1 | !> @file plant_canopy_model_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 |
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6 | ! terms of the GNU General Public License as published by the Free Software |
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7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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8 | ! version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
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18 | ! Copyright 2017-2019 Institute of Computer Science of the |
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19 | ! Czech Academy of Sciences, Prague |
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20 | !------------------------------------------------------------------------------! |
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21 | ! |
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22 | ! Current revisions: |
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23 | ! ------------------ |
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24 | ! |
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25 | ! |
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26 | ! Former revisions: |
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27 | ! ----------------- |
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28 | ! $Id: plant_canopy_model_mod.f90 4188 2019-08-26 14:15:47Z suehring $ |
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29 | ! Minor adjustment in error number |
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30 | ! |
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31 | ! 4187 2019-08-26 12:43:15Z suehring |
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32 | ! Give specific error numbers instead of PA0999 |
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33 | ! |
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34 | ! 4182 2019-08-22 15:20:23Z scharf |
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35 | ! Corrected "Former revisions" section |
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36 | ! |
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37 | ! 4168 2019-08-16 13:50:17Z suehring |
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38 | ! Replace function get_topography_top_index by topo_top_ind |
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39 | ! |
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40 | ! 4127 2019-07-30 14:47:10Z suehring |
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41 | ! Output of 3D plant canopy variables changed. It is now relative to the local |
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42 | ! terrain rather than located at the acutal vertical level in the model. This |
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43 | ! way, the vertical dimension of the output can be significantly reduced. |
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44 | ! (merge from branch resler) |
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45 | ! |
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46 | ! 3885 2019-04-11 11:29:34Z kanani |
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47 | ! Changes related to global restructuring of location messages and introduction |
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48 | ! of additional debug messages |
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49 | ! |
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50 | ! 3864 2019-04-05 09:01:56Z monakurppa |
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51 | ! unsed variables removed |
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52 | ! |
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53 | ! 3745 2019-02-15 18:57:56Z suehring |
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54 | ! Bugfix in transpiration, floating invalid when temperature |
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55 | ! becomes > 40 degrees |
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56 | ! |
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57 | ! 3744 2019-02-15 18:38:58Z suehring |
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58 | ! Some interface calls moved to module_interface + cleanup |
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59 | ! |
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60 | ! 3655 2019-01-07 16:51:22Z knoop |
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61 | ! unused variables removed |
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62 | ! |
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63 | ! 138 2007-11-28 10:03:58Z letzel |
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64 | ! Initial revision |
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65 | ! |
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66 | ! Description: |
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67 | ! ------------ |
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68 | !> 1) Initialization of the canopy model, e.g. construction of leaf area density |
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69 | !> profile (subroutine pcm_init). |
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70 | !> 2) Calculation of sinks and sources of momentum, heat and scalar concentration |
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71 | !> due to canopy elements (subroutine pcm_tendency). |
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72 | ! |
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73 | ! @todo - precalculate constant terms in pcm_calc_transpiration_rate |
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74 | !------------------------------------------------------------------------------! |
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75 | MODULE plant_canopy_model_mod |
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76 | |
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77 | USE arrays_3d, & |
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78 | ONLY: dzu, dzw, e, exner, hyp, pt, q, s, tend, u, v, w, zu, zw |
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79 | |
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80 | USE basic_constants_and_equations_mod, & |
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81 | ONLY: c_p, degc_to_k, l_v, lv_d_cp, r_d, rd_d_rv |
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82 | |
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83 | USE control_parameters, & |
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84 | ONLY: debug_output, humidity |
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85 | |
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86 | USE indices, & |
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87 | ONLY: nbgp, nxl, nxlg, nxlu, nxr, nxrg, nyn, nyng, nys, nysg, nysv, & |
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88 | nz, nzb, nzt, topo_top_ind |
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89 | |
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90 | USE kinds |
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91 | |
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92 | USE pegrid |
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93 | |
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94 | |
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95 | IMPLICIT NONE |
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96 | |
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97 | |
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98 | CHARACTER (LEN=30) :: canopy_mode = 'block' !< canopy coverage |
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99 | LOGICAL :: plant_canopy_transpiration = .FALSE. !< flag to switch calculation of transpiration and corresponding latent heat |
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100 | !< for resolved plant canopy inside radiation model |
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101 | !< (calls subroutine pcm_calc_transpiration_rate from module plant_canopy_mod) |
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102 | |
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103 | INTEGER(iwp) :: pch_index = 0 !< plant canopy height/top index |
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104 | INTEGER(iwp) :: lad_vertical_gradient_level_ind(10) = -9999 !< lad-profile levels (index) |
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105 | |
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106 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: pch_index_ji !< local plant canopy top |
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107 | |
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108 | LOGICAL :: calc_beta_lad_profile = .FALSE. !< switch for calc. of lad from beta func. |
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109 | |
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110 | REAL(wp) :: alpha_lad = 9999999.9_wp !< coefficient for lad calculation |
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111 | REAL(wp) :: beta_lad = 9999999.9_wp !< coefficient for lad calculation |
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112 | REAL(wp) :: canopy_drag_coeff = 0.0_wp !< canopy drag coefficient (parameter) |
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113 | REAL(wp) :: cdc = 0.0_wp !< canopy drag coeff. (abbreviation used in equations) |
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114 | REAL(wp) :: cthf = 0.0_wp !< canopy top heat flux |
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115 | REAL(wp) :: dt_plant_canopy = 0.0_wp !< timestep account. for canopy drag |
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116 | REAL(wp) :: ext_coef = 0.6_wp !< extinction coefficient |
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117 | REAL(wp) :: lad_surface = 0.0_wp !< lad surface value |
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118 | REAL(wp) :: lai_beta = 0.0_wp !< leaf area index (lai) for lad calc. |
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119 | REAL(wp) :: leaf_scalar_exch_coeff = 0.0_wp !< canopy scalar exchange coeff. |
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120 | REAL(wp) :: leaf_surface_conc = 0.0_wp !< leaf surface concentration |
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121 | REAL(wp) :: lsc = 0.0_wp !< leaf surface concentration |
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122 | REAL(wp) :: lsec = 0.0_wp !< leaf scalar exchange coeff. |
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123 | |
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124 | REAL(wp) :: lad_vertical_gradient(10) = 0.0_wp !< lad gradient |
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125 | REAL(wp) :: lad_vertical_gradient_level(10) = -9999999.9_wp !< lad-prof. levels (in m) |
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126 | |
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127 | REAL(wp) :: lad_type_coef(0:10) = 1.0_wp !< multiplicative coeficients for particular types |
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128 | !< of plant canopy (e.g. deciduous tree during winter) |
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129 | |
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130 | REAL(wp), DIMENSION(:), ALLOCATABLE :: lad !< leaf area density |
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131 | REAL(wp), DIMENSION(:), ALLOCATABLE :: pre_lad !< preliminary lad |
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132 | |
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133 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: cum_lai_hf !< cumulative lai for heatflux calc. |
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134 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: lad_s !< lad on scalar-grid |
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135 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_heating_rate !< plant canopy heating rate |
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136 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_transpiration_rate !< plant canopy transpiration rate |
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137 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_latent_rate !< plant canopy latent heating rate |
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138 | |
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139 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pcm_heatrate_av !< array for averaging plant canopy sensible heating rate |
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140 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pcm_latentrate_av !< array for averaging plant canopy latent heating rate |
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141 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pcm_transpirationrate_av !< array for averaging plant canopy transpiration rate |
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142 | |
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143 | SAVE |
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144 | |
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145 | |
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146 | PRIVATE |
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147 | |
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148 | ! |
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149 | !-- Public functions |
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150 | PUBLIC pcm_calc_transpiration_rate, pcm_check_data_output, & |
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151 | pcm_check_parameters, pcm_3d_data_averaging, & |
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152 | pcm_data_output_3d, pcm_define_netcdf_grid, & |
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153 | pcm_header, pcm_init, pcm_parin, pcm_tendency |
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154 | |
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155 | ! |
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156 | !-- Public variables and constants |
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157 | PUBLIC cdc, pc_heating_rate, pc_transpiration_rate, pc_latent_rate, & |
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158 | canopy_mode, cthf, dt_plant_canopy, lad, lad_s, pch_index, & |
