[1682] | 1 | !> @file init_grid.f90 |
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[1743] | 2 | !-------------------------------------------------------------------------------! |
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[1036] | 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 terms |
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| 6 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 7 | ! either version 3 of the License, or (at your option) any later version. |
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| 8 | ! |
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| 9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 10 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 11 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 12 | ! |
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| 13 | ! You should have received a copy of the GNU General Public License along with |
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| 14 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 15 | ! |
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[1818] | 16 | ! Copyright 1997-2016 Leibniz Universitaet Hannover |
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[1743] | 17 | !-------------------------------------------------------------------------------! |
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[1036] | 18 | ! |
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[254] | 19 | ! Current revisions: |
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[1] | 20 | ! ----------------- |
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[1968] | 21 | ! Changed: PE-wise reading of topography file in order to avoid global definition |
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| 22 | ! of arrays nzb_local and nzb_tmp. Thereby, topography definition for single |
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| 23 | ! buildings and street canyons has changed, as well as flag setting for |
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| 24 | ! multigrid scheme. |
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| 25 | ! |
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| 26 | ! Bugfix in checking l_grid anisotropy. |
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| 27 | ! Simplify initial computation of lwall and vertical_influence, i.e. remove |
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| 28 | ! nzb_s_inner as it is still zero at this point. |
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[1932] | 29 | ! |
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[1321] | 30 | ! Former revisions: |
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| 31 | ! ----------------- |
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| 32 | ! $Id: init_grid.f90 1968 2016-07-18 12:01:49Z suehring $ |
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| 33 | ! |
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[1943] | 34 | ! 1942 2016-06-14 12:18:18Z suehring |
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| 35 | ! Topography filter implemented to fill holes resolved by only one grid point. |
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| 36 | ! Initialization of flags for ws-scheme moved to advec_ws. |
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| 37 | ! |
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[1932] | 38 | ! 1931 2016-06-10 12:06:59Z suehring |
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| 39 | ! Rename multigrid into multigrid_noopt and multigrid_fast into multigrid |
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| 40 | ! |
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[1911] | 41 | ! 1910 2016-05-26 06:49:46Z raasch |
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| 42 | ! Bugfix: if topography is read from file, Neumann conditions are used for the |
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| 43 | ! nzb_local array (instead of cyclic conditions) in case that non-cyclic |
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| 44 | ! boundary conditions are switched on for the run |
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| 45 | ! |
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[1903] | 46 | ! 1902 2016-05-09 11:18:56Z suehring |
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[1910] | 47 | ! Set topography flags for multigrid solver only (not for multigrid_fast) |
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[1903] | 48 | ! |
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[1887] | 49 | ! 1886 2016-04-21 11:20:47Z suehring |
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| 50 | ! Bugfix: setting advection flags near walls |
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| 51 | ! reformulated index values for nzb_v_inner |
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| 52 | ! variable discriptions added in declaration block |
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| 53 | ! |
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[1846] | 54 | ! 1845 2016-04-08 08:29:13Z raasch |
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| 55 | ! nzb_2d removed |
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| 56 | ! |
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[1805] | 57 | ! 1804 2016-04-05 16:30:18Z maronga |
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| 58 | ! Removed code for parameter file check (__check) |
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| 59 | ! |
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[1780] | 60 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 61 | ! coupling_char is trimmed at every place it occurs, because it can have |
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| 62 | ! different length now |
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| 63 | ! |
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[1763] | 64 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 65 | ! Introduction of nested domain feature |
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| 66 | ! |
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[1744] | 67 | ! 1743 2016-01-13 10:23:51Z raasch |
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| 68 | ! Bugfix for calculation of nzb_s_outer and nzb_u_outer at north boundary of |
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| 69 | ! total domain |
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| 70 | ! |
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[1692] | 71 | ! 1691 2015-10-26 16:17:44Z maronga |
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| 72 | ! Renamed prandtl_layer to constant_flux_layer. |
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| 73 | ! |
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[1683] | 74 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 75 | ! Code annotations made doxygen readable |
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| 76 | ! |
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[1678] | 77 | ! 1677 2015-10-02 13:25:23Z boeske |
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| 78 | ! Bugfix: Ghost points are included in wall_flags_0 and wall_flags_00 |
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| 79 | ! |
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[1676] | 80 | ! 1675 2015-10-02 08:28:59Z gronemeier |
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| 81 | ! Bugfix: Definition of topography grid levels |
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| 82 | ! |
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[1662] | 83 | ! 1660 2015-09-21 08:15:16Z gronemeier |
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| 84 | ! Bugfix: Definition of topography grid levels if vertical grid stretching |
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| 85 | ! starts below the maximum topography height. |
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| 86 | ! |
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[1581] | 87 | ! 1580 2015-04-10 13:43:49Z suehring |
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| 88 | ! Bugfix: setting flags for 5th order scheme near buildings |
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| 89 | ! |
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[1576] | 90 | ! 1575 2015-03-27 09:56:27Z raasch |
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| 91 | ! adjustments for psolver-queries |
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| 92 | ! |
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[1558] | 93 | ! 1557 2015-03-05 16:43:04Z suehring |
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| 94 | ! Adjustment for monotoinic limiter |
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| 95 | ! |
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[1419] | 96 | ! 1418 2014-06-06 13:05:08Z fricke |
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| 97 | ! Bugfix: Change if-condition for stretched grid in the ocean, with the old |
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| 98 | ! condition and a negative value for dz_stretch_level the condition |
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| 99 | ! was always true for the whole model domain |
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| 100 | ! |
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[1410] | 101 | ! 1409 2014-05-23 12:11:32Z suehring |
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| 102 | ! Bugfix: set wall_flags_0 at inflow and outflow boundary also for i <= nxlu |
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| 103 | ! j <= nysv |
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| 104 | ! |
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[1354] | 105 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 106 | ! REAL constants provided with KIND-attribute |
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| 107 | ! |
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[1323] | 108 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 109 | ! REAL constants defined as wp-kind |
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| 110 | ! |
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[1321] | 111 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 112 | ! ONLY-attribute added to USE-statements, |
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| 113 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 114 | ! kinds are defined in new module kinds, |
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| 115 | ! revision history before 2012 removed, |
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| 116 | ! comment fields (!:) to be used for variable explanations added to |
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| 117 | ! all variable declaration statements |
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[1321] | 118 | ! |
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[1222] | 119 | ! 1221 2013-09-10 08:59:13Z raasch |
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| 120 | ! wall_flags_00 introduced to hold bits 32-63, |
