[1682] | 1 | !> @file init_grid.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[1036] | 3 | ! This file is part of PALM. |
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| 4 | ! |
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[2000] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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| 6 | ! terms of the GNU General Public License as published by the Free Software |
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| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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| 8 | ! version. |
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[1036] | 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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[2101] | 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[254] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[2233] | 22 | ! |
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[2318] | 23 | ! |
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[2233] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: init_grid.f90 2318 2017-07-20 17:27:44Z suehring $ |
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[2318] | 27 | ! Get topography top index via Function call |
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| 28 | ! |
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| 29 | ! 2317 2017-07-20 17:27:19Z suehring |
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[2302] | 30 | ! Bugfixes in reading 3D topography from file |
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| 31 | ! |
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| 32 | ! 2274 2017-06-09 13:27:48Z Giersch |
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[2274] | 33 | ! Changed error messages |
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| 34 | ! |
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| 35 | ! 2233 2017-05-30 18:08:54Z suehring |
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[2233] | 36 | ! |
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| 37 | ! 2232 2017-05-30 17:47:52Z suehring |
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[2232] | 38 | ! - Adjustments according to new topography representation |
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| 39 | ! - Bugfix: Move determination of nzb_max behind topography modification in |
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| 40 | ! cell-edge case |
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| 41 | ! - Get rid off global arrays required for topography output |
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| 42 | ! - Enable topography input via netcdf |
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| 43 | ! - Generic tunnel set-up added |
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[1969] | 44 | ! |
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[2201] | 45 | ! 2200 2017-04-11 11:37:51Z suehring |
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| 46 | ! monotonic_adjustment removed |
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| 47 | ! |
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[2170] | 48 | ! 2169 2017-03-06 18:16:35Z suehring |
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| 49 | ! Bugfix, move setting for topography grid convention to init_grid, else, if no |
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| 50 | ! value is set, the simulation may abort in case of restarts |
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| 51 | ! |
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[2129] | 52 | ! 2128 2017-01-23 15:00:03Z suehring |
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| 53 | ! Bugfix in setting topography from file in case of ocean simulations |
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| 54 | ! |
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[2089] | 55 | ! 2088 2016-12-19 16:30:25Z suehring |
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| 56 | ! Bugfix in generic topography in case of ocean simulations |
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| 57 | ! |
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[2038] | 58 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 59 | ! Anelastic approximation implemented |
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| 60 | ! |
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[2022] | 61 | ! 2021 2016-10-07 14:08:57Z suehring |
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| 62 | ! Bugfix: setting Neumann boundary conditions for topography required for |
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| 63 | ! topography flags in multigrid_noopt solver |
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| 64 | ! |
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[2001] | 65 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 66 | ! Forced header and separation lines into 80 columns |
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| 67 | ! |
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[1995] | 68 | ! 1994 2016-08-15 09:52:21Z suehring |
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| 69 | ! Bugfix in definition of generic topography |
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| 70 | ! |
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[1983] | 71 | ! 1982 2016-08-01 11:04:48Z suehring |
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| 72 | ! Bugfix concering consistency check for topography |
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| 73 | ! |
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[1969] | 74 | ! 1968 2016-07-18 12:01:49Z suehring |
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[1968] | 75 | ! Changed: PE-wise reading of topography file in order to avoid global definition |
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| 76 | ! of arrays nzb_local and nzb_tmp. Thereby, topography definition for single |
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| 77 | ! buildings and street canyons has changed, as well as flag setting for |
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| 78 | ! multigrid scheme. |
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| 79 | ! |
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| 80 | ! Bugfix in checking l_grid anisotropy. |
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| 81 | ! Simplify initial computation of lwall and vertical_influence, i.e. remove |
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| 82 | ! nzb_s_inner as it is still zero at this point. |
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[1932] | 83 | ! |
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[1943] | 84 | ! 1942 2016-06-14 12:18:18Z suehring |
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| 85 | ! Topography filter implemented to fill holes resolved by only one grid point. |
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| 86 | ! Initialization of flags for ws-scheme moved to advec_ws. |
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| 87 | ! |
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[1932] | 88 | ! 1931 2016-06-10 12:06:59Z suehring |
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| 89 | ! Rename multigrid into multigrid_noopt and multigrid_fast into multigrid |
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| 90 | ! |
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[1911] | 91 | ! 1910 2016-05-26 06:49:46Z raasch |
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| 92 | ! Bugfix: if topography is read from file, Neumann conditions are used for the |
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| 93 | ! nzb_local array (instead of cyclic conditions) in case that non-cyclic |
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| 94 | ! boundary conditions are switched on for the run |
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| 95 | ! |
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[1903] | 96 | ! 1902 2016-05-09 11:18:56Z suehring |
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[1910] | 97 | ! Set topography flags for multigrid solver only (not for multigrid_fast) |
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[1903] | 98 | ! |
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[1887] | 99 | ! 1886 2016-04-21 11:20:47Z suehring |
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| 100 | ! Bugfix: setting advection flags near walls |
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| 101 | ! reformulated index values for nzb_v_inner |
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| 102 | ! variable discriptions added in declaration block |
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| 103 | ! |
