "lookup" |
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94 | ! |
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95 | ! 3655 2019-01-07 16:51:22Z knoop |
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96 | ! OpenACC port for SPEC |
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97 | ! |
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98 | ! Revision 1.1 1998/01/23 10:06:06 raasch |
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99 | ! Initial revision |
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100 | ! |
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101 | ! |
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102 | ! Description: |
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103 | ! ------------ |
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104 | !> Diagnostic computation of vertical fluxes in the constant flux layer from the values of the |
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105 | !> variables at grid point k=1 based on Newton iteration. |
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106 | !> |
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107 | !> @todo (Re)move large_scale_forcing actions |
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108 | !> @todo Check/optimize OpenMP directives |
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109 | !> @todo Simplify if conditions (which flux need to be computed in which case) |
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110 | !--------------------------------------------------------------------------------------------------! |
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111 | MODULE surface_layer_fluxes_mod |
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112 | |
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113 | USE arrays_3d, & |
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114 | ONLY: d_exner, & |
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115 | drho_air_zw, & |
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116 | e, & |
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117 | kh, & |
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118 | nc, & |
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119 | nr, & |
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120 | pt, & |
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121 | q, & |
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122 | ql, & |
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123 | qc, & |
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124 | qr, & |
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125 | s, & |
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126 | u, & |
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127 | v, & |
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128 | vpt, & |
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129 | w, & |
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130 | zu, & |
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131 | zw, & |
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132 | rho_air_zw |
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133 | |
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134 | |
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135 | USE basic_constants_and_equations_mod, & |
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136 | ONLY: g, & |
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137 | kappa, & |
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138 | lv_d_cp, & |
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139 | pi, & |
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140 | rd_d_rv |
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141 | |
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142 | USE chem_gasphase_mod, & |
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143 | ONLY: nvar |
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144 | |
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145 | USE chem_modules, & |
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146 | ONLY: constant_csflux |
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147 | |
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148 | USE cpulog |
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149 | |
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150 | USE control_parameters, & |
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151 | ONLY: air_chemistry, & |
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152 | cloud_droplets, & |
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153 | constant_heatflux, & |
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154 | constant_scalarflux, & |
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155 | constant_waterflux, & |
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156 | coupling_mode, & |
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157 | debug_output_timestep, & |
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158 | humidity, & |
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159 | ibc_e_b, & |
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160 | ibc_pt_b, & |
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161 | indoor_model, & |
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162 | land_surface, & |
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163 | large_scale_forcing, & |
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164 | loop_optimization, & |
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165 | lsf_surf, & |
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166 | message_string, & |
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167 | neutral, & |
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168 | passive_scalar, & |
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169 | pt_surface, & |
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170 | q_surface, & |
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171 | run_coupled, & |
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172 | surface_pressure, & |
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173 | simulated_time, & |
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174 | time_since_reference_point, & |
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175 | urban_surface, & |
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176 | use_free_convection_scaling, & |
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177 | zeta_max, & |
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178 | zeta_min |
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179 | |
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180 | USE grid_variables, & |
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181 | ONLY: dx, & |
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182 | dy |
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183 | |
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184 | USE indices, & |
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185 | ONLY: nzt |
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186 | |
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187 | USE kinds |
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188 | |
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189 | USE bulk_cloud_model_mod, & |
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190 | ONLY: bulk_cloud_model, & |
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191 | microphysics_morrison, & |
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192 | microphysics_seifert |
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193 | |
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194 | USE pegrid |
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195 | |
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196 | USE land_surface_model_mod, & |
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197 | ONLY: aero_resist_kray, & |
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198 | skip_time_do_lsm |
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199 | |
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200 | USE surface_mod, & |
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201 | ONLY : surf_def_h, & |
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202 | surf_def_v, & |
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203 | surf_lsm_h, & |
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204 | surf_lsm_v, & |
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205 | surf_type, & |
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206 | surf_usm_h, & |
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207 | surf_usm_v |
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208 | |
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209 | |
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210 | IMPLICIT NONE |
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211 | |
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212 | INTEGER(iwp) :: i !< loop index x direction |
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213 | INTEGER(iwp) :: j !< loop index y direction |
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214 | INTEGER(iwp) :: k !< loop index z direction |
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215 | INTEGER(iwp) :: l !< loop index for surf type |
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216 | |
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217 | LOGICAL :: coupled_run !< Flag for coupled atmosphere-ocean runs |
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218 | LOGICAL :: downward = .FALSE. !< Flag indicating downward-facing horizontal surface |
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219 | LOGICAL :: mom_uv = .FALSE. !< Flag indicating calculation of usvs and vsus at vertical surfaces |
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220 | LOGICAL :: mom_w = .FALSE. !< Flag indicating calculation of wsus and wsvs at vertical surfaces |
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221 | LOGICAL :: mom_tke = .FALSE. !< Flag indicating calculation of momentum fluxes at vertical surfaces used for TKE production |
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222 | LOGICAL :: surf_vertical !< Flag indicating vertical surfaces |
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223 | |
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224 | REAL(wp) :: e_s !< Saturation water vapor pressure |
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225 | REAL(wp) :: ol_max = 1.0E6_wp !< Maximum Obukhov length |
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226 | REAL(wp) :: z_mo !< Height of the constant flux layer where MOST is assumed |
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227 | |
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228 | TYPE(surf_type), POINTER :: surf !< surf-type array, used to generalize subroutines |
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229 | |
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230 | |
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231 | SAVE |
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232 | |
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233 | PRIVATE |
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234 | |
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235 | PUBLIC init_surface_layer_fluxes, & |
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236 | phi_m, & |
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237 | psi_h, & |
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238 | psi_m, & |
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239 | surface_layer_fluxes |
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240 | |
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241 | INTERFACE init_surface_layer_fluxes |
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242 | MODULE PROCEDURE init_surface_layer_fluxes |
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243 | END INTERFACE init_surface_layer_fluxes |
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244 | |
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245 | INTERFACE phi_m |
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246 | MODULE PROCEDURE phi_m |
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247 | END INTERFACE phi_m |
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248 | |
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249 | INTERFACE psi_h |
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250 | MODULE PROCEDURE psi_h |
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251 | END INTERFACE psi_h |
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252 | |
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253 | INTERFACE psi_m |
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254 | MODULE PROCEDURE psi_m |