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| 121 | ! additional 3D-flag arrays for replacing the 2D-index array nzb_s_inner in |
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| 122 | ! loops optimized for openACC (pres + flow_statistics) |
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| 123 | ! |
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[1093] | 124 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 125 | ! unused variables removed |
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| 126 | ! |
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[1070] | 127 | ! 1069 2012-11-28 16:18:43Z maronga |
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[1779] | 128 | ! bugfix: added coupling_char to TOPOGRAPHY_DATA to allow topography in the |
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| 129 | ! ocean model in case of coupled runs |
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[1070] | 130 | ! |
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[1037] | 131 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 132 | ! code put under GPL (PALM 3.9) |
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| 133 | ! |
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[1017] | 134 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 135 | ! lower index for calculating wall_flags_0 set to nzb_w_inner instead of |
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| 136 | ! nzb_w_inner+1 |
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| 137 | ! |
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[997] | 138 | ! 996 2012-09-07 10:41:47Z raasch |
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| 139 | ! little reformatting |
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| 140 | ! |
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[979] | 141 | ! 978 2012-08-09 08:28:32Z fricke |
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| 142 | ! Bugfix: nzb_max is set to nzt at non-cyclic lateral boundaries |
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| 143 | ! Bugfix: Set wall_flags_0 for inflow boundary |
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| 144 | ! |
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[928] | 145 | ! 927 2012-06-06 19:15:04Z raasch |
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| 146 | ! Wall flags are not set for multigrid method in case of masking method |
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| 147 | ! |
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[865] | 148 | ! 864 2012-03-27 15:10:33Z gryschka |
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[927] | 149 | ! In case of ocean and Dirichlet bottom bc for u and v dzu_mg and ddzu_pres |
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| 150 | ! were not correctly defined for k=1. |
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[865] | 151 | ! |
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[863] | 152 | ! 861 2012-03-26 14:18:34Z suehring |
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[861] | 153 | ! Set wall_flags_0. The array is needed for degradation in ws-scheme near walls, |
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| 154 | ! inflow and outflow boundaries as well as near the bottom and the top of the |
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[863] | 155 | ! model domain.! |
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[861] | 156 | ! Initialization of nzb_s_inner and nzb_w_inner. |
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| 157 | ! gls has to be at least nbgp to do not exceed the array bounds of nzb_local |
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| 158 | ! while setting wall_flags_0 |
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| 159 | ! |
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[844] | 160 | ! 843 2012-02-29 15:16:21Z gryschka |
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| 161 | ! In case of ocean and dirichlet bc for u and v at the bottom |
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| 162 | ! the first u-level ist defined at same height as the first w-level |
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| 163 | ! |
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[819] | 164 | ! 818 2012-02-08 16:11:23Z maronga |
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| 165 | ! Bugfix: topo_height is only required if topography is used. It is thus now |
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| 166 | ! allocated in the topography branch |
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| 167 | ! |
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[810] | 168 | ! 809 2012-01-30 13:32:58Z maronga |
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| 169 | ! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives |
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| 170 | ! |
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[808] | 171 | ! 807 2012-01-25 11:53:51Z maronga |
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| 172 | ! New cpp directive "__check" implemented which is used by check_namelist_files |
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| 173 | ! |
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[1] | 174 | ! Revision 1.1 1997/08/11 06:17:45 raasch |
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| 175 | ! Initial revision (Testversion) |
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| 176 | ! |
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| 177 | ! |
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| 178 | ! Description: |
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| 179 | ! ------------ |
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[1682] | 180 | !> Creating grid depending constants |
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[1] | 181 | !------------------------------------------------------------------------------! |
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[1682] | 182 | SUBROUTINE init_grid |
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| 183 | |
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[1942] | 184 | USE advec_ws, & |
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| 185 | ONLY: ws_init_flags |
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[1] | 186 | |
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[1320] | 187 | USE arrays_3d, & |
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| 188 | ONLY: dd2zu, ddzu, ddzu_pres, ddzw, dzu, dzu_mg, dzw, dzw_mg, f1_mg, & |
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| 189 | f2_mg, f3_mg, l_grid, l_wall, zu, zw |
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| 190 | |
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[1353] | 191 | USE control_parameters, & |
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[1910] | 192 | ONLY: bc_lr_cyc, bc_ns_cyc, building_height, building_length_x, & |
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[1320] | 193 | building_length_y, building_wall_left, building_wall_south, & |
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| 194 | canyon_height, canyon_wall_left, canyon_wall_south, & |
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[1691] | 195 | canyon_width_x, canyon_width_y, constant_flux_layer, & |
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| 196 | coupling_char, dp_level_ind_b, dz, dz_max, dz_stretch_factor, & |
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[1968] | 197 | dz_stretch_level, dz_stretch_level_index, grid_level, ibc_uv_b, & |
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| 198 | io_blocks, io_group, inflow_l, inflow_n, inflow_r, inflow_s, & |
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[1691] | 199 | masking_method, maximum_grid_level, message_string, & |
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[1942] | 200 | momentum_advec, nest_domain, ocean, outflow_l, outflow_n, & |
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[1762] | 201 | outflow_r, outflow_s, psolver, scalar_advec, topography, & |
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[1691] | 202 | topography_grid_convention, use_surface_fluxes, use_top_fluxes, & |
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| 203 | wall_adjustment_factor |
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[1320] | 204 | |
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| 205 | USE grid_variables, & |
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| 206 | ONLY: ddx, ddx2, ddx2_mg, ddy, ddy2, ddy2_mg, dx, dx2, dy, dy2, fwxm, & |
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| 207 | fwxp, fwym, fwyp, fxm, fxp, fym, fyp, wall_e_x, wall_e_y, & |
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| 208 | wall_u, wall_v, wall_w_x, wall_w_y, zu_s_inner, zw_w_inner |
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| 209 | |
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| 210 | USE indices, & |
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[1942] | 211 | ONLY: flags, nbgp, nx, nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, & |
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| 212 | ny, nyn, nyng, nyn_mg, nys, nys_mg, nysg, nz, nzb, & |
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[1845] | 213 | nzb_diff, nzb_diff_s_inner, nzb_diff_s_outer, nzb_diff_u, & |
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| 214 | nzb_diff_v, nzb_max, nzb_s_inner, nzb_s_outer, nzb_u_inner, & |
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| 215 | nzb_u_outer, nzb_v_inner, nzb_v_outer, nzb_w_inner, & |
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| 216 | nzb_w_outer, nzt, nzt_diff, nzt_mg, rflags_invers, & |
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[1320] | 217 | rflags_s_inner, wall_flags_0, wall_flags_00, wall_flags_1, & |
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| 218 | wall_flags_10, wall_flags_2, wall_flags_3, wall_flags_4, & |
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| 219 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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| 220 | wall_flags_9 |
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| 221 | |
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| 222 | USE kinds |
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| 223 | |
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[1] | 224 | USE pegrid |
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| 225 | |
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| 226 | IMPLICIT NONE |
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| 227 | |
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[1968] | 228 | INTEGER(iwp) :: bh !< temporary vertical index of building height |
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| 229 | INTEGER(iwp) :: blx !< grid point number of building size along x |
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| 230 | INTEGER(iwp) :: bly !< grid point number of building size along y |
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| 231 | INTEGER(iwp) :: bxl !< index for left building wall |
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| 232 | INTEGER(iwp) :: bxr !< index for right building wall |
