[1682] | 1 | !> @file init_grid.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[2696] | 3 | ! This file is part of the PALM model system. |
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[1036] | 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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[2718] | 17 | ! Copyright 1997-2018 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[254] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[2233] | 22 | ! |
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[2701] | 23 | ! |
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[2233] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: init_grid.f90 2893 2018-03-14 16:20:52Z hellstea $ |
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[2893] | 27 | ! Revise informative message concerning filtered topography (1 grid-point |
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| 28 | ! holes). |
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| 29 | ! |
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| 30 | ! 2892 2018-03-14 15:06:29Z suehring |
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[2892] | 31 | ! Bugfix, uninitialized array in case of single_building. |
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| 32 | ! |
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| 33 | ! 2867 2018-03-09 09:40:23Z suehring |
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[2867] | 34 | ! Revise mapping of 3D buildings onto onto orography. |
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| 35 | ! |
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| 36 | ! 2823 2018-02-20 15:31:45Z Giersch |
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[2823] | 37 | ! Set boundary conditions for 3D topography in case of non-cyclic boundary |
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| 38 | ! conditions |
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| 39 | ! |
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| 40 | ! 2796 2018-02-08 12:25:39Z suehring |
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[2796] | 41 | ! Bugfix in 3D building initialization |
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| 42 | ! |
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| 43 | ! 2747 2018-01-15 12:44:17Z suehring |
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[2747] | 44 | ! Bugfix, topography height is rounded to the nearest discrete grid level |
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| 45 | ! |
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| 46 | ! 2718 2018-01-02 08:49:38Z maronga |
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[2716] | 47 | ! Corrected "Former revisions" section |
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[2701] | 48 | ! |
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[2716] | 49 | ! 2701 2017-12-15 15:40:50Z suehring |
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| 50 | ! Changes from last commit documented |
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| 51 | ! |
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[2701] | 52 | ! 2698 2017-12-14 18:46:24Z suehring |
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[2716] | 53 | ! Bugfix in get_topography_top_index |
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| 54 | ! |
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| 55 | ! 2696 2017-12-14 17:12:51Z kanani |
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| 56 | ! Change in file header (GPL part) |
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[2696] | 57 | ! Revised topography input |
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| 58 | ! Set nzb_max not for the entire nest domain, only for boundary PEs |
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| 59 | ! Re-organize routine, split-up into several subroutines |
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| 60 | ! Modularize poismg_noopt |
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| 61 | ! Remove setting bit 26, 27, 28 in wall_flags_0, indicating former '_outer' |
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| 62 | ! arrays (not required any more). |
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| 63 | ! Bugfix in generic tunnel setup (MS) |
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| 64 | ! |
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| 65 | ! 2550 2017-10-16 17:12:01Z boeske |
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[2550] | 66 | ! Set lateral boundary conditions for topography on all three ghost layers |
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| 67 | ! |
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| 68 | ! 2478 2017-09-18 13:37:24Z suehring |
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[2478] | 69 | ! Bugfix, correct flag for use_top |
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| 70 | ! |
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| 71 | ! 2365 2017-08-21 14:59:59Z kanani |
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[2365] | 72 | ! Vertical nesting implemented (SadiqHuq) |
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| 73 | ! |
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| 74 | ! 2319 2017-07-20 17:33:17Z suehring |
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[2319] | 75 | ! Remove print statements |
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| 76 | ! |
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| 77 | ! 2318 2017-07-20 17:27:44Z suehring |
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[2318] | 78 | ! Get topography top index via Function call |
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| 79 | ! |
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| 80 | ! 2317 2017-07-20 17:27:19Z suehring |
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[2302] | 81 | ! Bugfixes in reading 3D topography from file |
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| 82 | ! |
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| 83 | ! 2274 2017-06-09 13:27:48Z Giersch |
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[2274] | 84 | ! Changed error messages |
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| 85 | ! |
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| 86 | ! 2233 2017-05-30 18:08:54Z suehring |
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[2233] | 87 | ! |
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| 88 | ! 2232 2017-05-30 17:47:52Z suehring |
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[2232] | 89 | ! - Adjustments according to new topography representation |
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| 90 | ! - Bugfix: Move determination of nzb_max behind topography modification in |
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| 91 | ! cell-edge case |
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| 92 | ! - Get rid off global arrays required for topography output |
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| 93 | ! - Enable topography input via netcdf |
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| 94 | ! - Generic tunnel set-up added |
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[1969] | 95 | ! |
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[2201] | 96 | ! 2200 2017-04-11 11:37:51Z suehring |
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| 97 | ! monotonic_adjustment removed |
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| 98 | ! |
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[2170] | 99 | ! 2169 2017-03-06 18:16:35Z suehring |
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| 100 | ! Bugfix, move setting for topography grid convention to init_grid, else, if no |
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| 101 | ! value is set, the simulation may abort in case of restarts |
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| 102 | ! |
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[2129] | 103 | ! 2128 2017-01-23 15:00:03Z suehring |
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| 104 | ! Bugfix in setting topography from file in case of ocean simulations |
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| 105 | ! |
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[2089] | 106 | ! 2088 2016-12-19 16:30:25Z suehring |
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| 107 | ! Bugfix in generic topography in case of ocean simulations |
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| 108 | ! |
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[2038] | 109 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 110 | ! Anelastic approximation implemented |
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| 111 | ! |
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[2022] | 112 | ! 2021 2016-10-07 14:08:57Z suehring |
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| 113 | ! Bugfix: setting Neumann boundary conditions for topography required for |
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| 114 | ! topography flags in multigrid_noopt solver |
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| 115 | ! |
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[2001] | 116 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 117 | ! Forced header and separation lines into 80 columns |
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| 118 | ! |
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[1995] | 119 | ! 1994 2016-08-15 09:52:21Z suehring |
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| 120 | ! Bugfix in definition of generic topography |
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| 121 | ! |
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[1983] | 122 | ! 1982 2016-08-01 11:04:48Z suehring |
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| 123 | ! Bugfix concering consistency check for topography |
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| 124 | ! |
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[1969] | 125 | ! 1968 2016-07-18 12:01:49Z suehring |
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[1968] | 126 | ! Changed: PE-wise reading of topography file in order to avoid global definition |
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| 127 | ! of arrays nzb_local and nzb_tmp. Thereby, topography definition for single |
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| 128 | ! buildings and street canyons has changed, as well as flag setting for |
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| 129 | ! multigrid scheme. |
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| 130 | ! |
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| 131 | ! Bugfix in checking l_grid anisotropy. |
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| 132 | ! Simplify initial computation of lwall and vertical_influence, i.e. remove |
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| 133 | ! nzb_s_inner as it is still zero at this point. |
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[1932] | 134 | ! |
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[1943] | 135 | ! 1942 2016-06-14 12:18:18Z suehring |
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| 136 | ! Topography filter implemented to fill holes resolved by only one grid point. |
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| 137 | ! Initialization of flags for ws-scheme moved to advec_ws. |
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| 138 | ! |
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[1932] | 139 | ! 1931 2016-06-10 12:06:59Z suehring |
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| 140 | ! Rename multigrid into multigrid_noopt and multigrid_fast into multigrid |
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| 141 | ! |
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[1911] | 142 | ! 1910 2016-05-26 06:49:46Z raasch |
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| 143 | ! Bugfix: if topography is read from file, Neumann conditions are used for the |
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| 144 | ! nzb_local array (instead of cyclic conditions) in case that non-cyclic |
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| 145 | ! boundary conditions are switched on for the run |
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| 146 | ! |
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[1903] | 147 | ! 1902 2016-05-09 11:18:56Z suehring |
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[1910] | 148 | ! Set topography flags for multigrid solver only (not for multigrid_fast) |
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[1903] | 149 | ! |
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[1887] | 150 | ! 1886 2016-04-21 11:20:47Z suehring |
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| 151 | ! Bugfix: setting advection flags near walls |
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| 152 | ! reformulated index values for nzb_v_inner |
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| 153 | ! variable discriptions added in declaration block |
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| 154 | ! |
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[1846] | 155 | ! 1845 2016-04-08 08:29:13Z raasch |
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| 156 | ! nzb_2d removed |
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| 157 | ! |
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[1805] | 158 | ! 1804 2016-04-05 16:30:18Z maronga |
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| 159 | ! Removed code for parameter file check (__check) |
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| 160 | ! |
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[1780] | 161 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 162 | ! coupling_char is trimmed at every place it occurs, because it can have |
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| 163 | ! different length now |
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| 164 | ! |
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[1763] | 165 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 166 | ! Introduction of nested domain feature |
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| 167 | ! |
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[1744] | 168 | ! 1743 2016-01-13 10:23:51Z raasch |
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| 169 | ! Bugfix for calculation of nzb_s_outer and nzb_u_outer at north boundary of |
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| 170 | ! total domain |
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| 171 | ! |
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[1692] | 172 | ! 1691 2015-10-26 16:17:44Z maronga |
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| 173 | ! Renamed prandtl_layer to constant_flux_layer. |
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| 174 | ! |
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[1683] | 175 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 176 | ! Code annotations made doxygen readable |
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| 177 | ! |
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[1678] | 178 | ! 1677 2015-10-02 13:25:23Z boeske |
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| 179 | ! Bugfix: Ghost points are included in wall_flags_0 and wall_flags_00 |
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| 180 | ! |
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[1676] | 181 | ! 1675 2015-10-02 08:28:59Z gronemeier |
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| 182 | ! Bugfix: Definition of topography grid levels |
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| 183 | ! |
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[1662] | 184 | ! 1660 2015-09-21 08:15:16Z gronemeier |
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| 185 | ! Bugfix: Definition of topography grid levels if vertical grid stretching |
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| 186 | ! starts below the maximum topography height. |
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| 187 | ! |