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[1846] | 104 | ! 1845 2016-04-08 08:29:13Z raasch |
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| 105 | ! nzb_2d removed |
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| 106 | ! |
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[1805] | 107 | ! 1804 2016-04-05 16:30:18Z maronga |
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| 108 | ! Removed code for parameter file check (__check) |
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| 109 | ! |
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[1780] | 110 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 111 | ! coupling_char is trimmed at every place it occurs, because it can have |
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| 112 | ! different length now |
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| 113 | ! |
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[1763] | 114 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 115 | ! Introduction of nested domain feature |
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| 116 | ! |
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[1744] | 117 | ! 1743 2016-01-13 10:23:51Z raasch |
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| 118 | ! Bugfix for calculation of nzb_s_outer and nzb_u_outer at north boundary of |
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| 119 | ! total domain |
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| 120 | ! |
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[1692] | 121 | ! 1691 2015-10-26 16:17:44Z maronga |
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| 122 | ! Renamed prandtl_layer to constant_flux_layer. |
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| 123 | ! |
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[1683] | 124 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 125 | ! Code annotations made doxygen readable |
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| 126 | ! |
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[1678] | 127 | ! 1677 2015-10-02 13:25:23Z boeske |
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| 128 | ! Bugfix: Ghost points are included in wall_flags_0 and wall_flags_00 |
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| 129 | ! |
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[1676] | 130 | ! 1675 2015-10-02 08:28:59Z gronemeier |
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| 131 | ! Bugfix: Definition of topography grid levels |
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| 132 | ! |
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[1662] | 133 | ! 1660 2015-09-21 08:15:16Z gronemeier |
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| 134 | ! Bugfix: Definition of topography grid levels if vertical grid stretching |
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| 135 | ! starts below the maximum topography height. |
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| 136 | ! |
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[1581] | 137 | ! 1580 2015-04-10 13:43:49Z suehring |
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| 138 | ! Bugfix: setting flags for 5th order scheme near buildings |
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| 139 | ! |
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[1576] | 140 | ! 1575 2015-03-27 09:56:27Z raasch |
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| 141 | ! adjustments for psolver-queries |
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| 142 | ! |
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[1558] | 143 | ! 1557 2015-03-05 16:43:04Z suehring |
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| 144 | ! Adjustment for monotoinic limiter |
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| 145 | ! |
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[1419] | 146 | ! 1418 2014-06-06 13:05:08Z fricke |
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| 147 | ! Bugfix: Change if-condition for stretched grid in the ocean, with the old |
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| 148 | ! condition and a negative value for dz_stretch_level the condition |
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| 149 | ! was always true for the whole model domain |
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| 150 | ! |
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[1410] | 151 | ! 1409 2014-05-23 12:11:32Z suehring |
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| 152 | ! Bugfix: set wall_flags_0 at inflow and outflow boundary also for i <= nxlu |
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| 153 | ! j <= nysv |
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| 154 | ! |
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[1354] | 155 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 156 | ! REAL constants provided with KIND-attribute |
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| 157 | ! |
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[1323] | 158 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 159 | ! REAL constants defined as wp-kind |
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| 160 | ! |
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[1321] | 161 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 162 | ! ONLY-attribute added to USE-statements, |
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| 163 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 164 | ! kinds are defined in new module kinds, |
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| 165 | ! revision history before 2012 removed, |
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| 166 | ! comment fields (!:) to be used for variable explanations added to |
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| 167 | ! all variable declaration statements |
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[1321] | 168 | ! |
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[1222] | 169 | ! 1221 2013-09-10 08:59:13Z raasch |
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| 170 | ! wall_flags_00 introduced to hold bits 32-63, |
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| 171 | ! additional 3D-flag arrays for replacing the 2D-index array nzb_s_inner in |
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| 172 | ! loops optimized for openACC (pres + flow_statistics) |
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| 173 | ! |
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[1093] | 174 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 175 | ! unused variables removed |
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| 176 | ! |
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[1070] | 177 | ! 1069 2012-11-28 16:18:43Z maronga |
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[1779] | 178 | ! bugfix: added coupling_char to TOPOGRAPHY_DATA to allow topography in the |
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| 179 | ! ocean model in case of coupled runs |
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[1070] | 180 | ! |
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[1037] | 181 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 182 | ! code put under GPL (PALM 3.9) |
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| 183 | ! |
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[1017] | 184 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 185 | ! lower index for calculating wall_flags_0 set to nzb_w_inner instead of |
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| 186 | ! nzb_w_inner+1 |
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| 187 | ! |
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[997] | 188 | ! 996 2012-09-07 10:41:47Z raasch |
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| 189 | ! little reformatting |
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| 190 | ! |
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[979] | 191 | ! 978 2012-08-09 08:28:32Z fricke |
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| 192 | ! Bugfix: nzb_max is set to nzt at non-cyclic lateral boundaries |
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| 193 | ! Bugfix: Set wall_flags_0 for inflow boundary |
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| 194 | ! |
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[928] | 195 | ! 927 2012-06-06 19:15:04Z raasch |
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| 196 | ! Wall flags are not set for multigrid method in case of masking method |
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| 197 | ! |
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[865] | 198 | ! 864 2012-03-27 15:10:33Z gryschka |