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159 | plant_canopy_transpiration |
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160 | |
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161 | INTERFACE pcm_calc_transpiration_rate |
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162 | MODULE PROCEDURE pcm_calc_transpiration_rate |
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163 | END INTERFACE pcm_calc_transpiration_rate |
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164 | |
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165 | INTERFACE pcm_check_data_output |
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166 | MODULE PROCEDURE pcm_check_data_output |
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167 | END INTERFACE pcm_check_data_output |
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168 | |
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169 | INTERFACE pcm_check_parameters |
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170 | MODULE PROCEDURE pcm_check_parameters |
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171 | END INTERFACE pcm_check_parameters |
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172 | |
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173 | INTERFACE pcm_3d_data_averaging |
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174 | MODULE PROCEDURE pcm_3d_data_averaging |
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175 | END INTERFACE pcm_3d_data_averaging |
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176 | |
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177 | INTERFACE pcm_data_output_3d |
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178 | MODULE PROCEDURE pcm_data_output_3d |
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179 | END INTERFACE pcm_data_output_3d |
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180 | |
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181 | INTERFACE pcm_define_netcdf_grid |
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182 | MODULE PROCEDURE pcm_define_netcdf_grid |
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183 | END INTERFACE pcm_define_netcdf_grid |
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184 | |
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185 | INTERFACE pcm_header |
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186 | MODULE PROCEDURE pcm_header |
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187 | END INTERFACE pcm_header |
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188 | |
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189 | INTERFACE pcm_init |
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190 | MODULE PROCEDURE pcm_init |
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191 | END INTERFACE pcm_init |
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192 | |
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193 | INTERFACE pcm_parin |
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194 | MODULE PROCEDURE pcm_parin |
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195 | END INTERFACE pcm_parin |
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196 | |
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197 | INTERFACE pcm_read_plant_canopy_3d |
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198 | MODULE PROCEDURE pcm_read_plant_canopy_3d |
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199 | END INTERFACE pcm_read_plant_canopy_3d |
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200 | |
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201 | INTERFACE pcm_tendency |
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202 | MODULE PROCEDURE pcm_tendency |
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203 | MODULE PROCEDURE pcm_tendency_ij |
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204 | END INTERFACE pcm_tendency |
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205 | |
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206 | |
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207 | CONTAINS |
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208 | |
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209 | |
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210 | |
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211 | !------------------------------------------------------------------------------! |
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212 | ! Description: |
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213 | ! ------------ |
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214 | !> Calculation of the plant canopy transpiration rate based on the Jarvis-Stewart |
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215 | !> with parametrizations described in Daudet et al. (1999; Agricult. and Forest |
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216 | !> Meteorol. 97) and Ngao, Adam and Saudreau (2017; Agricult. and Forest Meteorol |
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217 | !> 237-238). Model functions f1-f4 were adapted from Stewart (1998; Agric. |
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218 | !> and Forest. Meteorol. 43) instead, because they are valid for broader intervals |
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219 | !> of values. Funcion f4 used in form present in van Wijk et al. (1998; |
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220 | !> Tree Physiology 20). |
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221 | !> |
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222 | !> This subroutine is called from subroutine radiation_interaction |
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223 | !> after the calculation of radiation in plant canopy boxes. |
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224 | !> (arrays pcbinsw and pcbinlw). |
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225 | !> |
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226 | !------------------------------------------------------------------------------! |
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227 | SUBROUTINE pcm_calc_transpiration_rate(i, j, k, kk, pcbsw, pcblw, pcbtr, pcblh) |
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228 | |
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229 | USE control_parameters, & |
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230 | ONLY: dz |
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231 | |
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232 | USE grid_variables, & |
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233 | ONLY: dx, dy |
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234 | |
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235 | IMPLICIT NONE |
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236 | !-- input parameters |
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237 | INTEGER(iwp), INTENT(IN) :: i, j, k, kk !< indices of the pc gridbox |
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238 | REAL(wp), INTENT(IN) :: pcbsw !< sw radiation in gridbox (W) |
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239 | REAL(wp), INTENT(IN) :: pcblw !< lw radiation in gridbox (W) |
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240 | REAL(wp), INTENT(OUT) :: pcbtr !< transpiration rate dq/dt (kg/kg/s) |
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241 | REAL(wp), INTENT(OUT) :: pcblh !< latent heat from transpiration dT/dt (K/s) |
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242 | |
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243 | !-- variables and parameters for calculation of transpiration rate |
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244 | REAL(wp) :: sat_press, sat_press_d, temp, v_lad |
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245 | REAL(wp) :: d_fact, g_b, g_s, wind_speed, evapor_rate |
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246 | REAL(wp) :: f1, f2, f3, f4, vpd, rswc, e_eq, e_imp, rad |
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247 | REAL(wp), PARAMETER :: gama_psychr = 66 !< psychrometric constant (Pa/K) |
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248 | REAL(wp), PARAMETER :: g_s_max = 0.01 !< maximum stomatal conductivity (m/s) |
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249 | REAL(wp), PARAMETER :: m_soil = 0.4_wp !< soil water content (needs to adjust or take from LSM) |
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250 | REAL(wp), PARAMETER :: m_wilt = 0.01_wp !< wilting point soil water content (needs to adjust or take from LSM) |
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251 | REAL(wp), PARAMETER :: m_sat = 0.51_wp !< saturation soil water content (needs to adjust or take from LSM) |
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252 | REAL(wp), PARAMETER :: t2_min = 0.0_wp !< minimal temperature for calculation of f2 |
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253 | REAL(wp), PARAMETER :: t2_max = 40.0_wp !< maximal temperature for calculation of f2 |
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254 | |
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255 | |
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256 | !-- Temperature (deg C) |
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257 | temp = pt(k,j,i) * exner(k) - degc_to_k |
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258 | !-- Coefficient for conversion of radiation to grid to radiation to unit leaves surface |
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259 | v_lad = 1.0_wp / ( MAX( lad_s(kk,j,i), 1.0e-10_wp ) * dx * dy * dz(1) ) |
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260 | !-- Magnus formula for the saturation pressure (see Ngao, Adam and Saudreau (2017) eq. 1) |
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261 | !-- There are updated formulas available, kept consistent with the rest of the parametrization |
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262 | sat_press = 610.8_wp * exp(17.27_wp * temp/(temp + 237.3_wp)) |
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263 | !-- Saturation pressure derivative (derivative of the above) |
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264 | sat_press_d = sat_press * 17.27_wp * 237.3_wp / (temp + 237.3_wp)**2 |
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265 | !-- Wind speed |
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266 | wind_speed = SQRT( ( 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) )**2 + & |
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267 | ( 0.5_wp * ( v(k,j,i) + v(k,j,i+1) ) )**2 + & |
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268 | ( 0.5_wp * ( w(k,j,i) + w(k,j,i+1) ) )**2 ) |
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269 | !-- Aerodynamic conductivity (Daudet et al. (1999) eq. 14 |
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270 | g_b = 0.01_wp * wind_speed + 0.0071_wp |
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271 | !-- Radiation flux per leaf surface unit |
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272 | rad = pcbsw * v_lad |
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273 | !-- First function for calculation of stomatal conductivity (radiation dependency) |
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274 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 17 |
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275 | f1 = rad * (1000._wp+42.1_wp) / 1000._wp / (rad+42.1_wp) |
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276 | !-- Second function for calculation of stomatal conductivity (temperature dependency) |
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277 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 21 |
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278 | f2 = MAX(t2_min, (temp-t2_min) * MAX(0.0_wp,t2_max-temp)**((t2_max-16.9_wp)/(16.9_wp-t2_min)) / & |
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279 | ((16.9_wp-t2_min) * (t2_max-16.9_wp)**((t2_max-16.9_wp)/(16.9_wp-t2_min))) ) |
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280 | !-- Water pressure deficit |
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281 | !-- Ngao, Adam and Saudreau (2017) eq. 6 but with water vapour partial pressure |
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282 | vpd = max( sat_press - q(k,j,i) * hyp(k) / rd_d_rv, 0._wp ) |
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283 | !-- Third function for calculation of stomatal conductivity (water pressure deficit dependency) |
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284 | !-- Ngao, Adam and Saudreau (2017) Table 1, limited from below according to Stewart (1988) |
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285 | !-- The coefficients of the linear dependence should better correspond to broad-leaved trees |
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286 | !-- than the coefficients from Stewart (1988) which correspond to conifer trees. |
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287 | vpd = MIN(MAX(vpd,770.0_wp),3820.0_wp) |
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288 | f3 = -2e-4_wp * vpd + 1.154_wp |
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289 | !-- Fourth function for calculation of stomatal conductivity (soil moisture dependency) |
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290 | !-- Residual soil water content |
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291 | !-- van Wijk et al. (1998; Tree Physiology 20) eq. 7 |
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292 | !-- TODO - over LSM surface might be calculated from LSM parameters |
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293 | rswc = ( m_sat - m_soil ) / ( m_sat - m_wilt ) |
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294 | !-- van Wijk et al. (1998; Tree Physiology 20) eq. 5-6 (it is a reformulation of eq. 22-23 of Stewart(1988)) |
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295 | f4 = MAX(0._wp, MIN(1.0_wp - 0.041_wp * EXP(3.2_wp * rswc), 1.0_wp - 0.041_wp)) |
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296 | !-- Stomatal conductivity |
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297 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 12 |
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298 | !-- (notation according to Ngao, Adam and Saudreau (2017) and others) |