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| 233 | INTEGER(iwp) :: byn !< index for north building wall |
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| 234 | INTEGER(iwp) :: bys !< index for south building wall |
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| 235 | INTEGER(iwp) :: ch !< temporary vertical index for canyon height |
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| 236 | INTEGER(iwp) :: cwx !< grid point number of canyon size along x |
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| 237 | INTEGER(iwp) :: cwy !< grid point number of canyon size along y |
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| 238 | INTEGER(iwp) :: cxl !< index for left canyon wall |
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| 239 | INTEGER(iwp) :: cxr !< index for right canyon wall |
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| 240 | INTEGER(iwp) :: cyn !< index for north canyon wall |
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| 241 | INTEGER(iwp) :: cys !< index for south canyon wall |
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| 242 | INTEGER(iwp) :: i !< index variable along x |
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| 243 | INTEGER(iwp) :: ii !< loop variable for reading topography file |
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| 244 | INTEGER(iwp) :: inc !< incremental parameter for coarsening grid level |
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| 245 | INTEGER(iwp) :: j !< index variable along y |
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| 246 | INTEGER(iwp) :: k !< index variable along z |
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| 247 | INTEGER(iwp) :: l !< loop variable |
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| 248 | INTEGER(iwp) :: nxl_l !< index of left PE boundary for multigrid level |
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| 249 | INTEGER(iwp) :: nxr_l !< index of right PE boundary for multigrid level |
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| 250 | INTEGER(iwp) :: nyn_l !< index of north PE boundary for multigrid level |
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| 251 | INTEGER(iwp) :: nys_l !< index of south PE boundary for multigrid level |
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| 252 | INTEGER(iwp) :: nzb_local_max !< vertical grid index of maximum topography height |
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| 253 | INTEGER(iwp) :: nzb_local_min !< vertical grid index of minimum topography height |
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| 254 | INTEGER(iwp) :: nzb_si !< dummy index for local nzb_s_inner |
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| 255 | INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level |
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| 256 | INTEGER(iwp) :: num_hole !< number of holes (in topography) resolved by only one grid point |
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| 257 | INTEGER(iwp) :: num_hole_l !< number of holes (in topography) resolved by only one grid point on local PE |
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| 258 | INTEGER(iwp) :: num_wall !< number of surrounding vertical walls for a single grid point |
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| 259 | INTEGER(iwp) :: skip_n_rows !< counting variable to skip rows while reading topography file |
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| 260 | INTEGER(iwp) :: vi !< dummy for vertical influence |
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[1] | 261 | |
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[1886] | 262 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: & |
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[1931] | 263 | vertical_influence !< number of vertical grid points above obstacle where adjustment of near-wall mixing length is required |
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[1886] | 264 | |
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[1968] | 265 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: corner_nl !< index of north-left corner location to limit near-wall mixing length |
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| 266 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: corner_nr !< north-right |
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| 267 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: corner_sl !< south-left |
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| 268 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: corner_sr !< south-right |
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| 269 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
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| 270 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_tmp !< dummy to calculate topography indices on u- and v-grid |
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| 271 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: wall_l !< distance to adjacent left-facing wall |
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| 272 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: wall_n !< north-facing |
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| 273 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: wall_r !< right-facing |
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| 274 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: wall_s !< right-facing |
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[1] | 275 | |
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[1968] | 276 | REAL(wp) :: dum !< dummy variable to skip columns while reading topography file |
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[1886] | 277 | REAL(wp) :: dx_l !< grid spacing along x on different multigrid level |
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| 278 | REAL(wp) :: dy_l !< grid spacing along y on different multigrid level |
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| 279 | REAL(wp) :: dz_stretched !< stretched vertical grid spacing |
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[861] | 280 | |
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[1968] | 281 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: topo_height !< input variable for topography height |
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| 282 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: zu_s_inner_l !< dummy array on global scale to write topography output array |
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| 283 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: zw_w_inner_l !< dummy array on global scale to write topography output array |
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[1] | 284 | |
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[667] | 285 | |
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[1] | 286 | ! |
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[709] | 287 | !-- Calculation of horizontal array bounds including ghost layers |
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[667] | 288 | nxlg = nxl - nbgp |
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| 289 | nxrg = nxr + nbgp |
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| 290 | nysg = nys - nbgp |
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| 291 | nyng = nyn + nbgp |
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[709] | 292 | |
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[667] | 293 | ! |
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[1] | 294 | !-- Allocate grid arrays |
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[1353] | 295 | ALLOCATE( ddzu(1:nzt+1), ddzw(1:nzt+1), dd2zu(1:nzt), dzu(1:nzt+1), & |
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[667] | 296 | dzw(1:nzt+1), l_grid(1:nzt), zu(nzb:nzt+1), zw(nzb:nzt+1) ) |
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[1] | 297 | |
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| 298 | ! |
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| 299 | !-- Compute height of u-levels from constant grid length and dz stretch factors |
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[1353] | 300 | IF ( dz == -1.0_wp ) THEN |
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[254] | 301 | message_string = 'missing dz' |
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| 302 | CALL message( 'init_grid', 'PA0200', 1, 2, 0, 6, 0 ) |
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[1353] | 303 | ELSEIF ( dz <= 0.0_wp ) THEN |
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[254] | 304 | WRITE( message_string, * ) 'dz=',dz,' <= 0.0' |
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| 305 | CALL message( 'init_grid', 'PA0201', 1, 2, 0, 6, 0 ) |
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[1] | 306 | ENDIF |
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[94] | 307 | |
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[1] | 308 | ! |
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[94] | 309 | !-- Define the vertical grid levels |
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| 310 | IF ( .NOT. ocean ) THEN |
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| 311 | ! |
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| 312 | !-- Grid for atmosphere with surface at z=0 (k=0, w-grid). |
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[843] | 313 | !-- The second u-level (k=1) corresponds to the top of the |
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[94] | 314 | !-- Prandtl-layer. |
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[667] | 315 | |
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| 316 | IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN |
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[1353] | 317 | zu(0) = 0.0_wp |
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| 318 | ! zu(0) = - dz * 0.5_wp |
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[667] | 319 | ELSE |
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[1353] | 320 | zu(0) = - dz * 0.5_wp |
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[667] | 321 | ENDIF |
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[1353] | 322 | zu(1) = dz * 0.5_wp |
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[1] | 323 | |
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[94] | 324 | dz_stretch_level_index = nzt+1 |
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| 325 | dz_stretched = dz |
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| 326 | DO k = 2, nzt+1 |
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| 327 | IF ( dz_stretch_level <= zu(k-1) .AND. dz_stretched < dz_max ) THEN |
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| 328 | dz_stretched = dz_stretched * dz_stretch_factor |
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| 329 | dz_stretched = MIN( dz_stretched, dz_max ) |
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| 330 | IF ( dz_stretch_level_index == nzt+1 ) dz_stretch_level_index = k-1 |
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| 331 | ENDIF |