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[1581] | 188 | ! 1580 2015-04-10 13:43:49Z suehring |
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| 189 | ! Bugfix: setting flags for 5th order scheme near buildings |
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| 190 | ! |
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[1576] | 191 | ! 1575 2015-03-27 09:56:27Z raasch |
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| 192 | ! adjustments for psolver-queries |
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| 193 | ! |
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[1558] | 194 | ! 1557 2015-03-05 16:43:04Z suehring |
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| 195 | ! Adjustment for monotoinic limiter |
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| 196 | ! |
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[1419] | 197 | ! 1418 2014-06-06 13:05:08Z fricke |
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| 198 | ! Bugfix: Change if-condition for stretched grid in the ocean, with the old |
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| 199 | ! condition and a negative value for dz_stretch_level the condition |
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| 200 | ! was always true for the whole model domain |
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| 201 | ! |
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[1410] | 202 | ! 1409 2014-05-23 12:11:32Z suehring |
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| 203 | ! Bugfix: set wall_flags_0 at inflow and outflow boundary also for i <= nxlu |
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| 204 | ! j <= nysv |
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| 205 | ! |
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[1354] | 206 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 207 | ! REAL constants provided with KIND-attribute |
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| 208 | ! |
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[1323] | 209 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 210 | ! REAL constants defined as wp-kind |
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| 211 | ! |
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[1321] | 212 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 213 | ! ONLY-attribute added to USE-statements, |
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| 214 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 215 | ! kinds are defined in new module kinds, |
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| 216 | ! revision history before 2012 removed, |
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| 217 | ! comment fields (!:) to be used for variable explanations added to |
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| 218 | ! all variable declaration statements |
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[1321] | 219 | ! |
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[1222] | 220 | ! 1221 2013-09-10 08:59:13Z raasch |
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| 221 | ! wall_flags_00 introduced to hold bits 32-63, |
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| 222 | ! additional 3D-flag arrays for replacing the 2D-index array nzb_s_inner in |
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| 223 | ! loops optimized for openACC (pres + flow_statistics) |
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| 224 | ! |
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[1093] | 225 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 226 | ! unused variables removed |
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| 227 | ! |
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[1070] | 228 | ! 1069 2012-11-28 16:18:43Z maronga |
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[1779] | 229 | ! bugfix: added coupling_char to TOPOGRAPHY_DATA to allow topography in the |
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| 230 | ! ocean model in case of coupled runs |
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[1070] | 231 | ! |
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[1037] | 232 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 233 | ! code put under GPL (PALM 3.9) |
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| 234 | ! |
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[1017] | 235 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 236 | ! lower index for calculating wall_flags_0 set to nzb_w_inner instead of |
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| 237 | ! nzb_w_inner+1 |
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| 238 | ! |
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[997] | 239 | ! 996 2012-09-07 10:41:47Z raasch |
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| 240 | ! little reformatting |
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| 241 | ! |
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[979] | 242 | ! 978 2012-08-09 08:28:32Z fricke |
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| 243 | ! Bugfix: nzb_max is set to nzt at non-cyclic lateral boundaries |
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| 244 | ! Bugfix: Set wall_flags_0 for inflow boundary |
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| 245 | ! |
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[928] | 246 | ! 927 2012-06-06 19:15:04Z raasch |
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| 247 | ! Wall flags are not set for multigrid method in case of masking method |
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| 248 | ! |
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[865] | 249 | ! 864 2012-03-27 15:10:33Z gryschka |
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[927] | 250 | ! In case of ocean and Dirichlet bottom bc for u and v dzu_mg and ddzu_pres |
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| 251 | ! were not correctly defined for k=1. |
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[865] | 252 | ! |
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[863] | 253 | ! 861 2012-03-26 14:18:34Z suehring |
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[861] | 254 | ! Set wall_flags_0. The array is needed for degradation in ws-scheme near walls, |
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| 255 | ! inflow and outflow boundaries as well as near the bottom and the top of the |
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[863] | 256 | ! model domain.! |
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[861] | 257 | ! Initialization of nzb_s_inner and nzb_w_inner. |
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| 258 | ! gls has to be at least nbgp to do not exceed the array bounds of nzb_local |
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| 259 | ! while setting wall_flags_0 |
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| 260 | ! |
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[844] | 261 | ! 843 2012-02-29 15:16:21Z gryschka |
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| 262 | ! In case of ocean and dirichlet bc for u and v at the bottom |
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| 263 | ! the first u-level ist defined at same height as the first w-level |
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| 264 | ! |
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[819] | 265 | ! 818 2012-02-08 16:11:23Z maronga |
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| 266 | ! Bugfix: topo_height is only required if topography is used. It is thus now |
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| 267 | ! allocated in the topography branch |
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| 268 | ! |
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[810] | 269 | ! 809 2012-01-30 13:32:58Z maronga |
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| 270 | ! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives |
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| 271 | ! |
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[808] | 272 | ! 807 2012-01-25 11:53:51Z maronga |
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| 273 | ! New cpp directive "__check" implemented which is used by check_namelist_files |
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| 274 | ! |
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[1] | 275 | ! Revision 1.1 1997/08/11 06:17:45 raasch |
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| 276 | ! Initial revision (Testversion) |
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| 277 | ! |
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| 278 | ! |
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| 279 | ! Description: |
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[2696] | 280 | ! -----------------------------------------------------------------------------! |
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[1682] | 281 | !> Creating grid depending constants |
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[2696] | 282 | !> @todo: Move initialization mixing length |
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| 283 | !> @todo: Rearrange topo flag list |
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| 284 | !> @todo: reference 3D buildings on top of orography is not tested and may need |
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| 285 | !> further improvement for steep slopes |
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| 286 | !> @todo: Use more advanced setting of building type at filled holes |
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[1] | 287 | !------------------------------------------------------------------------------! |
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[1682] | 288 | SUBROUTINE init_grid |
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| 289 | |
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[1942] | 290 | USE advec_ws, & |
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| 291 | ONLY: ws_init_flags |
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[1] | 292 | |
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[1320] | 293 | USE arrays_3d, & |
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[2696] | 294 | ONLY: dd2zu, ddzu, ddzu_pres, ddzw, dzu, dzw, zu, zw |
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[1320] | 295 | |
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[1353] | 296 | USE control_parameters, & |
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[1910] | 297 | ONLY: bc_lr_cyc, bc_ns_cyc, building_height, building_length_x, & |
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[1320] | 298 | building_length_y, building_wall_left, building_wall_south, & |
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| 299 | canyon_height, canyon_wall_left, canyon_wall_south, & |
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[1691] | 300 | canyon_width_x, canyon_width_y, constant_flux_layer, & |
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[2365] | 301 | dp_level_ind_b, dz, dz_max, dz_stretch_factor, & |
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[2696] | 302 | dz_stretch_level, dz_stretch_level_index, grid_level, & |
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| 303 | force_bound_l, force_bound_r, force_bound_n, force_bound_s, & |
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| 304 | ibc_uv_b, inflow_l, inflow_n, inflow_r, inflow_s, & |
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| 305 | masking_method, maximum_grid_level, message_string, & |
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[2021] | 306 | momentum_advec, nest_domain, nest_bound_l, nest_bound_n, & |
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| 307 | nest_bound_r, nest_bound_s, ocean, outflow_l, outflow_n, & |
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[1762] | 308 | outflow_r, outflow_s, psolver, scalar_advec, topography, & |
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[2232] | 309 | topography_grid_convention, tunnel_height, tunnel_length, & |
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| 310 | tunnel_width_x, tunnel_width_y, tunnel_wall_depth, & |
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| 311 | use_surface_fluxes, use_top_fluxes, wall_adjustment_factor |
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[2021] | 312 | |
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[1320] | 313 | USE grid_variables, & |
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[2232] | 314 | ONLY: ddx, ddx2, ddy, ddy2, dx, dx2, dy, dy2, zu_s_inner, zw_w_inner |
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[1320] | 315 | |
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| 316 | USE indices, & |
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[2696] | 317 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nz, & |
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[2232] | 318 | nzb, nzb_diff, nzb_diff_s_inner, nzb_diff_s_outer, & |
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| 319 | nzb_max, nzb_s_inner, nzb_s_outer, nzb_u_inner, & |
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[1845] | 320 | nzb_u_outer, nzb_v_inner, nzb_v_outer, nzb_w_inner, & |
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[2696] | 321 | nzb_w_outer, nzt |
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[1320] | 322 | |
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| 323 | USE kinds |
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[2696] | 324 | |
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[1] | 325 | USE pegrid |
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| 326 | |
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[2696] | 327 | USE poismg_noopt_mod |
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| 328 | |
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[2232] | 329 | USE surface_mod, & |
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[2698] | 330 | ONLY: get_topography_top_index, get_topography_top_index_ji, init_bc |
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[2232] | 331 | |
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[2365] | 332 | USE vertical_nesting_mod, & |
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| 333 | ONLY: vnested, vnest_init_grid |
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| 334 | |
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[1] | 335 | IMPLICIT NONE |
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| 336 | |
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[2696] | 337 | INTEGER(iwp) :: i !< index variable along x |
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[1968] | 338 | INTEGER(iwp) :: j !< index variable along y |
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| 339 | INTEGER(iwp) :: k !< index variable along z |
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[2232] | 340 | INTEGER(iwp) :: k_top !< topography top index on local PE |
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[1968] | 341 | INTEGER(iwp) :: l !< loop variable |
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| 342 | INTEGER(iwp) :: nzb_local_max !< vertical grid index of maximum topography height |
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| 343 | INTEGER(iwp) :: nzb_local_min !< vertical grid index of minimum topography height |
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[2232] | 344 | |
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[1968] | 345 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
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| 346 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_tmp !< dummy to calculate topography indices on u- and v-grid |
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[1] | 347 | |
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[2696] | 348 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
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[2232] | 349 | |
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[1886] | 350 | REAL(wp) :: dz_stretched !< stretched vertical grid spacing |