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255 | END INTERFACE psi_m |
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256 | |
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257 | INTERFACE surface_layer_fluxes |
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258 | MODULE PROCEDURE surface_layer_fluxes |
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259 | END INTERFACE surface_layer_fluxes |
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260 | |
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261 | |
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262 | CONTAINS |
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263 | |
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264 | |
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265 | !--------------------------------------------------------------------------------------------------! |
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266 | ! Description: |
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267 | ! ------------ |
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268 | !> Main routine to compute the surface fluxes. |
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269 | !--------------------------------------------------------------------------------------------------! |
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270 | SUBROUTINE surface_layer_fluxes |
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271 | |
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272 | IMPLICIT NONE |
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273 | |
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274 | |
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275 | IF ( debug_output_timestep ) CALL debug_message( 'surface_layer_fluxes', 'start' ) |
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276 | |
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277 | surf_vertical = .FALSE. !< flag indicating vertically orientated surface elements |
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278 | downward = .FALSE. !< flag indicating downward-facing surface elements |
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279 | ! |
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280 | !-- First, precalculate ln(z/z0) for all surfaces. This is done each timestep, in order to account |
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281 | !-- for time-dependent roughness or user-modifications. |
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282 | DO l = 0, 1 |
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283 | IF ( surf_def_h(l)%ns >= 1 ) THEN |
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284 | surf => surf_def_h(l) |
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285 | CALL calc_ln |
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286 | ENDIF |
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287 | ENDDO |
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288 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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289 | surf => surf_lsm_h |
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290 | CALL calc_ln |
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291 | ENDIF |
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292 | IF ( surf_usm_h%ns >= 1 ) THEN |
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293 | surf => surf_usm_h |
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294 | CALL calc_ln |
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295 | ENDIF |
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296 | |
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297 | DO l = 0, 3 |
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298 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
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299 | surf => surf_def_v(l) |
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300 | CALL calc_ln |
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301 | ENDIF |
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302 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
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303 | surf => surf_lsm_v(l) |
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304 | CALL calc_ln |
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305 | ENDIF |
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306 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
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307 | surf => surf_usm_v(l) |
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308 | CALL calc_ln |
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309 | ENDIF |
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310 | ENDDO |
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311 | ! |
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312 | !-- Derive potential temperature and specific humidity at first grid level from the fields pt and q |
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313 | !-- First call for horizontal default-type surfaces (l=0 - upward facing, l=1 - downward facing) |
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314 | DO l = 0, 1 |
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315 | IF ( surf_def_h(l)%ns >= 1 ) THEN |
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316 | surf => surf_def_h(l) |
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317 | CALL calc_pt_q |
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318 | IF ( .NOT. neutral ) THEN |
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319 | CALL calc_pt_surface |
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320 | IF ( humidity ) THEN |
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321 | CALL calc_q_surface |
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322 | CALL calc_vpt_surface |
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323 | ENDIF |
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324 | ENDIF |
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325 | ENDIF |
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326 | ENDDO |
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327 | ! |
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328 | !-- Call for natural-type horizontal surfaces |
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329 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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330 | surf => surf_lsm_h |
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331 | CALL calc_pt_q |
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332 | ENDIF |
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333 | |
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334 | ! |
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335 | !-- Call for urban-type horizontal surfaces |
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336 | IF ( surf_usm_h%ns >= 1 ) THEN |
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337 | surf => surf_usm_h |
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338 | CALL calc_pt_q |
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339 | ENDIF |
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340 | |
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341 | ! |
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342 | !-- Call for natural-type vertical surfaces |
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343 | DO l = 0, 3 |
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344 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
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345 | surf => surf_lsm_v(l) |
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346 | CALL calc_pt_q |
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347 | ENDIF |
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348 | |
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349 | !-- Call for urban-type vertical surfaces |
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350 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
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351 | surf => surf_usm_v(l) |
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352 | CALL calc_pt_q |
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353 | ENDIF |
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354 | ENDDO |
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355 | |
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356 | ! |
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357 | !-- First, calculate the new Obukhov length from precalculated values of log(z/z0) and wind speeds. |
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358 | !-- As a second step, then calculate new friction velocity, followed by the new scaling |
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359 | !-- parameters (th*, q*, etc.), and the new surface fluxes, if required. Note, each routine is called |
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360 | !-- for different surface types. First call for default-type horizontal surfaces, for natural- and |
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361 | !-- urban-type surfaces. Note, here only upward-facing horizontal surfaces are treated. |
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362 | !-- Note, calculation of log(z/z0) is redone each timestep, in order to account for time-dependent |
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363 | !-- values. |
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364 | !-- Start with default-type upward-facing horizontal surfaces |
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365 | IF ( surf_def_h(0)%ns >= 1 ) THEN |
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366 | surf => surf_def_h(0) |
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367 | CALL calc_uvw_abs |
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368 | IF ( .NOT. neutral ) CALL calc_ol |
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369 | CALL calc_us |
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370 | CALL calc_scaling_parameters |
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371 | CALL calc_surface_fluxes |
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372 | ENDIF |
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373 | ! |
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374 | !-- Natural-type horizontal surfaces |
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375 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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376 | surf => surf_lsm_h |
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377 | CALL calc_uvw_abs |
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378 | IF ( .NOT. neutral ) CALL calc_ol |
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379 | CALL calc_us |
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380 | CALL calc_scaling_parameters |
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381 | CALL calc_surface_fluxes |
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382 | ENDIF |
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383 | ! |
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384 | !-- Urban-type horizontal surfaces |
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385 | IF ( surf_usm_h%ns >= 1 ) THEN |
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386 | surf => surf_usm_h |
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387 | CALL calc_uvw_abs |
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388 | IF ( .NOT. neutral ) CALL calc_ol |
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389 | CALL calc_us |
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390 | CALL calc_scaling_parameters |
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391 | CALL calc_surface_fluxes |
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392 | ! |
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393 | !-- Calculate 10cm temperature, required in indoor model |
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394 | IF ( indoor_model ) CALL calc_pt_near_surface ( '10cm' ) |
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395 | ENDIF |
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396 | |
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397 | ! |
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398 | !-- Treat downward-facing horizontal surfaces. Note, so far, these are always default type. |
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399 | !-- Stratification is not considered in this case, hence, no further distinction between different |
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400 | !-- most_method is required. |
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401 | IF ( surf_def_h(1)%ns >= 1 ) THEN |
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402 | downward = .TRUE. |