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| 332 | zu(k) = zu(k-1) + dz_stretched |
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| 333 | ENDDO |
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[1] | 334 | |
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| 335 | ! |
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[94] | 336 | !-- Compute the w-levels. They are always staggered half-way between the |
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[843] | 337 | !-- corresponding u-levels. In case of dirichlet bc for u and v at the |
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| 338 | !-- ground the first u- and w-level (k=0) are defined at same height (z=0). |
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| 339 | !-- The top w-level is extrapolated linearly. |
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[1353] | 340 | zw(0) = 0.0_wp |
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[94] | 341 | DO k = 1, nzt |
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[1353] | 342 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
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[94] | 343 | ENDDO |
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[1353] | 344 | zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) |
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[1] | 345 | |
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[94] | 346 | ELSE |
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[1] | 347 | ! |
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[843] | 348 | !-- Grid for ocean with free water surface is at k=nzt (w-grid). |
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| 349 | !-- In case of neumann bc at the ground the first first u-level (k=0) lies |
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| 350 | !-- below the first w-level (k=0). In case of dirichlet bc the first u- and |
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| 351 | !-- w-level are defined at same height, but staggered from the second level. |
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| 352 | !-- The second u-level (k=1) corresponds to the top of the Prandtl-layer. |
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[1353] | 353 | zu(nzt+1) = dz * 0.5_wp |
---|
| 354 | zu(nzt) = - dz * 0.5_wp |
---|
[94] | 355 | |
---|
| 356 | dz_stretch_level_index = 0 |
---|
| 357 | dz_stretched = dz |
---|
| 358 | DO k = nzt-1, 0, -1 |
---|
[1418] | 359 | ! |
---|
| 360 | !-- The default value of dz_stretch_level is positive, thus the first |
---|
| 361 | !-- condition is always true. Hence, the second condition is necessary. |
---|
| 362 | IF ( dz_stretch_level >= zu(k+1) .AND. dz_stretch_level <= 0.0 & |
---|
| 363 | .AND. dz_stretched < dz_max ) THEN |
---|
[94] | 364 | dz_stretched = dz_stretched * dz_stretch_factor |
---|
| 365 | dz_stretched = MIN( dz_stretched, dz_max ) |
---|
| 366 | IF ( dz_stretch_level_index == 0 ) dz_stretch_level_index = k+1 |
---|
| 367 | ENDIF |
---|
| 368 | zu(k) = zu(k+1) - dz_stretched |
---|
| 369 | ENDDO |
---|
| 370 | |
---|
| 371 | ! |
---|
| 372 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 373 | !-- corresponding u-levels, except in case of dirichlet bc for u and v |
---|
| 374 | !-- at the ground. In this case the first u- and w-level are defined at |
---|
| 375 | !-- same height. The top w-level (nzt+1) is not used but set for |
---|
| 376 | !-- consistency, since w and all scalar variables are defined up tp nzt+1. |
---|
[94] | 377 | zw(nzt+1) = dz |
---|
[1353] | 378 | zw(nzt) = 0.0_wp |
---|
[94] | 379 | DO k = 0, nzt |
---|
[1353] | 380 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 381 | ENDDO |
---|
| 382 | |
---|
[843] | 383 | ! |
---|
| 384 | !-- In case of dirichlet bc for u and v the first u- and w-level are defined |
---|
| 385 | !-- at same height. |
---|
| 386 | IF ( ibc_uv_b == 0 ) THEN |
---|
| 387 | zu(0) = zw(0) |
---|
| 388 | ENDIF |
---|
| 389 | |
---|
[94] | 390 | ENDIF |
---|
| 391 | |
---|
| 392 | ! |
---|
[1] | 393 | !-- Compute grid lengths. |
---|
| 394 | DO k = 1, nzt+1 |
---|
| 395 | dzu(k) = zu(k) - zu(k-1) |
---|
[1353] | 396 | ddzu(k) = 1.0_wp / dzu(k) |
---|
[1] | 397 | dzw(k) = zw(k) - zw(k-1) |
---|
[1353] | 398 | ddzw(k) = 1.0_wp / dzw(k) |
---|
[1] | 399 | ENDDO |
---|
| 400 | |
---|
| 401 | DO k = 1, nzt |
---|
[1353] | 402 | dd2zu(k) = 1.0_wp / ( dzu(k) + dzu(k+1) ) |
---|
[1] | 403 | ENDDO |
---|
[667] | 404 | |
---|
| 405 | ! |
---|
[709] | 406 | !-- The FFT- SOR-pressure solvers assume grid spacings of a staggered grid |
---|
| 407 | !-- everywhere. For the actual grid, the grid spacing at the lowest level |
---|
| 408 | !-- is only dz/2, but should be dz. Therefore, an additional array |
---|
| 409 | !-- containing with appropriate grid information is created for these |
---|
| 410 | !-- solvers. |
---|
[1575] | 411 | IF ( psolver(1:9) /= 'multigrid' ) THEN |
---|
[667] | 412 | ALLOCATE( ddzu_pres(1:nzt+1) ) |
---|
| 413 | ddzu_pres = ddzu |
---|
[864] | 414 | ddzu_pres(1) = ddzu_pres(2) ! change for lowest level |
---|
[667] | 415 | ENDIF |
---|
[1] | 416 | |
---|
| 417 | ! |
---|
| 418 | !-- In case of multigrid method, compute grid lengths and grid factors for the |
---|
| 419 | !-- grid levels |
---|
[1575] | 420 | IF ( psolver(1:9) == 'multigrid' ) THEN |
---|
[1] | 421 | |
---|
| 422 | ALLOCATE( ddx2_mg(maximum_grid_level), ddy2_mg(maximum_grid_level), & |
---|
| 423 | dzu_mg(nzb+1:nzt+1,maximum_grid_level), & |
---|
| 424 | dzw_mg(nzb+1:nzt+1,maximum_grid_level), & |
---|
| 425 | f1_mg(nzb+1:nzt,maximum_grid_level), & |
---|
| 426 | f2_mg(nzb+1:nzt,maximum_grid_level), & |
---|
| 427 | f3_mg(nzb+1:nzt,maximum_grid_level) ) |
---|
| 428 | |
---|
| 429 | dzu_mg(:,maximum_grid_level) = dzu |
---|
[667] | 430 | ! |
---|
[864] | 431 | !-- Next line to ensure an equally spaced grid. |
---|
| 432 | dzu_mg(1,maximum_grid_level) = dzu(2) |
---|
[709] | 433 | |
---|
[1] | 434 | dzw_mg(:,maximum_grid_level) = dzw |
---|
| 435 | nzt_l = nzt |
---|
| 436 | DO l = maximum_grid_level-1, 1, -1 |
---|
[1353] | 437 | dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1) |
---|
| 438 | dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1) |
---|
[1] | 439 | nzt_l = nzt_l / 2 |
---|
| 440 | DO k = 2, nzt_l+1 |
---|
| 441 | dzu_mg(k,l) = dzu_mg(2*k-2,l+1) + dzu_mg(2*k-1,l+1) |
---|
| 442 | dzw_mg(k,l) = dzw_mg(2*k-2,l+1) + dzw_mg(2*k-1,l+1) |
---|
| 443 | ENDDO |
---|
| 444 | ENDDO |
---|
| 445 | |
---|
| 446 | nzt_l = nzt |
---|
| 447 | dx_l = dx |
---|
| 448 | dy_l = dy |
---|
| 449 | DO l = maximum_grid_level, 1, -1 |
---|
[1353] | 450 | ddx2_mg(l) = 1.0_wp / dx_l**2 |
---|
| 451 | ddy2_mg(l) = 1.0_wp / dy_l**2 |
---|
[1] | 452 | DO k = nzb+1, nzt_l |
---|
[1353] | 453 | f2_mg(k,l) = 1.0_wp / ( dzu_mg(k+1,l) * dzw_mg(k,l) ) |
---|
| 454 | f3_mg(k,l) = 1.0_wp / ( dzu_mg(k,l) * dzw_mg(k,l) ) |
---|
| 455 | f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) + & |
---|
[1] | 456 | f2_mg(k,l) + f3_mg(k,l) |
---|
| 457 | ENDDO |
---|
| 458 | nzt_l = nzt_l / 2 |
---|
[1353] | 459 | dx_l = dx_l * 2.0_wp |
---|
| 460 | dy_l = dy_l * 2.0_wp |
---|
[1] | 461 | ENDDO |
---|
| 462 | |
---|
| 463 | ENDIF |
---|
| 464 | |
---|
| 465 | ! |
---|
| 466 | !-- Compute the reciprocal values of the horizontal grid lengths. |
---|
[1353] | 467 | ddx = 1.0_wp / dx |
---|
| 468 | ddy = 1.0_wp / dy |
---|
[1] | 469 | dx2 = dx * dx |
---|
| 470 | dy2 = dy * dy |
---|
[1353] | 471 | ddx2 = 1.0_wp / dx2 |
---|
| 472 | ddy2 = 1.0_wp / dy2 |
---|
[1] | 473 | |
---|
| 474 | ! |
---|
| 475 | !-- Compute the grid-dependent mixing length. |
---|
| 476 | DO k = 1, nzt |
---|
[1322] | 477 | l_grid(k) = ( dx * dy * dzw(k) )**0.33333333333333_wp |
---|
[1] | 478 | ENDDO |
---|
| 479 | |
---|
| 480 | ! |
---|
| 481 | !-- Allocate outer and inner index arrays for topography and set |
---|
[114] | 482 | !-- defaults. |
---|
[667] | 483 | |
---|
[114] | 484 | ALLOCATE( corner_nl(nys:nyn,nxl:nxr), corner_nr(nys:nyn,nxl:nxr), & |
---|
| 485 | corner_sl(nys:nyn,nxl:nxr), corner_sr(nys:nyn,nxl:nxr), & |
---|
| 486 | wall_l(nys:nyn,nxl:nxr), wall_n(nys:nyn,nxl:nxr), & |
---|
[1968] | 487 | wall_r(nys:nyn,nxl:nxr), wall_s(nys:nyn,nxl:nxr) ) |
---|
| 488 | |
---|
[667] | 489 | ALLOCATE( fwxm(nysg:nyng,nxlg:nxrg), fwxp(nysg:nyng,nxlg:nxrg), & |
---|
| 490 | fwym(nysg:nyng,nxlg:nxrg), fwyp(nysg:nyng,nxlg:nxrg), & |
---|
| 491 | fxm(nysg:nyng,nxlg:nxrg), fxp(nysg:nyng,nxlg:nxrg), & |
---|
| 492 | fym(nysg:nyng,nxlg:nxrg), fyp(nysg:nyng,nxlg:nxrg), & |
---|
| 493 | nzb_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 494 | nzb_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 495 | nzb_u_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 496 | nzb_u_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 497 | nzb_v_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 498 | nzb_v_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 499 | nzb_w_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 500 | nzb_w_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 501 | nzb_diff_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 502 | nzb_diff_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 503 | nzb_diff_u(nysg:nyng,nxlg:nxrg), & |
---|
| 504 | nzb_diff_v(nysg:nyng,nxlg:nxrg), & |
---|
[1968] | 505 | nzb_local(nysg:nyng,nxlg:nxrg), & |
---|
| 506 | nzb_tmp(nysg:nyng,nxlg:nxrg), & |
---|
[1221] | 507 | rflags_s_inner(nzb:nzt+2,nysg:nyng,nxlg:nxrg), & |
---|
| 508 | rflags_invers(nysg:nyng,nxlg:nxrg,nzb:nzt+2), & |
---|
[667] | 509 | wall_e_x(nysg:nyng,nxlg:nxrg), & |
---|
| 510 | wall_e_y(nysg:nyng,nxlg:nxrg), & |
---|
| 511 | wall_u(nysg:nyng,nxlg:nxrg), & |
---|
| 512 | wall_v(nysg:nyng,nxlg:nxrg), & |
---|
| 513 | wall_w_x(nysg:nyng,nxlg:nxrg), & |
---|
| 514 | wall_w_y(nysg:nyng,nxlg:nxrg) ) |
---|
[1] | 515 | |
---|
| 516 | |
---|
[667] | 517 | |
---|
| 518 | ALLOCATE( l_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 519 | |
---|
[818] | 520 | |
---|
[1] | 521 | nzb_s_inner = nzb; nzb_s_outer = nzb |
---|
| 522 | nzb_u_inner = nzb; nzb_u_outer = nzb |
---|
| 523 | nzb_v_inner = nzb; nzb_v_outer = nzb |
---|
| 524 | nzb_w_inner = nzb; nzb_w_outer = nzb |
---|
| 525 | |
---|
[1353] | 526 | rflags_s_inner = 1.0_wp |
---|
| 527 | rflags_invers = 1.0_wp |
---|
[1221] | 528 | |
---|
[1] | 529 | ! |
---|
[19] | 530 | !-- Define vertical gridpoint from (or to) which on the usual finite difference |
---|
[1] | 531 | !-- form (which does not use surface fluxes) is applied |
---|
[1691] | 532 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 533 | nzb_diff = nzb + 2 |
---|
| 534 | ELSE |
---|
| 535 | nzb_diff = nzb + 1 |
---|
| 536 | ENDIF |
---|
[19] | 537 | IF ( use_top_fluxes ) THEN |
---|
| 538 | nzt_diff = nzt - 1 |
---|
| 539 | ELSE |
---|
| 540 | nzt_diff = nzt |
---|
| 541 | ENDIF |
---|
[1] | 542 | |
---|
| 543 | nzb_diff_s_inner = nzb_diff; nzb_diff_s_outer = nzb_diff |
---|
| 544 | nzb_diff_u = nzb_diff; nzb_diff_v = nzb_diff |
---|
| 545 | |
---|
[1353] | 546 | wall_e_x = 0.0_wp; wall_e_y = 0.0_wp; wall_u = 0.0_wp; wall_v = 0.0_wp |
---|
| 547 | wall_w_x = 0.0_wp; wall_w_y = 0.0_wp |
---|
| 548 | fwxp = 1.0_wp; fwxm = 1.0_wp; fwyp = 1.0_wp; fwym = 1.0_wp |