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[861] | 351 | |
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[1] | 352 | |
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| 353 | ! |
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[709] | 354 | !-- Calculation of horizontal array bounds including ghost layers |
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[667] | 355 | nxlg = nxl - nbgp |
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| 356 | nxrg = nxr + nbgp |
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| 357 | nysg = nys - nbgp |
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| 358 | nyng = nyn + nbgp |
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[709] | 359 | |
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[667] | 360 | ! |
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[1] | 361 | !-- Allocate grid arrays |
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[1353] | 362 | ALLOCATE( ddzu(1:nzt+1), ddzw(1:nzt+1), dd2zu(1:nzt), dzu(1:nzt+1), & |
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[2696] | 363 | dzw(1:nzt+1), zu(nzb:nzt+1), zw(nzb:nzt+1) ) |
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[1] | 364 | |
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| 365 | ! |
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| 366 | !-- Compute height of u-levels from constant grid length and dz stretch factors |
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[1353] | 367 | IF ( dz == -1.0_wp ) THEN |
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[254] | 368 | message_string = 'missing dz' |
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| 369 | CALL message( 'init_grid', 'PA0200', 1, 2, 0, 6, 0 ) |
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[1353] | 370 | ELSEIF ( dz <= 0.0_wp ) THEN |
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[254] | 371 | WRITE( message_string, * ) 'dz=',dz,' <= 0.0' |
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| 372 | CALL message( 'init_grid', 'PA0201', 1, 2, 0, 6, 0 ) |
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[1] | 373 | ENDIF |
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[94] | 374 | |
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[1] | 375 | ! |
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[94] | 376 | !-- Define the vertical grid levels |
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| 377 | IF ( .NOT. ocean ) THEN |
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| 378 | ! |
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| 379 | !-- Grid for atmosphere with surface at z=0 (k=0, w-grid). |
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[843] | 380 | !-- The second u-level (k=1) corresponds to the top of the |
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[94] | 381 | !-- Prandtl-layer. |
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[667] | 382 | |
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| 383 | IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN |
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[1353] | 384 | zu(0) = 0.0_wp |
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| 385 | ! zu(0) = - dz * 0.5_wp |
---|
[667] | 386 | ELSE |
---|
[1353] | 387 | zu(0) = - dz * 0.5_wp |
---|
[667] | 388 | ENDIF |
---|
[1353] | 389 | zu(1) = dz * 0.5_wp |
---|
[1] | 390 | |
---|
[94] | 391 | dz_stretch_level_index = nzt+1 |
---|
| 392 | dz_stretched = dz |
---|
| 393 | DO k = 2, nzt+1 |
---|
| 394 | IF ( dz_stretch_level <= zu(k-1) .AND. dz_stretched < dz_max ) THEN |
---|
| 395 | dz_stretched = dz_stretched * dz_stretch_factor |
---|
| 396 | dz_stretched = MIN( dz_stretched, dz_max ) |
---|
| 397 | IF ( dz_stretch_level_index == nzt+1 ) dz_stretch_level_index = k-1 |
---|
| 398 | ENDIF |
---|
| 399 | zu(k) = zu(k-1) + dz_stretched |
---|
| 400 | ENDDO |
---|
[1] | 401 | |
---|
| 402 | ! |
---|
[94] | 403 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 404 | !-- corresponding u-levels. In case of dirichlet bc for u and v at the |
---|
| 405 | !-- ground the first u- and w-level (k=0) are defined at same height (z=0). |
---|
| 406 | !-- The top w-level is extrapolated linearly. |
---|
[1353] | 407 | zw(0) = 0.0_wp |
---|
[94] | 408 | DO k = 1, nzt |
---|
[1353] | 409 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 410 | ENDDO |
---|
[1353] | 411 | zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) |
---|
[1] | 412 | |
---|
[94] | 413 | ELSE |
---|
[1] | 414 | ! |
---|
[843] | 415 | !-- Grid for ocean with free water surface is at k=nzt (w-grid). |
---|
| 416 | !-- In case of neumann bc at the ground the first first u-level (k=0) lies |
---|
| 417 | !-- below the first w-level (k=0). In case of dirichlet bc the first u- and |
---|
| 418 | !-- w-level are defined at same height, but staggered from the second level. |
---|
| 419 | !-- The second u-level (k=1) corresponds to the top of the Prandtl-layer. |
---|
[1353] | 420 | zu(nzt+1) = dz * 0.5_wp |
---|
| 421 | zu(nzt) = - dz * 0.5_wp |
---|
[94] | 422 | |
---|
| 423 | dz_stretch_level_index = 0 |
---|
| 424 | dz_stretched = dz |
---|
| 425 | DO k = nzt-1, 0, -1 |
---|
[1418] | 426 | ! |
---|
| 427 | !-- The default value of dz_stretch_level is positive, thus the first |
---|
| 428 | !-- condition is always true. Hence, the second condition is necessary. |
---|
| 429 | IF ( dz_stretch_level >= zu(k+1) .AND. dz_stretch_level <= 0.0 & |
---|
| 430 | .AND. dz_stretched < dz_max ) THEN |
---|
[94] | 431 | dz_stretched = dz_stretched * dz_stretch_factor |
---|
| 432 | dz_stretched = MIN( dz_stretched, dz_max ) |
---|
| 433 | IF ( dz_stretch_level_index == 0 ) dz_stretch_level_index = k+1 |
---|
| 434 | ENDIF |
---|
| 435 | zu(k) = zu(k+1) - dz_stretched |
---|
| 436 | ENDDO |
---|
| 437 | |
---|
| 438 | ! |
---|
| 439 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 440 | !-- corresponding u-levels, except in case of dirichlet bc for u and v |
---|
| 441 | !-- at the ground. In this case the first u- and w-level are defined at |
---|
| 442 | !-- same height. The top w-level (nzt+1) is not used but set for |
---|
| 443 | !-- consistency, since w and all scalar variables are defined up tp nzt+1. |
---|
[94] | 444 | zw(nzt+1) = dz |
---|
[1353] | 445 | zw(nzt) = 0.0_wp |
---|
[94] | 446 | DO k = 0, nzt |
---|
[1353] | 447 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 448 | ENDDO |
---|
| 449 | |
---|
[843] | 450 | ! |
---|
| 451 | !-- In case of dirichlet bc for u and v the first u- and w-level are defined |
---|
| 452 | !-- at same height. |
---|
| 453 | IF ( ibc_uv_b == 0 ) THEN |
---|
| 454 | zu(0) = zw(0) |
---|
| 455 | ENDIF |
---|
| 456 | |
---|
[94] | 457 | ENDIF |
---|
| 458 | |
---|
| 459 | ! |
---|
[1] | 460 | !-- Compute grid lengths. |
---|
| 461 | DO k = 1, nzt+1 |
---|
| 462 | dzu(k) = zu(k) - zu(k-1) |
---|
[1353] | 463 | ddzu(k) = 1.0_wp / dzu(k) |
---|
[1] | 464 | dzw(k) = zw(k) - zw(k-1) |
---|
[1353] | 465 | ddzw(k) = 1.0_wp / dzw(k) |
---|
[1] | 466 | ENDDO |
---|
| 467 | |
---|
| 468 | DO k = 1, nzt |
---|
[1353] | 469 | dd2zu(k) = 1.0_wp / ( dzu(k) + dzu(k+1) ) |
---|
[1] | 470 | ENDDO |
---|
[667] | 471 | |
---|
| 472 | ! |
---|
[709] | 473 | !-- The FFT- SOR-pressure solvers assume grid spacings of a staggered grid |
---|
| 474 | !-- everywhere. For the actual grid, the grid spacing at the lowest level |
---|
| 475 | !-- is only dz/2, but should be dz. Therefore, an additional array |
---|
| 476 | !-- containing with appropriate grid information is created for these |
---|
| 477 | !-- solvers. |
---|
[1575] | 478 | IF ( psolver(1:9) /= 'multigrid' ) THEN |
---|
[667] | 479 | ALLOCATE( ddzu_pres(1:nzt+1) ) |
---|
| 480 | ddzu_pres = ddzu |
---|
[864] | 481 | ddzu_pres(1) = ddzu_pres(2) ! change for lowest level |
---|
[1] | 482 | ENDIF |
---|
| 483 | |
---|
| 484 | ! |
---|
| 485 | !-- Compute the reciprocal values of the horizontal grid lengths. |
---|
[1353] | 486 | ddx = 1.0_wp / dx |
---|
| 487 | ddy = 1.0_wp / dy |
---|
[1] | 488 | dx2 = dx * dx |
---|
| 489 | dy2 = dy * dy |
---|
[1353] | 490 | ddx2 = 1.0_wp / dx2 |
---|
| 491 | ddy2 = 1.0_wp / dy2 |
---|
[1] | 492 | |
---|
| 493 | ! |
---|
[2696] | 494 | !-- Allocate 3D array to set topography |
---|
| 495 | ALLOCATE( topo(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 496 | topo = 0 |
---|
| 497 | ! |
---|
| 498 | !-- Initialize topography by generic topography or read from topography from file. |
---|
| 499 | CALL init_topo( topo ) |
---|
| 500 | ! |
---|
| 501 | !-- Set flags to mask topography on the grid. |
---|
| 502 | CALL set_topo_flags( topo ) |
---|
| 503 | ! |
---|
| 504 | !-- Calculate wall flag arrays for the multigrid method. |
---|
| 505 | !-- Please note, wall flags are only applied in the non-optimized version. |
---|
| 506 | IF ( psolver == 'multigrid_noopt' ) CALL poismg_noopt_init |
---|
| 507 | |
---|
| 508 | ! |
---|
| 509 | !-- Init flags for ws-scheme to degrade order of the numerics near walls, i.e. |
---|
| 510 | !-- to decrease the numerical stencil appropriately. |
---|
| 511 | IF ( momentum_advec == 'ws-scheme' .OR. scalar_advec == 'ws-scheme' ) & |
---|
| 512 | CALL ws_init_flags |
---|
| 513 | |
---|
| 514 | ! |
---|
| 515 | !-- Calculated grid-dependent as well as near-wall mixing length |
---|
| 516 | CALL init_mixing_length |
---|
| 517 | |
---|
| 518 | ! |
---|
| 519 | !-- Determine the maximum level of topography. It is used for |
---|
| 520 | !-- steering the degradation of order of the applied advection scheme, |
---|
| 521 | !-- as well in the lpm. |
---|
| 522 | !-- In case of non-cyclic lateral boundaries, the order of the advection |
---|
| 523 | !-- scheme has to be reduced up to nzt (required at the lateral boundaries). |
---|
| 524 | k_top = 0 |
---|
| 525 | DO i = nxl, nxr |
---|
| 526 | DO j = nys, nyn |
---|
| 527 | DO k = nzb, nzt + 1 |
---|
| 528 | k_top = MAX( k_top, MERGE( k, 0, & |
---|
| 529 | .NOT. BTEST( topo(k,j,i), 0 ) ) ) |
---|
| 530 | ENDDO |
---|
| 531 | ENDDO |
---|
[1] | 532 | ENDDO |
---|
[2696] | 533 | #if defined( __parallel ) |
---|
| 534 | CALL MPI_ALLREDUCE( k_top + 1, nzb_max, 1, MPI_INTEGER, & !is +1 really necessary here? |
---|
| 535 | MPI_MAX, comm2d, ierr ) |
---|
| 536 | #else |
---|
| 537 | nzb_max = k_top + 1 |
---|
| 538 | #endif |
---|
| 539 | IF ( inflow_l .OR. outflow_l .OR. force_bound_l .OR. nest_bound_l .OR.& |
---|
| 540 | inflow_r .OR. outflow_r .OR. force_bound_r .OR. nest_bound_r .OR.& |
---|
| 541 | inflow_n .OR. outflow_n .OR. force_bound_n .OR. nest_bound_n .OR.& |
---|
| 542 | inflow_s .OR. outflow_s .OR. force_bound_s .OR. nest_bound_s ) & |
---|
| 543 | nzb_max = nzt |
---|
| 544 | ! |
---|
| 545 | !-- Finally, if topography extents up to the model top, limit nzb_max to nzt. |
---|
| 546 | nzb_max = MIN( nzb_max, nzt ) |
---|
[1] | 547 | |
---|
| 548 | ! |
---|
[2696] | 549 | !-- Initialize boundary conditions via surface type |
---|
| 550 | CALL init_bc |
---|
| 551 | |
---|
| 552 | ! |
---|
| 553 | !-- Allocate and set topography height arrays required for data output |
---|
| 554 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 555 | ! |
---|
| 556 | !-- Allocate and set the arrays containing the topography height |
---|
| 557 | IF ( nxr == nx .AND. nyn /= ny ) THEN |
---|
| 558 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn), & |
---|
| 559 | zw_w_inner(nxl:nxr+1,nys:nyn) ) |
---|
| 560 | ELSEIF ( nxr /= nx .AND. nyn == ny ) THEN |
---|
| 561 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn+1), & |
---|
| 562 | zw_w_inner(nxl:nxr,nys:nyn+1) ) |
---|
| 563 | ELSEIF ( nxr == nx .AND. nyn == ny ) THEN |
---|
| 564 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn+1), & |
---|
| 565 | zw_w_inner(nxl:nxr+1,nys:nyn+1) ) |
---|
| 566 | ELSE |
---|
| 567 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn), & |
---|
| 568 | zw_w_inner(nxl:nxr,nys:nyn) ) |
---|
| 569 | ENDIF |
---|
| 570 | |
---|
| 571 | zu_s_inner = 0.0_wp |
---|
| 572 | zw_w_inner = 0.0_wp |
---|
| 573 | ! |
---|
| 574 | !-- Determine local topography height on scalar and w-grid. Note, setting |
---|
| 575 | !-- lateral boundary values is not necessary, realized via wall_flags_0 |
---|
| 576 | !-- array. Further, please note that loop bounds are different from |
---|
| 577 | !-- nxl to nxr and nys to nyn on south and right model boundary, hence, |
---|
| 578 | !-- use intrinsic lbound and ubound functions to infer array bounds. |
---|
| 579 | DO i = LBOUND(zu_s_inner, 1), UBOUND(zu_s_inner, 1) |
---|
| 580 | DO j = LBOUND(zu_s_inner, 2), UBOUND(zu_s_inner, 2) |
---|
| 581 | ! |
---|
| 582 | !-- Topography height on scalar grid. Therefore, determine index of |
---|
| 583 | !-- upward-facing surface element on scalar grid. |
---|
[2698] | 584 | zu_s_inner(i,j) = zu( get_topography_top_index_ji( j, i, 's' ) ) |
---|
[2696] | 585 | ! |
---|
| 586 | !-- Topography height on w grid. Therefore, determine index of |
---|
| 587 | !-- upward-facing surface element on w grid. |
---|
[2698] | 588 | zw_w_inner(i,j) = zw( get_topography_top_index_ji( j, i, 's' ) ) |
---|
[2696] | 589 | ENDDO |
---|
| 590 | ENDDO |
---|
| 591 | ENDIF |
---|
| 592 | |
---|
| 593 | ! |
---|
| 594 | !-- In the following, calculate 2D index arrays. Note, these will be removed |
---|
| 595 | !-- soon. |
---|
[1] | 596 | !-- Allocate outer and inner index arrays for topography and set |
---|
[2232] | 597 | !-- defaults. |
---|
[2696] | 598 | ALLOCATE( nzb_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 599 | nzb_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 600 | nzb_u_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 601 | nzb_u_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 602 | nzb_v_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 603 | nzb_v_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 604 | nzb_w_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 605 | nzb_w_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 606 | nzb_diff_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 607 | nzb_diff_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 608 | nzb_local(nysg:nyng,nxlg:nxrg), & |
---|
| 609 | nzb_tmp(nysg:nyng,nxlg:nxrg) ) |
---|
| 610 | ! |
---|
| 611 | !-- Initialize 2D-index arrays. Note, these will be removed soon! |
---|
| 612 | nzb_local(nys:nyn,nxl:nxr) = get_topography_top_index( 's' ) |
---|
| 613 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[1] | 614 | |
---|
[2696] | 615 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 616 | #if defined( __parallel ) |
---|
| 617 | CALL MPI_ALLREDUCE( MAXVAL( get_topography_top_index( 's' ) ), & |
---|
| 618 | nzb_local_max, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr ) |
---|
| 619 | CALL MPI_ALLREDUCE( MINVAL( get_topography_top_index( 's' ) ), & |
---|
| 620 | nzb_local_min, 1, MPI_INTEGER, MPI_MIN, comm2d, ierr ) |
---|
| 621 | #else |
---|
| 622 | nzb_local_max = MAXVAL( get_topography_top_index( 's' ) ) |
---|
| 623 | nzb_local_min = MINVAL( get_topography_top_index( 's' ) ) |
---|
| 624 | #endif |
---|
| 625 | ! |
---|
| 626 | !-- Consistency checks |
---|
| 627 | IF ( nzb_local_min < 0 .OR. nzb_local_max > nz + 1 ) THEN |
---|
| 628 | WRITE( message_string, * ) 'nzb_local values are outside the', & |
---|
| 629 | 'model domain', & |
---|
| 630 | '&MINVAL( nzb_local ) = ', nzb_local_min, & |
---|
| 631 | '&MAXVAL( nzb_local ) = ', nzb_local_max |
---|
| 632 | CALL message( 'init_grid', 'PA0210', 1, 2, 0, 6, 0 ) |
---|
| 633 | ENDIF |
---|
| 634 | ENDIF |
---|
[1] | 635 | |
---|
| 636 | nzb_s_inner = nzb; nzb_s_outer = nzb |
---|
| 637 | nzb_u_inner = nzb; nzb_u_outer = nzb |
---|
| 638 | nzb_v_inner = nzb; nzb_v_outer = nzb |
---|
| 639 | nzb_w_inner = nzb; nzb_w_outer = nzb |
---|
| 640 | |
---|
| 641 | ! |
---|
[19] | 642 | !-- Define vertical gridpoint from (or to) which on the usual finite difference |
---|
[1] | 643 | !-- form (which does not use surface fluxes) is applied |
---|
[1691] | 644 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 645 | nzb_diff = nzb + 2 |
---|
| 646 | ELSE |
---|
| 647 | nzb_diff = nzb + 1 |
---|
| 648 | ENDIF |
---|
| 649 | |
---|
| 650 | nzb_diff_s_inner = nzb_diff; nzb_diff_s_outer = nzb_diff |
---|
[2696] | 651 | ! |
---|