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[927] | 199 | ! In case of ocean and Dirichlet bottom bc for u and v dzu_mg and ddzu_pres |
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| 200 | ! were not correctly defined for k=1. |
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[865] | 201 | ! |
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[863] | 202 | ! 861 2012-03-26 14:18:34Z suehring |
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[861] | 203 | ! Set wall_flags_0. The array is needed for degradation in ws-scheme near walls, |
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| 204 | ! inflow and outflow boundaries as well as near the bottom and the top of the |
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[863] | 205 | ! model domain.! |
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[861] | 206 | ! Initialization of nzb_s_inner and nzb_w_inner. |
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| 207 | ! gls has to be at least nbgp to do not exceed the array bounds of nzb_local |
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| 208 | ! while setting wall_flags_0 |
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| 209 | ! |
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[844] | 210 | ! 843 2012-02-29 15:16:21Z gryschka |
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| 211 | ! In case of ocean and dirichlet bc for u and v at the bottom |
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| 212 | ! the first u-level ist defined at same height as the first w-level |
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| 213 | ! |
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[819] | 214 | ! 818 2012-02-08 16:11:23Z maronga |
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| 215 | ! Bugfix: topo_height is only required if topography is used. It is thus now |
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| 216 | ! allocated in the topography branch |
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| 217 | ! |
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[810] | 218 | ! 809 2012-01-30 13:32:58Z maronga |
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| 219 | ! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives |
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| 220 | ! |
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[808] | 221 | ! 807 2012-01-25 11:53:51Z maronga |
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| 222 | ! New cpp directive "__check" implemented which is used by check_namelist_files |
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| 223 | ! |
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[1] | 224 | ! Revision 1.1 1997/08/11 06:17:45 raasch |
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| 225 | ! Initial revision (Testversion) |
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| 226 | ! |
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| 227 | ! |
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| 228 | ! Description: |
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| 229 | ! ------------ |
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[1682] | 230 | !> Creating grid depending constants |
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[2232] | 231 | !> To Do: Setting topo flags only based on topo_3d array - flags for former |
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| 232 | !> nzb_outer arrays are still not set properly. |
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| 233 | !> To Do: Rearrange topo flag list |
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[1] | 234 | !------------------------------------------------------------------------------! |
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[1682] | 235 | SUBROUTINE init_grid |
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| 236 | |
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[1942] | 237 | USE advec_ws, & |
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| 238 | ONLY: ws_init_flags |
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[1] | 239 | |
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[1320] | 240 | USE arrays_3d, & |
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| 241 | ONLY: dd2zu, ddzu, ddzu_pres, ddzw, dzu, dzu_mg, dzw, dzw_mg, f1_mg, & |
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| 242 | f2_mg, f3_mg, l_grid, l_wall, zu, zw |
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| 243 | |
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[1353] | 244 | USE control_parameters, & |
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[1910] | 245 | ONLY: bc_lr_cyc, bc_ns_cyc, building_height, building_length_x, & |
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[1320] | 246 | building_length_y, building_wall_left, building_wall_south, & |
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| 247 | canyon_height, canyon_wall_left, canyon_wall_south, & |
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[1691] | 248 | canyon_width_x, canyon_width_y, constant_flux_layer, & |
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| 249 | coupling_char, dp_level_ind_b, dz, dz_max, dz_stretch_factor, & |
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[1968] | 250 | dz_stretch_level, dz_stretch_level_index, grid_level, ibc_uv_b, & |
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| 251 | io_blocks, io_group, inflow_l, inflow_n, inflow_r, inflow_s, & |
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[2232] | 252 | lod, masking_method, maximum_grid_level, message_string, & |
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[2021] | 253 | momentum_advec, nest_domain, nest_bound_l, nest_bound_n, & |
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| 254 | nest_bound_r, nest_bound_s, ocean, outflow_l, outflow_n, & |
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[1762] | 255 | outflow_r, outflow_s, psolver, scalar_advec, topography, & |
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[2232] | 256 | topography_grid_convention, tunnel_height, tunnel_length, & |
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| 257 | tunnel_width_x, tunnel_width_y, tunnel_wall_depth, & |
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| 258 | use_surface_fluxes, use_top_fluxes, wall_adjustment_factor |
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[2021] | 259 | |
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[1320] | 260 | USE grid_variables, & |
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[2232] | 261 | ONLY: ddx, ddx2, ddy, ddy2, dx, dx2, dy, dy2, zu_s_inner, zw_w_inner |
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[1320] | 262 | |
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| 263 | USE indices, & |
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[2232] | 264 | ONLY: advc_flags_1, advc_flags_2, flags, nbgp, nx, nxl, nxlg, nxl_mg, & |
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| 265 | nxr, nxrg, nxr_mg, ny, nyn, nyng, nyn_mg, nys, nys_mg, nysg, nz,& |
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| 266 | nzb, nzb_diff, nzb_diff_s_inner, nzb_diff_s_outer, & |
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| 267 | nzb_max, nzb_s_inner, nzb_s_outer, nzb_u_inner, & |
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[1845] | 268 | nzb_u_outer, nzb_v_inner, nzb_v_outer, nzb_w_inner, & |
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[2232] | 269 | nzb_w_outer, nzt, nzt_mg, wall_flags_0, wall_flags_1, & |
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[1320] | 270 | wall_flags_10, wall_flags_2, wall_flags_3, wall_flags_4, & |
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| 271 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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| 272 | wall_flags_9 |
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| 273 | |
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| 274 | USE kinds |
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[2232] | 275 | #if defined ( __netcdf ) |
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| 276 | USE netcdf_interface, & |
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| 277 | ONLY: netcdf_close_file, netcdf_open_read_file, netcdf_get_attribute, & |
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| 278 | netcdf_get_variable |
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| 279 | #endif |
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[1] | 280 | USE pegrid |
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| 281 | |
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[2232] | 282 | USE surface_mod, & |
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[2317] | 283 | ONLY: get_topography_top_index, init_bc |