---|
| 549 | fxp = 1.0_wp; fxm = 1.0_wp; fyp = 1.0_wp; fym = 1.0_wp |
---|
[1] | 550 | |
---|
| 551 | ! |
---|
| 552 | !-- Initialize near-wall mixing length l_wall only in the vertical direction |
---|
| 553 | !-- for the moment, |
---|
| 554 | !-- multiplication with wall_adjustment_factor near the end of this routine |
---|
| 555 | l_wall(nzb,:,:) = l_grid(1) |
---|
| 556 | DO k = nzb+1, nzt |
---|
| 557 | l_wall(k,:,:) = l_grid(k) |
---|
| 558 | ENDDO |
---|
| 559 | l_wall(nzt+1,:,:) = l_grid(nzt) |
---|
| 560 | |
---|
| 561 | ALLOCATE ( vertical_influence(nzb:nzt) ) |
---|
| 562 | DO k = 1, nzt |
---|
| 563 | vertical_influence(k) = MIN ( INT( l_grid(k) / & |
---|
[1353] | 564 | ( wall_adjustment_factor * dzw(k) ) + 0.5_wp ), nzt - k ) |
---|
[1] | 565 | ENDDO |
---|
| 566 | |
---|
[1968] | 567 | DO k = 1, nzt |
---|
[1353] | 568 | IF ( l_grid(k) > 1.5_wp * dx * wall_adjustment_factor .OR. & |
---|
| 569 | l_grid(k) > 1.5_wp * dy * wall_adjustment_factor ) THEN |
---|
[254] | 570 | WRITE( message_string, * ) 'grid anisotropy exceeds ', & |
---|
| 571 | 'threshold given by only local', & |
---|
| 572 | ' &horizontal reduction of near_wall ', & |
---|
| 573 | 'mixing length l_wall', & |
---|
| 574 | ' &starting from height level k = ', k, '.' |
---|
| 575 | CALL message( 'init_grid', 'PA0202', 0, 1, 0, 6, 0 ) |
---|
[1] | 576 | EXIT |
---|
| 577 | ENDIF |
---|
| 578 | ENDDO |
---|
| 579 | vertical_influence(0) = vertical_influence(1) |
---|
| 580 | |
---|
[1968] | 581 | DO k = nzb + 1, nzb + vertical_influence(nzb) |
---|
| 582 | l_wall(k,:,:) = zu(k) - zw(nzb) |
---|
[1] | 583 | ENDDO |
---|
| 584 | |
---|
| 585 | ! |
---|
| 586 | !-- Set outer and inner index arrays for non-flat topography. |
---|
| 587 | !-- Here consistency checks concerning domain size and periodicity are |
---|
| 588 | !-- necessary. |
---|
| 589 | !-- Within this SELECT CASE structure only nzb_local is initialized |
---|
| 590 | !-- individually depending on the chosen topography type, all other index |
---|
| 591 | !-- arrays are initialized further below. |
---|
| 592 | SELECT CASE ( TRIM( topography ) ) |
---|
| 593 | |
---|
| 594 | CASE ( 'flat' ) |
---|
| 595 | ! |
---|
[555] | 596 | !-- nzb_local is required for the multigrid solver |
---|
| 597 | nzb_local = 0 |
---|
[1] | 598 | |
---|
| 599 | CASE ( 'single_building' ) |
---|
| 600 | ! |
---|
| 601 | !-- Single rectangular building, by default centered in the middle of the |
---|
| 602 | !-- total domain |
---|
| 603 | blx = NINT( building_length_x / dx ) |
---|
| 604 | bly = NINT( building_length_y / dy ) |
---|
[1675] | 605 | bh = MINLOC( ABS( zw - building_height ), 1 ) - 1 |
---|
| 606 | IF ( ABS( zw(bh ) - building_height ) == & |
---|
| 607 | ABS( zw(bh+1) - building_height ) ) bh = bh + 1 |
---|
[1] | 608 | |
---|
[1322] | 609 | IF ( building_wall_left == 9999999.9_wp ) THEN |
---|
[1] | 610 | building_wall_left = ( nx + 1 - blx ) / 2 * dx |
---|
| 611 | ENDIF |
---|
| 612 | bxl = NINT( building_wall_left / dx ) |
---|
| 613 | bxr = bxl + blx |
---|
| 614 | |
---|
[1322] | 615 | IF ( building_wall_south == 9999999.9_wp ) THEN |
---|
[1] | 616 | building_wall_south = ( ny + 1 - bly ) / 2 * dy |
---|
| 617 | ENDIF |
---|
| 618 | bys = NINT( building_wall_south / dy ) |
---|
| 619 | byn = bys + bly |
---|
| 620 | |
---|
| 621 | ! |
---|
| 622 | !-- Building size has to meet some requirements |
---|
| 623 | IF ( ( bxl < 1 ) .OR. ( bxr > nx-1 ) .OR. ( bxr < bxl+3 ) .OR. & |
---|
| 624 | ( bys < 1 ) .OR. ( byn > ny-1 ) .OR. ( byn < bys+3 ) ) THEN |
---|
[274] | 625 | WRITE( message_string, * ) 'inconsistent building parameters:', & |
---|
| 626 | '& bxl=', bxl, 'bxr=', bxr, 'bys=', bys, & |
---|
| 627 | 'byn=', byn, 'nx=', nx, 'ny=', ny |
---|
[254] | 628 | CALL message( 'init_grid', 'PA0203', 1, 2, 0, 6, 0 ) |
---|
[1] | 629 | ENDIF |
---|
| 630 | |
---|
| 631 | ! |
---|
[1968] | 632 | !-- Define the building. |
---|
[1] | 633 | nzb_local = 0 |
---|
[1968] | 634 | IF ( bxl <= nxr .AND. bxr >= nxl .AND. & |
---|
| 635 | bys <= nyn .AND. byn >= nys ) & |
---|
| 636 | nzb_local(MAX(nys,bys):MIN(nyn,byn),MAX(nxl,bxl):MIN(nxr,bxr)) = bh |
---|
[1] | 637 | |
---|
[240] | 638 | CASE ( 'single_street_canyon' ) |
---|
| 639 | ! |
---|
| 640 | !-- Single quasi-2D street canyon of infinite length in x or y direction. |
---|
| 641 | !-- The canyon is centered in the other direction by default. |
---|
[1322] | 642 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[240] | 643 | ! |
---|
| 644 | !-- Street canyon in y direction |
---|
| 645 | cwx = NINT( canyon_width_x / dx ) |
---|
[1322] | 646 | IF ( canyon_wall_left == 9999999.9_wp ) THEN |
---|
[240] | 647 | canyon_wall_left = ( nx + 1 - cwx ) / 2 * dx |
---|
| 648 | ENDIF |
---|
| 649 | cxl = NINT( canyon_wall_left / dx ) |
---|
| 650 | cxr = cxl + cwx |
---|
| 651 | |
---|
[1322] | 652 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[240] | 653 | ! |
---|
| 654 | !-- Street canyon in x direction |
---|
| 655 | cwy = NINT( canyon_width_y / dy ) |
---|
[1322] | 656 | IF ( canyon_wall_south == 9999999.9_wp ) THEN |
---|
[240] | 657 | canyon_wall_south = ( ny + 1 - cwy ) / 2 * dy |
---|
| 658 | ENDIF |
---|
| 659 | cys = NINT( canyon_wall_south / dy ) |
---|
| 660 | cyn = cys + cwy |
---|
| 661 | |
---|
| 662 | ELSE |
---|
[254] | 663 | |
---|
| 664 | message_string = 'no street canyon width given' |
---|
| 665 | CALL message( 'init_grid', 'PA0204', 1, 2, 0, 6, 0 ) |
---|
| 666 | |
---|
[240] | 667 | ENDIF |
---|
| 668 | |
---|
[1675] | 669 | ch = MINLOC( ABS( zw - canyon_height ), 1 ) - 1 |
---|
| 670 | IF ( ABS( zw(ch ) - canyon_height ) == & |
---|
| 671 | ABS( zw(ch+1) - canyon_height ) ) ch = ch + 1 |
---|
| 672 | |
---|
[240] | 673 | dp_level_ind_b = ch |
---|
| 674 | ! |
---|
| 675 | !-- Street canyon size has to meet some requirements |
---|
[1322] | 676 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1353] | 677 | IF ( ( cxl < 1 ) .OR. ( cxr > nx-1 ) .OR. ( cwx < 3 ) .OR. & |
---|
[240] | 678 | ( ch < 3 ) ) THEN |
---|
[1353] | 679 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 680 | '&cxl=', cxl, 'cxr=', cxr, & |
---|
| 681 | 'cwx=', cwx, & |
---|
[254] | 682 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 683 | CALL message( 'init_grid', 'PA0205', 1, 2, 0, 6, 0 ) |
---|
[240] | 684 | ENDIF |
---|
[1322] | 685 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1353] | 686 | IF ( ( cys < 1 ) .OR. ( cyn > ny-1 ) .OR. ( cwy < 3 ) .OR. & |
---|
[240] | 687 | ( ch < 3 ) ) THEN |
---|
[1353] | 688 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 689 | '&cys=', cys, 'cyn=', cyn, & |
---|
| 690 | 'cwy=', cwy, & |
---|
[254] | 691 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 692 | CALL message( 'init_grid', 'PA0206', 1, 2, 0, 6, 0 ) |
---|
[240] | 693 | ENDIF |
---|
| 694 | ENDIF |
---|
[1353] | 695 | IF ( canyon_width_x /= 9999999.9_wp .AND. & |
---|
| 696 | canyon_width_y /= 9999999.9_wp ) THEN |
---|
| 697 | message_string = 'inconsistent canyon parameters:' // & |
---|
| 698 | '&street canyon can only be oriented' // & |
---|
[254] | 699 | '&either in x- or in y-direction' |
---|
| 700 | CALL message( 'init_grid', 'PA0207', 1, 2, 0, 6, 0 ) |
---|
[240] | 701 | ENDIF |
---|
| 702 | |
---|
| 703 | nzb_local = ch |
---|
[1322] | 704 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1968] | 705 | IF ( cxl <= nxr .AND. cxr >= nxl ) & |
---|
| 706 | nzb_local(:,MAX(nxl,cxl+1):MIN(nxr,cxr-1)) = 0 |
---|
[1322] | 707 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1968] | 708 | IF ( cys <= nyn .AND. cyn >= nys ) & |
---|
| 709 | nzb_local(MAX(nys,cys+1):MIN(nyn,cyn-1),:) = 0 |
---|
[240] | 710 | ENDIF |
---|
| 711 | |
---|
[1] | 712 | CASE ( 'read_from_file' ) |
---|
[759] | 713 | |
---|
[1968] | 714 | ALLOCATE ( topo_height(nys:nyn,nxl:nxr) ) |
---|
[818] | 715 | |
---|
[759] | 716 | DO ii = 0, io_blocks-1 |
---|
| 717 | IF ( ii == io_group ) THEN |
---|
| 718 | |
---|
[1] | 719 | ! |
---|
[759] | 720 | !-- Arbitrary irregular topography data in PALM format (exactly |
---|
| 721 | !-- matching the grid size and total domain size) |
---|
[1779] | 722 | OPEN( 90, FILE='TOPOGRAPHY_DATA'//TRIM( coupling_char ), & |
---|
| 723 | STATUS='OLD', FORM='FORMATTED', ERR=10 ) |
---|
[1968] | 724 | ! |
---|
| 725 | !-- Read topography PE-wise. Rows are read from nyn to nys, columns |
---|
| 726 | !-- are read from nxl to nxr. At first, ny-nyn rows need to be skipped. |
---|
| 727 | skip_n_rows = 0 |
---|
| 728 | DO WHILE ( skip_n_rows < ny - nyn ) |
---|
| 729 | READ( 90, * ) |
---|
| 730 | skip_n_rows = skip_n_rows + 1 |
---|
[759] | 731 | ENDDO |
---|
[1968] | 732 | ! |
---|
| 733 | !-- Read data from nyn to nys and nxl to nxr. Therefore, skip |
---|
| 734 | !-- column until nxl-1 is reached |
---|
| 735 | DO j = nyn, nys, -1 |
---|
| 736 | READ( 90, *, ERR=11, END=11 ) & |
---|
| 737 | ( dum, i = 0, nxl-1 ), & |
---|
| 738 | ( topo_height(j,i), i = nxl, nxr ) |
---|
| 739 | ENDDO |
---|
[759] | 740 | |
---|
| 741 | GOTO 12 |
---|
| 742 | |
---|
[1779] | 743 | 10 message_string = 'file TOPOGRAPHY'//TRIM( coupling_char )// & |
---|
| 744 | ' does not exist' |
---|
[759] | 745 | CALL message( 'init_grid', 'PA0208', 1, 2, 0, 6, 0 ) |
---|
| 746 | |
---|
[1779] | 747 | 11 message_string = 'errors in file TOPOGRAPHY_DATA'// & |
---|
| 748 | TRIM( coupling_char ) |
---|
[759] | 749 | CALL message( 'init_grid', 'PA0209', 1, 2, 0, 6, 0 ) |
---|
| 750 | |
---|
| 751 | 12 CLOSE( 90 ) |
---|
| 752 | |
---|
| 753 | ENDIF |
---|
[1804] | 754 | #if defined( __parallel ) |
---|
[759] | 755 | CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 756 | #endif |
---|
[559] | 757 | ENDDO |
---|
[759] | 758 | |
---|
[1] | 759 | ! |
---|
| 760 | !-- Calculate the index height of the topography |
---|
[1968] | 761 | nzb_local = 0 |
---|
| 762 | DO i = nxl, nxr |
---|
| 763 | DO j = nys, nyn |
---|
[1675] | 764 | nzb_local(j,i) = MINLOC( ABS( zw - topo_height(j,i) ), 1 ) - 1 |
---|
| 765 | IF ( ABS( zw(nzb_local(j,i) ) - topo_height(j,i) ) == & |
---|
| 766 | ABS( zw(nzb_local(j,i)+1) - topo_height(j,i) ) ) & |
---|
| 767 | nzb_local(j,i) = nzb_local(j,i) + 1 |
---|
[1] | 768 | ENDDO |
---|
| 769 | ENDDO |
---|
[818] | 770 | |
---|
| 771 | DEALLOCATE ( topo_height ) |
---|
[1942] | 772 | ! |
---|
| 773 | !-- Filter topography, i.e. fill holes resolved by only one grid point. |
---|
| 774 | !-- Such holes are suspected to lead to velocity blow-ups as continuity |
---|
| 775 | !-- equation on discrete grid cannot be fulfilled in such case. |
---|
| 776 | !-- For now, check only for holes and fill them to the lowest height level |
---|
| 777 | !-- of the directly adjoining grid points along x- and y- direction. |
---|
| 778 | !-- Before checking for holes, set lateral boundary conditions for |
---|
| 779 | !-- topography. After hole-filling, boundary conditions must be set again! |
---|
[1968] | 780 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 781 | |
---|
| 782 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 783 | IF ( nys == 0 ) nzb_local(-1,:) = nzb_local(0,:) |
---|
| 784 | IF ( nyn == ny ) nzb_local(ny+1,:) = nzb_local(ny,:) |
---|
[1942] | 785 | ENDIF |
---|
[1910] | 786 | |
---|
