[1873] | 1 | !> @file diffusion_w.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[1036] | 3 | ! This file is part of PALM. |
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| 4 | ! |
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[2000] | 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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[1036] | 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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[2101] | 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[484] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[2118] | 22 | ! OpenACC version of subroutine removed |
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[1341] | 23 | ! |
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[1321] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: diffusion_w.f90 2118 2017-01-17 16:38:49Z raasch $ |
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| 27 | ! |
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[2038] | 28 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 29 | ! Anelastic approximation implemented |
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| 30 | ! |
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[2001] | 31 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 32 | ! Forced header and separation lines into 80 columns |
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| 33 | ! |
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[1874] | 34 | ! 1873 2016-04-18 14:50:06Z maronga |
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| 35 | ! Module renamed (removed _mod) |
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| 36 | ! |
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[1851] | 37 | ! 1850 2016-04-08 13:29:27Z maronga |
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| 38 | ! Module renamed |
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| 39 | ! |
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[1683] | 40 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 41 | ! Code annotations made doxygen readable |
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| 42 | ! |
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[1375] | 43 | ! 1374 2014-04-25 12:55:07Z raasch |
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| 44 | ! vsws + vswst removed from acc-present-list |
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| 45 | ! |
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[1354] | 46 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 47 | ! REAL constants provided with KIND-attribute |
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| 48 | ! |
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[1341] | 49 | ! 1340 2014-03-25 19:45:13Z kanani |
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| 50 | ! REAL constants defined as wp-kind |
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| 51 | ! |
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[1323] | 52 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 53 | ! REAL constants defined as wp-kind |
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| 54 | ! |
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[1321] | 55 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 56 | ! ONLY-attribute added to USE-statements, |
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| 57 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 58 | ! kinds are defined in new module kinds, |
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| 59 | ! revision history before 2012 removed, |
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| 60 | ! comment fields (!:) to be used for variable explanations added to |
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| 61 | ! all variable declaration statements |
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[1] | 62 | ! |
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[1258] | 63 | ! 1257 2013-11-08 15:18:40Z raasch |
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| 64 | ! openacc loop and loop vector clauses removed, declare create moved after |
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| 65 | ! the FORTRAN declaration statement |
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| 66 | ! |
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[1132] | 67 | ! 1128 2013-04-12 06:19:32Z raasch |
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| 68 | ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, |
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| 69 | ! j_north |
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| 70 | ! |
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[1037] | 71 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 72 | ! code put under GPL (PALM 3.9) |
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| 73 | ! |
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[1017] | 74 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 75 | ! accelerator version (*_acc) added |
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| 76 | ! |
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[1002] | 77 | ! 1001 2012-09-13 14:08:46Z raasch |
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| 78 | ! arrays comunicated by module instead of parameter list |
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| 79 | ! |
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[979] | 80 | ! 978 2012-08-09 08:28:32Z fricke |
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| 81 | ! outflow damping layer removed |
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| 82 | ! kmxm_x/_z and kmxp_x/_z change to kmxm and kmxp |
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| 83 | ! kmym_y/_z and kmyp_y/_z change to kmym and kmyp |
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| 84 | ! |
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[1] | 85 | ! Revision 1.1 1997/09/12 06:24:11 raasch |
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| 86 | ! Initial revision |
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| 87 | ! |
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| 88 | ! |
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| 89 | ! Description: |
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| 90 | ! ------------ |
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[1682] | 91 | !> Diffusion term of the w-component |
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[1] | 92 | !------------------------------------------------------------------------------! |
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[1682] | 93 | MODULE diffusion_w_mod |
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| 94 | |
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[1] | 95 | |
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[1320] | 96 | USE wall_fluxes_mod, & |
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[2118] | 97 | ONLY : wall_fluxes |
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[56] | 98 | |
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[1] | 99 | PRIVATE |
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[2118] | 100 | PUBLIC diffusion_w |
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[1] | 101 | |
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| 102 | INTERFACE diffusion_w |
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| 103 | MODULE PROCEDURE diffusion_w |
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| 104 | MODULE PROCEDURE diffusion_w_ij |
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| 105 | END INTERFACE diffusion_w |
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| 106 | |
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| 107 | CONTAINS |
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| 108 | |
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| 109 | |
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| 110 | !------------------------------------------------------------------------------! |