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[2232] | 284 | |
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[1] | 285 | IMPLICIT NONE |
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| 286 | |
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[1968] | 287 | INTEGER(iwp) :: bh !< temporary vertical index of building height |
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| 288 | INTEGER(iwp) :: blx !< grid point number of building size along x |
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| 289 | INTEGER(iwp) :: bly !< grid point number of building size along y |
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| 290 | INTEGER(iwp) :: bxl !< index for left building wall |
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| 291 | INTEGER(iwp) :: bxr !< index for right building wall |
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| 292 | INTEGER(iwp) :: byn !< index for north building wall |
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| 293 | INTEGER(iwp) :: bys !< index for south building wall |
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| 294 | INTEGER(iwp) :: ch !< temporary vertical index for canyon height |
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| 295 | INTEGER(iwp) :: cwx !< grid point number of canyon size along x |
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| 296 | INTEGER(iwp) :: cwy !< grid point number of canyon size along y |
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| 297 | INTEGER(iwp) :: cxl !< index for left canyon wall |
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| 298 | INTEGER(iwp) :: cxr !< index for right canyon wall |
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| 299 | INTEGER(iwp) :: cyn !< index for north canyon wall |
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| 300 | INTEGER(iwp) :: cys !< index for south canyon wall |
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| 301 | INTEGER(iwp) :: i !< index variable along x |
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[2232] | 302 | INTEGER(iwp) :: id_topo !< NetCDF id of topograhy input file |
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[1968] | 303 | INTEGER(iwp) :: ii !< loop variable for reading topography file |
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| 304 | INTEGER(iwp) :: inc !< incremental parameter for coarsening grid level |
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| 305 | INTEGER(iwp) :: j !< index variable along y |
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| 306 | INTEGER(iwp) :: k !< index variable along z |
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[2232] | 307 | INTEGER(iwp) :: k_top !< topography top index on local PE |
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[1968] | 308 | INTEGER(iwp) :: l !< loop variable |
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| 309 | INTEGER(iwp) :: nxl_l !< index of left PE boundary for multigrid level |
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| 310 | INTEGER(iwp) :: nxr_l !< index of right PE boundary for multigrid level |
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| 311 | INTEGER(iwp) :: nyn_l !< index of north PE boundary for multigrid level |
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| 312 | INTEGER(iwp) :: nys_l !< index of south PE boundary for multigrid level |
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| 313 | INTEGER(iwp) :: nzb_local_max !< vertical grid index of maximum topography height |
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| 314 | INTEGER(iwp) :: nzb_local_min !< vertical grid index of minimum topography height |
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| 315 | INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level |
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| 316 | INTEGER(iwp) :: num_hole !< number of holes (in topography) resolved by only one grid point |
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| 317 | INTEGER(iwp) :: num_hole_l !< number of holes (in topography) resolved by only one grid point on local PE |
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| 318 | INTEGER(iwp) :: num_wall !< number of surrounding vertical walls for a single grid point |
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| 319 | INTEGER(iwp) :: skip_n_rows !< counting variable to skip rows while reading topography file |
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[2232] | 320 | INTEGER(iwp) :: hv_in !< heavyside function to model inner tunnel surface |
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| 321 | INTEGER(iwp) :: hv_out !< heavyside function to model outer tunnel surface |
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| 322 | INTEGER(iwp) :: txe_out !< end position of outer tunnel wall in x |
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| 323 | INTEGER(iwp) :: txs_out !< start position of outer tunnel wall in x |
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| 324 | INTEGER(iwp) :: tye_out !< end position of outer tunnel wall in y |
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| 325 | INTEGER(iwp) :: tys_out !< start position of outer tunnel wall in y |
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| 326 | INTEGER(iwp) :: txe_in !< end position of inner tunnel wall in x |
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| 327 | INTEGER(iwp) :: txs_in !< start position of inner tunnel wall in x |
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| 328 | INTEGER(iwp) :: tye_in !< end position of inner tunnel wall in y |
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| 329 | INTEGER(iwp) :: tys_in !< start position of inner tunnel wall in y |
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| 330 | INTEGER(iwp) :: td !< tunnel wall depth |
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| 331 | INTEGER(iwp) :: th !< height of outer tunnel wall |
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| 332 | |
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[1968] | 333 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_local !< index for topography top at cell-center |
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| 334 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: nzb_tmp !< dummy to calculate topography indices on u- and v-grid |
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[1] | 335 | |
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[2232] | 336 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo_3d !< input array for 3D topography and dummy array for setting "outer"-flags |
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| 337 | |
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| 338 | LOGICAL :: netcdf_extend = .FALSE. !< Flag indicating wether netcdf topography input file or not |
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| 339 | |
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[1968] | 340 | REAL(wp) :: dum !< dummy variable to skip columns while reading topography file |
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[1886] | 341 | REAL(wp) :: dz_stretched !< stretched vertical grid spacing |
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[861] | 342 | |
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[2232] | 343 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: oro_height !< input variable for terrain height |
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[1968] | 344 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: topo_height !< input variable for topography height |
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[1] | 345 | |
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[2302] | 346 | INTEGER( KIND=1 ), DIMENSION(:,:,:), ALLOCATABLE :: topo_3d_read !< input variable for 3D topography |
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| 347 | |
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[1] | 348 | ! |
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[709] | 349 | !-- Calculation of horizontal array bounds including ghost layers |
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[667] | 350 | nxlg = nxl - nbgp |
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| 351 | nxrg = nxr + nbgp |
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| 352 | nysg = nys - nbgp |
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| 353 | nyng = nyn + nbgp |
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[709] | 354 | |
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[667] | 355 | ! |
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[1] | 356 | !-- Allocate grid arrays |
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[1353] | 357 | ALLOCATE( ddzu(1:nzt+1), ddzw(1:nzt+1), dd2zu(1:nzt), dzu(1:nzt+1), & |
