[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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[3183] | 23 | ! |
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[2233] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: init_grid.f90 3538 2018-11-20 10:55:41Z suehring $ |
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[3538] | 27 | ! Comment added |
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| 28 | ! |
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| 29 | ! 3294 2018-10-01 02:37:10Z raasch |
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[3294] | 30 | ! ocean renamed ocean_mode |
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| 31 | ! |
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| 32 | ! 3241 2018-09-12 15:02:00Z raasch |
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[3241] | 33 | ! unused variables removed |
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| 34 | ! |
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| 35 | ! 3200 2018-08-17 14:46:36Z suehring |
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[3200] | 36 | ! Bugfix, missing pre-processor directive |
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| 37 | ! |
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| 38 | ! 3183 2018-07-27 14:25:55Z suehring |
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[3183] | 39 | ! Rename variables in mesoscale-offline nesting mode |
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| 40 | ! |
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| 41 | ! 3182 2018-07-27 13:36:03Z suehring |
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[3142] | 42 | ! Bugfix in referencing buildings on orography top |
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| 43 | ! |
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| 44 | ! 3139 2018-07-17 11:30:10Z Giersch |
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[3139] | 45 | ! Bugfix in case of restarts and grid stretching |
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| 46 | ! |
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| 47 | ! 3115 2018-07-10 12:49:26Z suehring |
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[3115] | 48 | ! Referencing of buildings onto top of terrain - special treatment for bridges. |
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| 49 | ! |
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| 50 | ! 3103 2018-07-04 17:30:52Z suehring |
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[3103] | 51 | ! Reference lowest terrain height to zero level |
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| 52 | ! |
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| 53 | ! 3068 2018-06-12 14:49:41Z Giersch |
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[3068] | 54 | ! New warning message concerning grid stretching has been introduced |
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| 55 | ! |
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| 56 | ! 3066 2018-06-12 08:55:55Z Giersch |
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[3066] | 57 | ! Bugfix in IF statement before error message |
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| 58 | ! |
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| 59 | ! 3065 2018-06-12 07:03:02Z Giersch |
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[3065] | 60 | ! New vertical stretching mechanism introduced |
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| 61 | ! |
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| 62 | ! 3051 2018-05-30 17:43:55Z suehring |
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[3051] | 63 | ! Minor bugfix concerning mapping 3D buildings on top of terrain |
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| 64 | ! |
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| 65 | ! 3045 2018-05-28 07:55:41Z Giersch |
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[3045] | 66 | ! Error messages revised |
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| 67 | ! |
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[3049] | 68 | ! 3045 2018-05-28 07:55:41Z Giersch |
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| 69 | ! Error messages revised |
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| 70 | ! |
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[3045] | 71 | ! 2968 2018-04-13 11:52:24Z suehring |
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[2968] | 72 | ! Bugfix in initialization in case of elevated model surface. Introduce |
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| 73 | ! index for minimum topography-top. |
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| 74 | ! |
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| 75 | ! 2955 2018-04-09 15:14:01Z suehring |
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[2955] | 76 | ! Improve topography filter routine and add ghost-point exchange for building |
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| 77 | ! ID and building type. |
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| 78 | ! |
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| 79 | ! 2927 2018-03-23 15:13:00Z suehring |
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[2927] | 80 | ! Bugfix, setting boundary conditions for topography index array. |
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| 81 | ! |
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| 82 | ! 2918 2018-03-21 15:52:14Z gronemeier |
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[2918] | 83 | ! Moved init_mixing_length to turbulence_closure_mod.f90 |
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| 84 | ! |
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| 85 | ! 2897 2018-03-15 11:47:16Z suehring |
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[2897] | 86 | ! Relax restrictions for topography input, terrain and building heights can be |
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| 87 | ! input separately and are not mandatory any more. |
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| 88 | ! |
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| 89 | ! 2893 2018-03-14 16:20:52Z suehring |
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[2893] | 90 | ! Revise informative message concerning filtered topography (1 grid-point |
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| 91 | ! holes). |
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| 92 | ! |
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| 93 | ! 2892 2018-03-14 15:06:29Z suehring |
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[2892] | 94 | ! Bugfix, uninitialized array in case of single_building. |
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| 95 | ! |
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| 96 | ! 2867 2018-03-09 09:40:23Z suehring |
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[2867] | 97 | ! Revise mapping of 3D buildings onto onto orography. |
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| 98 | ! |
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| 99 | ! 2823 2018-02-20 15:31:45Z Giersch |
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[2823] | 100 | ! Set boundary conditions for 3D topography in case of non-cyclic boundary |
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| 101 | ! conditions |
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| 102 | ! |
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| 103 | ! 2796 2018-02-08 12:25:39Z suehring |
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[2796] | 104 | ! Bugfix in 3D building initialization |
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| 105 | ! |
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| 106 | ! 2747 2018-01-15 12:44:17Z suehring |
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[2747] | 107 | ! Bugfix, topography height is rounded to the nearest discrete grid level |
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| 108 | ! |
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| 109 | ! 2718 2018-01-02 08:49:38Z maronga |
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[2716] | 110 | ! Corrected "Former revisions" section |
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[2701] | 111 | ! |
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[2716] | 112 | ! 2701 2017-12-15 15:40:50Z suehring |
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| 113 | ! Changes from last commit documented |
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| 114 | ! |
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[2701] | 115 | ! 2698 2017-12-14 18:46:24Z suehring |
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[2716] | 116 | ! Bugfix in get_topography_top_index |
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| 117 | ! |
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| 118 | ! 2696 2017-12-14 17:12:51Z kanani |
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| 119 | ! Change in file header (GPL part) |
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[2696] | 120 | ! Revised topography input |
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| 121 | ! Set nzb_max not for the entire nest domain, only for boundary PEs |
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| 122 | ! Re-organize routine, split-up into several subroutines |
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| 123 | ! Modularize poismg_noopt |
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| 124 | ! Remove setting bit 26, 27, 28 in wall_flags_0, indicating former '_outer' |
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| 125 | ! arrays (not required any more). |
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| 126 | ! Bugfix in generic tunnel setup (MS) |
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| 127 | ! |
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| 128 | ! 2550 2017-10-16 17:12:01Z boeske |
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[2550] | 129 | ! Set lateral boundary conditions for topography on all three ghost layers |
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| 130 | ! |
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| 131 | ! 2478 2017-09-18 13:37:24Z suehring |
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[2478] | 132 | ! Bugfix, correct flag for use_top |
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| 133 | ! |
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| 134 | ! 2365 2017-08-21 14:59:59Z kanani |
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[2365] | 135 | ! Vertical nesting implemented (SadiqHuq) |
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| 136 | ! |
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| 137 | ! 2319 2017-07-20 17:33:17Z suehring |
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[2319] | 138 | ! Remove print statements |
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| 139 | ! |
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| 140 | ! 2318 2017-07-20 17:27:44Z suehring |
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[2318] | 141 | ! Get topography top index via Function call |
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| 142 | ! |
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| 143 | ! 2317 2017-07-20 17:27:19Z suehring |
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[2302] | 144 | ! Bugfixes in reading 3D topography from file |
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| 145 | ! |
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| 146 | ! 2274 2017-06-09 13:27:48Z Giersch |
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[2274] | 147 | ! Changed error messages |
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| 148 | ! |
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| 149 | ! 2233 2017-05-30 18:08:54Z suehring |
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[2233] | 150 | ! |
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| 151 | ! 2232 2017-05-30 17:47:52Z suehring |
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[2232] | 152 | ! - Adjustments according to new topography representation |
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| 153 | ! - Bugfix: Move determination of nzb_max behind topography modification in |
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| 154 | ! cell-edge case |
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| 155 | ! - Get rid off global arrays required for topography output |
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| 156 | ! - Enable topography input via netcdf |
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| 157 | ! - Generic tunnel set-up added |
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[1969] | 158 | ! |
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[2201] | 159 | ! 2200 2017-04-11 11:37:51Z suehring |
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| 160 | ! monotonic_adjustment removed |
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| 161 | ! |
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[2170] | 162 | ! 2169 2017-03-06 18:16:35Z suehring |
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| 163 | ! Bugfix, move setting for topography grid convention to init_grid, else, if no |
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| 164 | ! value is set, the simulation may abort in case of restarts |
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| 165 | ! |
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[2129] | 166 | ! 2128 2017-01-23 15:00:03Z suehring |
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| 167 | ! Bugfix in setting topography from file in case of ocean simulations |
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| 168 | ! |
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[2089] | 169 | ! 2088 2016-12-19 16:30:25Z suehring |
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| 170 | ! Bugfix in generic topography in case of ocean simulations |
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| 171 | ! |
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[2038] | 172 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 173 | ! Anelastic approximation implemented |
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| 174 | ! |
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[2022] | 175 | ! 2021 2016-10-07 14:08:57Z suehring |
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| 176 | ! Bugfix: setting Neumann boundary conditions for topography required for |
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| 177 | ! topography flags in multigrid_noopt solver |
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| 178 | ! |
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[2001] | 179 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 180 | ! Forced header and separation lines into 80 columns |
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| 181 | ! |
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[1995] | 182 | ! 1994 2016-08-15 09:52:21Z suehring |
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| 183 | ! Bugfix in definition of generic topography |
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| 184 | ! |
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[1983] | 185 | ! 1982 2016-08-01 11:04:48Z suehring |
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| 186 | ! Bugfix concering consistency check for topography |
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| 187 | ! |
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[1969] | 188 | ! 1968 2016-07-18 12:01:49Z suehring |
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[1968] | 189 | ! Changed: PE-wise reading of topography file in order to avoid global definition |
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| 190 | ! of arrays nzb_local and nzb_tmp. Thereby, topography definition for single |
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| 191 | ! buildings and street canyons has changed, as well as flag setting for |
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| 192 | ! multigrid scheme. |
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| 193 | ! |
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| 194 | ! Bugfix in checking l_grid anisotropy. |
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| 195 | ! Simplify initial computation of lwall and vertical_influence, i.e. remove |
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| 196 | ! nzb_s_inner as it is still zero at this point. |
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[1932] | 197 | ! |
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[1943] | 198 | ! 1942 2016-06-14 12:18:18Z suehring |
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| 199 | ! Topography filter implemented to fill holes resolved by only one grid point. |
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| 200 | ! Initialization of flags for ws-scheme moved to advec_ws. |
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| 201 | ! |
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[1932] | 202 | ! 1931 2016-06-10 12:06:59Z suehring |
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| 203 | ! Rename multigrid into multigrid_noopt and multigrid_fast into multigrid |
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| 204 | ! |
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[1911] | 205 | ! 1910 2016-05-26 06:49:46Z raasch |
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| 206 | ! Bugfix: if topography is read from file, Neumann conditions are used for the |
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| 207 | ! nzb_local array (instead of cyclic conditions) in case that non-cyclic |
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| 208 | ! boundary conditions are switched on for the run |
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| 209 | ! |
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[1903] | 210 | ! 1902 2016-05-09 11:18:56Z suehring |
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[1910] | 211 | ! Set topography flags for multigrid solver only (not for multigrid_fast) |
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[1903] | 212 | ! |
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[1887] | 213 | ! 1886 2016-04-21 11:20:47Z suehring |
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| 214 | ! Bugfix: setting advection flags near walls |
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| 215 | ! reformulated index values for nzb_v_inner |
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| 216 | ! variable discriptions added in declaration block |
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| 217 | ! |
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[1846] | 218 | ! 1845 2016-04-08 08:29:13Z raasch |
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| 219 | ! nzb_2d removed |
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| 220 | ! |