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403 | surf => surf_def_h(1) |
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404 | CALL calc_uvw_abs |
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405 | CALL calc_us |
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406 | CALL calc_surface_fluxes |
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407 | downward = .FALSE. |
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408 | ENDIF |
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409 | ! |
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410 | !-- Calculate surfaces fluxes at vertical surfaces for momentum and subgrid-scale TKE. No stability |
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411 | !-- is considered. Therefore, scaling parameters and Obukhov length do not need to be calculated and |
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412 | !-- no distinction in 'circular', 'Newton' or 'lookup' is necessary so far. Note, this will change |
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413 | !-- if stability is once considered. |
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414 | surf_vertical = .TRUE. |
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415 | ! |
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416 | !-- Calculate horizontal momentum fluxes at north- and south-facing surfaces(usvs). |
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417 | !-- For default-type surfaces |
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418 | mom_uv = .TRUE. |
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419 | DO l = 0, 1 |
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420 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
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421 | surf => surf_def_v(l) |
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422 | ! |
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423 | !-- Compute surface-parallel velocity |
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424 | CALL calc_uvw_abs_v_ugrid |
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425 | ! |
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426 | !-- Compute respective friction velocity on staggered grid |
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427 | CALL calc_us |
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428 | ! |
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429 | !-- Compute respective surface fluxes for momentum and TKE |
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430 | CALL calc_surface_fluxes |
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431 | ENDIF |
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432 | ENDDO |
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433 | ! |
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434 | !-- For natural-type surfaces. Please note, even though stability is not considered for the |
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435 | !-- calculation of momentum fluxes at vertical surfaces, scaling parameters and Obukhov length are |
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436 | !-- calculated nevertheless in this case. This is due to the requirement of ts in parameterization |
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437 | !-- of heat flux in land-surface model in case that aero_resist_kray is not true. |
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438 | IF ( .NOT. aero_resist_kray ) THEN |
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439 | DO l = 0, 1 |
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440 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
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441 | surf => surf_lsm_v(l) |
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442 | ! |
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443 | !-- Compute surface-parallel velocity |
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444 | CALL calc_uvw_abs_v_ugrid |
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445 | ! |
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446 | !-- Compute Obukhov length |
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447 | IF ( .NOT. neutral ) CALL calc_ol |
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448 | ! |
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449 | !-- Compute respective friction velocity on staggered grid |
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450 | CALL calc_us |
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451 | ! |
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452 | !-- Compute scaling parameters |
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453 | CALL calc_scaling_parameters |
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454 | ! |
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455 | !-- Compute respective surface fluxes for momentum and TKE |
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456 | CALL calc_surface_fluxes |
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457 | ENDIF |
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458 | ENDDO |
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459 | ! |
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460 | !-- No ts is required, so scaling parameters and Obukhov length do not need to be computed. |
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461 | ELSE |
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462 | DO l = 0, 1 |
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463 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
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464 | surf => surf_lsm_v(l) |
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465 | ! |
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466 | !-- Compute surface-parallel velocity |
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467 | CALL calc_uvw_abs_v_ugrid |
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468 | ! |
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469 | !-- Compute respective friction velocity on staggered grid |
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470 | CALL calc_us |
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471 | ! |
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472 | !-- Compute respective surface fluxes for momentum and TKE |
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473 | CALL calc_surface_fluxes |
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474 | ENDIF |
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475 | ENDDO |
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476 | ENDIF |
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477 | ! |
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478 | !-- For urban-type surfaces |
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479 | DO l = 0, 1 |
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480 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
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481 | surf => surf_usm_v(l) |
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482 | ! |
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483 | !-- Compute surface-parallel velocity |
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484 | CALL calc_uvw_abs_v_ugrid |
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485 | ! |
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486 | !-- Compute respective friction velocity on staggered grid |
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487 | CALL calc_us |
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488 | ! |
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489 | !-- Compute respective surface fluxes for momentum and TKE |
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490 | CALL calc_surface_fluxes |
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491 | ! |
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492 | !-- Calculate 10cm temperature, required in indoor model |
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493 | IF ( indoor_model ) CALL calc_pt_near_surface ( '10cm' ) |
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494 | ENDIF |
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495 | ENDDO |
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496 | ! |
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497 | !-- Calculate horizontal momentum fluxes at east- and west-facing surfaces (vsus). |
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498 | !-- For default-type surfaces |
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499 | DO l = 2, 3 |
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500 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
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501 | surf => surf_def_v(l) |
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502 | ! |
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503 | !-- Compute surface-parallel velocity |
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504 | CALL calc_uvw_abs_v_vgrid |
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505 | ! |
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506 | !-- Compute respective friction velocity on staggered grid |
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507 | CALL calc_us |
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508 | ! |
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509 | !-- Compute respective surface fluxes for momentum and TKE |
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510 | CALL calc_surface_fluxes |
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511 | ENDIF |
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512 | ENDDO |
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513 | ! |
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514 | !-- For natural-type surfaces. Please note, even though stability is not considered for the |
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515 | !-- calculation of momentum fluxes at vertical surfaces, scaling parameters and Obukov length are |
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516 | !-- calculated nevertheless in this case. This is due to the requirement of ts in parameterization |
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517 | !-- of heat flux in land-surface model in case that aero_resist_kray is not true. |
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518 | IF ( .NOT. aero_resist_kray ) THEN |
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519 | DO l = 2, 3 |
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520 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
521 | surf => surf_lsm_v(l) |
---|
522 | ! |
---|
523 | !-- Compute surface-parallel velocity |
---|
524 | CALL calc_uvw_abs_v_vgrid |
---|
525 | ! |
---|
526 | !-- Compute Obukhov length |
---|
527 | IF ( .NOT. neutral ) CALL calc_ol |
---|
528 | ! |
---|
529 | !-- Compute respective friction velocity on staggered grid |
---|
530 | CALL calc_us |
---|
531 | ! |
---|
532 | !-- Compute scaling parameters |
---|
533 | CALL calc_scaling_parameters |
---|
534 | ! |
---|
535 | !-- Compute respective surface fluxes for momentum and TKE |
---|
536 | CALL calc_surface_fluxes |
---|
537 | ENDIF |
---|
538 | ENDDO |
---|
539 | ELSE |
---|
540 | DO l = 2, 3 |
---|
541 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
542 | surf => surf_lsm_v(l) |
---|
543 | ! |
---|
544 | !-- Compute surface-parallel velocity |
---|
545 | CALL calc_uvw_abs_v_vgrid |
---|
546 | ! |
---|
547 | !-- Compute respective friction velocity on staggered grid |
---|
548 | CALL calc_us |
---|
549 | ! |
---|
550 | !-- Compute respective surface fluxes for momentum and TKE |
---|
551 | CALL calc_surface_fluxes |
---|
552 | ENDIF |
---|
553 | ENDDO |
---|
554 | ENDIF |
---|
555 | ! |
---|
556 | !-- For urban-type surfaces |
---|
557 | DO l = 2, 3 |
---|
558 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
559 | surf => surf_usm_v(l) |
---|
560 | ! |
---|
561 | !-- Compute surface-parallel velocity |
---|
562 | CALL calc_uvw_abs_v_vgrid |
---|
563 | ! |
---|
564 | !-- Compute respective friction velocity on staggered grid |
---|
565 | CALL calc_us |
---|
566 | ! |
---|
567 | !-- Compute respective surface fluxes for momentum and TKE |
---|
568 | CALL calc_surface_fluxes |
---|
569 | ! |
---|
570 | !-- Calculate 10cm temperature, required in indoor model |
---|
571 | IF ( indoor_model ) CALL calc_pt_near_surface ( '10cm' ) |
---|
572 | ENDIF |
---|
573 | ENDDO |
---|
574 | mom_uv = .FALSE. |
---|
575 | ! |
---|
576 | !-- Calculate horizontal momentum fluxes of w (wsus and wsvs) at vertial surfaces. |
---|
577 | mom_w = .TRUE. |
---|
578 | ! |
---|
579 | !-- Default-type surfaces |
---|
580 | DO l = 0, 3 |
---|
581 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
582 | surf => surf_def_v(l) |
---|
583 | CALL calc_uvw_abs_v_wgrid |
---|
584 | CALL calc_us |
---|
