1 | MODULE buoyancy_mod |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2012 Leibniz University Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Currrent 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: buoyancy.f90 1037 2012-10-22 14:10:22Z raasch $ |
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27 | ! |
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28 | ! 1036 2012-10-22 13:43:42Z raasch |
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29 | ! code put under GPL (PALM 3.9) |
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30 | ! |
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31 | ! 1015 2012-09-27 09:23:24Z raasch |
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32 | ! accelerator version (*_acc) added |
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33 | ! |
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34 | ! 1010 2012-09-20 07:59:54Z raasch |
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35 | ! cpp switch __nopointer added for pointer free version |
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36 | ! |
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37 | ! 622 2010-12-10 08:08:13Z raasch |
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38 | ! optional barriers included in order to speed up collective operations |
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39 | ! |
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40 | ! 515 2010-03-18 02:30:38Z raasch |
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41 | ! PGI-compiler creates SIGFPE in routine buoyancy, if opt>1 is used! Therefore, |
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42 | ! opt=1 is forced by compiler-directive. |
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43 | ! |
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44 | ! 247 2009-02-27 14:01:30Z heinze |
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45 | ! Output of messages replaced by message handling routine |
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46 | ! |
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47 | ! 132 2007-11-20 09:46:11Z letzel |
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48 | ! Vertical scalar profiles now based on nzb_s_inner and ngp_2dh_s_inner. |
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49 | ! |
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50 | ! 106 2007-08-16 14:30:26Z raasch |
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51 | ! i loop for u-component (sloping surface) is starting from nxlu (needed for |
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52 | ! non-cyclic boundary conditions) |
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53 | ! |
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54 | ! 97 2007-06-21 08:23:15Z raasch |
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55 | ! Routine reneralized to be used with temperature AND density: |
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56 | ! argument theta renamed var, new argument var_reference, |
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57 | ! use_pt_reference renamed use_reference, |
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58 | ! calc_mean_pt_profile renamed calc_mean_profile |
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59 | ! |
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60 | ! 57 2007-03-09 12:05:41Z raasch |
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61 | ! Reference temperature pt_reference can be used. |
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62 | ! |
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63 | ! RCS Log replace by Id keyword, revision history cleaned up |
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64 | ! |
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65 | ! Revision 1.19 2006/04/26 12:09:56 raasch |
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66 | ! OpenMP optimization (one dimension added to sums_l) |
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67 | ! |
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68 | ! Revision 1.1 1997/08/29 08:56:48 raasch |
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69 | ! Initial revision |
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70 | ! |
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71 | ! |
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72 | ! Description: |
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73 | ! ------------ |
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74 | ! Buoyancy term of the third component of the equation of motion. |
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75 | ! WARNING: humidity is not regarded when using a sloping surface! |
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76 | !------------------------------------------------------------------------------! |
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77 | |
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78 | PRIVATE |
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79 | PUBLIC buoyancy, buoyancy_acc, calc_mean_profile |
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80 | |
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81 | INTERFACE buoyancy |
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82 | MODULE PROCEDURE buoyancy |
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83 | MODULE PROCEDURE buoyancy_ij |
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84 | END INTERFACE buoyancy |
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85 | |
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86 | INTERFACE buoyancy_acc |
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87 | MODULE PROCEDURE buoyancy_acc |
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88 | END INTERFACE buoyancy_acc |
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89 | |
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90 | INTERFACE calc_mean_profile |
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91 | MODULE PROCEDURE calc_mean_profile |
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92 | END INTERFACE calc_mean_profile |
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93 | |
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94 | CONTAINS |
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95 | |
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96 | |
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97 | !------------------------------------------------------------------------------! |
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98 | ! Call for all grid points |
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99 | !------------------------------------------------------------------------------! |
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100 | SUBROUTINE buoyancy( var, var_reference, wind_component, pr ) |
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101 | |
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102 | USE arrays_3d |
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103 | USE control_parameters |
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104 | USE indices |
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105 | USE pegrid |
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106 | USE statistics |
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107 | |
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108 | IMPLICIT NONE |
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109 | |
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110 | INTEGER :: i, j, k, pr, wind_component |
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111 | REAL :: var_reference |
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112 | #if defined( __nopointer ) |
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113 | REAL, DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var |
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114 | #else |
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115 | REAL, DIMENSION(:,:,:), POINTER :: var |
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116 | #endif |
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117 | |
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118 | |
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119 | IF ( .NOT. sloping_surface ) THEN |
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120 | ! |
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121 | !-- Normal case: horizontal surface |
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122 | IF ( use_reference ) THEN |
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123 | DO i = nxl, nxr |
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124 | DO j = nys, nyn |
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125 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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126 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * & |
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127 | ( & |
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128 | ( var(k,j,i) - hom(k,1,pr,0) ) / var_reference + & |