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[1805] | 221 | ! 1804 2016-04-05 16:30:18Z maronga |
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| 222 | ! Removed code for parameter file check (__check) |
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| 223 | ! |
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[1780] | 224 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 225 | ! coupling_char is trimmed at every place it occurs, because it can have |
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| 226 | ! different length now |
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| 227 | ! |
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[1763] | 228 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 229 | ! Introduction of nested domain feature |
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| 230 | ! |
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[1744] | 231 | ! 1743 2016-01-13 10:23:51Z raasch |
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| 232 | ! Bugfix for calculation of nzb_s_outer and nzb_u_outer at north boundary of |
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| 233 | ! total domain |
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| 234 | ! |
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[1692] | 235 | ! 1691 2015-10-26 16:17:44Z maronga |
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| 236 | ! Renamed prandtl_layer to constant_flux_layer. |
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| 237 | ! |
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[1683] | 238 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 239 | ! Code annotations made doxygen readable |
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| 240 | ! |
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[1678] | 241 | ! 1677 2015-10-02 13:25:23Z boeske |
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| 242 | ! Bugfix: Ghost points are included in wall_flags_0 and wall_flags_00 |
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| 243 | ! |
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[1676] | 244 | ! 1675 2015-10-02 08:28:59Z gronemeier |
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| 245 | ! Bugfix: Definition of topography grid levels |
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| 246 | ! |
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[1662] | 247 | ! 1660 2015-09-21 08:15:16Z gronemeier |
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| 248 | ! Bugfix: Definition of topography grid levels if vertical grid stretching |
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| 249 | ! starts below the maximum topography height. |
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| 250 | ! |
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[1581] | 251 | ! 1580 2015-04-10 13:43:49Z suehring |
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| 252 | ! Bugfix: setting flags for 5th order scheme near buildings |
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| 253 | ! |
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[1576] | 254 | ! 1575 2015-03-27 09:56:27Z raasch |
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| 255 | ! adjustments for psolver-queries |
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| 256 | ! |
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[1558] | 257 | ! 1557 2015-03-05 16:43:04Z suehring |
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| 258 | ! Adjustment for monotoinic limiter |
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| 259 | ! |
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[1419] | 260 | ! 1418 2014-06-06 13:05:08Z fricke |
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| 261 | ! Bugfix: Change if-condition for stretched grid in the ocean, with the old |
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| 262 | ! condition and a negative value for dz_stretch_level the condition |
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| 263 | ! was always true for the whole model domain |
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| 264 | ! |
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[1410] | 265 | ! 1409 2014-05-23 12:11:32Z suehring |
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| 266 | ! Bugfix: set wall_flags_0 at inflow and outflow boundary also for i <= nxlu |
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| 267 | ! j <= nysv |
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| 268 | ! |
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[1354] | 269 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 270 | ! REAL constants provided with KIND-attribute |
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| 271 | ! |
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[1323] | 272 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 273 | ! REAL constants defined as wp-kind |
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| 274 | ! |
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[1321] | 275 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 276 | ! ONLY-attribute added to USE-statements, |
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| 277 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 278 | ! kinds are defined in new module kinds, |
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| 279 | ! revision history before 2012 removed, |
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| 280 | ! comment fields (!:) to be used for variable explanations added to |
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| 281 | ! all variable declaration statements |
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[1321] | 282 | ! |
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[1222] | 283 | ! 1221 2013-09-10 08:59:13Z raasch |
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| 284 | ! wall_flags_00 introduced to hold bits 32-63, |
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| 285 | ! additional 3D-flag arrays for replacing the 2D-index array nzb_s_inner in |
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| 286 | ! loops optimized for openACC (pres + flow_statistics) |
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| 287 | ! |
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[1093] | 288 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 289 | ! unused variables removed |
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| 290 | ! |
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[1070] | 291 | ! 1069 2012-11-28 16:18:43Z maronga |
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[1779] | 292 | ! bugfix: added coupling_char to TOPOGRAPHY_DATA to allow topography in the |
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| 293 | ! ocean model in case of coupled runs |
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[1070] | 294 | ! |
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[1037] | 295 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 296 | ! code put under GPL (PALM 3.9) |
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| 297 | ! |
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[1017] | 298 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 299 | ! lower index for calculating wall_flags_0 set to nzb_w_inner instead of |
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| 300 | ! nzb_w_inner+1 |
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| 301 | ! |
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[997] | 302 | ! 996 2012-09-07 10:41:47Z raasch |
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| 303 | ! little reformatting |
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| 304 | ! |
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[979] | 305 | ! 978 2012-08-09 08:28:32Z fricke |
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| 306 | ! Bugfix: nzb_max is set to nzt at non-cyclic lateral boundaries |
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| 307 | ! Bugfix: Set wall_flags_0 for inflow boundary |
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| 308 | ! |
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[928] | 309 | ! 927 2012-06-06 19:15:04Z raasch |
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| 310 | ! Wall flags are not set for multigrid method in case of masking method |
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| 311 | ! |
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[865] | 312 | ! 864 2012-03-27 15:10:33Z gryschka |
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[927] | 313 | ! In case of ocean and Dirichlet bottom bc for u and v dzu_mg and ddzu_pres |
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| 314 | ! were not correctly defined for k=1. |
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[865] | 315 | ! |
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[863] | 316 | ! 861 2012-03-26 14:18:34Z suehring |
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[861] | 317 | ! Set wall_flags_0. The array is needed for degradation in ws-scheme near walls, |
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| 318 | ! inflow and outflow boundaries as well as near the bottom and the top of the |
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[863] | 319 | ! model domain.! |
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[861] | 320 | ! Initialization of nzb_s_inner and nzb_w_inner. |
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| 321 | ! gls has to be at least nbgp to do not exceed the array bounds of nzb_local |
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| 322 | ! while setting wall_flags_0 |
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| 323 | ! |
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[844] | 324 | ! 843 2012-02-29 15:16:21Z gryschka |
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| 325 | ! In case of ocean and dirichlet bc for u and v at the bottom |
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| 326 | ! the first u-level ist defined at same height as the first w-level |
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| 327 | ! |
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[819] | 328 | ! 818 2012-02-08 16:11:23Z maronga |
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| 329 | ! Bugfix: topo_height is only required if topography is used. It is thus now |
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| 330 | ! allocated in the topography branch |
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| 331 | ! |
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[810] | 332 | ! 809 2012-01-30 13:32:58Z maronga |
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| 333 | ! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives |
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| 334 | ! |
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[808] | 335 | ! 807 2012-01-25 11:53:51Z maronga |
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| 336 | ! New cpp directive "__check" implemented which is used by check_namelist_files |
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| 337 | ! |
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[1] | 338 | ! Revision 1.1 1997/08/11 06:17:45 raasch |
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| 339 | ! Initial revision (Testversion) |
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| 340 | ! |
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| 341 | ! |
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| 342 | ! Description: |
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[2696] | 343 | ! -----------------------------------------------------------------------------! |
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[1682] | 344 | !> Creating grid depending constants |
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[2696] | 345 | !> @todo: Rearrange topo flag list |
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| 346 | !> @todo: reference 3D buildings on top of orography is not tested and may need |
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| 347 | !> further improvement for steep slopes |
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| 348 | !> @todo: Use more advanced setting of building type at filled holes |
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[1] | 349 | !------------------------------------------------------------------------------! |
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[1682] | 350 | SUBROUTINE init_grid |
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| 351 | |
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[1942] | 352 | USE advec_ws, & |
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| 353 | ONLY: ws_init_flags |
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[1] | 354 | |
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[1320] | 355 | USE arrays_3d, & |
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[2696] | 356 | ONLY: dd2zu, ddzu, ddzu_pres, ddzw, dzu, dzw, zu, zw |
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[1320] | 357 | |
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[1353] | 358 | USE control_parameters, & |
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[3182] | 359 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, & |
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| 360 | bc_dirichlet_s, bc_lr_cyc, bc_ns_cyc, bc_radiation_l, & |
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| 361 | bc_radiation_n, bc_radiation_r, bc_radiation_s, & |
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[3241] | 362 | constant_flux_layer, dz, dz_max, dz_stretch_factor, & |
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[3065] | 363 | dz_stretch_factor_array, dz_stretch_level, dz_stretch_level_end,& |
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| 364 | dz_stretch_level_end_index, dz_stretch_level_start_index, & |
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[3241] | 365 | dz_stretch_level_start, ibc_uv_b, message_string, & |
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[3182] | 366 | momentum_advec, number_stretch_level_end, & |
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[3294] | 367 | number_stretch_level_start, ocean_mode, psolver, scalar_advec, & |
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[3241] | 368 | topography, use_surface_fluxes |
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[2021] | 369 | |
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[1320] | 370 | USE grid_variables, & |
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[2232] | 371 | ONLY: ddx, ddx2, ddy, ddy2, dx, dx2, dy, dy2, zu_s_inner, zw_w_inner |
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[1320] | 372 | |
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| 373 | USE indices, & |
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[2696] | 374 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nz, & |
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[2232] | 375 | nzb, nzb_diff, nzb_diff_s_inner, nzb_diff_s_outer, & |
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| 376 | nzb_max, nzb_s_inner, nzb_s_outer, nzb_u_inner, & |
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[1845] | 377 | nzb_u_outer, nzb_v_inner, nzb_v_outer, nzb_w_inner, & |
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[2968] | 378 | nzb_w_outer, nzt, topo_min_level |
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[1320] | 379 | |
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| 380 | USE kinds |
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[2696] | 381 | |
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[1] | 382 | USE pegrid |
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| 383 | |
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[2696] | 384 | USE poismg_noopt_mod |
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| 385 | |
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[2232] | 386 | USE surface_mod, & |
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[2698] | 387 | ONLY: get_topography_top_index, get_topography_top_index_ji, init_bc |
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[2232] | 388 | |
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[2365] | 389 | USE vertical_nesting_mod, & |
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| 390 | ONLY: vnested, vnest_init_grid |
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| 391 | |
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[1] | 392 | IMPLICIT NONE |
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| 393 | |
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[3182] | 394 | INTEGER(iwp) :: i !< index variable along x |
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| 395 | INTEGER(iwp) :: j !< index variable along y |
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| 396 | INTEGER(iwp) :: k !< index variable along z |
---|
| 397 | INTEGER(iwp) :: k_top !< topography top index on local PE |
---|
| 398 | INTEGER(iwp) :: n !< loop variable for stretching |
---|
| 399 | INTEGER(iwp) :: number_dz !< number of user-specified dz values |
---|
| 400 | INTEGER(iwp) :: nzb_local_max !< vertical grid index of maximum topography height |
---|
| 401 | INTEGER(iwp) :: nzb_local_min !< vertical grid index of minimum topography height |
---|
[2232] | 402 | |
---|
[3065] | 403 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
---|
| 404 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_tmp !< dummy to calculate topography indices on u- and v-grid |
---|
[1] | 405 | |
---|
[2696] | 406 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
[2232] | 407 | |
---|
[3065] | 408 | REAL(wp) :: dz_level_end !< distance between calculated height level for u/v-grid and user-specified end level for stretching |
---|
[1886] | 409 | REAL(wp) :: dz_stretched !< stretched vertical grid spacing |
---|
[3065] | 410 | |
---|
| 411 | REAL(wp), DIMENSION(:), ALLOCATABLE :: min_dz_stretch_level_end !< Array that contains all minimum heights where the stretching can end |
---|
[861] | 412 | |
---|
[1] | 413 | |
---|
| 414 | ! |
---|
[709] | 415 | !-- Calculation of horizontal array bounds including ghost layers |
---|
[667] | 416 | nxlg = nxl - nbgp |
---|
| 417 | nxrg = nxr + nbgp |
---|
| 418 | nysg = nys - nbgp |
---|
| 419 | nyng = nyn + nbgp |
---|
[709] | 420 | |
---|
[667] | 421 | ! |
---|
[1] | 422 | !-- Allocate grid arrays |
---|
[1353] | 423 | ALLOCATE( ddzu(1:nzt+1), ddzw(1:nzt+1), dd2zu(1:nzt), dzu(1:nzt+1), & |
---|
[2696] | 424 | dzw(1:nzt+1), zu(nzb:nzt+1), zw(nzb:nzt+1) ) |
---|
[1] | 425 | |
---|
| 426 | ! |
---|
| 427 | !-- Compute height of u-levels from constant grid length and dz stretch factors |
---|
[3065] | 428 | IF ( dz(1) == -1.0_wp ) THEN |
---|
[254] | 429 | message_string = 'missing dz' |
---|
| 430 | CALL message( 'init_grid', 'PA0200', 1, 2, 0, 6, 0 ) |
---|
[3065] | 431 | ELSEIF ( dz(1) <= 0.0_wp ) THEN |
---|
| 432 | WRITE( message_string, * ) 'dz=',dz(1),' <= 0.0' |