585 | CALL calc_surface_fluxes |
---|
586 | ENDIF |
---|
587 | ENDDO |
---|
588 | ! |
---|
589 | !-- Natural-type surfaces |
---|
590 | DO l = 0, 3 |
---|
591 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
592 | surf => surf_lsm_v(l) |
---|
593 | CALL calc_uvw_abs_v_wgrid |
---|
594 | CALL calc_us |
---|
595 | CALL calc_surface_fluxes |
---|
596 | ENDIF |
---|
597 | ENDDO |
---|
598 | ! |
---|
599 | !-- Urban-type surfaces |
---|
600 | DO l = 0, 3 |
---|
601 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
602 | surf => surf_usm_v(l) |
---|
603 | CALL calc_uvw_abs_v_wgrid |
---|
604 | CALL calc_us |
---|
605 | CALL calc_surface_fluxes |
---|
606 | ENDIF |
---|
607 | ENDDO |
---|
608 | mom_w = .FALSE. |
---|
609 | ! |
---|
610 | !-- Calculate momentum fluxes usvs, vsus, wsus and wsvs at vertical surfaces for TKE production. |
---|
611 | !-- Note, here, momentum fluxes are defined at grid center and are not staggered as before. |
---|
612 | mom_tke = .TRUE. |
---|
613 | ! |
---|
614 | !-- Default-type surfaces |
---|
615 | DO l = 0, 3 |
---|
616 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
617 | surf => surf_def_v(l) |
---|
618 | CALL calc_uvw_abs_v_sgrid |
---|
619 | CALL calc_us |
---|
620 | CALL calc_surface_fluxes |
---|
621 | ENDIF |
---|
622 | ENDDO |
---|
623 | ! |
---|
624 | !-- Natural-type surfaces |
---|
625 | DO l = 0, 3 |
---|
626 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
627 | surf => surf_lsm_v(l) |
---|
628 | CALL calc_uvw_abs_v_sgrid |
---|
629 | CALL calc_us |
---|
630 | CALL calc_surface_fluxes |
---|
631 | ENDIF |
---|
632 | ENDDO |
---|
633 | ! |
---|
634 | !-- Urban-type surfaces |
---|
635 | DO l = 0, 3 |
---|
636 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
637 | surf => surf_usm_v(l) |
---|
638 | CALL calc_uvw_abs_v_sgrid |
---|
639 | CALL calc_us |
---|
640 | CALL calc_surface_fluxes |
---|
641 | ENDIF |
---|
642 | ENDDO |
---|
643 | mom_tke = .FALSE. |
---|
644 | |
---|
645 | IF ( debug_output_timestep ) CALL debug_message( 'surface_layer_fluxes', 'end' ) |
---|
646 | |
---|
647 | END SUBROUTINE surface_layer_fluxes |
---|
648 | |
---|
649 | |
---|
650 | !--------------------------------------------------------------------------------------------------! |
---|
651 | ! Description: |
---|
652 | ! ------------ |
---|
653 | !> Initializing actions for the surface layer routine. |
---|
654 | !--------------------------------------------------------------------------------------------------! |
---|
655 | SUBROUTINE init_surface_layer_fluxes |
---|
656 | |
---|
657 | IMPLICIT NONE |
---|
658 | |
---|
659 | INTEGER(iwp) :: l !< running index for vertical surface orientation |
---|
660 | |
---|
661 | CALL location_message( 'initializing surface layer', 'start' ) |
---|
662 | |
---|
663 | ! |
---|
664 | !-- In case of runs with neutral statification, set Obukhov length to a large value |
---|
665 | IF ( neutral ) THEN |
---|
666 | IF ( surf_def_h(0)%ns >= 1 ) surf_def_h(0)%ol = 1.0E10_wp |
---|
667 | IF ( surf_lsm_h%ns >= 1 ) surf_lsm_h%ol = 1.0E10_wp |
---|
668 | IF ( surf_usm_h%ns >= 1 ) surf_usm_h%ol = 1.0E10_wp |
---|
669 | |
---|
670 | DO l = 0, 3 |
---|
671 | IF ( surf_def_v(l)%ns >= 1 .AND. & |
---|
672 | ALLOCATED( surf_def_v(l)%ol ) ) surf_def_v(l)%ol = 1.0E10_wp |
---|
673 | IF ( surf_lsm_v(l)%ns >= 1 .AND. & |
---|
674 | ALLOCATED( surf_lsm_v(l)%ol ) ) surf_lsm_v(l)%ol = 1.0E10_wp |
---|
675 | IF ( surf_usm_v(l)%ns >= 1 .AND. & |
---|
676 | ALLOCATED( surf_usm_v(l)%ol ) ) surf_usm_v(l)%ol = 1.0E10_wp |
---|
677 | ENDDO |
---|
678 | |
---|
679 | ENDIF |
---|
680 | |
---|
681 | CALL location_message( 'initializing surface layer', 'finished' ) |
---|
682 | |
---|
683 | END SUBROUTINE init_surface_layer_fluxes |
---|
684 | |
---|
685 | |
---|
686 | !--------------------------------------------------------------------------------------------------! |
---|
687 | ! Description: |
---|
688 | ! ------------ |
---|
689 | !> Compute ln(z/z0). |
---|
690 | !--------------------------------------------------------------------------------------------------! |
---|
691 | SUBROUTINE calc_ln |
---|
692 | |
---|
693 | INTEGER(iwp) :: m !< running index surface elements |
---|
694 | |
---|
695 | ! |
---|
696 | !-- Note, ln(z/z0h) and ln(z/z0q) is also calculated even if neural simulations are applied. |
---|
697 | !-- This is because the scalar coefficients are also used for other scalars such as passive scalars, |
---|
698 | !-- chemistry and aerosols. |
---|
699 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
700 | !$ACC PARALLEL LOOP PRIVATE(z_mo) & |
---|
701 | !$ACC PRESENT(surf) |
---|
702 | DO m = 1, surf%ns |
---|
703 | z_mo = surf%z_mo(m) |
---|
704 | surf%ln_z_z0(m) = LOG( z_mo / surf%z0(m) ) |
---|
705 | surf%ln_z_z0h(m) = LOG( z_mo / surf%z0h(m) ) |
---|
706 | surf%ln_z_z0q(m) = LOG( z_mo / surf%z0q(m) ) |
---|
707 | ENDDO |
---|
708 | |
---|
709 | END SUBROUTINE calc_ln |
---|
710 | |
---|
711 | !--------------------------------------------------------------------------------------------------! |
---|
712 | ! Description: |
---|
713 | ! ------------ |
---|
714 | !> Compute the absolute value of the horizontal velocity (relative to the surface) for horizontal |
---|
715 | !> surface elements. This is required by all methods. |
---|
716 | !--------------------------------------------------------------------------------------------------! |
---|
717 | SUBROUTINE calc_uvw_abs |
---|
718 | |
---|
719 | IMPLICIT NONE |
---|
720 | |
---|
721 | INTEGER(iwp) :: i !< running index x direction |
---|
722 | INTEGER(iwp) :: ibit !< flag to mask computation of relative velocity in case of downward-facing surfaces |
---|
723 | INTEGER(iwp) :: j !< running index y direction |
---|
724 | INTEGER(iwp) :: k !< running index z direction |
---|
725 | INTEGER(iwp) :: m !< running index surface elements |
---|
726 | |
---|
727 | REAL(wp) :: w_lfc !< local free convection velocity scale |
---|
728 | ! |
---|
729 | !-- ibit is 1 for upward-facing surfaces, zero for downward-facing surfaces. |
---|
730 | ibit = MERGE( 1, 0, .NOT. downward ) |
---|
731 | |
---|
732 | IF ( use_free_convection_scaling ) THEN |
---|
733 | !$OMP PARALLEL DO PRIVATE(i, j, k, w_lfc) |
---|
734 | !$ACC PARALLEL LOOP PRIVATE(i, j, k, w_lfc) & |
---|
735 | !$ACC PRESENT(surf, u, v) |
---|
736 | DO m = 1, surf%ns |
---|
737 | i = surf%i(m) |
---|
738 | j = surf%j(m) |
---|
739 | k = surf%k(m) |
---|
740 | |
---|
741 | ! |
---|
742 | !-- Calculate free convection velocity scale w_lfc is use_free_convection_scaling = .T.. This |
---|
743 | !-- will maintain a horizontal velocity even for very weak wind convective conditions. SIGN is |
---|
744 | !-- used to set w_lfc to zero under stable conditions. |
---|
745 | w_lfc = ABS(g / surf%pt1(m) * surf%z_mo(m) * surf%shf(m)) |
---|
746 | w_lfc = ( 0.5_wp * ( w_lfc + SIGN(w_lfc,surf%shf(m)) ) )**(0.33333_wp) |
---|
747 | ! |
---|
748 | !-- Compute the absolute value of the horizontal velocity. (relative to the surface in case the |
---|
749 | !-- lower surface is the ocean). Please note, in new surface modelling concept the index values |
---|
750 | !-- changed, i.e. the reference grid point is not the surface-grid point itself but the first |
---|
751 | !-- grid point outside of the topography. Note, in case of coupled ocean-atmosphere simulations |
---|
752 | !-- relative velocity with respect to the ocean surface is used, hence, (k-1,j,i) values are used |
---|
753 | !-- to calculate the absolute velocity. However, this does not apply for downward-facing walls. |
---|
754 | !-- To mask this, use ibit, which checks for upward/downward-facing surfaces. |
---|
755 | surf%uvw_abs(m) = SQRT( ( 0.5_wp * ( u(k,j,i) + u(k,j,i+1) - ( u(k-1,j,i) + u(k-1,j,i+1) & |
---|
756 | ) * ibit ) & |
---|
757 | )**2 & |
---|
758 | + ( 0.5_wp * ( v(k,j,i) + v(k,j+1,i) - ( v(k-1,j,i) + v(k-1,j+1,i) & |
---|
759 | ) * ibit ) & |
---|
760 | )**2 + w_lfc**2 ) |
---|
761 | ENDDO |
---|
762 | ELSE |
---|
763 | !$OMP PARALLEL DO PRIVATE(i, j, k) |
---|
764 | !$ACC PARALLEL LOOP PRIVATE(i, j, k) & |
---|
765 | !$ACC PRESENT(surf, u, v) |
---|
766 | DO m = 1, surf%ns |
---|
767 | i = surf%i(m) |
---|
768 | j = surf%j(m) |
---|
769 | k = surf%k(m) |
---|
770 | ! |
---|
771 | !-- Compute the absolute value of the horizontal velocity. (relative to the surface in case the |
---|
772 | !-- lower surface is the ocean). Please note, in new surface modelling concept the index values |
---|
773 | !-- changed, i.e. the reference grid point is not the surface-grid point itself but the first |
---|
774 | !-- grid point outside of the topography. Note, in case of coupled ocean-atmosphere simulations |
---|
775 | !-- relative velocity with respect to the ocean surface is used, hence, (k-1,j,i) values are used |
---|
776 | !-- to calculate the absolute velocity. However, this does not apply for downward-facing walls. |
---|
777 | !-- To mask this, use ibit, which checks for upward/downward-facing surfaces. |
---|
778 | surf%uvw_abs(m) = SQRT( ( 0.5_wp * ( u(k,j,i) + u(k,j,i+1) - ( u(k-1,j,i) + u(k-1,j,i+1) & |
---|
779 | ) * ibit ) & |
---|
780 | )**2 & |
---|
781 | + ( 0.5_wp * ( v(k,j,i) + v(k,j+1,i) - ( v(k-1,j,i) + v(k-1,j+1,i) & |
---|
782 | ) * ibit ) & |
---|
783 | )**2 ) |
---|
784 | ENDDO |
---|
785 | ENDIF |
---|
786 | |
---|
787 | END SUBROUTINE calc_uvw_abs |
---|
788 | |
---|
789 | |
---|
790 | !--------------------------------------------------------------------------------------------------! |
---|
791 | ! Description: |
---|
792 | ! ------------ |
---|
793 | !> Compute the absolute value of the horizontal velocity (relative to the surface) for horizontal |
---|
794 | !> surface elements. This is required by all methods. |
---|
795 | !--------------------------------------------------------------------------------------------------! |
---|
796 | SUBROUTINE calc_uvw_abs_v_ugrid |
---|
797 | |
---|
798 | IMPLICIT NONE |
---|
799 | |
---|
800 | INTEGER(iwp) :: i !< running index x direction |
---|
801 | INTEGER(iwp) :: j !< running index y direction |
---|
802 | INTEGER(iwp) :: k !< running index z direction |
---|
803 | INTEGER(iwp) :: m !< running index surface elements |
---|
804 | |
---|
805 | REAL(wp) :: u_i !< u-component on xu-grid |
---|
806 | REAL(wp) :: w_i !< w-component on xu-grid |
---|
807 | |
---|
808 | |
---|
809 | DO m = 1, surf%ns |
---|
810 | i = surf%i(m) |
---|
811 | j = surf%j(m) |
---|
812 | k = surf%k(m) |
---|
813 | ! |
---|
814 | !-- Compute the absolute value of the surface parallel velocity on u-grid. |
---|
815 | u_i = u(k,j,i) |
---|
816 | w_i = 0.25_wp * ( w(k-1,j,i-1) + w(k-1,j,i) + w(k,j,i-1) + w(k,j,i) ) |
---|
817 | |
---|
818 | surf%uvw_abs(m) = SQRT( u_i**2 + w_i**2 ) |
---|
819 | ENDDO |
---|
820 | |
---|
821 | END SUBROUTINE calc_uvw_abs_v_ugrid |
---|
822 | |
---|
823 | !--------------------------------------------------------------------------------------------------! |
---|
824 | ! Description: |
---|
825 | ! ------------ |
---|
826 | !> Compute the absolute value of the horizontal velocity (relative to the surface) for horizontal |
---|
827 | !> surface elements. This is required by all methods. |
---|
828 | !--------------------------------------------------------------------------------------------------! |
---|
829 | SUBROUTINE calc_uvw_abs_v_vgrid |
---|
830 | |
---|
831 | IMPLICIT NONE |
---|
832 | |
---|
833 | INTEGER(iwp) :: i !< running index x direction |
---|
834 | INTEGER(iwp) :: j !< running index y direction |
---|
835 | INTEGER(iwp) :: k !< running index z direction |
---|
836 | INTEGER(iwp) :: m !< running index surface elements |
---|
837 | |
---|
838 | REAL(wp) :: v_i !< v-component on yv-grid |
---|
839 | REAL(wp) :: w_i !< w-component on yv-grid |
---|
840 | |
---|
841 | |
---|
842 | DO m = 1, surf%ns |
---|
843 | i = surf%i(m) |
---|
844 | j = surf%j(m) |
---|
845 | k = surf%k(m) |
---|
846 | |
---|
847 | v_i = u(k,j,i) |
---|
848 | w_i = 0.25_wp * ( w(k-1,j-1,i) + w(k-1,j,i) + w(k,j-1,i) + w(k,j,i) ) |
---|
849 | |
---|
850 | surf%uvw_abs(m) = SQRT( v_i**2 + w_i**2 ) |
---|
851 | ENDDO |
---|
852 | |
---|
853 | END SUBROUTINE calc_uvw_abs_v_vgrid |
---|
854 | |
---|
855 | !--------------------------------------------------------------------------------------------------! |
---|
856 | ! Description: |
---|
857 | ! ------------ |
---|
858 | !> Compute the absolute value of the horizontal velocity (relative to the surface) for horizontal |
---|
859 | !> surface elements. This is required by all methods. |
---|
860 | !--------------------------------------------------------------------------------------------------! |
---|
861 | SUBROUTINE calc_uvw_abs_v_wgrid |
---|
862 | |
---|
863 | IMPLICIT NONE |
---|
864 | |
---|
865 | INTEGER(iwp) :: i !< running index x direction |
---|
866 | INTEGER(iwp) :: j !< running index y direction |
---|
867 | INTEGER(iwp) :: k !< running index z direction |
---|
868 | INTEGER(iwp) :: m !< running index surface elements |
---|
869 | |
---|
870 | REAL(wp) :: u_i !< u-component on x-zw-grid |