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[1682] | 111 | ! Description: |
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| 112 | ! ------------ |
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| 113 | !> Call for all grid points |
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[1] | 114 | !------------------------------------------------------------------------------! |
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[1001] | 115 | SUBROUTINE diffusion_w |
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[1] | 116 | |
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[1320] | 117 | USE arrays_3d, & |
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[2037] | 118 | ONLY : ddzu, ddzw, km, tend, u, v, w, drho_air_zw, rho_air |
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[1320] | 119 | |
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| 120 | USE control_parameters, & |
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| 121 | ONLY : topography |
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| 122 | |
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| 123 | USE grid_variables, & |
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| 124 | ONLY : ddx, ddy, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y |
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| 125 | |
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| 126 | USE indices, & |
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| 127 | ONLY : nxl, nxr, nyn, nys, nzb, nzb_w_inner, nzb_w_outer, nzt |
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| 128 | |
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| 129 | USE kinds |
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[1] | 130 | |
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| 131 | IMPLICIT NONE |
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| 132 | |
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[1682] | 133 | INTEGER(iwp) :: i !< |
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| 134 | INTEGER(iwp) :: j !< |
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| 135 | INTEGER(iwp) :: k !< |
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[1320] | 136 | |
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[1682] | 137 | REAL(wp) :: kmxm !< |
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| 138 | REAL(wp) :: kmxp !< |
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| 139 | REAL(wp) :: kmym !< |
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| 140 | REAL(wp) :: kmyp !< |
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[1001] | 141 | |
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[1682] | 142 | REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsus !< |
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| 143 | REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsvs !< |
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[1] | 144 | |
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| 145 | |
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[56] | 146 | ! |
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| 147 | !-- First calculate horizontal momentum flux w'u' and/or w'v' at vertical |
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| 148 | !-- walls, if neccessary |
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| 149 | IF ( topography /= 'flat' ) THEN |
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[1320] | 150 | CALL wall_fluxes( wsus, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp, nzb_w_inner, & |
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[56] | 151 | nzb_w_outer, wall_w_x ) |
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[1320] | 152 | CALL wall_fluxes( wsvs, 0.0_wp, 0.0_wp, 1.0_wp, 0.0_wp, nzb_w_inner, & |
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[56] | 153 | nzb_w_outer, wall_w_y ) |
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| 154 | ENDIF |
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| 155 | |
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[1] | 156 | DO i = nxl, nxr |
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| 157 | DO j = nys, nyn |
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| 158 | DO k = nzb_w_outer(j,i)+1, nzt-1 |
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| 159 | ! |
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| 160 | !-- Interpolate eddy diffusivities on staggered gridpoints |
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[1322] | 161 | kmxp = 0.25_wp * & |
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[978] | 162 | ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) ) |
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[1322] | 163 | kmxm = 0.25_wp * & |
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[978] | 164 | ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) ) |
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[1322] | 165 | kmyp = 0.25_wp * & |
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[978] | 166 | ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) ) |
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[1322] | 167 | kmym = 0.25_wp * & |
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[978] | 168 | ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) ) |
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[1] | 169 | |
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| 170 | tend(k,j,i) = tend(k,j,i) & |
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[978] | 171 | & + ( kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx & |
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| 172 | & + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) & |
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| 173 | & - kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx & |
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| 174 | & - kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) & |
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[1] | 175 | & ) * ddx & |
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[978] | 176 | & + ( kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy & |
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| 177 | & + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) & |
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| 178 | & - kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy & |
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| 179 | & - kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) & |
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[1] | 180 | & ) * ddy & |
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[1322] | 181 | & + 2.0_wp * ( & |
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[1] | 182 | & km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) & |
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[2037] | 183 | & * rho_air(k+1) & |
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[1] | 184 | & - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) & |
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[2037] | 185 | & * rho_air(k) & |
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| 186 | & ) * ddzu(k+1) * drho_air_zw(k) |
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[1] | 187 | ENDDO |
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| 188 | |
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| 189 | ! |
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| 190 | !-- Wall functions at all vertical walls, where necessary |
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[1340] | 191 | IF ( wall_w_x(j,i) /= 0.0_wp .OR. wall_w_y(j,i) /= 0.0_wp ) THEN |
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[51] | 192 | |
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[1] | 193 | DO k = nzb_w_inner(j,i)+1, nzb_w_outer(j,i) |
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| 194 | ! |
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| 195 | !-- Interpolate eddy diffusivities on staggered gridpoints |