---|
[254] | 433 | CALL message( 'init_grid', 'PA0201', 1, 2, 0, 6, 0 ) |
---|
[1] | 434 | ENDIF |
---|
[94] | 435 | |
---|
[1] | 436 | ! |
---|
[3065] | 437 | !-- Initialize dz_stretch_level_start with the value of dz_stretch_level |
---|
| 438 | !-- if it was set by the user |
---|
| 439 | IF ( dz_stretch_level /= -9999999.9_wp ) THEN |
---|
| 440 | dz_stretch_level_start(1) = dz_stretch_level |
---|
| 441 | ENDIF |
---|
| 442 | |
---|
| 443 | ! |
---|
| 444 | !-- Determine number of dz values and stretching levels specified by the |
---|
| 445 | !-- user to allow right controlling of the stretching mechanism and to |
---|
[3139] | 446 | !-- perform error checks. The additional requirement that dz /= dz_max |
---|
| 447 | !-- for counting number of user-specified dz values is necessary. Otherwise |
---|
| 448 | !-- restarts would abort if the old stretching mechanism with dz_stretch_level |
---|
| 449 | !-- is used (Attention: The user is not allowed to specify a dz value equal |
---|
| 450 | !-- to the default of dz_max = 999.0). |
---|
| 451 | number_dz = COUNT( dz /= -1.0_wp .AND. dz /= dz_max) |
---|
[3065] | 452 | number_stretch_level_start = COUNT( dz_stretch_level_start /= & |
---|
| 453 | -9999999.9_wp ) |
---|
| 454 | number_stretch_level_end = COUNT( dz_stretch_level_end /= & |
---|
| 455 | 9999999.9_wp ) |
---|
| 456 | |
---|
| 457 | ! |
---|
| 458 | !-- The number of specified end levels +1 has to be the same than the number |
---|
| 459 | !-- of specified dz values |
---|
| 460 | IF ( number_dz /= number_stretch_level_end + 1 ) THEN |
---|
| 461 | WRITE( message_string, * ) 'The number of values for dz = ', & |
---|
| 462 | number_dz, 'has to be the same than& ', & |
---|
| 463 | 'the number of values for ', & |
---|
| 464 | 'dz_stretch_level_end + 1 = ', & |
---|
| 465 | number_stretch_level_end+1 |
---|
| 466 | CALL message( 'init_grid', 'PA0156', 1, 2, 0, 6, 0 ) |
---|
| 467 | ENDIF |
---|
| 468 | |
---|
| 469 | ! |
---|
| 470 | !-- The number of specified start levels has to be the same or one less than |
---|
| 471 | !-- the number of specified dz values |
---|
| 472 | IF ( number_dz /= number_stretch_level_start + 1 .AND. & |
---|
| 473 | number_dz /= number_stretch_level_start ) THEN |
---|
| 474 | WRITE( message_string, * ) 'The number of values for dz = ', & |
---|
| 475 | number_dz, 'has to be the same or one ', & |
---|
| 476 | 'more than& the number of values for ', & |
---|
| 477 | 'dz_stretch_level_start = ', & |
---|
| 478 | number_stretch_level_start |
---|
| 479 | CALL message( 'init_grid', 'PA0211', 1, 2, 0, 6, 0 ) |
---|
| 480 | ENDIF |
---|
| 481 | |
---|
| 482 | !-- The number of specified start levels has to be the same or one more than |
---|
| 483 | !-- the number of specified end levels |
---|
| 484 | IF ( number_stretch_level_start /= number_stretch_level_end + 1 .AND. & |
---|
| 485 | number_stretch_level_start /= number_stretch_level_end ) THEN |
---|
| 486 | WRITE( message_string, * ) 'The number of values for ', & |
---|
| 487 | 'dz_stretch_level_start = ', & |
---|
| 488 | dz_stretch_level_start, 'has to be the ',& |
---|
| 489 | 'same or one more than& the number of ', & |
---|
| 490 | 'values for dz_stretch_level_end = ', & |
---|
| 491 | number_stretch_level_end |
---|
| 492 | CALL message( 'init_grid', 'PA0216', 1, 2, 0, 6, 0 ) |
---|
| 493 | ENDIF |
---|
| 494 | |
---|
| 495 | ! |
---|
| 496 | !-- Initialize dz for the free atmosphere with the value of dz_max |
---|
| 497 | IF ( dz(number_stretch_level_start+1) == -1.0_wp .AND. & |
---|
| 498 | number_stretch_level_start /= 0 ) THEN |
---|
| 499 | dz(number_stretch_level_start+1) = dz_max |
---|
| 500 | ENDIF |
---|
| 501 | |
---|
| 502 | ! |
---|
| 503 | !-- Initialize the stretching factor if (infinitely) stretching in the free |
---|
| 504 | !-- atmosphere is desired (dz_stretch_level_end was not specified for the |
---|
| 505 | !-- free atmosphere) |
---|
| 506 | IF ( number_stretch_level_start == number_stretch_level_end + 1 ) THEN |
---|
| 507 | dz_stretch_factor_array(number_stretch_level_start) = & |
---|
| 508 | dz_stretch_factor |
---|
| 509 | ENDIF |
---|
| 510 | |
---|
| 511 | ! |
---|
| 512 | !-- Allocation of arrays for stretching |
---|
| 513 | ALLOCATE( min_dz_stretch_level_end(number_stretch_level_start) ) |
---|
[3066] | 514 | |
---|
[3065] | 515 | ! |
---|
[94] | 516 | !-- Define the vertical grid levels |
---|
[3294] | 517 | IF ( .NOT. ocean_mode ) THEN |
---|
[3065] | 518 | |
---|
[94] | 519 | ! |
---|
[3065] | 520 | !-- The stretching region has to be large enough to allow for a smooth |
---|
| 521 | !-- transition between two different grid spacings |
---|
| 522 | DO n = 1, number_stretch_level_start |
---|
| 523 | min_dz_stretch_level_end(n) = dz_stretch_level_start(n) + & |
---|
| 524 | 4 * MAX( dz(n),dz(n+1) ) |
---|
| 525 | ENDDO |
---|
| 526 | |
---|
[3066] | 527 | IF ( ANY( min_dz_stretch_level_end(1:number_stretch_level_start) > & |
---|
| 528 | dz_stretch_level_end(1:number_stretch_level_start) ) ) THEN |
---|
[3065] | 529 | message_string= 'Eeach dz_stretch_level_end has to be larger ' // & |
---|
| 530 | 'than its corresponding value for &' // & |
---|
| 531 | 'dz_stretch_level_start + 4*MAX(dz(n),dz(n+1)) '//& |
---|
| 532 | 'to allow for smooth grid stretching' |
---|
| 533 | CALL message( 'init_grid', 'PA0224', 1, 2, 0, 6, 0 ) |
---|
| 534 | ENDIF |
---|
| 535 | |
---|
| 536 | ! |
---|
| 537 | !-- Stretching must not be applied within the prandtl_layer |
---|
| 538 | !-- (first two grid points). For the default case dz_stretch_level_start |
---|
| 539 | !-- is negative. Therefore the absolut value is checked here. |
---|
| 540 | IF ( ANY( ABS( dz_stretch_level_start ) < dz(1) * 1.5_wp ) ) THEN |
---|
| 541 | WRITE( message_string, * ) 'Eeach dz_stretch_level_start has to be ',& |
---|
| 542 | 'larger than ', dz(1) * 1.5 |
---|
| 543 | CALL message( 'init_grid', 'PA0226', 1, 2, 0, 6, 0 ) |
---|
| 544 | ENDIF |
---|
| 545 | |
---|
| 546 | ! |
---|
| 547 | !-- The stretching has to start and end on a grid level. Therefore |
---|
| 548 | !-- user-specified values have to ''interpolate'' to the next lowest level |
---|
| 549 | IF ( number_stretch_level_start /= 0 ) THEN |
---|
| 550 | dz_stretch_level_start(1) = INT( (dz_stretch_level_start(1) - & |
---|
| 551 | dz(1)/2.0) / dz(1) ) & |
---|
| 552 | * dz(1) + dz(1)/2.0 |
---|
| 553 | ENDIF |
---|
| 554 | |
---|
| 555 | IF ( number_stretch_level_start > 1 ) THEN |
---|
| 556 | DO n = 2, number_stretch_level_start |
---|
| 557 | dz_stretch_level_start(n) = INT( dz_stretch_level_start(n) / & |
---|
| 558 | dz(n) ) * dz(n) |
---|
| 559 | ENDDO |
---|
| 560 | ENDIF |
---|
| 561 | |
---|
| 562 | IF ( number_stretch_level_end /= 0 ) THEN |
---|
| 563 | DO n = 1, number_stretch_level_end |
---|
| 564 | dz_stretch_level_end(n) = INT( dz_stretch_level_end(n) / & |
---|
| 565 | dz(n+1) ) * dz(n+1) |
---|
| 566 | ENDDO |
---|
| 567 | ENDIF |
---|
| 568 | |
---|
| 569 | ! |
---|
| 570 | !-- Determine stretching factor if necessary |
---|
| 571 | IF ( number_stretch_level_end >= 1 ) THEN |
---|
| 572 | CALL calculate_stretching_factor( number_stretch_level_end ) |
---|
| 573 | ENDIF |
---|
| 574 | |
---|
| 575 | ! |
---|
[94] | 576 | !-- Grid for atmosphere with surface at z=0 (k=0, w-grid). |
---|
[3065] | 577 | !-- First compute the u- and v-levels. In case of dirichlet bc for u and v |
---|
| 578 | !-- the first u/v- and w-level (k=0) are defined at same height (z=0). |
---|
[843] | 579 | !-- The second u-level (k=1) corresponds to the top of the |
---|
[94] | 580 | !-- Prandtl-layer. |
---|
[667] | 581 | IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN |
---|
[1353] | 582 | zu(0) = 0.0_wp |
---|
[667] | 583 | ELSE |
---|
[3065] | 584 | zu(0) = - dz(1) * 0.5_wp |
---|
[667] | 585 | ENDIF |
---|
[3065] | 586 | |
---|
| 587 | zu(1) = dz(1) * 0.5_wp |
---|
| 588 | |
---|
| 589 | ! |
---|
| 590 | !-- Determine u and v height levels considering the possibility of grid |
---|
| 591 | !-- stretching in several heights. |
---|
| 592 | n = 1 |
---|
| 593 | dz_stretch_level_start_index = nzt+1 |
---|
| 594 | dz_stretch_level_end_index = nzt+1 |
---|
| 595 | dz_stretched = dz(1) |
---|
[1] | 596 | |
---|
[3065] | 597 | !-- The default value of dz_stretch_level_start is negative, thus the first |
---|
| 598 | !-- condition is always true. Hence, the second condition is necessary. |
---|
[94] | 599 | DO k = 2, nzt+1 |
---|
[3065] | 600 | IF ( dz_stretch_level_start(n) <= zu(k-1) .AND. & |
---|
| 601 | dz_stretch_level_start(n) /= -9999999.9_wp ) THEN |
---|
| 602 | dz_stretched = dz_stretched * dz_stretch_factor_array(n) |
---|
| 603 | |
---|
| 604 | IF ( dz(n) > dz(n+1) ) THEN |
---|
| 605 | dz_stretched = MAX( dz_stretched, dz(n+1) ) !Restrict dz_stretched to the user-specified (higher) dz |
---|
| 606 | ELSE |
---|
| 607 | dz_stretched = MIN( dz_stretched, dz(n+1) ) !Restrict dz_stretched to the user-specified (lower) dz |
---|
| 608 | ENDIF |
---|
| 609 | |
---|
| 610 | IF ( dz_stretch_level_start_index(n) == nzt+1 ) & |
---|
| 611 | dz_stretch_level_start_index(n) = k-1 |
---|
| 612 | |
---|
[94] | 613 | ENDIF |
---|
[3065] | 614 | |
---|
[94] | 615 | zu(k) = zu(k-1) + dz_stretched |
---|
[3065] | 616 | |
---|
| 617 | ! |
---|
| 618 | !-- Make sure that the stretching ends exactly at dz_stretch_level_end |
---|
| 619 | dz_level_end = ABS( zu(k) - dz_stretch_level_end(n) ) |
---|
| 620 | |
---|
| 621 | IF ( dz_level_end < dz(n+1)/3.0 ) THEN |
---|
| 622 | zu(k) = dz_stretch_level_end(n) |
---|
| 623 | dz_stretched = dz(n+1) |
---|
| 624 | dz_stretch_level_end_index(n) = k |
---|
| 625 | n = n + 1 |
---|
| 626 | ENDIF |
---|
[94] | 627 | ENDDO |
---|
[1] | 628 | |
---|
| 629 | ! |
---|
[94] | 630 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 631 | !-- corresponding u-levels. In case of dirichlet bc for u and v at the |
---|
| 632 | !-- ground the first u- and w-level (k=0) are defined at same height (z=0). |
---|
| 633 | !-- The top w-level is extrapolated linearly. |
---|
[1353] | 634 | zw(0) = 0.0_wp |
---|
[94] | 635 | DO k = 1, nzt |
---|
[1353] | 636 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 637 | ENDDO |
---|
[1353] | 638 | zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) |
---|
[1] | 639 | |
---|
[94] | 640 | ELSE |
---|
[3065] | 641 | |
---|
[1] | 642 | ! |
---|
[3065] | 643 | !-- The stretching region has to be large enough to allow for a smooth |
---|
| 644 | !-- transition between two different grid spacings |
---|
| 645 | DO n = 1, number_stretch_level_start |
---|
| 646 | min_dz_stretch_level_end(n) = dz_stretch_level_start(n) - & |
---|
| 647 | 4 * MAX( dz(n),dz(n+1) ) |
---|
| 648 | ENDDO |
---|
| 649 | |
---|
[3066] | 650 | IF ( ANY( min_dz_stretch_level_end (1:number_stretch_level_start) < & |
---|
| 651 | dz_stretch_level_end(1:number_stretch_level_start) ) ) THEN |
---|
[3065] | 652 | message_string= 'Eeach dz_stretch_level_end has to be less ' // & |
---|
| 653 | 'than its corresponding value for &' // & |
---|
| 654 | 'dz_stretch_level_start - 4*MAX(dz(n),dz(n+1)) '//& |
---|
| 655 | 'to allow for smooth grid stretching' |
---|
| 656 | CALL message( 'init_grid', 'PA0224', 1, 2, 0, 6, 0 ) |
---|
| 657 | ENDIF |
---|
| 658 | |
---|
| 659 | ! |
---|
[3068] | 660 | !-- Stretching must not be applied close to the surface (last two grid |
---|
| 661 | !-- points). For the default case dz_stretch_level_start is negative. |
---|
| 662 | IF ( ANY( dz_stretch_level_start > - dz(1) * 1.5_wp ) ) THEN |
---|
[3065] | 663 | WRITE( message_string, * ) 'Eeach dz_stretch_level_start has to be ',& |
---|
| 664 | 'less than ', dz(1) * 1.5 |
---|
| 665 | CALL message( 'init_grid', 'PA0226', 1, 2, 0, 6, 0 ) |
---|
| 666 | ENDIF |
---|
| 667 | |
---|
| 668 | ! |
---|
| 669 | !-- The stretching has to start and end on a grid level. Therefore |
---|
| 670 | !-- user-specified values have to ''interpolate'' to the next highest level |
---|
| 671 | IF ( number_stretch_level_start /= 0 ) THEN |
---|
| 672 | dz_stretch_level_start(1) = INT( (dz_stretch_level_start(1) + & |
---|
| 673 | dz(1)/2.0) / dz(1) ) & |
---|
| 674 | * dz(1) - dz(1)/2.0 |
---|
| 675 | ENDIF |
---|
| 676 | |
---|
| 677 | IF ( number_stretch_level_start > 1 ) THEN |
---|
| 678 | DO n = 2, number_stretch_level_start |
---|
| 679 | dz_stretch_level_start(n) = INT( dz_stretch_level_start(n) / & |
---|
| 680 | dz(n) ) * dz(n) |
---|
| 681 | ENDDO |
---|
| 682 | ENDIF |
---|
| 683 | |
---|
| 684 | IF ( number_stretch_level_end /= 0 ) THEN |
---|
| 685 | DO n = 1, number_stretch_level_end |
---|
| 686 | dz_stretch_level_end(n) = INT( dz_stretch_level_end(n) / & |
---|
| 687 | dz(n+1) ) * dz(n+1) |
---|
| 688 | ENDDO |
---|
| 689 | ENDIF |
---|
| 690 | |
---|
| 691 | ! |
---|
| 692 | !-- Determine stretching factor if necessary |
---|
| 693 | IF ( number_stretch_level_end >= 1 ) THEN |
---|
| 694 | CALL calculate_stretching_factor( number_stretch_level_end ) |
---|
| 695 | ENDIF |
---|
| 696 | |
---|
| 697 | ! |
---|
[843] | 698 | !-- Grid for ocean with free water surface is at k=nzt (w-grid). |
---|
| 699 | !-- In case of neumann bc at the ground the first first u-level (k=0) lies |
---|
| 700 | !-- below the first w-level (k=0). In case of dirichlet bc the first u- and |
---|
| 701 | !-- w-level are defined at same height, but staggered from the second level. |
---|
| 702 | !-- The second u-level (k=1) corresponds to the top of the Prandtl-layer. |
---|
[3065] | 703 | !-- z values are negative starting from z=0 (surface) |
---|
| 704 | zu(nzt+1) = dz(1) * 0.5_wp |
---|
| 705 | zu(nzt) = - dz(1) * 0.5_wp |
---|
[94] | 706 | |
---|
[3065] | 707 | ! |
---|
| 708 | !-- Determine u and v height levels considering the possibility of grid |
---|
| 709 | !-- stretching in several heights. |
---|
| 710 | n = 1 |
---|
| 711 | dz_stretch_level_start_index = 0 |
---|
| 712 | dz_stretch_level_end_index = 0 |
---|
| 713 | dz_stretched = dz(1) |
---|
| 714 | |
---|
[94] | 715 | DO k = nzt-1, 0, -1 |
---|
[3065] | 716 | |
---|
| 717 | IF ( dz_stretch_level_start(n) >= zu(k+1) ) THEN |
---|
| 718 | dz_stretched = dz_stretched * dz_stretch_factor_array(n) |
---|
| 719 | |
---|
| 720 | IF ( dz(n) > dz(n+1) ) THEN |
---|
| 721 | dz_stretched = MAX( dz_stretched, dz(n+1) ) !Restrict dz_stretched to the user-specified (higher) dz |
---|
| 722 | ELSE |
---|
| 723 | dz_stretched = MIN( dz_stretched, dz(n+1) ) !Restrict dz_stretched to the user-specified (lower) dz |
---|
| 724 | ENDIF |
---|
| 725 | |
---|
| 726 | IF ( dz_stretch_level_start_index(n) == 0 ) & |
---|
| 727 | dz_stretch_level_start_index(n) = k+1 |
---|
| 728 | |
---|
| 729 | ENDIF |
---|
| 730 | |
---|
| 731 | zu(k) = zu(k+1) - dz_stretched |
---|
| 732 | |
---|
[1418] | 733 | ! |
---|
[3065] | 734 | !-- Make sure that the stretching ends exactly at dz_stretch_level_end |
---|
| 735 | dz_level_end = ABS( zu(k) - dz_stretch_level_end(n) ) |
---|
| 736 | |
---|
| 737 | IF ( dz_level_end < dz(n+1)/3.0 ) THEN |
---|
| 738 | zu(k) = dz_stretch_level_end(n) |
---|
| 739 | dz_stretched = dz(n+1) |
---|
| 740 | dz_stretch_level_end_index(n) = k |
---|
| 741 | n = n + 1 |
---|
[94] | 742 | ENDIF |
---|
| 743 | ENDDO |
---|
[3065] | 744 | |
---|
[94] | 745 | ! |
---|
| 746 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 747 | !-- corresponding u-levels, except in case of dirichlet bc for u and v |
---|
| 748 | !-- at the ground. In this case the first u- and w-level are defined at |
---|
| 749 | !-- same height. The top w-level (nzt+1) is not used but set for |
---|
| 750 | !-- consistency, since w and all scalar variables are defined up tp nzt+1. |
---|
[3065] | 751 | zw(nzt+1) = dz(1) |
---|
[1353] | 752 | zw(nzt) = 0.0_wp |
---|
[94] | 753 | DO k = 0, nzt |
---|
[1353] | 754 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 755 | ENDDO |
---|
| 756 | |
---|
[843] | 757 | ! |
---|
| 758 | !-- In case of dirichlet bc for u and v the first u- and w-level are defined |
---|
| 759 | !-- at same height. |
---|
| 760 | IF ( ibc_uv_b == 0 ) THEN |
---|
| 761 | zu(0) = zw(0) |
---|
| 762 | ENDIF |
---|
| 763 | |
---|
[94] | 764 | ENDIF |
---|
| 765 | |
---|
| 766 | ! |
---|
[1] | 767 | !-- Compute grid lengths. |
---|
| 768 | DO k = 1, nzt+1 |
---|
| 769 | dzu(k) = zu(k) - zu(k-1) |
---|
[1353] | 770 | ddzu(k) = 1.0_wp / dzu(k) |
---|
[1] | 771 | dzw(k) = zw(k) - zw(k-1) |
---|
[1353] | 772 | ddzw(k) = 1.0_wp / dzw(k) |
---|
[1] | 773 | ENDDO |
---|
| 774 | |
---|
| 775 | DO k = 1, nzt |
---|
[1353] | 776 | dd2zu(k) = 1.0_wp / ( dzu(k) + dzu(k+1) ) |
---|
[1] | 777 | ENDDO |
---|
[667] | 778 | |
---|
| 779 | ! |
---|
[709] | 780 | !-- The FFT- SOR-pressure solvers assume grid spacings of a staggered grid |
---|
| 781 | !-- everywhere. For the actual grid, the grid spacing at the lowest level |
---|
| 782 | !-- is only dz/2, but should be dz. Therefore, an additional array |
---|
| 783 | !-- containing with appropriate grid information is created for these |
---|
| 784 | !-- solvers. |
---|
[1575] | 785 | IF ( psolver(1:9) /= 'multigrid' ) THEN |
---|
[667] | 786 | ALLOCATE( ddzu_pres(1:nzt+1) ) |
---|
| 787 | ddzu_pres = ddzu |
---|
[864] | 788 | ddzu_pres(1) = ddzu_pres(2) ! change for lowest level |
---|
[1] | 789 | ENDIF |
---|
| 790 | |
---|
| 791 | ! |
---|
| 792 | !-- Compute the reciprocal values of the horizontal grid lengths. |
---|
[1353] | 793 | ddx = 1.0_wp / dx |
---|
| 794 | ddy = 1.0_wp / dy |
---|
[1] | 795 | dx2 = dx * dx |
---|
| 796 | dy2 = dy * dy |
---|
[1353] | 797 | ddx2 = 1.0_wp / dx2 |
---|
| 798 | ddy2 = 1.0_wp / dy2 |
---|
[1] | 799 | |
---|
| 800 | ! |
---|
[2696] | 801 | !-- Allocate 3D array to set topography |
---|
| 802 | ALLOCATE( topo(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 803 | topo = 0 |
---|
| 804 | ! |
---|
| 805 | !-- Initialize topography by generic topography or read from topography from file. |
---|
| 806 | CALL init_topo( topo ) |
---|
| 807 | ! |
---|
| 808 | !-- Set flags to mask topography on the grid. |
---|
| 809 | CALL set_topo_flags( topo ) |
---|
| 810 | ! |
---|
| 811 | !-- Calculate wall flag arrays for the multigrid method. |
---|
| 812 | !-- Please note, wall flags are only applied in the non-optimized version. |
---|
| 813 | IF ( psolver == 'multigrid_noopt' ) CALL poismg_noopt_init |
---|
| 814 | |
---|
| 815 | ! |
---|
| 816 | !-- Init flags for ws-scheme to degrade order of the numerics near walls, i.e. |
---|
| 817 | !-- to decrease the numerical stencil appropriately. |
---|
| 818 | IF ( momentum_advec == 'ws-scheme' .OR. scalar_advec == 'ws-scheme' ) & |
---|
| 819 | CALL ws_init_flags |
---|
| 820 | |
---|
| 821 | ! |
---|
| 822 | !-- Determine the maximum level of topography. It is used for |
---|
| 823 | !-- steering the degradation of order of the applied advection scheme, |
---|
| 824 | !-- as well in the lpm. |
---|
| 825 | !-- In case of non-cyclic lateral boundaries, the order of the advection |
---|
| 826 | !-- scheme has to be reduced up to nzt (required at the lateral boundaries). |
---|
| 827 | k_top = 0 |
---|
| 828 | DO i = nxl, nxr |
---|
| 829 | DO j = nys, nyn |
---|
| 830 | DO k = nzb, nzt + 1 |