---|
871 | REAL(wp) :: v_i !< v-component on y-zw-grid |
---|
872 | REAL(wp) :: w_i !< w-component on zw-grid |
---|
873 | ! |
---|
874 | !-- North- (l=0) and south-facing (l=1) surfaces |
---|
875 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
876 | DO m = 1, surf%ns |
---|
877 | i = surf%i(m) |
---|
878 | j = surf%j(m) |
---|
879 | k = surf%k(m) |
---|
880 | |
---|
881 | u_i = 0.25_wp * ( u(k+1,j,i+1) + u(k+1,j,i) + u(k,j,i+1) + u(k,j,i) ) |
---|
882 | v_i = 0.0_wp |
---|
883 | w_i = w(k,j,i) |
---|
884 | |
---|
885 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
886 | ENDDO |
---|
887 | ! |
---|
888 | !-- East- (l=2) and west-facing (l=3) surfaces |
---|
889 | ELSE |
---|
890 | DO m = 1, surf%ns |
---|
891 | i = surf%i(m) |
---|
892 | j = surf%j(m) |
---|
893 | k = surf%k(m) |
---|
894 | |
---|
895 | u_i = 0.0_wp |
---|
896 | v_i = 0.25_wp * ( v(k+1,j+1,i) + v(k+1,j,i) + v(k,j+1,i) + v(k,j,i) ) |
---|
897 | w_i = w(k,j,i) |
---|
898 | |
---|
899 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
900 | ENDDO |
---|
901 | ENDIF |
---|
902 | |
---|
903 | END SUBROUTINE calc_uvw_abs_v_wgrid |
---|
904 | |
---|
905 | !--------------------------------------------------------------------------------------------------! |
---|
906 | ! Description: |
---|
907 | ! ------------ |
---|
908 | !> Compute the absolute value of the horizontal velocity (relative to the surface) for horizontal |
---|
909 | !> surface elements. This is required by all methods. |
---|
910 | !--------------------------------------------------------------------------------------------------! |
---|
911 | SUBROUTINE calc_uvw_abs_v_sgrid |
---|
912 | |
---|
913 | IMPLICIT NONE |
---|
914 | |
---|
915 | INTEGER(iwp) :: i !< running index x direction |
---|
916 | INTEGER(iwp) :: j !< running index y direction |
---|
917 | INTEGER(iwp) :: k !< running index z direction |
---|
918 | INTEGER(iwp) :: m !< running index surface elements |
---|
919 | |
---|
920 | REAL(wp) :: u_i !< u-component on scalar grid |
---|
921 | REAL(wp) :: v_i !< v-component on scalar grid |
---|
922 | REAL(wp) :: w_i !< w-component on scalar grid |
---|
923 | |
---|
924 | ! |
---|
925 | !-- North- (l=0) and south-facing (l=1) walls |
---|
926 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
927 | DO m = 1, surf%ns |
---|
928 | i = surf%i(m) |
---|
929 | j = surf%j(m) |
---|
930 | k = surf%k(m) |
---|
931 | |
---|
932 | u_i = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) |
---|
933 | v_i = 0.0_wp |
---|
934 | w_i = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
935 | |
---|
936 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
937 | ENDDO |
---|
938 | ! |
---|
939 | !-- East- (l=2) and west-facing (l=3) walls |
---|
940 | ELSE |
---|
941 | DO m = 1, surf%ns |
---|
942 | i = surf%i(m) |
---|
943 | j = surf%j(m) |
---|
944 | k = surf%k(m) |
---|
945 | |
---|
946 | u_i = 0.0_wp |
---|
947 | v_i = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) |
---|
948 | w_i = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
949 | |
---|
950 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
951 | ENDDO |
---|
952 | ENDIF |
---|
953 | |
---|
954 | END SUBROUTINE calc_uvw_abs_v_sgrid |
---|
955 | |
---|
956 | |
---|
957 | !--------------------------------------------------------------------------------------------------! |
---|
958 | ! Description: |
---|
959 | ! ------------ |
---|
960 | !> Calculate the Obukhov length (L) and Richardson flux number (z/L) |
---|
961 | !--------------------------------------------------------------------------------------------------! |
---|
962 | SUBROUTINE calc_ol |
---|
963 | |
---|
964 | IMPLICIT NONE |
---|
965 | |
---|
966 | INTEGER(iwp) :: iter !< Newton iteration step |
---|
967 | INTEGER(iwp) :: m !< loop variable over all horizontal wall elements |
---|
968 | |
---|
969 | LOGICAL, DIMENSION(surf%ns) :: convergence_reached !< convergence switch for vectorization |
---|
970 | !$ACC DECLARE CREATE( convergence_reached ) |
---|
971 | |
---|
972 | REAL(wp) :: f !< Function for Newton iteration: f = Ri - [...]/[...]^2 = 0 |
---|
973 | REAL(wp) :: f_d_ol !< Derivative of f |
---|
974 | REAL(wp) :: ol_l !< Lower bound of L for Newton iteration |
---|
975 | REAL(wp) :: ol_m !< Previous value of L for Newton iteration |
---|
976 | REAL(wp) :: ol_old !< Previous time step value of L |
---|
977 | REAL(wp) :: ol_u !< Upper bound of L for Newton iteration |
---|
978 | |
---|
979 | REAL(wp), DIMENSION(surf%ns) :: ol_old_vec !< temporary array required for vectorization |
---|
980 | REAL(wp), DIMENSION(surf%ns) :: z_mo_vec !< temporary array required for vectorization |
---|
981 | !$ACC DECLARE CREATE( ol_old_vec, z_mo_vec ) |
---|
982 | |
---|
983 | ! |
---|
984 | !-- Evaluate bulk Richardson number (calculation depends on definition based on setting of boundary |
---|
985 | !-- conditions) |
---|
986 | IF ( ibc_pt_b /= 1 ) THEN |
---|
987 | IF ( humidity ) THEN |
---|
988 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
989 | DO m = 1, surf%ns |
---|
990 | z_mo = surf%z_mo(m) |
---|
991 | surf%rib(m) = g * z_mo * ( surf%vpt1(m) - surf%vpt_surface(m) ) / & |
---|
992 | ( surf%uvw_abs(m)**2 * surf%vpt1(m) + 1.0E-20_wp ) |
---|
993 | ENDDO |
---|
994 | ELSE |
---|
995 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
996 | DO m = 1, surf%ns |
---|
997 | z_mo = surf%z_mo(m) |
---|
998 | surf%rib(m) = g * z_mo * ( surf%pt1(m) - surf%pt_surface(m) ) / & |
---|
999 | ( surf%uvw_abs(m)**2 * surf%pt1(m) + 1.0E-20_wp ) |
---|
1000 | ENDDO |
---|
1001 | ENDIF |
---|
1002 | ELSE |
---|
1003 | IF ( humidity ) THEN |
---|
1004 | !$OMP PARALLEL DO PRIVATE( k, z_mo ) |
---|
1005 | DO m = 1, surf%ns |
---|
1006 | k = surf%k(m) |
---|
1007 | z_mo = surf%z_mo(m) |
---|
1008 | surf%rib(m) = - g * z_mo * ( ( 1.0_wp + 0.61_wp * surf%qv1(m) ) * & |
---|
1009 | surf%shf(m) + 0.61_wp * surf%pt1(m) * surf%qsws(m) ) * & |
---|
1010 | drho_air_zw(k-1) / ( surf%uvw_abs(m)**3 * surf%vpt1(m) * kappa**2 & |
---|
1011 | + 1.0E-20_wp ) |
---|
1012 | ENDDO |
---|
1013 | ELSE |
---|
1014 | !$OMP PARALLEL DO PRIVATE( k, z_mo ) |
---|
1015 | !$ACC PARALLEL LOOP PRIVATE(k, z_mo) & |
---|
1016 | !$ACC PRESENT(surf, drho_air_zw) |
---|
1017 | DO m = 1, surf%ns |
---|
1018 | k = surf%k(m) |
---|
1019 | z_mo = surf%z_mo(m) |
---|
1020 | surf%rib(m) = - g * z_mo * surf%shf(m) * drho_air_zw(k-1) / & |
---|
1021 | ( surf%uvw_abs(m)**3 * surf%pt1(m) * kappa**2 + 1.0E-20_wp ) |
---|
1022 | ENDDO |
---|
1023 | ENDIF |
---|
1024 | ENDIF |
---|
1025 | |
---|
1026 | IF ( loop_optimization == 'cache' ) THEN |
---|
1027 | ! |
---|
1028 | !-- Calculate the Obukhov length using Newton iteration |
---|
1029 | !$OMP PARALLEL DO PRIVATE(i, j, z_mo) & |
---|
1030 | !$OMP PRIVATE(ol_old, ol_m, ol_l, ol_u, f, f_d_ol) |
---|
1031 | !$ACC PARALLEL LOOP PRIVATE(i, j, z_mo) & |
---|
1032 | !$ACC PRIVATE(ol_old, ol_m, ol_l, ol_u, f, f_d_ol) & |
---|
1033 | !$ACC PRESENT(surf) |
---|
1034 | DO m = 1, surf%ns |
---|
1035 | i = surf%i(m) |
---|
1036 | j = surf%j(m) |
---|
1037 | |
---|
1038 | z_mo = surf%z_mo(m) |
---|
1039 | |
---|
1040 | ! |
---|
1041 | !-- Store current value in case the Newton iteration fails |
---|
1042 | ol_old = surf%ol(m) |
---|
1043 | |
---|
1044 | ! |
---|
1045 | !-- Ensure that the bulk Richardson number and the Obukhov length have the same sign |
---|
1046 | IF ( surf%rib(m) * surf%ol(m) < 0.0_wp .OR. ABS( surf%ol(m) ) == ol_max ) THEN |
---|
1047 | IF ( surf%rib(m) > 1.0_wp ) surf%ol(m) = 0.01_wp |
---|
1048 | IF ( surf%rib(m) < 0.0_wp ) surf%ol(m) = -0.01_wp |
---|
1049 | ENDIF |
---|
1050 | ! |
---|
1051 | !-- Iteration to find Obukhov length |
---|
1052 | iter = 0 |
---|
1053 | DO |
---|
1054 | iter = iter + 1 |
---|
1055 | ! |
---|
1056 | !-- In case of divergence, use the value of the previous time step |
---|
1057 | IF ( iter > 1000 ) THEN |
---|
1058 | surf%ol(m) = ol_old |
---|
1059 | EXIT |
---|
1060 | ENDIF |
---|
1061 | |
---|
1062 | ol_m = surf%ol(m) |
---|
1063 | ol_l = ol_m - 0.001_wp * ol_m |
---|
1064 | ol_u = ol_m + 0.001_wp * ol_m |
---|
1065 | |
---|
1066 | |
---|
1067 | IF ( ibc_pt_b /= 1 ) THEN |
---|
1068 | ! |
---|
1069 | !-- Calculate f = Ri - [...]/[...]^2 = 0 |
---|
1070 | f = surf%rib(m) - ( z_mo / ol_m ) * ( surf%ln_z_z0h(m) & |
---|
1071 | - psi_h( z_mo / ol_m ) & |
---|
1072 | + psi_h( surf%z0h(m) / ol_m ) ) / & |
---|
1073 | ( surf%ln_z_z0(m) - psi_m( z_mo / ol_m ) & |
---|
1074 | + psi_m( surf%z0(m) / ol_m ) )**2 |
---|
1075 | |
---|
1076 | ! |
---|
1077 | !-- Calculate df/dL |
---|
1078 | f_d_ol = ( - ( z_mo / ol_u ) * ( surf%ln_z_z0h(m) & |
---|
1079 | - psi_h( z_mo / ol_u ) & |
---|
1080 | + psi_h( surf%z0h(m) / ol_u ) ) / & |
---|
1081 | ( surf%ln_z_z0(m) - psi_m( z_mo / ol_u ) & |
---|
1082 | + psi_m( surf%z0(m) / ol_u ) )**2 & |
---|
1083 | + ( z_mo / ol_l ) * ( surf%ln_z_z0h(m) - psi_h( z_mo / ol_l ) & |
---|
1084 | + psi_h( surf%z0h(m) / ol_l ) ) /& |
---|
1085 | ( surf%ln_z_z0(m) - psi_m( z_mo / ol_l ) & |
---|
1086 | + psi_m( surf%z0(m) / ol_l ) )**2 ) / ( ol_u - ol_l ) |
---|
1087 | ELSE |
---|
1088 | ! |
---|
1089 | !-- Calculate f = Ri - 1 /[...]^3 = 0 |
---|
1090 | f = surf%rib(m) - ( z_mo / ol_m ) / & |
---|
1091 | ( surf%ln_z_z0(m) - psi_m( z_mo / ol_m ) + psi_m( surf%z0(m) / ol_m ) )**3 |
---|
1092 | |
---|
1093 | ! |
---|
1094 | !-- Calculate df/dL |
---|
1095 | f_d_ol = ( - ( z_mo / ol_u ) / ( surf%ln_z_z0(m) & |
---|
1096 | - psi_m( z_mo / ol_u ) & |
---|
1097 | + psi_m( surf%z0(m) / ol_u ) & |
---|
1098 | )**3 & |
---|
1099 | + ( z_mo / ol_l ) / ( surf%ln_z_z0(m) & |
---|
1100 | - psi_m( z_mo / ol_l ) & |
---|
1101 | + psi_m( surf%z0(m) / ol_l ) & |
---|
1102 | )**3 & |
---|
1103 | ) / ( ol_u - ol_l ) |
---|
1104 | ENDIF |
---|
1105 | ! |
---|
1106 | !-- Calculate new L |
---|
1107 | surf%ol(m) = ol_m - f / f_d_ol |
---|
1108 | |
---|
1109 | ! |
---|
1110 | !-- Ensure that the bulk Richardson number and the Obukhov length have the same sign and |
---|
1111 | !-- ensure convergence. |
---|
1112 | IF ( surf%ol(m) * ol_m < 0.0_wp ) surf%ol(m) = ol_m * 0.5_wp |
---|
1113 | ! |
---|
1114 | !-- If unrealistic value occurs, set L to the maximum value that is allowed |
---|
1115 | IF ( ABS( surf%ol(m) ) > ol_max ) THEN |
---|
1116 | surf%ol(m) = ol_max |
---|
1117 | EXIT |
---|
1118 | ENDIF |
---|
1119 | ! |
---|
1120 | !-- Assure that Obukhov length does not become zero. If the limit is reached, exit the loop. |
---|
1121 | IF ( ABS( surf%ol(m) ) < 1E-5_wp ) THEN |
---|
1122 | surf%ol(m) = SIGN( 1E-5_wp, surf%ol(m) ) |
---|
1123 | EXIT |
---|
1124 | ENDIF |
---|
1125 | ! |
---|
1126 | !-- Check for convergence |
---|
1127 | IF ( ABS( ( surf%ol(m) - ol_m ) / surf%ol(m) ) < 1.0E-4_wp ) EXIT |
---|
1128 | ENDDO |
---|
1129 | ENDDO |
---|
1130 | |
---|
1131 | ! |
---|
1132 | !-- Vector Version |
---|
1133 | ELSE |
---|
1134 | ! |
---|
1135 | !-- Calculate the Obukhov length using Newton iteration |
---|
1136 | !-- First set arrays required for vectorization |
---|
1137 | !$ACC PARALLEL LOOP & |
---|
1138 | !$ACC PRESENT(surf) |
---|
1139 | DO m = 1, surf%ns |
---|
1140 | z_mo_vec(m) = surf%z_mo(m) |
---|
1141 | ! |
---|
1142 | !-- Store current value in case the Newton iteration fails |
---|
1143 | ol_old_vec(m) = surf%ol(m) |
---|
1144 | ! |
---|
1145 | !-- Ensure that the bulk Richardson number and the Obukhov length have the same sign |
---|
1146 | IF ( surf%rib(m) * surf%ol(m) < 0.0_wp .OR. ABS( surf%ol(m) ) == ol_max ) THEN |
---|
1147 | IF ( surf%rib(m) > 1.0_wp ) surf%ol(m) = 0.01_wp |
---|
1148 | IF ( surf%rib(m) < 0.0_wp ) surf%ol(m) = -0.01_wp |
---|
1149 | ENDIF |
---|
1150 | ! |
---|
1151 | !-- Initialize convergence flag |
---|
1152 | convergence_reached(m) = .FALSE. |
---|
1153 | ENDDO |
---|
1154 | |
---|
1155 | ! |
---|
1156 | !-- Iteration to find Obukhov length |
---|
1157 | iter = 0 |
---|
1158 | DO |
---|
1159 | iter = iter + 1 |
---|
1160 | ! |
---|
1161 | !-- In case of divergence, use the value(s) of the previous time step |
---|
1162 | IF ( iter > 1000 ) THEN |
---|
1163 | !$ACC PARALLEL LOOP & |
---|
1164 | !$ACC PRESENT(surf) |
---|
1165 | DO m = 1, surf%ns |
---|
1166 | IF ( .NOT. convergence_reached(m) ) surf%ol(m) = ol_old_vec(m) |
---|
1167 | ENDDO |
---|
1168 | EXIT |
---|
1169 | ENDIF |
---|
1170 | |
---|
1171 | !$ACC PARALLEL LOOP PRIVATE(ol_m, ol_l, ol_u, f, f_d_ol) & |
---|
1172 | !$ACC PRESENT(surf) |
---|
1173 | DO m = 1, surf%ns |
---|
1174 | IF ( convergence_reached(m) ) CYCLE |
---|
1175 | |
---|
1176 | ol_m = surf%ol(m) |
---|
1177 | ol_l = ol_m - 0.001_wp * ol_m |
---|
1178 | ol_u = ol_m + 0.001_wp * ol_m |
---|
1179 | |
---|
1180 | |
---|
1181 | IF ( ibc_pt_b /= 1 ) THEN |
---|
1182 | ! |
---|
1183 | !-- Calculate f = Ri - [...]/[...]^2 = 0 |
---|
1184 | f = surf%rib(m) - ( z_mo_vec(m) / ol_m ) * ( surf%ln_z_z0(m) & |
---|
1185 | - psi_h( z_mo_vec(m) / ol_m ) & |
---|
1186 | + psi_h( surf%z0h(m) / ol_m ) & |
---|
1187 | ) / & |
---|
1188 | ( surf%ln_z_z0(m) & |
---|
1189 | - psi_m( z_mo_vec(m) / ol_m ) & |
---|