| 652 | !-- Set Neumann conditions for topography. Will be removed soon. |
---|
| 653 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 654 | IF ( nys == 0 ) THEN |
---|
| 655 | nzb_local(-1,:) = nzb_local(0,:) |
---|
| 656 | ELSEIF ( nyn == ny ) THEN |
---|
| 657 | nzb_local(ny+1,:) = nzb_local(ny,:) |
---|
| 658 | ENDIF |
---|
| 659 | ENDIF |
---|
[1] | 660 | |
---|
[2696] | 661 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 662 | IF ( nxl == 0 ) THEN |
---|
| 663 | nzb_local(:,-1) = nzb_local(:,0) |
---|
| 664 | nzb_local(:,-2) = nzb_local(:,0) |
---|
| 665 | nzb_local(:,-3) = nzb_local(:,0) |
---|
| 666 | ELSEIF ( nxr == nx ) THEN |
---|
| 667 | nzb_local(:,nx+1) = nzb_local(:,nx) |
---|
| 668 | nzb_local(:,nx+2) = nzb_local(:,nx) |
---|
| 669 | nzb_local(:,nx+3) = nzb_local(:,nx) |
---|
| 670 | ENDIF |
---|
| 671 | ENDIF |
---|
[1] | 672 | ! |
---|
[2696] | 673 | !-- Initialization of 2D index arrays, will be removed soon! |
---|
| 674 | !-- Initialize nzb_s_inner and nzb_w_inner |
---|
| 675 | nzb_s_inner = nzb_local |
---|
| 676 | nzb_w_inner = nzb_local |
---|
| 677 | |
---|
| 678 | ! |
---|
| 679 | !-- Initialize remaining index arrays: |
---|
| 680 | !-- first pre-initialize them with nzb_s_inner... |
---|
| 681 | nzb_u_inner = nzb_s_inner |
---|
| 682 | nzb_u_outer = nzb_s_inner |
---|
| 683 | nzb_v_inner = nzb_s_inner |
---|
| 684 | nzb_v_outer = nzb_s_inner |
---|
| 685 | nzb_w_outer = nzb_s_inner |
---|
| 686 | nzb_s_outer = nzb_s_inner |
---|
| 687 | |
---|
| 688 | ! |
---|
| 689 | !-- nzb_s_outer: |
---|
| 690 | !-- extend nzb_local east-/westwards first, then north-/southwards |
---|
| 691 | nzb_tmp = nzb_local |
---|
| 692 | DO j = nys, nyn |
---|
| 693 | DO i = nxl, nxr |
---|
| 694 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i), & |
---|
| 695 | nzb_local(j,i+1) ) |
---|
| 696 | ENDDO |
---|
| 697 | ENDDO |
---|
| 698 | |
---|
| 699 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 700 | |
---|
| 701 | DO i = nxl, nxr |
---|
| 702 | DO j = nys, nyn |
---|
| 703 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
| 704 | nzb_tmp(j+1,i) ) |
---|
| 705 | ENDDO |
---|
| 706 | ! |
---|
| 707 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 708 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 709 | IF ( nys == 0 ) THEN |
---|
| 710 | j = -1 |
---|
| 711 | nzb_s_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 712 | ENDIF |
---|
| 713 | IF ( nyn == ny ) THEN |
---|
| 714 | j = ny + 1 |
---|
| 715 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 716 | ENDIF |
---|
| 717 | ENDDO |
---|
| 718 | ! |
---|
| 719 | !-- nzb_w_outer: |
---|
| 720 | !-- identical to nzb_s_outer |
---|
| 721 | nzb_w_outer = nzb_s_outer |
---|
| 722 | ! |
---|
| 723 | !-- nzb_u_inner: |
---|
| 724 | !-- extend nzb_local rightwards only |
---|
| 725 | nzb_tmp = nzb_local |
---|
| 726 | DO j = nys, nyn |
---|
| 727 | DO i = nxl, nxr |
---|
| 728 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i) ) |
---|
| 729 | ENDDO |
---|
| 730 | ENDDO |
---|
| 731 | |
---|
| 732 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 733 | |
---|
| 734 | nzb_u_inner = nzb_tmp |
---|
| 735 | ! |
---|
| 736 | !-- nzb_u_outer: |
---|
| 737 | !-- extend current nzb_tmp (nzb_u_inner) north-/southwards |
---|
| 738 | DO i = nxl, nxr |
---|
| 739 | DO j = nys, nyn |
---|
| 740 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
| 741 | nzb_tmp(j+1,i) ) |
---|
| 742 | ENDDO |
---|
| 743 | ! |
---|
| 744 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 745 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 746 | IF ( nys == 0 ) THEN |
---|
| 747 | j = -1 |
---|
| 748 | nzb_u_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 749 | ENDIF |
---|
| 750 | IF ( nyn == ny ) THEN |
---|
| 751 | j = ny + 1 |
---|
| 752 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 753 | ENDIF |
---|
| 754 | ENDDO |
---|
| 755 | |
---|
| 756 | ! |
---|
| 757 | !-- nzb_v_inner: |
---|
| 758 | !-- extend nzb_local northwards only |
---|
| 759 | nzb_tmp = nzb_local |
---|
| 760 | DO i = nxl, nxr |
---|
| 761 | DO j = nys, nyn |
---|
| 762 | nzb_tmp(j,i) = MAX( nzb_local(j-1,i), nzb_local(j,i) ) |
---|
| 763 | ENDDO |
---|
| 764 | ENDDO |
---|
| 765 | |
---|
| 766 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 767 | nzb_v_inner = nzb_tmp |
---|
| 768 | |
---|
| 769 | ! |
---|
| 770 | !-- nzb_v_outer: |
---|
| 771 | !-- extend current nzb_tmp (nzb_v_inner) right-/leftwards |
---|
| 772 | DO j = nys, nyn |
---|
| 773 | DO i = nxl, nxr |
---|
| 774 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i), & |
---|
| 775 | nzb_tmp(j,i+1) ) |
---|
| 776 | ENDDO |
---|
| 777 | ! |
---|
| 778 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 779 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 780 | IF ( nxl == 0 ) THEN |
---|
| 781 | i = -1 |
---|
| 782 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i+1), nzb_tmp(j,i) ) |
---|
| 783 | ENDIF |
---|
| 784 | IF ( nxr == nx ) THEN |
---|
| 785 | i = nx + 1 |
---|
| 786 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i) ) |
---|
| 787 | ENDIF |
---|
| 788 | ENDDO |
---|
| 789 | |
---|
| 790 | ! |
---|
| 791 | !-- Exchange of lateral boundary values (parallel computers) and cyclic |
---|
| 792 | !-- boundary conditions, if applicable. |
---|
| 793 | !-- Since nzb_s_inner and nzb_w_inner are derived directly from nzb_local |
---|
| 794 | !-- they do not require exchange and are not included here. |
---|
| 795 | CALL exchange_horiz_2d_int( nzb_u_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 796 | CALL exchange_horiz_2d_int( nzb_u_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 797 | CALL exchange_horiz_2d_int( nzb_v_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 798 | CALL exchange_horiz_2d_int( nzb_v_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 799 | CALL exchange_horiz_2d_int( nzb_w_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 800 | CALL exchange_horiz_2d_int( nzb_s_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 801 | |
---|
| 802 | ! |
---|
| 803 | !-- Set the individual index arrays which define the k index from which on |
---|
| 804 | !-- the usual finite difference form (which does not use surface fluxes) is |
---|
| 805 | !-- applied |
---|
| 806 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 807 | nzb_diff_s_inner = nzb_s_inner + 2 |
---|
| 808 | nzb_diff_s_outer = nzb_s_outer + 2 |
---|
| 809 | ELSE |
---|
| 810 | nzb_diff_s_inner = nzb_s_inner + 1 |
---|
| 811 | nzb_diff_s_outer = nzb_s_outer + 1 |
---|
| 812 | ENDIF |
---|
| 813 | ! |
---|
| 814 | !-- Vertical nesting: communicate vertical grid level arrays between fine and |
---|
| 815 | !-- coarse grid |
---|
| 816 | IF ( vnested ) CALL vnest_init_grid |
---|
| 817 | |
---|
| 818 | END SUBROUTINE init_grid |
---|
| 819 | |
---|
| 820 | ! Description: |
---|
| 821 | ! -----------------------------------------------------------------------------! |
---|
| 822 | !> Set temporary topography flags and reference buildings on top of underlying |
---|
| 823 | !> orography. |
---|
| 824 | !------------------------------------------------------------------------------! |
---|
| 825 | SUBROUTINE process_topography( topo_3d ) |
---|
| 826 | |
---|
| 827 | USE arrays_3d, & |
---|
[2747] | 828 | ONLY: zu, zw |
---|
[2696] | 829 | |
---|
| 830 | USE control_parameters, & |
---|
| 831 | ONLY: bc_lr_cyc, bc_ns_cyc, land_surface, ocean, urban_surface |
---|
| 832 | |
---|
| 833 | USE indices, & |
---|
| 834 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nzb, & |
---|
| 835 | nzt |
---|
| 836 | |
---|
| 837 | USE netcdf_data_input_mod, & |
---|
| 838 | ONLY: buildings_f, building_id_f, input_pids_static, & |
---|
| 839 | terrain_height_f |
---|
| 840 | |
---|
| 841 | USE kinds |
---|
| 842 | |
---|
| 843 | USE pegrid |
---|
| 844 | |
---|
| 845 | IMPLICIT NONE |
---|
| 846 | |
---|
[2867] | 847 | INTEGER(iwp) :: i !< running index along x-direction |
---|
| 848 | INTEGER(iwp) :: j !< running index along y-direction |
---|
| 849 | INTEGER(iwp) :: k !< running index along z-direction with respect to numeric grid |
---|
| 850 | INTEGER(iwp) :: k2 !< running index along z-direction with respect to netcdf grid |
---|
| 851 | INTEGER(iwp) :: nr !< index variable indication maximum terrain height for respective building ID |
---|
| 852 | INTEGER(iwp) :: num_build !< counter for number of buildings |
---|
| 853 | INTEGER(iwp) :: topo_top_index !< orography top index, used to map 3D buildings onto terrain |
---|
[2696] | 854 | |
---|
| 855 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: displace_dum !< displacements of start addresses, used for MPI_ALLGATHERV |
---|
| 856 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids !< building IDs on entire model domain |
---|
| 857 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_final !< building IDs on entire model domain, multiple occurences are sorted out |
---|
| 858 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_final_tmp !< temporary array used for resizing |
---|
| 859 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_l !< building IDs on local subdomain |
---|
| 860 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_l_tmp !< temporary array used to resize array of building IDs |
---|
| 861 | |
---|
| 862 | INTEGER(iwp), DIMENSION(0:numprocs-1) :: num_buildings !< number of buildings with different ID on entire model domain |
---|
| 863 | INTEGER(iwp), DIMENSION(0:numprocs-1) :: num_buildings_l !< number of buildings with different ID on local subdomain |
---|
| 864 | |
---|
| 865 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo_3d !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
| 866 | |
---|
| 867 | REAL(wp) :: ocean_offset !< offset to consider inverse vertical coordinate at topography definition |
---|
| 868 | REAL(wp), DIMENSION(:), ALLOCATABLE :: oro_max !< maximum terrain height occupied by an building with certain id |
---|
| 869 | REAL(wp), DIMENSION(:), ALLOCATABLE :: oro_max_l !< maximum terrain height occupied by an building with certain id, on local subdomain |
---|
| 870 | |
---|
| 871 | ! |
---|
| 872 | !-- In the following, buildings and orography are further preprocessed |
---|
| 873 | !-- before they are mapped on the LES grid. |
---|
| 874 | !-- Buildings are mapped on top of the orography by maintaining the roof |
---|
| 875 | !-- shape of the building. This can be achieved by referencing building on |
---|
| 876 | !-- top of the maximum terrain height within the area occupied by the |
---|
| 877 | !-- respective building. As buildings and terrain height are defined PE-wise, |
---|
| 878 | !-- parallelization of this referencing is required (a building can be |
---|
| 879 | !-- distributed between different PEs). |
---|
| 880 | !-- In a first step, determine the number of buildings with different |
---|
| 881 | !-- building id on each PE. In a next step, all building ids are gathered |
---|
| 882 | !-- into one array which is present to all PEs. For each building ID, |
---|
| 883 | !-- the maximum terrain height occupied by the respective building is |
---|
| 884 | !-- computed and distributed to each PE. |
---|
| 885 | !-- Finally, for each building id and its respective reference orography, |
---|
| 886 | !-- builidings are mapped on top. |
---|
| 887 | !-- |
---|
| 888 | !-- First, pre-set topography flags, bit 1 indicates orography, bit 2 |
---|
| 889 | !-- buildings |
---|
| 890 | !-- classify the respective surfaces. |
---|
| 891 | topo_3d = IBSET( topo_3d, 0 ) |
---|
| 892 | topo_3d(nzb,:,:) = IBCLR( topo_3d(nzb,:,:), 0 ) |
---|
| 893 | ! |
---|
| 894 | !-- Reference buildings on top of orography. This is not necessary |
---|
| 895 | !-- if topography is read from ASCII file as no distinction between buildings |
---|
| 896 | !-- and terrain height can be made. Moreover, this is also not necessary if |
---|
| 897 | !-- urban-surface and land-surface model are used at the same time. |
---|
| 898 | IF ( input_pids_static ) THEN |
---|
| 899 | num_buildings_l = 0 |
---|
| 900 | num_buildings = 0 |
---|
| 901 | ! |
---|
| 902 | !-- Allocate at least one element for building ids, |
---|
| 903 | ALLOCATE( build_ids_l(1) ) |
---|
| 904 | DO i = nxl, nxr |
---|
| 905 | DO j = nys, nyn |
---|
| 906 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 907 | IF ( num_buildings_l(myid) > 0 ) THEN |
---|
| 908 | IF ( ANY( building_id_f%var(j,i) .EQ. build_ids_l ) ) THEN |
---|
| 909 | CYCLE |
---|
| 910 | ELSE |
---|
| 911 | num_buildings_l(myid) = num_buildings_l(myid) + 1 |
---|
| 912 | ! |
---|
| 913 | !-- Resize array with different local building ids |
---|
| 914 | ALLOCATE( build_ids_l_tmp(1:SIZE(build_ids_l)) ) |
---|
| 915 | build_ids_l_tmp = build_ids_l |
---|
| 916 | DEALLOCATE( build_ids_l ) |
---|
| 917 | ALLOCATE( build_ids_l(1:num_buildings_l(myid)) ) |
---|
| 918 | build_ids_l(1:num_buildings_l(myid)-1) = & |
---|
| 919 | build_ids_l_tmp(1:num_buildings_l(myid)-1) |
---|
| 920 | build_ids_l(num_buildings_l(myid)) = building_id_f%var(j,i) |
---|
| 921 | DEALLOCATE( build_ids_l_tmp ) |
---|
| 922 | ENDIF |
---|
| 923 | ! |
---|
| 924 | !-- First occuring building id on PE |
---|
| 925 | ELSE |
---|
| 926 | num_buildings_l(myid) = num_buildings_l(myid) + 1 |
---|
| 927 | build_ids_l(1) = building_id_f%var(j,i) |
---|
| 928 | ENDIF |
---|
| 929 | ENDIF |
---|
| 930 | ENDDO |
---|
| 931 | ENDDO |
---|
| 932 | ! |
---|
| 933 | !-- Determine number of different building ids for the entire domain |
---|
| 934 | #if defined( __parallel ) |
---|
| 935 | CALL MPI_ALLREDUCE( num_buildings_l, num_buildings, numprocs, & |
---|
| 936 | MPI_INTEGER, MPI_SUM, comm2d, ierr ) |
---|
| 937 | #else |
---|
| 938 | num_buildings = num_buildings_l |
---|
| 939 | #endif |
---|
| 940 | ! |
---|
| 941 | !-- Gather all buildings ids on each PEs. |
---|
| 942 | !-- First, allocate array encompassing all building ids in model domain. |
---|
| 943 | ALLOCATE( build_ids(1:SUM(num_buildings)) ) |
---|
| 944 | #if defined( __parallel ) |
---|
| 945 | ! |
---|
| 946 | !-- Allocate array for displacements. |
---|
| 947 | !-- As each PE may has a different number of buildings, so that |
---|
| 948 | !-- the block sizes send by each PE may not be equal. Hence, |
---|
| 949 | !-- information about the respective displacement is required, indicating |
---|
| 950 | !-- the respective adress where each MPI-task writes into the receive |
---|
| 951 | !-- buffer array |
---|
| 952 | ALLOCATE( displace_dum(0:numprocs-1) ) |
---|
| 953 | displace_dum(0) = 0 |
---|
| 954 | DO i = 1, numprocs-1 |
---|
| 955 | displace_dum(i) = displace_dum(i-1) + num_buildings(i-1) |
---|
| 956 | ENDDO |
---|
| 957 | |
---|
| 958 | CALL MPI_ALLGATHERV( build_ids_l(1:num_buildings_l(myid)), & |
---|
| 959 | num_buildings(myid), & |
---|
| 960 | MPI_INTEGER, & |
---|
| 961 | build_ids, & |
---|
| 962 | num_buildings, & |
---|
| 963 | displace_dum, & |
---|
| 964 | MPI_INTEGER, & |
---|
| 965 | comm2d, ierr ) |
---|
| 966 | |
---|
| 967 | DEALLOCATE( displace_dum ) |
---|
| 968 | |
---|
| 969 | #else |
---|
| 970 | build_ids = build_ids_l |
---|
| 971 | #endif |
---|
| 972 | |
---|
| 973 | ! |
---|
| 974 | !-- Note, in parallel mode building ids can occure mutliple times, as |
---|
| 975 | !-- each PE has send its own ids. Therefore, sort out building ids which |
---|
| 976 | !-- appear more than one time. |
---|
| 977 | num_build = 0 |
---|
| 978 | DO nr = 1, SIZE(build_ids) |
---|
| 979 | |
---|
| 980 | IF ( ALLOCATED(build_ids_final) ) THEN |
---|
| 981 | IF ( ANY( build_ids(nr) .EQ. build_ids_final ) ) THEN |
---|
| 982 | CYCLE |
---|
| 983 | ELSE |
---|
| 984 | num_build = num_build + 1 |
---|
| 985 | ! |
---|
| 986 | !-- Resize |
---|
| 987 | ALLOCATE( build_ids_final_tmp(1:num_build) ) |
---|
| 988 | build_ids_final_tmp(1:num_build-1) = build_ids_final(1:num_build-1) |
---|
| 989 | DEALLOCATE( build_ids_final ) |
---|
| 990 | ALLOCATE( build_ids_final(1:num_build) ) |
---|
| 991 | build_ids_final(1:num_build-1) = build_ids_final_tmp(1:num_build-1) |
---|
| 992 | build_ids_final(num_build) = build_ids(nr) |
---|
| 993 | DEALLOCATE( build_ids_final_tmp ) |
---|
| 994 | ENDIF |
---|
| 995 | ELSE |
---|
| 996 | num_build = num_build + 1 |
---|
| 997 | ALLOCATE( build_ids_final(1:num_build) ) |
---|
