1 | !> @file lpm_calc_liquid_water_content.f90 |
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2 | !------------------------------------------------------------------------------! |
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3 | ! This file is part of PALM. |
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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 1997-2016 Leibniz Universitaet Hannover |
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18 | !------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ------------------ |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: lpm_calc_liquid_water_content.f90 2001 2016-08-20 18:41:22Z suehring $ |
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27 | ! |
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28 | ! 2000 2016-08-20 18:09:15Z knoop |
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29 | ! Forced header and separation lines into 80 columns |
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30 | ! |
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31 | ! 1822 2016-04-07 07:49:42Z hoffmann |
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32 | ! Unused variables removed. |
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33 | ! |
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34 | ! 1682 2015-10-07 23:56:08Z knoop |
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35 | ! Code annotations made doxygen readable |
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36 | ! |
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37 | ! 1359 2014-04-11 17:15:14Z hoffmann |
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38 | ! New particle structure integrated. |
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39 | ! Kind definition added to all floating point numbers. |
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40 | ! |
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41 | ! 1320 2014-03-20 08:40:49Z raasch |
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42 | ! ONLY-attribute added to USE-statements, |
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43 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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44 | ! kinds are defined in new module kinds, |
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45 | ! comment fields (!:) to be used for variable explanations added to |
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46 | ! all variable declaration statements |
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47 | ! |
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48 | ! 1036 2012-10-22 13:43:42Z raasch |
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49 | ! code put under GPL (PALM 3.9) |
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50 | ! |
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51 | ! 849 2012-03-15 10:35:09Z raasch |
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52 | ! initial revision (former part of advec_particles) |
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53 | ! |
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54 | ! |
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55 | ! Description: |
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56 | ! ------------ |
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57 | !> Calculate the liquid water content for each grid box. |
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58 | !------------------------------------------------------------------------------! |
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59 | SUBROUTINE lpm_calc_liquid_water_content |
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60 | |
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61 | |
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62 | USE arrays_3d, & |
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63 | ONLY: ql, ql_v, ql_vp |
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64 | |
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65 | USE cloud_parameters, & |
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66 | ONLY: rho_l |
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67 | |
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68 | USE constants, & |
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69 | ONLY: pi |
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70 | |
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71 | USE control_parameters, & |
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72 | ONLY: dz, message_string, rho_surface |
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73 | |
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74 | USE cpulog, & |
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75 | ONLY: cpu_log, log_point_s |
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76 | |
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77 | USE grid_variables, & |
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78 | ONLY: dx, dy |
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79 | |
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80 | USE indices, & |
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81 | ONLY: nxl, nxr, nyn, nys, nzb, nzt |
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82 | |
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83 | USE kinds |
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84 | |
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85 | USE particle_attributes, & |
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86 | ONLY: grid_particles, number_of_particles, particles, prt_count |
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87 | |
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88 | IMPLICIT NONE |
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89 | |
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90 | INTEGER(iwp) :: i !< |
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91 | INTEGER(iwp) :: j !< |
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92 | INTEGER(iwp) :: k !< |
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93 | INTEGER(iwp) :: n !< |
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94 | |
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95 | CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'start' ) |
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96 | |
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97 | ! |
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98 | !-- Set water content initially to zero |
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99 | ql = 0.0_wp; ql_v = 0.0_wp; ql_vp = 0.0_wp |
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100 | |
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101 | ! |
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102 | !-- Calculate for each grid box |
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103 | DO i = nxl, nxr |
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104 | DO j = nys, nyn |
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105 | DO k = nzb+1, nzt |
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106 | |
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107 | number_of_particles = prt_count(k,j,i) |
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108 | IF ( number_of_particles <= 0 ) CYCLE |
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109 | particles => grid_particles(k,j,i)%particles(1:number_of_particles) |
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110 | |
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111 | ! |
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112 | !-- Calculate the total volume in the boxes (ql_v, weighting factor |
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113 | !-- has to beincluded) |
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114 | DO n = 1, prt_count(k,j,i) |
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115 | ql_v(k,j,i) = ql_v(k,j,i) + particles(n)%weight_factor * & |
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116 | particles(n)%radius**3 |
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117 | ENDDO |
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118 | |
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119 | ! |
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120 | !-- Calculate the liquid water content |
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121 | IF ( ql_v(k,j,i) /= 0.0_wp ) THEN |
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122 | ql(k,j,i) = ql(k,j,i) + rho_l * 1.33333333_wp * pi * & |
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123 | ql_v(k,j,i) / & |
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124 | ( rho_surface * dx * dy * dz ) |
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125 | |
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126 | IF ( ql(k,j,i) < 0.0_wp ) THEN |
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127 | WRITE( message_string, * ) 'LWC out of range: ' , & |
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128 | ql(k,j,i),i,j,k |
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129 | CALL message( 'lpm_calc_liquid_water_content', '', 2, 2, & |
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130 | -1, 6, 1 ) |
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131 | ENDIF |
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132 | |
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133 | ELSE |
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134 | |
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135 | ql(k,j,i) = 0.0_wp |
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136 | |
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137 | ENDIF |
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138 | |
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139 | ENDDO |
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140 | ENDDO |
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141 | ENDDO |
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142 | |
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143 | CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'stop' ) |
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144 | |
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145 | |
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146 | END SUBROUTINE lpm_calc_liquid_water_content |
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