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129 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / var_reference & |
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130 | ) |
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131 | ENDDO |
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132 | ENDDO |
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133 | ENDDO |
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134 | ELSE |
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135 | DO i = nxl, nxr |
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136 | DO j = nys, nyn |
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137 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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138 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * & |
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139 | ( & |
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140 | ( var(k,j,i) - hom(k,1,pr,0) ) / hom(k,1,pr,0) + & |
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141 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / hom(k+1,1,pr,0) & |
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142 | ) |
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143 | ENDDO |
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144 | ENDDO |
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145 | ENDDO |
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146 | ENDIF |
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147 | |
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148 | ELSE |
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149 | ! |
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150 | !-- Buoyancy term for a surface with a slope in x-direction. The equations |
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151 | !-- for both the u and w velocity-component contain proportionate terms. |
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152 | !-- Temperature field at time t=0 serves as environmental temperature. |
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153 | !-- Reference temperature (pt_surface) is the one at the lower left corner |
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154 | !-- of the total domain. |
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155 | IF ( wind_component == 1 ) THEN |
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156 | |
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157 | DO i = nxlu, nxr |
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158 | DO j = nys, nyn |
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159 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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160 | tend(k,j,i) = tend(k,j,i) + g * sin_alpha_surface * & |
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161 | 0.5 * ( ( pt(k,j,i-1) + pt(k,j,i) ) & |
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162 | - ( pt_slope_ref(k,i-1) + pt_slope_ref(k,i) ) & |
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163 | ) / pt_surface |
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164 | ENDDO |
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165 | ENDDO |
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166 | ENDDO |
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167 | |
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168 | ELSEIF ( wind_component == 3 ) THEN |
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169 | |
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170 | DO i = nxl, nxr |
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171 | DO j = nys, nyn |
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172 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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173 | tend(k,j,i) = tend(k,j,i) + g * cos_alpha_surface * & |
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174 | 0.5 * ( ( pt(k,j,i) + pt(k+1,j,i) ) & |
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175 | - ( pt_slope_ref(k,i) + pt_slope_ref(k+1,i) ) & |
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176 | ) / pt_surface |
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177 | ENDDO |
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178 | ENDDO |
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179 | ENDDO |
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180 | |
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181 | ELSE |
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182 | |
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183 | WRITE( message_string, * ) 'no term for component "',& |
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184 | wind_component,'"' |
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185 | CALL message( 'buoyancy', 'PA0159', 1, 2, 0, 6, 0 ) |
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186 | |
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187 | ENDIF |
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188 | |
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189 | ENDIF |
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190 | |
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191 | END SUBROUTINE buoyancy |
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192 | |
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193 | |
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194 | !------------------------------------------------------------------------------! |
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195 | ! Call for all grid points - accelerator version |
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196 | !------------------------------------------------------------------------------! |
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197 | SUBROUTINE buoyancy_acc( var, var_reference, wind_component, pr ) |
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198 | |
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199 | USE arrays_3d |
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200 | USE control_parameters |
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201 | USE indices |
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202 | USE pegrid |
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203 | USE statistics |
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204 | |
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205 | IMPLICIT NONE |
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206 | |
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207 | INTEGER :: i, j, k, pr, wind_component |
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208 | REAL :: var_reference |
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209 | #if defined( __nopointer ) |
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210 | REAL, DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var |
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211 | #else |
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212 | REAL, DIMENSION(:,:,:), POINTER :: var |
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213 | #endif |
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214 | |
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215 | |
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216 | IF ( .NOT. sloping_surface ) THEN |
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217 | ! |
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218 | !-- Normal case: horizontal surface |
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219 | IF ( use_reference ) THEN |
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220 | DO i = nxl, nxr |
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221 | DO j = nys, nyn |
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222 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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223 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * & |
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224 | ( & |
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225 | ( var(k,j,i) - hom(k,1,pr,0) ) / var_reference + & |
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226 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / var_reference & |
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227 | ) |
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228 | ENDDO |
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229 | ENDDO |
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230 | ENDDO |
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231 | ELSE |
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232 | !$acc kernels present( nzb_s_inner, hom, tend, var ) |
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233 | !$acc loop |
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234 | DO i = nxl, nxr |
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235 | DO j = nys, nyn |
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236 | !$acc loop vector(32) |
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237 | DO k = 1, nzt-1 |