| 998 | build_ids_final(num_build) = build_ids(nr) |
---|
| 999 | ENDIF |
---|
| 1000 | ENDDO |
---|
| 1001 | |
---|
| 1002 | ! |
---|
| 1003 | !-- Finally, determine maximumum terrain height occupied by the |
---|
[2867] | 1004 | !-- respective building. |
---|
[2696] | 1005 | ALLOCATE( oro_max_l(1:SIZE(build_ids_final)) ) |
---|
| 1006 | ALLOCATE( oro_max(1:SIZE(build_ids_final)) ) |
---|
| 1007 | oro_max_l = 0.0_wp |
---|
| 1008 | |
---|
| 1009 | DO nr = 1, SIZE(build_ids_final) |
---|
| 1010 | oro_max_l(nr) = MAXVAL( & |
---|
| 1011 | MERGE( terrain_height_f%var, 0.0_wp, & |
---|
| 1012 | building_id_f%var(nys:nyn,nxl:nxr) .EQ. & |
---|
| 1013 | build_ids_final(nr) ) ) |
---|
| 1014 | ENDDO |
---|
| 1015 | |
---|
| 1016 | #if defined( __parallel ) |
---|
| 1017 | IF ( SIZE(build_ids_final) >= 1 ) THEN |
---|
| 1018 | CALL MPI_ALLREDUCE( oro_max_l, oro_max, SIZE( oro_max ), MPI_REAL, & |
---|
| 1019 | MPI_MAX, comm2d, ierr ) |
---|
| 1020 | ENDIF |
---|
| 1021 | #else |
---|
| 1022 | oro_max = oro_max_l |
---|
| 1023 | #endif |
---|
| 1024 | ! |
---|
[2867] | 1025 | !-- Map orography as well as buildings onto grid. |
---|
[2696] | 1026 | !-- In case of ocean simulations, add an offset. |
---|
| 1027 | ocean_offset = MERGE( zw(0), 0.0_wp, ocean ) |
---|
| 1028 | DO i = nxl, nxr |
---|
| 1029 | DO j = nys, nyn |
---|
[2867] | 1030 | topo_top_index = 0 |
---|
[2696] | 1031 | DO k = nzb, nzt |
---|
| 1032 | ! |
---|
| 1033 | !-- In a first step, if grid point is below or equal the given |
---|
| 1034 | !-- terrain height, grid point is flagged to be of type natural. |
---|
| 1035 | !-- Please note, in case there is also a building which is lower |
---|
| 1036 | !-- than the vertical grid spacing, initialization of surface |
---|
| 1037 | !-- attributes will not be correct as given surface information |
---|
| 1038 | !-- will not be in accordance to the classified grid points. |
---|
| 1039 | !-- Hence, in this case, de-flag the grid point and give it |
---|
| 1040 | !-- urban type instead. |
---|
[2747] | 1041 | IF ( zu(k) - ocean_offset <= terrain_height_f%var(j,i) ) THEN |
---|
[2696] | 1042 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
[2867] | 1043 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 1 ) |
---|
| 1044 | topo_top_index = topo_top_index + 1 |
---|
[2696] | 1045 | ENDIF |
---|
| 1046 | ! |
---|
| 1047 | !-- Set building grid points. Here, only consider 2D buildings. |
---|
| 1048 | !-- 3D buildings require separate treatment. |
---|
| 1049 | IF ( buildings_f%lod == 1 ) THEN |
---|
| 1050 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 1051 | ! |
---|
| 1052 | !-- Determine index where maximum terrain height occupied by |
---|
| 1053 | !-- the respective building height is stored. |
---|
| 1054 | nr = MINLOC( ABS( build_ids_final - & |
---|
| 1055 | building_id_f%var(j,i) ), DIM = 1 ) |
---|
| 1056 | |
---|
[2747] | 1057 | IF ( zu(k) - ocean_offset <= & |
---|
[2696] | 1058 | oro_max(nr) + buildings_f%var_2d(j,i) ) THEN |
---|
| 1059 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1060 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1061 | ! |
---|
| 1062 | !-- De-flag grid point of type natural. See comment above. |
---|
| 1063 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 1 ) |
---|
| 1064 | ENDIF |
---|
| 1065 | ENDIF |
---|
| 1066 | ENDIF |
---|
| 1067 | ENDDO |
---|
| 1068 | ! |
---|
| 1069 | !-- Map 3D buildings onto terrain height. |
---|
[2867] | 1070 | !-- In case of any slopes, map building on top of maximum terrain |
---|
| 1071 | !-- height covered by the building. In other words, extend |
---|
| 1072 | !-- building down to the respective local terrain-surface height. |
---|
[2696] | 1073 | IF ( buildings_f%lod == 2 ) THEN |
---|
| 1074 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 1075 | ! |
---|
[2867] | 1076 | !-- Determine index for maximum-terrain-height array. |
---|
| 1077 | nr = MINLOC( ABS( build_ids_final - & |
---|
| 1078 | building_id_f%var(j,i) ), DIM = 1 ) |
---|
| 1079 | ! |
---|
| 1080 | !-- Extend building down to the terrain surface. |
---|
| 1081 | k2 = topo_top_index |
---|
| 1082 | DO k = topo_top_index + 1, nzt + 1 |
---|
| 1083 | IF ( zu(k) - ocean_offset <= oro_max(nr) ) THEN |
---|
| 1084 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1085 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1086 | k2 = k2 + 1 |
---|
| 1087 | ENDIF |
---|
| 1088 | ENDDO |
---|
| 1089 | topo_top_index = k2 |
---|
| 1090 | ! |
---|
| 1091 | !-- Now, map building on top. |
---|
| 1092 | k2 = 0 |
---|
| 1093 | DO k = topo_top_index, nzt + 1 |
---|
[2796] | 1094 | IF ( k2 <= buildings_f%nz-1 ) THEN |
---|
[2696] | 1095 | IF ( buildings_f%var_3d(k2,j,i) == 1 ) THEN |
---|
| 1096 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
[2867] | 1097 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 1 ) |
---|
[2696] | 1098 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1099 | ENDIF |
---|
| 1100 | ENDIF |
---|
| 1101 | k2 = k2 + 1 |
---|
| 1102 | ENDDO |
---|
| 1103 | ENDIF |
---|
| 1104 | ENDIF |
---|
| 1105 | ENDDO |
---|
| 1106 | ENDDO |
---|
| 1107 | ! |
---|
| 1108 | !-- Deallocate temporary arrays required for processing and reading data |
---|
| 1109 | IF ( ALLOCATED( oro_max ) ) DEALLOCATE( oro_max ) |
---|
| 1110 | IF ( ALLOCATED( oro_max_l ) ) DEALLOCATE( oro_max_l ) |
---|
| 1111 | IF ( ALLOCATED( build_ids_final ) ) DEALLOCATE( build_ids_final ) |
---|
| 1112 | ! |
---|
| 1113 | !-- Topography input via ASCII format. |
---|
| 1114 | ELSE |
---|
| 1115 | ocean_offset = MERGE( zw(0), 0.0_wp, ocean ) |
---|
| 1116 | topo_3d = IBSET( topo_3d, 0 ) |
---|
| 1117 | topo_3d(nzb,:,:) = IBCLR( topo_3d(nzb,:,:), 0 ) |
---|
| 1118 | DO i = nxl, nxr |
---|
| 1119 | DO j = nys, nyn |
---|
| 1120 | DO k = nzb, nzt |
---|
[2747] | 1121 | IF ( zu(k) - ocean_offset <= buildings_f%var_2d(j,i) ) THEN |
---|
[2696] | 1122 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1123 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) !indicates terrain |
---|
| 1124 | ENDIF |
---|
| 1125 | ENDDO |
---|
| 1126 | ENDDO |
---|
| 1127 | ENDDO |
---|
| 1128 | ENDIF |
---|
| 1129 | |
---|
| 1130 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
| 1131 | |
---|
| 1132 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1133 | IF ( nys == 0 ) topo_3d(:,-1,:) = topo_3d(:,0,:) |
---|
| 1134 | IF ( nyn == ny ) topo_3d(:,ny+1,:) = topo_3d(:,ny,:) |
---|
| 1135 | ENDIF |
---|
| 1136 | |
---|
| 1137 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1138 | IF ( nxl == 0 ) topo_3d(:,:,-1) = topo_3d(:,:,0) |
---|
| 1139 | IF ( nxr == nx ) topo_3d(:,:,nx+1) = topo_3d(:,:,nx) |
---|
| 1140 | ENDIF |
---|
| 1141 | |
---|
| 1142 | END SUBROUTINE process_topography |
---|
| 1143 | |
---|
| 1144 | |
---|
| 1145 | ! Description: |
---|
| 1146 | ! -----------------------------------------------------------------------------! |
---|
| 1147 | !> Filter topography, i.e. fill holes resolved by only one grid point. |
---|
| 1148 | !> Such holes are suspected to lead to velocity blow-ups as continuity |
---|
| 1149 | !> equation on discrete grid cannot be fulfilled in such case. |
---|
| 1150 | !------------------------------------------------------------------------------! |
---|
| 1151 | SUBROUTINE filter_topography( topo_3d ) |
---|
| 1152 | |
---|
| 1153 | USE control_parameters, & |
---|
| 1154 | ONLY: bc_lr_cyc, bc_ns_cyc, message_string |
---|
| 1155 | |
---|
| 1156 | USE indices, & |
---|
| 1157 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nzb, nzt |
---|
| 1158 | |
---|
| 1159 | USE netcdf_data_input_mod, & |
---|
| 1160 | ONLY: building_id_f, building_type_f |
---|
| 1161 | |
---|
| 1162 | USE pegrid |
---|
| 1163 | |
---|
| 1164 | IMPLICIT NONE |
---|
| 1165 | |
---|
[2893] | 1166 | LOGICAL :: filled = .FALSE. !< flag indicating if holes were filled |
---|
| 1167 | |
---|
[2696] | 1168 | INTEGER(iwp) :: i !< running index along x-direction |
---|
| 1169 | INTEGER(iwp) :: j !< running index along y-direction |
---|
| 1170 | INTEGER(iwp) :: k !< running index along z-direction |
---|
| 1171 | INTEGER(iwp) :: num_hole !< number of holes (in topography) resolved by only one grid point |
---|
| 1172 | INTEGER(iwp) :: num_hole_l !< number of holes (in topography) resolved by only one grid point on local PE |
---|
| 1173 | INTEGER(iwp) :: num_wall !< number of surrounding vertical walls for a single grid point |
---|
| 1174 | |
---|
| 1175 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo_tmp !< temporary 3D-topography used to fill holes |
---|
| 1176 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo_3d !< 3D-topography array merging buildings and orography |
---|
| 1177 | ! |
---|
| 1178 | !-- Before checking for holes, set lateral boundary conditions for |
---|
| 1179 | !-- topography. After hole-filling, boundary conditions must be set again. |
---|
| 1180 | !-- Several iterations are performed, in order to fill holes which might |
---|
| 1181 | !-- emerge by the filling-algorithm itself. |
---|
| 1182 | ALLOCATE( topo_tmp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 1183 | topo_tmp = 0 |
---|
| 1184 | |
---|
| 1185 | num_hole = 99999 |
---|
| 1186 | DO WHILE ( num_hole > 0 ) |
---|
| 1187 | |
---|
| 1188 | num_hole = 0 |
---|
| 1189 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
| 1190 | |
---|
| 1191 | topo_tmp = topo_3d |
---|
| 1192 | ! |
---|
| 1193 | !-- In case of non-cyclic lateral boundaries, assume lateral boundary to be |
---|
| 1194 | !-- a solid wall. Thus, intermediate spaces of one grid point between |
---|
| 1195 | !-- boundary and some topographic structure will be filled. |
---|
| 1196 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1197 | IF ( nys == 0 ) topo_tmp(:,-1,:) = IBCLR( topo_tmp(:,0,:), 0 ) |
---|
| 1198 | IF ( nyn == ny ) topo_tmp(:,ny+1,:) = IBCLR( topo_tmp(:,ny,:), 0 ) |
---|
| 1199 | ENDIF |
---|
| 1200 | |
---|
| 1201 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1202 | IF ( nxl == 0 ) topo_tmp(:,:,-1) = IBCLR( topo_tmp(:,:,0), 0 ) |
---|
| 1203 | IF ( nxr == nx ) topo_tmp(:,:,nx+1) = IBCLR( topo_tmp(:,:,nx), 0 ) |
---|
| 1204 | ENDIF |
---|
| 1205 | |
---|
| 1206 | num_hole_l = 0 |
---|
| 1207 | DO i = nxl, nxr |
---|
| 1208 | DO j = nys, nyn |
---|
| 1209 | DO k = nzb+1, nzt |
---|
| 1210 | IF ( BTEST( topo_tmp(k,j,i), 0 ) ) THEN |
---|
| 1211 | num_wall = 0 |
---|
| 1212 | IF ( .NOT. BTEST( topo_tmp(k,j-1,i), 0 ) ) & |
---|
| 1213 | num_wall = num_wall + 1 |
---|
| 1214 | IF ( .NOT. BTEST( topo_tmp(k,j+1,i), 0 ) ) & |
---|
| 1215 | num_wall = num_wall + 1 |
---|
| 1216 | IF ( .NOT. BTEST( topo_tmp(k,j,i-1), 0 ) ) & |
---|
| 1217 | num_wall = num_wall + 1 |
---|
| 1218 | IF ( .NOT. BTEST( topo_tmp(k,j,i+1), 0 ) ) & |
---|
| 1219 | num_wall = num_wall + 1 |
---|
| 1220 | IF ( .NOT. BTEST( topo_tmp(k-1,j,i), 0 ) ) & |
---|
| 1221 | num_wall = num_wall + 1 |
---|
| 1222 | IF ( .NOT. BTEST( topo_tmp(k+1,j,i), 0 ) ) & |
---|
| 1223 | num_wall = num_wall + 1 |
---|
| 1224 | |
---|
| 1225 | IF ( num_wall >= 4 ) THEN |
---|
| 1226 | num_hole_l = num_hole_l + 1 |
---|
| 1227 | ! |
---|
| 1228 | !-- Clear flag 0 and set special flag ( bit 3) to indicate |
---|
| 1229 | !-- that new topography point is a result of filtering process. |
---|
| 1230 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1231 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 3 ) |
---|
| 1232 | ! |
---|
| 1233 | !-- If filled grid point is occupied by a building, classify |
---|
| 1234 | !-- it as building grid point. |
---|
| 1235 | IF ( building_type_f%from_file ) THEN |
---|
| 1236 | IF ( building_type_f%var(j,i) /= & |
---|
| 1237 | building_type_f%fill .OR. & |
---|
| 1238 | building_type_f%var(j+1,i) /= & |
---|
| 1239 | building_type_f%fill .OR. & |
---|
| 1240 | building_type_f%var(j-1,i) /= & |
---|
| 1241 | building_type_f%fill .OR. & |
---|
| 1242 | building_type_f%var(j,i+1) /= & |
---|
| 1243 | building_type_f%fill .OR. & |
---|
| 1244 | building_type_f%var(j,i-1) /= & |
---|
| 1245 | building_type_f%fill ) THEN |
---|
| 1246 | ! |
---|
| 1247 | !-- Set flag indicating building surfaces |
---|
| 1248 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1249 | ! |
---|
| 1250 | !-- Set building_type and ID at this position if not |
---|
| 1251 | !-- already set. This is required for proper |
---|
| 1252 | !-- initialization of urban-surface energy balance |
---|
| 1253 | !-- solver. |
---|
| 1254 | IF ( building_type_f%var(j,i) == & |
---|
| 1255 | building_type_f%fill ) THEN |
---|
| 1256 | |
---|
| 1257 | IF ( building_type_f%var(j+1,i) /= & |
---|
| 1258 | building_type_f%fill ) THEN |
---|
| 1259 | building_type_f%var(j,i) = & |
---|
| 1260 | building_type_f%var(j+1,i) |
---|
| 1261 | building_id_f%var(j,i) = & |
---|
| 1262 | building_id_f%var(j+1,i) |
---|
| 1263 | ELSEIF ( building_type_f%var(j-1,i) /= & |
---|
| 1264 | building_type_f%fill ) THEN |
---|
| 1265 | building_type_f%var(j,i) = & |
---|
| 1266 | building_type_f%var(j-1,i) |
---|
| 1267 | building_id_f%var(j,i) = & |
---|
| 1268 | building_id_f%var(j-1,i) |
---|
| 1269 | ELSEIF ( building_type_f%var(j,i+1) /= & |
---|
| 1270 | building_type_f%fill ) THEN |
---|
| 1271 | building_type_f%var(j,i) = & |
---|
| 1272 | building_type_f%var(j,i+1) |
---|
| 1273 | building_id_f%var(j,i) = & |
---|
| 1274 | building_id_f%var(j,i+1) |
---|
| 1275 | ELSEIF ( building_type_f%var(j,i-1) /= & |
---|
| 1276 | building_type_f%fill ) THEN |
---|
| 1277 | building_type_f%var(j,i) = & |
---|
| 1278 | building_type_f%var(j,i-1) |
---|
| 1279 | building_id_f%var(j,i) = & |
---|
| 1280 | building_id_f%var(j,i-1) |
---|
| 1281 | ENDIF |
---|
| 1282 | ENDIF |
---|
| 1283 | ENDIF |
---|
| 1284 | ENDIF |
---|
| 1285 | ! |
---|
| 1286 | !-- If filled grid point is already classified as building |
---|
| 1287 | !-- everything is fine, else classify this grid point as |
---|
| 1288 | !-- natural type grid point. This case, values for the |
---|
| 1289 | !-- surface type are already set. |
---|
| 1290 | IF ( .NOT. BTEST( topo_3d(k,j,i), 2 ) ) THEN |
---|
| 1291 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 1 ) |
---|
| 1292 | ENDIF |
---|
| 1293 | ENDIF |
---|
| 1294 | ENDIF |
---|
| 1295 | ENDDO |
---|
| 1296 | ENDDO |
---|
| 1297 | ENDDO |
---|
| 1298 | ! |
---|
| 1299 | !-- Count the total number of holes, required for informative message. |
---|
| 1300 | #if defined( __parallel ) |
---|
| 1301 | CALL MPI_ALLREDUCE( num_hole_l, num_hole, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 1302 | comm2d, ierr ) |
---|
| 1303 | #else |
---|
| 1304 | num_hole = num_hole_l |
---|
| 1305 | #endif |
---|
[2893] | 1306 | IF ( num_hole > 0 .AND. .NOT. filled ) filled = .TRUE. |
---|
[2696] | 1307 | |
---|
[2893] | 1308 | ENDDO |
---|
[2696] | 1309 | ! |
---|
[2893] | 1310 | !-- Create an informative message if any holes were filled. |
---|
| 1311 | IF ( filled ) THEN |
---|
| 1312 | WRITE( message_string, * ) 'Topography was filtered, i.e. holes ' // & |
---|
| 1313 | 'resolved by only one grid point ' // & |
---|
| 1314 | 'were filled during initialization.' |
---|
| 1315 | CALL message( 'init_grid', 'PA0430', 0, 0, 0, 6, 0 ) |
---|
| 1316 | ENDIF |
---|
[2696] | 1317 | |
---|
| 1318 | DEALLOCATE( topo_tmp ) |
---|
| 1319 | ! |
---|
| 1320 | !-- Finally, exchange topo_3d array again and if necessary set Neumann boundary |
---|
| 1321 | !-- condition in case of non-cyclic lateral boundaries. |
---|
| 1322 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
| 1323 | |
---|
| 1324 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1325 | IF ( nys == 0 ) topo_3d(:,-1,:) = topo_3d(:,0,:) |
---|
| 1326 | IF ( nyn == ny ) topo_3d(:,ny+1,:) = topo_3d(:,ny,:) |
---|
| 1327 | ENDIF |
---|
| 1328 | |
---|
| 1329 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1330 | IF ( nxl == 0 ) topo_3d(:,:,-1) = topo_3d(:,:,0) |
---|
| 1331 | IF ( nxr == nx ) topo_3d(:,:,nx+1) = topo_3d(:,:,nx) |
---|
| 1332 | ENDIF |
---|
| 1333 | |
---|
| 1334 | END SUBROUTINE filter_topography |
---|
| 1335 | |
---|
| 1336 | ! Description: |
---|
| 1337 | ! -----------------------------------------------------------------------------! |
---|
| 1338 | !> Pre-computation of grid-dependent and near-wall mixing length. |
---|
| 1339 | !> @todo: move subroutine to turbulence module developed by M1 (Tobi). |