---|
| 831 | k_top = MAX( k_top, MERGE( k, 0, & |
---|
| 832 | .NOT. BTEST( topo(k,j,i), 0 ) ) ) |
---|
| 833 | ENDDO |
---|
| 834 | ENDDO |
---|
[1] | 835 | ENDDO |
---|
[2696] | 836 | #if defined( __parallel ) |
---|
| 837 | CALL MPI_ALLREDUCE( k_top + 1, nzb_max, 1, MPI_INTEGER, & !is +1 really necessary here? |
---|
| 838 | MPI_MAX, comm2d, ierr ) |
---|
| 839 | #else |
---|
| 840 | nzb_max = k_top + 1 |
---|
| 841 | #endif |
---|
[3182] | 842 | IF ( bc_dirichlet_l .OR. bc_radiation_l .OR. & |
---|
| 843 | bc_dirichlet_r .OR. bc_radiation_r .OR. & |
---|
| 844 | bc_dirichlet_n .OR. bc_radiation_n .OR. & |
---|
| 845 | bc_dirichlet_s .OR. bc_radiation_s ) & |
---|
[2696] | 846 | nzb_max = nzt |
---|
| 847 | ! |
---|
| 848 | !-- Finally, if topography extents up to the model top, limit nzb_max to nzt. |
---|
[3182] | 849 | nzb_max = MIN( nzb_max, nzt ) |
---|
[1] | 850 | ! |
---|
[2968] | 851 | !-- Determine minimum index of topography. Usually, this will be nzb. In case |
---|
| 852 | !-- there is elevated topography, however, the lowest topography will be higher. |
---|
| 853 | !-- This index is e.g. used to calculate mean first-grid point atmosphere |
---|
| 854 | !-- temperature, surface pressure and density, etc. . |
---|
| 855 | topo_min_level = 0 |
---|
| 856 | #if defined( __parallel ) |
---|
| 857 | CALL MPI_ALLREDUCE( MINVAL( get_topography_top_index( 's' ) ), & |
---|
| 858 | topo_min_level, 1, MPI_INTEGER, MPI_MIN, comm2d, ierr ) |
---|
| 859 | #else |
---|
| 860 | topo_min_level = MINVAL( get_topography_top_index( 's' ) ) |
---|
| 861 | #endif |
---|
| 862 | ! |
---|
[2696] | 863 | !-- Initialize boundary conditions via surface type |
---|
| 864 | CALL init_bc |
---|
[3182] | 865 | |
---|
[2696] | 866 | ! |
---|
| 867 | !-- Allocate and set topography height arrays required for data output |
---|
| 868 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 869 | ! |
---|
| 870 | !-- Allocate and set the arrays containing the topography height |
---|
| 871 | IF ( nxr == nx .AND. nyn /= ny ) THEN |
---|
| 872 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn), & |
---|
| 873 | zw_w_inner(nxl:nxr+1,nys:nyn) ) |
---|
| 874 | ELSEIF ( nxr /= nx .AND. nyn == ny ) THEN |
---|
| 875 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn+1), & |
---|
| 876 | zw_w_inner(nxl:nxr,nys:nyn+1) ) |
---|
| 877 | ELSEIF ( nxr == nx .AND. nyn == ny ) THEN |
---|
| 878 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn+1), & |
---|
| 879 | zw_w_inner(nxl:nxr+1,nys:nyn+1) ) |
---|
| 880 | ELSE |
---|
| 881 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn), & |
---|
| 882 | zw_w_inner(nxl:nxr,nys:nyn) ) |
---|
| 883 | ENDIF |
---|
| 884 | |
---|
| 885 | zu_s_inner = 0.0_wp |
---|
| 886 | zw_w_inner = 0.0_wp |
---|
| 887 | ! |
---|
| 888 | !-- Determine local topography height on scalar and w-grid. Note, setting |
---|
| 889 | !-- lateral boundary values is not necessary, realized via wall_flags_0 |
---|
| 890 | !-- array. Further, please note that loop bounds are different from |
---|
| 891 | !-- nxl to nxr and nys to nyn on south and right model boundary, hence, |
---|
| 892 | !-- use intrinsic lbound and ubound functions to infer array bounds. |
---|
| 893 | DO i = LBOUND(zu_s_inner, 1), UBOUND(zu_s_inner, 1) |
---|
| 894 | DO j = LBOUND(zu_s_inner, 2), UBOUND(zu_s_inner, 2) |
---|
| 895 | ! |
---|
| 896 | !-- Topography height on scalar grid. Therefore, determine index of |
---|
| 897 | !-- upward-facing surface element on scalar grid. |
---|
[2698] | 898 | zu_s_inner(i,j) = zu( get_topography_top_index_ji( j, i, 's' ) ) |
---|
[2696] | 899 | ! |
---|
| 900 | !-- Topography height on w grid. Therefore, determine index of |
---|
| 901 | !-- upward-facing surface element on w grid. |
---|
[2698] | 902 | zw_w_inner(i,j) = zw( get_topography_top_index_ji( j, i, 's' ) ) |
---|
[2696] | 903 | ENDDO |
---|
| 904 | ENDDO |
---|
| 905 | ENDIF |
---|
| 906 | |
---|
| 907 | ! |
---|
| 908 | !-- In the following, calculate 2D index arrays. Note, these will be removed |
---|
| 909 | !-- soon. |
---|
[1] | 910 | !-- Allocate outer and inner index arrays for topography and set |
---|
[2232] | 911 | !-- defaults. |
---|
[2696] | 912 | ALLOCATE( nzb_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 913 | nzb_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 914 | nzb_u_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 915 | nzb_u_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 916 | nzb_v_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 917 | nzb_v_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 918 | nzb_w_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 919 | nzb_w_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 920 | nzb_diff_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 921 | nzb_diff_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 922 | nzb_local(nysg:nyng,nxlg:nxrg), & |
---|
| 923 | nzb_tmp(nysg:nyng,nxlg:nxrg) ) |
---|
| 924 | ! |
---|
| 925 | !-- Initialize 2D-index arrays. Note, these will be removed soon! |
---|
| 926 | nzb_local(nys:nyn,nxl:nxr) = get_topography_top_index( 's' ) |
---|
| 927 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[2968] | 928 | ! |
---|
| 929 | !-- Check topography for consistency with model domain. Therefore, use |
---|
| 930 | !-- maximum and minium topography-top indices. Note, minimum topography top |
---|
| 931 | !-- index is already calculated. |
---|
[2696] | 932 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 933 | #if defined( __parallel ) |
---|
| 934 | CALL MPI_ALLREDUCE( MAXVAL( get_topography_top_index( 's' ) ), & |
---|
[3182] | 935 | nzb_local_max, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr ) |
---|
[2696] | 936 | #else |
---|
| 937 | nzb_local_max = MAXVAL( get_topography_top_index( 's' ) ) |
---|
| 938 | #endif |
---|
[2968] | 939 | nzb_local_min = topo_min_level |
---|
[2696] | 940 | ! |
---|
| 941 | !-- Consistency checks |
---|
| 942 | IF ( nzb_local_min < 0 .OR. nzb_local_max > nz + 1 ) THEN |
---|
| 943 | WRITE( message_string, * ) 'nzb_local values are outside the', & |
---|
[3045] | 944 | ' model domain', & |
---|
[3046] | 945 | '&MINVAL( nzb_local ) = ', nzb_local_min, & |
---|
| 946 | '&MAXVAL( nzb_local ) = ', nzb_local_max |
---|
[2696] | 947 | CALL message( 'init_grid', 'PA0210', 1, 2, 0, 6, 0 ) |
---|
| 948 | ENDIF |
---|
| 949 | ENDIF |
---|
[1] | 950 | |
---|
| 951 | nzb_s_inner = nzb; nzb_s_outer = nzb |
---|
| 952 | nzb_u_inner = nzb; nzb_u_outer = nzb |
---|
| 953 | nzb_v_inner = nzb; nzb_v_outer = nzb |
---|
| 954 | nzb_w_inner = nzb; nzb_w_outer = nzb |
---|
| 955 | |
---|
| 956 | ! |
---|
[19] | 957 | !-- Define vertical gridpoint from (or to) which on the usual finite difference |
---|
[1] | 958 | !-- form (which does not use surface fluxes) is applied |
---|
[1691] | 959 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 960 | nzb_diff = nzb + 2 |
---|
| 961 | ELSE |
---|
| 962 | nzb_diff = nzb + 1 |
---|
| 963 | ENDIF |
---|
| 964 | |
---|
| 965 | nzb_diff_s_inner = nzb_diff; nzb_diff_s_outer = nzb_diff |
---|
[2696] | 966 | ! |
---|
| 967 | !-- Set Neumann conditions for topography. Will be removed soon. |
---|
| 968 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 969 | IF ( nys == 0 ) THEN |
---|
[2927] | 970 | DO i = 1, nbgp |
---|
| 971 | nzb_local(nys-i,:) = nzb_local(nys,:) |
---|
| 972 | ENDDO |
---|
[2696] | 973 | ELSEIF ( nyn == ny ) THEN |
---|
[2927] | 974 | DO i = 1, nbgp |
---|
| 975 | nzb_local(ny+i,:) = nzb_local(ny,:) |
---|
| 976 | ENDDO |
---|
[2696] | 977 | ENDIF |
---|
| 978 | ENDIF |
---|
[1] | 979 | |
---|
[2696] | 980 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 981 | IF ( nxl == 0 ) THEN |
---|
[2927] | 982 | DO i = 1, nbgp |
---|
| 983 | nzb_local(:,nxl-i) = nzb_local(:,nxl) |
---|
| 984 | ENDDO |
---|
[2696] | 985 | ELSEIF ( nxr == nx ) THEN |
---|
[2927] | 986 | DO i = 1, nbgp |
---|
| 987 | nzb_local(:,nx+i) = nzb_local(:,nx) |
---|
| 988 | ENDDO |
---|
[2696] | 989 | ENDIF |
---|
| 990 | ENDIF |
---|
[1] | 991 | ! |
---|
[2696] | 992 | !-- Initialization of 2D index arrays, will be removed soon! |
---|
| 993 | !-- Initialize nzb_s_inner and nzb_w_inner |
---|
| 994 | nzb_s_inner = nzb_local |
---|
| 995 | nzb_w_inner = nzb_local |
---|
| 996 | |
---|
| 997 | ! |
---|
| 998 | !-- Initialize remaining index arrays: |
---|
| 999 | !-- first pre-initialize them with nzb_s_inner... |
---|
| 1000 | nzb_u_inner = nzb_s_inner |
---|
| 1001 | nzb_u_outer = nzb_s_inner |
---|
| 1002 | nzb_v_inner = nzb_s_inner |
---|
| 1003 | nzb_v_outer = nzb_s_inner |
---|
| 1004 | nzb_w_outer = nzb_s_inner |
---|
| 1005 | nzb_s_outer = nzb_s_inner |
---|
| 1006 | |
---|
| 1007 | ! |
---|
| 1008 | !-- nzb_s_outer: |
---|
| 1009 | !-- extend nzb_local east-/westwards first, then north-/southwards |
---|
| 1010 | nzb_tmp = nzb_local |
---|
| 1011 | DO j = nys, nyn |
---|
| 1012 | DO i = nxl, nxr |
---|
| 1013 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i), & |
---|
| 1014 | nzb_local(j,i+1) ) |
---|
| 1015 | ENDDO |
---|
| 1016 | ENDDO |
---|
| 1017 | |
---|
| 1018 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1019 | |
---|
| 1020 | DO i = nxl, nxr |
---|
| 1021 | DO j = nys, nyn |
---|
| 1022 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
| 1023 | nzb_tmp(j+1,i) ) |
---|
| 1024 | ENDDO |
---|
| 1025 | ! |
---|
| 1026 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1027 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1028 | IF ( nys == 0 ) THEN |
---|
| 1029 | j = -1 |
---|
| 1030 | nzb_s_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 1031 | ENDIF |
---|
| 1032 | IF ( nyn == ny ) THEN |
---|
| 1033 | j = ny + 1 |
---|
| 1034 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 1035 | ENDIF |
---|
| 1036 | ENDDO |
---|
| 1037 | ! |
---|
| 1038 | !-- nzb_w_outer: |
---|
| 1039 | !-- identical to nzb_s_outer |
---|
| 1040 | nzb_w_outer = nzb_s_outer |
---|
| 1041 | ! |
---|
| 1042 | !-- nzb_u_inner: |
---|
| 1043 | !-- extend nzb_local rightwards only |
---|
| 1044 | nzb_tmp = nzb_local |
---|
| 1045 | DO j = nys, nyn |
---|
| 1046 | DO i = nxl, nxr |
---|
| 1047 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i) ) |
---|
| 1048 | ENDDO |
---|
| 1049 | ENDDO |
---|
| 1050 | |
---|
| 1051 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1052 | |
---|
| 1053 | nzb_u_inner = nzb_tmp |
---|
| 1054 | ! |
---|
| 1055 | !-- nzb_u_outer: |
---|
| 1056 | !-- extend current nzb_tmp (nzb_u_inner) north-/southwards |
---|
| 1057 | DO i = nxl, nxr |
---|
| 1058 | DO j = nys, nyn |
---|
| 1059 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
| 1060 | nzb_tmp(j+1,i) ) |
---|
| 1061 | ENDDO |
---|
| 1062 | ! |
---|
| 1063 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1064 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1065 | IF ( nys == 0 ) THEN |
---|
| 1066 | j = -1 |
---|
| 1067 | nzb_u_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 1068 | ENDIF |
---|
| 1069 | IF ( nyn == ny ) THEN |
---|
| 1070 | j = ny + 1 |
---|
| 1071 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 1072 | ENDIF |
---|
| 1073 | ENDDO |
---|
| 1074 | |
---|
| 1075 | ! |
---|
| 1076 | !-- nzb_v_inner: |
---|
| 1077 | !-- extend nzb_local northwards only |
---|
| 1078 | nzb_tmp = nzb_local |
---|
| 1079 | DO i = nxl, nxr |
---|
| 1080 | DO j = nys, nyn |
---|
| 1081 | nzb_tmp(j,i) = MAX( nzb_local(j-1,i), nzb_local(j,i) ) |
---|
| 1082 | ENDDO |
---|
| 1083 | ENDDO |
---|
| 1084 | |
---|
| 1085 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1086 | nzb_v_inner = nzb_tmp |
---|
| 1087 | |
---|
| 1088 | ! |
---|
| 1089 | !-- nzb_v_outer: |
---|
| 1090 | !-- extend current nzb_tmp (nzb_v_inner) right-/leftwards |
---|
| 1091 | DO j = nys, nyn |
---|
| 1092 | DO i = nxl, nxr |
---|
| 1093 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i), & |
---|
| 1094 | nzb_tmp(j,i+1) ) |
---|
| 1095 | ENDDO |
---|
| 1096 | ! |
---|
| 1097 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1098 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1099 | IF ( nxl == 0 ) THEN |
---|
| 1100 | i = -1 |
---|
| 1101 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i+1), nzb_tmp(j,i) ) |
---|
| 1102 | ENDIF |
---|
| 1103 | IF ( nxr == nx ) THEN |
---|
| 1104 | i = nx + 1 |
---|
| 1105 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i) ) |
---|
| 1106 | ENDIF |
---|
| 1107 | ENDDO |
---|
| 1108 | |
---|
| 1109 | ! |
---|
| 1110 | !-- Exchange of lateral boundary values (parallel computers) and cyclic |
---|
| 1111 | !-- boundary conditions, if applicable. |
---|
| 1112 | !-- Since nzb_s_inner and nzb_w_inner are derived directly from nzb_local |
---|
| 1113 | !-- they do not require exchange and are not included here. |
---|
| 1114 | CALL exchange_horiz_2d_int( nzb_u_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1115 | CALL exchange_horiz_2d_int( nzb_u_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1116 | CALL exchange_horiz_2d_int( nzb_v_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1117 | CALL exchange_horiz_2d_int( nzb_v_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1118 | CALL exchange_horiz_2d_int( nzb_w_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1119 | CALL exchange_horiz_2d_int( nzb_s_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1120 | |
---|
| 1121 | ! |
---|
| 1122 | !-- Set the individual index arrays which define the k index from which on |
---|
| 1123 | !-- the usual finite difference form (which does not use surface fluxes) is |
---|
| 1124 | !-- applied |
---|
| 1125 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 1126 | nzb_diff_s_inner = nzb_s_inner + 2 |
---|
| 1127 | nzb_diff_s_outer = nzb_s_outer + 2 |
---|
| 1128 | ELSE |
---|
| 1129 | nzb_diff_s_inner = nzb_s_inner + 1 |
---|
| 1130 | nzb_diff_s_outer = nzb_s_outer + 1 |
---|
| 1131 | ENDIF |
---|
| 1132 | ! |
---|
| 1133 | !-- Vertical nesting: communicate vertical grid level arrays between fine and |
---|
| 1134 | !-- coarse grid |
---|
| 1135 | IF ( vnested ) CALL vnest_init_grid |
---|
| 1136 | |
---|
| 1137 | END SUBROUTINE init_grid |
---|
| 1138 | |
---|
[3065] | 1139 | |
---|
[2696] | 1140 | ! Description: |
---|
| 1141 | ! -----------------------------------------------------------------------------! |
---|
[3065] | 1142 | !> Calculation of the stretching factor through an iterative method. Ideas were |
---|
| 1143 | !> taken from the paper "Regional stretched grid generation and its application |
---|
| 1144 | !> to the NCAR RegCM (1999)". Normally, no analytic solution exists because the |
---|
| 1145 | !> system of equations has two variables (r,l) but four requirements |
---|
| 1146 | !> (l=integer, r=[0,88;1,2], Eq(6), Eq(5) starting from index j=1) which |
---|
| 1147 | !> results into an overdetermined system. |
---|
| 1148 | !------------------------------------------------------------------------------! |
---|
| 1149 | SUBROUTINE calculate_stretching_factor( number_end ) |
---|
| 1150 | |
---|
| 1151 | USE control_parameters, & |
---|
[3241] | 1152 | ONLY: dz, dz_stretch_factor_array, & |
---|
[3065] | 1153 | dz_stretch_level_end, dz_stretch_level_start, message_string |
---|
| 1154 | |
---|
| 1155 | USE kinds |
---|
| 1156 | |
---|
| 1157 | IMPLICIT NONE |
---|
| 1158 | |
---|
| 1159 | INTEGER(iwp) :: iterations !< number of iterations until stretch_factor_lower/upper_limit is reached |
---|
| 1160 | INTEGER(iwp) :: l_rounded !< after l_rounded grid levels dz(n) is strechted to dz(n+1) with stretch_factor_2 |
---|
| 1161 | INTEGER(iwp) :: n !< loop variable for stretching |
---|
| 1162 | |
---|
| 1163 | INTEGER(iwp), INTENT(IN) :: number_end !< number of user-specified end levels for stretching |
---|
| 1164 | |
---|
| 1165 | REAL(wp) :: delta_l !< absolute difference between l and l_rounded |
---|
| 1166 | REAL(wp) :: delta_stretch_factor !< absolute difference between stretch_factor_1 and stretch_factor_2 |
---|
| 1167 | REAL(wp) :: delta_total_new !< sum of delta_l and delta_stretch_factor for the next iteration (should be as small as possible) |
---|
| 1168 | REAL(wp) :: delta_total_old !< sum of delta_l and delta_stretch_factor for the last iteration |
---|
| 1169 | REAL(wp) :: distance !< distance between dz_stretch_level_start and dz_stretch_level_end (stretching region) |
---|
| 1170 | REAL(wp) :: l !< value that fulfil Eq. (5) in the paper mentioned above together with stretch_factor_1 exactly |
---|
| 1171 | REAL(wp) :: numerator !< numerator of the quotient |
---|
| 1172 | REAL(wp) :: stretch_factor_1 !< stretching factor that fulfil Eq. (5) togehter with l exactly |
---|
| 1173 | REAL(wp) :: stretch_factor_2 !< stretching factor that fulfil Eq. (6) togehter with l_rounded exactly |
---|
| 1174 | |
---|
[3068] | 1175 | REAL(wp) :: dz_stretch_factor_array_2(9) = 1.08_wp !< Array that contains all stretch_factor_2 that belongs to stretch_factor_1 |
---|
| 1176 | |
---|
[3065] | 1177 | REAL(wp), PARAMETER :: stretch_factor_interval = 1.0E-06 !< interval for sampling possible stretching factors |
---|
| 1178 | REAL(wp), PARAMETER :: stretch_factor_lower_limit = 0.88 !< lowest possible stretching factor |
---|
| 1179 | REAL(wp), PARAMETER :: stretch_factor_upper_limit = 1.12 !< highest possible stretching factor |
---|
| 1180 | |
---|
| 1181 | |
---|
[3068] | 1182 | l = 0 |
---|
| 1183 | DO n = 1, number_end |
---|
| 1184 | |
---|
| 1185 | iterations = 1 |
---|
| 1186 | stretch_factor_1 = 1.0 |
---|
| 1187 | stretch_factor_2 = 1.0 |
---|
| 1188 | delta_total_old = 1.0 |
---|
[3065] | 1189 | |
---|
[3068] | 1190 | IF ( dz(n) > dz(n+1) ) THEN |
---|
| 1191 | DO WHILE ( stretch_factor_1 >= stretch_factor_lower_limit ) |
---|
| 1192 | |
---|
| 1193 | stretch_factor_1 = 1.0 - iterations * stretch_factor_interval |
---|
| 1194 | distance = ABS( dz_stretch_level_end(n) - & |
---|
| 1195 | dz_stretch_level_start(n) ) |
---|
| 1196 | numerator = distance*stretch_factor_1/dz(n) + & |
---|
| 1197 | stretch_factor_1 - distance/dz(n) |
---|
| 1198 | |
---|
| 1199 | IF ( numerator > 0.0 ) THEN |
---|
| 1200 | l = LOG( numerator ) / LOG( stretch_factor_1 ) - 1.0 |
---|
| 1201 | l_rounded = NINT( l ) |
---|
| 1202 | delta_l = ABS( l_rounded - l ) / l |
---|
| 1203 | ENDIF |
---|
| 1204 | |
---|
| 1205 | stretch_factor_2 = EXP( LOG( dz(n+1)/dz(n) ) / (l_rounded) ) |
---|
| 1206 | |
---|
| 1207 | delta_stretch_factor = ABS( stretch_factor_1 - & |
---|
| 1208 | stretch_factor_2 ) / & |
---|
| 1209 | stretch_factor_2 |
---|
| 1210 | |
---|
| 1211 | delta_total_new = delta_l + delta_stretch_factor |
---|
[3065] | 1212 | |
---|
| 1213 | ! |
---|
| 1214 | !-- stretch_factor_1 is taken to guarantee that the stretching |
---|
| 1215 | !-- procedure ends as close as possible to dz_stretch_level_end. |
---|
| 1216 | !-- stretch_factor_2 would guarantee that the stretched dz(n) is |
---|
| 1217 | !-- equal to dz(n+1) after l_rounded grid levels. |
---|
[3068] | 1218 | IF (delta_total_new < delta_total_old) THEN |
---|
| 1219 | dz_stretch_factor_array(n) = stretch_factor_1 |
---|
| 1220 | dz_stretch_factor_array_2(n) = stretch_factor_2 |
---|