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238 | IF ( k > nzb_s_inner(j,i) ) THEN |
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239 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * & |
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240 | ( & |
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241 | ( var(k,j,i) - hom(k,1,pr,0) ) / hom(k,1,pr,0) + & |
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242 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / hom(k+1,1,pr,0) & |
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243 | ) |
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244 | ENDIF |
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245 | ENDDO |
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246 | ENDDO |
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247 | ENDDO |
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248 | !$acc end kernels |
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249 | ENDIF |
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250 | |
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251 | ELSE |
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252 | ! |
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253 | !-- Buoyancy term for a surface with a slope in x-direction. The equations |
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254 | !-- for both the u and w velocity-component contain proportionate terms. |
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255 | !-- Temperature field at time t=0 serves as environmental temperature. |
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256 | !-- Reference temperature (pt_surface) is the one at the lower left corner |
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257 | !-- of the total domain. |
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258 | IF ( wind_component == 1 ) THEN |
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259 | |
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260 | DO i = nxlu, nxr |
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261 | DO j = nys, nyn |
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262 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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263 | tend(k,j,i) = tend(k,j,i) + g * sin_alpha_surface * & |
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264 | 0.5 * ( ( pt(k,j,i-1) + pt(k,j,i) ) & |
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265 | - ( pt_slope_ref(k,i-1) + pt_slope_ref(k,i) ) & |
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266 | ) / pt_surface |
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267 | ENDDO |
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268 | ENDDO |
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269 | ENDDO |
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270 | |
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271 | ELSEIF ( wind_component == 3 ) THEN |
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272 | |
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273 | DO i = nxl, nxr |
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274 | DO j = nys, nyn |
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275 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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276 | tend(k,j,i) = tend(k,j,i) + g * cos_alpha_surface * & |
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277 | 0.5 * ( ( pt(k,j,i) + pt(k+1,j,i) ) & |
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278 | - ( pt_slope_ref(k,i) + pt_slope_ref(k+1,i) ) & |
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279 | ) / pt_surface |
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280 | ENDDO |
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281 | ENDDO |
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282 | ENDDO |
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283 | |
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284 | ELSE |
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285 | |
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286 | WRITE( message_string, * ) 'no term for component "',& |
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287 | wind_component,'"' |
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288 | CALL message( 'buoyancy', 'PA0159', 1, 2, 0, 6, 0 ) |
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289 | |
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290 | ENDIF |
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291 | |
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292 | ENDIF |
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293 | |
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294 | END SUBROUTINE buoyancy_acc |
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295 | |
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296 | |
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297 | !------------------------------------------------------------------------------! |
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298 | ! Call for grid point i,j |
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299 | ! ATTENTION: PGI-compiler creates SIGFPE if opt>1 is used! Therefore, opt=1 is |
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300 | ! forced by compiler-directive. |
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301 | !------------------------------------------------------------------------------! |
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302 | !pgi$r opt=1 |
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303 | SUBROUTINE buoyancy_ij( i, j, var, var_reference, wind_component, pr ) |
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304 | |
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305 | USE arrays_3d |
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306 | USE control_parameters |
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307 | USE indices |
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308 | USE pegrid |
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309 | USE statistics |
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310 | |
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311 | IMPLICIT NONE |
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312 | |
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313 | INTEGER :: i, j, k, pr, wind_component |
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314 | REAL :: var_reference |
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315 | #if defined( __nopointer ) |
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316 | REAL, DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var |
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317 | #else |
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318 | REAL, DIMENSION(:,:,:), POINTER :: var |
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319 | #endif |
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320 | |
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321 | |
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322 | IF ( .NOT. sloping_surface ) THEN |
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323 | ! |
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324 | !-- Normal case: horizontal surface |
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325 | IF ( use_reference ) THEN |
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326 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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327 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * ( & |
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328 | ( var(k,j,i) - hom(k,1,pr,0) ) / var_reference + & |
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329 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / var_reference & |
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330 | ) |
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331 | ENDDO |
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332 | ELSE |
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333 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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334 | tend(k,j,i) = tend(k,j,i) + atmos_ocean_sign * g * 0.5 * ( & |
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335 | ( var(k,j,i) - hom(k,1,pr,0) ) / hom(k,1,pr,0) + & |
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336 | ( var(k+1,j,i) - hom(k+1,1,pr,0) ) / hom(k+1,1,pr,0) & |
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337 | ) |
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338 | ENDDO |
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339 | ENDIF |
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340 | |
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341 | ELSE |
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342 | ! |
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343 | !-- Buoyancy term for a surface with a slope in x-direction. The equations |