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[667] | 358 | dzw(1:nzt+1), l_grid(1:nzt), zu(nzb:nzt+1), zw(nzb:nzt+1) ) |
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[1] | 359 | |
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| 360 | ! |
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| 361 | !-- Compute height of u-levels from constant grid length and dz stretch factors |
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[1353] | 362 | IF ( dz == -1.0_wp ) THEN |
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[254] | 363 | message_string = 'missing dz' |
---|
| 364 | CALL message( 'init_grid', 'PA0200', 1, 2, 0, 6, 0 ) |
---|
[1353] | 365 | ELSEIF ( dz <= 0.0_wp ) THEN |
---|
[254] | 366 | WRITE( message_string, * ) 'dz=',dz,' <= 0.0' |
---|
| 367 | CALL message( 'init_grid', 'PA0201', 1, 2, 0, 6, 0 ) |
---|
[1] | 368 | ENDIF |
---|
[94] | 369 | |
---|
[1] | 370 | ! |
---|
[94] | 371 | !-- Define the vertical grid levels |
---|
| 372 | IF ( .NOT. ocean ) THEN |
---|
| 373 | ! |
---|
| 374 | !-- Grid for atmosphere with surface at z=0 (k=0, w-grid). |
---|
[843] | 375 | !-- The second u-level (k=1) corresponds to the top of the |
---|
[94] | 376 | !-- Prandtl-layer. |
---|
[667] | 377 | |
---|
| 378 | IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN |
---|
[1353] | 379 | zu(0) = 0.0_wp |
---|
| 380 | ! zu(0) = - dz * 0.5_wp |
---|
[667] | 381 | ELSE |
---|
[1353] | 382 | zu(0) = - dz * 0.5_wp |
---|
[667] | 383 | ENDIF |
---|
[1353] | 384 | zu(1) = dz * 0.5_wp |
---|
[1] | 385 | |
---|
[94] | 386 | dz_stretch_level_index = nzt+1 |
---|
| 387 | dz_stretched = dz |
---|
| 388 | DO k = 2, nzt+1 |
---|
| 389 | IF ( dz_stretch_level <= zu(k-1) .AND. dz_stretched < dz_max ) THEN |
---|
| 390 | dz_stretched = dz_stretched * dz_stretch_factor |
---|
| 391 | dz_stretched = MIN( dz_stretched, dz_max ) |
---|
| 392 | IF ( dz_stretch_level_index == nzt+1 ) dz_stretch_level_index = k-1 |
---|
| 393 | ENDIF |
---|
| 394 | zu(k) = zu(k-1) + dz_stretched |
---|
| 395 | ENDDO |
---|
[1] | 396 | |
---|
| 397 | ! |
---|
[94] | 398 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 399 | !-- corresponding u-levels. In case of dirichlet bc for u and v at the |
---|
| 400 | !-- ground the first u- and w-level (k=0) are defined at same height (z=0). |
---|
| 401 | !-- The top w-level is extrapolated linearly. |
---|
[1353] | 402 | zw(0) = 0.0_wp |
---|
[94] | 403 | DO k = 1, nzt |
---|
[1353] | 404 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 405 | ENDDO |
---|
[1353] | 406 | zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) |
---|
[1] | 407 | |
---|
[94] | 408 | ELSE |
---|
[1] | 409 | ! |
---|
[843] | 410 | !-- Grid for ocean with free water surface is at k=nzt (w-grid). |
---|
| 411 | !-- In case of neumann bc at the ground the first first u-level (k=0) lies |
---|
| 412 | !-- below the first w-level (k=0). In case of dirichlet bc the first u- and |
---|
| 413 | !-- w-level are defined at same height, but staggered from the second level. |
---|
| 414 | !-- The second u-level (k=1) corresponds to the top of the Prandtl-layer. |
---|
[1353] | 415 | zu(nzt+1) = dz * 0.5_wp |
---|
| 416 | zu(nzt) = - dz * 0.5_wp |
---|
[94] | 417 | |
---|
| 418 | dz_stretch_level_index = 0 |
---|
| 419 | dz_stretched = dz |
---|
| 420 | DO k = nzt-1, 0, -1 |
---|
[1418] | 421 | ! |
---|
| 422 | !-- The default value of dz_stretch_level is positive, thus the first |
---|
| 423 | !-- condition is always true. Hence, the second condition is necessary. |
---|
| 424 | IF ( dz_stretch_level >= zu(k+1) .AND. dz_stretch_level <= 0.0 & |
---|
| 425 | .AND. dz_stretched < dz_max ) THEN |
---|
[94] | 426 | dz_stretched = dz_stretched * dz_stretch_factor |
---|
| 427 | dz_stretched = MIN( dz_stretched, dz_max ) |
---|
| 428 | IF ( dz_stretch_level_index == 0 ) dz_stretch_level_index = k+1 |
---|
| 429 | ENDIF |
---|
| 430 | zu(k) = zu(k+1) - dz_stretched |
---|
| 431 | ENDDO |
---|
| 432 | |
---|
| 433 | ! |
---|
| 434 | !-- Compute the w-levels. They are always staggered half-way between the |
---|
[843] | 435 | !-- corresponding u-levels, except in case of dirichlet bc for u and v |
---|
| 436 | !-- at the ground. In this case the first u- and w-level are defined at |
---|
| 437 | !-- same height. The top w-level (nzt+1) is not used but set for |
---|
| 438 | !-- consistency, since w and all scalar variables are defined up tp nzt+1. |
---|
[94] | 439 | zw(nzt+1) = dz |
---|
[1353] | 440 | zw(nzt) = 0.0_wp |
---|
[94] | 441 | DO k = 0, nzt |
---|
[1353] | 442 | zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp |
---|
[94] | 443 | ENDDO |
---|
| 444 | |
---|
[843] | 445 | ! |
---|
| 446 | !-- In case of dirichlet bc for u and v the first u- and w-level are defined |
---|
| 447 | !-- at same height. |
---|
| 448 | IF ( ibc_uv_b == 0 ) THEN |
---|
| 449 | zu(0) = zw(0) |
---|
| 450 | ENDIF |
---|
| 451 | |
---|
[94] | 452 | ENDIF |
---|
| 453 | |
---|
| 454 | ! |
---|
[1] | 455 | !-- Compute grid lengths. |
---|
| 456 | DO k = 1, nzt+1 |
---|
| 457 | dzu(k) = zu(k) - zu(k-1) |
---|
[1353] | 458 | ddzu(k) = 1.0_wp / dzu(k) |
---|
[1] | 459 | dzw(k) = zw(k) - zw(k-1) |
---|
[1353] | 460 | ddzw(k) = 1.0_wp / dzw(k) |
---|
[1] | 461 | ENDDO |
---|
| 462 | |
---|
| 463 | DO k = 1, nzt |
---|
[1353] | 464 | dd2zu(k) = 1.0_wp / ( dzu(k) + dzu(k+1) ) |
---|
[1] | 465 | ENDDO |
---|
[667] | 466 | |
---|
| 467 | ! |
---|
[709] | 468 | !-- The FFT- SOR-pressure solvers assume grid spacings of a staggered grid |
---|
| 469 | !-- everywhere. For the actual grid, the grid spacing at the lowest level |
---|
| 470 | !-- is only dz/2, but should be dz. Therefore, an additional array |
---|
| 471 | !-- containing with appropriate grid information is created for these |
---|
| 472 | !-- solvers. |
---|
[1575] | 473 | IF ( psolver(1:9) /= 'multigrid' ) THEN |
---|
[667] | 474 | ALLOCATE( ddzu_pres(1:nzt+1) ) |
---|
| 475 | ddzu_pres = ddzu |
---|
[864] | 476 | ddzu_pres(1) = ddzu_pres(2) ! change for lowest level |
---|
[1] | 477 | ENDIF |
---|
| 478 | |
---|
| 479 | ! |
---|
| 480 | !-- Compute the reciprocal values of the horizontal grid lengths. |
---|
[1353] | 481 | ddx = 1.0_wp / dx |
---|
| 482 | ddy = 1.0_wp / dy |
---|
[1] | 483 | dx2 = dx * dx |
---|
| 484 | dy2 = dy * dy |
---|
[1353] | 485 | ddx2 = 1.0_wp / dx2 |
---|
| 486 | ddy2 = 1.0_wp / dy2 |
---|
[1] | 487 | |
---|
| 488 | ! |
---|
| 489 | !-- Compute the grid-dependent mixing length. |
---|
| 490 | DO k = 1, nzt |
---|
[1322] | 491 | l_grid(k) = ( dx * dy * dzw(k) )**0.33333333333333_wp |
---|
[1] | 492 | ENDDO |
---|
| 493 | |
---|
| 494 | ! |
---|
| 495 | !-- Allocate outer and inner index arrays for topography and set |
---|
[2232] | 496 | !-- defaults. |
---|
| 497 | ALLOCATE( nzb_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
[667] | 498 | nzb_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 499 | nzb_u_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 500 | nzb_u_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 501 | nzb_v_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 502 | nzb_v_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 503 | nzb_w_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 504 | nzb_w_outer(nysg:nyng,nxlg:nxrg), & |
---|
| 505 | nzb_diff_s_inner(nysg:nyng,nxlg:nxrg), & |
---|
| 506 | nzb_diff_s_outer(nysg:nyng,nxlg:nxrg), & |
---|
[1968] | 507 | nzb_local(nysg:nyng,nxlg:nxrg), & |
---|
| 508 | nzb_tmp(nysg:nyng,nxlg:nxrg), & |
---|
[2232] | 509 | wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
[1] | 510 | |
---|
[2232] | 511 | ALLOCATE( topo_3d(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 512 | topo_3d = 0 |
---|
[1] | 513 | |
---|
[667] | 514 | ALLOCATE( l_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 515 | |
---|
[1] | 516 | nzb_s_inner = nzb; nzb_s_outer = nzb |
---|
| 517 | nzb_u_inner = nzb; nzb_u_outer = nzb |
---|
| 518 | nzb_v_inner = nzb; nzb_v_outer = nzb |
---|
| 519 | nzb_w_inner = nzb; nzb_w_outer = nzb |
---|
| 520 | |
---|
| 521 | ! |
---|
[19] | 522 | !-- Define vertical gridpoint from (or to) which on the usual finite difference |
---|
[1] | 523 | !-- form (which does not use surface fluxes) is applied |
---|
[1691] | 524 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 525 | nzb_diff = nzb + 2 |
---|
| 526 | ELSE |
---|
| 527 | nzb_diff = nzb + 1 |
---|
| 528 | ENDIF |
---|
| 529 | |
---|
| 530 | nzb_diff_s_inner = nzb_diff; nzb_diff_s_outer = nzb_diff |
---|
| 531 | |
---|
| 532 | ! |
---|
| 533 | !-- Initialize near-wall mixing length l_wall only in the vertical direction |
---|
| 534 | !-- for the moment, |
---|
| 535 | !-- multiplication with wall_adjustment_factor near the end of this routine |
---|
| 536 | l_wall(nzb,:,:) = l_grid(1) |
---|
| 537 | DO k = nzb+1, nzt |
---|
| 538 | l_wall(k,:,:) = l_grid(k) |
---|