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299 | g_s = g_s_max * f1 * f2 * f3 * f4 + 1.0e-10_wp |
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300 | !-- Decoupling factor |
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301 | !-- Daudet et al. (1999) eq. 6 |
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302 | d_fact = (sat_press_d / gama_psychr + 2._wp ) / & |
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303 | (sat_press_d / gama_psychr + 2._wp + 2 * g_b / g_s ) |
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304 | !-- Equilibrium evaporation rate |
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305 | !-- Daudet et al. (1999) eq. 4 |
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306 | e_eq = (pcbsw + pcblw) * v_lad * sat_press_d / & |
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307 | gama_psychr /( sat_press_d / gama_psychr + 2.0_wp ) / l_v |
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308 | !-- Imposed evaporation rate |
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309 | !-- Daudet et al. (1999) eq. 5 |
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310 | e_imp = r_d * pt(k,j,i) * exner(k) / hyp(k) * c_p * g_s * vpd / gama_psychr / l_v |
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311 | !-- Evaporation rate |
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312 | !-- Daudet et al. (1999) eq. 3 |
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313 | !-- (evaporation rate is limited to non-negative values) |
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314 | evapor_rate = MAX(d_fact * e_eq + ( 1.0_wp - d_fact ) * e_imp, 0.0_wp) |
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315 | !-- Conversion of evaporation rate to q tendency in gridbox |
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316 | !-- dq/dt = E * LAD * V_g / (rho_air * V_g) |
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317 | pcbtr = evapor_rate * r_d * pt(k,j,i) * exner(k) * lad_s(kk,j,i) / hyp(k) !-- = dq/dt |
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318 | !-- latent heat from evaporation |
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319 | pcblh = pcbtr * lv_d_cp !-- = - dT/dt |
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320 | |
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321 | END SUBROUTINE pcm_calc_transpiration_rate |
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322 | |
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323 | |
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324 | !------------------------------------------------------------------------------! |
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325 | ! Description: |
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326 | ! ------------ |
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327 | !> Check data output for plant canopy model |
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328 | !------------------------------------------------------------------------------! |
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329 | SUBROUTINE pcm_check_data_output( var, unit ) |
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330 | |
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331 | |
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332 | USE control_parameters, & |
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333 | ONLY: message_string, urban_surface |
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334 | |
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335 | IMPLICIT NONE |
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336 | |
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337 | CHARACTER (LEN=*) :: unit !< |
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338 | CHARACTER (LEN=*) :: var !< |
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339 | |
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340 | |
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341 | SELECT CASE ( TRIM( var ) ) |
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342 | |
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343 | CASE ( 'pcm_heatrate' ) |
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344 | IF ( cthf == 0.0_wp .AND. .NOT. urban_surface ) THEN |
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345 | message_string = 'output of "' // TRIM( var ) // '" requi' // & |
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346 | 'res setting of parameter cthf /= 0.0' |
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347 | CALL message( 'pcm_check_data_output', 'PA1000', 1, 2, 0, 6, 0 ) |
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348 | ENDIF |
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349 | unit = 'K s-1' |
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350 | |
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351 | CASE ( 'pcm_transpirationrate' ) |
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352 | unit = 'kg kg-1 s-1' |
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353 | |
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354 | CASE ( 'pcm_latentrate' ) |
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355 | unit = 'K s-1' |
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356 | |
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357 | CASE ( 'pcm_bowenratio' ) |
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358 | unit = 'K s-1' |
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359 | |
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360 | CASE ( 'pcm_lad' ) |
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361 | unit = 'm2 m-3' |
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362 | |
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363 | |
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364 | CASE DEFAULT |
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365 | unit = 'illegal' |
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366 | |
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367 | END SELECT |
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368 | |
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369 | |
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370 | END SUBROUTINE pcm_check_data_output |
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371 | |
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372 | |
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373 | !------------------------------------------------------------------------------! |
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374 | ! Description: |
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375 | ! ------------ |
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376 | !> Check parameters routine for plant canopy model |
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377 | !------------------------------------------------------------------------------! |
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378 | SUBROUTINE pcm_check_parameters |
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379 | |
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380 | USE control_parameters, & |
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381 | ONLY: coupling_char, message_string |
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382 | |
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383 | USE bulk_cloud_model_mod, & |
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384 | ONLY: bulk_cloud_model, microphysics_seifert |
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385 | |
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386 | USE netcdf_data_input_mod, & |
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387 | ONLY: input_file_static, input_pids_static |
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388 | |
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389 | |
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390 | IMPLICIT NONE |
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391 | |
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392 | |
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393 | IF ( canopy_drag_coeff == 0.0_wp ) THEN |
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394 | message_string = 'plant_canopy = .TRUE. requires a non-zero drag '// & |
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395 | 'coefficient & given value is canopy_drag_coeff = 0.0' |
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396 | CALL message( 'pcm_check_parameters', 'PA0041', 1, 2, 0, 6, 0 ) |
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397 | ENDIF |
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398 | |
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399 | IF ( ( alpha_lad /= 9999999.9_wp .AND. beta_lad == 9999999.9_wp ) .OR.& |
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400 | beta_lad /= 9999999.9_wp .AND. alpha_lad == 9999999.9_wp ) THEN |
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401 | message_string = 'using the beta function for the construction ' // & |
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402 | 'of the leaf area density profile requires ' // & |
---|
403 | 'both alpha_lad and beta_lad to be /= 9999999.9' |
---|
404 | CALL message( 'pcm_check_parameters', 'PA0118', 1, 2, 0, 6, 0 ) |
---|
405 | ENDIF |
---|
406 | |
---|
407 | IF ( calc_beta_lad_profile .AND. lai_beta == 0.0_wp ) THEN |
---|
408 | message_string = 'using the beta function for the construction ' // & |
---|
409 | 'of the leaf area density profile requires ' // & |
---|
410 | 'a non-zero lai_beta, but given value is ' // & |
---|
411 | 'lai_beta = 0.0' |
---|
412 | CALL message( 'pcm_check_parameters', 'PA0119', 1, 2, 0, 6, 0 ) |
---|
413 | ENDIF |
---|
414 | |
---|
415 | IF ( calc_beta_lad_profile .AND. lad_surface /= 0.0_wp ) THEN |
---|
416 | message_string = 'simultaneous setting of alpha_lad /= 9999999.9 '// & |
---|
417 | 'combined with beta_lad /= 9999999.9 ' // & |
---|
418 | 'and lad_surface /= 0.0 is not possible, ' // & |
---|
419 | 'use either vertical gradients or the beta ' // & |
---|
420 | 'function for the construction of the leaf area '// & |
---|
421 | 'density profile' |
---|
422 | CALL message( 'pcm_check_parameters', 'PA0120', 1, 2, 0, 6, 0 ) |
---|
423 | ENDIF |
---|
424 | |
---|
425 | IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN |
---|
426 | message_string = 'plant_canopy = .TRUE. requires cloud_scheme /=' // & |
---|
427 | ' seifert_beheng' |
---|
428 | CALL message( 'pcm_check_parameters', 'PA0360', 1, 2, 0, 6, 0 ) |
---|
429 | ENDIF |
---|
430 | ! |
---|
431 | !-- If dynamic input file is used, canopy need to be read from file |
---|
432 | IF ( input_pids_static .AND. & |
---|
433 | TRIM( canopy_mode ) /= 'read_from_file_3d' ) THEN |
---|
434 | message_string = 'Usage of dynamic input file ' // & |
---|
435 | TRIM( input_file_static ) // & |
---|
436 | TRIM( coupling_char ) // ' requires ' // & |
---|
437 | 'canopy_mode = read_from_file_3d' |
---|
438 | CALL message( 'pcm_check_parameters', 'PA0672', 1, 2, 0, 6, 0 ) |
---|
439 | ENDIF |
---|
440 | |
---|
441 | |
---|
442 | END SUBROUTINE pcm_check_parameters |
---|
443 | |
---|
444 | |
---|
445 | !------------------------------------------------------------------------------! |
---|
446 | ! |
---|
447 | ! Description: |
---|
448 | ! ------------ |
---|
449 | !> Subroutine for averaging 3D data |
---|
450 | !------------------------------------------------------------------------------! |
---|
451 | SUBROUTINE pcm_3d_data_averaging( mode, variable ) |
---|
452 | |
---|
453 | |
---|
454 | USE control_parameters |
---|
455 | |
---|
456 | USE indices |
---|
457 | |
---|
458 | USE kinds |
---|
459 | |
---|
460 | IMPLICIT NONE |
---|
461 | |
---|
462 | CHARACTER (LEN=*) :: mode !< |
---|
463 | CHARACTER (LEN=*) :: variable !< |
---|
464 | |
---|
465 | INTEGER(iwp) :: i !< |
---|
466 | INTEGER(iwp) :: j !< |
---|
467 | INTEGER(iwp) :: k !< |
---|
468 | |
---|
469 | |
---|
470 | IF ( mode == 'allocate' ) THEN |
---|
471 | |
---|
472 | SELECT CASE ( TRIM( variable ) ) |
---|
473 | |
---|
474 | CASE ( 'pcm_heatrate' ) |
---|
475 | IF ( .NOT. ALLOCATED( pcm_heatrate_av ) ) THEN |
---|
476 | ALLOCATE( pcm_heatrate_av(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
477 | ENDIF |
---|
478 | pcm_heatrate_av = 0.0_wp |
---|
479 | |
---|
480 | |
---|
481 | CASE ( 'pcm_latentrate' ) |
---|
482 | IF ( .NOT. ALLOCATED( pcm_latentrate_av ) ) THEN |
---|
483 | ALLOCATE( pcm_latentrate_av(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
484 | ENDIF |
---|
485 | pcm_latentrate_av = 0.0_wp |
---|
486 | |
---|
487 | |
---|
488 | CASE ( 'pcm_transpirationrate' ) |
---|
489 | IF ( .NOT. ALLOCATED( pcm_transpirationrate_av ) ) THEN |
---|
490 | ALLOCATE( pcm_transpirationrate_av(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
491 | ENDIF |
---|
492 | pcm_transpirationrate_av = 0.0_wp |
---|
493 | |
---|
494 | CASE DEFAULT |
---|
495 | CONTINUE |
---|
496 | |
---|
497 | END SELECT |
---|
498 | |
---|
499 | ELSEIF ( mode == 'sum' ) THEN |
---|
500 | |
---|
501 | SELECT CASE ( TRIM( variable ) ) |
---|
502 | |
---|
503 | CASE ( 'pcm_heatrate' ) |
---|
504 | IF ( ALLOCATED( pcm_heatrate_av ) ) THEN |
---|
505 | DO i = nxl, nxr |
---|
506 | DO j = nys, nyn |
---|
507 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
508 | DO k = 0, pch_index_ji(j,i) |
---|
509 | pcm_heatrate_av(k,j,i) = pcm_heatrate_av(k,j,i) + pc_heating_rate(k,j,i) |
---|
510 | ENDDO |
---|
511 | ENDIF |
---|
512 | ENDDO |
---|
513 | ENDDO |
---|
514 | ENDIF |
---|
515 | |
---|
516 | |
---|
517 | CASE ( 'pcm_latentrate' ) |
---|
518 | IF ( ALLOCATED( pcm_latentrate_av ) ) THEN |
---|
519 | DO i = nxl, nxr |
---|
520 | DO j = nys, nyn |
---|
521 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
522 | DO k = 0, pch_index_ji(j,i) |
---|
523 | pcm_latentrate_av(k,j,i) = pcm_latentrate_av(k,j,i) + pc_latent_rate(k,j,i) |
---|
524 | ENDDO |
---|
525 | ENDIF |
---|
526 | ENDDO |
---|
527 | ENDDO |
---|
528 | ENDIF |
---|
529 | |
---|
530 | |
---|
531 | CASE ( 'pcm_transpirationrate' ) |
---|
532 | IF ( ALLOCATED( pcm_transpirationrate_av ) ) THEN |
---|
533 | DO i = nxl, nxr |
---|
534 | DO j = nys, nyn |
---|
535 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
536 | DO k = 0, pch_index_ji(j,i) |
---|