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344 | !-- for both the u and w velocity-component contain proportionate terms. |
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345 | !-- Temperature field at time t=0 serves as environmental temperature. |
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346 | !-- Reference temperature (pt_surface) is the one at the lower left corner |
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347 | !-- of the total domain. |
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348 | IF ( wind_component == 1 ) THEN |
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349 | |
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350 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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351 | tend(k,j,i) = tend(k,j,i) + g * sin_alpha_surface * & |
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352 | 0.5 * ( ( pt(k,j,i-1) + pt(k,j,i) ) & |
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353 | - ( pt_slope_ref(k,i-1) + pt_slope_ref(k,i) ) & |
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354 | ) / pt_surface |
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355 | ENDDO |
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356 | |
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357 | ELSEIF ( wind_component == 3 ) THEN |
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358 | |
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359 | DO k = nzb_s_inner(j,i)+1, nzt-1 |
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360 | tend(k,j,i) = tend(k,j,i) + g * cos_alpha_surface * & |
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361 | 0.5 * ( ( pt(k,j,i) + pt(k+1,j,i) ) & |
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362 | - ( pt_slope_ref(k,i) + pt_slope_ref(k+1,i) ) & |
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363 | ) / pt_surface |
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364 | ENDDO |
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365 | |
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366 | ELSE |
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367 | |
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368 | WRITE( message_string, * ) 'no term for component "',& |
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369 | wind_component,'"' |
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370 | CALL message( 'buoyancy', 'PA0159', 1, 2, 0, 6, 0 ) |
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371 | |
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372 | ENDIF |
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373 | |
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374 | ENDIF |
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375 | |
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376 | END SUBROUTINE buoyancy_ij |
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377 | |
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378 | |
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379 | SUBROUTINE calc_mean_profile( var, pr ) |
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380 | |
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381 | !------------------------------------------------------------------------------! |
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382 | ! Description: |
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383 | ! ------------ |
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384 | ! Calculate the horizontally averaged vertical temperature profile (pr=4 in case |
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385 | ! of potential temperature and 44 in case of virtual potential temperature). |
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386 | !------------------------------------------------------------------------------! |
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387 | |
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388 | USE control_parameters |
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389 | USE indices |
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390 | USE pegrid |
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391 | USE statistics |
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392 | |
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393 | IMPLICIT NONE |
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394 | |
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395 | INTEGER :: i, j, k, omp_get_thread_num, pr, tn |
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396 | #if defined( __nopointer ) |
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397 | REAL, DIMENSION(:,:,:) :: var |
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398 | #else |
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399 | REAL, DIMENSION(:,:,:), POINTER :: var |
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400 | #endif |
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401 | |
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402 | ! |
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403 | !-- Computation of the horizontally averaged profile of variable var, unless |
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404 | !-- already done by the relevant call from flow_statistics. The calculation |
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405 | !-- is done only for the first respective intermediate timestep in order to |
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406 | !-- spare communication time and to produce identical model results with jobs |
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407 | !-- which are calling flow_statistics at different time intervals. |
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408 | IF ( .NOT. flow_statistics_called .AND. & |
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409 | intermediate_timestep_count == 1 ) THEN |
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410 | |
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411 | ! |
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412 | !-- Horizontal average of variable var |
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413 | tn = 0 ! Default thread number in case of one thread |
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414 | !$OMP PARALLEL PRIVATE( i, j, k, tn ) |
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415 | !$ tn = omp_get_thread_num() |
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416 | sums_l(:,pr,tn) = 0.0 |
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417 | !$OMP DO |
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418 | DO i = nxl, nxr |
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419 | DO j = nys, nyn |
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420 | DO k = nzb_s_inner(j,i), nzt+1 |
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421 | sums_l(k,pr,tn) = sums_l(k,pr,tn) + var(k,j,i) |
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422 | ENDDO |
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423 | ENDDO |
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424 | ENDDO |
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425 | !$OMP END PARALLEL |
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426 | |
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427 | DO i = 1, threads_per_task-1 |
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428 | sums_l(:,pr,0) = sums_l(:,pr,0) + sums_l(:,pr,i) |
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429 | ENDDO |
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430 | |
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431 | #if defined( __parallel ) |
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432 | |
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433 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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434 | CALL MPI_ALLREDUCE( sums_l(nzb,pr,0), sums(nzb,pr), nzt+2-nzb, & |
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435 | MPI_REAL, MPI_SUM, comm2d, ierr ) |
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436 | |
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437 | #else |
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438 | |
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439 | sums(:,pr) = sums_l(:,pr,0) |
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440 | |
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441 | #endif |
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442 | |
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443 | hom(:,1,pr,0) = sums(:,pr) / ngp_2dh_s_inner(:,0) |
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444 | |
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445 | ENDIF |
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446 | |
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447 | END SUBROUTINE calc_mean_profile |
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448 | |
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449 | END MODULE buoyancy_mod |
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