[1968] | 787 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 788 | IF ( nxl == 0 ) nzb_local(:,-1) = nzb_local(:,0) |
---|
| 789 | IF ( nxr == nx ) nzb_local(:,nx+1) = nzb_local(:,nx) |
---|
[1942] | 790 | ENDIF |
---|
| 791 | |
---|
[1968] | 792 | num_hole_l = 0 |
---|
| 793 | DO i = nxl, nxr |
---|
| 794 | DO j = nys, nyn |
---|
[1942] | 795 | |
---|
| 796 | num_wall = 0 |
---|
| 797 | |
---|
| 798 | IF ( nzb_local(j-1,i) > nzb_local(j,i) ) & |
---|
| 799 | num_wall = num_wall + 1 |
---|
| 800 | IF ( nzb_local(j+1,i) > nzb_local(j,i) ) & |
---|
| 801 | num_wall = num_wall + 1 |
---|
| 802 | IF ( nzb_local(j,i-1) > nzb_local(j,i) ) & |
---|
| 803 | num_wall = num_wall + 1 |
---|
| 804 | IF ( nzb_local(j,i+1) > nzb_local(j,i) ) & |
---|
| 805 | num_wall = num_wall + 1 |
---|
| 806 | |
---|
| 807 | IF ( num_wall == 4 ) THEN |
---|
| 808 | nzb_local(j,i) = MIN( nzb_local(j-1,i), nzb_local(j+1,i), & |
---|
| 809 | nzb_local(j,i-1), nzb_local(j,i+1) ) |
---|
[1968] | 810 | num_hole_l = num_hole_l + 1 |
---|
[1942] | 811 | ENDIF |
---|
| 812 | ENDDO |
---|
| 813 | ENDDO |
---|
[114] | 814 | ! |
---|
[1968] | 815 | !-- Count the total number of holes, required for informative message. |
---|
| 816 | #if defined( __parallel ) |
---|
| 817 | CALL MPI_ALLREDUCE( num_hole_l, num_hole, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 818 | comm2d, ierr ) |
---|
| 819 | #else |
---|
| 820 | num_hole = num_hole_l |
---|
| 821 | #endif |
---|
| 822 | ! |
---|
[1942] | 823 | !-- Create an informative message if any hole was removed. |
---|
[1968] | 824 | IF ( num_hole > 0 ) THEN |
---|
[1942] | 825 | WRITE( message_string, * ) num_hole, 'hole(s) resolved by only '//& |
---|
| 826 | 'one grid point were filled' |
---|
| 827 | CALL message( 'init_grid', 'PA0430', 0, 0, 0, 6, 0 ) |
---|
| 828 | ENDIF |
---|
| 829 | ! |
---|
[1968] | 830 | !-- Exchange ghost-points, as well as add cyclic or Neumann boundary |
---|
| 831 | !-- conditions. |
---|
| 832 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 833 | |
---|
| 834 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 835 | IF ( nys == 0 ) nzb_local(-1,:) = nzb_local(0,:) |
---|
| 836 | IF ( nyn == ny ) nzb_local(ny+1,:) = nzb_local(ny,:) |
---|
[1910] | 837 | ENDIF |
---|
[667] | 838 | |
---|
[1968] | 839 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 840 | IF ( nxl == 0 ) nzb_local(:,-1) = nzb_local(:,0) |
---|
| 841 | IF ( nxr == nx ) nzb_local(:,nx+1) = nzb_local(:,nx) |
---|
[1910] | 842 | ENDIF |
---|
| 843 | |
---|
[1] | 844 | CASE DEFAULT |
---|
| 845 | ! |
---|
| 846 | !-- The DEFAULT case is reached either if the parameter topography |
---|
[217] | 847 | !-- contains a wrong character string or if the user has defined a special |
---|
[1] | 848 | !-- case in the user interface. There, the subroutine user_init_grid |
---|
| 849 | !-- checks which of these two conditions applies. |
---|
[1968] | 850 | CALL user_init_grid( nzb_local ) |
---|
[1] | 851 | |
---|
| 852 | END SELECT |
---|
| 853 | ! |
---|
[861] | 854 | !-- Determine the maximum level of topography. Furthermore it is used for |
---|
| 855 | !-- steering the degradation of order of the applied advection scheme. |
---|
[978] | 856 | !-- In case of non-cyclic lateral boundaries, the order of the advection |
---|
[1968] | 857 | !-- scheme has to be reduced up to nzt (required at the lateral boundaries). |
---|
| 858 | #if defined( __parallel ) |
---|
| 859 | CALL MPI_ALLREDUCE( MAXVAL( nzb_local ) + 1, nzb_max, 1, MPI_INTEGER, & |
---|
| 860 | MPI_MAX, comm2d, ierr ) |
---|
| 861 | #else |
---|
[1677] | 862 | nzb_max = MAXVAL( nzb_local ) + 1 |
---|
[1968] | 863 | #endif |
---|
[1353] | 864 | IF ( inflow_l .OR. outflow_l .OR. inflow_r .OR. outflow_r .OR. & |
---|
[1762] | 865 | inflow_n .OR. outflow_n .OR. inflow_s .OR. outflow_s .OR. & |
---|
| 866 | nest_domain ) & |
---|
| 867 | THEN |
---|
| 868 | nzb_max = nzt |
---|
[978] | 869 | ENDIF |
---|
| 870 | |
---|
[861] | 871 | ! |
---|
[1] | 872 | !-- Consistency checks and index array initialization are only required for |
---|
[217] | 873 | !-- non-flat topography, also the initialization of topography height arrays |
---|
[49] | 874 | !-- zu_s_inner and zw_w_inner |
---|
[1] | 875 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
[1968] | 876 | #if defined( __parallel ) |
---|
| 877 | CALL MPI_ALLREDUCE( MAXVAL( nzb_local ), nzb_local_max, 1, MPI_INTEGER, & |
---|
| 878 | MPI_MAX, comm2d, ierr ) |
---|
| 879 | CALL MPI_ALLREDUCE( MAXVAL( nzb_local ), nzb_local_min, 1, MPI_INTEGER, & |
---|
| 880 | MPI_MIN, comm2d, ierr ) |
---|
| 881 | #else |
---|
| 882 | nzb_local_max = MAXVAL( nzb_local ) |
---|
| 883 | nzb_local_min = MINVAL( nzb_local ) |
---|
| 884 | #endif |
---|
[1] | 885 | ! |
---|
| 886 | !-- Consistency checks |
---|
[1968] | 887 | IF ( nzb_local_min < 0 .OR. nzb_local_max > nz + 1 ) THEN |
---|
[1353] | 888 | WRITE( message_string, * ) 'nzb_local values are outside the', & |
---|
| 889 | 'model domain', & |
---|
[1968] | 890 | '&MINVAL( nzb_local ) = ', nzb_local_min, & |
---|
| 891 | '&MAXVAL( nzb_local ) = ', nzb_local_max |
---|
[254] | 892 | CALL message( 'init_grid', 'PA0210', 1, 2, 0, 6, 0 ) |
---|
[1] | 893 | ENDIF |
---|
| 894 | |
---|
[217] | 895 | IF ( topography_grid_convention == 'cell_edge' ) THEN |
---|
[134] | 896 | ! |
---|
[217] | 897 | !-- The array nzb_local as defined using the 'cell_edge' convention |
---|
| 898 | !-- describes the actual total size of topography which is defined at the |
---|
| 899 | !-- cell edges where u=0 on the topography walls in x-direction and v=0 |
---|
| 900 | !-- on the topography walls in y-direction. However, PALM uses individual |
---|
| 901 | !-- arrays nzb_u|v|w|s_inner|outer that are based on nzb_s_inner. |
---|
| 902 | !-- Therefore, the extent of topography in nzb_local is now reduced by |
---|
| 903 | !-- 1dx at the E topography walls and by 1dy at the N topography walls |
---|
[1968] | 904 | !-- to form the basis for nzb_s_inner. |
---|
| 905 | !-- Note, the reverse memory access (i-j instead of j-i) is absolutely |
---|
| 906 | !-- required at this point. |
---|
| 907 | DO j = nys+1, nyn+1 |
---|
| 908 | DO i = nxl-1, nxr |
---|
[217] | 909 | nzb_local(j,i) = MIN( nzb_local(j,i), nzb_local(j,i+1) ) |
---|
| 910 | ENDDO |
---|
[134] | 911 | ENDDO |
---|
[1968] | 912 | ! |
---|
| 913 | !-- Exchange ghost points |
---|
| 914 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 915 | |
---|
| 916 | DO i = nxl, nxr+1 |
---|
| 917 | DO j = nys-1, nyn |
---|
[217] | 918 | nzb_local(j,i) = MIN( nzb_local(j,i), nzb_local(j+1,i) ) |
---|
| 919 | ENDDO |
---|
[134] | 920 | ENDDO |
---|
[1968] | 921 | ! |
---|
| 922 | !-- Exchange ghost points |
---|
| 923 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[217] | 924 | ENDIF |
---|
[1] | 925 | ! |
---|
| 926 | !-- Initialize index arrays nzb_s_inner and nzb_w_inner |
---|
[1968] | 927 | nzb_s_inner = nzb_local |
---|
| 928 | nzb_w_inner = nzb_local |
---|
[1] | 929 | |
---|
| 930 | ! |
---|
| 931 | !-- Initialize remaining index arrays: |
---|
| 932 | !-- first pre-initialize them with nzb_s_inner... |
---|
| 933 | nzb_u_inner = nzb_s_inner |
---|
| 934 | nzb_u_outer = nzb_s_inner |
---|
| 935 | nzb_v_inner = nzb_s_inner |
---|
| 936 | nzb_v_outer = nzb_s_inner |
---|
| 937 | nzb_w_outer = nzb_s_inner |
---|
| 938 | nzb_s_outer = nzb_s_inner |
---|
| 939 | |
---|
| 940 | ! |
---|
| 941 | !-- ...then extend pre-initialized arrays in their according directions |
---|
| 942 | !-- based on nzb_local using nzb_tmp as a temporary global index array |
---|
| 943 | |
---|
| 944 | ! |
---|
| 945 | !-- nzb_s_outer: |
---|
| 946 | !-- extend nzb_local east-/westwards first, then north-/southwards |
---|
[1968] | 947 | nzb_tmp = nzb_local |
---|
| 948 | DO j = nys, nyn |
---|
| 949 | DO i = nxl, nxr |
---|
[1353] | 950 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i), & |
---|
[1] | 951 | nzb_local(j,i+1) ) |
---|
| 952 | ENDDO |
---|
| 953 | ENDDO |
---|
[1968] | 954 | |
---|
| 955 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 956 | |
---|
[1] | 957 | DO i = nxl, nxr |
---|
| 958 | DO j = nys, nyn |
---|
[1353] | 959 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
[1] | 960 | nzb_tmp(j+1,i) ) |
---|
| 961 | ENDDO |
---|
| 962 | ! |
---|
| 963 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 964 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 965 | IF ( nys == 0 ) THEN |
---|
| 966 | j = -1 |
---|
| 967 | nzb_s_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 968 | ENDIF |
---|
[1743] | 969 | IF ( nyn == ny ) THEN |
---|
[1] | 970 | j = ny + 1 |
---|
| 971 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 972 | ENDIF |
---|
| 973 | ENDDO |
---|
| 974 | ! |
---|
| 975 | !-- nzb_w_outer: |
---|
| 976 | !-- identical to nzb_s_outer |
---|
| 977 | nzb_w_outer = nzb_s_outer |
---|
| 978 | |
---|
| 979 | ! |
---|
| 980 | !-- nzb_u_inner: |
---|
| 981 | !-- extend nzb_local rightwards only |
---|
[1968] | 982 | nzb_tmp = nzb_local |
---|
| 983 | DO j = nys, nyn |
---|
| 984 | DO i = nxl, nxr |
---|
[1] | 985 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i) ) |
---|
| 986 | ENDDO |
---|
| 987 | ENDDO |
---|
[1968] | 988 | |
---|
| 989 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 990 | |
---|
| 991 | nzb_u_inner = nzb_tmp |
---|
[1] | 992 | ! |
---|
| 993 | !-- nzb_u_outer: |
---|
| 994 | !-- extend current nzb_tmp (nzb_u_inner) north-/southwards |
---|
| 995 | DO i = nxl, nxr |
---|
| 996 | DO j = nys, nyn |
---|
[1353] | 997 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
[1] | 998 | nzb_tmp(j+1,i) ) |
---|
| 999 | ENDDO |
---|
| 1000 | ! |
---|
| 1001 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1002 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1003 | IF ( nys == 0 ) THEN |
---|
| 1004 | j = -1 |
---|
| 1005 | nzb_u_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 1006 | ENDIF |
---|
[1743] | 1007 | IF ( nyn == ny ) THEN |
---|
[1] | 1008 | j = ny + 1 |
---|
| 1009 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 1010 | ENDIF |
---|
| 1011 | ENDDO |
---|
| 1012 | |
---|
| 1013 | ! |
---|
| 1014 | !-- nzb_v_inner: |
---|
| 1015 | !-- extend nzb_local northwards only |
---|
[1968] | 1016 | nzb_tmp = nzb_local |
---|
| 1017 | DO i = nxl, nxr |
---|
| 1018 | DO j = nys, nyn |
---|
[1] | 1019 | nzb_tmp(j,i) = MAX( nzb_local(j-1,i), nzb_local(j,i) ) |
---|
| 1020 | ENDDO |
---|
| 1021 | ENDDO |
---|
[1968] | 1022 | |
---|
| 1023 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1024 | nzb_v_inner = nzb_tmp |
---|
[1] | 1025 | |
---|
| 1026 | ! |
---|
| 1027 | !-- nzb_v_outer: |
---|
| 1028 | !-- extend current nzb_tmp (nzb_v_inner) right-/leftwards |
---|
| 1029 | DO j = nys, nyn |
---|
| 1030 | DO i = nxl, nxr |
---|
[1353] | 1031 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i), & |
---|
[1] | 1032 | nzb_tmp(j,i+1) ) |
---|
| 1033 | ENDDO |
---|
| 1034 | ! |
---|
| 1035 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1036 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1037 | IF ( nxl == 0 ) THEN |
---|
| 1038 | i = -1 |
---|
| 1039 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i+1), nzb_tmp(j,i) ) |
---|
| 1040 | ENDIF |
---|
| 1041 | IF ( nxr == nx ) THEN |
---|
| 1042 | i = nx + 1 |
---|