537 | pcm_transpirationrate_av(k,j,i) = pcm_transpirationrate_av(k,j,i) + pc_transpiration_rate(k,j,i) |
---|
538 | ENDDO |
---|
539 | ENDIF |
---|
540 | ENDDO |
---|
541 | ENDDO |
---|
542 | ENDIF |
---|
543 | |
---|
544 | CASE DEFAULT |
---|
545 | CONTINUE |
---|
546 | |
---|
547 | END SELECT |
---|
548 | |
---|
549 | ELSEIF ( mode == 'average' ) THEN |
---|
550 | |
---|
551 | SELECT CASE ( TRIM( variable ) ) |
---|
552 | |
---|
553 | CASE ( 'pcm_heatrate' ) |
---|
554 | IF ( ALLOCATED( pcm_heatrate_av ) ) THEN |
---|
555 | DO i = nxlg, nxrg |
---|
556 | DO j = nysg, nyng |
---|
557 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
558 | DO k = 0, pch_index_ji(j,i) |
---|
559 | pcm_heatrate_av(k,j,i) = pcm_heatrate_av(k,j,i) & |
---|
560 | / REAL( average_count_3d, KIND=wp ) |
---|
561 | ENDDO |
---|
562 | ENDIF |
---|
563 | ENDDO |
---|
564 | ENDDO |
---|
565 | ENDIF |
---|
566 | |
---|
567 | |
---|
568 | CASE ( 'pcm_latentrate' ) |
---|
569 | IF ( ALLOCATED( pcm_latentrate_av ) ) THEN |
---|
570 | DO i = nxlg, nxrg |
---|
571 | DO j = nysg, nyng |
---|
572 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
573 | DO k = 0, pch_index_ji(j,i) |
---|
574 | pcm_latentrate_av(k,j,i) = pcm_latentrate_av(k,j,i) & |
---|
575 | / REAL( average_count_3d, KIND=wp ) |
---|
576 | ENDDO |
---|
577 | ENDIF |
---|
578 | ENDDO |
---|
579 | ENDDO |
---|
580 | ENDIF |
---|
581 | |
---|
582 | |
---|
583 | CASE ( 'pcm_transpirationrate' ) |
---|
584 | IF ( ALLOCATED( pcm_transpirationrate_av ) ) THEN |
---|
585 | DO i = nxlg, nxrg |
---|
586 | DO j = nysg, nyng |
---|
587 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
588 | DO k = 0, pch_index_ji(j,i) |
---|
589 | pcm_transpirationrate_av(k,j,i) = pcm_transpirationrate_av(k,j,i) & |
---|
590 | / REAL( average_count_3d, KIND=wp ) |
---|
591 | ENDDO |
---|
592 | ENDIF |
---|
593 | ENDDO |
---|
594 | ENDDO |
---|
595 | ENDIF |
---|
596 | |
---|
597 | END SELECT |
---|
598 | |
---|
599 | ENDIF |
---|
600 | |
---|
601 | END SUBROUTINE pcm_3d_data_averaging |
---|
602 | |
---|
603 | !------------------------------------------------------------------------------! |
---|
604 | ! |
---|
605 | ! Description: |
---|
606 | ! ------------ |
---|
607 | !> Subroutine defining 3D output variables. |
---|
608 | !> Note, 3D plant-canopy output has it's own vertical output dimension, meaning |
---|
609 | !> that 3D output is relative to the model surface now rather than at the actual |
---|
610 | !> grid point where the plant canopy is located. |
---|
611 | !------------------------------------------------------------------------------! |
---|
612 | SUBROUTINE pcm_data_output_3d( av, variable, found, local_pf, fill_value, & |
---|
613 | nzb_do, nzt_do ) |
---|
614 | |
---|
615 | USE indices |
---|
616 | |
---|
617 | USE kinds |
---|
618 | |
---|
619 | |
---|
620 | IMPLICIT NONE |
---|
621 | |
---|
622 | CHARACTER (LEN=*) :: variable !< |
---|
623 | |
---|
624 | INTEGER(iwp) :: av !< |
---|
625 | INTEGER(iwp) :: i !< |
---|
626 | INTEGER(iwp) :: j !< |
---|
627 | INTEGER(iwp) :: k !< |
---|
628 | INTEGER(iwp) :: nzb_do !< lower limit of the data output (usually 0) |
---|
629 | INTEGER(iwp) :: nzt_do !< vertical upper limit of the data output (usually nz_do3d) |
---|
630 | |
---|
631 | LOGICAL :: found !< |
---|
632 | |
---|
633 | REAL(wp) :: fill_value |
---|
634 | REAL(sp), DIMENSION(nxl:nxr,nys:nyn,nzb_do:nzt_do) :: local_pf !< |
---|
635 | |
---|
636 | |
---|
637 | found = .TRUE. |
---|
638 | |
---|
639 | local_pf = REAL( fill_value, KIND = 4 ) |
---|
640 | |
---|
641 | SELECT CASE ( TRIM( variable ) ) |
---|
642 | |
---|
643 | CASE ( 'pcm_heatrate' ) |
---|
644 | IF ( av == 0 ) THEN |
---|
645 | DO i = nxl, nxr |
---|
646 | DO j = nys, nyn |
---|
647 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
648 | DO k = nzb_do, nzt_do |
---|
649 | local_pf(i,j,k) = pc_heating_rate(k,j,i) |
---|
650 | ENDDO |
---|
651 | ENDIF |
---|
652 | ENDDO |
---|
653 | ENDDO |
---|
654 | ELSE |
---|
655 | DO i = nxl, nxr |
---|
656 | DO j = nys, nyn |
---|
657 | DO k = nzb_do, nzt_do |
---|
658 | local_pf(i,j,k) = pcm_heatrate_av(k,j,i) |
---|
659 | ENDDO |
---|
660 | ENDDO |
---|
661 | ENDDO |
---|
662 | ENDIF |
---|
663 | |
---|
664 | CASE ( 'pcm_latentrate' ) |
---|
665 | IF ( av == 0 ) THEN |
---|
666 | DO i = nxl, nxr |
---|
667 | DO j = nys, nyn |
---|
668 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
669 | DO k = nzb_do, nzt_do |
---|
670 | local_pf(i,j,k) = pc_latent_rate(k,j,i) |
---|
671 | ENDDO |
---|
672 | ENDIF |
---|
673 | ENDDO |
---|
674 | ENDDO |
---|
675 | ELSE |
---|
676 | DO i = nxl, nxr |
---|
677 | DO j = nys, nyn |
---|
678 | DO k = nzb_do, nzt_do |
---|
679 | local_pf(i,j,k) = pcm_latentrate_av(k,j,i) |
---|
680 | ENDDO |
---|
681 | ENDDO |
---|
682 | ENDDO |
---|
683 | ENDIF |
---|
684 | |
---|
685 | CASE ( 'pcm_transpirationrate' ) |
---|
686 | IF ( av == 0 ) THEN |
---|
687 | DO i = nxl, nxr |
---|
688 | DO j = nys, nyn |
---|
689 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
690 | DO k = nzb_do, nzt_do |
---|
691 | local_pf(i,j,k) = pc_transpiration_rate(k,j,i) |
---|
692 | ENDDO |
---|
693 | ENDIF |
---|
694 | ENDDO |
---|
695 | ENDDO |
---|
696 | ELSE |
---|
697 | DO i = nxl, nxr |
---|
698 | DO j = nys, nyn |
---|
699 | DO k = nzb_do, nzt_do |
---|
700 | local_pf(i,j,k) = pcm_transpirationrate_av(k,j,i) |
---|
701 | ENDDO |
---|
702 | ENDDO |
---|
703 | ENDDO |
---|
704 | ENDIF |
---|
705 | |
---|
706 | CASE ( 'pcm_bowenratio' ) |
---|
707 | IF ( av == 0 ) THEN |
---|
708 | DO i = nxl, nxr |
---|
709 | DO j = nys, nyn |
---|
710 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
711 | DO k = nzb_do, nzt_do |
---|
712 | IF ( pc_latent_rate(k,j,i) /= 0._wp ) THEN |
---|
713 | local_pf(i,j,k) = pc_heating_rate(k,j,i) / & |
---|
714 | pc_latent_rate(k,j,i) |
---|
715 | ENDIF |
---|
716 | ENDDO |
---|
717 | ENDIF |
---|
718 | ENDDO |
---|
719 | ENDDO |
---|
720 | ENDIF |
---|
721 | |
---|
722 | CASE ( 'pcm_lad' ) |
---|
723 | IF ( av == 0 ) THEN |
---|
724 | DO i = nxl, nxr |
---|
725 | DO j = nys, nyn |
---|
726 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
727 | DO k = nzb_do, nzt_do |
---|
728 | local_pf(i,j,k) = lad_s(k,j,i) |
---|
729 | ENDDO |
---|
730 | ENDIF |
---|
731 | ENDDO |
---|
732 | ENDDO |
---|
733 | ENDIF |
---|
734 | |
---|
735 | CASE DEFAULT |
---|
736 | found = .FALSE. |
---|
737 | |
---|
738 | END SELECT |
---|
739 | |
---|
740 | |
---|
741 | END SUBROUTINE pcm_data_output_3d |
---|
742 | |
---|
743 | !------------------------------------------------------------------------------! |
---|
744 | ! |
---|
745 | ! Description: |
---|
746 | ! ------------ |
---|
747 | !> Subroutine defining appropriate grid for netcdf variables. |
---|
748 | !> It is called from subroutine netcdf. |
---|
749 | !------------------------------------------------------------------------------! |
---|
750 | SUBROUTINE pcm_define_netcdf_grid( var, found, grid_x, grid_y, grid_z ) |
---|
751 | |
---|
752 | IMPLICIT NONE |
---|
753 | |
---|
754 | CHARACTER (LEN=*), INTENT(IN) :: var !< |
---|
755 | LOGICAL, INTENT(OUT) :: found !< |
---|
756 | CHARACTER (LEN=*), INTENT(OUT) :: grid_x !< |
---|
757 | CHARACTER (LEN=*), INTENT(OUT) :: grid_y !< |
---|
758 | CHARACTER (LEN=*), INTENT(OUT) :: grid_z !< |
---|
759 | |
---|
760 | found = .TRUE. |
---|
761 | |
---|
762 | ! |
---|
763 | !-- Check for the grid |
---|
764 | SELECT CASE ( TRIM( var ) ) |
---|
765 | |
---|
766 | CASE ( 'pcm_heatrate', 'pcm_lad', 'pcm_transpirationrate', 'pcm_latentrate', 'pcm_bowenratio') |
---|
767 | grid_x = 'x' |
---|
768 | grid_y = 'y' |
---|
769 | grid_z = 'zpc' |
---|
770 | |
---|
771 | CASE DEFAULT |
---|
772 | found = .FALSE. |
---|
773 | grid_x = 'none' |
---|
774 | grid_y = 'none' |
---|
775 | grid_z = 'none' |
---|
776 | END SELECT |
---|
777 | |
---|
778 | END SUBROUTINE pcm_define_netcdf_grid |
---|
779 | |
---|
780 | |
---|
781 | !------------------------------------------------------------------------------! |
---|
782 | ! Description: |
---|
783 | ! ------------ |
---|
784 | !> Header output for plant canopy model |
---|
785 | !------------------------------------------------------------------------------! |
---|
786 | SUBROUTINE pcm_header ( io ) |
---|
787 | |
---|
788 | USE control_parameters, & |
---|
789 | ONLY: passive_scalar |
---|
790 | |
---|
791 | |
---|
792 | IMPLICIT NONE |
---|
793 | |
---|
794 | CHARACTER (LEN=10) :: coor_chr !< |
---|
795 | |
---|
796 | CHARACTER (LEN=86) :: coordinates !< |
---|
797 | CHARACTER (LEN=86) :: gradients !< |
---|
798 | CHARACTER (LEN=86) :: leaf_area_density !< |
---|
799 | CHARACTER (LEN=86) :: slices !< |
---|
800 | |
---|
801 | INTEGER(iwp) :: i !< |
---|
802 | INTEGER(iwp), INTENT(IN) :: io !< Unit of the output file |
---|
803 | INTEGER(iwp) :: k !< |
---|
804 | |
---|
805 | REAL(wp) :: canopy_height !< canopy height (in m) |
---|
806 | |
---|
807 | canopy_height = zw(pch_index) |
---|
808 | |
---|
809 | WRITE ( io, 1 ) canopy_mode, canopy_height, pch_index, & |
---|
810 | canopy_drag_coeff |
---|
811 | IF ( passive_scalar ) THEN |
---|
812 | WRITE ( io, 2 ) leaf_scalar_exch_coeff, & |
---|
813 | leaf_surface_conc |
---|
814 | ENDIF |
---|
815 | |
---|
816 | ! |
---|
817 | !-- Heat flux at the top of vegetation |
---|
818 | WRITE ( io, 3 ) cthf |
---|
819 | |
---|
820 | ! |
---|
821 | !-- Leaf area density profile, calculated either from given vertical |
---|
822 | !-- gradients or from beta probability density function. |
---|
823 | IF ( .NOT. calc_beta_lad_profile ) THEN |
---|
824 | |
---|
825 | !-- Building output strings, starting with surface value |
---|
826 | WRITE ( leaf_area_density, '(F7.4)' ) lad_surface |
---|
827 | gradients = '------' |
---|
828 | slices = ' 0' |
---|
829 | coordinates = ' 0.0' |
---|
830 | i = 1 |
---|
831 | DO WHILE ( i < 11 .AND. lad_vertical_gradient_level_ind(i) & |
---|
832 | /= -9999 ) |
---|
833 | |
---|
834 | WRITE (coor_chr,'(F7.2)') lad(lad_vertical_gradient_level_ind(i)) |
---|
835 | leaf_area_density = TRIM( leaf_area_density ) // ' ' // & |
---|
836 | TRIM( coor_chr ) |
---|
837 | |
---|
838 | WRITE (coor_chr,'(F7.2)') lad_vertical_gradient(i) |
---|
839 | gradients = TRIM( gradients ) // ' ' // TRIM( coor_chr ) |
---|
840 | |
---|
841 | WRITE (coor_chr,'(I7)') lad_vertical_gradient_level_ind(i) |
---|
842 | slices = TRIM( slices ) // ' ' // TRIM( coor_chr ) |
---|
843 | |
---|
844 | WRITE (coor_chr,'(F7.1)') lad_vertical_gradient_level(i) |
---|
845 | coordinates = TRIM( coordinates ) // ' ' // TRIM( coor_chr ) |
---|
846 | |
---|
847 | i = i + 1 |
---|
848 | ENDDO |
---|
849 | |
---|
850 | WRITE ( io, 4 ) TRIM( coordinates ), TRIM( leaf_area_density ), & |
---|
851 | TRIM( gradients ), TRIM( slices ) |
---|
852 | |
---|
853 | ELSE |
---|
854 | |
---|
855 | WRITE ( leaf_area_density, '(F7.4)' ) lad_surface |
---|
856 | coordinates = ' 0.0' |
---|
857 | |
---|
858 | DO k = 1, pch_index |
---|
859 | |
---|
860 | WRITE (coor_chr,'(F7.2)') lad(k) |
---|
861 | leaf_area_density = TRIM( leaf_area_density ) // ' ' // & |
---|
862 | TRIM( coor_chr ) |
---|
863 | |
---|
864 | WRITE (coor_chr,'(F7.1)') zu(k) |
---|
865 | coordinates = TRIM( coordinates ) // ' ' // TRIM( coor_chr ) |
---|
866 | |
---|
867 | ENDDO |
---|
868 | |
---|
869 | WRITE ( io, 5 ) TRIM( coordinates ), TRIM( leaf_area_density ), & |
---|
870 | alpha_lad, beta_lad, lai_beta |
---|
871 | |
---|
872 | ENDIF |
---|
873 | |
---|
874 | 1 FORMAT (//' Vegetation canopy (drag) model:'/ & |
---|
875 | ' ------------------------------'// & |
---|
876 | ' Canopy mode: ', A / & |
---|
877 | ' Canopy height: ',F6.2,'m (',I4,' grid points)' / & |
---|
878 | ' Leaf drag coefficient: ',F6.2 /) |
---|
879 | 2 FORMAT (/ ' Scalar exchange coefficient: ',F6.2 / & |
---|
880 | ' Scalar concentration at leaf surfaces in kg/m**3: ',F6.2 /) |
---|
881 | 3 FORMAT (' Predefined constant heatflux at the top of the vegetation: ',F6.2, & |
---|
882 | ' K m/s') |
---|
883 | 4 FORMAT (/ ' Characteristic levels of the leaf area density:'// & |
---|
884 | ' Height: ',A,' m'/ & |
---|
885 | ' Leaf area density: ',A,' m**2/m**3'/ & |
---|
886 | ' Gradient: ',A,' m**2/m**4'/ & |
---|
887 | ' Gridpoint: ',A) |
---|
888 | 5 FORMAT (//' Characteristic levels of the leaf area density and coefficients:'& |
---|
889 | // ' Height: ',A,' m'/ & |
---|
890 | ' Leaf area density: ',A,' m**2/m**3'/ & |
---|
891 | ' Coefficient alpha: ',F6.2 / & |
---|
892 | ' Coefficient beta: ',F6.2 / & |
---|
893 | ' Leaf area index: ',F6.2,' m**2/m**2' /) |
---|
894 | |
---|
895 | END SUBROUTINE pcm_header |
---|
896 | |
---|
897 | |
---|
898 | !------------------------------------------------------------------------------! |
---|
899 | ! Description: |
---|
900 | ! ------------ |
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901 | !> Initialization of the plant canopy model |
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902 | !------------------------------------------------------------------------------! |
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903 | SUBROUTINE pcm_init |
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904 | |
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905 | |
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906 | USE control_parameters, & |
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907 | ONLY: message_string, ocean_mode |
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908 | |
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909 | USE netcdf_data_input_mod, & |
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910 | ONLY: leaf_area_density_f |
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911 | |
---|
912 | USE surface_mod, & |
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913 | ONLY: surf_def_h, surf_lsm_h, surf_usm_h |
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914 | |
---|
915 | IMPLICIT NONE |
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916 | |
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917 | INTEGER(iwp) :: i !< running index |
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918 | INTEGER(iwp) :: j !< running index |
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919 | INTEGER(iwp) :: k !< running index |
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920 | INTEGER(iwp) :: m !< running index |
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921 | |
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922 | REAL(wp) :: int_bpdf !< vertical integral for lad-profile construction |