---|
| 1340 | !------------------------------------------------------------------------------! |
---|
| 1341 | SUBROUTINE init_mixing_length |
---|
| 1342 | |
---|
| 1343 | USE arrays_3d, & |
---|
| 1344 | ONLY: dzw, l_grid, l_wall, zu, zw |
---|
| 1345 | |
---|
| 1346 | USE control_parameters, & |
---|
| 1347 | ONLY: message_string, wall_adjustment_factor |
---|
| 1348 | |
---|
| 1349 | USE grid_variables, & |
---|
| 1350 | ONLY: dx, dy |
---|
| 1351 | |
---|
| 1352 | USE indices, & |
---|
| 1353 | ONLY: nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzt, & |
---|
| 1354 | wall_flags_0 |
---|
| 1355 | |
---|
| 1356 | USE kinds |
---|
| 1357 | |
---|
| 1358 | IMPLICIT NONE |
---|
| 1359 | |
---|
| 1360 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1361 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1362 | INTEGER(iwp) :: k !< index variable along z |
---|
| 1363 | |
---|
| 1364 | ALLOCATE( l_grid(1:nzt) ) |
---|
| 1365 | ALLOCATE( l_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 1366 | ! |
---|
| 1367 | !-- Compute the grid-dependent mixing length. |
---|
| 1368 | DO k = 1, nzt |
---|
| 1369 | l_grid(k) = ( dx * dy * dzw(k) )**0.33333333333333_wp |
---|
| 1370 | ENDDO |
---|
| 1371 | ! |
---|
[1] | 1372 | !-- Initialize near-wall mixing length l_wall only in the vertical direction |
---|
[2696] | 1373 | !-- for the moment, multiplication with wall_adjustment_factor further below |
---|
[1] | 1374 | l_wall(nzb,:,:) = l_grid(1) |
---|
| 1375 | DO k = nzb+1, nzt |
---|
| 1376 | l_wall(k,:,:) = l_grid(k) |
---|
| 1377 | ENDDO |
---|
| 1378 | l_wall(nzt+1,:,:) = l_grid(nzt) |
---|
| 1379 | |
---|
| 1380 | DO k = 1, nzt |
---|
[1353] | 1381 | IF ( l_grid(k) > 1.5_wp * dx * wall_adjustment_factor .OR. & |
---|
| 1382 | l_grid(k) > 1.5_wp * dy * wall_adjustment_factor ) THEN |
---|
[254] | 1383 | WRITE( message_string, * ) 'grid anisotropy exceeds ', & |
---|
| 1384 | 'threshold given by only local', & |
---|
| 1385 | ' &horizontal reduction of near_wall ', & |
---|
| 1386 | 'mixing length l_wall', & |
---|
| 1387 | ' &starting from height level k = ', k, '.' |
---|
| 1388 | CALL message( 'init_grid', 'PA0202', 0, 1, 0, 6, 0 ) |
---|
[1] | 1389 | EXIT |
---|
| 1390 | ENDIF |
---|
| 1391 | ENDDO |
---|
| 1392 | ! |
---|
[2696] | 1393 | !-- In case of topography: limit near-wall mixing length l_wall further: |
---|
| 1394 | !-- Go through all points of the subdomain one by one and look for the closest |
---|
| 1395 | !-- surface. |
---|
| 1396 | !-- Is this correct in the ocean case? |
---|
| 1397 | DO i = nxl, nxr |
---|
| 1398 | DO j = nys, nyn |
---|
| 1399 | DO k = nzb+1, nzt |
---|
| 1400 | ! |
---|
| 1401 | !-- Check if current gridpoint belongs to the atmosphere |
---|
| 1402 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) THEN |
---|
| 1403 | ! |
---|
| 1404 | !-- Check for neighbouring grid-points. |
---|
| 1405 | !-- Vertical distance, down |
---|
| 1406 | IF ( .NOT. BTEST( wall_flags_0(k-1,j,i), 0 ) ) & |
---|
| 1407 | l_wall(k,j,i) = MIN( l_grid(k), zu(k) - zw(k-1) ) |
---|
| 1408 | ! |
---|
| 1409 | !-- Vertical distance, up |
---|
| 1410 | IF ( .NOT. BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1411 | l_wall(k,j,i) = MIN( l_grid(k), zw(k) - zu(k) ) |
---|
| 1412 | ! |
---|
| 1413 | !-- y-distance |
---|
| 1414 | IF ( .NOT. BTEST( wall_flags_0(k,j-1,i), 0 ) .OR. & |
---|
| 1415 | .NOT. BTEST( wall_flags_0(k,j+1,i), 0 ) ) & |
---|
| 1416 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), 0.5_wp * dy ) |
---|
| 1417 | ! |
---|
| 1418 | !-- x-distance |
---|
| 1419 | IF ( .NOT. BTEST( wall_flags_0(k,j,i-1), 0 ) .OR. & |
---|
| 1420 | .NOT. BTEST( wall_flags_0(k,j,i+1), 0 ) ) & |
---|
| 1421 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), 0.5_wp * dx ) |
---|
| 1422 | ! |
---|
| 1423 | !-- yz-distance (vertical edges, down) |
---|
| 1424 | IF ( .NOT. BTEST( wall_flags_0(k-1,j-1,i), 0 ) .OR. & |
---|
| 1425 | .NOT. BTEST( wall_flags_0(k-1,j+1,i), 0 ) ) & |
---|
| 1426 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1427 | SQRT( 0.25_wp * dy**2 + & |
---|
| 1428 | ( zu(k) - zw(k-1) )**2 ) ) |
---|
| 1429 | ! |
---|
| 1430 | !-- yz-distance (vertical edges, up) |
---|
| 1431 | IF ( .NOT. BTEST( wall_flags_0(k+1,j-1,i), 0 ) .OR. & |
---|
| 1432 | .NOT. BTEST( wall_flags_0(k+1,j+1,i), 0 ) ) & |
---|
| 1433 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1434 | SQRT( 0.25_wp * dy**2 + & |
---|
| 1435 | ( zw(k) - zu(k) )**2 ) ) |
---|
| 1436 | ! |
---|
| 1437 | !-- xz-distance (vertical edges, down) |
---|
| 1438 | IF ( .NOT. BTEST( wall_flags_0(k-1,j,i-1), 0 ) .OR. & |
---|
| 1439 | .NOT. BTEST( wall_flags_0(k-1,j,i+1), 0 ) ) & |
---|
| 1440 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1441 | SQRT( 0.25_wp * dx**2 + & |
---|
| 1442 | ( zu(k) - zw(k-1) )**2 ) ) |
---|
| 1443 | ! |
---|
| 1444 | !-- xz-distance (vertical edges, up) |
---|
| 1445 | IF ( .NOT. BTEST( wall_flags_0(k+1,j,i-1), 0 ) .OR. & |
---|
| 1446 | .NOT. BTEST( wall_flags_0(k+1,j,i+1), 0 ) ) & |
---|
| 1447 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1448 | SQRT( 0.25_wp * dx**2 + & |
---|
| 1449 | ( zw(k) - zu(k) )**2 ) ) |
---|
| 1450 | ! |
---|
| 1451 | !-- xy-distance (horizontal edges) |
---|
| 1452 | IF ( .NOT. BTEST( wall_flags_0(k,j-1,i-1), 0 ) .OR. & |
---|
| 1453 | .NOT. BTEST( wall_flags_0(k,j+1,i-1), 0 ) .OR. & |
---|
| 1454 | .NOT. BTEST( wall_flags_0(k,j-1,i+1), 0 ) .OR. & |
---|
| 1455 | .NOT. BTEST( wall_flags_0(k,j+1,i+1), 0 ) ) & |
---|
| 1456 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1457 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) ) ) |
---|
| 1458 | ! |
---|
| 1459 | !-- xyz distance (vertical and horizontal edges, down) |
---|
| 1460 | IF ( .NOT. BTEST( wall_flags_0(k-1,j-1,i-1), 0 ) .OR. & |
---|
| 1461 | .NOT. BTEST( wall_flags_0(k-1,j+1,i-1), 0 ) .OR. & |
---|
| 1462 | .NOT. BTEST( wall_flags_0(k-1,j-1,i+1), 0 ) .OR. & |
---|
| 1463 | .NOT. BTEST( wall_flags_0(k-1,j+1,i+1), 0 ) ) & |
---|
| 1464 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1465 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) & |
---|
| 1466 | + ( zu(k) - zw(k-1) )**2 ) ) |
---|
| 1467 | ! |
---|
| 1468 | !-- xyz distance (vertical and horizontal edges, up) |
---|
| 1469 | IF ( .NOT. BTEST( wall_flags_0(k+1,j-1,i-1), 0 ) .OR. & |
---|
| 1470 | .NOT. BTEST( wall_flags_0(k+1,j+1,i-1), 0 ) .OR. & |
---|
| 1471 | .NOT. BTEST( wall_flags_0(k+1,j-1,i+1), 0 ) .OR. & |
---|
| 1472 | .NOT. BTEST( wall_flags_0(k+1,j+1,i+1), 0 ) ) & |
---|
| 1473 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1474 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) & |
---|
| 1475 | + ( zw(k) - zu(k) )**2 ) ) |
---|
| 1476 | |
---|
| 1477 | ENDIF |
---|
| 1478 | ENDDO |
---|
| 1479 | ENDDO |
---|
| 1480 | ENDDO |
---|
| 1481 | ! |
---|
| 1482 | !-- Set lateral boundary conditions for l_wall |
---|
| 1483 | CALL exchange_horiz( l_wall, nbgp ) |
---|
| 1484 | |
---|
| 1485 | END SUBROUTINE init_mixing_length |
---|
| 1486 | |
---|
| 1487 | ! Description: |
---|
| 1488 | ! -----------------------------------------------------------------------------! |
---|
| 1489 | !> Reads topography information from file or sets generic topography. Moreover, |
---|
| 1490 | !> all topography-relevant topography arrays are initialized, and grid flags |
---|
| 1491 | !> are set. |
---|
| 1492 | !------------------------------------------------------------------------------! |
---|
| 1493 | SUBROUTINE init_topo( topo ) |
---|
| 1494 | |
---|
| 1495 | USE arrays_3d, & |
---|
| 1496 | ONLY: zw |
---|
| 1497 | |
---|
| 1498 | USE control_parameters, & |
---|
| 1499 | ONLY: bc_lr_cyc, bc_ns_cyc, building_height, building_length_x, & |
---|
| 1500 | building_length_y, building_wall_left, building_wall_south, & |
---|
| 1501 | canyon_height, canyon_wall_left, canyon_wall_south, & |
---|
| 1502 | canyon_width_x, canyon_width_y, dp_level_ind_b, dz, & |
---|
| 1503 | message_string, ocean, topography, topography_grid_convention, & |
---|
| 1504 | tunnel_height, tunnel_length, tunnel_width_x, tunnel_width_y, & |
---|
| 1505 | tunnel_wall_depth |
---|
| 1506 | |
---|
| 1507 | USE grid_variables, & |
---|
| 1508 | ONLY: dx, dy |
---|
| 1509 | |
---|
| 1510 | USE indices, & |
---|
| 1511 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nz, & |
---|
| 1512 | nzb, nzt |
---|
| 1513 | |
---|
| 1514 | USE kinds |
---|
| 1515 | |
---|
| 1516 | USE pegrid |
---|
| 1517 | |
---|
| 1518 | USE surface_mod, & |
---|
[2698] | 1519 | ONLY: get_topography_top_index, get_topography_top_index_ji |
---|
[2696] | 1520 | |
---|
| 1521 | IMPLICIT NONE |
---|
| 1522 | |
---|
| 1523 | INTEGER(iwp) :: bh !< temporary vertical index of building height |
---|
| 1524 | INTEGER(iwp) :: blx !< grid point number of building size along x |
---|
| 1525 | INTEGER(iwp) :: bly !< grid point number of building size along y |
---|
| 1526 | INTEGER(iwp) :: bxl !< index for left building wall |
---|
| 1527 | INTEGER(iwp) :: bxr !< index for right building wall |
---|
| 1528 | INTEGER(iwp) :: byn !< index for north building wall |
---|
| 1529 | INTEGER(iwp) :: bys !< index for south building wall |
---|
| 1530 | INTEGER(iwp) :: ch !< temporary vertical index for canyon height |
---|
| 1531 | INTEGER(iwp) :: cwx !< grid point number of canyon size along x |
---|
| 1532 | INTEGER(iwp) :: cwy !< grid point number of canyon size along y |
---|
| 1533 | INTEGER(iwp) :: cxl !< index for left canyon wall |
---|
| 1534 | INTEGER(iwp) :: cxr !< index for right canyon wall |
---|
| 1535 | INTEGER(iwp) :: cyn !< index for north canyon wall |
---|
| 1536 | INTEGER(iwp) :: cys !< index for south canyon wall |
---|
| 1537 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1538 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1539 | INTEGER(iwp) :: k !< index variable along z |
---|
| 1540 | INTEGER(iwp) :: hv_in !< heavyside function to model inner tunnel surface |
---|
| 1541 | INTEGER(iwp) :: hv_out !< heavyside function to model outer tunnel surface |
---|
| 1542 | INTEGER(iwp) :: txe_out !< end position of outer tunnel wall in x |
---|
| 1543 | INTEGER(iwp) :: txs_out !< start position of outer tunnel wall in x |
---|
| 1544 | INTEGER(iwp) :: tye_out !< end position of outer tunnel wall in y |
---|
| 1545 | INTEGER(iwp) :: tys_out !< start position of outer tunnel wall in y |
---|
| 1546 | INTEGER(iwp) :: txe_in !< end position of inner tunnel wall in x |
---|
| 1547 | INTEGER(iwp) :: txs_in !< start position of inner tunnel wall in x |
---|
| 1548 | INTEGER(iwp) :: tye_in !< end position of inner tunnel wall in y |
---|
| 1549 | INTEGER(iwp) :: tys_in !< start position of inner tunnel wall in y |
---|
| 1550 | INTEGER(iwp) :: td !< tunnel wall depth |
---|
| 1551 | INTEGER(iwp) :: th !< height of outer tunnel wall |
---|
| 1552 | |
---|
| 1553 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
---|
| 1554 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
| 1555 | |
---|
| 1556 | |
---|
| 1557 | ! |
---|
[1] | 1558 | !-- Set outer and inner index arrays for non-flat topography. |
---|
| 1559 | !-- Here consistency checks concerning domain size and periodicity are |
---|
| 1560 | !-- necessary. |
---|
| 1561 | !-- Within this SELECT CASE structure only nzb_local is initialized |
---|
| 1562 | !-- individually depending on the chosen topography type, all other index |
---|
| 1563 | !-- arrays are initialized further below. |
---|
| 1564 | SELECT CASE ( TRIM( topography ) ) |
---|
| 1565 | |
---|
| 1566 | CASE ( 'flat' ) |
---|
[2696] | 1567 | ! |
---|
[2232] | 1568 | !-- Initialilize 3D topography array, used later for initializing flags |
---|
[2696] | 1569 | topo(nzb+1:nzt+1,:,:) = IBSET( topo(nzb+1:nzt+1,:,:), 0 ) |
---|
[1] | 1570 | |
---|
| 1571 | CASE ( 'single_building' ) |
---|
| 1572 | ! |
---|
| 1573 | !-- Single rectangular building, by default centered in the middle of the |
---|
| 1574 | !-- total domain |
---|
| 1575 | blx = NINT( building_length_x / dx ) |
---|
| 1576 | bly = NINT( building_length_y / dy ) |
---|
[2232] | 1577 | bh = MINLOC( ABS( zw - building_height ), 1 ) - 1 |
---|
| 1578 | IF ( ABS( zw(bh) - building_height ) == & |
---|
[1675] | 1579 | ABS( zw(bh+1) - building_height ) ) bh = bh + 1 |
---|
[1322] | 1580 | IF ( building_wall_left == 9999999.9_wp ) THEN |
---|
[1] | 1581 | building_wall_left = ( nx + 1 - blx ) / 2 * dx |
---|
| 1582 | ENDIF |
---|
| 1583 | bxl = NINT( building_wall_left / dx ) |
---|
| 1584 | bxr = bxl + blx |
---|
| 1585 | |
---|
[1322] | 1586 | IF ( building_wall_south == 9999999.9_wp ) THEN |
---|
[2696] | 1587 | building_wall_south = ( ny + 1 - bly ) / 2 * dy |
---|
[1] | 1588 | ENDIF |
---|
| 1589 | bys = NINT( building_wall_south / dy ) |
---|
| 1590 | byn = bys + bly |
---|
| 1591 | |
---|
| 1592 | ! |
---|
| 1593 | !-- Building size has to meet some requirements |
---|
[2696] | 1594 | IF ( ( bxl < 1 ) .OR. ( bxr > nx-1 ) .OR. ( bxr < bxl+3 ) .OR. & |
---|
[1] | 1595 | ( bys < 1 ) .OR. ( byn > ny-1 ) .OR. ( byn < bys+3 ) ) THEN |
---|
[274] | 1596 | WRITE( message_string, * ) 'inconsistent building parameters:', & |
---|
| 1597 | '& bxl=', bxl, 'bxr=', bxr, 'bys=', bys, & |
---|
| 1598 | 'byn=', byn, 'nx=', nx, 'ny=', ny |
---|
[254] | 1599 | CALL message( 'init_grid', 'PA0203', 1, 2, 0, 6, 0 ) |
---|
[1] | 1600 | ENDIF |
---|
| 1601 | |
---|
[2696] | 1602 | ALLOCATE( nzb_local(nysg:nyng,nxlg:nxrg) ) |
---|
[2892] | 1603 | nzb_local = 0 |
---|
[1] | 1604 | ! |
---|
[1968] | 1605 | !-- Define the building. |
---|
| 1606 | IF ( bxl <= nxr .AND. bxr >= nxl .AND. & |
---|
[2696] | 1607 | bys <= nyn .AND. byn >= nys ) & |
---|
[1968] | 1608 | nzb_local(MAX(nys,bys):MIN(nyn,byn),MAX(nxl,bxl):MIN(nxr,bxr)) = bh |
---|
[2232] | 1609 | ! |
---|
[2696] | 1610 | !-- Set bit array on basis of nzb_local |
---|
| 1611 | DO i = nxl, nxr |
---|
| 1612 | DO j = nys, nyn |
---|
| 1613 | topo(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 1614 | IBSET( topo(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
[2232] | 1615 | ENDDO |
---|
| 1616 | ENDDO |
---|
[2696] | 1617 | |
---|
| 1618 | DEALLOCATE( nzb_local ) |
---|
[2232] | 1619 | |
---|
[2696] | 1620 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 1621 | ! |
---|
| 1622 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 1623 | !-- boundary conditions for topography. |
---|
| 1624 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1625 | IF ( nys == 0 ) THEN |
---|
| 1626 | DO i = 1, nbgp |
---|
| 1627 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 1628 | ENDDO |
---|
| 1629 | ENDIF |
---|
| 1630 | IF ( nyn == ny ) THEN |
---|
| 1631 | DO i = 1, nbgp |
---|
| 1632 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 1633 | ENDDO |
---|
| 1634 | ENDIF |
---|
| 1635 | ENDIF |
---|
| 1636 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1637 | IF ( nxl == 0 ) THEN |
---|
| 1638 | DO i = 1, nbgp |
---|
| 1639 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 1640 | ENDDO |
---|
| 1641 | ENDIF |
---|
| 1642 | IF ( nxr == nx ) THEN |
---|
| 1643 | DO i = 1, nbgp |
---|
| 1644 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 1645 | ENDDO |
---|
| 1646 | ENDIF |
---|
| 1647 | ENDIF |
---|
[2232] | 1648 | |
---|
[240] | 1649 | CASE ( 'single_street_canyon' ) |
---|
| 1650 | ! |
---|
| 1651 | !-- Single quasi-2D street canyon of infinite length in x or y direction. |
---|
| 1652 | !-- The canyon is centered in the other direction by default. |
---|
[1322] | 1653 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[240] | 1654 | ! |
---|
| 1655 | !-- Street canyon in y direction |
---|
| 1656 | cwx = NINT( canyon_width_x / dx ) |
---|
[1322] | 1657 | IF ( canyon_wall_left == 9999999.9_wp ) THEN |
---|
[240] | 1658 | canyon_wall_left = ( nx + 1 - cwx ) / 2 * dx |
---|
| 1659 | ENDIF |
---|
| 1660 | cxl = NINT( canyon_wall_left / dx ) |
---|
| 1661 | cxr = cxl + cwx |
---|
[1322] | 1662 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[240] | 1663 | ! |
---|
| 1664 | !-- Street canyon in x direction |
---|
| 1665 | cwy = NINT( canyon_width_y / dy ) |
---|
[1322] | 1666 | IF ( canyon_wall_south == 9999999.9_wp ) THEN |
---|
[240] | 1667 | canyon_wall_south = ( ny + 1 - cwy ) / 2 * dy |
---|
| 1668 | ENDIF |
---|
| 1669 | cys = NINT( canyon_wall_south / dy ) |
---|
| 1670 | cyn = cys + cwy |