| 1043 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i) ) |
---|
| 1044 | ENDIF |
---|
| 1045 | ENDDO |
---|
[1804] | 1046 | |
---|
[1] | 1047 | ! |
---|
| 1048 | !-- Exchange of lateral boundary values (parallel computers) and cyclic |
---|
| 1049 | !-- boundary conditions, if applicable. |
---|
| 1050 | !-- Since nzb_s_inner and nzb_w_inner are derived directly from nzb_local |
---|
| 1051 | !-- they do not require exchange and are not included here. |
---|
[1968] | 1052 | CALL exchange_horiz_2d_int( nzb_u_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1053 | CALL exchange_horiz_2d_int( nzb_u_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1054 | CALL exchange_horiz_2d_int( nzb_v_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1055 | CALL exchange_horiz_2d_int( nzb_v_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1056 | CALL exchange_horiz_2d_int( nzb_w_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1057 | CALL exchange_horiz_2d_int( nzb_s_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
[1] | 1058 | |
---|
[49] | 1059 | ! |
---|
| 1060 | !-- Allocate and set the arrays containing the topography height |
---|
[1968] | 1061 | ALLOCATE( zu_s_inner(0:nx+1,0:ny+1), zw_w_inner(0:nx+1,0:ny+1), & |
---|
| 1062 | zu_s_inner_l(0:nx+1,0:ny+1), zw_w_inner_l(0:nx+1,0:ny+1) ) |
---|
| 1063 | |
---|
| 1064 | zu_s_inner = 0.0_wp |
---|
| 1065 | zw_w_inner = 0.0_wp |
---|
| 1066 | zu_s_inner_l = 0.0_wp |
---|
| 1067 | zw_w_inner_l = 0.0_wp |
---|
| 1068 | |
---|
| 1069 | DO i = nxl, nxr |
---|
| 1070 | DO j = nys, nyn |
---|
| 1071 | zu_s_inner_l(i,j) = zu(nzb_local(j,i)) |
---|
| 1072 | zw_w_inner_l(i,j) = zw(nzb_local(j,i)) |
---|
| 1073 | ENDDO |
---|
| 1074 | ENDDO |
---|
| 1075 | |
---|
| 1076 | #if defined( __parallel ) |
---|
| 1077 | CALL MPI_REDUCE( zu_s_inner_l, zu_s_inner, (nx+2)*(ny+2), & |
---|
| 1078 | MPI_REAL, MPI_SUM, 0, comm2d, ierr ) |
---|
| 1079 | CALL MPI_REDUCE( zw_w_inner_l, zw_w_inner, (nx+2)*(ny+2), & |
---|
| 1080 | MPI_REAL, MPI_SUM, 0, comm2d, ierr ) |
---|
| 1081 | #else |
---|
| 1082 | zu_s_inner = zu_s_inner_l |
---|
| 1083 | zw_w_inner = zw_w_inner_l |
---|
| 1084 | #endif |
---|
[49] | 1085 | |
---|
[1968] | 1086 | DEALLOCATE( zu_s_inner_l, zw_w_inner_l ) |
---|
| 1087 | IF ( myid /= 0 ) DEALLOCATE( zu_s_inner, zw_w_inner ) |
---|
[1221] | 1088 | ! |
---|
[1968] | 1089 | !-- Set south and left ghost points, required for netcdf output |
---|
| 1090 | IF ( myid == 0 ) THEN |
---|
| 1091 | IF( bc_lr_cyc ) THEN |
---|
| 1092 | zu_s_inner(nx+1,:) = zu_s_inner(0,:) |
---|
| 1093 | zw_w_inner(nx+1,:) = zw_w_inner(0,:) |
---|
| 1094 | ELSE |
---|
| 1095 | zu_s_inner(nx+1,:) = zu_s_inner(nx,:) |
---|
| 1096 | zw_w_inner(nx+1,:) = zw_w_inner(nx,:) |
---|
| 1097 | ENDIF |
---|
| 1098 | IF( bc_ns_cyc ) THEN |
---|
| 1099 | zu_s_inner(:,ny+1) = zu_s_inner(:,0) |
---|
| 1100 | zw_w_inner(:,ny+1) = zw_w_inner(:,0) |
---|
| 1101 | ELSE |
---|
| 1102 | zu_s_inner(:,ny+1) = zu_s_inner(:,ny) |
---|
| 1103 | zw_w_inner(:,ny+1) = zw_w_inner(:,ny) |
---|
| 1104 | ENDIF |
---|
| 1105 | ENDIF |
---|
| 1106 | ! |
---|
[1221] | 1107 | !-- Set flag arrays to be used for masking of grid points |
---|
| 1108 | DO i = nxlg, nxrg |
---|
| 1109 | DO j = nysg, nyng |
---|
| 1110 | DO k = nzb, nzt+1 |
---|
[1353] | 1111 | IF ( k <= nzb_s_inner(j,i) ) rflags_s_inner(k,j,i) = 0.0_wp |
---|
| 1112 | IF ( k <= nzb_s_inner(j,i) ) rflags_invers(j,i,k) = 0.0_wp |
---|
[1221] | 1113 | ENDDO |
---|
| 1114 | ENDDO |
---|
| 1115 | ENDDO |
---|
[1804] | 1116 | |
---|
[1] | 1117 | ENDIF |
---|
[1968] | 1118 | ! |
---|
| 1119 | !-- Deallocate temporary array, as it might be reused for different |
---|
| 1120 | !-- grid-levels further below. |
---|
| 1121 | DEALLOCATE( nzb_tmp ) |
---|
[1] | 1122 | |
---|
| 1123 | ! |
---|
| 1124 | !-- Set the individual index arrays which define the k index from which on |
---|
| 1125 | !-- the usual finite difference form (which does not use surface fluxes) is |
---|
| 1126 | !-- applied |
---|
[1691] | 1127 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 1128 | nzb_diff_u = nzb_u_inner + 2 |
---|
| 1129 | nzb_diff_v = nzb_v_inner + 2 |
---|
| 1130 | nzb_diff_s_inner = nzb_s_inner + 2 |
---|
| 1131 | nzb_diff_s_outer = nzb_s_outer + 2 |
---|
| 1132 | ELSE |
---|
| 1133 | nzb_diff_u = nzb_u_inner + 1 |
---|
| 1134 | nzb_diff_v = nzb_v_inner + 1 |
---|
| 1135 | nzb_diff_s_inner = nzb_s_inner + 1 |
---|
| 1136 | nzb_diff_s_outer = nzb_s_outer + 1 |
---|
| 1137 | ENDIF |
---|
| 1138 | |
---|
| 1139 | ! |
---|
| 1140 | !-- Calculation of wall switches and factors required by diffusion_u/v.f90 and |
---|
| 1141 | !-- for limitation of near-wall mixing length l_wall further below |
---|
| 1142 | corner_nl = 0 |
---|
| 1143 | corner_nr = 0 |
---|
| 1144 | corner_sl = 0 |
---|
| 1145 | corner_sr = 0 |
---|
| 1146 | wall_l = 0 |
---|
| 1147 | wall_n = 0 |
---|
| 1148 | wall_r = 0 |
---|
| 1149 | wall_s = 0 |
---|
| 1150 | |
---|
| 1151 | DO i = nxl, nxr |
---|
| 1152 | DO j = nys, nyn |
---|
| 1153 | ! |
---|
| 1154 | !-- u-component |
---|
| 1155 | IF ( nzb_u_outer(j,i) > nzb_u_outer(j+1,i) ) THEN |
---|
[1353] | 1156 | wall_u(j,i) = 1.0_wp ! north wall (location of adjacent fluid) |
---|
| 1157 | fym(j,i) = 0.0_wp |
---|
| 1158 | fyp(j,i) = 1.0_wp |
---|
[1] | 1159 | ELSEIF ( nzb_u_outer(j,i) > nzb_u_outer(j-1,i) ) THEN |
---|
[1353] | 1160 | wall_u(j,i) = 1.0_wp ! south wall (location of adjacent fluid) |
---|
| 1161 | fym(j,i) = 1.0_wp |
---|
| 1162 | fyp(j,i) = 0.0_wp |
---|
[1] | 1163 | ENDIF |
---|
| 1164 | ! |
---|
| 1165 | !-- v-component |
---|
| 1166 | IF ( nzb_v_outer(j,i) > nzb_v_outer(j,i+1) ) THEN |
---|
[1353] | 1167 | wall_v(j,i) = 1.0_wp ! rigth wall (location of adjacent fluid) |
---|
| 1168 | fxm(j,i) = 0.0_wp |
---|
| 1169 | fxp(j,i) = 1.0_wp |
---|
[1] | 1170 | ELSEIF ( nzb_v_outer(j,i) > nzb_v_outer(j,i-1) ) THEN |
---|
[1353] | 1171 | wall_v(j,i) = 1.0_wp ! left wall (location of adjacent fluid) |
---|
| 1172 | fxm(j,i) = 1.0_wp |
---|
| 1173 | fxp(j,i) = 0.0_wp |
---|
[1] | 1174 | ENDIF |
---|
| 1175 | ! |
---|
| 1176 | !-- w-component, also used for scalars, separate arrays for shear |
---|
| 1177 | !-- production of tke |
---|
| 1178 | IF ( nzb_w_outer(j,i) > nzb_w_outer(j+1,i) ) THEN |
---|
[1353] | 1179 | wall_e_y(j,i) = 1.0_wp ! north wall (location of adjacent fluid) |
---|
| 1180 | wall_w_y(j,i) = 1.0_wp |
---|
| 1181 | fwym(j,i) = 0.0_wp |
---|
| 1182 | fwyp(j,i) = 1.0_wp |
---|
[1] | 1183 | ELSEIF ( nzb_w_outer(j,i) > nzb_w_outer(j-1,i) ) THEN |
---|
[1353] | 1184 | wall_e_y(j,i) = -1.0_wp ! south wall (location of adjacent fluid) |
---|
| 1185 | wall_w_y(j,i) = 1.0_wp |
---|
| 1186 | fwym(j,i) = 1.0_wp |
---|
| 1187 | fwyp(j,i) = 0.0_wp |
---|
[1] | 1188 | ENDIF |
---|
| 1189 | IF ( nzb_w_outer(j,i) > nzb_w_outer(j,i+1) ) THEN |
---|
[1353] | 1190 | wall_e_x(j,i) = 1.0_wp ! right wall (location of adjacent fluid) |
---|
| 1191 | wall_w_x(j,i) = 1.0_wp |
---|
| 1192 | fwxm(j,i) = 0.0_wp |
---|
| 1193 | fwxp(j,i) = 1.0_wp |
---|
[1] | 1194 | ELSEIF ( nzb_w_outer(j,i) > nzb_w_outer(j,i-1) ) THEN |
---|
[1353] | 1195 | wall_e_x(j,i) = -1.0_wp ! left wall (location of adjacent fluid) |
---|
| 1196 | wall_w_x(j,i) = 1.0_wp |
---|
| 1197 | fwxm(j,i) = 1.0_wp |
---|
| 1198 | fwxp(j,i) = 0.0_wp |
---|
[1] | 1199 | ENDIF |
---|
| 1200 | ! |
---|
| 1201 | !-- Wall and corner locations inside buildings for limitation of |
---|
| 1202 | !-- near-wall mixing length l_wall |
---|
| 1203 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j+1,i) ) THEN |
---|
| 1204 | |
---|
| 1205 | wall_n(j,i) = nzb_s_inner(j+1,i) + 1 ! North wall |
---|
| 1206 | |
---|
| 1207 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i-1) ) THEN |
---|
| 1208 | corner_nl(j,i) = MAX( nzb_s_inner(j+1,i), & ! Northleft corner |
---|
| 1209 | nzb_s_inner(j,i-1) ) + 1 |
---|
| 1210 | ENDIF |
---|
| 1211 | |
---|
| 1212 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i+1) ) THEN |
---|
| 1213 | corner_nr(j,i) = MAX( nzb_s_inner(j+1,i), & ! Northright corner |
---|
| 1214 | nzb_s_inner(j,i+1) ) + 1 |
---|
| 1215 | ENDIF |
---|
| 1216 | |
---|
| 1217 | ENDIF |
---|
| 1218 | |
---|
| 1219 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j-1,i) ) THEN |
---|
| 1220 | |
---|
| 1221 | wall_s(j,i) = nzb_s_inner(j-1,i) + 1 ! South wall |
---|
| 1222 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i-1) ) THEN |
---|
| 1223 | corner_sl(j,i) = MAX( nzb_s_inner(j-1,i), & ! Southleft corner |
---|
| 1224 | nzb_s_inner(j,i-1) ) + 1 |
---|
| 1225 | ENDIF |
---|
| 1226 | |
---|
| 1227 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i+1) ) THEN |
---|
| 1228 | corner_sr(j,i) = MAX( nzb_s_inner(j-1,i), & ! Southright corner |
---|
| 1229 | nzb_s_inner(j,i+1) ) + 1 |
---|
| 1230 | ENDIF |
---|
| 1231 | |
---|
| 1232 | ENDIF |
---|
| 1233 | |
---|
| 1234 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i-1) ) THEN |
---|
| 1235 | wall_l(j,i) = nzb_s_inner(j,i-1) + 1 ! Left wall |
---|
| 1236 | ENDIF |
---|
| 1237 | |
---|
| 1238 | IF ( nzb_s_inner(j,i) > nzb_s_inner(j,i+1) ) THEN |
---|
| 1239 | wall_r(j,i) = nzb_s_inner(j,i+1) + 1 ! Right wall |
---|
| 1240 | ENDIF |
---|
| 1241 | |
---|
| 1242 | ENDDO |
---|
| 1243 | ENDDO |
---|
| 1244 | ! |
---|
[1931] | 1245 | !-- Calculate wall flag arrays for the multigrid method. |
---|
| 1246 | !-- Please note, wall flags are only applied in the not cache-optimized |
---|
| 1247 | !-- version. |
---|
| 1248 | IF ( psolver == 'multigrid_noopt' ) THEN |
---|
[1968] | 1249 | |
---|
[114] | 1250 | ! |
---|
[1968] | 1251 | !-- Gridpoint increment of the current level. |
---|
[114] | 1252 | inc = 1 |
---|
| 1253 | DO l = maximum_grid_level, 1 , -1 |
---|
[1968] | 1254 | ! |
---|
| 1255 | !-- Set grid_level as it is required for exchange_horiz_2d_int |
---|
| 1256 | grid_level = l |
---|
[114] | 1257 | |
---|
| 1258 | nxl_l = nxl_mg(l) |
---|
| 1259 | nxr_l = nxr_mg(l) |
---|
| 1260 | nys_l = nys_mg(l) |
---|
| 1261 | nyn_l = nyn_mg(l) |
---|
| 1262 | nzt_l = nzt_mg(l) |
---|
| 1263 | ! |
---|
| 1264 | !-- Assign the flag level to be calculated |
---|
| 1265 | SELECT CASE ( l ) |
---|
| 1266 | CASE ( 1 ) |
---|
| 1267 | flags => wall_flags_1 |
---|
| 1268 | CASE ( 2 ) |
---|
| 1269 | flags => wall_flags_2 |
---|
| 1270 | CASE ( 3 ) |
---|
| 1271 | flags => wall_flags_3 |
---|
| 1272 | CASE ( 4 ) |
---|
| 1273 | flags => wall_flags_4 |
---|
| 1274 | CASE ( 5 ) |
---|
| 1275 | flags => wall_flags_5 |
---|
| 1276 | CASE ( 6 ) |
---|
| 1277 | flags => wall_flags_6 |
---|
| 1278 | CASE ( 7 ) |
---|
| 1279 | flags => wall_flags_7 |
---|
| 1280 | CASE ( 8 ) |
---|
| 1281 | flags => wall_flags_8 |
---|
| 1282 | CASE ( 9 ) |
---|
| 1283 | flags => wall_flags_9 |
---|
| 1284 | CASE ( 10 ) |
---|
| 1285 | flags => wall_flags_10 |
---|
| 1286 | END SELECT |
---|
| 1287 | |
---|
| 1288 | ! |
---|
| 1289 | !-- Depending on the grid level, set the respective bits in case of |
---|
| 1290 | !-- neighbouring walls |
---|
| 1291 | !-- Bit 0: wall to the bottom |
---|
| 1292 | !-- Bit 1: wall to the top (not realized in remaining PALM code so far) |
---|
| 1293 | !-- Bit 2: wall to the south |
---|
| 1294 | !-- Bit 3: wall to the north |
---|
| 1295 | !-- Bit 4: wall to the left |
---|