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923 | REAL(wp) :: gradient !< gradient for lad-profile construction |
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924 | REAL(wp) :: canopy_height !< canopy height for lad-profile construction |
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925 | |
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926 | IF ( debug_output ) CALL debug_message( 'pcm_init', 'start' ) |
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927 | ! |
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928 | !-- Allocate one-dimensional arrays for the computation of the |
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929 | !-- leaf area density (lad) profile |
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930 | ALLOCATE( lad(0:nz+1), pre_lad(0:nz+1) ) |
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931 | lad = 0.0_wp |
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932 | pre_lad = 0.0_wp |
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933 | |
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934 | ! |
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935 | !-- Set flag that indicates that the lad-profile shall be calculated by using |
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936 | !-- a beta probability density function |
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937 | IF ( alpha_lad /= 9999999.9_wp .AND. beta_lad /= 9999999.9_wp ) THEN |
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938 | calc_beta_lad_profile = .TRUE. |
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939 | ENDIF |
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940 | |
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941 | |
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942 | ! |
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943 | !-- Compute the profile of leaf area density used in the plant |
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944 | !-- canopy model. The profile can either be constructed from |
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945 | !-- prescribed vertical gradients of the leaf area density or by |
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946 | !-- using a beta probability density function (see e.g. Markkanen et al., |
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947 | !-- 2003: Boundary-Layer Meteorology, 106, 437-459) |
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948 | IF ( .NOT. calc_beta_lad_profile ) THEN |
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949 | |
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950 | ! |
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951 | !-- Use vertical gradients for lad-profile construction |
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952 | i = 1 |
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953 | gradient = 0.0_wp |
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954 | |
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955 | IF ( .NOT. ocean_mode ) THEN |
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956 | |
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957 | lad(0) = lad_surface |
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958 | lad_vertical_gradient_level_ind(1) = 0 |
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959 | |
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960 | DO k = 1, pch_index |
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961 | IF ( i < 11 ) THEN |
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962 | IF ( lad_vertical_gradient_level(i) < zu(k) .AND. & |
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963 | lad_vertical_gradient_level(i) >= 0.0_wp ) THEN |
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964 | gradient = lad_vertical_gradient(i) |
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965 | lad_vertical_gradient_level_ind(i) = k - 1 |
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966 | i = i + 1 |
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967 | ENDIF |
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968 | ENDIF |
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969 | IF ( gradient /= 0.0_wp ) THEN |
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970 | IF ( k /= 1 ) THEN |
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971 | lad(k) = lad(k-1) + dzu(k) * gradient |
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972 | ELSE |
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973 | lad(k) = lad_surface + dzu(k) * gradient |
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974 | ENDIF |
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975 | ELSE |
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976 | lad(k) = lad(k-1) |
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977 | ENDIF |
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978 | ENDDO |
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979 | |
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980 | ENDIF |
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981 | |
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982 | ! |
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983 | !-- In case of no given leaf area density gradients, choose a vanishing |
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984 | !-- gradient. This information is used for the HEADER and the RUN_CONTROL |
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985 | !-- file. |
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986 | IF ( lad_vertical_gradient_level(1) == -9999999.9_wp ) THEN |
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987 | lad_vertical_gradient_level(1) = 0.0_wp |
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988 | ENDIF |
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989 | |
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990 | ELSE |
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991 | |
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992 | ! |
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993 | !-- Use beta function for lad-profile construction |
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994 | int_bpdf = 0.0_wp |
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995 | canopy_height = zw(pch_index) |
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996 | |
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997 | DO k = 0, pch_index |
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998 | int_bpdf = int_bpdf + & |
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999 | ( ( ( zw(k) / canopy_height )**( alpha_lad-1.0_wp ) ) * & |
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1000 | ( ( 1.0_wp - ( zw(k) / canopy_height ) )**( & |
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1001 | beta_lad-1.0_wp ) ) & |
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1002 | * ( ( zw(k+1)-zw(k) ) / canopy_height ) ) |
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1003 | ENDDO |
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1004 | |
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1005 | ! |
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1006 | !-- Preliminary lad profile (defined on w-grid) |
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1007 | DO k = 0, pch_index |
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1008 | pre_lad(k) = lai_beta * & |
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1009 | ( ( ( zw(k) / canopy_height )**( alpha_lad-1.0_wp ) ) & |
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1010 | * ( ( 1.0_wp - ( zw(k) / canopy_height ) )**( & |
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1011 | beta_lad-1.0_wp ) ) / int_bpdf & |
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1012 | ) / canopy_height |
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1013 | ENDDO |
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1014 | |
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1015 | ! |
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1016 | !-- Final lad profile (defined on scalar-grid level, since most prognostic |
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1017 | !-- quantities are defined there, hence, less interpolation is required |
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1018 | !-- when calculating the canopy tendencies) |
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1019 | lad(0) = pre_lad(0) |
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1020 | DO k = 1, pch_index |
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1021 | lad(k) = 0.5 * ( pre_lad(k-1) + pre_lad(k) ) |
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1022 | ENDDO |
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1023 | |
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1024 | ENDIF |
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1025 | |
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1026 | ! |
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1027 | !-- Allocate 3D-array for the leaf area density (lad_s). |
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1028 | ALLOCATE( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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1029 | |
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1030 | ! |
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1031 | !-- Initialize canopy parameters cdc (canopy drag coefficient), |
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1032 | !-- lsec (leaf scalar exchange coefficient), lsc (leaf surface concentration) |
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1033 | !-- with the prescribed values |
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1034 | cdc = canopy_drag_coeff |
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1035 | lsec = leaf_scalar_exch_coeff |
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1036 | lsc = leaf_surface_conc |
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1037 | |
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1038 | ! |
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1039 | !-- Initialization of the canopy coverage in the model domain: |
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1040 | !-- Setting the parameter canopy_mode = 'block' initializes a canopy, which |
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1041 | !-- fully covers the domain surface |
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1042 | SELECT CASE ( TRIM( canopy_mode ) ) |
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1043 | |
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1044 | CASE( 'block' ) |
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1045 | |
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1046 | DO i = nxlg, nxrg |
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1047 | DO j = nysg, nyng |
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1048 | lad_s(:,j,i) = lad(:) |
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1049 | ENDDO |
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1050 | ENDDO |
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1051 | |
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1052 | CASE ( 'read_from_file_3d' ) |
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1053 | ! |
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1054 | !-- Initialize LAD with data from file. If LAD is given in NetCDF file, |
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1055 | !-- use these values, else take LAD profiles from ASCII file. |
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1056 | !-- Please note, in NetCDF file LAD is only given up to the maximum |
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1057 | !-- canopy top, indicated by leaf_area_density_f%nz. |
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1058 | lad_s = 0.0_wp |
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1059 | IF ( leaf_area_density_f%from_file ) THEN |
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1060 | ! |
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1061 | !-- Set also pch_index, used to be the upper bound of the vertical |
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1062 | !-- loops. Therefore, use the global top of the canopy layer. |
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1063 | pch_index = leaf_area_density_f%nz - 1 |
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1064 | |
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1065 | DO i = nxl, nxr |
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1066 | DO j = nys, nyn |
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1067 | DO k = 0, leaf_area_density_f%nz - 1 |
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1068 | IF ( leaf_area_density_f%var(k,j,i) /= & |
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1069 | leaf_area_density_f%fill ) & |
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1070 | lad_s(k,j,i) = leaf_area_density_f%var(k,j,i) |
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1071 | ENDDO |
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1072 | ENDDO |
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1073 | ENDDO |
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1074 | |
---|
1075 | CALL exchange_horiz( lad_s, nbgp ) |
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1076 | ! |
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1077 | ! ASCII file |
---|
1078 | !-- Initialize canopy parameters cdc (canopy drag coefficient), |
---|
1079 | !-- lsec (leaf scalar exchange coefficient), lsc (leaf surface concentration) |
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1080 | !-- from file which contains complete 3D data (separate vertical profiles for |
---|
1081 | !-- each location). |
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1082 | ELSE |
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1083 | CALL pcm_read_plant_canopy_3d |
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1084 | ENDIF |
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1085 | |
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1086 | CASE DEFAULT |
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1087 | ! |
---|
1088 | !-- The DEFAULT case is reached either if the parameter |
---|
1089 | !-- canopy mode contains a wrong character string or if the |