| 539 | ENDDO |
---|
| 540 | l_wall(nzt+1,:,:) = l_grid(nzt) |
---|
| 541 | |
---|
| 542 | DO k = 1, nzt |
---|
[1353] | 543 | IF ( l_grid(k) > 1.5_wp * dx * wall_adjustment_factor .OR. & |
---|
| 544 | l_grid(k) > 1.5_wp * dy * wall_adjustment_factor ) THEN |
---|
[254] | 545 | WRITE( message_string, * ) 'grid anisotropy exceeds ', & |
---|
| 546 | 'threshold given by only local', & |
---|
| 547 | ' &horizontal reduction of near_wall ', & |
---|
| 548 | 'mixing length l_wall', & |
---|
| 549 | ' &starting from height level k = ', k, '.' |
---|
| 550 | CALL message( 'init_grid', 'PA0202', 0, 1, 0, 6, 0 ) |
---|
[1] | 551 | EXIT |
---|
| 552 | ENDIF |
---|
| 553 | ENDDO |
---|
| 554 | ! |
---|
| 555 | !-- Set outer and inner index arrays for non-flat topography. |
---|
| 556 | !-- Here consistency checks concerning domain size and periodicity are |
---|
| 557 | !-- necessary. |
---|
| 558 | !-- Within this SELECT CASE structure only nzb_local is initialized |
---|
| 559 | !-- individually depending on the chosen topography type, all other index |
---|
| 560 | !-- arrays are initialized further below. |
---|
| 561 | SELECT CASE ( TRIM( topography ) ) |
---|
| 562 | |
---|
| 563 | CASE ( 'flat' ) |
---|
| 564 | ! |
---|
[555] | 565 | !-- nzb_local is required for the multigrid solver |
---|
| 566 | nzb_local = 0 |
---|
[2232] | 567 | ! |
---|
| 568 | !-- Initialilize 3D topography array, used later for initializing flags |
---|
| 569 | topo_3d(nzb+1:nzt+1,:,:) = IBSET( topo_3d(nzb+1:nzt+1,:,:), 0 ) |
---|
| 570 | ! |
---|
| 571 | !-- level of detail is required for output routines |
---|
| 572 | lod = 1 |
---|
[1] | 573 | |
---|
| 574 | CASE ( 'single_building' ) |
---|
| 575 | ! |
---|
| 576 | !-- Single rectangular building, by default centered in the middle of the |
---|
| 577 | !-- total domain |
---|
| 578 | blx = NINT( building_length_x / dx ) |
---|
| 579 | bly = NINT( building_length_y / dy ) |
---|
[2232] | 580 | bh = MINLOC( ABS( zw - building_height ), 1 ) - 1 |
---|
| 581 | IF ( ABS( zw(bh) - building_height ) == & |
---|
[1675] | 582 | ABS( zw(bh+1) - building_height ) ) bh = bh + 1 |
---|
[1] | 583 | |
---|
[1322] | 584 | IF ( building_wall_left == 9999999.9_wp ) THEN |
---|
[1] | 585 | building_wall_left = ( nx + 1 - blx ) / 2 * dx |
---|
| 586 | ENDIF |
---|
| 587 | bxl = NINT( building_wall_left / dx ) |
---|
| 588 | bxr = bxl + blx |
---|
| 589 | |
---|
[1322] | 590 | IF ( building_wall_south == 9999999.9_wp ) THEN |
---|
[1] | 591 | building_wall_south = ( ny + 1 - bly ) / 2 * dy |
---|
| 592 | ENDIF |
---|
| 593 | bys = NINT( building_wall_south / dy ) |
---|
| 594 | byn = bys + bly |
---|
| 595 | |
---|
| 596 | ! |
---|
| 597 | !-- Building size has to meet some requirements |
---|
| 598 | IF ( ( bxl < 1 ) .OR. ( bxr > nx-1 ) .OR. ( bxr < bxl+3 ) .OR. & |
---|
| 599 | ( bys < 1 ) .OR. ( byn > ny-1 ) .OR. ( byn < bys+3 ) ) THEN |
---|
[274] | 600 | WRITE( message_string, * ) 'inconsistent building parameters:', & |
---|
| 601 | '& bxl=', bxl, 'bxr=', bxr, 'bys=', bys, & |
---|
| 602 | 'byn=', byn, 'nx=', nx, 'ny=', ny |
---|
[254] | 603 | CALL message( 'init_grid', 'PA0203', 1, 2, 0, 6, 0 ) |
---|
[1] | 604 | ENDIF |
---|
| 605 | |
---|
| 606 | ! |
---|
[1968] | 607 | !-- Define the building. |
---|
[1] | 608 | nzb_local = 0 |
---|
[1968] | 609 | IF ( bxl <= nxr .AND. bxr >= nxl .AND. & |
---|
| 610 | bys <= nyn .AND. byn >= nys ) & |
---|
| 611 | nzb_local(MAX(nys,bys):MIN(nyn,byn),MAX(nxl,bxl):MIN(nxr,bxr)) = bh |
---|
[1] | 612 | |
---|
[1994] | 613 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[2232] | 614 | ! |
---|
| 615 | !-- Set bit array to mask topography |
---|
| 616 | DO i = nxlg, nxrg |
---|
| 617 | DO j = nysg, nyng |
---|
[1994] | 618 | |
---|
[2232] | 619 | topo_3d(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 620 | IBSET( topo_3d(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
| 621 | ENDDO |
---|
| 622 | ENDDO |
---|
| 623 | ! |
---|
| 624 | !-- level of detail is required for output routines. Here, 2D topography. |
---|
| 625 | lod = 1 |
---|
| 626 | |
---|
| 627 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
| 628 | |
---|
[240] | 629 | CASE ( 'single_street_canyon' ) |
---|
| 630 | ! |
---|
| 631 | !-- Single quasi-2D street canyon of infinite length in x or y direction. |
---|
| 632 | !-- The canyon is centered in the other direction by default. |
---|
[1322] | 633 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[240] | 634 | ! |
---|
| 635 | !-- Street canyon in y direction |
---|
| 636 | cwx = NINT( canyon_width_x / dx ) |
---|
[1322] | 637 | IF ( canyon_wall_left == 9999999.9_wp ) THEN |
---|
[240] | 638 | canyon_wall_left = ( nx + 1 - cwx ) / 2 * dx |
---|
| 639 | ENDIF |
---|
| 640 | cxl = NINT( canyon_wall_left / dx ) |
---|
| 641 | cxr = cxl + cwx |
---|
| 642 | |
---|
[1322] | 643 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[240] | 644 | ! |
---|
| 645 | !-- Street canyon in x direction |
---|
| 646 | cwy = NINT( canyon_width_y / dy ) |
---|
[1322] | 647 | IF ( canyon_wall_south == 9999999.9_wp ) THEN |
---|
[240] | 648 | canyon_wall_south = ( ny + 1 - cwy ) / 2 * dy |
---|
| 649 | ENDIF |
---|
| 650 | cys = NINT( canyon_wall_south / dy ) |
---|
| 651 | cyn = cys + cwy |
---|
| 652 | |
---|
| 653 | ELSE |
---|
[254] | 654 | |
---|
| 655 | message_string = 'no street canyon width given' |
---|
| 656 | CALL message( 'init_grid', 'PA0204', 1, 2, 0, 6, 0 ) |
---|
| 657 | |
---|
[240] | 658 | ENDIF |
---|
| 659 | |
---|
[2232] | 660 | ch = MINLOC( ABS( zw - canyon_height ), 1 ) - 1 |
---|
| 661 | IF ( ABS( zw(ch) - canyon_height ) == & |
---|
[1675] | 662 | ABS( zw(ch+1) - canyon_height ) ) ch = ch + 1 |
---|
| 663 | |
---|
[240] | 664 | dp_level_ind_b = ch |
---|
| 665 | ! |
---|
| 666 | !-- Street canyon size has to meet some requirements |
---|
[1322] | 667 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1353] | 668 | IF ( ( cxl < 1 ) .OR. ( cxr > nx-1 ) .OR. ( cwx < 3 ) .OR. & |
---|
[240] | 669 | ( ch < 3 ) ) THEN |
---|
[1353] | 670 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 671 | '&cxl=', cxl, 'cxr=', cxr, & |
---|
| 672 | 'cwx=', cwx, & |
---|
[254] | 673 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 674 | CALL message( 'init_grid', 'PA0205', 1, 2, 0, 6, 0 ) |
---|
[240] | 675 | ENDIF |
---|
[1322] | 676 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1353] | 677 | IF ( ( cys < 1 ) .OR. ( cyn > ny-1 ) .OR. ( cwy < 3 ) .OR. & |
---|
[240] | 678 | ( ch < 3 ) ) THEN |
---|
[1353] | 679 | WRITE( message_string, * ) 'inconsistent canyon parameters:', & |
---|
| 680 | '&cys=', cys, 'cyn=', cyn, & |
---|
| 681 | 'cwy=', cwy, & |
---|
[254] | 682 | 'ch=', ch, 'nx=', nx, 'ny=', ny |
---|
| 683 | CALL message( 'init_grid', 'PA0206', 1, 2, 0, 6, 0 ) |
---|
[240] | 684 | ENDIF |
---|
| 685 | ENDIF |
---|
[1353] | 686 | IF ( canyon_width_x /= 9999999.9_wp .AND. & |
---|
| 687 | canyon_width_y /= 9999999.9_wp ) THEN |
---|
| 688 | message_string = 'inconsistent canyon parameters:' // & |
---|
| 689 | '&street canyon can only be oriented' // & |
---|
[254] | 690 | '&either in x- or in y-direction' |
---|
| 691 | CALL message( 'init_grid', 'PA0207', 1, 2, 0, 6, 0 ) |
---|
[240] | 692 | ENDIF |
---|
| 693 | |
---|
| 694 | nzb_local = ch |
---|
[1322] | 695 | IF ( canyon_width_x /= 9999999.9_wp ) THEN |
---|
[1968] | 696 | IF ( cxl <= nxr .AND. cxr >= nxl ) & |
---|
| 697 | nzb_local(:,MAX(nxl,cxl+1):MIN(nxr,cxr-1)) = 0 |
---|
[1322] | 698 | ELSEIF ( canyon_width_y /= 9999999.9_wp ) THEN |
---|
[1968] | 699 | IF ( cys <= nyn .AND. cyn >= nys ) & |
---|
| 700 | nzb_local(MAX(nys,cys+1):MIN(nyn,cyn-1),:) = 0 |
---|
[240] | 701 | ENDIF |
---|
| 702 | |
---|
[1994] | 703 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[2232] | 704 | ! |
---|
| 705 | !-- Set bit array to mask topography |
---|
| 706 | DO i = nxlg, nxrg |
---|
| 707 | DO j = nysg, nyng |
---|
| 708 | topo_3d(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 709 | IBSET( topo_3d(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
| 710 | ENDDO |
---|
| 711 | ENDDO |
---|
| 712 | ! |
---|
| 713 | !-- level of detail is required for output routines. Here, 2D topography. |
---|
| 714 | lod = 1 |
---|
[1994] | 715 | |
---|
[2232] | 716 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
| 717 | |
---|
| 718 | CASE ( 'tunnel' ) |
---|
| 719 | |
---|
| 720 | ! |
---|
| 721 | !-- Tunnel height |
---|
| 722 | IF ( tunnel_height == 9999999.9_wp ) THEN |
---|
| 723 | th = zw( INT( 0.2 * nz) ) |
---|
| 724 | ELSE |
---|
| 725 | th = tunnel_height |
---|
| 726 | ENDIF |
---|
| 727 | ! |
---|
| 728 | !-- Tunnel-wall depth |
---|
| 729 | IF ( tunnel_wall_depth == 9999999.9_wp ) THEN |
---|
| 730 | td = MAX ( dx, dy, dz ) |
---|
| 731 | ELSE |
---|
| 732 | td = tunnel_wall_depth |
---|
| 733 | ENDIF |
---|
| 734 | ! |
---|