| 1221 | delta_total_old = delta_total_new |
---|
| 1222 | ENDIF |
---|
| 1223 | |
---|
| 1224 | iterations = iterations + 1 |
---|
| 1225 | |
---|
| 1226 | ENDDO |
---|
| 1227 | |
---|
| 1228 | ELSEIF ( dz(n) < dz(n+1) ) THEN |
---|
| 1229 | DO WHILE ( stretch_factor_1 <= stretch_factor_upper_limit ) |
---|
| 1230 | |
---|
| 1231 | stretch_factor_1 = 1.0 + iterations * stretch_factor_interval |
---|
| 1232 | distance = ABS( dz_stretch_level_end(n) - & |
---|
| 1233 | dz_stretch_level_start(n) ) |
---|
| 1234 | numerator = distance*stretch_factor_1/dz(n) + & |
---|
| 1235 | stretch_factor_1 - distance/dz(n) |
---|
| 1236 | |
---|
| 1237 | l = LOG( numerator ) / LOG( stretch_factor_1 ) - 1.0 |
---|
| 1238 | l_rounded = NINT( l ) |
---|
| 1239 | delta_l = ABS( l_rounded - l ) / l |
---|
| 1240 | |
---|
| 1241 | stretch_factor_2 = EXP( LOG( dz(n+1)/dz(n) ) / (l_rounded) ) |
---|
[3065] | 1242 | |
---|
[3068] | 1243 | delta_stretch_factor = ABS( stretch_factor_1 - & |
---|
| 1244 | stretch_factor_2 ) / & |
---|
| 1245 | stretch_factor_2 |
---|
| 1246 | |
---|
| 1247 | delta_total_new = delta_l + delta_stretch_factor |
---|
| 1248 | |
---|
[3065] | 1249 | ! |
---|
| 1250 | !-- stretch_factor_1 is taken to guarantee that the stretching |
---|
| 1251 | !-- procedure ends as close as possible to dz_stretch_level_end. |
---|
| 1252 | !-- stretch_factor_2 would guarantee that the stretched dz(n) is |
---|
| 1253 | !-- equal to dz(n+1) after l_rounded grid levels. |
---|
[3068] | 1254 | IF (delta_total_new < delta_total_old) THEN |
---|
| 1255 | dz_stretch_factor_array(n) = stretch_factor_1 |
---|
| 1256 | dz_stretch_factor_array_2(n) = stretch_factor_2 |
---|
| 1257 | delta_total_old = delta_total_new |
---|
| 1258 | ENDIF |
---|
[3065] | 1259 | |
---|
[3068] | 1260 | iterations = iterations + 1 |
---|
| 1261 | ENDDO |
---|
| 1262 | |
---|
| 1263 | ELSE |
---|
| 1264 | message_string= 'Two adjacent values of dz must be different' |
---|
| 1265 | CALL message( 'init_grid', 'PA0228', 1, 2, 0, 6, 0 ) |
---|
| 1266 | |
---|
| 1267 | ENDIF |
---|
| 1268 | |
---|
| 1269 | ! |
---|
| 1270 | !-- Check if also the second stretching factor fits into the allowed |
---|
| 1271 | !-- interval. If not, print a warning for the user. |
---|
| 1272 | IF ( dz_stretch_factor_array_2(n) < stretch_factor_lower_limit .OR. & |
---|
| 1273 | dz_stretch_factor_array_2(n) > stretch_factor_upper_limit ) THEN |
---|
| 1274 | WRITE( message_string, * ) 'stretch_factor_2 = ', & |
---|
| 1275 | dz_stretch_factor_array_2(n), ' which is',& |
---|
| 1276 | ' responsible for exactly reaching& dz =',& |
---|
| 1277 | dz(n+1), 'after a specific amount of', & |
---|
| 1278 | ' grid levels& exceeds the upper', & |
---|
| 1279 | ' limit =', stretch_factor_upper_limit, & |
---|
| 1280 | ' &or lower limit = ', & |
---|
| 1281 | stretch_factor_lower_limit |
---|
| 1282 | CALL message( 'init_grid', 'PA0499', 0, 1, 0, 6, 0 ) |
---|
| 1283 | |
---|
| 1284 | ENDIF |
---|
| 1285 | ENDDO |
---|
[3065] | 1286 | |
---|
| 1287 | END SUBROUTINE calculate_stretching_factor |
---|
| 1288 | |
---|
| 1289 | |
---|
| 1290 | ! Description: |
---|
| 1291 | ! -----------------------------------------------------------------------------! |
---|
[2696] | 1292 | !> Set temporary topography flags and reference buildings on top of underlying |
---|
| 1293 | !> orography. |
---|
| 1294 | !------------------------------------------------------------------------------! |
---|
| 1295 | SUBROUTINE process_topography( topo_3d ) |
---|
| 1296 | |
---|
| 1297 | USE arrays_3d, & |
---|
[2747] | 1298 | ONLY: zu, zw |
---|
[2696] | 1299 | |
---|
| 1300 | USE control_parameters, & |
---|
[3294] | 1301 | ONLY: bc_lr_cyc, bc_ns_cyc, message_string, ocean_mode |
---|
[2696] | 1302 | |
---|
| 1303 | USE indices, & |
---|
| 1304 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nzb, & |
---|
| 1305 | nzt |
---|
| 1306 | |
---|
| 1307 | USE netcdf_data_input_mod, & |
---|
[3115] | 1308 | ONLY: buildings_f, building_id_f, building_type_f, input_pids_static, & |
---|
[2696] | 1309 | terrain_height_f |
---|
| 1310 | |
---|
| 1311 | USE kinds |
---|
| 1312 | |
---|
| 1313 | USE pegrid |
---|
| 1314 | |
---|
| 1315 | IMPLICIT NONE |
---|
| 1316 | |
---|
[2867] | 1317 | INTEGER(iwp) :: i !< running index along x-direction |
---|
| 1318 | INTEGER(iwp) :: j !< running index along y-direction |
---|
| 1319 | INTEGER(iwp) :: k !< running index along z-direction with respect to numeric grid |
---|
| 1320 | INTEGER(iwp) :: k2 !< running index along z-direction with respect to netcdf grid |
---|
| 1321 | INTEGER(iwp) :: nr !< index variable indication maximum terrain height for respective building ID |
---|
| 1322 | INTEGER(iwp) :: num_build !< counter for number of buildings |
---|
| 1323 | INTEGER(iwp) :: topo_top_index !< orography top index, used to map 3D buildings onto terrain |
---|
[2696] | 1324 | |
---|
| 1325 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: displace_dum !< displacements of start addresses, used for MPI_ALLGATHERV |
---|
| 1326 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids !< building IDs on entire model domain |
---|
| 1327 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_final !< building IDs on entire model domain, multiple occurences are sorted out |
---|
| 1328 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_final_tmp !< temporary array used for resizing |
---|
| 1329 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_l !< building IDs on local subdomain |
---|
| 1330 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: build_ids_l_tmp !< temporary array used to resize array of building IDs |
---|
| 1331 | |
---|
| 1332 | INTEGER(iwp), DIMENSION(0:numprocs-1) :: num_buildings !< number of buildings with different ID on entire model domain |
---|
| 1333 | INTEGER(iwp), DIMENSION(0:numprocs-1) :: num_buildings_l !< number of buildings with different ID on local subdomain |
---|
| 1334 | |
---|
| 1335 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo_3d !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
| 1336 | |
---|
| 1337 | REAL(wp) :: ocean_offset !< offset to consider inverse vertical coordinate at topography definition |
---|
[3103] | 1338 | REAL(wp) :: oro_min = 0.0_wp !< minimum terrain height in entire model domain, used to reference terrain to zero |
---|
[2696] | 1339 | REAL(wp), DIMENSION(:), ALLOCATABLE :: oro_max !< maximum terrain height occupied by an building with certain id |
---|
| 1340 | REAL(wp), DIMENSION(:), ALLOCATABLE :: oro_max_l !< maximum terrain height occupied by an building with certain id, on local subdomain |
---|
| 1341 | |
---|
[3103] | 1342 | |
---|
[2696] | 1343 | ! |
---|
[3103] | 1344 | !-- Reference lowest terrain height to zero. In case the minimum terrain height |
---|
| 1345 | !-- is non-zero, all grid points of the lower vertical grid levels might be |
---|
| 1346 | !-- entirely below the surface, meaning a waste of computational resources. |
---|
| 1347 | !-- In order to avoid this, remove the lowest terrain height. Please note, |
---|
| 1348 | !-- in case of a nested run, the global minimum from all parent and childs |
---|
| 1349 | !-- need to be remove to avoid steep edges at the child-domain boundaries. |
---|
| 1350 | IF ( input_pids_static ) THEN |
---|
[3200] | 1351 | #if defined( __parallel ) |
---|
[3103] | 1352 | CALL MPI_ALLREDUCE( MINVAL( terrain_height_f%var ), oro_min, 1, & |
---|
| 1353 | MPI_REAL, MPI_MIN, MPI_COMM_WORLD, ierr ) |
---|
[3200] | 1354 | #else |
---|
| 1355 | oro_min = MINVAL( terrain_height_f%var ) |
---|
| 1356 | #endif |
---|
| 1357 | |
---|
[3103] | 1358 | terrain_height_f%var = terrain_height_f%var - oro_min |
---|
| 1359 | ! |
---|
| 1360 | !-- Give an informative message that terrain height is referenced to zero |
---|
| 1361 | IF ( oro_min > 0.0_wp ) THEN |
---|
| 1362 | WRITE( message_string, * ) 'Terrain height was internally shifted '//& |
---|
| 1363 | 'downwards by ', oro_min, 'meter(s) to save ' // & |
---|
| 1364 | 'computational resources.' |
---|
| 1365 | CALL message( 'init_grid', 'PA0505', 0, 0, 0, 6, 0 ) |
---|
| 1366 | ENDIF |
---|
| 1367 | ENDIF |
---|
| 1368 | |
---|
| 1369 | ! |
---|
[2696] | 1370 | !-- In the following, buildings and orography are further preprocessed |
---|
| 1371 | !-- before they are mapped on the LES grid. |
---|
| 1372 | !-- Buildings are mapped on top of the orography by maintaining the roof |
---|
| 1373 | !-- shape of the building. This can be achieved by referencing building on |
---|
| 1374 | !-- top of the maximum terrain height within the area occupied by the |
---|
| 1375 | !-- respective building. As buildings and terrain height are defined PE-wise, |
---|
| 1376 | !-- parallelization of this referencing is required (a building can be |
---|
| 1377 | !-- distributed between different PEs). |
---|
| 1378 | !-- In a first step, determine the number of buildings with different |
---|
| 1379 | !-- building id on each PE. In a next step, all building ids are gathered |
---|
| 1380 | !-- into one array which is present to all PEs. For each building ID, |
---|
| 1381 | !-- the maximum terrain height occupied by the respective building is |
---|
| 1382 | !-- computed and distributed to each PE. |
---|
| 1383 | !-- Finally, for each building id and its respective reference orography, |
---|
| 1384 | !-- builidings are mapped on top. |
---|
| 1385 | !-- |
---|
| 1386 | !-- First, pre-set topography flags, bit 1 indicates orography, bit 2 |
---|
| 1387 | !-- buildings |
---|
| 1388 | !-- classify the respective surfaces. |
---|
| 1389 | topo_3d = IBSET( topo_3d, 0 ) |
---|
| 1390 | topo_3d(nzb,:,:) = IBCLR( topo_3d(nzb,:,:), 0 ) |
---|
| 1391 | ! |
---|
[3051] | 1392 | !-- In order to map topography on PALM grid also in case of ocean simulations, |
---|
| 1393 | !-- pre-calculate an offset value. |
---|
[3294] | 1394 | ocean_offset = MERGE( zw(0), 0.0_wp, ocean_mode ) |
---|
[3051] | 1395 | ! |
---|
[2696] | 1396 | !-- Reference buildings on top of orography. This is not necessary |
---|
| 1397 | !-- if topography is read from ASCII file as no distinction between buildings |
---|
| 1398 | !-- and terrain height can be made. Moreover, this is also not necessary if |
---|
| 1399 | !-- urban-surface and land-surface model are used at the same time. |
---|
[2897] | 1400 | IF ( input_pids_static ) THEN |
---|
| 1401 | |
---|
| 1402 | IF ( buildings_f%from_file ) THEN |
---|
| 1403 | num_buildings_l = 0 |
---|
| 1404 | num_buildings = 0 |
---|
[2696] | 1405 | ! |
---|
[2897] | 1406 | !-- Allocate at least one element for building ids, |
---|
| 1407 | ALLOCATE( build_ids_l(1) ) |
---|
| 1408 | DO i = nxl, nxr |
---|
| 1409 | DO j = nys, nyn |
---|
| 1410 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 1411 | IF ( num_buildings_l(myid) > 0 ) THEN |
---|
| 1412 | IF ( ANY( building_id_f%var(j,i) .EQ. build_ids_l ) ) & |
---|
| 1413 | THEN |
---|
| 1414 | CYCLE |
---|
| 1415 | ELSE |
---|
| 1416 | num_buildings_l(myid) = num_buildings_l(myid) + 1 |
---|
[2696] | 1417 | ! |
---|
| 1418 | !-- Resize array with different local building ids |
---|
| 1419 | ALLOCATE( build_ids_l_tmp(1:SIZE(build_ids_l)) ) |
---|
| 1420 | build_ids_l_tmp = build_ids_l |
---|
| 1421 | DEALLOCATE( build_ids_l ) |
---|
| 1422 | ALLOCATE( build_ids_l(1:num_buildings_l(myid)) ) |
---|
| 1423 | build_ids_l(1:num_buildings_l(myid)-1) = & |
---|
| 1424 | build_ids_l_tmp(1:num_buildings_l(myid)-1) |
---|
| 1425 | build_ids_l(num_buildings_l(myid)) = building_id_f%var(j,i) |
---|
| 1426 | DEALLOCATE( build_ids_l_tmp ) |
---|
| 1427 | ENDIF |
---|
| 1428 | ! |
---|
[2897] | 1429 | !-- First occuring building id on PE |
---|
| 1430 | ELSE |
---|
| 1431 | num_buildings_l(myid) = num_buildings_l(myid) + 1 |
---|
| 1432 | build_ids_l(1) = building_id_f%var(j,i) |
---|
| 1433 | ENDIF |
---|
[2696] | 1434 | ENDIF |
---|
[2897] | 1435 | ENDDO |
---|
[2696] | 1436 | ENDDO |
---|
| 1437 | ! |
---|
[2897] | 1438 | !-- Determine number of different building ids for the entire domain |
---|
[2696] | 1439 | #if defined( __parallel ) |
---|
[2897] | 1440 | CALL MPI_ALLREDUCE( num_buildings_l, num_buildings, numprocs, & |
---|
| 1441 | MPI_INTEGER, MPI_SUM, comm2d, ierr ) |
---|
[2696] | 1442 | #else |
---|
[2897] | 1443 | num_buildings = num_buildings_l |
---|
[2696] | 1444 | #endif |
---|
| 1445 | ! |
---|
[2897] | 1446 | !-- Gather all buildings ids on each PEs. |
---|
| 1447 | !-- First, allocate array encompassing all building ids in model domain. |
---|
| 1448 | ALLOCATE( build_ids(1:SUM(num_buildings)) ) |
---|
[2696] | 1449 | #if defined( __parallel ) |
---|
| 1450 | ! |
---|
[2897] | 1451 | !-- Allocate array for displacements. |
---|
| 1452 | !-- As each PE may has a different number of buildings, so that |
---|
| 1453 | !-- the block sizes send by each PE may not be equal. Hence, |
---|
| 1454 | !-- information about the respective displacement is required, indicating |
---|
| 1455 | !-- the respective adress where each MPI-task writes into the receive |
---|
| 1456 | !-- buffer array |
---|
| 1457 | ALLOCATE( displace_dum(0:numprocs-1) ) |
---|
| 1458 | displace_dum(0) = 0 |
---|
| 1459 | DO i = 1, numprocs-1 |
---|
| 1460 | displace_dum(i) = displace_dum(i-1) + num_buildings(i-1) |
---|
| 1461 | ENDDO |
---|
[2696] | 1462 | |
---|
[2897] | 1463 | CALL MPI_ALLGATHERV( build_ids_l(1:num_buildings_l(myid)), & |
---|
| 1464 | num_buildings(myid), & |
---|
| 1465 | MPI_INTEGER, & |
---|
| 1466 | build_ids, & |
---|
| 1467 | num_buildings, & |
---|
| 1468 | displace_dum, & |
---|
| 1469 | MPI_INTEGER, & |
---|
| 1470 | comm2d, ierr ) |
---|
[2696] | 1471 | |
---|
[2897] | 1472 | DEALLOCATE( displace_dum ) |
---|
[2696] | 1473 | |
---|
| 1474 | #else |
---|
[2897] | 1475 | build_ids = build_ids_l |
---|
[2696] | 1476 | #endif |
---|
| 1477 | |
---|
| 1478 | ! |
---|
[2897] | 1479 | !-- Note, in parallel mode building ids can occure mutliple times, as |
---|
| 1480 | !-- each PE has send its own ids. Therefore, sort out building ids which |
---|
| 1481 | !-- appear more than one time. |
---|
| 1482 | num_build = 0 |
---|
| 1483 | DO nr = 1, SIZE(build_ids) |
---|
[2696] | 1484 | |
---|
[2897] | 1485 | IF ( ALLOCATED(build_ids_final) ) THEN |
---|
| 1486 | IF ( ANY( build_ids(nr) .EQ. build_ids_final ) ) THEN |
---|
| 1487 | CYCLE |
---|
| 1488 | ELSE |
---|
| 1489 | num_build = num_build + 1 |
---|
| 1490 | ! |
---|
| 1491 | !-- Resize |
---|
| 1492 | ALLOCATE( build_ids_final_tmp(1:num_build) ) |
---|
| 1493 | build_ids_final_tmp(1:num_build-1) = build_ids_final(1:num_build-1) |
---|
| 1494 | DEALLOCATE( build_ids_final ) |
---|
| 1495 | ALLOCATE( build_ids_final(1:num_build) ) |
---|
| 1496 | build_ids_final(1:num_build-1) = build_ids_final_tmp(1:num_build-1) |
---|
| 1497 | build_ids_final(num_build) = build_ids(nr) |
---|
| 1498 | DEALLOCATE( build_ids_final_tmp ) |
---|
| 1499 | ENDIF |
---|
[2696] | 1500 | ELSE |
---|
| 1501 | num_build = num_build + 1 |
---|
| 1502 | ALLOCATE( build_ids_final(1:num_build) ) |
---|
| 1503 | build_ids_final(num_build) = build_ids(nr) |
---|
[2897] | 1504 | ENDIF |
---|
| 1505 | ENDDO |
---|
[2696] | 1506 | |
---|
| 1507 | ! |
---|
[3051] | 1508 | !-- Determine maximumum terrain height occupied by the respective |
---|
| 1509 | !-- building and temporalily store on oro_max |
---|
[2897] | 1510 | ALLOCATE( oro_max_l(1:SIZE(build_ids_final)) ) |
---|
| 1511 | ALLOCATE( oro_max(1:SIZE(build_ids_final)) ) |
---|
| 1512 | oro_max_l = 0.0_wp |
---|
[2696] | 1513 | |
---|
[2897] | 1514 | DO nr = 1, SIZE(build_ids_final) |
---|
| 1515 | oro_max_l(nr) = MAXVAL( & |
---|
| 1516 | MERGE( terrain_height_f%var, 0.0_wp, & |
---|
| 1517 | building_id_f%var(nys:nyn,nxl:nxr) .EQ. & |
---|
| 1518 | build_ids_final(nr) ) ) |
---|
| 1519 | ENDDO |
---|
[2696] | 1520 | |
---|
| 1521 | #if defined( __parallel ) |
---|
[2897] | 1522 | IF ( SIZE(build_ids_final) >= 1 ) THEN |
---|
| 1523 | CALL MPI_ALLREDUCE( oro_max_l, oro_max, SIZE( oro_max ), MPI_REAL, & |
---|
| 1524 | MPI_MAX, comm2d, ierr ) |
---|
| 1525 | ENDIF |
---|
[2696] | 1526 | #else |
---|
[2897] | 1527 | oro_max = oro_max_l |
---|
[2696] | 1528 | #endif |
---|
[3051] | 1529 | ! |
---|
| 1530 | !-- Finally, determine discrete grid height of maximum orography occupied |
---|
| 1531 | !-- by a building. Use all-or-nothing approach, i.e. a grid box is either |
---|
| 1532 | oro_max_l = 0.0 |
---|
| 1533 | DO nr = 1, SIZE(build_ids_final) |
---|
| 1534 | DO k = nzb, nzt |
---|
| 1535 | IF ( zu(k) - ocean_offset <= oro_max(nr) ) & |
---|
[3142] | 1536 | oro_max_l(nr) = zw(k) - ocean_offset |
---|
[3051] | 1537 | ENDDO |
---|
[3142] | 1538 | oro_max(nr) = oro_max_l(nr) |
---|
[3051] | 1539 | ENDDO |
---|
[2897] | 1540 | ENDIF |
---|
[2696] | 1541 | ! |
---|
[2867] | 1542 | !-- Map orography as well as buildings onto grid. |
---|
[2696] | 1543 | DO i = nxl, nxr |
---|
| 1544 | DO j = nys, nyn |
---|
[2867] | 1545 | topo_top_index = 0 |
---|
[3142] | 1546 | ! |
---|
| 1547 | !-- Obtain index in global building_id array |
---|
| 1548 | IF ( buildings_f%from_file ) THEN |
---|
| 1549 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 1550 | ! |
---|
| 1551 | !-- Determine index where maximum terrain height occupied by |
---|
| 1552 | !-- the respective building height is stored. |
---|
| 1553 | nr = MINLOC( ABS( build_ids_final - & |
---|
| 1554 | building_id_f%var(j,i) ), DIM = 1 ) |
---|
| 1555 | ENDIF |
---|
| 1556 | ENDIF |
---|
[2696] | 1557 | DO k = nzb, nzt |
---|
| 1558 | ! |
---|
| 1559 | !-- In a first step, if grid point is below or equal the given |
---|
| 1560 | !-- terrain height, grid point is flagged to be of type natural. |
---|
| 1561 | !-- Please note, in case there is also a building which is lower |
---|
| 1562 | !-- than the vertical grid spacing, initialization of surface |
---|
| 1563 | !-- attributes will not be correct as given surface information |
---|
| 1564 | !-- will not be in accordance to the classified grid points. |
---|
| 1565 | !-- Hence, in this case, de-flag the grid point and give it |
---|
| 1566 | !-- urban type instead. |
---|
[2747] | 1567 | IF ( zu(k) - ocean_offset <= terrain_height_f%var(j,i) ) THEN |
---|
[2696] | 1568 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
[2867] | 1569 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 1 ) |
---|
[3051] | 1570 | topo_top_index = k ! topo_top_index + 1 |
---|
[2696] | 1571 | ENDIF |
---|
| 1572 | ! |
---|
| 1573 | !-- Set building grid points. Here, only consider 2D buildings. |
---|
| 1574 | !-- 3D buildings require separate treatment. |
---|
[2897] | 1575 | IF ( buildings_f%from_file .AND. buildings_f%lod == 1 ) THEN |
---|
[3142] | 1576 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
[2747] | 1577 | IF ( zu(k) - ocean_offset <= & |
---|
[2696] | 1578 | oro_max(nr) + buildings_f%var_2d(j,i) ) THEN |
---|
| 1579 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1580 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1581 | ! |
---|
| 1582 | !-- De-flag grid point of type natural. See comment above. |
---|
| 1583 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 1 ) |
---|