---|
1090 | !-- user has coded a special case in the user interface. |
---|
1091 | !-- There, the subroutine user_init_plant_canopy checks |
---|
1092 | !-- which of these two conditions applies. |
---|
1093 | CALL user_init_plant_canopy |
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1094 | |
---|
1095 | END SELECT |
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1096 | ! |
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1097 | !-- Initialize 2D index array indicating canopy top index. |
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1098 | ALLOCATE( pch_index_ji(nysg:nyng,nxlg:nxrg) ) |
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1099 | pch_index_ji = 0 |
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1100 | |
---|
1101 | DO i = nxl, nxr |
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1102 | DO j = nys, nyn |
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1103 | DO k = 0, pch_index |
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1104 | IF ( lad_s(k,j,i) /= 0 ) pch_index_ji(j,i) = k |
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1105 | ENDDO |
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1106 | ! |
---|
1107 | !-- Check whether topography and local vegetation on top exceed |
---|
1108 | !-- height of the model domain. |
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1109 | k = topo_top_ind(j,i,0) |
---|
1110 | IF ( k + pch_index_ji(j,i) >= nzt + 1 ) THEN |
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1111 | message_string = 'Local vegetation height on top of ' // & |
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1112 | 'topography exceeds height of model domain.' |
---|
1113 | CALL message( 'pcm_init', 'PA0674', 2, 2, 0, 6, 0 ) |
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1114 | ENDIF |
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1115 | |
---|
1116 | ENDDO |
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1117 | ENDDO |
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1118 | |
---|
1119 | CALL exchange_horiz_2d_int( pch_index_ji, nys, nyn, nxl, nxr, nbgp ) |
---|
1120 | ! |
---|
1121 | !-- Calculate global pch_index value (index of top of plant canopy from ground) |
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1122 | pch_index = MAXVAL( pch_index_ji ) |
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1123 | |
---|
1124 | |
---|
1125 | ! |
---|
1126 | !-- Exchange pch_index from all processors |
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1127 | #if defined( __parallel ) |
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1128 | CALL MPI_ALLREDUCE( MPI_IN_PLACE, pch_index, 1, MPI_INTEGER, & |
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1129 | MPI_MAX, comm2d, ierr) |
---|
1130 | #endif |
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1131 | |
---|
1132 | !-- Allocation of arrays pc_heating_rate, pc_transpiration_rate and pc_latent_rate |
---|
1133 | ALLOCATE( pc_heating_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
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1134 | IF ( humidity ) THEN |
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1135 | ALLOCATE( pc_transpiration_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
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1136 | pc_transpiration_rate = 0.0_wp |
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1137 | ALLOCATE( pc_latent_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
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1138 | pc_latent_rate = 0.0_wp |
---|
1139 | ENDIF |
---|
1140 | ! |
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1141 | !-- Initialization of the canopy heat source distribution due to heating |
---|
1142 | !-- of the canopy layers by incoming solar radiation, in case that a non-zero |
---|
1143 | !-- value is set for the canopy top heat flux (cthf), which equals the |
---|
1144 | !-- available net radiation at canopy top. |
---|
1145 | !-- The heat source distribution is calculated by a decaying exponential |
---|
1146 | !-- function of the downward cumulative leaf area index (cum_lai_hf), |
---|
1147 | !-- assuming that the foliage inside the plant canopy is heated by solar |
---|
1148 | !-- radiation penetrating the canopy layers according to the distribution |
---|
1149 | !-- of net radiation as suggested by Brown & Covey (1966; Agric. Meteorol. 3, |
---|
1150 | !-- 73â96). This approach has been applied e.g. by Shaw & Schumann (1992; |
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1151 | !-- Bound.-Layer Meteorol. 61, 47â64). |
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1152 | !-- When using the radiation_interactions, canopy heating (pc_heating_rate) |
---|
1153 | !-- and plant canopy transpiration (pc_transpiration_rate, pc_latent_rate) |
---|
1154 | !-- are calculated in the RTM after the calculation of radiation. |
---|
1155 | !-- We cannot use variable radiation_interactions here to determine the situation |
---|
1156 | !-- as it is assigned in init_3d_model after the call of pcm_init. |
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1157 | IF ( cthf /= 0.0_wp ) THEN |
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1158 | |
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1159 | ALLOCATE( cum_lai_hf(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
1160 | ! |
---|
1161 | !-- Piecewise calculation of the cumulative leaf area index by vertical |
---|
1162 | !-- integration of the leaf area density |
---|
1163 | cum_lai_hf(:,:,:) = 0.0_wp |
---|
1164 | DO i = nxlg, nxrg |
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1165 | DO j = nysg, nyng |
---|
1166 | DO k = pch_index_ji(j,i)-1, 0, -1 |
---|
1167 | IF ( k == pch_index_ji(j,i)-1 ) THEN |
---|
1168 | cum_lai_hf(k,j,i) = cum_lai_hf(k+1,j,i) + & |
---|
1169 | ( 0.5_wp * lad_s(k+1,j,i) * & |
---|
1170 | ( zw(k+1) - zu(k+1) ) ) + & |
---|
1171 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+1,j,i) + & |
---|
1172 | lad_s(k,j,i) ) + & |
---|
1173 | lad_s(k+1,j,i) ) * & |
---|
1174 | ( zu(k+1) - zw(k) ) ) |
---|
1175 | ELSE |
---|
1176 | cum_lai_hf(k,j,i) = cum_lai_hf(k+1,j,i) + & |
---|
1177 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+2,j,i) + & |
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1178 | lad_s(k+1,j,i) ) + & |
---|
1179 | lad_s(k+1,j,i) ) * & |
---|
1180 | ( zw(k+1) - zu(k+1) ) ) + & |
---|
1181 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+1,j,i) + & |
---|
1182 | lad_s(k,j,i) ) + & |
---|
1183 | lad_s(k+1,j,i) ) * & |
---|
1184 | ( zu(k+1) - zw(k) ) ) |
---|
1185 | ENDIF |
---|
1186 | ENDDO |
---|
1187 | ENDDO |
---|
1188 | ENDDO |
---|
1189 | |
---|
1190 | ! |
---|
1191 | !-- In areas with canopy the surface value of the canopy heat |
---|
1192 | !-- flux distribution overrides the surface heat flux (shf) |
---|
1193 | !-- Start with default surface type |
---|
1194 | DO m = 1, surf_def_h(0)%ns |
---|
1195 | k = surf_def_h(0)%k(m) |
---|
1196 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1197 | surf_def_h(0)%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1198 | ENDDO |
---|
1199 | ! |
---|
1200 | !-- Natural surfaces |
---|
1201 | DO m = 1, surf_lsm_h%ns |
---|
1202 | k = surf_lsm_h%k(m) |
---|
1203 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1204 | surf_lsm_h%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1205 | ENDDO |
---|
1206 | ! |
---|
1207 | !-- Urban surfaces |
---|
1208 | DO m = 1, surf_usm_h%ns |
---|
1209 | k = surf_usm_h%k(m) |
---|
1210 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1211 | surf_usm_h%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1212 | ENDDO |
---|
1213 | ! |
---|
1214 | ! |
---|
1215 | !-- Calculation of the heating rate (K/s) within the different layers of |
---|
1216 | !-- the plant canopy. Calculation is only necessary in areas covered with |
---|
1217 | !-- canopy. |
---|
1218 | !-- Within the different canopy layers the plant-canopy heating |
---|
1219 | !-- rate (pc_heating_rate) is calculated as the vertical |
---|
1220 | !-- divergence of the canopy heat fluxes at the top and bottom |
---|
1221 | !-- of the respective layer |
---|
1222 | DO i = nxlg, nxrg |
---|
1223 | DO j = nysg, nyng |
---|
1224 | DO k = 1, pch_index_ji(j,i) |
---|
1225 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) THEN |
---|
1226 | pc_heating_rate(k,j,i) = cthf * & |
---|
1227 | ( exp(-ext_coef*cum_lai_hf(k,j,i)) - & |
---|
1228 | exp(-ext_coef*cum_lai_hf(k-1,j,i) ) ) / dzw(k) |
---|
1229 | ENDIF |
---|
1230 | ENDDO |
---|
1231 | ENDDO |
---|
1232 | ENDDO |
---|
1233 | |
---|
1234 | ENDIF |
---|
1235 | |
---|
1236 | IF ( debug_output ) CALL debug_message( 'pcm_init', 'end' ) |
---|
1237 | |
---|
1238 | |
---|
1239 | END SUBROUTINE pcm_init |
---|
1240 | |
---|
1241 | |
---|
1242 | !------------------------------------------------------------------------------! |
---|
1243 | ! Description: |
---|
1244 | ! ------------ |
---|
1245 | !> Parin for &plant_canopy_parameters for plant canopy model |
---|
1246 | !------------------------------------------------------------------------------! |
---|
1247 | SUBROUTINE pcm_parin |
---|
1248 | |
---|
1249 | USE control_parameters, & |
---|
1250 | ONLY: message_string, plant_canopy |
---|
1251 | |
---|
1252 | IMPLICIT NONE |
---|
1253 | |
---|
1254 | CHARACTER (LEN=80) :: line !< dummy string that contains the current line of the parameter file |
---|
1255 | |
---|
1256 | NAMELIST /plant_canopy_parameters/ & |
---|
1257 | alpha_lad, beta_lad, canopy_drag_coeff, & |
---|
1258 | canopy_mode, cthf, & |
---|
1259 | lad_surface, lad_type_coef, & |
---|
1260 | lad_vertical_gradient, & |
---|
1261 | lad_vertical_gradient_level, & |
---|
1262 | lai_beta, & |
---|
1263 | leaf_scalar_exch_coeff, & |
---|
1264 | leaf_surface_conc, pch_index, & |
---|
1265 | plant_canopy_transpiration |
---|
1266 | |
---|
1267 | NAMELIST /canopy_par/ alpha_lad, beta_lad, canopy_drag_coeff, & |
---|
1268 | canopy_mode, cthf, & |
---|
1269 | lad_surface, lad_type_coef, & |
---|
1270 | lad_vertical_gradient, & |
---|
1271 | lad_vertical_gradient_level, & |
---|
1272 | lai_beta, & |
---|
1273 | leaf_scalar_exch_coeff, & |
---|
1274 | leaf_surface_conc, pch_index, & |
---|
1275 | plant_canopy_transpiration |
---|
1276 | |
---|
1277 | line = ' ' |
---|
1278 | |
---|
1279 | ! |
---|
1280 | !-- Try to find radiation model package |
---|
1281 | REWIND ( 11 ) |
---|
1282 | line = ' ' |
---|
1283 | DO WHILE ( INDEX( line, '&plant_canopy_parameters' ) == 0 ) |
---|
1284 | READ ( 11, '(A)', END=12 ) line |
---|
1285 | ENDDO |
---|
1286 | BACKSPACE ( 11 ) |
---|
1287 | |
---|
1288 | ! |
---|
1289 | !-- Read user-defined namelist |
---|
1290 | READ ( 11, plant_canopy_parameters, ERR = 10 ) |
---|
1291 | |
---|
1292 | ! |
---|
1293 | !-- Set flag that indicates that the radiation model is switched on |
---|
1294 | plant_canopy = .TRUE. |
---|
1295 | |
---|
1296 | GOTO 14 |
---|
1297 | |
---|
1298 | 10 BACKSPACE( 11 ) |
---|
1299 | READ( 11 , '(A)') line |
---|
1300 | CALL parin_fail_message( 'plant_canopy_parameters', line ) |
---|
1301 | ! |
---|
1302 | !-- Try to find old namelist |
---|
1303 | 12 REWIND ( 11 ) |
---|
1304 | line = ' ' |
---|
1305 | DO WHILE ( INDEX( line, '&canopy_par' ) == 0 ) |
---|
1306 | READ ( 11, '(A)', END=14 ) line |
---|
1307 | ENDDO |
---|
1308 | BACKSPACE ( 11 ) |
---|
1309 | |
---|
1310 | ! |
---|
1311 | !-- Read user-defined namelist |
---|
1312 | READ ( 11, canopy_par, ERR = 13, END = 14 ) |
---|
1313 | |
---|
1314 | message_string = 'namelist canopy_par is deprecated and will be ' // & |
---|
1315 | 'removed in near future. Please use namelist ' // & |
---|
1316 | 'plant_canopy_parameters instead' |
---|
1317 | CALL message( 'pcm_parin', 'PA0487', 0, 1, 0, 6, 0 ) |
---|
1318 | |
---|
1319 | ! |
---|
1320 | !-- Set flag that indicates that the radiation model is switched on |
---|
1321 | plant_canopy = .TRUE. |
---|
1322 | |
---|
1323 | GOTO 14 |
---|
1324 | |
---|
1325 | 13 BACKSPACE( 11 ) |
---|
1326 | READ( 11 , '(A)') line |
---|
1327 | CALL parin_fail_message( 'canopy_par', line ) |
---|
1328 | |
---|
1329 | 14 CONTINUE |
---|
1330 | |
---|
1331 | |
---|
1332 | END SUBROUTINE pcm_parin |
---|
1333 | |
---|
1334 | |
---|
1335 | |
---|
1336 | !------------------------------------------------------------------------------! |
---|
1337 | ! Description: |
---|
1338 | ! ------------ |
---|
1339 | ! |
---|
1340 | !> Loads 3D plant canopy data from file. File format is as follows: |
---|
1341 | !> |
---|
1342 | !> num_levels |
---|
1343 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1344 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1345 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1346 | !> ... |
---|
1347 | !> |
---|
1348 | !> i.e. first line determines number of levels and further lines represent plant |
---|
1349 | !> canopy data, one line per column and variable. In each data line, |
---|
1350 | !> dtype represents variable to be set: |
---|
1351 | !> |
---|
1352 | !> dtype=1: leaf area density (lad_s) |
---|
1353 | !> dtype=2....n: some additional plant canopy input data quantity |
---|
1354 | !> |
---|
1355 | !> Zeros are added automatically above num_levels until top of domain. Any |
---|
1356 | !> non-specified (x,y) columns have zero values as default. |
---|
1357 | !------------------------------------------------------------------------------! |
---|
1358 | SUBROUTINE pcm_read_plant_canopy_3d |
---|
1359 | |
---|
1360 | USE control_parameters, & |
---|
1361 | ONLY: coupling_char, message_string |
---|
1362 | |
---|
1363 | USE indices, & |
---|
1364 | ONLY: nbgp |
---|
1365 | |
---|
1366 | IMPLICIT NONE |
---|
1367 | |
---|
1368 | INTEGER(iwp) :: dtype !< type of input data (1=lad) |
---|
1369 | INTEGER(iwp) :: pctype !< type of plant canopy (deciduous,non-deciduous,...) |
---|
1370 | INTEGER(iwp) :: i, j !< running index |
---|
1371 | INTEGER(iwp) :: nzp !< number of vertical layers of plant canopy |
---|
1372 | INTEGER(iwp) :: nzpltop !< |
---|
1373 | INTEGER(iwp) :: nzpl !< |
---|
1374 | INTEGER(iwp) :: kk !< |
---|
1375 | |
---|
1376 | REAL(wp), DIMENSION(:), ALLOCATABLE :: col !< vertical column of input data |
---|
1377 | |
---|
1378 | ! |
---|
1379 | !-- Initialize lad_s array |
---|
1380 | lad_s = 0.0_wp |
---|
1381 | |
---|
1382 | ! |
---|
1383 | !-- Open and read plant canopy input data |
---|
1384 | OPEN(152, FILE='PLANT_CANOPY_DATA_3D' // TRIM( coupling_char ), & |
---|