---|
[2696] | 1671 | |
---|
[240] | 1672 | ELSE |
---|
[254] | 1673 | |
---|
| 1674 | message_string = 'no street canyon width given' |
---|
| 1675 | CALL message( 'init_grid', 'PA0204', 1, 2, 0, 6, 0 ) |
---|
| 1676 | |
---|
[240] | 1677 | ENDIF |
---|
| 1678 | |
---|
[2232] | 1679 | ch = MINLOC( ABS( zw - canyon_height ), 1 ) - 1 |
---|
| 1680 | IF ( ABS( zw(ch) - canyon_height ) == & |
---|
[1675] | 1681 | ABS( zw(ch+1) - canyon_height ) ) ch = ch + 1 |
---|
[240] | 1682 | dp_level_ind_b = ch |
---|
| 1683 | ! |
---|
| 1684 | !-- Street canyon size has to meet some requirements |
---|
[1322] | 1685 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1353] | 1686 | IF ( ( cxl < 1 ) .OR. ( cxr > nx-1 ) .OR. ( cwx < 3 ) .OR. & |
---|
[2696] | 1687 | ( ch < 3 ) ) THEN |
---|
[1353] | 1688 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 1689 | '&cxl=', cxl, 'cxr=', cxr, & |
---|
| 1690 | 'cwx=', cwx, & |
---|
[254] | 1691 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 1692 | CALL message( 'init_grid', 'PA0205', 1, 2, 0, 6, 0 ) |
---|
[240] | 1693 | ENDIF |
---|
[1322] | 1694 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1353] | 1695 | IF ( ( cys < 1 ) .OR. ( cyn > ny-1 ) .OR. ( cwy < 3 ) .OR. & |
---|
[2696] | 1696 | ( ch < 3 ) ) THEN |
---|
[1353] | 1697 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 1698 | '&cys=', cys, 'cyn=', cyn, & |
---|
| 1699 | 'cwy=', cwy, & |
---|
[254] | 1700 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 1701 | CALL message( 'init_grid', 'PA0206', 1, 2, 0, 6, 0 ) |
---|
[240] | 1702 | ENDIF |
---|
| 1703 | ENDIF |
---|
[1353] | 1704 | IF ( canyon_width_x /= 9999999.9_wp .AND. & |
---|
| 1705 | canyon_width_y /= 9999999.9_wp ) THEN |
---|
| 1706 | message_string = 'inconsistent canyon parameters:' // & |
---|
| 1707 | '&street canyon can only be oriented' // & |
---|
[254] | 1708 | '&either in x- or in y-direction' |
---|
| 1709 | CALL message( 'init_grid', 'PA0207', 1, 2, 0, 6, 0 ) |
---|
[240] | 1710 | ENDIF |
---|
| 1711 | |
---|
[2696] | 1712 | ALLOCATE( nzb_local(nysg:nyng,nxlg:nxrg) ) |
---|
[240] | 1713 | nzb_local = ch |
---|
[1322] | 1714 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1968] | 1715 | IF ( cxl <= nxr .AND. cxr >= nxl ) & |
---|
| 1716 | nzb_local(:,MAX(nxl,cxl+1):MIN(nxr,cxr-1)) = 0 |
---|
[1322] | 1717 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1968] | 1718 | IF ( cys <= nyn .AND. cyn >= nys ) & |
---|
| 1719 | nzb_local(MAX(nys,cys+1):MIN(nyn,cyn-1),:) = 0 |
---|
[240] | 1720 | ENDIF |
---|
[2232] | 1721 | ! |
---|
[2696] | 1722 | !-- Set bit array on basis of nzb_local |
---|
| 1723 | DO i = nxl, nxr |
---|
| 1724 | DO j = nys, nyn |
---|
| 1725 | topo(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 1726 | IBSET( topo(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
[2232] | 1727 | ENDDO |
---|
| 1728 | ENDDO |
---|
[2696] | 1729 | DEALLOCATE( nzb_local ) |
---|
[1994] | 1730 | |
---|
[2696] | 1731 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 1732 | ! |
---|
| 1733 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 1734 | !-- boundary conditions for topography. |
---|
| 1735 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1736 | IF ( nys == 0 ) THEN |
---|
| 1737 | DO i = 1, nbgp |
---|
| 1738 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 1739 | ENDDO |
---|
| 1740 | ENDIF |
---|
| 1741 | IF ( nyn == ny ) THEN |
---|
| 1742 | DO i = 1, nbgp |
---|
| 1743 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 1744 | ENDDO |
---|
| 1745 | ENDIF |
---|
| 1746 | ENDIF |
---|
| 1747 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1748 | IF ( nxl == 0 ) THEN |
---|
| 1749 | DO i = 1, nbgp |
---|
| 1750 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 1751 | ENDDO |
---|
| 1752 | ENDIF |
---|
| 1753 | IF ( nxr == nx ) THEN |
---|
| 1754 | DO i = 1, nbgp |
---|
| 1755 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 1756 | ENDDO |
---|
| 1757 | ENDIF |
---|
| 1758 | ENDIF |
---|
[2232] | 1759 | |
---|
| 1760 | CASE ( 'tunnel' ) |
---|
| 1761 | |
---|
| 1762 | ! |
---|
| 1763 | !-- Tunnel height |
---|
| 1764 | IF ( tunnel_height == 9999999.9_wp ) THEN |
---|
| 1765 | th = zw( INT( 0.2 * nz) ) |
---|
| 1766 | ELSE |
---|
| 1767 | th = tunnel_height |
---|
| 1768 | ENDIF |
---|
| 1769 | ! |
---|
| 1770 | !-- Tunnel-wall depth |
---|
[2696] | 1771 | IF ( tunnel_wall_depth == 9999999.9_wp ) THEN |
---|
[2232] | 1772 | td = MAX ( dx, dy, dz ) |
---|
| 1773 | ELSE |
---|
| 1774 | td = tunnel_wall_depth |
---|
| 1775 | ENDIF |
---|
| 1776 | ! |
---|
| 1777 | !-- Check for tunnel width |
---|
| 1778 | IF ( tunnel_width_x == 9999999.9_wp .AND. & |
---|
| 1779 | tunnel_width_y == 9999999.9_wp ) THEN |
---|
| 1780 | message_string = 'No tunnel width is given. ' |
---|
[2274] | 1781 | CALL message( 'init_grid', 'PA0280', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1782 | ENDIF |
---|
| 1783 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 1784 | tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 1785 | message_string = 'Inconsistent tunnel parameters:' // & |
---|
| 1786 | 'tunnel can only be oriented' // & |
---|
| 1787 | 'either in x- or in y-direction.' |
---|
[2274] | 1788 | CALL message( 'init_grid', 'PA0281', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1789 | ENDIF |
---|
| 1790 | ! |
---|
| 1791 | !-- Tunnel axis along y |
---|
| 1792 | IF ( tunnel_width_x /= 9999999.9_wp ) THEN |
---|
| 1793 | IF ( tunnel_width_x > ( nx + 1 ) * dx ) THEN |
---|
| 1794 | message_string = 'Tunnel width too large' |
---|
[2274] | 1795 | CALL message( 'init_grid', 'PA0282', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1796 | ENDIF |
---|
| 1797 | |
---|
| 1798 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_width_x * 0.5_wp ) |
---|
| 1799 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_width_x * 0.5_wp ) |
---|
| 1800 | txs_in = INT( ( nx + 1 ) * 0.5_wp * dx - & |
---|
| 1801 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
| 1802 | txe_in = INT( ( nx + 1 ) * 0.5_wp * dx + & |
---|
[2696] | 1803 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
[2232] | 1804 | |
---|
| 1805 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_length * 0.5_wp ) |
---|
| 1806 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_length * 0.5_wp ) |
---|
| 1807 | tys_in = tys_out |
---|
| 1808 | tye_in = tye_out |
---|
| 1809 | ENDIF |
---|
[2696] | 1810 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 1811 | tunnel_width_x - 2.0_wp * td <= 2.0_wp * dx ) & |
---|
| 1812 | THEN |
---|
[2232] | 1813 | message_string = 'Tunnel width too small' |
---|
[2274] | 1814 | CALL message( 'init_grid', 'PA0175', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1815 | ENDIF |
---|
| 1816 | IF ( tunnel_width_y /= 9999999.9_wp .AND. & |
---|
[2696] | 1817 | tunnel_width_y - 2.0_wp * td <= 2.0_wp * dy ) & |
---|
| 1818 | THEN |
---|
[2232] | 1819 | message_string = 'Tunnel width too small' |
---|
[2274] | 1820 | CALL message( 'init_grid', 'PA0455', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1821 | ENDIF |
---|
| 1822 | ! |
---|
| 1823 | !-- Tunnel axis along x |
---|
| 1824 | IF ( tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 1825 | IF ( tunnel_width_y > ( ny + 1 ) * dy ) THEN |
---|
| 1826 | message_string = 'Tunnel width too large' |
---|
[2274] | 1827 | CALL message( 'init_grid', 'PA0456', 1, 2, 0, 6, 0 ) |
---|
[2232] | 1828 | ENDIF |
---|
| 1829 | |
---|
| 1830 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_length * 0.5_wp ) |
---|
| 1831 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_length * 0.5_wp ) |
---|
| 1832 | txs_in = txs_out |
---|
| 1833 | txe_in = txe_out |
---|
| 1834 | |
---|
| 1835 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_width_y * 0.5_wp ) |
---|
| 1836 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_width_y * 0.5_wp ) |
---|
| 1837 | tys_in = INT( ( ny + 1 ) * 0.5_wp * dy - & |
---|
[2696] | 1838 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
[2232] | 1839 | tye_in = INT( ( ny + 1 ) * 0.5_wp * dy + & |
---|
| 1840 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
| 1841 | ENDIF |
---|
| 1842 | |
---|
[2696] | 1843 | topo = 0 |
---|
[2232] | 1844 | DO i = nxl, nxr |
---|
| 1845 | DO j = nys, nyn |
---|
| 1846 | ! |
---|
| 1847 | !-- Use heaviside function to model outer tunnel surface |
---|
| 1848 | hv_out = th * 0.5_wp * & |
---|
| 1849 | ( ( SIGN( 1.0_wp, i * dx - txs_out ) + 1.0_wp ) & |
---|
| 1850 | - ( SIGN( 1.0_wp, i * dx - txe_out ) + 1.0_wp ) ) |
---|
| 1851 | |
---|
| 1852 | hv_out = hv_out * 0.5_wp * & |
---|
| 1853 | ( ( SIGN( 1.0_wp, j * dy - tys_out ) + 1.0_wp ) & |
---|
| 1854 | - ( SIGN( 1.0_wp, j * dy - tye_out ) + 1.0_wp ) ) |
---|
[2696] | 1855 | ! |
---|
[2232] | 1856 | !-- Use heaviside function to model inner tunnel surface |
---|
| 1857 | hv_in = ( th - td ) * 0.5_wp * & |
---|
| 1858 | ( ( SIGN( 1.0_wp, i * dx - txs_in ) + 1.0_wp ) & |
---|
| 1859 | - ( SIGN( 1.0_wp, i * dx - txe_in ) + 1.0_wp ) ) |
---|
| 1860 | |
---|
| 1861 | hv_in = hv_in * 0.5_wp * & |
---|
| 1862 | ( ( SIGN( 1.0_wp, j * dy - tys_in ) + 1.0_wp ) & |
---|
| 1863 | - ( SIGN( 1.0_wp, j * dy - tye_in ) + 1.0_wp ) ) |
---|
| 1864 | ! |
---|
| 1865 | !-- Set flags at x-y-positions without any tunnel surface |
---|
| 1866 | IF ( hv_out - hv_in == 0.0_wp ) THEN |
---|
[2696] | 1867 | topo(nzb+1:nzt+1,j,i) = IBSET( topo(nzb+1:nzt+1,j,i), 0 ) |
---|
[2232] | 1868 | ! |
---|
| 1869 | !-- Set flags at x-y-positions with tunnel surfaces |
---|
| 1870 | ELSE |
---|
| 1871 | DO k = nzb + 1, nzt + 1 |
---|
| 1872 | ! |
---|
| 1873 | !-- Inner tunnel |
---|
| 1874 | IF ( hv_out - hv_in == th ) THEN |
---|
| 1875 | IF ( zw(k) <= hv_out ) THEN |
---|
[2696] | 1876 | topo(k,j,i) = IBCLR( topo(k,j,i), 0 ) |
---|
[2232] | 1877 | ELSE |
---|
[2696] | 1878 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 1879 | ENDIF |
---|
| 1880 | ENDIF |
---|
| 1881 | ! |
---|
| 1882 | !-- Lateral tunnel walls |
---|
| 1883 | IF ( hv_out - hv_in == td ) THEN |
---|
| 1884 | IF ( zw(k) <= hv_in ) THEN |
---|
[2696] | 1885 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 1886 | ELSEIF ( zw(k) > hv_in .AND. zw(k) <= hv_out ) THEN |
---|
[2696] | 1887 | topo(k,j,i) = IBCLR( topo(k,j,i), 0 ) |
---|
[2232] | 1888 | ELSEIF ( zw(k) > hv_out ) THEN |
---|
[2696] | 1889 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 1890 | ENDIF |
---|
| 1891 | ENDIF |
---|
| 1892 | ENDDO |
---|
| 1893 | ENDIF |
---|
| 1894 | ENDDO |
---|
| 1895 | ENDDO |
---|
| 1896 | |
---|
[2696] | 1897 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 1898 | ! |
---|
| 1899 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 1900 | !-- boundary conditions for topography. |
---|
| 1901 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1902 | IF ( nys == 0 ) THEN |
---|
| 1903 | DO i = 1, nbgp |
---|
| 1904 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 1905 | ENDDO |
---|
| 1906 | ENDIF |
---|
| 1907 | IF ( nyn == ny ) THEN |
---|
| 1908 | DO i = 1, nbgp |
---|
| 1909 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 1910 | ENDDO |
---|
| 1911 | ENDIF |
---|
| 1912 | ENDIF |
---|
| 1913 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1914 | IF ( nxl == 0 ) THEN |
---|
| 1915 | DO i = 1, nbgp |
---|
| 1916 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 1917 | ENDDO |
---|
| 1918 | ENDIF |
---|
| 1919 | IF ( nxr == nx ) THEN |
---|
| 1920 | DO i = 1, nbgp |
---|
| 1921 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 1922 | ENDDO |
---|
| 1923 | ENDIF |
---|
| 1924 | ENDIF |
---|
[2232] | 1925 | |
---|
[1] | 1926 | CASE ( 'read_from_file' ) |
---|
| 1927 | ! |
---|
[2696] | 1928 | !-- Note, topography information have been already read. |
---|
| 1929 | !-- If required, further process topography, i.e. reference buildings on |
---|
| 1930 | !-- top of orography and set temporary 3D topography array, which is |
---|
| 1931 | !-- used later to set grid flags. Calling of this rouinte is also |
---|
| 1932 | !-- required in case of ASCII input, even though no distinction between |
---|
| 1933 | !-- terrain- and building height is made in this case. |
---|
| 1934 | CALL process_topography( topo ) |
---|
[1968] | 1935 | ! |
---|
[2696] | 1936 | !-- Filter holes resolved by only one grid-point |
---|
| 1937 | CALL filter_topography( topo ) |
---|
[1968] | 1938 | ! |
---|
[2696] | 1939 | !-- Exchange ghost-points, as well as add cyclic or Neumann boundary |
---|
| 1940 | !-- conditions. |
---|
| 1941 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 1942 | ! |
---|
[2696] | 1943 | !-- Set lateral boundary conditions for topography on all ghost layers |
---|
[1968] | 1944 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2550] | 1945 | IF ( nys == 0 ) THEN |
---|
[2696] | 1946 | DO i = 1, nbgp |
---|
| 1947 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 1948 | ENDDO |
---|
[2550] | 1949 | ENDIF |
---|
[2696] | 1950 | IF ( nyn == ny ) THEN |
---|
| 1951 | DO i = 1, nbgp |
---|
| 1952 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 1953 | ENDDO |
---|
| 1954 | ENDIF |
---|
[1942] | 1955 | ENDIF |
---|
[1910] | 1956 | |
---|
[1968] | 1957 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[2550] | 1958 | IF ( nxl == 0 ) THEN |
---|
[2696] | 1959 | DO i = 1, nbgp |
---|
| 1960 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
[2232] | 1961 | ENDDO |
---|
[2696] | 1962 | ENDIF |
---|
| 1963 | IF ( nxr == nx ) THEN |
---|
| 1964 | DO i = 1, nbgp |
---|
| 1965 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 1966 | ENDDO |
---|
| 1967 | ENDIF |
---|
[2232] | 1968 | ENDIF |
---|
| 1969 | |
---|
[667] | 1970 | |
---|
[1] | 1971 | CASE DEFAULT |
---|
[2696] | 1972 | ! |
---|
[1] | 1973 | !-- The DEFAULT case is reached either if the parameter topography |
---|
[217] | 1974 | !-- contains a wrong character string or if the user has defined a special |
---|
[1] | 1975 | !-- case in the user interface. There, the subroutine user_init_grid |
---|
| 1976 | !-- checks which of these two conditions applies. |
---|
[2696] | 1977 | CALL user_init_grid( topo ) |
---|
| 1978 | CALL filter_topography( topo ) |
---|
[1] | 1979 | |
---|
| 1980 | END SELECT |
---|
| 1981 | ! |
---|
| 1982 | !-- Consistency checks and index array initialization are only required for |
---|
[2696] | 1983 | !-- non-flat topography. |
---|
[1] | 1984 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 1985 | ! |
---|
[2232] | 1986 | !-- In case of non-flat topography, check whether the convention how to |
---|
| 1987 | !-- define the topography grid has been set correctly, or whether the default |
---|
| 1988 | !-- is applicable. If this is not possible, abort. |
---|
| 1989 | IF ( TRIM( topography_grid_convention ) == ' ' ) THEN |
---|
| 1990 | IF ( TRIM( topography ) /= 'single_building' .AND. & |
---|
| 1991 | TRIM( topography ) /= 'single_street_canyon' .AND. & |
---|
| 1992 | TRIM( topography ) /= 'tunnel' .AND. & |
---|
| 1993 | TRIM( topography ) /= 'read_from_file') THEN |
---|
| 1994 | !-- The default value is not applicable here, because it is only valid |
---|
| 1995 | !-- for the two standard cases 'single_building' and 'read_from_file' |
---|
| 1996 | !-- defined in init_grid. |
---|
| 1997 | WRITE( message_string, * ) & |
---|
[2696] | 1998 | 'The value for "topography_grid_convention" ', & |
---|
| 1999 | 'is not set. Its default value is & only valid for ', & |
---|
| 2000 | '"topography" = ''single_building'', ', & |
---|
| 2001 | '''single_street_canyon'' & or ''read_from_file''.', & |
---|
| 2002 | ' & Choose ''cell_edge'' or ''cell_center''.' |
---|
[2232] | 2003 | CALL message( 'init_grid', 'PA0239', 1, 2, 0, 6, 0 ) |
---|
| 2004 | ELSE |
---|
| 2005 | !-- The default value is applicable here. |
---|
| 2006 | !-- Set convention according to topography. |
---|
| 2007 | IF ( TRIM( topography ) == 'single_building' .OR. & |
---|
| 2008 | TRIM( topography ) == 'single_street_canyon' ) THEN |
---|
| 2009 | topography_grid_convention = 'cell_edge' |
---|
| 2010 | ELSEIF ( TRIM( topography ) == 'read_from_file' .OR. & |
---|
| 2011 | TRIM( topography ) == 'tunnel') THEN |
---|
| 2012 | topography_grid_convention = 'cell_center' |
---|
| 2013 | ENDIF |
---|
| 2014 | ENDIF |
---|