| 1584 | ENDIF |
---|
| 1585 | ENDIF |
---|
| 1586 | ENDIF |
---|
| 1587 | ENDDO |
---|
| 1588 | ! |
---|
| 1589 | !-- Map 3D buildings onto terrain height. |
---|
[2867] | 1590 | !-- In case of any slopes, map building on top of maximum terrain |
---|
| 1591 | !-- height covered by the building. In other words, extend |
---|
| 1592 | !-- building down to the respective local terrain-surface height. |
---|
[2897] | 1593 | IF ( buildings_f%from_file .AND. buildings_f%lod == 2 ) THEN |
---|
[2696] | 1594 | IF ( building_id_f%var(j,i) /= building_id_f%fill ) THEN |
---|
| 1595 | ! |
---|
[3051] | 1596 | !-- Extend building down to the terrain surface, i.e. fill-up |
---|
| 1597 | !-- surface irregularities below a building. Note, oro_max |
---|
| 1598 | !-- is already a discrete height according to the all-or-nothing |
---|
| 1599 | !-- approach, i.e. grid box is either topography or atmosphere, |
---|
| 1600 | !-- terrain top is defined at upper bound of the grid box. |
---|
| 1601 | !-- Hence, check for zw in this case. |
---|
[3115] | 1602 | !-- Note, do this only for buildings which are surface mounted, |
---|
| 1603 | !-- i.e. building types 1-6. Below bridges, which are represented |
---|
| 1604 | !-- exclusively by building type 7, terrain shape should be |
---|
| 1605 | !-- maintained. |
---|
| 1606 | IF ( building_type_f%var(j,i) /= 7 ) THEN |
---|
| 1607 | DO k = topo_top_index + 1, nzt + 1 |
---|
| 1608 | IF ( zw(k) - ocean_offset <= oro_max(nr) ) THEN |
---|
| 1609 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1610 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1611 | ENDIF |
---|
| 1612 | ENDDO |
---|
[2867] | 1613 | ! |
---|
[3115] | 1614 | !-- After surface irregularities are smoothen, determine lower |
---|
| 1615 | !-- start index where building starts. |
---|
| 1616 | DO k = nzb, nzt |
---|
| 1617 | IF ( zw(k) - ocean_offset <= oro_max(nr) ) & |
---|
| 1618 | topo_top_index = k |
---|
| 1619 | ENDDO |
---|
| 1620 | ENDIF |
---|
[3051] | 1621 | ! |
---|
| 1622 | !-- Finally, map building on top. |
---|
[2867] | 1623 | k2 = 0 |
---|
| 1624 | DO k = topo_top_index, nzt + 1 |
---|
[2796] | 1625 | IF ( k2 <= buildings_f%nz-1 ) THEN |
---|
[2696] | 1626 | IF ( buildings_f%var_3d(k2,j,i) == 1 ) THEN |
---|
| 1627 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
[2867] | 1628 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 1 ) |
---|
[2696] | 1629 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1630 | ENDIF |
---|
| 1631 | ENDIF |
---|
| 1632 | k2 = k2 + 1 |
---|
| 1633 | ENDDO |
---|
| 1634 | ENDIF |
---|
| 1635 | ENDIF |
---|
| 1636 | ENDDO |
---|
| 1637 | ENDDO |
---|
| 1638 | ! |
---|
| 1639 | !-- Deallocate temporary arrays required for processing and reading data |
---|
| 1640 | IF ( ALLOCATED( oro_max ) ) DEALLOCATE( oro_max ) |
---|
| 1641 | IF ( ALLOCATED( oro_max_l ) ) DEALLOCATE( oro_max_l ) |
---|
| 1642 | IF ( ALLOCATED( build_ids_final ) ) DEALLOCATE( build_ids_final ) |
---|
| 1643 | ! |
---|
| 1644 | !-- Topography input via ASCII format. |
---|
| 1645 | ELSE |
---|
[3294] | 1646 | ocean_offset = MERGE( zw(0), 0.0_wp, ocean_mode ) |
---|
[2696] | 1647 | topo_3d = IBSET( topo_3d, 0 ) |
---|
| 1648 | topo_3d(nzb,:,:) = IBCLR( topo_3d(nzb,:,:), 0 ) |
---|
| 1649 | DO i = nxl, nxr |
---|
| 1650 | DO j = nys, nyn |
---|
| 1651 | DO k = nzb, nzt |
---|
[3538] | 1652 | ! |
---|
| 1653 | !-- Flag topography for all grid points which are below |
---|
| 1654 | !-- the local topography height. |
---|
| 1655 | !-- Note, each topography is flagged as building. |
---|
[2747] | 1656 | IF ( zu(k) - ocean_offset <= buildings_f%var_2d(j,i) ) THEN |
---|
[2696] | 1657 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
[3538] | 1658 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) !indicates building |
---|
[2696] | 1659 | ENDIF |
---|
| 1660 | ENDDO |
---|
| 1661 | ENDDO |
---|
| 1662 | ENDDO |
---|
| 1663 | ENDIF |
---|
| 1664 | |
---|
| 1665 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
| 1666 | |
---|
| 1667 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1668 | IF ( nys == 0 ) topo_3d(:,-1,:) = topo_3d(:,0,:) |
---|
| 1669 | IF ( nyn == ny ) topo_3d(:,ny+1,:) = topo_3d(:,ny,:) |
---|
| 1670 | ENDIF |
---|
| 1671 | |
---|
| 1672 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1673 | IF ( nxl == 0 ) topo_3d(:,:,-1) = topo_3d(:,:,0) |
---|
| 1674 | IF ( nxr == nx ) topo_3d(:,:,nx+1) = topo_3d(:,:,nx) |
---|
| 1675 | ENDIF |
---|
| 1676 | |
---|
| 1677 | END SUBROUTINE process_topography |
---|
| 1678 | |
---|
| 1679 | |
---|
| 1680 | ! Description: |
---|
| 1681 | ! -----------------------------------------------------------------------------! |
---|
| 1682 | !> Filter topography, i.e. fill holes resolved by only one grid point. |
---|
| 1683 | !> Such holes are suspected to lead to velocity blow-ups as continuity |
---|
| 1684 | !> equation on discrete grid cannot be fulfilled in such case. |
---|
| 1685 | !------------------------------------------------------------------------------! |
---|
| 1686 | SUBROUTINE filter_topography( topo_3d ) |
---|
| 1687 | |
---|
| 1688 | USE control_parameters, & |
---|
| 1689 | ONLY: bc_lr_cyc, bc_ns_cyc, message_string |
---|
| 1690 | |
---|
| 1691 | USE indices, & |
---|
| 1692 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nzb, nzt |
---|
| 1693 | |
---|
| 1694 | USE netcdf_data_input_mod, & |
---|
| 1695 | ONLY: building_id_f, building_type_f |
---|
| 1696 | |
---|
| 1697 | USE pegrid |
---|
| 1698 | |
---|
| 1699 | IMPLICIT NONE |
---|
| 1700 | |
---|
[2893] | 1701 | LOGICAL :: filled = .FALSE. !< flag indicating if holes were filled |
---|
| 1702 | |
---|
[2696] | 1703 | INTEGER(iwp) :: i !< running index along x-direction |
---|
| 1704 | INTEGER(iwp) :: j !< running index along y-direction |
---|
| 1705 | INTEGER(iwp) :: k !< running index along z-direction |
---|
| 1706 | INTEGER(iwp) :: num_hole !< number of holes (in topography) resolved by only one grid point |
---|
| 1707 | INTEGER(iwp) :: num_hole_l !< number of holes (in topography) resolved by only one grid point on local PE |
---|
| 1708 | INTEGER(iwp) :: num_wall !< number of surrounding vertical walls for a single grid point |
---|
| 1709 | |
---|
[2955] | 1710 | INTEGER(iwp), DIMENSION(nysg:nyng,nxlg:nxrg) :: var_exchange_int !< dummy array for exchanging ghost-points |
---|
| 1711 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo_tmp !< temporary 3D-topography used to fill holes |
---|
| 1712 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo_3d !< 3D-topography array merging buildings and orography |
---|
[2696] | 1713 | ! |
---|
| 1714 | !-- Before checking for holes, set lateral boundary conditions for |
---|
| 1715 | !-- topography. After hole-filling, boundary conditions must be set again. |
---|
| 1716 | !-- Several iterations are performed, in order to fill holes which might |
---|
| 1717 | !-- emerge by the filling-algorithm itself. |
---|
| 1718 | ALLOCATE( topo_tmp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 1719 | topo_tmp = 0 |
---|
| 1720 | |
---|
| 1721 | num_hole = 99999 |
---|
| 1722 | DO WHILE ( num_hole > 0 ) |
---|
| 1723 | |
---|
| 1724 | num_hole = 0 |
---|
| 1725 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2955] | 1726 | ! |
---|
| 1727 | !-- Exchange also building ID and type. Note, building_type is an one-byte |
---|
| 1728 | !-- variable. |
---|
| 1729 | IF ( building_id_f%from_file ) & |
---|
| 1730 | CALL exchange_horiz_2d_int( building_id_f%var, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1731 | IF ( building_type_f%from_file ) THEN |
---|
| 1732 | var_exchange_int = INT( building_type_f%var, KIND = 4 ) |
---|
| 1733 | CALL exchange_horiz_2d_int( var_exchange_int, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1734 | building_type_f%var = INT( var_exchange_int, KIND = 1 ) |
---|
| 1735 | ENDIF |
---|
[2696] | 1736 | |
---|
| 1737 | topo_tmp = topo_3d |
---|
| 1738 | ! |
---|
| 1739 | !-- In case of non-cyclic lateral boundaries, assume lateral boundary to be |
---|
| 1740 | !-- a solid wall. Thus, intermediate spaces of one grid point between |
---|
| 1741 | !-- boundary and some topographic structure will be filled. |
---|
| 1742 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1743 | IF ( nys == 0 ) topo_tmp(:,-1,:) = IBCLR( topo_tmp(:,0,:), 0 ) |
---|
| 1744 | IF ( nyn == ny ) topo_tmp(:,ny+1,:) = IBCLR( topo_tmp(:,ny,:), 0 ) |
---|
| 1745 | ENDIF |
---|
| 1746 | |
---|
| 1747 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1748 | IF ( nxl == 0 ) topo_tmp(:,:,-1) = IBCLR( topo_tmp(:,:,0), 0 ) |
---|
| 1749 | IF ( nxr == nx ) topo_tmp(:,:,nx+1) = IBCLR( topo_tmp(:,:,nx), 0 ) |
---|
| 1750 | ENDIF |
---|
| 1751 | |
---|
| 1752 | num_hole_l = 0 |
---|
| 1753 | DO i = nxl, nxr |
---|
| 1754 | DO j = nys, nyn |
---|
| 1755 | DO k = nzb+1, nzt |
---|
| 1756 | IF ( BTEST( topo_tmp(k,j,i), 0 ) ) THEN |
---|
| 1757 | num_wall = 0 |
---|
| 1758 | IF ( .NOT. BTEST( topo_tmp(k,j-1,i), 0 ) ) & |
---|
| 1759 | num_wall = num_wall + 1 |
---|
| 1760 | IF ( .NOT. BTEST( topo_tmp(k,j+1,i), 0 ) ) & |
---|
| 1761 | num_wall = num_wall + 1 |
---|
| 1762 | IF ( .NOT. BTEST( topo_tmp(k,j,i-1), 0 ) ) & |
---|
| 1763 | num_wall = num_wall + 1 |
---|
| 1764 | IF ( .NOT. BTEST( topo_tmp(k,j,i+1), 0 ) ) & |
---|
| 1765 | num_wall = num_wall + 1 |
---|
| 1766 | IF ( .NOT. BTEST( topo_tmp(k-1,j,i), 0 ) ) & |
---|
| 1767 | num_wall = num_wall + 1 |
---|
| 1768 | IF ( .NOT. BTEST( topo_tmp(k+1,j,i), 0 ) ) & |
---|
| 1769 | num_wall = num_wall + 1 |
---|
| 1770 | |
---|
| 1771 | IF ( num_wall >= 4 ) THEN |
---|
| 1772 | num_hole_l = num_hole_l + 1 |
---|
| 1773 | ! |
---|
| 1774 | !-- Clear flag 0 and set special flag ( bit 3) to indicate |
---|
| 1775 | !-- that new topography point is a result of filtering process. |
---|
| 1776 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 1777 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 3 ) |
---|
| 1778 | ! |
---|
| 1779 | !-- If filled grid point is occupied by a building, classify |
---|
| 1780 | !-- it as building grid point. |
---|
| 1781 | IF ( building_type_f%from_file ) THEN |
---|
| 1782 | IF ( building_type_f%var(j,i) /= & |
---|
| 1783 | building_type_f%fill .OR. & |
---|
| 1784 | building_type_f%var(j+1,i) /= & |
---|
| 1785 | building_type_f%fill .OR. & |
---|
| 1786 | building_type_f%var(j-1,i) /= & |
---|
| 1787 | building_type_f%fill .OR. & |
---|
| 1788 | building_type_f%var(j,i+1) /= & |
---|
| 1789 | building_type_f%fill .OR. & |
---|
| 1790 | building_type_f%var(j,i-1) /= & |
---|
| 1791 | building_type_f%fill ) THEN |
---|
| 1792 | ! |
---|
| 1793 | !-- Set flag indicating building surfaces |
---|
| 1794 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 2 ) |
---|
| 1795 | ! |
---|
| 1796 | !-- Set building_type and ID at this position if not |
---|
| 1797 | !-- already set. This is required for proper |
---|
| 1798 | !-- initialization of urban-surface energy balance |
---|
| 1799 | !-- solver. |
---|
| 1800 | IF ( building_type_f%var(j,i) == & |
---|
| 1801 | building_type_f%fill ) THEN |
---|
| 1802 | |
---|
| 1803 | IF ( building_type_f%var(j+1,i) /= & |
---|
| 1804 | building_type_f%fill ) THEN |
---|
| 1805 | building_type_f%var(j,i) = & |
---|
| 1806 | building_type_f%var(j+1,i) |
---|
| 1807 | building_id_f%var(j,i) = & |
---|
| 1808 | building_id_f%var(j+1,i) |
---|
| 1809 | ELSEIF ( building_type_f%var(j-1,i) /= & |
---|
| 1810 | building_type_f%fill ) THEN |
---|
| 1811 | building_type_f%var(j,i) = & |
---|
| 1812 | building_type_f%var(j-1,i) |
---|
| 1813 | building_id_f%var(j,i) = & |
---|
| 1814 | building_id_f%var(j-1,i) |
---|
| 1815 | ELSEIF ( building_type_f%var(j,i+1) /= & |
---|
| 1816 | building_type_f%fill ) THEN |
---|
| 1817 | building_type_f%var(j,i) = & |
---|
| 1818 | building_type_f%var(j,i+1) |
---|
| 1819 | building_id_f%var(j,i) = & |
---|
| 1820 | building_id_f%var(j,i+1) |
---|
| 1821 | ELSEIF ( building_type_f%var(j,i-1) /= & |
---|
| 1822 | building_type_f%fill ) THEN |
---|
| 1823 | building_type_f%var(j,i) = & |
---|
| 1824 | building_type_f%var(j,i-1) |
---|
| 1825 | building_id_f%var(j,i) = & |
---|
| 1826 | building_id_f%var(j,i-1) |
---|
| 1827 | ENDIF |
---|
| 1828 | ENDIF |
---|
| 1829 | ENDIF |
---|
| 1830 | ENDIF |
---|
| 1831 | ! |
---|
| 1832 | !-- If filled grid point is already classified as building |
---|
| 1833 | !-- everything is fine, else classify this grid point as |
---|
| 1834 | !-- natural type grid point. This case, values for the |
---|
| 1835 | !-- surface type are already set. |
---|
| 1836 | IF ( .NOT. BTEST( topo_3d(k,j,i), 2 ) ) THEN |
---|
| 1837 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 1 ) |
---|
| 1838 | ENDIF |
---|
| 1839 | ENDIF |
---|
| 1840 | ENDIF |
---|
| 1841 | ENDDO |
---|
| 1842 | ENDDO |
---|
| 1843 | ENDDO |
---|
| 1844 | ! |
---|
| 1845 | !-- Count the total number of holes, required for informative message. |
---|
| 1846 | #if defined( __parallel ) |
---|
| 1847 | CALL MPI_ALLREDUCE( num_hole_l, num_hole, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 1848 | comm2d, ierr ) |
---|
| 1849 | #else |
---|
| 1850 | num_hole = num_hole_l |
---|
| 1851 | #endif |
---|
[2893] | 1852 | IF ( num_hole > 0 .AND. .NOT. filled ) filled = .TRUE. |
---|
[2696] | 1853 | |
---|
[2893] | 1854 | ENDDO |
---|
[2696] | 1855 | ! |
---|
[2893] | 1856 | !-- Create an informative message if any holes were filled. |
---|
| 1857 | IF ( filled ) THEN |
---|
| 1858 | WRITE( message_string, * ) 'Topography was filtered, i.e. holes ' // & |
---|
| 1859 | 'resolved by only one grid point ' // & |
---|
| 1860 | 'were filled during initialization.' |
---|
| 1861 | CALL message( 'init_grid', 'PA0430', 0, 0, 0, 6, 0 ) |
---|
| 1862 | ENDIF |
---|
[2696] | 1863 | |
---|
| 1864 | DEALLOCATE( topo_tmp ) |
---|
| 1865 | ! |
---|
| 1866 | !-- Finally, exchange topo_3d array again and if necessary set Neumann boundary |
---|
| 1867 | !-- condition in case of non-cyclic lateral boundaries. |
---|
| 1868 | CALL exchange_horiz_int( topo_3d, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
| 1869 | |
---|
| 1870 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1871 | IF ( nys == 0 ) topo_3d(:,-1,:) = topo_3d(:,0,:) |
---|
| 1872 | IF ( nyn == ny ) topo_3d(:,ny+1,:) = topo_3d(:,ny,:) |
---|
| 1873 | ENDIF |
---|
| 1874 | |
---|
| 1875 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1876 | IF ( nxl == 0 ) topo_3d(:,:,-1) = topo_3d(:,:,0) |
---|
| 1877 | IF ( nxr == nx ) topo_3d(:,:,nx+1) = topo_3d(:,:,nx) |
---|
| 1878 | ENDIF |
---|
[2955] | 1879 | ! |
---|
| 1880 | !-- Exchange building ID and type. Note, building_type is an one-byte variable. |
---|
| 1881 | IF ( building_id_f%from_file ) & |
---|
| 1882 | CALL exchange_horiz_2d_int( building_id_f%var, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1883 | IF ( building_type_f%from_file ) THEN |
---|
| 1884 | var_exchange_int = INT( building_type_f%var, KIND = 4 ) |
---|
| 1885 | CALL exchange_horiz_2d_int( var_exchange_int, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1886 | building_type_f%var = INT( var_exchange_int, KIND = 1 ) |
---|
| 1887 | ENDIF |
---|
[2696] | 1888 | |
---|
| 1889 | END SUBROUTINE filter_topography |
---|
| 1890 | |
---|
| 1891 | |
---|
| 1892 | ! Description: |
---|
| 1893 | ! -----------------------------------------------------------------------------! |
---|
| 1894 | !> Reads topography information from file or sets generic topography. Moreover, |
---|
| 1895 | !> all topography-relevant topography arrays are initialized, and grid flags |
---|
| 1896 | !> are set. |
---|
| 1897 | !------------------------------------------------------------------------------! |
---|
| 1898 | SUBROUTINE init_topo( topo ) |
---|
| 1899 | |
---|
| 1900 | USE arrays_3d, & |
---|
| 1901 | ONLY: zw |
---|
| 1902 | |
---|
| 1903 | USE control_parameters, & |
---|
| 1904 | ONLY: bc_lr_cyc, bc_ns_cyc, building_height, building_length_x, & |
---|
| 1905 | building_length_y, building_wall_left, building_wall_south, & |
---|
| 1906 | canyon_height, canyon_wall_left, canyon_wall_south, & |
---|
| 1907 | canyon_width_x, canyon_width_y, dp_level_ind_b, dz, & |
---|
[3241] | 1908 | message_string, topography, topography_grid_convention, & |
---|
[2696] | 1909 | tunnel_height, tunnel_length, tunnel_width_x, tunnel_width_y, & |
---|
| 1910 | tunnel_wall_depth |
---|
| 1911 | |
---|
| 1912 | USE grid_variables, & |
---|
| 1913 | ONLY: dx, dy |
---|
| 1914 | |
---|
| 1915 | USE indices, & |
---|
| 1916 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nz, & |
---|
| 1917 | nzb, nzt |
---|
| 1918 | |
---|
| 1919 | USE kinds |
---|
| 1920 | |
---|
| 1921 | USE pegrid |
---|
| 1922 | |
---|
| 1923 | USE surface_mod, & |
---|
[2698] | 1924 | ONLY: get_topography_top_index, get_topography_top_index_ji |
---|
[2696] | 1925 | |
---|
| 1926 | IMPLICIT NONE |
---|
| 1927 | |
---|
| 1928 | INTEGER(iwp) :: bh !< temporary vertical index of building height |
---|
| 1929 | INTEGER(iwp) :: blx !< grid point number of building size along x |
---|
| 1930 | INTEGER(iwp) :: bly !< grid point number of building size along y |
---|
| 1931 | INTEGER(iwp) :: bxl !< index for left building wall |
---|
| 1932 | INTEGER(iwp) :: bxr !< index for right building wall |
---|
| 1933 | INTEGER(iwp) :: byn !< index for north building wall |
---|
| 1934 | INTEGER(iwp) :: bys !< index for south building wall |
---|
| 1935 | INTEGER(iwp) :: ch !< temporary vertical index for canyon height |
---|
| 1936 | INTEGER(iwp) :: cwx !< grid point number of canyon size along x |
---|
| 1937 | INTEGER(iwp) :: cwy !< grid point number of canyon size along y |
---|
| 1938 | INTEGER(iwp) :: cxl !< index for left canyon wall |
---|
| 1939 | INTEGER(iwp) :: cxr !< index for right canyon wall |
---|
| 1940 | INTEGER(iwp) :: cyn !< index for north canyon wall |
---|
| 1941 | INTEGER(iwp) :: cys !< index for south canyon wall |
---|
| 1942 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1943 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1944 | INTEGER(iwp) :: k !< index variable along z |
---|
| 1945 | INTEGER(iwp) :: hv_in !< heavyside function to model inner tunnel surface |
---|
| 1946 | INTEGER(iwp) :: hv_out !< heavyside function to model outer tunnel surface |
---|
| 1947 | INTEGER(iwp) :: txe_out !< end position of outer tunnel wall in x |
---|
| 1948 | INTEGER(iwp) :: txs_out !< start position of outer tunnel wall in x |
---|
| 1949 | INTEGER(iwp) :: tye_out !< end position of outer tunnel wall in y |
---|
| 1950 | INTEGER(iwp) :: tys_out !< start position of outer tunnel wall in y |
---|
| 1951 | INTEGER(iwp) :: txe_in !< end position of inner tunnel wall in x |
---|
| 1952 | INTEGER(iwp) :: txs_in !< start position of inner tunnel wall in x |
---|
| 1953 | INTEGER(iwp) :: tye_in !< end position of inner tunnel wall in y |
---|
| 1954 | INTEGER(iwp) :: tys_in !< start position of inner tunnel wall in y |
---|
| 1955 | INTEGER(iwp) :: td !< tunnel wall depth |
---|
| 1956 | INTEGER(iwp) :: th !< height of outer tunnel wall |
---|
| 1957 | |
---|
| 1958 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