| 1296 | !-- Bit 5: wall to the right |
---|
[116] | 1297 | !-- Bit 6: inside building |
---|
[114] | 1298 | |
---|
| 1299 | flags = 0 |
---|
| 1300 | |
---|
[927] | 1301 | ! |
---|
| 1302 | !-- In case of masking method, flags are not set and multigrid method |
---|
| 1303 | !-- works like FFT-solver |
---|
[1931] | 1304 | IF ( .NOT. masking_method ) THEN |
---|
[927] | 1305 | |
---|
[1968] | 1306 | ! |
---|
| 1307 | !-- Allocate temporary array for topography heights on coarser grid |
---|
| 1308 | !-- level. Please note, 2 ghoist points are required, in order to |
---|
| 1309 | !-- calculate flags() on the interior ghost point. |
---|
| 1310 | ALLOCATE( nzb_tmp(nys_l-2:nyn_l+2,nxl_l-2:nxr_l+2) ) |
---|
| 1311 | nzb_tmp = 0 |
---|
| 1312 | |
---|
| 1313 | DO i = nxl_l, nxr_l |
---|
| 1314 | DO j = nys_l, nyn_l |
---|
| 1315 | nzb_tmp(j,i) = nzb_local(j*inc,i*inc) |
---|
| 1316 | ENDDO |
---|
| 1317 | ENDDO |
---|
| 1318 | ! |
---|
| 1319 | !-- Exchange ghost points on respective multigrid level. 2 ghost points |
---|
| 1320 | !-- are required, in order to calculate flags on |
---|
| 1321 | !-- nys_l-1 / nyn_l+1 / nxl_l-1 / nxr_l+1. The alternative would be to |
---|
| 1322 | !-- exchange 3D-INTEGER array flags on the respective multigrid level. |
---|
| 1323 | CALL exchange_horiz_2d_int( nzb_tmp, nys_l, nyn_l, nxl_l, nxr_l, 2 ) |
---|
| 1324 | ! |
---|
| 1325 | !-- Set non-cyclic boundary conditions on respective multigrid level |
---|
| 1326 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1327 | IF ( nys == 0 ) THEN |
---|
| 1328 | nzb_tmp(-2,:) = nzb_tmp(0,:) |
---|
| 1329 | nzb_tmp(-1,:) = nzb_tmp(0,:) |
---|
| 1330 | ENDIF |
---|
| 1331 | IF ( nyn == ny ) THEN |
---|
| 1332 | nzb_tmp(ny+2,:) = nzb_tmp(ny,:) |
---|
| 1333 | nzb_tmp(ny+1,:) = nzb_tmp(ny,:) |
---|
| 1334 | ENDIF |
---|
| 1335 | ENDIF |
---|
| 1336 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1337 | IF ( nxl == 0 ) THEN |
---|
| 1338 | nzb_tmp(:,-2) = nzb_tmp(:,0) |
---|
| 1339 | nzb_tmp(:,-1) = nzb_tmp(:,0) |
---|
| 1340 | ENDIF |
---|
| 1341 | IF ( nxr == nx ) THEN |
---|
| 1342 | nzb_tmp(:,nx+1) = nzb_tmp(:,nx) |
---|
| 1343 | nzb_tmp(:,nx+2) = nzb_tmp(:,nx) |
---|
| 1344 | ENDIF |
---|
| 1345 | ENDIF |
---|
| 1346 | |
---|
[927] | 1347 | DO i = nxl_l-1, nxr_l+1 |
---|
| 1348 | DO j = nys_l-1, nyn_l+1 |
---|
[1968] | 1349 | DO k = nzb, nzt_l+1 |
---|
[114] | 1350 | ! |
---|
[927] | 1351 | !-- Inside/outside building (inside building does not need |
---|
| 1352 | !-- further tests for walls) |
---|
[1968] | 1353 | IF ( k*inc <= nzb_tmp(j,i) ) THEN |
---|
[114] | 1354 | |
---|
[927] | 1355 | flags(k,j,i) = IBSET( flags(k,j,i), 6 ) |
---|
[114] | 1356 | |
---|
[927] | 1357 | ELSE |
---|
[114] | 1358 | ! |
---|
[927] | 1359 | !-- Bottom wall |
---|
[1968] | 1360 | IF ( (k-1)*inc <= nzb_tmp(j,i) ) THEN |
---|
[927] | 1361 | flags(k,j,i) = IBSET( flags(k,j,i), 0 ) |
---|
| 1362 | ENDIF |
---|
[114] | 1363 | ! |
---|
[927] | 1364 | !-- South wall |
---|
[1968] | 1365 | IF ( k*inc <= nzb_tmp(j-1,i) ) THEN |
---|
[927] | 1366 | flags(k,j,i) = IBSET( flags(k,j,i), 2 ) |
---|
| 1367 | ENDIF |
---|
[114] | 1368 | ! |
---|
[927] | 1369 | !-- North wall |
---|
[1968] | 1370 | IF ( k*inc <= nzb_tmp(j+1,i) ) THEN |
---|
[927] | 1371 | flags(k,j,i) = IBSET( flags(k,j,i), 3 ) |
---|
| 1372 | ENDIF |
---|
[114] | 1373 | ! |
---|
[927] | 1374 | !-- Left wall |
---|
[1968] | 1375 | IF ( k*inc <= nzb_tmp(j,i-1) ) THEN |
---|
[927] | 1376 | flags(k,j,i) = IBSET( flags(k,j,i), 4 ) |
---|
| 1377 | ENDIF |
---|
[114] | 1378 | ! |
---|
[927] | 1379 | !-- Right wall |
---|
[1968] | 1380 | IF ( k*inc <= nzb_tmp(j,i+1) ) THEN |
---|
[927] | 1381 | flags(k,j,i) = IBSET( flags(k,j,i), 5 ) |
---|
| 1382 | ENDIF |
---|
| 1383 | |
---|
[114] | 1384 | ENDIF |
---|
| 1385 | |
---|
[927] | 1386 | ENDDO |
---|
[114] | 1387 | ENDDO |
---|
| 1388 | ENDDO |
---|
| 1389 | |
---|
[1968] | 1390 | DEALLOCATE( nzb_tmp ) |
---|
| 1391 | |
---|
[927] | 1392 | ENDIF |
---|
| 1393 | |
---|
[114] | 1394 | inc = inc * 2 |
---|
| 1395 | |
---|
| 1396 | ENDDO |
---|
[1968] | 1397 | ! |
---|
| 1398 | !-- Reset grid_level to "normal" grid |
---|
| 1399 | grid_level = 0 |
---|
| 1400 | |
---|
[114] | 1401 | ENDIF |
---|
[861] | 1402 | ! |
---|
[1942] | 1403 | !-- Allocate flags needed for masking walls. Even though these flags are only |
---|
| 1404 | !-- required in the ws-scheme, the arrays need to be allocated as they are |
---|
| 1405 | !-- used in OpenACC directives. |
---|
[1677] | 1406 | ALLOCATE( wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg), & |
---|
| 1407 | wall_flags_00(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
[1221] | 1408 | wall_flags_0 = 0 |
---|
| 1409 | wall_flags_00 = 0 |
---|
[114] | 1410 | ! |
---|
[1942] | 1411 | !-- Init flags for ws-scheme to degrade order near walls |
---|
| 1412 | IF ( momentum_advec == 'ws-scheme' .OR. scalar_advec == 'ws-scheme' .OR.& |
---|
| 1413 | scalar_advec == 'ws-scheme-mono' ) THEN |
---|
| 1414 | CALL ws_init_flags |
---|
[861] | 1415 | ENDIF |
---|
| 1416 | |
---|
| 1417 | ! |
---|
[1] | 1418 | !-- In case of topography: limit near-wall mixing length l_wall further: |
---|
| 1419 | !-- Go through all points of the subdomain one by one and look for the closest |
---|
| 1420 | !-- surface |
---|
| 1421 | IF ( TRIM(topography) /= 'flat' ) THEN |
---|
| 1422 | DO i = nxl, nxr |
---|
| 1423 | DO j = nys, nyn |
---|
| 1424 | |
---|
| 1425 | nzb_si = nzb_s_inner(j,i) |
---|
| 1426 | vi = vertical_influence(nzb_si) |
---|
| 1427 | |
---|
| 1428 | IF ( wall_n(j,i) > 0 ) THEN |
---|
| 1429 | ! |
---|
| 1430 | !-- North wall (y distance) |
---|
| 1431 | DO k = wall_n(j,i), nzb_si |
---|
[1353] | 1432 | l_wall(k,j+1,i) = MIN( l_wall(k,j+1,i), 0.5_wp * dy ) |
---|
[1] | 1433 | ENDDO |
---|
| 1434 | ! |
---|
| 1435 | !-- Above North wall (yz distance) |
---|
| 1436 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1437 | l_wall(k,j+1,i) = MIN( l_wall(k,j+1,i), & |
---|
| 1438 | SQRT( 0.25_wp * dy**2 + & |
---|
[1] | 1439 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
| 1440 | ENDDO |
---|
| 1441 | ! |
---|
| 1442 | !-- Northleft corner (xy distance) |
---|
| 1443 | IF ( corner_nl(j,i) > 0 ) THEN |
---|
| 1444 | DO k = corner_nl(j,i), nzb_si |
---|
| 1445 | l_wall(k,j+1,i-1) = MIN( l_wall(k,j+1,i-1), & |
---|
[1353] | 1446 | 0.5_wp * SQRT( dx**2 + dy**2 ) ) |
---|
[1] | 1447 | ENDDO |
---|
| 1448 | ! |
---|
| 1449 | !-- Above Northleft corner (xyz distance) |
---|
| 1450 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1451 | l_wall(k,j+1,i-1) = MIN( l_wall(k,j+1,i-1), & |
---|
| 1452 | SQRT( 0.25_wp * (dx**2 + dy**2) + & |
---|
| 1453 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
[1] | 1454 | ENDDO |
---|
| 1455 | ENDIF |
---|
| 1456 | ! |
---|
| 1457 | !-- Northright corner (xy distance) |
---|
| 1458 | IF ( corner_nr(j,i) > 0 ) THEN |
---|
| 1459 | DO k = corner_nr(j,i), nzb_si |
---|
[1353] | 1460 | l_wall(k,j+1,i+1) = MIN( l_wall(k,j+1,i+1), & |
---|
| 1461 | 0.5_wp * SQRT( dx**2 + dy**2 ) ) |
---|
[1] | 1462 | ENDDO |
---|
| 1463 | ! |
---|
| 1464 | !-- Above northright corner (xyz distance) |
---|
| 1465 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1466 | l_wall(k,j+1,i+1) = MIN( l_wall(k,j+1,i+1), & |
---|
| 1467 | SQRT( 0.25_wp * (dx**2 + dy**2) + & |
---|
| 1468 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
[1] | 1469 | ENDDO |
---|
| 1470 | ENDIF |
---|
| 1471 | ENDIF |
---|
| 1472 | |
---|
| 1473 | IF ( wall_s(j,i) > 0 ) THEN |
---|
| 1474 | ! |
---|
| 1475 | !-- South wall (y distance) |
---|
| 1476 | DO k = wall_s(j,i), nzb_si |
---|
[1353] | 1477 | l_wall(k,j-1,i) = MIN( l_wall(k,j-1,i), 0.5_wp * dy ) |
---|
[1] | 1478 | ENDDO |
---|
| 1479 | ! |
---|
| 1480 | !-- Above south wall (yz distance) |
---|
[1353] | 1481 | DO k = nzb_si + 1, nzb_si + vi |
---|
| 1482 | l_wall(k,j-1,i) = MIN( l_wall(k,j-1,i), & |
---|
| 1483 | SQRT( 0.25_wp * dy**2 + & |
---|
[1] | 1484 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
| 1485 | ENDDO |
---|
| 1486 | ! |
---|
| 1487 | !-- Southleft corner (xy distance) |
---|
| 1488 | IF ( corner_sl(j,i) > 0 ) THEN |
---|
| 1489 | DO k = corner_sl(j,i), nzb_si |
---|
[1353] | 1490 | l_wall(k,j-1,i-1) = MIN( l_wall(k,j-1,i-1), & |
---|
| 1491 | 0.5_wp * SQRT( dx**2 + dy**2 ) ) |
---|
[1] | 1492 | ENDDO |
---|
| 1493 | ! |
---|
| 1494 | !-- Above southleft corner (xyz distance) |
---|
| 1495 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1496 | l_wall(k,j-1,i-1) = MIN( l_wall(k,j-1,i-1), & |
---|
| 1497 | SQRT( 0.25_wp * (dx**2 + dy**2) + & |
---|
| 1498 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
[1] | 1499 | ENDDO |
---|
| 1500 | ENDIF |
---|
| 1501 | ! |
---|
| 1502 | !-- Southright corner (xy distance) |
---|
| 1503 | IF ( corner_sr(j,i) > 0 ) THEN |
---|
| 1504 | DO k = corner_sr(j,i), nzb_si |
---|
[1353] | 1505 | l_wall(k,j-1,i+1) = MIN( l_wall(k,j-1,i+1), & |
---|
| 1506 | 0.5_wp * SQRT( dx**2 + dy**2 ) ) |
---|
[1] | 1507 | ENDDO |
---|
| 1508 | ! |
---|
| 1509 | !-- Above southright corner (xyz distance) |
---|
| 1510 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1511 | l_wall(k,j-1,i+1) = MIN( l_wall(k,j-1,i+1), & |
---|
| 1512 | SQRT( 0.25_wp * (dx**2 + dy**2) + & |
---|
| 1513 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
[1] | 1514 | ENDDO |
---|
| 1515 | ENDIF |
---|
| 1516 | |
---|
| 1517 | ENDIF |
---|
| 1518 | |
---|
| 1519 | IF ( wall_l(j,i) > 0 ) THEN |
---|
| 1520 | ! |
---|
| 1521 | !-- Left wall (x distance) |
---|
| 1522 | DO k = wall_l(j,i), nzb_si |
---|
[1353] | 1523 | l_wall(k,j,i-1) = MIN( l_wall(k,j,i-1), 0.5_wp * dx ) |
---|
[1] | 1524 | ENDDO |
---|
| 1525 | ! |
---|
| 1526 | !-- Above left wall (xz distance) |
---|
| 1527 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1528 | l_wall(k,j,i-1) = MIN( l_wall(k,j,i-1), & |
---|
| 1529 | SQRT( 0.25_wp * dx**2 + & |
---|
| 1530 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
[1] | 1531 | ENDDO |
---|
| 1532 | ENDIF |
---|
| 1533 | |
---|
| 1534 | IF ( wall_r(j,i) > 0 ) THEN |
---|
| 1535 | ! |
---|
| 1536 | !-- Right wall (x distance) |
---|
| 1537 | DO k = wall_r(j,i), nzb_si |
---|
[1353] | 1538 | l_wall(k,j,i+1) = MIN( l_wall(k,j,i+1), 0.5_wp * dx ) |
---|
[1] | 1539 | ENDDO |
---|
| 1540 | ! |
---|
| 1541 | !-- Above right wall (xz distance) |
---|
| 1542 | DO k = nzb_si + 1, nzb_si + vi |
---|
[1353] | 1543 | l_wall(k,j,i+1) = MIN( l_wall(k,j,i+1), & |
---|
| 1544 | SQRT( 0.25_wp * dx**2 + & |
---|
[1] | 1545 | ( zu(k) - zw(nzb_si) )**2 ) ) |
---|
| 1546 | ENDDO |
---|
| 1547 | |
---|
| 1548 | ENDIF |
---|
| 1549 | |
---|
| 1550 | ENDDO |
---|
| 1551 | ENDDO |
---|
| 1552 | |
---|
| 1553 | ENDIF |
---|
| 1554 | |
---|
| 1555 | ! |
---|
| 1556 | !-- Multiplication with wall_adjustment_factor |
---|
| 1557 | l_wall = wall_adjustment_factor * l_wall |
---|
| 1558 | |
---|
| 1559 | ! |
---|
[709] | 1560 | !-- Set lateral boundary conditions for l_wall |
---|
[667] | 1561 | CALL exchange_horiz( l_wall, nbgp ) |
---|
| 1562 | |
---|
[1] | 1563 | DEALLOCATE( corner_nl, corner_nr, corner_sl, corner_sr, nzb_local, & |
---|
[1968] | 1564 | vertical_influence, wall_l, wall_n, wall_r, wall_s ) |
---|
[1] | 1565 | |
---|
| 1566 | |
---|
| 1567 | END SUBROUTINE init_grid |
---|