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[1322] | 196 | kmxp = 0.25_wp * & |
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[978] | 197 | ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) ) |
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[1322] | 198 | kmxm = 0.25_wp * & |
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[978] | 199 | ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) ) |
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[1322] | 200 | kmyp = 0.25_wp * & |
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[978] | 201 | ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) ) |
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[1322] | 202 | kmym = 0.25_wp * & |
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[978] | 203 | ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) ) |
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[1] | 204 | |
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| 205 | tend(k,j,i) = tend(k,j,i) & |
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| 206 | + ( fwxp(j,i) * ( & |
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[978] | 207 | kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx & |
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| 208 | + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) & |
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[1] | 209 | ) & |
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| 210 | - fwxm(j,i) * ( & |
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[978] | 211 | kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx & |
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| 212 | + kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) & |
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[1] | 213 | ) & |
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[56] | 214 | + wall_w_x(j,i) * wsus(k,j,i) & |
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[1] | 215 | ) * ddx & |
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| 216 | + ( fwyp(j,i) * ( & |
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[978] | 217 | kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy & |
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| 218 | + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) & |
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[1] | 219 | ) & |
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| 220 | - fwym(j,i) * ( & |
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[978] | 221 | kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy & |
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| 222 | + kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) & |
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[1] | 223 | ) & |
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[56] | 224 | + wall_w_y(j,i) * wsvs(k,j,i) & |
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[1] | 225 | ) * ddy & |
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[1340] | 226 | + 2.0_wp * ( & |
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[1] | 227 | km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) & |
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[2037] | 228 | * rho_air(k+1) & |
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[1] | 229 | - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) & |
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[2037] | 230 | * rho_air(k) & |
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| 231 | ) * ddzu(k+1) * drho_air_zw(k) |
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[1] | 232 | ENDDO |
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| 233 | ENDIF |
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| 234 | |
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| 235 | ENDDO |
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| 236 | ENDDO |
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| 237 | |
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| 238 | END SUBROUTINE diffusion_w |
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| 239 | |
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| 240 | |
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| 241 | !------------------------------------------------------------------------------! |
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[1682] | 242 | ! Description: |
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| 243 | ! ------------ |
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| 244 | !> Call for grid point i,j |
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[1] | 245 | !------------------------------------------------------------------------------! |
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[1001] | 246 | SUBROUTINE diffusion_w_ij( i, j ) |
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[1] | 247 | |
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[1320] | 248 | USE arrays_3d, & |
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[2037] | 249 | ONLY : ddzu, ddzw, km, tend, u, v, w, drho_air_zw, rho_air |
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[1320] | 250 | |
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| 251 | USE control_parameters, & |
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| 252 | ONLY : topography |
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| 253 | |
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| 254 | USE grid_variables, & |
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| 255 | ONLY : ddx, ddy, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y |
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| 256 | |
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| 257 | USE indices, & |
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| 258 | ONLY : nxl, nxr, nyn, nys, nzb, nzb_w_inner, nzb_w_outer, nzt |
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| 259 | |
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| 260 | USE kinds |
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[1] | 261 | |
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| 262 | IMPLICIT NONE |
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| 263 | |
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[1682] | 264 | INTEGER(iwp) :: i !< |
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| 265 | INTEGER(iwp) :: j !< |
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| 266 | INTEGER(iwp) :: k !< |
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[1320] | 267 | |
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[1682] | 268 | REAL(wp) :: kmxm !< |
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| 269 | REAL(wp) :: kmxp !< |
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| 270 | REAL(wp) :: kmym !< |
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| 271 | REAL(wp) :: kmyp !< |
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[1] | 272 | |
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[1320] | 273 | REAL(wp), DIMENSION(nzb:nzt+1) :: wsus |
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| 274 | REAL(wp), DIMENSION(nzb:nzt+1) :: wsvs |
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[1] | 275 | |
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[1001] | 276 | |
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[1] | 277 | DO k = nzb_w_outer(j,i)+1, nzt-1 |
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| 278 | ! |
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| 279 | !-- Interpolate eddy diffusivities on staggered gridpoints |
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[1322] | 280 | kmxp = 0.25_wp * ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) ) |
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| 281 | kmxm = 0.25_wp * ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) ) |
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| 282 | kmyp = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) ) |