---|
| 1959 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
| 1960 | |
---|
| 1961 | |
---|
| 1962 | ! |
---|
[1] | 1963 | !-- Set outer and inner index arrays for non-flat topography. |
---|
| 1964 | !-- Here consistency checks concerning domain size and periodicity are |
---|
| 1965 | !-- necessary. |
---|
| 1966 | !-- Within this SELECT CASE structure only nzb_local is initialized |
---|
| 1967 | !-- individually depending on the chosen topography type, all other index |
---|
| 1968 | !-- arrays are initialized further below. |
---|
| 1969 | SELECT CASE ( TRIM( topography ) ) |
---|
| 1970 | |
---|
| 1971 | CASE ( 'flat' ) |
---|
[2696] | 1972 | ! |
---|
[2232] | 1973 | !-- Initialilize 3D topography array, used later for initializing flags |
---|
[2696] | 1974 | topo(nzb+1:nzt+1,:,:) = IBSET( topo(nzb+1:nzt+1,:,:), 0 ) |
---|
[1] | 1975 | |
---|
| 1976 | CASE ( 'single_building' ) |
---|
| 1977 | ! |
---|
| 1978 | !-- Single rectangular building, by default centered in the middle of the |
---|
| 1979 | !-- total domain |
---|
| 1980 | blx = NINT( building_length_x / dx ) |
---|
| 1981 | bly = NINT( building_length_y / dy ) |
---|
[2232] | 1982 | bh = MINLOC( ABS( zw - building_height ), 1 ) - 1 |
---|
| 1983 | IF ( ABS( zw(bh) - building_height ) == & |
---|
[1675] | 1984 | ABS( zw(bh+1) - building_height ) ) bh = bh + 1 |
---|
[1322] | 1985 | IF ( building_wall_left == 9999999.9_wp ) THEN |
---|
[1] | 1986 | building_wall_left = ( nx + 1 - blx ) / 2 * dx |
---|
| 1987 | ENDIF |
---|
| 1988 | bxl = NINT( building_wall_left / dx ) |
---|
| 1989 | bxr = bxl + blx |
---|
| 1990 | |
---|
[1322] | 1991 | IF ( building_wall_south == 9999999.9_wp ) THEN |
---|
[2696] | 1992 | building_wall_south = ( ny + 1 - bly ) / 2 * dy |
---|
[1] | 1993 | ENDIF |
---|
| 1994 | bys = NINT( building_wall_south / dy ) |
---|
| 1995 | byn = bys + bly |
---|
| 1996 | |
---|
| 1997 | ! |
---|
| 1998 | !-- Building size has to meet some requirements |
---|
[2696] | 1999 | IF ( ( bxl < 1 ) .OR. ( bxr > nx-1 ) .OR. ( bxr < bxl+3 ) .OR. & |
---|
[1] | 2000 | ( bys < 1 ) .OR. ( byn > ny-1 ) .OR. ( byn < bys+3 ) ) THEN |
---|
[274] | 2001 | WRITE( message_string, * ) 'inconsistent building parameters:', & |
---|
[3046] | 2002 | '&bxl=', bxl, 'bxr=', bxr, 'bys=', bys, & |
---|
[274] | 2003 | 'byn=', byn, 'nx=', nx, 'ny=', ny |
---|
[254] | 2004 | CALL message( 'init_grid', 'PA0203', 1, 2, 0, 6, 0 ) |
---|
[1] | 2005 | ENDIF |
---|
| 2006 | |
---|
[2696] | 2007 | ALLOCATE( nzb_local(nysg:nyng,nxlg:nxrg) ) |
---|
[2892] | 2008 | nzb_local = 0 |
---|
[1] | 2009 | ! |
---|
[1968] | 2010 | !-- Define the building. |
---|
| 2011 | IF ( bxl <= nxr .AND. bxr >= nxl .AND. & |
---|
[2696] | 2012 | bys <= nyn .AND. byn >= nys ) & |
---|
[1968] | 2013 | nzb_local(MAX(nys,bys):MIN(nyn,byn),MAX(nxl,bxl):MIN(nxr,bxr)) = bh |
---|
[2232] | 2014 | ! |
---|
[2696] | 2015 | !-- Set bit array on basis of nzb_local |
---|
| 2016 | DO i = nxl, nxr |
---|
| 2017 | DO j = nys, nyn |
---|
| 2018 | topo(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 2019 | IBSET( topo(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
[2232] | 2020 | ENDDO |
---|
| 2021 | ENDDO |
---|
[2696] | 2022 | |
---|
| 2023 | DEALLOCATE( nzb_local ) |
---|
[2232] | 2024 | |
---|
[2696] | 2025 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 2026 | ! |
---|
| 2027 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 2028 | !-- boundary conditions for topography. |
---|
| 2029 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 2030 | IF ( nys == 0 ) THEN |
---|
| 2031 | DO i = 1, nbgp |
---|
| 2032 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 2033 | ENDDO |
---|
| 2034 | ENDIF |
---|
| 2035 | IF ( nyn == ny ) THEN |
---|
| 2036 | DO i = 1, nbgp |
---|
| 2037 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 2038 | ENDDO |
---|
| 2039 | ENDIF |
---|
| 2040 | ENDIF |
---|
| 2041 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 2042 | IF ( nxl == 0 ) THEN |
---|
| 2043 | DO i = 1, nbgp |
---|
| 2044 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 2045 | ENDDO |
---|
| 2046 | ENDIF |
---|
| 2047 | IF ( nxr == nx ) THEN |
---|
| 2048 | DO i = 1, nbgp |
---|
| 2049 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 2050 | ENDDO |
---|
| 2051 | ENDIF |
---|
| 2052 | ENDIF |
---|
[2232] | 2053 | |
---|
[240] | 2054 | CASE ( 'single_street_canyon' ) |
---|
| 2055 | ! |
---|
| 2056 | !-- Single quasi-2D street canyon of infinite length in x or y direction. |
---|
| 2057 | !-- The canyon is centered in the other direction by default. |
---|
[1322] | 2058 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[240] | 2059 | ! |
---|
| 2060 | !-- Street canyon in y direction |
---|
| 2061 | cwx = NINT( canyon_width_x / dx ) |
---|
[1322] | 2062 | IF ( canyon_wall_left == 9999999.9_wp ) THEN |
---|
[240] | 2063 | canyon_wall_left = ( nx + 1 - cwx ) / 2 * dx |
---|
| 2064 | ENDIF |
---|
| 2065 | cxl = NINT( canyon_wall_left / dx ) |
---|
| 2066 | cxr = cxl + cwx |
---|
[1322] | 2067 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[240] | 2068 | ! |
---|
| 2069 | !-- Street canyon in x direction |
---|
| 2070 | cwy = NINT( canyon_width_y / dy ) |
---|
[1322] | 2071 | IF ( canyon_wall_south == 9999999.9_wp ) THEN |
---|
[240] | 2072 | canyon_wall_south = ( ny + 1 - cwy ) / 2 * dy |
---|
| 2073 | ENDIF |
---|
| 2074 | cys = NINT( canyon_wall_south / dy ) |
---|
| 2075 | cyn = cys + cwy |
---|
[2696] | 2076 | |
---|
[240] | 2077 | ELSE |
---|
[254] | 2078 | |
---|
| 2079 | message_string = 'no street canyon width given' |
---|
| 2080 | CALL message( 'init_grid', 'PA0204', 1, 2, 0, 6, 0 ) |
---|
| 2081 | |
---|
[240] | 2082 | ENDIF |
---|
| 2083 | |
---|
[2232] | 2084 | ch = MINLOC( ABS( zw - canyon_height ), 1 ) - 1 |
---|
| 2085 | IF ( ABS( zw(ch) - canyon_height ) == & |
---|
[1675] | 2086 | ABS( zw(ch+1) - canyon_height ) ) ch = ch + 1 |
---|
[240] | 2087 | dp_level_ind_b = ch |
---|
| 2088 | ! |
---|
| 2089 | !-- Street canyon size has to meet some requirements |
---|
[1322] | 2090 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1353] | 2091 | IF ( ( cxl < 1 ) .OR. ( cxr > nx-1 ) .OR. ( cwx < 3 ) .OR. & |
---|
[2696] | 2092 | ( ch < 3 ) ) THEN |
---|
[1353] | 2093 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
[3046] | 2094 | '&cxl=', cxl, ' cxr=', cxr, & |
---|
[3045] | 2095 | ' cwx=', cwx, & |
---|
| 2096 | ' ch=', ch, ' nx=', nx, ' ny=', ny |
---|
[254] | 2097 | CALL message( 'init_grid', 'PA0205', 1, 2, 0, 6, 0 ) |
---|
[240] | 2098 | ENDIF |
---|
[1322] | 2099 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1353] | 2100 | IF ( ( cys < 1 ) .OR. ( cyn > ny-1 ) .OR. ( cwy < 3 ) .OR. & |
---|
[2696] | 2101 | ( ch < 3 ) ) THEN |
---|
[1353] | 2102 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
[3046] | 2103 | '&cys=', cys, ' cyn=', cyn, & |
---|
[3045] | 2104 | ' cwy=', cwy, & |
---|
| 2105 | ' ch=', ch, ' nx=', nx, ' ny=', ny |
---|
[254] | 2106 | CALL message( 'init_grid', 'PA0206', 1, 2, 0, 6, 0 ) |
---|
[240] | 2107 | ENDIF |
---|
| 2108 | ENDIF |
---|
[1353] | 2109 | IF ( canyon_width_x /= 9999999.9_wp .AND. & |
---|
| 2110 | canyon_width_y /= 9999999.9_wp ) THEN |
---|
| 2111 | message_string = 'inconsistent canyon parameters:' // & |
---|
[3046] | 2112 | '&street canyon can only be oriented' // & |
---|
[3045] | 2113 | ' either in x- or in y-direction' |
---|
[254] | 2114 | CALL message( 'init_grid', 'PA0207', 1, 2, 0, 6, 0 ) |
---|
[240] | 2115 | ENDIF |
---|
| 2116 | |
---|
[2696] | 2117 | ALLOCATE( nzb_local(nysg:nyng,nxlg:nxrg) ) |
---|
[240] | 2118 | nzb_local = ch |
---|
[1322] | 2119 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1968] | 2120 | IF ( cxl <= nxr .AND. cxr >= nxl ) & |
---|
| 2121 | nzb_local(:,MAX(nxl,cxl+1):MIN(nxr,cxr-1)) = 0 |
---|
[1322] | 2122 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1968] | 2123 | IF ( cys <= nyn .AND. cyn >= nys ) & |
---|
| 2124 | nzb_local(MAX(nys,cys+1):MIN(nyn,cyn-1),:) = 0 |
---|
[240] | 2125 | ENDIF |
---|
[2232] | 2126 | ! |
---|
[2696] | 2127 | !-- Set bit array on basis of nzb_local |
---|
| 2128 | DO i = nxl, nxr |
---|
| 2129 | DO j = nys, nyn |
---|
| 2130 | topo(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 2131 | IBSET( topo(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
[2232] | 2132 | ENDDO |
---|
| 2133 | ENDDO |
---|
[2696] | 2134 | DEALLOCATE( nzb_local ) |
---|
[1994] | 2135 | |
---|
[2696] | 2136 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 2137 | ! |
---|
| 2138 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 2139 | !-- boundary conditions for topography. |
---|
| 2140 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 2141 | IF ( nys == 0 ) THEN |
---|
| 2142 | DO i = 1, nbgp |
---|
| 2143 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 2144 | ENDDO |
---|
| 2145 | ENDIF |
---|
| 2146 | IF ( nyn == ny ) THEN |
---|
| 2147 | DO i = 1, nbgp |
---|
| 2148 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 2149 | ENDDO |
---|
| 2150 | ENDIF |
---|
| 2151 | ENDIF |
---|
| 2152 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 2153 | IF ( nxl == 0 ) THEN |
---|
| 2154 | DO i = 1, nbgp |
---|
| 2155 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 2156 | ENDDO |
---|
| 2157 | ENDIF |
---|
| 2158 | IF ( nxr == nx ) THEN |
---|
| 2159 | DO i = 1, nbgp |
---|
| 2160 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 2161 | ENDDO |
---|
| 2162 | ENDIF |
---|
| 2163 | ENDIF |
---|
[2232] | 2164 | |
---|
| 2165 | CASE ( 'tunnel' ) |
---|
| 2166 | |
---|
| 2167 | ! |
---|
| 2168 | !-- Tunnel height |
---|
| 2169 | IF ( tunnel_height == 9999999.9_wp ) THEN |
---|
| 2170 | th = zw( INT( 0.2 * nz) ) |
---|
| 2171 | ELSE |
---|
| 2172 | th = tunnel_height |
---|
| 2173 | ENDIF |
---|
| 2174 | ! |
---|
| 2175 | !-- Tunnel-wall depth |
---|
[2696] | 2176 | IF ( tunnel_wall_depth == 9999999.9_wp ) THEN |
---|
[3065] | 2177 | td = MAX ( dx, dy, dz(1) ) |
---|
[2232] | 2178 | ELSE |
---|
| 2179 | td = tunnel_wall_depth |
---|
| 2180 | ENDIF |
---|
| 2181 | ! |
---|
| 2182 | !-- Check for tunnel width |
---|
| 2183 | IF ( tunnel_width_x == 9999999.9_wp .AND. & |
---|
| 2184 | tunnel_width_y == 9999999.9_wp ) THEN |
---|
| 2185 | message_string = 'No tunnel width is given. ' |
---|
[2274] | 2186 | CALL message( 'init_grid', 'PA0280', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2187 | ENDIF |
---|
| 2188 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 2189 | tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 2190 | message_string = 'Inconsistent tunnel parameters:' // & |
---|
| 2191 | 'tunnel can only be oriented' // & |
---|
| 2192 | 'either in x- or in y-direction.' |
---|
[2274] | 2193 | CALL message( 'init_grid', 'PA0281', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2194 | ENDIF |
---|
| 2195 | ! |
---|
| 2196 | !-- Tunnel axis along y |
---|
| 2197 | IF ( tunnel_width_x /= 9999999.9_wp ) THEN |
---|
| 2198 | IF ( tunnel_width_x > ( nx + 1 ) * dx ) THEN |
---|
| 2199 | message_string = 'Tunnel width too large' |
---|
[2274] | 2200 | CALL message( 'init_grid', 'PA0282', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2201 | ENDIF |
---|
| 2202 | |
---|
| 2203 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_width_x * 0.5_wp ) |
---|
| 2204 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_width_x * 0.5_wp ) |
---|
| 2205 | txs_in = INT( ( nx + 1 ) * 0.5_wp * dx - & |
---|
| 2206 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
| 2207 | txe_in = INT( ( nx + 1 ) * 0.5_wp * dx + & |
---|
[2696] | 2208 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
[2232] | 2209 | |
---|
| 2210 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_length * 0.5_wp ) |
---|
| 2211 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_length * 0.5_wp ) |
---|
| 2212 | tys_in = tys_out |
---|
| 2213 | tye_in = tye_out |
---|
| 2214 | ENDIF |
---|
[2696] | 2215 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 2216 | tunnel_width_x - 2.0_wp * td <= 2.0_wp * dx ) & |
---|
| 2217 | THEN |
---|
[2232] | 2218 | message_string = 'Tunnel width too small' |
---|
[2274] | 2219 | CALL message( 'init_grid', 'PA0175', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2220 | ENDIF |
---|
| 2221 | IF ( tunnel_width_y /= 9999999.9_wp .AND. & |
---|
[2696] | 2222 | tunnel_width_y - 2.0_wp * td <= 2.0_wp * dy ) & |
---|
| 2223 | THEN |
---|
[2232] | 2224 | message_string = 'Tunnel width too small' |
---|
[2274] | 2225 | CALL message( 'init_grid', 'PA0455', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2226 | ENDIF |
---|
| 2227 | ! |
---|
| 2228 | !-- Tunnel axis along x |
---|
| 2229 | IF ( tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 2230 | IF ( tunnel_width_y > ( ny + 1 ) * dy ) THEN |
---|
| 2231 | message_string = 'Tunnel width too large' |
---|
[2274] | 2232 | CALL message( 'init_grid', 'PA0456', 1, 2, 0, 6, 0 ) |
---|
[2232] | 2233 | ENDIF |
---|
| 2234 | |
---|
| 2235 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_length * 0.5_wp ) |
---|
| 2236 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_length * 0.5_wp ) |
---|
| 2237 | txs_in = txs_out |
---|
| 2238 | txe_in = txe_out |
---|
| 2239 | |
---|
| 2240 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_width_y * 0.5_wp ) |
---|
| 2241 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_width_y * 0.5_wp ) |
---|
| 2242 | tys_in = INT( ( ny + 1 ) * 0.5_wp * dy - & |
---|
[2696] | 2243 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
[2232] | 2244 | tye_in = INT( ( ny + 1 ) * 0.5_wp * dy + & |
---|
| 2245 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
| 2246 | ENDIF |
---|
| 2247 | |
---|
[2696] | 2248 | topo = 0 |
---|
[2232] | 2249 | DO i = nxl, nxr |
---|
| 2250 | DO j = nys, nyn |
---|
| 2251 | ! |
---|
| 2252 | !-- Use heaviside function to model outer tunnel surface |
---|
| 2253 | hv_out = th * 0.5_wp * & |
---|
| 2254 | ( ( SIGN( 1.0_wp, i * dx - txs_out ) + 1.0_wp ) & |
---|
| 2255 | - ( SIGN( 1.0_wp, i * dx - txe_out ) + 1.0_wp ) ) |
---|
| 2256 | |
---|
| 2257 | hv_out = hv_out * 0.5_wp * & |
---|
| 2258 | ( ( SIGN( 1.0_wp, j * dy - tys_out ) + 1.0_wp ) & |
---|
| 2259 | - ( SIGN( 1.0_wp, j * dy - tye_out ) + 1.0_wp ) ) |
---|
[2696] | 2260 | ! |
---|
[2232] | 2261 | !-- Use heaviside function to model inner tunnel surface |
---|
| 2262 | hv_in = ( th - td ) * 0.5_wp * & |
---|
| 2263 | ( ( SIGN( 1.0_wp, i * dx - txs_in ) + 1.0_wp ) & |
---|
| 2264 | - ( SIGN( 1.0_wp, i * dx - txe_in ) + 1.0_wp ) ) |
---|
| 2265 | |
---|
| 2266 | hv_in = hv_in * 0.5_wp * & |
---|
| 2267 | ( ( SIGN( 1.0_wp, j * dy - tys_in ) + 1.0_wp ) & |
---|
| 2268 | - ( SIGN( 1.0_wp, j * dy - tye_in ) + 1.0_wp ) ) |
---|
| 2269 | ! |
---|
| 2270 | !-- Set flags at x-y-positions without any tunnel surface |
---|
| 2271 | IF ( hv_out - hv_in == 0.0_wp ) THEN |
---|
[2696] | 2272 | topo(nzb+1:nzt+1,j,i) = IBSET( topo(nzb+1:nzt+1,j,i), 0 ) |
---|
[2232] | 2273 | ! |
---|
| 2274 | !-- Set flags at x-y-positions with tunnel surfaces |
---|
| 2275 | ELSE |
---|
| 2276 | DO k = nzb + 1, nzt + 1 |
---|
| 2277 | ! |
---|
| 2278 | !-- Inner tunnel |
---|
| 2279 | IF ( hv_out - hv_in == th ) THEN |
---|
| 2280 | IF ( zw(k) <= hv_out ) THEN |
---|
[2696] | 2281 | topo(k,j,i) = IBCLR( topo(k,j,i), 0 ) |
---|
[2232] | 2282 | ELSE |
---|
[2696] | 2283 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2284 | ENDIF |
---|
| 2285 | ENDIF |
---|
| 2286 | ! |
---|
| 2287 | !-- Lateral tunnel walls |
---|
| 2288 | IF ( hv_out - hv_in == td ) THEN |
---|
| 2289 | IF ( zw(k) <= hv_in ) THEN |
---|
[2696] | 2290 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2291 | ELSEIF ( zw(k) > hv_in .AND. zw(k) <= hv_out ) THEN |
---|
[2696] | 2292 | topo(k,j,i) = IBCLR( topo(k,j,i), 0 ) |
---|
[2232] | 2293 | ELSEIF ( zw(k) > hv_out ) THEN |
---|
[2696] | 2294 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2295 | ENDIF |
---|
| 2296 | ENDIF |
---|
| 2297 | ENDDO |
---|
| 2298 | ENDIF |
---|
| 2299 | ENDDO |
---|
| 2300 | ENDDO |
---|
| 2301 | |
---|
[2696] | 2302 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2823] | 2303 | ! |
---|
| 2304 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 2305 | !-- boundary conditions for topography. |
---|
| 2306 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 2307 | IF ( nys == 0 ) THEN |
---|
| 2308 | DO i = 1, nbgp |
---|
| 2309 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 2310 | ENDDO |
---|
| 2311 | ENDIF |
---|
| 2312 | IF ( nyn == ny ) THEN |
---|
| 2313 | DO i = 1, nbgp |
---|
| 2314 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 2315 | ENDDO |
---|
| 2316 | ENDIF |
---|
| 2317 | ENDIF |
---|
| 2318 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 2319 | IF ( nxl == 0 ) THEN |
---|
| 2320 | DO i = 1, nbgp |
---|
| 2321 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
| 2322 | ENDDO |
---|
| 2323 | ENDIF |
---|
| 2324 | IF ( nxr == nx ) THEN |
---|
| 2325 | DO i = 1, nbgp |
---|
| 2326 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 2327 | ENDDO |
---|
| 2328 | ENDIF |
---|
| 2329 | ENDIF |
---|
[2232] | 2330 | |
---|
[1] | 2331 | CASE ( 'read_from_file' ) |
---|
| 2332 | ! |
---|
[2696] | 2333 | !-- Note, topography information have been already read. |
---|
| 2334 | !-- If required, further process topography, i.e. reference buildings on |
---|
| 2335 | !-- top of orography and set temporary 3D topography array, which is |
---|
| 2336 | !-- used later to set grid flags. Calling of this rouinte is also |
---|
| 2337 | !-- required in case of ASCII input, even though no distinction between |
---|
| 2338 | !-- terrain- and building height is made in this case. |
---|
| 2339 | CALL process_topography( topo ) |
---|
[1968] | 2340 | ! |
---|
[2696] | 2341 | !-- Filter holes resolved by only one grid-point |
---|
| 2342 | CALL filter_topography( topo ) |
---|
[1968] | 2343 | ! |
---|
[2696] | 2344 | !-- Exchange ghost-points, as well as add cyclic or Neumann boundary |
---|
| 2345 | !-- conditions. |
---|
| 2346 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2347 | ! |
---|
[2696] | 2348 | !-- Set lateral boundary conditions for topography on all ghost layers |
---|
[1968] | 2349 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2550] | 2350 | IF ( nys == 0 ) THEN |
---|
[2696] | 2351 | DO i = 1, nbgp |
---|
| 2352 | topo(:,nys-i,:) = topo(:,nys,:) |
---|
| 2353 | ENDDO |
---|
[2550] | 2354 | ENDIF |
---|
[2696] | 2355 | IF ( nyn == ny ) THEN |
---|
| 2356 | DO i = 1, nbgp |
---|
| 2357 | topo(:,nyn+i,:) = topo(:,nyn,:) |
---|
| 2358 | ENDDO |
---|
| 2359 | ENDIF |
---|
[1942] | 2360 | ENDIF |
---|
[1910] | 2361 | |
---|
[1968] | 2362 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[2550] | 2363 | IF ( nxl == 0 ) THEN |
---|
[2696] | 2364 | DO i = 1, nbgp |
---|
| 2365 | topo(:,:,nxl-i) = topo(:,:,nxl) |
---|
[2232] | 2366 | ENDDO |
---|
[2696] | 2367 | ENDIF |
---|
| 2368 | IF ( nxr == nx ) THEN |
---|
| 2369 | DO i = 1, nbgp |
---|
| 2370 | topo(:,:,nxr+i) = topo(:,:,nxr) |
---|
| 2371 | ENDDO |
---|
| 2372 | ENDIF |
---|
[2232] | 2373 | ENDIF |
---|
| 2374 | |
---|
[667] | 2375 | |
---|