1385 | ACCESS='SEQUENTIAL', ACTION='READ', STATUS='OLD', & |
---|
1386 | FORM='FORMATTED', ERR=515) |
---|
1387 | READ(152, *, ERR=516, END=517) nzp !< read first line = number of vertical layers |
---|
1388 | nzpltop = MIN(nzt+1, nzb+nzp-1) |
---|
1389 | nzpl = nzpltop - nzb + 1 !< no. of layers to assign |
---|
1390 | ALLOCATE( col(0:nzp-1) ) |
---|
1391 | |
---|
1392 | DO |
---|
1393 | READ(152, *, ERR=516, END=517) dtype, i, j, pctype, col(:) |
---|
1394 | IF ( i < nxlg .OR. i > nxrg .OR. j < nysg .OR. j > nyng ) CYCLE |
---|
1395 | |
---|
1396 | SELECT CASE (dtype) |
---|
1397 | CASE( 1 ) !< leaf area density |
---|
1398 | ! |
---|
1399 | !-- This is just the pure canopy layer assumed to be grounded to |
---|
1400 | !-- a flat domain surface. At locations where plant canopy sits |
---|
1401 | !-- on top of any kind of topography, the vertical plant column |
---|
1402 | !-- must be "lifted", which is done in SUBROUTINE pcm_tendency. |
---|
1403 | IF ( pctype < 0 .OR. pctype > 10 ) THEN !< incorrect plant canopy type |
---|
1404 | WRITE( message_string, * ) 'Incorrect type of plant canopy. ' // & |
---|
1405 | 'Allowed values 0 <= pctype <= 10, ' // & |
---|
1406 | 'but pctype is ', pctype |
---|
1407 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0349', 1, 2, 0, 6, 0 ) |
---|
1408 | ENDIF |
---|
1409 | kk = topo_top_ind(j,i,0) |
---|
1410 | lad_s(nzb:nzpltop-kk, j, i) = col(kk:nzpl-1)*lad_type_coef(pctype) |
---|
1411 | CASE DEFAULT |
---|
1412 | WRITE(message_string, '(a,i2,a)') & |
---|
1413 | 'Unknown record type in file PLANT_CANOPY_DATA_3D: "', dtype, '"' |
---|
1414 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0530', 1, 2, 0, 6, 0 ) |
---|
1415 | END SELECT |
---|
1416 | ENDDO |
---|
1417 | |
---|
1418 | 515 message_string = 'error opening file PLANT_CANOPY_DATA_3D' |
---|
1419 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0531', 1, 2, 0, 6, 0 ) |
---|
1420 | |
---|
1421 | 516 message_string = 'error reading file PLANT_CANOPY_DATA_3D' |
---|
1422 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0532', 1, 2, 0, 6, 0 ) |
---|
1423 | |
---|
1424 | 517 CLOSE(152) |
---|
1425 | DEALLOCATE( col ) |
---|
1426 | |
---|
1427 | CALL exchange_horiz( lad_s, nbgp ) |
---|
1428 | |
---|
1429 | END SUBROUTINE pcm_read_plant_canopy_3d |
---|
1430 | |
---|
1431 | |
---|
1432 | |
---|
1433 | !------------------------------------------------------------------------------! |
---|
1434 | ! Description: |
---|
1435 | ! ------------ |
---|
1436 | !> Calculation of the tendency terms, accounting for the effect of the plant |
---|
1437 | !> canopy on momentum and scalar quantities. |
---|
1438 | !> |
---|
1439 | !> The canopy is located where the leaf area density lad_s(k,j,i) > 0.0 |
---|
1440 | !> (defined on scalar grid), as initialized in subroutine pcm_init. |
---|
1441 | !> The lad on the w-grid is vertically interpolated from the surrounding |
---|
1442 | !> lad_s. The upper boundary of the canopy is defined on the w-grid at |
---|
1443 | !> k = pch_index. Here, the lad is zero. |
---|
1444 | !> |
---|
1445 | !> The canopy drag must be limited (previously accounted for by calculation of |
---|
1446 | !> a limiting canopy timestep for the determination of the maximum LES timestep |
---|
1447 | !> in subroutine timestep), since it is physically impossible that the canopy |
---|
1448 | !> drag alone can locally change the sign of a velocity component. This |
---|
1449 | !> limitation is realized by calculating preliminary tendencies and velocities. |
---|
1450 | !> It is subsequently checked if the preliminary new velocity has a different |
---|
1451 | !> sign than the current velocity. If so, the tendency is limited in a way that |
---|
1452 | !> the velocity can at maximum be reduced to zero by the canopy drag. |
---|
1453 | !> |
---|
1454 | !> |
---|
1455 | !> Call for all grid points |
---|
1456 | !------------------------------------------------------------------------------! |
---|
1457 | SUBROUTINE pcm_tendency( component ) |
---|
1458 | |
---|
1459 | |
---|
1460 | USE control_parameters, & |
---|
1461 | ONLY: dt_3d, message_string |
---|
1462 | |
---|
1463 | USE kinds |
---|
1464 | |
---|
1465 | IMPLICIT NONE |
---|
1466 | |
---|
1467 | INTEGER(iwp) :: component !< prognostic variable (u,v,w,pt,q,e) |
---|
1468 | INTEGER(iwp) :: i !< running index |
---|
1469 | INTEGER(iwp) :: j !< running index |
---|
1470 | INTEGER(iwp) :: k !< running index |
---|
1471 | INTEGER(iwp) :: k_wall !< vertical index of topography top |
---|
1472 | INTEGER(iwp) :: kk !< running index for flat lad arrays |
---|
1473 | |
---|
1474 | REAL(wp) :: ddt_3d !< inverse of the LES timestep (dt_3d) |
---|
1475 | REAL(wp) :: lad_local !< local lad value |
---|
1476 | REAL(wp) :: pre_tend !< preliminary tendency |
---|
1477 | REAL(wp) :: pre_u !< preliminary u-value |
---|
1478 | REAL(wp) :: pre_v !< preliminary v-value |
---|
1479 | REAL(wp) :: pre_w !< preliminary w-value |
---|
1480 | |
---|
1481 | |
---|
1482 | ddt_3d = 1.0_wp / dt_3d |
---|
1483 | |
---|
1484 | ! |
---|
1485 | !-- Compute drag for the three velocity components and the SGS-TKE: |
---|
1486 | SELECT CASE ( component ) |
---|
1487 | |
---|
1488 | ! |
---|
1489 | !-- u-component |
---|
1490 | CASE ( 1 ) |
---|
1491 | DO i = nxlu, nxr |
---|
1492 | DO j = nys, nyn |
---|
1493 | ! |
---|
1494 | !-- Determine topography-top index on u-grid |
---|
1495 | k_wall = topo_top_ind(j,i,1) |
---|
1496 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1497 | |
---|
1498 | kk = k - k_wall !- lad arrays are defined flat |
---|
1499 | ! |
---|
1500 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1501 | !-- the lad on the u-grid at index (k,j,i) is equal to |
---|
1502 | !-- lad_s(k,j,i), rather than being interpolated from the |
---|
1503 | !-- surrounding lad_s, because this would yield smaller lad |
---|
1504 | !-- at the canopy boundaries than inside of the canopy. |
---|
1505 | !-- For the same reason, the lad at the rightmost(i+1)canopy |
---|
1506 | !-- boundary on the u-grid equals lad_s(k,j,i). |
---|
1507 | lad_local = lad_s(kk,j,i) |
---|
1508 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp )& |
---|
1509 | THEN |
---|
1510 | lad_local = lad_s(kk,j,i-1) |
---|
1511 | ENDIF |
---|
1512 | |
---|
1513 | pre_tend = 0.0_wp |
---|
1514 | pre_u = 0.0_wp |
---|
1515 | ! |
---|
1516 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1517 | pre_tend = - cdc * & |
---|
1518 | lad_local * & |
---|
1519 | SQRT( u(k,j,i)**2 + & |
---|
1520 | ( 0.25_wp * ( v(k,j,i-1) + & |
---|
1521 | v(k,j,i) + & |
---|
1522 | v(k,j+1,i) + & |
---|
1523 | v(k,j+1,i-1) ) & |
---|
1524 | )**2 + & |
---|
1525 | ( 0.25_wp * ( w(k-1,j,i-1) + & |
---|
1526 | w(k-1,j,i) + & |
---|
1527 | w(k,j,i-1) + & |
---|
1528 | w(k,j,i) ) & |
---|
1529 | )**2 & |
---|
1530 | ) * & |
---|
1531 | u(k,j,i) |
---|
1532 | |
---|
1533 | ! |
---|
1534 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1535 | pre_u = u(k,j,i) + dt_3d * pre_tend |
---|
1536 | ! |
---|
1537 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1538 | !-- and in case the signs are different, limit the tendency |
---|
1539 | IF ( SIGN(pre_u,u(k,j,i)) /= pre_u ) THEN |
---|
1540 | pre_tend = - u(k,j,i) * ddt_3d |
---|
1541 | ELSE |
---|
1542 | pre_tend = pre_tend |
---|
1543 | ENDIF |
---|
1544 | ! |
---|
1545 | !-- Calculate final tendency |
---|
1546 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1547 | |
---|
1548 | ENDDO |
---|
1549 | ENDDO |
---|
1550 | ENDDO |
---|
1551 | |
---|
1552 | ! |
---|
1553 | !-- v-component |
---|
1554 | CASE ( 2 ) |
---|
1555 | DO i = nxl, nxr |
---|
1556 | DO j = nysv, nyn |
---|
1557 | ! |
---|
1558 | !-- Determine topography-top index on v-grid |
---|
1559 | k_wall = topo_top_ind(j,i,2) |
---|
1560 | |
---|
1561 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1562 | |
---|
1563 | kk = k - k_wall !- lad arrays are defined flat |
---|
1564 | ! |
---|
1565 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1566 | !-- the lad on the v-grid at index (k,j,i) is equal to |
---|
1567 | !-- lad_s(k,j,i), rather than being interpolated from the |
---|
1568 | !-- surrounding lad_s, because this would yield smaller lad |
---|
1569 | !-- at the canopy boundaries than inside of the canopy. |
---|
1570 | !-- For the same reason, the lad at the northmost(j+1) canopy |
---|
1571 | !-- boundary on the v-grid equals lad_s(k,j,i). |
---|
1572 | lad_local = lad_s(kk,j,i) |
---|
1573 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp )& |
---|
1574 | THEN |
---|
1575 | lad_local = lad_s(kk,j-1,i) |
---|
1576 | ENDIF |
---|
1577 | |
---|
1578 | pre_tend = 0.0_wp |
---|
1579 | pre_v = 0.0_wp |
---|
1580 | ! |
---|
1581 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1582 | pre_tend = - cdc * & |
---|
1583 | lad_local * & |
---|
1584 | SQRT( ( 0.25_wp * ( u(k,j-1,i) + & |
---|
1585 | u(k,j-1,i+1) + & |
---|
1586 | u(k,j,i) + & |
---|
1587 | u(k,j,i+1) ) & |
---|
1588 | )**2 + & |
---|
1589 | v(k,j,i)**2 + & |
---|
1590 | ( 0.25_wp * ( w(k-1,j-1,i) + & |
---|
1591 | w(k-1,j,i) + & |
---|
1592 | w(k,j-1,i) + & |
---|
1593 | w(k,j,i) ) & |
---|
1594 | )**2 & |
---|
1595 | ) * & |
---|
1596 | v(k,j,i) |
---|
1597 | |
---|
1598 | ! |
---|
1599 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1600 | pre_v = v(k,j,i) + dt_3d * pre_tend |
---|
1601 | ! |
---|
1602 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1603 | !-- and in case the signs are different, limit the tendency |
---|
1604 | IF ( SIGN(pre_v,v(k,j,i)) /= pre_v ) THEN |
---|
1605 | pre_tend = - v(k,j,i) * ddt_3d |
---|
1606 | ELSE |
---|
1607 | pre_tend = pre_tend |
---|
1608 | ENDIF |
---|
1609 | ! |
---|
1610 | !-- Calculate final tendency |
---|
1611 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1612 | |
---|
1613 | ENDDO |
---|
1614 | ENDDO |
---|
1615 | ENDDO |
---|
1616 | |
---|
1617 | ! |
---|
1618 | !-- w-component |
---|
1619 | CASE ( 3 ) |
---|
1620 | DO i = nxl, nxr |
---|
1621 | DO j = nys, nyn |
---|
1622 | ! |
---|
1623 | !-- Determine topography-top index on w-grid |
---|
1624 | k_wall = topo_top_ind(j,i,3) |
---|
1625 | |
---|
1626 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) - 1 |
---|
1627 | |
---|
1628 | kk = k - k_wall !- lad arrays are defined flat |
---|
1629 | |
---|
1630 | pre_tend = 0.0_wp |
---|
1631 | pre_w = 0.0_wp |
---|
1632 | ! |
---|
1633 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1634 | pre_tend = - cdc * & |
---|
1635 | (0.5_wp * & |
---|
1636 | ( lad_s(kk+1,j,i) + lad_s(kk,j,i) )) * & |
---|
1637 | SQRT( ( 0.25_wp * ( u(k,j,i) + & |
---|
1638 | u(k,j,i+1) + & |
---|
1639 | u(k+1,j,i) + & |
---|
1640 | u(k+1,j,i+1) ) & |
---|
1641 | )**2 + & |
---|
1642 | ( 0.25_wp * ( v(k,j,i) + & |
---|
1643 | v(k,j+1,i) + & |
---|
1644 | v(k+1,j,i) + & |
---|
1645 | v(k+1,j+1,i) ) & |
---|
1646 | )**2 + & |
---|
1647 | w(k,j,i)**2 & |
---|
1648 | ) * & |
---|
1649 | w(k,j,i) |
---|
1650 | ! |
---|
1651 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1652 | pre_w = w(k,j,i) + dt_3d * pre_tend |
---|
1653 | ! |
---|
1654 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1655 | !-- and in case the signs are different, limit the tendency |
---|
1656 | IF ( SIGN(pre_w,w(k,j,i)) /= pre_w ) THEN |
---|
1657 | pre_tend = - w(k,j,i) * ddt_3d |
---|
1658 | ELSE |
---|
1659 | pre_tend = pre_tend |
---|
1660 | ENDIF |
---|
1661 | ! |
---|
1662 | !-- Calculate final tendency |
---|
1663 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1664 | |
---|
1665 | ENDDO |
---|
1666 | ENDDO |
---|
1667 | ENDDO |
---|
1668 | |
---|
1669 | ! |
---|
1670 | !-- potential temperature |
---|
1671 | CASE ( 4 ) |
---|
1672 | IF ( humidity ) THEN |
---|
1673 | DO i = nxl, nxr |
---|
1674 | DO j = nys, nyn |
---|
1675 | !-- Determine topography-top index on scalar-grid |
---|
1676 | k_wall = topo_top_ind(j,i,0) |
---|
1677 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1678 | kk = k - k_wall !- lad arrays are defined flat |
---|
1679 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) - pc_latent_rate(kk,j,i) |
---|
1680 | ENDDO |
---|
1681 | ENDDO |
---|
1682 | ENDDO |
---|
1683 | ELSE |
---|
1684 | DO i = nxl, nxr |
---|
1685 | DO j = nys, nyn |
---|
1686 | !-- Determine topography-top index on scalar-grid |
---|
1687 | k_wall = topo_top_ind(j,i,0) |
---|
1688 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1689 | kk = k - k_wall !- lad arrays are defined flat |
---|
1690 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) |
---|
1691 | ENDDO |
---|
1692 | ENDDO |
---|
1693 | ENDDO |
---|
1694 | ENDIF |
---|
1695 | |
---|
1696 | ! |
---|
1697 | !-- humidity |
---|
1698 | CASE ( 5 ) |
---|
1699 | DO i = nxl, nxr |
---|
1700 | DO j = nys, nyn |
---|
1701 | ! |
---|
1702 | !-- Determine topography-top index on scalar-grid |
---|
1703 | k_wall = topo_top_ind(j,i,0) |
---|
1704 | |
---|
1705 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1706 | |
---|
1707 | kk = k - k_wall !- lad arrays are defined flat |
---|
1708 | |
---|
1709 | IF ( .NOT. plant_canopy_transpiration ) THEN |
---|
1710 | ! pc_transpiration_rate is calculated in radiation model |
---|
1711 | ! in case of plant_canopy_transpiration = .T. |
---|
1712 | ! to include also the dependecy to the radiation |
---|
1713 | ! in the plant canopy box |
---|
1714 | pc_transpiration_rate(kk,j,i) = - lsec & |
---|
1715 | * lad_s(kk,j,i) * & |
---|
1716 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1717 | u(k,j,i+1) ) & |
---|
1718 | )**2 + & |
---|
1719 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1720 | v(k,j+1,i) ) & |
---|
1721 | )**2 + & |
---|
1722 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
1723 | w(k,j,i) ) & |
---|
1724 | )**2 & |
---|
1725 | ) * & |
---|
1726 | ( q(k,j,i) - lsc ) |
---|
1727 | ENDIF |
---|
1728 | |
---|
1729 | tend(k,j,i) = tend(k,j,i) + pc_transpiration_rate(kk,j,i) |
---|
1730 | ENDDO |
---|
1731 | ENDDO |
---|
1732 | ENDDO |
---|
1733 | |
---|
1734 | ! |
---|
1735 | !-- sgs-tke |
---|
1736 | CASE ( 6 ) |
---|
1737 | DO i = nxl, nxr |
---|
1738 | DO j = nys, nyn |
---|
1739 | ! |
---|
1740 | !-- Determine topography-top index on scalar-grid |
---|
1741 | k_wall = topo_top_ind(j,i,0) |
---|
1742 | |
---|
1743 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1744 | |
---|
1745 | kk = k - k_wall !- lad arrays are defined flat |
---|
1746 | tend(k,j,i) = tend(k,j,i) - & |
---|
1747 | 2.0_wp * cdc * & |
---|
1748 | lad_s(kk,j,i) * & |
---|
1749 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1750 | u(k,j,i+1) ) & |
---|