| 735 | !-- Check for tunnel width |
---|
| 736 | IF ( tunnel_width_x == 9999999.9_wp .AND. & |
---|
| 737 | tunnel_width_y == 9999999.9_wp ) THEN |
---|
| 738 | message_string = 'No tunnel width is given. ' |
---|
[2274] | 739 | CALL message( 'init_grid', 'PA0280', 1, 2, 0, 6, 0 ) |
---|
[2232] | 740 | ENDIF |
---|
| 741 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 742 | tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 743 | message_string = 'Inconsistent tunnel parameters:' // & |
---|
| 744 | 'tunnel can only be oriented' // & |
---|
| 745 | 'either in x- or in y-direction.' |
---|
[2274] | 746 | CALL message( 'init_grid', 'PA0281', 1, 2, 0, 6, 0 ) |
---|
[2232] | 747 | ENDIF |
---|
| 748 | ! |
---|
| 749 | !-- Tunnel axis along y |
---|
| 750 | IF ( tunnel_width_x /= 9999999.9_wp ) THEN |
---|
| 751 | IF ( tunnel_width_x > ( nx + 1 ) * dx ) THEN |
---|
| 752 | message_string = 'Tunnel width too large' |
---|
[2274] | 753 | CALL message( 'init_grid', 'PA0282', 1, 2, 0, 6, 0 ) |
---|
[2232] | 754 | ENDIF |
---|
| 755 | |
---|
| 756 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_width_x * 0.5_wp ) |
---|
| 757 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_width_x * 0.5_wp ) |
---|
| 758 | txs_in = INT( ( nx + 1 ) * 0.5_wp * dx - & |
---|
| 759 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
| 760 | txe_in = INT( ( nx + 1 ) * 0.5_wp * dx + & |
---|
| 761 | ( tunnel_width_x * 0.5_wp - td ) ) |
---|
| 762 | |
---|
| 763 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_length * 0.5_wp ) |
---|
| 764 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_length * 0.5_wp ) |
---|
| 765 | tys_in = tys_out |
---|
| 766 | tye_in = tye_out |
---|
| 767 | ENDIF |
---|
| 768 | IF ( tunnel_width_x /= 9999999.9_wp .AND. & |
---|
| 769 | tunnel_width_x - 2.0_wp * tunnel_wall_depth <= 2.0_wp * dx ) THEN |
---|
| 770 | message_string = 'Tunnel width too small' |
---|
[2274] | 771 | CALL message( 'init_grid', 'PA0175', 1, 2, 0, 6, 0 ) |
---|
[2232] | 772 | ENDIF |
---|
| 773 | IF ( tunnel_width_y /= 9999999.9_wp .AND. & |
---|
| 774 | tunnel_width_y - 2.0_wp * tunnel_wall_depth <= 2.0_wp * dy ) THEN |
---|
| 775 | message_string = 'Tunnel width too small' |
---|
[2274] | 776 | CALL message( 'init_grid', 'PA0455', 1, 2, 0, 6, 0 ) |
---|
[2232] | 777 | ENDIF |
---|
| 778 | ! |
---|
| 779 | !-- Tunnel axis along x |
---|
| 780 | IF ( tunnel_width_y /= 9999999.9_wp ) THEN |
---|
| 781 | IF ( tunnel_width_y > ( ny + 1 ) * dy ) THEN |
---|
| 782 | message_string = 'Tunnel width too large' |
---|
[2274] | 783 | CALL message( 'init_grid', 'PA0456', 1, 2, 0, 6, 0 ) |
---|
[2232] | 784 | ENDIF |
---|
| 785 | |
---|
| 786 | txs_out = INT( ( nx + 1 ) * 0.5_wp * dx - tunnel_length * 0.5_wp ) |
---|
| 787 | txe_out = INT( ( nx + 1 ) * 0.5_wp * dx + tunnel_length * 0.5_wp ) |
---|
| 788 | txs_in = txs_out |
---|
| 789 | txe_in = txe_out |
---|
| 790 | |
---|
| 791 | tys_out = INT( ( ny + 1 ) * 0.5_wp * dy - tunnel_width_y * 0.5_wp ) |
---|
| 792 | tye_out = INT( ( ny + 1 ) * 0.5_wp * dy + tunnel_width_y * 0.5_wp ) |
---|
| 793 | tys_in = INT( ( ny + 1 ) * 0.5_wp * dy - & |
---|
| 794 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
| 795 | tye_in = INT( ( ny + 1 ) * 0.5_wp * dy + & |
---|
| 796 | ( tunnel_width_y * 0.5_wp - td ) ) |
---|
| 797 | ENDIF |
---|
| 798 | |
---|
| 799 | topo_3d = 0 |
---|
| 800 | DO i = nxl, nxr |
---|
| 801 | DO j = nys, nyn |
---|
| 802 | ! |
---|
| 803 | !-- Use heaviside function to model outer tunnel surface |
---|
| 804 | hv_out = th * 0.5_wp * & |
---|
| 805 | ( ( SIGN( 1.0_wp, i * dx - txs_out ) + 1.0_wp ) & |
---|
| 806 | - ( SIGN( 1.0_wp, i * dx - txe_out ) + 1.0_wp ) ) |
---|
| 807 | |
---|
| 808 | hv_out = hv_out * 0.5_wp * & |
---|
| 809 | ( ( SIGN( 1.0_wp, j * dy - tys_out ) + 1.0_wp ) & |
---|
| 810 | - ( SIGN( 1.0_wp, j * dy - tye_out ) + 1.0_wp ) ) |
---|
| 811 | ! |
---|
| 812 | !-- Use heaviside function to model inner tunnel surface |
---|
| 813 | hv_in = ( th - td ) * 0.5_wp * & |
---|
| 814 | ( ( SIGN( 1.0_wp, i * dx - txs_in ) + 1.0_wp ) & |
---|
| 815 | - ( SIGN( 1.0_wp, i * dx - txe_in ) + 1.0_wp ) ) |
---|
| 816 | |
---|
| 817 | hv_in = hv_in * 0.5_wp * & |
---|
| 818 | ( ( SIGN( 1.0_wp, j * dy - tys_in ) + 1.0_wp ) & |
---|
| 819 | - ( SIGN( 1.0_wp, j * dy - tye_in ) + 1.0_wp ) ) |
---|
| 820 | ! |
---|
| 821 | !-- Set flags at x-y-positions without any tunnel surface |
---|
| 822 | IF ( hv_out - hv_in == 0.0_wp ) THEN |
---|
| 823 | topo_3d(nzb+1:nzt+1,j,i) = IBSET( topo_3d(nzb+1:nzt+1,j,i), 0 ) |
---|
| 824 | ! |
---|
| 825 | !-- Set flags at x-y-positions with tunnel surfaces |
---|
| 826 | ELSE |
---|
| 827 | DO k = nzb + 1, nzt + 1 |
---|
| 828 | ! |
---|
| 829 | !-- Inner tunnel |
---|
| 830 | IF ( hv_out - hv_in == th ) THEN |
---|
| 831 | IF ( zw(k) <= hv_out ) THEN |
---|
| 832 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 833 | ELSE |
---|
| 834 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 0 ) |
---|
| 835 | ENDIF |
---|
| 836 | ENDIF |
---|
| 837 | ! |
---|
| 838 | !-- Lateral tunnel walls |
---|
| 839 | IF ( hv_out - hv_in == td ) THEN |
---|
| 840 | IF ( zw(k) <= hv_in ) THEN |
---|
| 841 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 0 ) |
---|
| 842 | ELSEIF ( zw(k) > hv_in .AND. zw(k) <= hv_out ) THEN |
---|
| 843 | topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) |
---|
| 844 | ELSEIF ( zw(k) > hv_out ) THEN |
---|
| 845 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 0 ) |
---|
| 846 | ENDIF |
---|
| 847 | ENDIF |
---|
| 848 | ENDDO |
---|
| 849 | ENDIF |
---|
| 850 | ENDDO |
---|
| 851 | ENDDO |
---|
| 852 | |
---|
| 853 | nzb_local = 0 |
---|
| 854 | ! |
---|
| 855 | !-- level of detail is required for output routines. Here, 3D topography. |
---|
| 856 | lod = 2 |
---|
| 857 | |
---|
| 858 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
| 859 | |
---|
[1] | 860 | CASE ( 'read_from_file' ) |
---|
[759] | 861 | |
---|
[2232] | 862 | ALLOCATE ( oro_height(nys:nyn,nxl:nxr) ) |
---|
[1968] | 863 | ALLOCATE ( topo_height(nys:nyn,nxl:nxr) ) |
---|
[2232] | 864 | oro_height = 0.0_wp |
---|
| 865 | topo_height = 0.0_wp |
---|
[818] | 866 | |
---|
[759] | 867 | DO ii = 0, io_blocks-1 |
---|
| 868 | IF ( ii == io_group ) THEN |
---|
| 869 | |
---|
[1] | 870 | ! |
---|
[759] | 871 | !-- Arbitrary irregular topography data in PALM format (exactly |
---|
[2232] | 872 | !-- matching the grid size and total domain size). |
---|
| 873 | !-- First, check if NetCDF file for topography exist or not. |
---|
| 874 | !-- This case, read topography from NetCDF, else read it from |
---|
| 875 | !-- ASCII file. |
---|
| 876 | #if defined ( __netcdf ) |
---|
| 877 | INQUIRE( FILE='TOPOGRAPHY_DATA_NC'//TRIM( coupling_char ), & |
---|
| 878 | EXIST=netcdf_extend ) |
---|
[1968] | 879 | ! |
---|
[2232] | 880 | !-- NetCDF branch |
---|
| 881 | IF ( netcdf_extend ) THEN |
---|
[1968] | 882 | ! |
---|
[2232] | 883 | !-- Open file in read-only mode |
---|
| 884 | CALL netcdf_open_read_file( 'TOPOGRAPHY_DATA_NC', & |
---|
| 885 | id_topo, 20 ) !Error number still need to be set properly |
---|
| 886 | |
---|
| 887 | ! |
---|
| 888 | !-- Read terrain height. Reading is done PE-wise, i.e. each |
---|
| 889 | !-- processor reads its own domain. Reading is realized |
---|
| 890 | !-- via looping over x-dimension, i.e. calling |
---|
| 891 | !-- netcdf_get_variable reads topography along y for given x. |
---|
| 892 | !-- Orography is 2D. |
---|
| 893 | DO i = nxl, nxr |
---|
| 894 | CALL netcdf_get_variable( id_topo, 'orography_0', & |
---|
| 895 | i, oro_height(:,i), 20 ) !Error number still need to be set properly |
---|
| 896 | ENDDO |
---|
| 897 | ! |
---|
| 898 | !-- Read attribute lod (level of detail), required for variable |
---|
| 899 | !-- buildings_0 |
---|
| 900 | CALL netcdf_get_attribute( id_topo, "lod", lod, .FALSE., & |
---|
| 901 | 20, 'buildings_0' ) !Error number still need to be set properly |
---|
| 902 | ! |
---|
| 903 | !-- Read building height |
---|
| 904 | !-- 2D for lod = 1, 3D for lod = 2 |
---|
| 905 | IF ( lod == 1 ) THEN |
---|
| 906 | DO i = nxl, nxr |
---|
| 907 | CALL netcdf_get_variable( id_topo, 'buildings_0', & |
---|
| 908 | i, topo_height(:,i), 20 ) !Error number still need to be set properly |
---|
| 909 | ENDDO |
---|
| 910 | |
---|
| 911 | ELSEIF ( lod == 2 ) THEN |
---|
| 912 | ! |
---|
[2302] | 913 | !-- Allocate 1-byte integer dummy array to read 3D topography |
---|
| 914 | ALLOCATE( topo_3d_read(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 915 | ! |
---|
[2232] | 916 | !-- Read data PE-wise. Read yz-slices. |
---|
| 917 | DO i = nxl, nxr |
---|
| 918 | DO j = nys, nyn |
---|
| 919 | CALL netcdf_get_variable( id_topo, 'buildings_0', & |
---|
[2302] | 920 | i, j, topo_3d_read(:,j,i), 20 ) !Error number still need to be set properly |