[1] | 2376 | CASE DEFAULT |
---|
[2696] | 2377 | ! |
---|
[1] | 2378 | !-- The DEFAULT case is reached either if the parameter topography |
---|
[217] | 2379 | !-- contains a wrong character string or if the user has defined a special |
---|
[1] | 2380 | !-- case in the user interface. There, the subroutine user_init_grid |
---|
| 2381 | !-- checks which of these two conditions applies. |
---|
[2696] | 2382 | CALL user_init_grid( topo ) |
---|
| 2383 | CALL filter_topography( topo ) |
---|
[1] | 2384 | |
---|
| 2385 | END SELECT |
---|
| 2386 | ! |
---|
| 2387 | !-- Consistency checks and index array initialization are only required for |
---|
[2696] | 2388 | !-- non-flat topography. |
---|
[1] | 2389 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 2390 | ! |
---|
[2232] | 2391 | !-- In case of non-flat topography, check whether the convention how to |
---|
| 2392 | !-- define the topography grid has been set correctly, or whether the default |
---|
| 2393 | !-- is applicable. If this is not possible, abort. |
---|
| 2394 | IF ( TRIM( topography_grid_convention ) == ' ' ) THEN |
---|
| 2395 | IF ( TRIM( topography ) /= 'single_building' .AND. & |
---|
| 2396 | TRIM( topography ) /= 'single_street_canyon' .AND. & |
---|
| 2397 | TRIM( topography ) /= 'tunnel' .AND. & |
---|
| 2398 | TRIM( topography ) /= 'read_from_file') THEN |
---|
| 2399 | !-- The default value is not applicable here, because it is only valid |
---|
[3045] | 2400 | !-- for the four standard cases 'single_building', |
---|
| 2401 | !-- 'single_street_canyon', 'tunnel' and 'read_from_file' |
---|
[2232] | 2402 | !-- defined in init_grid. |
---|
| 2403 | WRITE( message_string, * ) & |
---|
[2696] | 2404 | 'The value for "topography_grid_convention" ', & |
---|
[3046] | 2405 | 'is not set. Its default value is & only valid for ', & |
---|
[3045] | 2406 | '"topography" = ''single_building'', ''tunnel'' ', & |
---|
[3046] | 2407 | '''single_street_canyon'' & or ''read_from_file''.', & |
---|
| 2408 | '& Choose ''cell_edge'' or ''cell_center''.' |
---|
[2232] | 2409 | CALL message( 'init_grid', 'PA0239', 1, 2, 0, 6, 0 ) |
---|
| 2410 | ELSE |
---|
| 2411 | !-- The default value is applicable here. |
---|
| 2412 | !-- Set convention according to topography. |
---|
| 2413 | IF ( TRIM( topography ) == 'single_building' .OR. & |
---|
| 2414 | TRIM( topography ) == 'single_street_canyon' ) THEN |
---|
| 2415 | topography_grid_convention = 'cell_edge' |
---|
| 2416 | ELSEIF ( TRIM( topography ) == 'read_from_file' .OR. & |
---|
| 2417 | TRIM( topography ) == 'tunnel') THEN |
---|
| 2418 | topography_grid_convention = 'cell_center' |
---|
| 2419 | ENDIF |
---|
| 2420 | ENDIF |
---|
| 2421 | ELSEIF ( TRIM( topography_grid_convention ) /= 'cell_edge' .AND. & |
---|
| 2422 | TRIM( topography_grid_convention ) /= 'cell_center' ) THEN |
---|
| 2423 | WRITE( message_string, * ) & |
---|
[2696] | 2424 | 'The value for "topography_grid_convention" is ', & |
---|
[3046] | 2425 | 'not recognized.& Choose ''cell_edge'' or ''cell_center''.' |
---|
[2232] | 2426 | CALL message( 'init_grid', 'PA0240', 1, 2, 0, 6, 0 ) |
---|
| 2427 | ENDIF |
---|
[1] | 2428 | |
---|
[2169] | 2429 | |
---|
[217] | 2430 | IF ( topography_grid_convention == 'cell_edge' ) THEN |
---|
[134] | 2431 | ! |
---|
[217] | 2432 | !-- The array nzb_local as defined using the 'cell_edge' convention |
---|
| 2433 | !-- describes the actual total size of topography which is defined at the |
---|
| 2434 | !-- cell edges where u=0 on the topography walls in x-direction and v=0 |
---|
| 2435 | !-- on the topography walls in y-direction. However, PALM uses individual |
---|
| 2436 | !-- arrays nzb_u|v|w|s_inner|outer that are based on nzb_s_inner. |
---|
| 2437 | !-- Therefore, the extent of topography in nzb_local is now reduced by |
---|
| 2438 | !-- 1dx at the E topography walls and by 1dy at the N topography walls |
---|
[1968] | 2439 | !-- to form the basis for nzb_s_inner. |
---|
| 2440 | !-- Note, the reverse memory access (i-j instead of j-i) is absolutely |
---|
| 2441 | !-- required at this point. |
---|
| 2442 | DO j = nys+1, nyn+1 |
---|
| 2443 | DO i = nxl-1, nxr |
---|
[2232] | 2444 | DO k = nzb, nzt+1 |
---|
[2696] | 2445 | IF ( BTEST( topo(k,j,i), 0 ) .OR. & |
---|
| 2446 | BTEST( topo(k,j,i+1), 0 ) ) & |
---|
| 2447 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2448 | ENDDO |
---|
| 2449 | ENDDO |
---|
| 2450 | ENDDO |
---|
[2696] | 2451 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2452 | |
---|
| 2453 | DO i = nxl, nxr+1 |
---|
| 2454 | DO j = nys-1, nyn |
---|
| 2455 | DO k = nzb, nzt+1 |
---|
[2696] | 2456 | IF ( BTEST( topo(k,j,i), 0 ) .OR. & |
---|
| 2457 | BTEST( topo(k,j+1,i), 0 ) ) & |
---|
| 2458 | topo(k,j,i) = IBSET( topo(k,j,i), 0 ) |
---|
[2232] | 2459 | ENDDO |
---|
| 2460 | ENDDO |
---|
| 2461 | ENDDO |
---|
[2696] | 2462 | CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2463 | |
---|
[217] | 2464 | ENDIF |
---|
[2696] | 2465 | ENDIF |
---|
[2232] | 2466 | |
---|
[1] | 2467 | |
---|
[2696] | 2468 | END SUBROUTINE init_topo |
---|
[1] | 2469 | |
---|
[2696] | 2470 | SUBROUTINE set_topo_flags(topo) |
---|
[1] | 2471 | |
---|
[2696] | 2472 | USE control_parameters, & |
---|
| 2473 | ONLY: bc_lr_cyc, bc_ns_cyc, constant_flux_layer, land_surface, & |
---|
| 2474 | use_surface_fluxes, use_top_fluxes, urban_surface |
---|
[1] | 2475 | |
---|
[2696] | 2476 | USE indices, & |
---|
[3241] | 2477 | ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, nzb, & |
---|
| 2478 | nzt, wall_flags_0 |
---|
[1] | 2479 | |
---|
[2696] | 2480 | USE kinds |
---|
[1] | 2481 | |
---|
[2696] | 2482 | IMPLICIT NONE |
---|
[1804] | 2483 | |
---|
[2696] | 2484 | INTEGER(iwp) :: i !< index variable along x |
---|
| 2485 | INTEGER(iwp) :: j !< index variable along y |
---|
| 2486 | INTEGER(iwp) :: k !< index variable along z |
---|
[1] | 2487 | |
---|
[2696] | 2488 | INTEGER(iwp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: topo !< input array for 3D topography and dummy array for setting "outer"-flags |
---|
[2232] | 2489 | |
---|
[2696] | 2490 | ALLOCATE( wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 2491 | wall_flags_0 = 0 |
---|
[2232] | 2492 | ! |
---|
[2696] | 2493 | !-- Set-up topography flags. First, set flags only for s, u, v and w-grid. |
---|
| 2494 | !-- Further special flags will be set in following loops. |
---|
[2232] | 2495 | DO i = nxl, nxr |
---|
| 2496 | DO j = nys, nyn |
---|
| 2497 | DO k = nzb, nzt+1 |
---|
| 2498 | ! |
---|
| 2499 | !-- scalar grid |
---|
[2696] | 2500 | IF ( BTEST( topo(k,j,i), 0 ) ) & |
---|
[2232] | 2501 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 0 ) |
---|
| 2502 | ! |
---|
[2696] | 2503 | !-- u grid |
---|
| 2504 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2505 | BTEST( topo(k,j,i-1), 0 ) ) & |
---|
| 2506 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 1 ) |
---|
| 2507 | ! |
---|
[2232] | 2508 | !-- v grid |
---|
[2696] | 2509 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2510 | BTEST( topo(k,j-1,i), 0 ) ) & |
---|
| 2511 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 2 ) |
---|
| 2512 | |
---|
[2232] | 2513 | ENDDO |
---|
[1] | 2514 | |
---|
[2232] | 2515 | DO k = nzb, nzt |
---|
[1] | 2516 | ! |
---|
[2232] | 2517 | !-- w grid |
---|
[2696] | 2518 | IF ( BTEST( topo(k,j,i), 0 ) .AND. & |
---|
| 2519 | BTEST( topo(k+1,j,i), 0 ) ) & |
---|
[2232] | 2520 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 3 ) |
---|
| 2521 | ENDDO |
---|
| 2522 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 3 ) |
---|
| 2523 | |
---|
| 2524 | ENDDO |
---|
| 2525 | ENDDO |
---|
[2696] | 2526 | |
---|
[2867] | 2527 | CALL exchange_horiz_int( wall_flags_0, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[1] | 2528 | ! |
---|
[2696] | 2529 | !-- Set outer array for scalars to mask near-surface grid points in |
---|
| 2530 | !-- production_e |
---|
| 2531 | DO i = nxl, nxr |
---|
| 2532 | DO j = nys, nyn |
---|
[2232] | 2533 | DO k = nzb, nzt+1 |
---|
[2696] | 2534 | IF ( BTEST( wall_flags_0(k,j-1,i), 0 ) .AND. & |
---|
| 2535 | BTEST( wall_flags_0(k,j+1,i), 0 ) .AND. & |
---|
| 2536 | BTEST( wall_flags_0(k,j,i-1), 0 ) .AND. & |
---|
| 2537 | BTEST( wall_flags_0(k,j-1,i-1), 0 ) .AND. & |
---|
| 2538 | BTEST( wall_flags_0(k,j+1,i-1), 0 ) .AND. & |
---|
| 2539 | BTEST( wall_flags_0(k,j-1,i+1), 0 ) .AND. & |
---|
| 2540 | BTEST( wall_flags_0(k,j+1,i+1), 0 ) ) & |
---|
| 2541 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 24 ) |
---|
[2232] | 2542 | ENDDO |
---|
| 2543 | ENDDO |
---|
| 2544 | ENDDO |
---|
[1] | 2545 | ! |
---|
[2232] | 2546 | !-- Set further special flags |
---|
| 2547 | DO i = nxl, nxr |
---|
| 2548 | DO j = nys, nyn |
---|
| 2549 | DO k = nzb, nzt+1 |
---|
[1] | 2550 | ! |
---|
[2232] | 2551 | !-- scalar grid, former nzb_diff_s_inner. |
---|
| 2552 | !-- Note, use this flag also to mask topography in diffusion_u and |
---|
| 2553 | !-- diffusion_v along the vertical direction. In case of |
---|
| 2554 | !-- use_surface_fluxes, fluxes are calculated via MOST, else, simple |
---|
| 2555 | !-- gradient approach is applied. Please note, in case of u- and v- |
---|
| 2556 | !-- diffuison, a small error is made at edges (on the east side for u, |
---|
| 2557 | !-- at the north side for v), since topography on scalar grid point |
---|
| 2558 | !-- is used instead of topography on u/v-grid. As number of topography grid |
---|
| 2559 | !-- points on uv-grid is different than s-grid, different number of |
---|
| 2560 | !-- surface elements would be required. In order to avoid this, |
---|
| 2561 | !-- treat edges (u(k,j,i+1)) simply by a gradient approach, i.e. these |
---|
| 2562 | !-- points are not masked within diffusion_u. Tests had shown that the |
---|
| 2563 | !-- effect on the flow is negligible. |
---|
| 2564 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2565 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2566 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 2567 | ELSE |
---|
| 2568 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 2569 | ENDIF |
---|
[1] | 2570 | |
---|
[2232] | 2571 | ENDDO |
---|
| 2572 | ! |
---|
| 2573 | !-- Special flag to control vertical diffusion at model top - former |
---|
| 2574 | !-- nzt_diff |
---|
| 2575 | wall_flags_0(:,j,i) = IBSET( wall_flags_0(:,j,i), 9 ) |
---|
| 2576 | IF ( use_top_fluxes ) & |
---|
[2478] | 2577 | wall_flags_0(nzt+1,j,i) = IBCLR( wall_flags_0(nzt+1,j,i), 9 ) |
---|
[1] | 2578 | |
---|
[2696] | 2579 | |
---|
[2232] | 2580 | DO k = nzb+1, nzt |
---|
| 2581 | ! |
---|
| 2582 | !-- Special flag on u grid, former nzb_u_inner + 1, required |
---|
| 2583 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 2584 | !-- topography, as well as initialize u with zero one grid point outside |
---|
| 2585 | !-- of topography. |
---|
| 2586 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 2587 | BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 2588 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 2589 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 20 ) |
---|
| 2590 | ! |
---|
| 2591 | !-- Special flag on v grid, former nzb_v_inner + 1, required |
---|
| 2592 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 2593 | !-- topography, as well as initialize v with zero one grid point outside |
---|
| 2594 | !-- of topography. |
---|
| 2595 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 2596 | BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 2597 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 2598 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 21 ) |
---|
| 2599 | ! |
---|
| 2600 | !-- Special flag on scalar grid, former nzb_s_inner+1. Used for |
---|
| 2601 | !-- lpm_sgs_tke |
---|
| 2602 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2603 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2604 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2605 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 25 ) |
---|
| 2606 | ! |
---|
| 2607 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 2608 | !-- in production_e |
---|
| 2609 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2610 | IF ( BTEST( wall_flags_0(k,j,i), 24 ) .AND. & |
---|
| 2611 | BTEST( wall_flags_0(k-1,j,i), 24 ) .AND. & |
---|
| 2612 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2613 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
| 2614 | ELSE |
---|
| 2615 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2616 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
[1] | 2617 | ENDIF |
---|
[2232] | 2618 | ! |
---|
| 2619 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 2620 | !-- in production_e |
---|
| 2621 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2622 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2623 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2624 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2625 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 2626 | ELSE |
---|
| 2627 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 2628 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 2629 | ENDIF |
---|
| 2630 | ENDDO |
---|
| 2631 | ! |
---|
| 2632 | !-- Flags indicating downward facing walls |
---|
| 2633 | DO k = nzb+1, nzt |
---|
| 2634 | ! |
---|
| 2635 | !-- Scalar grid |
---|
| 2636 | IF ( BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 2637 | .NOT. BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
[2696] | 2638 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 13 ) |
---|
[2232] | 2639 | ! |
---|
| 2640 | !-- Downward facing wall on u grid |
---|
| 2641 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 2642 | .NOT. BTEST( wall_flags_0(k,j,i), 1 ) ) & |
---|
| 2643 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 15 ) |
---|
| 2644 | ! |
---|
| 2645 | !-- Downward facing wall on v grid |
---|
| 2646 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 2647 | .NOT. BTEST( wall_flags_0(k,j,i), 2 ) ) & |
---|
| 2648 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 17 ) |
---|
| 2649 | ! |
---|
| 2650 | !-- Downward facing wall on w grid |
---|
| 2651 | IF ( BTEST( wall_flags_0(k-1,j,i), 3 ) .AND. & |
---|
| 2652 | .NOT. BTEST( wall_flags_0(k,j,i), 3 ) ) & |
---|
| 2653 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 19 ) |
---|
| 2654 | ENDDO |
---|
| 2655 | ! |
---|
| 2656 | !-- Flags indicating upward facing walls |
---|
| 2657 | DO k = nzb, nzt |
---|
| 2658 | ! |
---|
| 2659 | !-- Upward facing wall on scalar grid |
---|
| 2660 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2661 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 2662 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 12 ) |
---|
| 2663 | ! |
---|
| 2664 | !-- Upward facing wall on u grid |
---|
| 2665 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 2666 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 2667 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 14 ) |
---|
[1] | 2668 | |
---|
[2696] | 2669 | ! |
---|
[2232] | 2670 | !-- Upward facing wall on v grid |
---|
| 2671 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 2672 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 2673 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 16 ) |
---|
[2696] | 2674 | |
---|
[2232] | 2675 | ! |
---|
| 2676 | !-- Upward facing wall on w grid |
---|
| 2677 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 3 ) .AND. & |
---|
| 2678 | BTEST( wall_flags_0(k+1,j,i), 3 ) ) & |
---|
| 2679 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 18 ) |
---|
| 2680 | ! |
---|
| 2681 | !-- Special flag on scalar grid, former nzb_s_inner |
---|
| 2682 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .OR. & |
---|
| 2683 | BTEST( wall_flags_0(k,j,i), 12 ) .OR. & |
---|
| 2684 | BTEST( wall_flags_0(k,j,i), 13 ) ) & |
---|
[2696] | 2685 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 22 ) |
---|
[2232] | 2686 | ! |
---|
| 2687 | !-- Special flag on scalar grid, nzb_diff_s_inner - 1, required for |
---|
| 2688 | !-- flow_statistics |
---|
| 2689 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 2690 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 2691 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
[2696] | 2692 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
[2232] | 2693 | ELSE |
---|
| 2694 | IF ( BTEST( wall_flags_0(k,j,i), 22 ) ) & |
---|
| 2695 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
[1] | 2696 | ENDIF |
---|
[2696] | 2697 | |
---|
[1] | 2698 | |
---|
[2232] | 2699 | ENDDO |
---|
| 2700 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 22 ) |
---|
| 2701 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 23 ) |
---|
| 2702 | ENDDO |
---|
| 2703 | ENDDO |
---|
| 2704 | ! |
---|
[2696] | 2705 | !-- Finally, set identification flags indicating natural terrain or buildings. |
---|
| 2706 | !-- Natural terrain grid points. |
---|
| 2707 | IF ( land_surface ) THEN |
---|
| 2708 | DO i = nxl, nxr |
---|
| 2709 | DO j = nys, nyn |
---|
| 2710 | DO k = nzb, nzt+1 |
---|
| 2711 | ! |
---|
| 2712 | !-- Natural terrain grid point |
---|
| 2713 | IF ( BTEST( topo(k,j,i), 1 ) ) & |
---|
| 2714 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 5 ) |
---|
| 2715 | ENDDO |
---|
| 2716 | ENDDO |
---|
| 2717 | ENDDO |
---|
| 2718 | ENDIF |
---|
| 2719 | ! |
---|
| 2720 | !-- Building grid points. |
---|
| 2721 | IF ( urban_surface ) THEN |
---|
| 2722 | DO i = nxl, nxr |
---|
| 2723 | DO j = nys, nyn |
---|
| 2724 | DO k = nzb, nzt+1 |
---|
| 2725 | IF ( BTEST( topo(k,j,i), 2 ) ) & |
---|
| 2726 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 6 ) |
---|
| 2727 | ENDDO |
---|
| 2728 | ENDDO |
---|
| 2729 | ENDDO |
---|
| 2730 | ENDIF |
---|
| 2731 | ! |
---|
[2232] | 2732 | !-- Exchange ghost points for wall flags |
---|
[2696] | 2733 | CALL exchange_horiz_int( wall_flags_0, nys, nyn, nxl, nxr, nzt, nbgp ) |
---|
[2232] | 2734 | ! |
---|
| 2735 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 2736 | !-- boundary conditions for topography. |
---|
| 2737 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2696] | 2738 | IF ( nys == 0 ) THEN |
---|
| 2739 | DO i = 1, nbgp |
---|
| 2740 | wall_flags_0(:,nys-i,:) = wall_flags_0(:,nys,:) |
---|
| 2741 | ENDDO |
---|
| 2742 | ENDIF |
---|
| 2743 | IF ( nyn == ny ) THEN |
---|
| 2744 | DO i = 1, nbgp |
---|
| 2745 | wall_flags_0(:,nyn+i,:) = wall_flags_0(:,nyn,:) |
---|
| 2746 | ENDDO |
---|
| 2747 | ENDIF |
---|
[2232] | 2748 | ENDIF |
---|
| 2749 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[2696] | 2750 | IF ( nxl == 0 ) THEN |
---|
| 2751 | DO i = 1, nbgp |
---|
| 2752 | wall_flags_0(:,:,nxl-i) = wall_flags_0(:,:,nxl) |
---|
| 2753 | ENDDO |
---|
[2232] | 2754 | ENDIF |
---|
[2696] | 2755 | IF ( nxr == nx ) THEN |
---|
| 2756 | DO i = 1, nbgp |
---|
| 2757 | wall_flags_0(:,:,nxr+i) = wall_flags_0(:,:,nxr) |
---|
[2232] | 2758 | ENDDO |
---|
[2696] | 2759 | ENDIF |
---|
[2232] | 2760 | ENDIF |
---|
[1] | 2761 | |
---|
[1968] | 2762 | |
---|
[2696] | 2763 | END SUBROUTINE set_topo_flags |
---|
[114] | 2764 | |
---|
| 2765 | |
---|
| 2766 | |
---|