1751 | )**2 + & |
---|
1752 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1753 | v(k,j+1,i) ) & |
---|
1754 | )**2 + & |
---|
1755 | ( 0.5_wp * ( w(k,j,i) + & |
---|
1756 | w(k+1,j,i) ) & |
---|
1757 | )**2 & |
---|
1758 | ) * & |
---|
1759 | e(k,j,i) |
---|
1760 | ENDDO |
---|
1761 | ENDDO |
---|
1762 | ENDDO |
---|
1763 | ! |
---|
1764 | !-- scalar concentration |
---|
1765 | CASE ( 7 ) |
---|
1766 | DO i = nxl, nxr |
---|
1767 | DO j = nys, nyn |
---|
1768 | ! |
---|
1769 | !-- Determine topography-top index on scalar-grid |
---|
1770 | k_wall = topo_top_ind(j,i,0) |
---|
1771 | |
---|
1772 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1773 | |
---|
1774 | kk = k - k_wall !- lad arrays are defined flat |
---|
1775 | tend(k,j,i) = tend(k,j,i) - & |
---|
1776 | lsec * & |
---|
1777 | lad_s(kk,j,i) * & |
---|
1778 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1779 | u(k,j,i+1) ) & |
---|
1780 | )**2 + & |
---|
1781 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1782 | v(k,j+1,i) ) & |
---|
1783 | )**2 + & |
---|
1784 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
1785 | w(k,j,i) ) & |
---|
1786 | )**2 & |
---|
1787 | ) * & |
---|
1788 | ( s(k,j,i) - lsc ) |
---|
1789 | ENDDO |
---|
1790 | ENDDO |
---|
1791 | ENDDO |
---|
1792 | |
---|
1793 | |
---|
1794 | |
---|
1795 | CASE DEFAULT |
---|
1796 | |
---|
1797 | WRITE( message_string, * ) 'wrong component: ', component |
---|
1798 | CALL message( 'pcm_tendency', 'PA0279', 1, 2, 0, 6, 0 ) |
---|
1799 | |
---|
1800 | END SELECT |
---|
1801 | |
---|
1802 | END SUBROUTINE pcm_tendency |
---|
1803 | |
---|
1804 | |
---|
1805 | !------------------------------------------------------------------------------! |
---|
1806 | ! Description: |
---|
1807 | ! ------------ |
---|
1808 | !> Calculation of the tendency terms, accounting for the effect of the plant |
---|
1809 | !> canopy on momentum and scalar quantities. |
---|
1810 | !> |
---|
1811 | !> The canopy is located where the leaf area density lad_s(k,j,i) > 0.0 |
---|
1812 | !> (defined on scalar grid), as initialized in subroutine pcm_init. |
---|
1813 | !> The lad on the w-grid is vertically interpolated from the surrounding |
---|
1814 | !> lad_s. The upper boundary of the canopy is defined on the w-grid at |
---|
1815 | !> k = pch_index. Here, the lad is zero. |
---|
1816 | !> |
---|
1817 | !> The canopy drag must be limited (previously accounted for by calculation of |
---|
1818 | !> a limiting canopy timestep for the determination of the maximum LES timestep |
---|
1819 | !> in subroutine timestep), since it is physically impossible that the canopy |
---|
1820 | !> drag alone can locally change the sign of a velocity component. This |
---|
1821 | !> limitation is realized by calculating preliminary tendencies and velocities. |
---|
1822 | !> It is subsequently checked if the preliminary new velocity has a different |
---|
1823 | !> sign than the current velocity. If so, the tendency is limited in a way that |
---|
1824 | !> the velocity can at maximum be reduced to zero by the canopy drag. |
---|
1825 | !> |
---|
1826 | !> |
---|
1827 | !> Call for grid point i,j |
---|
1828 | !------------------------------------------------------------------------------! |
---|
1829 | SUBROUTINE pcm_tendency_ij( i, j, component ) |
---|
1830 | |
---|
1831 | |
---|
1832 | USE control_parameters, & |
---|
1833 | ONLY: dt_3d, message_string |
---|
1834 | |
---|
1835 | USE kinds |
---|
1836 | |
---|
1837 | IMPLICIT NONE |
---|
1838 | |
---|
1839 | INTEGER(iwp) :: component !< prognostic variable (u,v,w,pt,q,e) |
---|
1840 | INTEGER(iwp) :: i !< running index |
---|
1841 | INTEGER(iwp) :: j !< running index |
---|
1842 | INTEGER(iwp) :: k !< running index |
---|
1843 | INTEGER(iwp) :: k_wall !< vertical index of topography top |
---|
1844 | INTEGER(iwp) :: kk !< running index for flat lad arrays |
---|
1845 | |
---|
1846 | REAL(wp) :: ddt_3d !< inverse of the LES timestep (dt_3d) |
---|
1847 | REAL(wp) :: lad_local !< local lad value |
---|
1848 | REAL(wp) :: pre_tend !< preliminary tendency |
---|
1849 | REAL(wp) :: pre_u !< preliminary u-value |
---|
1850 | REAL(wp) :: pre_v !< preliminary v-value |
---|
1851 | REAL(wp) :: pre_w !< preliminary w-value |
---|
1852 | |
---|
1853 | |
---|
1854 | ddt_3d = 1.0_wp / dt_3d |
---|
1855 | ! |
---|
1856 | !-- Compute drag for the three velocity components and the SGS-TKE |
---|
1857 | SELECT CASE ( component ) |
---|
1858 | |
---|
1859 | ! |
---|
1860 | !-- u-component |
---|
1861 | CASE ( 1 ) |
---|
1862 | ! |
---|
1863 | !-- Determine topography-top index on u-grid |
---|
1864 | k_wall = topo_top_ind(j,i,1) |
---|
1865 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
1866 | |
---|
1867 | kk = k - k_wall !- lad arrays are defined flat |
---|
1868 | |
---|
1869 | ! |
---|
1870 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1871 | !-- the lad on the u-grid at index (k,j,i) is equal to lad_s(k,j,i), |
---|
1872 | !-- rather than being interpolated from the surrounding lad_s, |
---|
1873 | !-- because this would yield smaller lad at the canopy boundaries |
---|
1874 | !-- than inside of the canopy. |
---|
1875 | !-- For the same reason, the lad at the rightmost(i+1)canopy |
---|
1876 | !-- boundary on the u-grid equals lad_s(k,j,i). |
---|
1877 | lad_local = lad_s(kk,j,i) |
---|
1878 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp ) THEN |
---|
1879 | lad_local = lad_s(kk,j,i-1) |
---|
1880 | ENDIF |
---|
1881 | |
---|
1882 | pre_tend = 0.0_wp |
---|
1883 | pre_u = 0.0_wp |
---|
1884 | ! |
---|
1885 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1886 | pre_tend = - cdc * & |
---|
1887 | lad_local * & |
---|
1888 | SQRT( u(k,j,i)**2 + & |
---|
1889 | ( 0.25_wp * ( v(k,j,i-1) + & |
---|
1890 | v(k,j,i) + & |
---|
1891 | v(k,j+1,i) + & |
---|
1892 | v(k,j+1,i-1) ) & |
---|
1893 | )**2 + & |
---|
1894 | ( 0.25_wp * ( w(k-1,j,i-1) + & |
---|
1895 | w(k-1,j,i) + & |
---|
1896 | w(k,j,i-1) + & |
---|
1897 | w(k,j,i) ) & |
---|
1898 | )**2 & |
---|
1899 | ) * & |
---|
1900 | u(k,j,i) |
---|
1901 | |
---|
1902 | ! |
---|
1903 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1904 | pre_u = u(k,j,i) + dt_3d * pre_tend |
---|
1905 | ! |
---|
1906 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1907 | !-- and in case the signs are different, limit the tendency |
---|
1908 | IF ( SIGN(pre_u,u(k,j,i)) /= pre_u ) THEN |
---|
1909 | pre_tend = - u(k,j,i) * ddt_3d |
---|
1910 | ELSE |
---|
1911 | pre_tend = pre_tend |
---|
1912 | ENDIF |
---|
1913 | ! |
---|
1914 | !-- Calculate final tendency |
---|
1915 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1916 | ENDDO |
---|
1917 | |
---|
1918 | |
---|
1919 | ! |
---|
1920 | !-- v-component |
---|
1921 | CASE ( 2 ) |
---|
1922 | ! |
---|
1923 | !-- Determine topography-top index on v-grid |
---|
1924 | k_wall = topo_top_ind(j,i,2) |
---|
1925 | |
---|
1926 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
1927 | |
---|
1928 | kk = k - k_wall !- lad arrays are defined flat |
---|
1929 | ! |
---|
1930 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1931 | !-- the lad on the v-grid at index (k,j,i) is equal to lad_s(k,j,i), |
---|
1932 | !-- rather than being interpolated from the surrounding lad_s, |
---|
1933 | !-- because this would yield smaller lad at the canopy boundaries |
---|
1934 | !-- than inside of the canopy. |
---|
1935 | !-- For the same reason, the lad at the northmost(j+1)canopy |
---|
1936 | !-- boundary on the v-grid equals lad_s(k,j,i). |
---|
1937 | lad_local = lad_s(kk,j,i) |
---|
1938 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp ) THEN |
---|
1939 | lad_local = lad_s(kk,j-1,i) |
---|
1940 | ENDIF |
---|
1941 | |
---|
1942 | pre_tend = 0.0_wp |
---|
1943 | pre_v = 0.0_wp |
---|
1944 | ! |
---|
1945 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1946 | pre_tend = - cdc * & |
---|
1947 | lad_local * & |
---|
1948 | SQRT( ( 0.25_wp * ( u(k,j-1,i) + & |
---|
1949 | u(k,j-1,i+1) + & |
---|
1950 | u(k,j,i) + & |
---|
1951 | u(k,j,i+1) ) & |
---|
1952 | )**2 + & |
---|
1953 | v(k,j,i)**2 + & |
---|
1954 | ( 0.25_wp * ( w(k-1,j-1,i) + & |
---|
1955 | w(k-1,j,i) + & |
---|
1956 | w(k,j-1,i) + & |
---|
1957 | w(k,j,i) ) & |
---|
1958 | )**2 & |
---|
1959 | ) * & |
---|
1960 | v(k,j,i) |
---|
1961 | |
---|
1962 | ! |
---|
1963 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1964 | pre_v = v(k,j,i) + dt_3d * pre_tend |
---|
1965 | ! |
---|
1966 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1967 | !-- and in case the signs are different, limit the tendency |
---|
1968 | IF ( SIGN(pre_v,v(k,j,i)) /= pre_v ) THEN |
---|
1969 | pre_tend = - v(k,j,i) * ddt_3d |
---|
1970 | ELSE |
---|
1971 | pre_tend = pre_tend |
---|
1972 | ENDIF |
---|
1973 | ! |
---|
1974 | !-- Calculate final tendency |
---|
1975 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1976 | ENDDO |
---|
1977 | |
---|
1978 | |
---|
1979 | ! |
---|
1980 | !-- w-component |
---|
1981 | CASE ( 3 ) |
---|
1982 | ! |
---|
1983 | !-- Determine topography-top index on w-grid |
---|
1984 | k_wall = topo_top_ind(j,i,3) |
---|
1985 | |
---|
1986 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) - 1 |
---|
1987 | |
---|
1988 | kk = k - k_wall !- lad arrays are defined flat |
---|
1989 | |
---|
1990 | pre_tend = 0.0_wp |
---|
1991 | pre_w = 0.0_wp |
---|
1992 | ! |
---|
1993 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1994 | pre_tend = - cdc * & |
---|
1995 | (0.5_wp * & |
---|
1996 | ( lad_s(kk+1,j,i) + lad_s(kk,j,i) )) * & |
---|
1997 | SQRT( ( 0.25_wp * ( u(k,j,i) + & |
---|
1998 | u(k,j,i+1) + & |
---|
1999 | u(k+1,j,i) + & |
---|
2000 | u(k+1,j,i+1) ) & |
---|
2001 | )**2 + & |
---|
2002 | ( 0.25_wp * ( v(k,j,i) + & |
---|
2003 | v(k,j+1,i) + & |
---|
2004 | v(k+1,j,i) + & |
---|
2005 | v(k+1,j+1,i) ) & |
---|
2006 | )**2 + & |
---|
2007 | w(k,j,i)**2 & |
---|
2008 | ) * & |
---|
2009 | w(k,j,i) |
---|
2010 | ! |
---|
2011 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
2012 | pre_w = w(k,j,i) + dt_3d * pre_tend |
---|
2013 | ! |
---|
2014 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
2015 | !-- and in case the signs are different, limit the tendency |
---|
2016 | IF ( SIGN(pre_w,w(k,j,i)) /= pre_w ) THEN |
---|
2017 | pre_tend = - w(k,j,i) * ddt_3d |
---|
2018 | ELSE |
---|
2019 | pre_tend = pre_tend |
---|
2020 | ENDIF |
---|
2021 | ! |
---|
2022 | !-- Calculate final tendency |
---|
2023 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
2024 | ENDDO |
---|
2025 | |
---|
2026 | ! |
---|
2027 | !-- potential temperature |
---|
2028 | CASE ( 4 ) |
---|
2029 | ! |
---|
2030 | !-- Determine topography-top index on scalar grid |
---|
2031 | k_wall = topo_top_ind(j,i,0) |
---|
2032 | |
---|
2033 | IF ( humidity ) THEN |
---|
2034 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2035 | kk = k - k_wall !- lad arrays are defined flat |
---|
2036 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) - & |
---|
2037 | pc_latent_rate(kk,j,i) |
---|
2038 | ENDDO |
---|
2039 | ELSE |
---|
2040 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2041 | kk = k - k_wall !- lad arrays are defined flat |
---|
2042 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) |
---|
2043 | ENDDO |
---|
2044 | ENDIF |
---|
2045 | |
---|
2046 | ! |
---|
2047 | !-- humidity |
---|
2048 | CASE ( 5 ) |
---|
2049 | ! |
---|
2050 | !-- Determine topography-top index on scalar grid |
---|
2051 | k_wall = topo_top_ind(j,i,0) |
---|
2052 | |
---|
2053 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2054 | kk = k - k_wall !- lad arrays are defined flat |
---|
2055 | IF ( .NOT. plant_canopy_transpiration ) THEN |
---|
2056 | ! pc_transpiration_rate is calculated in radiation model |
---|
2057 | ! in case of plant_canopy_transpiration = .T. |
---|
2058 | ! to include also the dependecy to the radiation |
---|
2059 | ! in the plant canopy box |
---|
2060 | pc_transpiration_rate(kk,j,i) = - lsec & |
---|
2061 | * lad_s(kk,j,i) * & |
---|
2062 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2063 | u(k,j,i+1) ) & |
---|
2064 | )**2 + & |
---|
2065 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2066 | v(k,j+1,i) ) & |
---|
2067 | )**2 + & |
---|
2068 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
2069 | w(k,j,i) ) & |
---|
2070 | )**2 & |
---|
2071 | ) * & |
---|
2072 | ( q(k,j,i) - lsc ) |
---|
2073 | ENDIF |
---|
2074 | |
---|
2075 | tend(k,j,i) = tend(k,j,i) + pc_transpiration_rate(kk,j,i) |
---|
2076 | |
---|
2077 | ENDDO |
---|
2078 | |
---|
2079 | ! |
---|
2080 | !-- sgs-tke |
---|
2081 | CASE ( 6 ) |
---|
2082 | ! |
---|
2083 | !-- Determine topography-top index on scalar grid |
---|
2084 | k_wall = topo_top_ind(j,i,0) |
---|
2085 | |
---|
2086 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2087 | |
---|
2088 | kk = k - k_wall |
---|
2089 | tend(k,j,i) = tend(k,j,i) - & |
---|
2090 | 2.0_wp * cdc * & |
---|
2091 | lad_s(kk,j,i) * & |
---|
2092 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2093 | u(k,j,i+1) ) & |
---|
2094 | )**2 + & |
---|
2095 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2096 | v(k,j+1,i) ) & |
---|
2097 | )**2 + & |
---|
2098 | ( 0.5_wp * ( w(k,j,i) + & |
---|
2099 | w(k+1,j,i) ) & |
---|
2100 | )**2 & |
---|
2101 | ) * & |
---|
2102 | e(k,j,i) |
---|
2103 | ENDDO |
---|
2104 | |
---|
2105 | ! |
---|
2106 | !-- scalar concentration |
---|
2107 | CASE ( 7 ) |
---|
2108 | ! |
---|
2109 | !-- Determine topography-top index on scalar grid |
---|
2110 | k_wall = topo_top_ind(j,i,0) |
---|
2111 | |
---|
2112 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2113 | |
---|
2114 | kk = k - k_wall |
---|
2115 | tend(k,j,i) = tend(k,j,i) - & |
---|
2116 | lsec * & |
---|
2117 | lad_s(kk,j,i) * & |
---|
2118 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2119 | u(k,j,i+1) ) & |
---|
2120 | )**2 + & |
---|
2121 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2122 | v(k,j+1,i) ) & |
---|
2123 | )**2 + & |
---|
2124 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
2125 | w(k,j,i) ) & |
---|
2126 | )**2 & |
---|
2127 | ) * & |
---|
2128 | ( s(k,j,i) - lsc ) |
---|
2129 | ENDDO |
---|
2130 | |
---|
2131 | CASE DEFAULT |
---|
2132 | |
---|
2133 | WRITE( message_string, * ) 'wrong component: ', component |
---|
2134 | CALL message( 'pcm_tendency', 'PA0279', 1, 2, 0, 6, 0 ) |
---|
2135 | |
---|
2136 | END SELECT |
---|
2137 | |
---|
2138 | END SUBROUTINE pcm_tendency_ij |
---|
2139 | |
---|
2140 | |
---|
2141 | |
---|
2142 | END MODULE plant_canopy_model_mod |
---|