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| 283 | kmym = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) ) |
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[1] | 284 | |
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| 285 | tend(k,j,i) = tend(k,j,i) & |
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[978] | 286 | & + ( kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx & |
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| 287 | & + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) & |
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| 288 | & - kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx & |
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| 289 | & - kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) & |
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[1] | 290 | & ) * ddx & |
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[978] | 291 | & + ( kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy & |
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| 292 | & + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) & |
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| 293 | & - kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy & |
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| 294 | & - kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) & |
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[1] | 295 | & ) * ddy & |
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[1322] | 296 | & + 2.0_wp * ( & |
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[1] | 297 | & km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) & |
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[2037] | 298 | & * rho_air(k+1) & |
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[1] | 299 | & - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) & |
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[2037] | 300 | & * rho_air(k) & |
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| 301 | & ) * ddzu(k+1) * drho_air_zw(k) |
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[1] | 302 | ENDDO |
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| 303 | |
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| 304 | ! |
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| 305 | !-- Wall functions at all vertical walls, where necessary |
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[1340] | 306 | IF ( wall_w_x(j,i) /= 0.0_wp .OR. wall_w_y(j,i) /= 0.0_wp ) THEN |
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[51] | 307 | |
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| 308 | ! |
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| 309 | !-- Calculate the horizontal momentum fluxes w'u' and/or w'v' |
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[1340] | 310 | IF ( wall_w_x(j,i) /= 0.0_wp ) THEN |
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[1320] | 311 | CALL wall_fluxes( i, j, nzb_w_inner(j,i)+1, nzb_w_outer(j,i), & |
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| 312 | wsus, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp ) |
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[51] | 313 | ELSE |
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[1340] | 314 | wsus = 0.0_wp |
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[51] | 315 | ENDIF |
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| 316 | |
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[1340] | 317 | IF ( wall_w_y(j,i) /= 0.0_wp ) THEN |
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[1320] | 318 | CALL wall_fluxes( i, j, nzb_w_inner(j,i)+1, nzb_w_outer(j,i), & |
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| 319 | wsvs, 0.0_wp, 0.0_wp, 1.0_wp, 0.0_wp ) |
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[51] | 320 | ELSE |
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[1340] | 321 | wsvs = 0.0_wp |
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[51] | 322 | ENDIF |
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| 323 | |
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[1] | 324 | DO k = nzb_w_inner(j,i)+1, nzb_w_outer(j,i) |
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| 325 | ! |
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| 326 | !-- Interpolate eddy diffusivities on staggered gridpoints |
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[1322] | 327 | kmxp = 0.25_wp * ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) ) |
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| 328 | kmxm = 0.25_wp * ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) ) |
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| 329 | kmyp = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) ) |
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| 330 | kmym = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) ) |
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[1] | 331 | |
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| 332 | tend(k,j,i) = tend(k,j,i) & |
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| 333 | + ( fwxp(j,i) * ( & |
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[978] | 334 | kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx & |
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| 335 | + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) & |
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[1] | 336 | ) & |
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| 337 | - fwxm(j,i) * ( & |
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[978] | 338 | kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx & |
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| 339 | + kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) & |
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[1] | 340 | ) & |
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[51] | 341 | + wall_w_x(j,i) * wsus(k) & |
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[1] | 342 | ) * ddx & |
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| 343 | + ( fwyp(j,i) * ( & |
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[978] | 344 | kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy & |
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| 345 | + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) & |
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[1] | 346 | ) & |
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| 347 | - fwym(j,i) * ( & |
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[978] | 348 | kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy & |
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| 349 | + kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) & |
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[1] | 350 | ) & |
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[51] | 351 | + wall_w_y(j,i) * wsvs(k) & |
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[1] | 352 | ) * ddy & |
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[1340] | 353 | + 2.0_wp * ( & |
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[1] | 354 | km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) & |
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[2037] | 355 | * rho_air(k+1) & |
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[1] | 356 | - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) & |
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[2037] | 357 | * rho_air(k) & |
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| 358 | ) * ddzu(k+1) * drho_air_zw(k) |
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[1] | 359 | ENDDO |
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| 360 | ENDIF |
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| 361 | |
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| 362 | END SUBROUTINE diffusion_w_ij |
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| 363 | |
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[1323] | 364 | END MODULE diffusion_w_mod |
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