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