| 2015 | ELSEIF ( TRIM( topography_grid_convention ) /= 'cell_edge' .AND. & |
---|
| 2016 | TRIM( topography_grid_convention ) /= 'cell_center' ) THEN |
---|
| 2017 | WRITE( message_string, * ) & |
---|
[2696] | 2018 | 'The value for "topography_grid_convention" is ', & |
---|
| 2019 | 'not recognized. & Choose ''cell_edge'' or ''cell_center''.' |
---|
[2232] | 2020 | CALL message( 'init_grid', 'PA0240', 1, 2, 0, 6, 0 ) |
---|
| 2021 | ENDIF |
---|
[1] | 2022 | |
---|
[2169] | 2023 | |
---|
[217] | 2024 | IF ( topography_grid_convention == 'cell_edge' ) THEN |
---|
[134] | 2025 | ! |
---|
[217] | 2026 | !-- The array nzb_local as defined using the 'cell_edge' convention |
---|
| 2027 | !-- describes the actual total size of topography which is defined at the |
---|
| 2028 | !-- cell edges where u=0 on the topography walls in x-direction and v=0 |
---|
| 2029 | !-- on the topography walls in y-direction. However, PALM uses individual |
---|
| 2030 | !-- arrays nzb_u|v|w|s_inner|outer that are based on nzb_s_inner. |
---|
| 2031 | !-- Therefore, the extent of topography in nzb_local is now reduced by |
---|
| 2032 | !-- 1dx at the E topography walls and by 1dy at the N topography walls |
---|
[1968] | 2033 | !-- to form the basis for nzb_s_inner. |
---|
| 2034 | !-- Note, the reverse memory access (i-j instead of j-i) is absolutely |
---|
| 2035 | !-- required at this point. |
---|
| 2036 | DO j = nys+1, nyn+1 |
---|
| 2037 | DO i = nxl-1, nxr |
---|
[2232] | 2038 | DO k = nzb, nzt+1 |
---|
[2696] | 2039 | IF ( BTEST( topo(k,j,i), 0 ) .OR. & |
---|
| 2040 | BTEST( topo(k,j,i+1), 0 ) ) & |
---|
| 2041 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2042 | ENDDO |
---|
| 2043 | ENDDO |
---|
| 2044 | ENDDO |
---|
[2696] | 2045 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2046 | |
---|
| 2047 | DO i = nxl, nxr+1 |
---|
| 2048 | DO j = nys-1, nyn |
---|
| 2049 | DO k = nzb, nzt+1 |
---|
[2696] | 2050 | IF ( BTEST( topo(k,j,i), 0 ) .OR. & |
---|
| 2051 | BTEST( topo(k,j+1,i), 0 ) ) & |
---|
| 2052 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2053 | ENDDO |
---|
| 2054 | ENDDO |
---|
| 2055 | ENDDO |
---|
[2696] | 2056 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2057 | |
---|
[217] | 2058 | ENDIF |
---|
[2696] | 2059 | ENDIF |
---|
[2232] | 2060 | |
---|
[1] | 2061 | |
---|
[2696] | 2062 | END SUBROUTINE init_topo |
---|
[1] | 2063 | |
---|
[2696] | 2064 | SUBROUTINE set_topo_flags(topo) |
---|
[1] | 2065 | |
---|
[2696] | 2066 | USE control_parameters, & |
---|
| 2067 | ONLY: bc_lr_cyc, bc_ns_cyc, constant_flux_layer, land_surface, & |
---|
| 2068 | use_surface_fluxes, use_top_fluxes, urban_surface |
---|
[1] | 2069 | |
---|
[2696] | 2070 | USE indices, & |
---|
| 2071 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nz, & |
---|
| 2072 | nzb, nzt, wall_flags_0 |
---|
[1] | 2073 | |
---|
[2696] | 2074 | USE kinds |
---|
[1] | 2075 | |
---|
[2696] | 2076 | IMPLICIT NONE |
---|
[1804] | 2077 | |
---|
[2696] | 2078 | INTEGER(iwp) :: i !< index variable along x |
---|
| 2079 | INTEGER(iwp) :: j !< index variable along y |
---|
| 2080 | INTEGER(iwp) :: k !< index variable along z |
---|
[1] | 2081 | |
---|
[2696] | 2082 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
[2232] | 2083 | |
---|
[2696] | 2084 | ALLOCATE( wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 2085 | wall_flags_0 = 0 |
---|
[2232] | 2086 | ! |
---|
[2696] | 2087 | !-- Set-up topography flags. First, set flags only for s, u, v and w-grid. |
---|
| 2088 | !-- Further special flags will be set in following loops. |
---|
[2232] | 2089 | DO i = nxl, nxr |
---|
| 2090 | DO j = nys, nyn |
---|
| 2091 | DO k = nzb, nzt+1 |
---|
| 2092 | ! |
---|
| 2093 | !-- scalar grid |
---|
[2696] | 2094 | IF ( BTEST( topo(k,j,i), 0 ) ) & |
---|
[2232] | 2095 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 0 ) |
---|
| 2096 | ! |
---|
[2696] | 2097 | !-- u grid |
---|
| 2098 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2099 | BTEST( topo(k,j,i-1), 0 ) ) & |
---|
| 2100 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 1 ) |
---|
| 2101 | ! |
---|
[2232] | 2102 | !-- v grid |
---|
[2696] | 2103 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2104 | BTEST( topo(k,j-1,i), 0 ) ) & |
---|
| 2105 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 2 ) |
---|
| 2106 | |
---|
[2232] | 2107 | ENDDO |
---|
[1] | 2108 | |
---|
[2232] | 2109 | DO k = nzb, nzt |
---|
[1] | 2110 | ! |
---|
[2232] | 2111 | !-- w grid |
---|
[2696] | 2112 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2113 | BTEST( topo(k+1,j,i), 0 ) ) & |
---|
[2232] | 2114 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 3 ) |
---|
| 2115 | ENDDO |
---|
| 2116 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 3 ) |
---|
| 2117 | |
---|
| 2118 | ENDDO |
---|
| 2119 | ENDDO |
---|
[2696] | 2120 | |
---|
[2867] | 2121 | CALL exchange_horiz_int( wall_flags_0, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[1] | 2122 | ! |
---|
[2696] | 2123 | !-- Set outer array for scalars to mask near-surface grid points in |
---|
| 2124 | !-- production_e |
---|
| 2125 | DO i = nxl, nxr |
---|
| 2126 | DO j = nys, nyn |
---|
[2232] | 2127 | DO k = nzb, nzt+1 |
---|
[2696] | 2128 | IF ( BTEST( wall_flags_0(k,j-1,i), 0 ) .AND. & |
---|
| 2129 | BTEST( wall_flags_0(k,j+1,i), 0 ) .AND. & |
---|
| 2130 | BTEST( wall_flags_0(k,j,i-1), 0 ) .AND. & |
---|
| 2131 | BTEST( wall_flags_0(k,j-1,i-1), 0 ) .AND. & |
---|
| 2132 | BTEST( wall_flags_0(k,j+1,i-1), 0 ) .AND. & |
---|
| 2133 | BTEST( wall_flags_0(k,j-1,i+1), 0 ) .AND. & |
---|
| 2134 | BTEST( wall_flags_0(k,j+1,i+1), 0 ) ) & |
---|
| 2135 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 24 ) |
---|
[2232] | 2136 | ENDDO |
---|
| 2137 | ENDDO |
---|
| 2138 | ENDDO |
---|
[1] | 2139 | ! |
---|
[2232] | 2140 | !-- Set further special flags |
---|
| 2141 | DO i = nxl, nxr |
---|
| 2142 | DO j = nys, nyn |
---|
| 2143 | DO k = nzb, nzt+1 |
---|
[1] | 2144 | ! |
---|
[2232] | 2145 | !-- scalar grid, former nzb_diff_s_inner. |
---|
| 2146 | !-- Note, use this flag also to mask topography in diffusion_u and |
---|
| 2147 | !-- diffusion_v along the vertical direction. In case of |
---|
| 2148 | !-- use_surface_fluxes, fluxes are calculated via MOST, else, simple |
---|
| 2149 | !-- gradient approach is applied. Please note, in case of u- and v- |
---|
| 2150 | !-- diffuison, a small error is made at edges (on the east side for u, |
---|
| 2151 | !-- at the north side for v), since topography on scalar grid point |
---|
| 2152 | !-- is used instead of topography on u/v-grid. As number of topography grid |
---|
| 2153 | !-- points on uv-grid is different than s-grid, different number of |
---|
| 2154 | !-- surface elements would be required. In order to avoid this, |
---|
| 2155 | !-- treat edges (u(k,j,i+1)) simply by a gradient approach, i.e. these |
---|
| 2156 | !-- points are not masked within diffusion_u. Tests had shown that the |
---|
| 2157 | !-- effect on the flow is negligible. |
---|
| 2158 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2159 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2160 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 2161 | ELSE |
---|
| 2162 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 2163 | ENDIF |
---|
[1] | 2164 | |
---|
[2232] | 2165 | ENDDO |
---|
| 2166 | ! |
---|
| 2167 | !-- Special flag to control vertical diffusion at model top - former |
---|
| 2168 | !-- nzt_diff |
---|
| 2169 | wall_flags_0(:,j,i) = IBSET( wall_flags_0(:,j,i), 9 ) |
---|
| 2170 | IF ( use_top_fluxes ) & |
---|
[2478] | 2171 | wall_flags_0(nzt+1,j,i) = IBCLR( wall_flags_0(nzt+1,j,i), 9 ) |
---|
[1] | 2172 | |
---|
[2696] | 2173 | |
---|
[2232] | 2174 | DO k = nzb+1, nzt |
---|
| 2175 | ! |
---|
| 2176 | !-- Special flag on u grid, former nzb_u_inner + 1, required |
---|
| 2177 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 2178 | !-- topography, as well as initialize u with zero one grid point outside |
---|
| 2179 | !-- of topography. |
---|
| 2180 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 2181 | BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 2182 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 2183 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 20 ) |
---|
| 2184 | ! |
---|
| 2185 | !-- Special flag on v grid, former nzb_v_inner + 1, required |
---|
| 2186 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 2187 | !-- topography, as well as initialize v with zero one grid point outside |
---|
| 2188 | !-- of topography. |
---|
| 2189 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 2190 | BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 2191 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 2192 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 21 ) |
---|
| 2193 | ! |
---|
| 2194 | !-- Special flag on scalar grid, former nzb_s_inner+1. Used for |
---|
| 2195 | !-- lpm_sgs_tke |
---|
| 2196 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2197 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2198 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2199 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 25 ) |
---|
| 2200 | ! |
---|
| 2201 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 2202 | !-- in production_e |
---|
| 2203 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2204 | IF ( BTEST( wall_flags_0(k,j,i), 24 ) .AND. & |
---|
| 2205 | BTEST( wall_flags_0(k-1,j,i), 24 ) .AND. & |
---|
| 2206 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2207 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
| 2208 | ELSE |
---|
| 2209 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2210 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
[1] | 2211 | ENDIF |
---|
[2232] | 2212 | ! |
---|
| 2213 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 2214 | !-- in production_e |
---|
| 2215 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2216 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2217 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2218 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2219 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 2220 | ELSE |
---|
| 2221 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2222 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 2223 | ENDIF |
---|
| 2224 | ENDDO |
---|
| 2225 | ! |
---|
| 2226 | !-- Flags indicating downward facing walls |
---|
| 2227 | DO k = nzb+1, nzt |
---|
| 2228 | ! |
---|
| 2229 | !-- Scalar grid |
---|
| 2230 | IF ( BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2231 | .NOT. BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
[2696] | 2232 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 13 ) |
---|
[2232] | 2233 | ! |
---|
| 2234 | !-- Downward facing wall on u grid |
---|
| 2235 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 2236 | .NOT. BTEST( wall_flags_0(k,j,i), 1 ) ) & |
---|
| 2237 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 15 ) |
---|
| 2238 | ! |
---|
| 2239 | !-- Downward facing wall on v grid |
---|
| 2240 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 2241 | .NOT. BTEST( wall_flags_0(k,j,i), 2 ) ) & |
---|
| 2242 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 17 ) |
---|
| 2243 | ! |
---|
| 2244 | !-- Downward facing wall on w grid |
---|
| 2245 | IF ( BTEST( wall_flags_0(k-1,j,i), 3 ) .AND. & |
---|
| 2246 | .NOT. BTEST( wall_flags_0(k,j,i), 3 ) ) & |
---|
| 2247 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 19 ) |
---|
| 2248 | ENDDO |
---|
| 2249 | ! |
---|
| 2250 | !-- Flags indicating upward facing walls |
---|
| 2251 | DO k = nzb, nzt |
---|
| 2252 | ! |
---|
| 2253 | !-- Upward facing wall on scalar grid |
---|
| 2254 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2255 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2256 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 12 ) |
---|
| 2257 | ! |
---|
| 2258 | !-- Upward facing wall on u grid |
---|
| 2259 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 2260 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 2261 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 14 ) |
---|
[1] | 2262 | |
---|
[2696] | 2263 | ! |
---|
[2232] | 2264 | !-- Upward facing wall on v grid |
---|
| 2265 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 2266 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 2267 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 16 ) |
---|
[2696] | 2268 | |
---|
[2232] | 2269 | ! |
---|
| 2270 | !-- Upward facing wall on w grid |
---|
| 2271 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 3 ) .AND. & |
---|
| 2272 | BTEST( wall_flags_0(k+1,j,i), 3 ) ) & |
---|
| 2273 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 18 ) |
---|
| 2274 | ! |
---|
| 2275 | !-- Special flag on scalar grid, former nzb_s_inner |
---|
| 2276 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .OR. & |
---|
| 2277 | BTEST( wall_flags_0(k,j,i), 12 ) .OR. & |
---|
| 2278 | BTEST( wall_flags_0(k,j,i), 13 ) ) & |
---|
[2696] | 2279 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 22 ) |
---|
[2232] | 2280 | ! |
---|
| 2281 | !-- Special flag on scalar grid, nzb_diff_s_inner - 1, required for |
---|
| 2282 | !-- flow_statistics |
---|
| 2283 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2284 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2285 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
[2696] | 2286 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
[2232] | 2287 | ELSE |
---|
| 2288 | IF ( BTEST( wall_flags_0(k,j,i), 22 ) ) & |
---|
| 2289 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
[1] | 2290 | ENDIF |
---|
[2696] | 2291 | |
---|
[1] | 2292 | |
---|
[2232] | 2293 | ENDDO |
---|
| 2294 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 22 ) |
---|
| 2295 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 23 ) |
---|
| 2296 | ENDDO |
---|
| 2297 | ENDDO |
---|
| 2298 | ! |
---|
[2696] | 2299 | !-- Finally, set identification flags indicating natural terrain or buildings. |
---|
| 2300 | !-- Natural terrain grid points. |
---|
| 2301 | IF ( land_surface ) THEN |
---|
| 2302 | DO i = nxl, nxr |
---|
| 2303 | DO j = nys, nyn |
---|
| 2304 | DO k = nzb, nzt+1 |
---|
| 2305 | ! |
---|
| 2306 | !-- Natural terrain grid point |
---|
| 2307 | IF ( BTEST( topo(k,j,i), 1 ) ) & |
---|
| 2308 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 5 ) |
---|
| 2309 | ENDDO |
---|
| 2310 | ENDDO |
---|
| 2311 | ENDDO |
---|
| 2312 | ENDIF |
---|
| 2313 | ! |
---|
| 2314 | !-- Building grid points. |
---|
| 2315 | IF ( urban_surface ) THEN |
---|
| 2316 | DO i = nxl, nxr |
---|
| 2317 | DO j = nys, nyn |
---|
| 2318 | DO k = nzb, nzt+1 |
---|
| 2319 | IF ( BTEST( topo(k,j,i), 2 ) ) & |
---|
| 2320 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 6 ) |
---|
| 2321 | ENDDO |
---|
| 2322 | ENDDO |
---|
| 2323 | ENDDO |
---|
| 2324 | ENDIF |
---|
| 2325 | ! |
---|
[2232] | 2326 | !-- Exchange ghost points for wall flags |
---|
[2696] | 2327 | CALL exchange_horiz_int( wall_flags_0, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2328 | ! |
---|
| 2329 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 2330 | !-- boundary conditions for topography. |
---|
| 2331 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2696] | 2332 | IF ( nys == 0 ) THEN |
---|
| 2333 | DO i = 1, nbgp |
---|
| 2334 | wall_flags_0(:,nys-i,:) = wall_flags_0(:,nys,:) |
---|
| 2335 | ENDDO |
---|
| 2336 | ENDIF |
---|
| 2337 | IF ( nyn == ny ) THEN |
---|
| 2338 | DO i = 1, nbgp |
---|
| 2339 | wall_flags_0(:,nyn+i,:) = wall_flags_0(:,nyn,:) |
---|
| 2340 | ENDDO |
---|
| 2341 | ENDIF |
---|
[2232] | 2342 | ENDIF |
---|
| 2343 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[2696] | 2344 | IF ( nxl == 0 ) THEN |
---|
| 2345 | DO i = 1, nbgp |
---|
| 2346 | wall_flags_0(:,:,nxl-i) = wall_flags_0(:,:,nxl) |
---|
| 2347 | ENDDO |
---|
[2232] | 2348 | ENDIF |
---|
[2696] | 2349 | IF ( nxr == nx ) THEN |
---|
| 2350 | DO i = 1, nbgp |
---|
| 2351 | wall_flags_0(:,:,nxr+i) = wall_flags_0(:,:,nxr) |
---|
[2232] | 2352 | ENDDO |
---|
[2696] | 2353 | ENDIF |
---|
[2232] | 2354 | ENDIF |
---|
[1] | 2355 | |
---|
[1968] | 2356 | |
---|
[2696] | 2357 | END SUBROUTINE set_topo_flags |
---|
[114] | 2358 | |
---|
| 2359 | |
---|
| 2360 | |
---|