1190 | + psi_m( surf%z0(m) / ol_m ) & |
---|
1191 | )**2 |
---|
1192 | |
---|
1193 | ! |
---|
1194 | !-- Calculate df/dL |
---|
1195 | f_d_ol = ( - ( z_mo_vec(m) / ol_u ) * ( surf%ln_z_z0h(m) & |
---|
1196 | - psi_h( z_mo_vec(m) / ol_u ) & |
---|
1197 | + psi_h( surf%z0h(m) / ol_u ) & |
---|
1198 | ) / & |
---|
1199 | ( surf%ln_z_z0(m) & |
---|
1200 | - psi_m( z_mo_vec(m) / ol_u ) & |
---|
1201 | + psi_m( surf%z0(m) / ol_u ) & |
---|
1202 | )**2 & |
---|
1203 | + ( z_mo_vec(m) / ol_l ) * ( surf%ln_z_z0h(m) & |
---|
1204 | - psi_h( z_mo_vec(m) / ol_l ) & |
---|
1205 | + psi_h( surf%z0h(m) / ol_l ) & |
---|
1206 | ) / & |
---|
1207 | ( surf%ln_z_z0(m) & |
---|
1208 | - psi_m( z_mo_vec(m) / ol_l ) & |
---|
1209 | + psi_m( surf%z0(m) / ol_l ) & |
---|
1210 | )**2 & |
---|
1211 | ) / ( ol_u - ol_l ) |
---|
1212 | ELSE |
---|
1213 | ! |
---|
1214 | !-- Calculate f = Ri - 1 /[...]^3 = 0 |
---|
1215 | f = surf%rib(m) - ( z_mo_vec(m) / ol_m ) / ( surf%ln_z_z0(m) & |
---|
1216 | - psi_m( z_mo_vec(m) / ol_m ) & |
---|
1217 | + psi_m( surf%z0(m) / ol_m ) & |
---|
1218 | )**3 |
---|
1219 | |
---|
1220 | ! |
---|
1221 | !-- Calculate df/dL |
---|
1222 | f_d_ol = ( - ( z_mo_vec(m) / ol_u ) / ( surf%ln_z_z0(m) & |
---|
1223 | - psi_m( z_mo_vec(m) / ol_u ) & |
---|
1224 | + psi_m( surf%z0(m) / ol_u ) & |
---|
1225 | )**3 & |
---|
1226 | + ( z_mo_vec(m) / ol_l ) / ( surf%ln_z_z0(m) & |
---|
1227 | - psi_m( z_mo_vec(m) / ol_l ) & |
---|
1228 | + psi_m( surf%z0(m) / ol_l ) & |
---|
1229 | )**3 & |
---|
1230 | ) / ( ol_u - ol_l ) |
---|
1231 | ENDIF |
---|
1232 | ! |
---|
1233 | !-- Calculate new L |
---|
1234 | surf%ol(m) = ol_m - f / f_d_ol |
---|
1235 | |
---|
1236 | ! |
---|
1237 | !-- Ensure that the bulk Richardson number and the Obukhov length have the same sign and |
---|
1238 | !-- ensure convergence. |
---|
1239 | IF ( surf%ol(m) * ol_m < 0.0_wp ) surf%ol(m) = ol_m * 0.5_wp |
---|
1240 | |
---|
1241 | ! |
---|
1242 | !-- Check for convergence |
---|
1243 | !-- This check does not modify surf%ol, therefore this is done first |
---|
1244 | IF ( ABS( ( surf%ol(m) - ol_m ) / surf%ol(m) ) < 1.0E-4_wp ) THEN |
---|
1245 | convergence_reached(m) = .TRUE. |
---|
1246 | ENDIF |
---|
1247 | ! |
---|
1248 | !-- If unrealistic value occurs, set L to the maximum allowed value |
---|
1249 | IF ( ABS( surf%ol(m) ) > ol_max ) THEN |
---|
1250 | surf%ol(m) = ol_max |
---|
1251 | convergence_reached(m) = .TRUE. |
---|
1252 | ENDIF |
---|
1253 | ENDDO |
---|
1254 | ! |
---|
1255 | !-- Assure that Obukhov length does not become zero |
---|
1256 | !$ACC PARALLEL LOOP & |
---|
1257 | !$ACC PRESENT(surf) |
---|
1258 | DO m = 1, surf%ns |
---|
1259 | IF ( convergence_reached(m) ) CYCLE |
---|
1260 | IF ( ABS( surf%ol(m) ) < 1E-5_wp ) THEN |
---|
1261 | surf%ol(m) = SIGN( 10E-6_wp, surf%ol(m) ) |
---|
1262 | convergence_reached(m) = .TRUE. |
---|
1263 | ENDIF |
---|
1264 | ENDDO |
---|
1265 | |
---|
1266 | IF ( ALL( convergence_reached ) ) EXIT |
---|
1267 | |
---|
1268 | ENDDO ! End of iteration loop |
---|
1269 | |
---|
1270 | ENDIF ! End of vector branch |
---|
1271 | |
---|
1272 | END SUBROUTINE calc_ol |
---|
1273 | |
---|
1274 | |
---|
1275 | !--------------------------------------------------------------------------------------------------! |
---|
1276 | ! Description: |
---|
1277 | ! ------------ |
---|
1278 | !> Calculate friction velocity u*. |
---|
1279 | !--------------------------------------------------------------------------------------------------! |
---|
1280 | SUBROUTINE calc_us |
---|
1281 | |
---|
1282 | IMPLICIT NONE |
---|
1283 | |
---|
1284 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1285 | |
---|
1286 | ! |
---|
1287 | !-- Compute u* at horizontal surfaces at the scalars' grid points |
---|
1288 | IF ( .NOT. surf_vertical ) THEN |
---|
1289 | ! |
---|
1290 | !-- Compute u* at upward-facing surfaces |
---|
1291 | IF ( .NOT. downward ) THEN |
---|
1292 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
1293 | !$ACC PARALLEL LOOP PRIVATE(z_mo) & |
---|
1294 | !$ACC PRESENT(surf) |
---|
1295 | DO m = 1, surf%ns |
---|
1296 | z_mo = surf%z_mo(m) |
---|
1297 | ! |
---|
1298 | !-- Compute u* at the scalars' grid points |
---|
1299 | surf%us(m) = kappa * surf%uvw_abs(m) / ( surf%ln_z_z0(m) & |
---|
1300 | - psi_m( z_mo / surf%ol(m) ) & |
---|
1301 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
1302 | ENDDO |
---|
1303 | ! |
---|
1304 | !-- Compute u* at downward-facing surfaces. This case, do not consider any stability. |
---|
1305 | ELSE |
---|
1306 | !$OMP PARALLEL DO |
---|
1307 | !$ACC PARALLEL LOOP & |
---|
1308 | !$ACC PRESENT(surf) |
---|
1309 | DO m = 1, surf%ns |
---|
1310 | ! |
---|
1311 | !-- Compute u* at the scalars' grid points |
---|
1312 | surf%us(m) = kappa * surf%uvw_abs(m) / surf%ln_z_z0(m) |
---|
1313 | ENDDO |
---|
1314 | ENDIF |
---|
1315 | ! |
---|
1316 | !-- Compute u* at vertical surfaces at the u/v/v grid, respectively. |
---|
1317 | !-- No stability is considered in this case. |
---|
1318 | ELSE |
---|
1319 | !$OMP PARALLEL DO |
---|
1320 | !$ACC PARALLEL LOOP & |
---|
1321 | !$ACC PRESENT(surf) |
---|
1322 | DO m = 1, surf%ns |
---|
1323 | surf%us(m) = kappa * surf%uvw_abs(m) / surf%ln_z_z0(m) |
---|
1324 | ENDDO |
---|
1325 | ENDIF |
---|
1326 | |
---|
1327 | END SUBROUTINE calc_us |
---|
1328 | |
---|
1329 | !--------------------------------------------------------------------------------------------------! |
---|
1330 | ! Description: |
---|
1331 | ! ------------ |
---|
1332 | !> Calculate potential temperature, specific humidity, and virtual potential temperature at first |
---|
1333 | !> grid level. |
---|
1334 | !--------------------------------------------------------------------------------------------------! |
---|
1335 | SUBROUTINE calc_pt_q |
---|
1336 | |
---|
1337 | IMPLICIT NONE |
---|
1338 | |
---|
1339 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1340 | |
---|
1341 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1342 | !$ACC PARALLEL LOOP PRIVATE(i, j, k) & |
---|
1343 | !$ACC PRESENT(surf, pt) |
---|
1344 | DO m = 1, surf%ns |
---|
1345 | i = surf%i(m) |
---|
1346 | j = surf%j(m) |
---|
1347 | k = surf%k(m) |
---|
1348 | |
---|
1349 | #ifndef _OPENACC |
---|
1350 | IF ( bulk_cloud_model ) THEN |
---|
1351 | surf%pt1(m) = pt(k,j,i) + lv_d_cp * d_exner(k) * ql(k,j,i) |
---|
1352 | surf%qv1(m) = q(k,j,i) - ql(k,j,i) |
---|
1353 | ELSEIF( cloud_droplets ) THEN |
---|
1354 | surf%pt1(m) = pt(k,j,i) + lv_d_cp * d_exner(k) * ql(k,j,i) |
---|
1355 | surf%qv1(m) = q(k,j,i) |
---|
1356 | ELSE |
---|
1357 | #endif |
---|
1358 | surf%pt1(m) = pt(k,j,i) |
---|
1359 | #ifndef _OPENACC |
---|
1360 | IF ( humidity ) THEN |
---|
1361 | surf%qv1(m) = q(k,j,i) |
---|
1362 | ELSE |
---|
1363 | #endif |
---|
1364 | surf%qv1(m) = 0.0_wp |
---|
1365 | #ifndef _OPENACC |
---|
1366 | ENDIF |
---|
1367 | ENDIF |
---|
1368 | |
---|
1369 | IF ( humidity ) THEN |
---|
1370 | surf%vpt1(m) = pt(k,j,i) * ( 1.0_wp + 0.61_wp * q(k,j,i) ) |
---|
1371 | ENDIF |
---|
1372 | #endif |
---|
1373 | ENDDO |
---|
1374 | |
---|
1375 | END SUBROUTINE calc_pt_q |
---|
1376 | |
---|
1377 | |
---|
1378 | !--------------------------------------------------------------------------------------------------! |
---|
1379 | ! Description: |
---|
1380 | ! ------------ |
---|
1381 | !> Set potential temperature at surface grid level( only for upward-facing surfs ). |
---|
1382 | !--------------------------------------------------------------------------------------------------! |
---|
1383 | SUBROUTINE calc_pt_surface |
---|
1384 | |
---|
1385 | IMPLICIT NONE |
---|
1386 | |
---|
1387 | INTEGER(iwp) :: k_off !< index offset between surface and atmosphere grid point (-1 for upward-, +1 for downward-facing walls) |
---|
1388 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1389 | |
---|
1390 | k_off = surf%koff |
---|
1391 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1392 | !$ACC PARALLEL LOOP PRIVATE(i, j, k) & |
---|
1393 | !$ACC PRESENT(surf, pt) |
---|
1394 | DO m = 1, surf%ns |
---|
1395 | i = surf%i(m) |
---|
1396 | j = surf%j(m) |
---|
1397 | k = surf%k(m) |
---|
1398 | surf%pt_surface(m) = pt(k+k_off,j,i) |
---|
1399 | ENDDO |
---|
1400 | |
---|
1401 | END SUBROUTINE calc_pt_surface |
---|
1402 | |
---|
1403 | ! |
---|
1404 | !-- Set mixing ratio at surface grid level. ( Only for upward-facing surfs. ) |
---|
1405 | SUBROUTINE calc_q_surface |
---|
1406 | |
---|
1407 | IMPLICIT NONE |
---|
1408 | |
---|
1409 | INTEGER(iwp) :: k_off !< index offset between surface and atmosphere grid point (-1 for upward-, +1 for downward-facing walls) |
---|
1410 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1411 | |
---|
1412 | k_off = surf%koff |
---|
1413 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1414 | DO m = 1, surf%ns |
---|
1415 | i = surf%i(m) |
---|
1416 | j = surf%j(m) |
---|
1417 | k = surf%k(m) |
---|
1418 | surf%q_surface(m) = q(k+k_off,j,i) |
---|
1419 | ENDDO |
---|
1420 | |
---|
1421 | END SUBROUTINE calc_q_surface |
---|
1422 | |
---|
1423 | !--------------------------------------------------------------------------------------------------! |
---|
1424 | ! Description: |
---|
1425 | ! ------------ |
---|
1426 | !> Set virtual potential temperature at surface grid level ( only for upward-facing surfs ). |
---|
1427 | !--------------------------------------------------------------------------------------------------! |
---|
1428 | SUBROUTINE calc_vpt_surface |
---|
1429 | |
---|
1430 | IMPLICIT NONE |
---|
1431 | |
---|
1432 | INTEGER(iwp) :: k_off !< index offset between surface and atmosphere grid point (-1 for upward-, +1 for downward-facing walls) |
---|
1433 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1434 | |
---|
1435 | k_off = surf%koff |
---|
1436 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1437 | DO m = 1, surf%ns |
---|
1438 | i = surf%i(m) |
---|
1439 | j = surf%j(m) |
---|
1440 | k = surf%k(m) |
---|
1441 | surf%vpt_surface(m) = vpt(k+k_off,j,i) |
---|
1442 | |
---|
1443 | ENDDO |
---|
1444 | |
---|
1445 | END SUBROUTINE calc_vpt_surface |
---|
1446 | |
---|
1447 | !--------------------------------------------------------------------------------------------------! |
---|
1448 | ! Description: |
---|
1449 | ! ------------ |
---|
1450 | !> Calculate the other MOST scaling parameters theta*, q*, (qc*, qr*, nc*, nr*) |
---|
1451 | !--------------------------------------------------------------------------------------------------! |
---|
1452 | SUBROUTINE calc_scaling_parameters |
---|
1453 | |
---|
1454 | IMPLICIT NONE |
---|
1455 | |
---|
1456 | |
---|
1457 | INTEGER(iwp) :: lsp !< running index for chemical species |
---|
1458 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1459 | ! |
---|
1460 | !-- Compute theta* at horizontal surfaces |
---|
1461 | IF ( constant_heatflux .AND. .NOT. surf_vertical ) THEN |
---|
1462 | ! |
---|
1463 | !-- For a given heat flux in the surface layer: |
---|
1464 | |
---|
1465 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1466 | !$ACC PARALLEL LOOP PRIVATE(i, j, k) & |
---|
1467 | !$ACC PRESENT(surf, drho_air_zw) |
---|
1468 | DO m = 1, surf%ns |
---|
1469 | i = surf%i(m) |
---|
1470 | j = surf%j(m) |
---|
1471 | k = surf%k(m) |
---|
1472 | surf%ts(m) = -surf%shf(m) * drho_air_zw(k-1) / ( surf%us(m) + 1E-30_wp ) |
---|
1473 | ! |
---|
1474 | !-- ts must be limited, because otherwise overflow may occur in case of us=0 when computing |
---|
1475 | !-- ol further below |
---|
1476 | IF ( surf%ts(m) < -1.05E5_wp ) surf%ts(m) = -1.0E5_wp |
---|
1477 | IF ( surf%ts(m) > 1.0E5_wp ) surf%ts(m) = 1.0E5_wp |
---|
1478 | ENDDO |
---|
1479 | |
---|
1480 | ELSEIF ( .NOT. surf_vertical ) THEN |
---|
1481 | ! |
---|
1482 | !-- For a given surface temperature: |
---|
1483 | IF ( large_scale_forcing .AND. lsf_surf ) THEN |
---|
1484 | |
---|
1485 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1486 | DO m = 1, surf%ns |
---|
1487 | i = surf%i(m) |
---|
1488 | j = surf%j(m) |
---|
1489 | k = surf%k(m) |
---|
1490 | pt(k-1,j,i) = pt_surface |
---|
1491 | ENDDO |
---|
1492 | ENDIF |
---|
1493 | |
---|
1494 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
1495 | DO m = 1, surf%ns |
---|
1496 | z_mo = surf%z_mo(m) |
---|
1497 | surf%ts(m) = kappa * ( surf%pt1(m) - surf%pt_surface(m) ) & |
---|
1498 | / ( surf%ln_z_z0h(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1499 | + psi_h( surf%z0h(m) / surf%ol(m) ) ) |
---|
1500 | ENDDO |
---|
1501 | |
---|
1502 | ENDIF |
---|
1503 | ! |
---|
1504 | !-- Compute theta* at vertical surfaces. This is only required in case of land-surface model, in |
---|
1505 | !-- order to compute aerodynamical resistance. |
---|
1506 | IF ( surf_vertical ) THEN |
---|
1507 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1508 | DO m = 1, surf%ns |
---|
1509 | i = surf%i(m) |
---|
1510 | j = surf%j(m) |
---|
1511 | surf%ts(m) = -surf%shf(m) / ( surf%us(m) + 1E-30_wp ) |
---|
1512 | ! |
---|
1513 | !-- ts must be limited, because otherwise overflow may occur in case of us=0 when computing ol |
---|
1514 | !-- further below |
---|
1515 | IF ( surf%ts(m) < -1.05E5_wp ) surf%ts(m) = -1.0E5_wp |
---|
1516 | IF ( surf%ts(m) > 1.0E5_wp ) surf%ts(m) = 1.0E5_wp |
---|
1517 | ENDDO |
---|
1518 | ENDIF |
---|
1519 | |
---|
1520 | ! |
---|
1521 | !-- If required compute q* at horizontal surfaces |
---|
1522 | IF ( humidity ) THEN |
---|
1523 | IF ( constant_waterflux .AND. .NOT. surf_vertical ) THEN |
---|
1524 | ! |
---|
1525 | !-- For a given water flux in the surface layer |
---|
1526 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1527 | DO m = 1, surf%ns |
---|
1528 | i = surf%i(m) |
---|
1529 | j = surf%j(m) |
---|
1530 | k = surf%k(m) |
---|
1531 | surf%qs(m) = -surf%qsws(m) * drho_air_zw(k-1) / ( surf%us(m) + 1E-30_wp ) |
---|
1532 | ENDDO |
---|
1533 | |
---|
1534 | ELSEIF ( .NOT. surf_vertical ) THEN |
---|
1535 | coupled_run = ( coupling_mode == 'atmosphere_to_ocean' .AND. run_coupled ) |
---|
1536 | |
---|
1537 | IF ( large_scale_forcing .AND. lsf_surf ) THEN |
---|
1538 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1539 | DO m = 1, surf%ns |
---|
1540 | i = surf%i(m) |
---|
1541 | j = surf%j(m) |
---|
1542 | k = surf%k(m) |
---|
1543 | q(k-1,j,i) = q_surface |
---|
1544 | |
---|
1545 | ENDDO |
---|
1546 | ENDIF |
---|
1547 | |
---|
1548 | ! |
---|
1549 | !-- Assume saturation for atmosphere coupled to ocean (but not in case of precursor runs) |
---|
1550 | IF ( coupled_run ) THEN |
---|
1551 | !$OMP PARALLEL DO PRIVATE( i, j, k, e_s ) |
---|
1552 | DO m = 1, surf%ns |
---|
1553 | i = surf%i(m) |
---|
1554 | j = surf%j(m) |
---|
1555 | k = surf%k(m) |
---|
1556 | e_s = 6.1_wp * EXP( 0.07_wp * ( MIN( pt(k-1,j,i), pt(k,j,i) ) - 273.15_wp ) ) |
---|
1557 | q(k-1,j,i) = rd_d_rv * e_s / ( surface_pressure - e_s ) |
---|
1558 | ENDDO |
---|
1559 | ENDIF |
---|
1560 | |
---|
1561 | IF ( bulk_cloud_model .OR. cloud_droplets ) THEN |
---|
1562 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1563 | DO m = 1, surf%ns |
---|
1564 | i = surf%i(m) |
---|
1565 | j = surf%j(m) |
---|
1566 | k = surf%k(m) |
---|
1567 | z_mo = surf%z_mo(m) |
---|
1568 | surf%qs(m) = kappa * ( surf%qv1(m) - surf%q_surface(m) ) & |
---|
1569 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1570 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1571 | ENDDO |
---|
1572 | ELSE |
---|
1573 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1574 | DO m = 1, surf%ns |
---|
1575 | i = surf%i(m) |
---|
1576 | j = surf%j(m) |
---|
1577 | k = surf%k(m) |
---|
1578 | z_mo = surf%z_mo(m) |
---|
1579 | surf%qs(m) = kappa * ( q(k,j,i) - q(k-1,j,i) ) & |
---|
1580 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1581 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1582 | ENDDO |
---|
1583 | ENDIF |
---|
1584 | ENDIF |
---|
1585 | ! |
---|
1586 | !-- Compute q* at vertical surfaces |
---|
1587 | IF ( surf_vertical ) THEN |
---|
1588 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1589 | DO m = 1, surf%ns |
---|
1590 | |
---|
1591 | i = surf%i(m) |
---|
1592 | j = surf%j(m) |
---|
1593 | surf%qs(m) = -surf%qsws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
1594 | |
---|
1595 | ENDDO |
---|
1596 | ENDIF |
---|
1597 | ENDIF |
---|
1598 | |
---|
1599 | ! |
---|
1600 | !-- If required compute s* |
---|
1601 | IF ( passive_scalar ) THEN |
---|
1602 | ! |
---|
1603 | !-- At horizontal surfaces |
---|
1604 | IF ( constant_scalarflux .AND. .NOT. surf_vertical ) THEN |
---|
1605 | ! |
---|
1606 | !-- For a given scalar flux in the surface layer |
---|
1607 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1608 | DO m = 1, surf%ns |
---|
1609 | i = surf%i(m) |
---|
1610 | j = surf%j(m) |
---|
1611 | surf%ss(m) = -surf%ssws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
1612 | ENDDO |
---|
1613 | ELSEIF ( .NOT. surf_vertical ) THEN |
---|
1614 | |
---|
1615 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1616 | DO m = 1, surf%ns |
---|
1617 | i = surf%i(m) |
---|
1618 | j = surf%j(m) |
---|
1619 | k = surf%k(m) |
---|
1620 | z_mo = surf%z_mo(m) |
---|
1621 | |
---|
1622 | surf%ss(m) = kappa * ( s(k,j,i) - s(k-1,j,i) ) & |
---|
1623 | / ( surf%ln_z_z0h(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1624 | + psi_h( surf%z0h(m) / surf%ol(m) ) ) |
---|
1625 | ENDDO |
---|
1626 | ENDIF |
---|
1627 | ! |
---|
1628 | !-- At vertical surfaces |
---|
1629 | IF ( surf_vertical ) THEN |
---|
1630 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1631 | DO m = 1, surf%ns |
---|
1632 | i = surf%i(m) |
---|
1633 | j = surf%j(m) |
---|
1634 | surf%ss(m) = -surf%ssws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
1635 | ENDDO |
---|
1636 | ENDIF |
---|
1637 | ENDIF |
---|
1638 | |
---|
1639 | ! |
---|
1640 | !-- If required compute cs* (chemical species) |
---|
1641 | IF ( air_chemistry ) THEN |
---|
1642 | ! |
---|
1643 | !-- At horizontal surfaces |
---|
1644 | DO lsp = 1, nvar |
---|
1645 | IF ( constant_csflux(lsp) .AND. .NOT. surf_vertical ) THEN |
---|
1646 | !-- For a given chemical species' flux in the surface layer |
---|
1647 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1648 | DO m = 1, surf%ns |
---|
1649 | i = surf%i(m) |
---|
1650 | j = surf%j(m) |
---|
1651 | surf%css(lsp,m) = -surf%cssws(lsp,m) / ( surf%us(m) + 1E-30_wp ) |
---|
1652 | ENDDO |
---|
1653 | ENDIF |
---|
1654 | ENDDO |
---|
1655 | ! |
---|
1656 | !-- At vertical surfaces |
---|
1657 | IF ( surf_vertical ) THEN |
---|
1658 | DO lsp = 1, nvar |
---|
1659 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
1660 | DO m = 1, surf%ns |
---|
1661 | i = surf%i(m) |
---|
1662 | j = surf%j(m) |
---|
1663 | surf%css(lsp,m) = -surf%cssws(lsp,m) / ( surf%us(m) + 1E-30_wp ) |
---|
1664 | ENDDO |
---|
1665 | ENDDO |
---|
1666 | ENDIF |
---|
1667 | ENDIF |
---|
1668 | |
---|
1669 | ! |
---|
1670 | !-- If required compute qc* and nc* |
---|
1671 | IF ( bulk_cloud_model .AND. microphysics_morrison .AND. .NOT. surf_vertical ) THEN |
---|
1672 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1673 | DO m = 1, surf%ns |
---|
1674 | i = surf%i(m) |
---|
1675 | j = surf%j(m) |
---|
1676 | k = surf%k(m) |
---|
1677 | |
---|
1678 | z_mo = surf%z_mo(m) |
---|
1679 | |
---|
1680 | surf%qcs(m) = kappa * ( qc(k,j,i) - qc(k-1,j,i) ) & |
---|
1681 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1682 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1683 | |
---|
1684 | surf%ncs(m) = kappa * ( nc(k,j,i) - nc(k-1,j,i) ) & |
---|
1685 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1686 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1687 | ENDDO |
---|
1688 | |
---|
1689 | ENDIF |
---|
1690 | |
---|
1691 | ! |
---|
1692 | !-- If required compute qr* and nr* |
---|
1693 | IF ( bulk_cloud_model .AND. microphysics_seifert .AND. .NOT. surf_vertical ) THEN |
---|
1694 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1695 | DO m = 1, surf%ns |
---|
1696 | i = surf%i(m) |
---|
1697 | j = surf%j(m) |
---|
1698 | k = surf%k(m) |
---|
1699 | |
---|
1700 | z_mo = surf%z_mo(m) |
---|
1701 | |
---|
1702 | surf%qrs(m) = kappa * ( qr(k,j,i) - qr(k-1,j,i) ) & |
---|
1703 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1704 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1705 | |
---|
1706 | surf%nrs(m) = kappa * ( nr(k,j,i) - nr(k-1,j,i) ) & |
---|
1707 | / ( surf%ln_z_z0q(m) - psi_h( z_mo / surf%ol(m) ) & |
---|
1708 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
1709 | ENDDO |
---|
1710 | |
---|
1711 | ENDIF |
---|
1712 | |
---|
1713 | END SUBROUTINE calc_scaling_parameters |
---|
1714 | |
---|
1715 | |
---|
1716 | |
---|
1717 | !--------------------------------------------------------------------------------------------------! |
---|
1718 | ! Description: |
---|
1719 | ! ------------ |
---|
1720 | !> Calculate surface fluxes usws, vsws, shf, qsws, (qcsws, qrsws, ncsws, nrsws) |
---|
1721 | !--------------------------------------------------------------------------------------------------! |
---|
1722 | SUBROUTINE calc_surface_fluxes |
---|
1723 | |
---|
1724 | IMPLICIT NONE |
---|
1725 | |
---|
1726 | INTEGER(iwp) :: lsp !< running index for chemical species |
---|
1727 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
1728 | |
---|
1729 | REAL(wp) :: dum !< dummy to precalculate logarithm |
---|
1730 | REAL(wp) :: flag_u !< flag indicating u-grid, used for calculation of horizontal momentum fluxes at vertical surfaces |
---|
1731 | REAL(wp) :: flag_v !< flag indicating v-grid, used for calculation of horizontal momentum fluxes at vertical surfaces |
---|
1732 | |
---|
1733 | REAL(wp), DIMENSION(:), ALLOCATABLE :: u_i !< u-component interpolated onto scalar grid point, required for momentum fluxes |
---|
1734 | !< at vertical surfaces |
---|
1735 | REAL(wp), DIMENSION(:), ALLOCATABLE :: v_i !< v-component interpolated onto scalar grid point, required for momentum fluxes |
---|
1736 | !< at vertical surfaces |
---|
1737 | REAL(wp), DIMENSION(:), ALLOCATABLE :: w_i !< w-component interpolated onto scalar grid point, required for momentum fluxes |
---|
1738 | !< at vertical surfaces |
---|
1739 | |
---|
1740 | ! |
---|
1741 | !-- Calcuate surface fluxes at horizontal walls |
---|
1742 | IF ( .NOT. surf_vertical ) THEN |
---|
1743 | ! |
---|
1744 | !-- Compute u'w' for the total model domain at upward-facing surfaces. First compute the |
---|
1745 | !-- corresponding component of u* and square it. |
---|
1746 | IF ( .NOT. downward ) THEN |
---|
1747 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1748 | !$ACC PARALLEL LOOP PRIVATE(i, j, k, z_mo) & |
---|
1749 | !$ACC PRESENT(surf, u, rho_air_zw) |
---|
1750 | DO m = 1, surf%ns |
---|
1751 | i = surf%i(m) |
---|
1752 | j = surf%j(m) |
---|
1753 | k = surf%k(m) |
---|
1754 | |
---|
1755 | z_mo = surf%z_mo(m) |
---|
1756 | |
---|
1757 | surf%usws(m) = kappa * ( u(k,j,i) - u(k-1,j,i) ) & |
---|
1758 | / ( surf%ln_z_z0(m) - psi_m( z_mo / surf%ol(m) ) & |
---|
1759 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
1760 | ! |
---|
1761 | !-- Please note, the computation of usws is not fully accurate. Actually a further |
---|
1762 | !-- interpolation of us onto the u-grid, where usws is defined, is required. However, this |
---|
1763 | !-- is not done as this would require several data transfers between 2D-grid and the |
---|
1764 | !-- surf-type. The impact of the missing interpolation is negligible as several tests have |
---|
1765 | !-- shown. Same also for ol. |
---|
1766 | surf%usws(m) = -surf%usws(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1767 | ENDDO |
---|
1768 | ! |
---|
1769 | !-- At downward-facing surfaces |
---|
1770 | ELSE |
---|
1771 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1772 | DO m = 1, surf%ns |
---|
1773 | i = surf%i(m) |
---|
1774 | j = surf%j(m) |
---|
1775 | k = surf%k(m) |
---|
1776 | |
---|
1777 | surf%usws(m) = kappa * u(k,j,i) / surf%ln_z_z0(m) |
---|
1778 | surf%usws(m) = surf%usws(m) * surf%us(m) * rho_air_zw(k) |
---|
1779 | ENDDO |
---|
1780 | ENDIF |
---|
1781 | |
---|
1782 | ! |
---|
1783 | !-- Compute v'w' for the total model domain. First compute the corresponding component of u* and |
---|
1784 | !-- square it. |
---|
1785 | !-- Upward-facing surfaces |
---|
1786 | IF ( .NOT. downward ) THEN |
---|
1787 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
1788 | !$ACC PARALLEL LOOP PRIVATE(i, j, k, z_mo) & |
---|
1789 | !$ACC PRESENT(surf, v, rho_air_zw) |
---|
1790 | DO m = 1, surf%ns |
---|
1791 | i = surf%i(m) |
---|
1792 | j = surf%j(m) |
---|
1793 | k = surf%k(m) |
---|
1794 | |
---|
1795 | z_mo = surf%z_mo(m) |
---|
1796 | |
---|
1797 | surf%vsws(m) = kappa * ( v(k,j,i) - v(k-1,j,i) ) & |
---|
1798 | / ( surf%ln_z_z0(m) - psi_m( z_mo / surf%ol(m) ) & |
---|
1799 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
1800 | ! |
---|
1801 | !-- Please note, the computation of vsws is not fully accurate. Actually a further |
---|
1802 | !-- interpolation of us onto the v-grid, where vsws is defined, is required. However, this |
---|
1803 | !-- is not done as this would require several data transfers between 2D-grid and the |
---|
1804 | !-- surf-type. The impact of the missing interpolation is negligible as several tests have |
---|
1805 | !-- shown. Same also for ol. |
---|
1806 | surf%vsws(m) = -surf%vsws(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1807 | ENDDO |
---|
1808 | ! |
---|
1809 | !-- Downward-facing surfaces |
---|
1810 | ELSE |
---|
1811 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1812 | DO m = 1, surf%ns |
---|
1813 | i = surf%i(m) |
---|
1814 | j = surf%j(m) |
---|
1815 | k = surf%k(m) |
---|
1816 | |
---|
1817 | surf%vsws(m) = kappa * v(k,j,i) / surf%ln_z_z0(m) |
---|
1818 | surf%vsws(m) = surf%vsws(m) * surf%us(m) * rho_air_zw(k) |
---|
1819 | ENDDO |
---|
1820 | ENDIF |
---|
1821 | ! |
---|
1822 | !-- Compute the vertical kinematic heat flux. Note, only upward-facing surfaces are considered, |
---|
1823 | !-- at downward-facing surfaces the flux is not parametrized with a scaling parameter. |
---|
1824 | IF ( .NOT. constant_heatflux .AND. ( ( time_since_reference_point <= skip_time_do_lsm & |
---|
1825 | .AND. simulated_time > 0.0_wp ) .OR. .NOT. land_surface ) .AND. & |
---|
1826 | .NOT. urban_surface .AND. .NOT. downward ) THEN |
---|
1827 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1828 | DO m = 1, surf%ns |
---|
1829 | k = surf%k(m) |
---|
1830 | surf%shf(m) = -surf%ts(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1831 | ENDDO |
---|
1832 | ENDIF |
---|
1833 | ! |
---|
1834 | !-- Compute the vertical water flux |
---|
1835 | IF ( .NOT. constant_waterflux .AND. humidity .AND. & |
---|
1836 | ( ( time_since_reference_point <= skip_time_do_lsm .AND. simulated_time > 0.0_wp ) & |
---|
1837 | .OR. .NOT. land_surface ) .AND. .NOT. urban_surface .AND. .NOT. downward ) & |
---|
1838 | THEN |
---|
1839 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1840 | DO m = 1, surf%ns |
---|
1841 | k = surf%k(m) |
---|
1842 | surf%qsws(m) = -surf%qs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1843 | ENDDO |
---|
1844 | ENDIF |
---|
1845 | ! |
---|
1846 | !-- Compute the vertical scalar flux |
---|
1847 | IF ( .NOT. constant_scalarflux .AND. passive_scalar .AND. .NOT. downward ) THEN |
---|
1848 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1849 | DO m = 1, surf%ns |
---|
1850 | k = surf%k(m) |
---|
1851 | surf%ssws(m) = -surf%ss(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1852 | ENDDO |
---|
1853 | ENDIF |
---|
1854 | ! |
---|
1855 | !-- Compute the vertical chemical species' flux |
---|
1856 | DO lsp = 1, nvar |
---|
1857 | IF ( .NOT. constant_csflux(lsp) .AND. air_chemistry .AND. .NOT. downward ) THEN |
---|
1858 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1859 | DO m = 1, surf%ns |
---|
1860 | k = surf%k(m) |
---|
1861 | surf%cssws(lsp,m) = -surf%css(lsp,m) * surf%us(m) * rho_air_zw(k-1) |
---|
1862 | ENDDO |
---|
1863 | ENDIF |
---|
1864 | ENDDO |
---|
1865 | |
---|
1866 | ! |
---|
1867 | !-- Compute (turbulent) fluxes of cloud water content and cloud drop conc. |
---|
1868 | IF ( bulk_cloud_model .AND. microphysics_morrison .AND. .NOT. downward) THEN |
---|
1869 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1870 | DO m = 1, surf%ns |
---|
1871 | k = surf%k(m) |
---|
1872 | surf%qcsws(m) = -surf%qcs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1873 | surf%ncsws(m) = -surf%ncs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1874 | ENDDO |
---|
1875 | ENDIF |
---|
1876 | ! |
---|
1877 | !-- Compute (turbulent) fluxes of rain water content and rain drop conc. |
---|
1878 | IF ( bulk_cloud_model .AND. microphysics_seifert .AND. .NOT. downward) THEN |
---|
1879 | !$OMP PARALLEL DO PRIVATE( k ) |
---|
1880 | DO m = 1, surf%ns |
---|
1881 | k = surf%k(m) |
---|
1882 | surf%qrsws(m) = -surf%qrs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1883 | surf%nrsws(m) = -surf%nrs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
1884 | ENDDO |
---|
1885 | ENDIF |
---|
1886 | |
---|
1887 | ! |
---|
1888 | !-- Bottom boundary condition for the TKE. |
---|
1889 | IF ( ibc_e_b == 2 ) THEN |
---|
1890 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1891 | DO m = 1, surf%ns |
---|
1892 | i = surf%i(m) |
---|
1893 | j = surf%j(m) |
---|
1894 | k = surf%k(m) |
---|
1895 | |
---|
1896 | e(k,j,i) = ( surf%us(m) / 0.1_wp )**2 |
---|
1897 | ! |
---|
1898 | !-- As a test: cm = 0.4 |
---|
1899 | ! e(k,j,i) = ( us(j,i) / 0.4_wp )**2 |
---|
1900 | e(k-1,j,i) = e(k,j,i) |
---|
1901 | |
---|
1902 | ENDDO |
---|
1903 | ENDIF |
---|
1904 | ! |
---|
1905 | !-- Calcuate surface fluxes at vertical surfaces. No stability is considered. |
---|
1906 | !-- Further, no density needs to be considered here. |
---|
1907 | ELSE |
---|
1908 | ! |
---|
1909 | !-- Compute usvs l={0,1} and vsus l={2,3} |
---|
1910 | IF ( mom_uv ) THEN |
---|
1911 | ! |
---|
1912 | !-- Generalize computation by introducing flags. At north- and south-facing surfaces |
---|
1913 | !-- u-component is used, at east- and west-facing surfaces v-component is used. |
---|
1914 | flag_u = MERGE( 1.0_wp, 0.0_wp, l == 0 .OR. l == 1 ) |
---|
1915 | flag_v = MERGE( 1.0_wp, 0.0_wp, l == 2 .OR. l == 3 ) |
---|
1916 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1917 | DO m = 1, surf%ns |
---|
1918 | i = surf%i(m) |
---|
1919 | j = surf%j(m) |
---|
1920 | k = surf%k(m) |
---|
1921 | |
---|
1922 | surf%mom_flux_uv(m) = kappa * ( flag_u * u(k,j,i) + flag_v * v(k,j,i) ) / & |
---|
1923 | surf%ln_z_z0(m) |
---|
1924 | |
---|
1925 | surf%mom_flux_uv(m) = - surf%mom_flux_uv(m) * surf%us(m) |
---|
1926 | ENDDO |
---|
1927 | ENDIF |
---|
1928 | ! |
---|
1929 | !-- Compute wsus l={0,1} and wsvs l={2,3} |
---|
1930 | IF ( mom_w ) THEN |
---|
1931 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1932 | DO m = 1, surf%ns |
---|
1933 | i = surf%i(m) |
---|
1934 | j = surf%j(m) |
---|
1935 | k = surf%k(m) |
---|
1936 | |
---|
1937 | surf%mom_flux_w(m) = kappa * w(k,j,i) / surf%ln_z_z0(m) |
---|
1938 | |
---|
1939 | surf%mom_flux_w(m) = - surf%mom_flux_w(m) * surf%us(m) |
---|
1940 | ENDDO |
---|
1941 | ENDIF |
---|
1942 | ! |
---|
1943 | !-- Compute momentum fluxes used for subgrid-scale TKE production at vertical surfaces. In |
---|
1944 | !-- constrast to the calculated momentum fluxes at vertical surfaces before, which are defined on |
---|
1945 | !-- the u/v/w-grid, respectively), the TKE fluxes are defined at the scalar grid. |
---|
1946 | !-- |
---|
1947 | IF ( mom_tke ) THEN |
---|
1948 | ! |
---|
1949 | !-- Precalculate velocity components at scalar grid point. |
---|
1950 | ALLOCATE( u_i(1:surf%ns) ) |
---|
1951 | ALLOCATE( v_i(1:surf%ns) ) |
---|
1952 | ALLOCATE( w_i(1:surf%ns) ) |
---|
1953 | |
---|
1954 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
1955 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1956 | DO m = 1, surf%ns |
---|
1957 | i = surf%i(m) |
---|
1958 | j = surf%j(m) |
---|
1959 | k = surf%k(m) |
---|
1960 | |
---|
1961 | u_i(m) = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) |
---|
1962 | v_i(m) = 0.0_wp |
---|
1963 | w_i(m) = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
1964 | ENDDO |
---|
1965 | ELSE |
---|
1966 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
1967 | DO m = 1, surf%ns |
---|
1968 | i = surf%i(m) |
---|
1969 | j = surf%j(m) |
---|
1970 | k = surf%k(m) |
---|
1971 | |
---|
1972 | u_i(m) = 0.0_wp |
---|
1973 | v_i(m) = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) |
---|
1974 | w_i(m) = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
1975 | ENDDO |
---|
1976 | ENDIF |
---|
1977 | |
---|
1978 | !$OMP PARALLEL DO PRIVATE( i, j, dum ) |
---|
1979 | DO m = 1, surf%ns |
---|
1980 | i = surf%i(m) |
---|
1981 | j = surf%j(m) |
---|
1982 | |
---|
1983 | dum = kappa / surf%ln_z_z0(m) |
---|
1984 | ! |
---|
1985 | !-- usvs (l=0,1) and vsus (l=2,3) |
---|
1986 | surf%mom_flux_tke(0,m) = dum * ( u_i(m) + v_i(m) ) |
---|
1987 | ! |
---|
1988 | !-- wsvs (l=0,1) and wsus (l=2,3) |
---|
1989 | surf%mom_flux_tke(1,m) = dum * w_i(m) |
---|
1990 | |
---|
1991 | surf%mom_flux_tke(0:1,m) = - surf%mom_flux_tke(0:1,m) * surf%us(m) |
---|
1992 | ENDDO |
---|
1993 | ! |
---|
1994 | !-- Deallocate temporary arrays |
---|
1995 | DEALLOCATE( u_i ) |
---|
1996 | DEALLOCATE( v_i ) |
---|
1997 | DEALLOCATE( w_i ) |
---|
1998 | ENDIF |
---|
1999 | ENDIF |
---|
2000 | |
---|
2001 | END SUBROUTINE calc_surface_fluxes |
---|
2002 | |
---|
2003 | |
---|
2004 | !--------------------------------------------------------------------------------------------------! |
---|
2005 | ! Description: |
---|
2006 | ! ------------ |
---|
2007 | !> Calculates temperature near surface (10 cm) for indoor model or 2 m temperature for output. |
---|
2008 | !--------------------------------------------------------------------------------------------------! |
---|
2009 | SUBROUTINE calc_pt_near_surface ( z_char ) |
---|
2010 | |
---|
2011 | IMPLICIT NONE |
---|
2012 | |
---|
2013 | CHARACTER(LEN = *), INTENT(IN) :: z_char !< string identifier to identify z level |
---|
2014 | |
---|
2015 | INTEGER(iwp) :: m !< running index for surface elements |
---|
2016 | |
---|
2017 | SELECT CASE ( z_char) |
---|
2018 | |
---|
2019 | CASE ( '10cm' ) |
---|
2020 | |
---|
2021 | DO m = 1, surf%ns |
---|
2022 | surf%pt_10cm(m) = surf%pt_surface(m) + surf%ts(m) / kappa & |
---|
2023 | * ( LOG( 0.1_wp / surf%z0h(m) ) - psi_h( 0.1_wp / surf%ol(m) ) & |
---|
2024 | + psi_h( surf%z0h(m) / surf%ol(m) ) ) |
---|
2025 | ENDDO |
---|
2026 | |
---|
2027 | END SELECT |
---|
2028 | |
---|
2029 | END SUBROUTINE calc_pt_near_surface |
---|
2030 | |
---|
2031 | |
---|
2032 | !--------------------------------------------------------------------------------------------------! |
---|
2033 | ! Description: |
---|
2034 | ! ------------ |
---|
2035 | !> Integrated stability function for momentum. |
---|
2036 | !--------------------------------------------------------------------------------------------------! |
---|
2037 | FUNCTION psi_m( zeta ) |
---|
2038 | !$ACC ROUTINE SEQ |
---|
2039 | |
---|
2040 | USE kinds |
---|
2041 | |
---|
2042 | IMPLICIT NONE |
---|
2043 | |
---|
2044 | REAL(wp) :: psi_m !< Integrated similarity function result |
---|
2045 | REAL(wp) :: zeta !< Stability parameter z/L |
---|
2046 | REAL(wp) :: x !< dummy variable |
---|
2047 | |
---|
2048 | REAL(wp), PARAMETER :: a = 1.0_wp !< constant |
---|
2049 | REAL(wp), PARAMETER :: b = 0.66666666666_wp !< constant |
---|
2050 | REAL(wp), PARAMETER :: c = 5.0_wp !< constant |
---|
2051 | REAL(wp), PARAMETER :: d = 0.35_wp !< constant |
---|
2052 | REAL(wp), PARAMETER :: c_d_d = c / d !< constant |
---|
2053 | REAL(wp), PARAMETER :: bc_d_d = b * c / d !< constant |
---|
2054 | |
---|
2055 | |
---|
2056 | IF ( zeta < 0.0_wp ) THEN |
---|
2057 | x = SQRT( SQRT( 1.0_wp - 16.0_wp * zeta ) ) |
---|
2058 | psi_m = pi * 0.5_wp - 2.0_wp * ATAN( x ) + LOG( ( 1.0_wp + x )**2 & |
---|
2059 | * ( 1.0_wp + x**2 ) * 0.125_wp ) |
---|
2060 | ELSE |
---|
2061 | |
---|
2062 | psi_m = - b * ( zeta - c_d_d ) * EXP( -d * zeta ) - a * zeta - bc_d_d |
---|
2063 | ! |
---|
2064 | !-- Old version for stable conditions (only valid for z/L < 0.5) psi_m = - 5.0_wp * zeta |
---|
2065 | |
---|
2066 | ENDIF |
---|
2067 | |
---|
2068 | END FUNCTION psi_m |
---|
2069 | |
---|
2070 | |
---|
2071 | !--------------------------------------------------------------------------------------------------! |
---|
2072 | ! Description: |
---|
2073 | !------------ |
---|
2074 | !> Integrated stability function for heat and moisture. |
---|
2075 | !--------------------------------------------------------------------------------------------------! |
---|
2076 | FUNCTION psi_h( zeta ) |
---|
2077 | !$ACC ROUTINE SEQ |
---|
2078 | |
---|
2079 | USE kinds |
---|
2080 | |
---|
2081 | IMPLICIT NONE |
---|
2082 | |
---|
2083 | REAL(wp) :: psi_h !< Integrated similarity function result |
---|
2084 | REAL(wp) :: zeta !< Stability parameter z/L |
---|
2085 | REAL(wp) :: x !< dummy variable |
---|
2086 | |
---|
2087 | REAL(wp), PARAMETER :: a = 1.0_wp !< constant |
---|
2088 | REAL(wp), PARAMETER :: b = 0.66666666666_wp !< constant |
---|
2089 | REAL(wp), PARAMETER :: c = 5.0_wp !< constant |
---|
2090 | REAL(wp), PARAMETER :: d = 0.35_wp !< constant |
---|
2091 | REAL(wp), PARAMETER :: c_d_d = c / d !< constant |
---|
2092 | REAL(wp), PARAMETER :: bc_d_d = b * c / d !< constant |
---|
2093 | |
---|
2094 | |
---|
2095 | IF ( zeta < 0.0_wp ) THEN |
---|
2096 | x = SQRT( 1.0_wp - 16.0_wp * zeta ) |
---|
2097 | psi_h = 2.0_wp * LOG( (1.0_wp + x ) / 2.0_wp ) |
---|
2098 | ELSE |
---|
2099 | psi_h = - b * ( zeta - c_d_d ) * EXP( -d * zeta ) - (1.0_wp & |
---|
2100 | + 0.66666666666_wp * a * zeta )**1.5_wp - bc_d_d + 1.0_wp |
---|
2101 | ! |
---|
2102 | !-- Old version for stable conditions (only valid for z/L < 0.5) |
---|
2103 | !-- psi_h = - 5.0_wp * zeta |
---|
2104 | ENDIF |
---|
2105 | |
---|
2106 | END FUNCTION psi_h |
---|
2107 | |
---|
2108 | |
---|
2109 | !--------------------------------------------------------------------------------------------------! |
---|
2110 | ! Description: |
---|
2111 | ! ------------ |
---|
2112 | !> Calculates stability function for momentum |
---|
2113 | !> |
---|
2114 | !> @author Hauke Wurps |
---|
2115 | !--------------------------------------------------------------------------------------------------! |
---|
2116 | FUNCTION phi_m( zeta ) |
---|
2117 | !$ACC ROUTINE SEQ |
---|
2118 | |
---|
2119 | IMPLICIT NONE |
---|
2120 | |
---|
2121 | REAL(wp) :: phi_m !< Value of the function |
---|
2122 | REAL(wp) :: zeta !< Stability parameter z/L |
---|
2123 | |
---|
2124 | REAL(wp), PARAMETER :: a = 16.0_wp !< constant |
---|
2125 | REAL(wp), PARAMETER :: c = 5.0_wp !< constant |
---|
2126 | |
---|
2127 | IF ( zeta < 0.0_wp ) THEN |
---|
2128 | phi_m = 1.0_wp / SQRT( SQRT( 1.0_wp - a * zeta ) ) |
---|
2129 | ELSE |
---|
2130 | phi_m = 1.0_wp + c * zeta |
---|
2131 | ENDIF |
---|
2132 | |
---|
2133 | END FUNCTION phi_m |
---|
2134 | |
---|
2135 | END MODULE surface_layer_fluxes_mod |
---|