---|
[2232] | 921 | ENDDO |
---|
| 922 | ENDDO |
---|
| 923 | ELSE |
---|
| 924 | message_string = 'NetCDF attribute lod ' // & |
---|
| 925 | '(level of detail) is not set properly.' |
---|
[2274] | 926 | CALL message( 'init_grid', 'PA0457', 1, 2, 0, 6, 0 ) |
---|
[2232] | 927 | ENDIF |
---|
| 928 | ! |
---|
[2302] | 929 | !-- On file, 3D topography grid points is classified with 1, |
---|
| 930 | !-- atmosphere is classified with 0, contrary to the internal |
---|
| 931 | !-- treatment. Hence, conversion is required. Moreover, set |
---|
| 932 | !-- topography array to zero at lowest grid level. |
---|
| 933 | topo_3d = MERGE( 0, 1, topo_3d_read == 1 ) |
---|
| 934 | topo_3d(nzb,:,:) = 0 |
---|
| 935 | ! |
---|
| 936 | !-- Deallocate dummy array |
---|
| 937 | DEALLOCATE( topo_3d_read ) |
---|
| 938 | ! |
---|
[2232] | 939 | !-- Close topography input file |
---|
| 940 | CALL netcdf_close_file( id_topo, 20 ) |
---|
| 941 | #endif |
---|
| 942 | |
---|
| 943 | ! |
---|
| 944 | !-- ASCII branch. Please note, reading of 3D topography is not |
---|
| 945 | !-- supported in ASCII format. Further, no distinction is made |
---|
| 946 | !-- between orography and buildings |
---|
| 947 | ELSE |
---|
| 948 | |
---|
| 949 | OPEN( 90, FILE='TOPOGRAPHY_DATA'//TRIM( coupling_char ), & |
---|
| 950 | STATUS='OLD', FORM='FORMATTED', ERR=10 ) |
---|
| 951 | ! |
---|
| 952 | !-- Read topography PE-wise. Rows are read from nyn to nys, columns |
---|
| 953 | !-- are read from nxl to nxr. At first, ny-nyn rows need to be skipped. |
---|
| 954 | skip_n_rows = 0 |
---|
| 955 | DO WHILE ( skip_n_rows < ny - nyn ) |
---|
| 956 | READ( 90, * ) |
---|
| 957 | skip_n_rows = skip_n_rows + 1 |
---|
| 958 | ENDDO |
---|
| 959 | ! |
---|
| 960 | !-- Read data from nyn to nys and nxl to nxr. Therefore, skip |
---|
| 961 | !-- column until nxl-1 is reached |
---|
| 962 | DO j = nyn, nys, -1 |
---|
| 963 | READ( 90, *, ERR=11, END=11 ) & |
---|
[1968] | 964 | ( dum, i = 0, nxl-1 ), & |
---|
| 965 | ( topo_height(j,i), i = nxl, nxr ) |
---|
[2232] | 966 | ENDDO |
---|
[759] | 967 | |
---|
[2232] | 968 | GOTO 12 |
---|
[759] | 969 | |
---|
[2232] | 970 | 10 message_string = 'file TOPOGRAPHY'//TRIM( coupling_char )// & |
---|
| 971 | ' does not exist' |
---|
| 972 | CALL message( 'init_grid', 'PA0208', 1, 2, 0, 6, 0 ) |
---|
[759] | 973 | |
---|
[2232] | 974 | 11 message_string = 'errors in file TOPOGRAPHY_DATA'// & |
---|
| 975 | TRIM( coupling_char ) |
---|
| 976 | CALL message( 'init_grid', 'PA0209', 1, 2, 0, 6, 0 ) |
---|
[759] | 977 | |
---|
[2232] | 978 | 12 CLOSE( 90 ) |
---|
[759] | 979 | |
---|
[2232] | 980 | ENDIF |
---|
| 981 | |
---|
[759] | 982 | ENDIF |
---|
[1804] | 983 | #if defined( __parallel ) |
---|
[759] | 984 | CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 985 | #endif |
---|
[559] | 986 | ENDDO |
---|
[759] | 987 | |
---|
[1] | 988 | ! |
---|
| 989 | !-- Calculate the index height of the topography |
---|
[1968] | 990 | nzb_local = 0 |
---|
| 991 | DO i = nxl, nxr |
---|
| 992 | DO j = nys, nyn |
---|
[2128] | 993 | IF ( .NOT. ocean ) THEN |
---|
[2232] | 994 | nzb_local(j,i) = MINLOC( ABS( zw - topo_height(j,i) & |
---|
| 995 | - oro_height(j,i) ), 1 ) - 1 |
---|
| 996 | IF ( ABS( zw(nzb_local(j,i) ) - topo_height(j,i) & |
---|
| 997 | - oro_height(j,i) ) == & |
---|
| 998 | ABS( zw(nzb_local(j,i)+1) - topo_height(j,i) & |
---|
| 999 | - oro_height(j,i) ) ) & |
---|
[2128] | 1000 | nzb_local(j,i) = nzb_local(j,i) + 1 |
---|
| 1001 | ELSE |
---|
| 1002 | nzb_local(j,i) = MINLOC( ABS( zw - zw(0) & |
---|
[2232] | 1003 | - topo_height(j,i) & |
---|
| 1004 | - oro_height(j,i) ), 1 ) - 1 |
---|
[2128] | 1005 | IF ( ABS( zw(nzb_local(j,i) ) - zw(0) & |
---|
[2232] | 1006 | - topo_height(j,i) & |
---|
| 1007 | - oro_height(j,i) ) == & |
---|
[2128] | 1008 | ABS( zw(nzb_local(j,i)+1) - zw(0) & |
---|
[2232] | 1009 | - topo_height(j,i) & |
---|
| 1010 | - oro_height(j,i) ) ) & |
---|
[2128] | 1011 | nzb_local(j,i) = nzb_local(j,i) + 1 |
---|
| 1012 | ENDIF |
---|
| 1013 | |
---|
[1] | 1014 | ENDDO |
---|
| 1015 | ENDDO |
---|
[818] | 1016 | |
---|
[2232] | 1017 | DEALLOCATE ( oro_height ) |
---|
[818] | 1018 | DEALLOCATE ( topo_height ) |
---|
[1942] | 1019 | ! |
---|
| 1020 | !-- Filter topography, i.e. fill holes resolved by only one grid point. |
---|
| 1021 | !-- Such holes are suspected to lead to velocity blow-ups as continuity |
---|
| 1022 | !-- equation on discrete grid cannot be fulfilled in such case. |
---|
| 1023 | !-- For now, check only for holes and fill them to the lowest height level |
---|
| 1024 | !-- of the directly adjoining grid points along x- and y- direction. |
---|
| 1025 | !-- Before checking for holes, set lateral boundary conditions for |
---|
| 1026 | !-- topography. After hole-filling, boundary conditions must be set again! |
---|
[1968] | 1027 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1028 | |
---|
| 1029 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1030 | IF ( nys == 0 ) nzb_local(-1,:) = nzb_local(0,:) |
---|
| 1031 | IF ( nyn == ny ) nzb_local(ny+1,:) = nzb_local(ny,:) |
---|
[1942] | 1032 | ENDIF |
---|
[1910] | 1033 | |
---|
[1968] | 1034 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1035 | IF ( nxl == 0 ) nzb_local(:,-1) = nzb_local(:,0) |
---|
| 1036 | IF ( nxr == nx ) nzb_local(:,nx+1) = nzb_local(:,nx) |
---|
[1942] | 1037 | ENDIF |
---|
| 1038 | |
---|
[1968] | 1039 | num_hole_l = 0 |
---|
| 1040 | DO i = nxl, nxr |
---|
| 1041 | DO j = nys, nyn |
---|
[1942] | 1042 | |
---|
| 1043 | num_wall = 0 |
---|
| 1044 | |
---|
| 1045 | IF ( nzb_local(j-1,i) > nzb_local(j,i) ) & |
---|
| 1046 | num_wall = num_wall + 1 |
---|
| 1047 | IF ( nzb_local(j+1,i) > nzb_local(j,i) ) & |
---|
| 1048 | num_wall = num_wall + 1 |
---|
| 1049 | IF ( nzb_local(j,i-1) > nzb_local(j,i) ) & |
---|
| 1050 | num_wall = num_wall + 1 |
---|
| 1051 | IF ( nzb_local(j,i+1) > nzb_local(j,i) ) & |
---|
| 1052 | num_wall = num_wall + 1 |
---|
| 1053 | |
---|
| 1054 | IF ( num_wall == 4 ) THEN |
---|
| 1055 | nzb_local(j,i) = MIN( nzb_local(j-1,i), nzb_local(j+1,i), & |
---|
| 1056 | nzb_local(j,i-1), nzb_local(j,i+1) ) |
---|
[1968] | 1057 | num_hole_l = num_hole_l + 1 |
---|
[1942] | 1058 | ENDIF |
---|
| 1059 | ENDDO |
---|
| 1060 | ENDDO |
---|
[114] | 1061 | ! |
---|
[1968] | 1062 | !-- Count the total number of holes, required for informative message. |
---|
| 1063 | #if defined( __parallel ) |
---|
| 1064 | CALL MPI_ALLREDUCE( num_hole_l, num_hole, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 1065 | comm2d, ierr ) |
---|
| 1066 | #else |
---|
| 1067 | num_hole = num_hole_l |
---|
| 1068 | #endif |
---|
| 1069 | ! |
---|
[1942] | 1070 | !-- Create an informative message if any hole was removed. |
---|
[1968] | 1071 | IF ( num_hole > 0 ) THEN |
---|
[1942] | 1072 | WRITE( message_string, * ) num_hole, 'hole(s) resolved by only '//& |
---|
| 1073 | 'one grid point were filled' |
---|
| 1074 | CALL message( 'init_grid', 'PA0430', 0, 0, 0, 6, 0 ) |
---|
| 1075 | ENDIF |
---|
[2232] | 1076 | |
---|
[1942] | 1077 | ! |
---|
[2232] | 1078 | !-- Set bit array to mask topography. Only required for lod = 1 |
---|
| 1079 | IF ( lod == 1 ) THEN |
---|
| 1080 | DO i = nxlg, nxrg |
---|
| 1081 | DO j = nysg, nyng |
---|
| 1082 | topo_3d(nzb_local(j,i)+1:nzt+1,j,i) = & |
---|
| 1083 | IBSET( topo_3d(nzb_local(j,i)+1:nzt+1,j,i), 0 ) |
---|
| 1084 | ENDDO |
---|
| 1085 | ENDDO |
---|
| 1086 | ENDIF |
---|
| 1087 | ! |
---|
[1968] | 1088 | !-- Exchange ghost-points, as well as add cyclic or Neumann boundary |
---|
| 1089 | !-- conditions. |
---|
[2232] | 1090 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
[1968] | 1091 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1092 | |
---|
| 1093 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2232] | 1094 | IF ( nys == 0 ) topo_3d(:,-1,:) = topo_3d(:,0,:) |
---|
| 1095 | IF ( nyn == ny ) topo_3d(:,ny+1,:) = topo_3d(:,ny,:) |
---|
| 1096 | |
---|
[1968] | 1097 | IF ( nys == 0 ) nzb_local(-1,:) = nzb_local(0,:) |
---|
| 1098 | IF ( nyn == ny ) nzb_local(ny+1,:) = nzb_local(ny,:) |
---|
[1910] | 1099 | ENDIF |
---|
[667] | 1100 | |
---|
[1968] | 1101 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[2232] | 1102 | IF ( nxl == 0 ) topo_3d(:,:,-1) = topo_3d(:,:,0) |
---|
| 1103 | IF ( nxr == nx ) topo_3d(:,:,nx+1) = topo_3d(:,:,nx) |
---|
| 1104 | |
---|
[1968] | 1105 | IF ( nxl == 0 ) nzb_local(:,-1) = nzb_local(:,0) |
---|
| 1106 | IF ( nxr == nx ) nzb_local(:,nx+1) = nzb_local(:,nx) |
---|
[1910] | 1107 | ENDIF |
---|
| 1108 | |
---|
[2232] | 1109 | |
---|
[1] | 1110 | CASE DEFAULT |
---|
| 1111 | ! |
---|
| 1112 | !-- The DEFAULT case is reached either if the parameter topography |
---|
[217] | 1113 | !-- contains a wrong character string or if the user has defined a special |
---|
[1] | 1114 | !-- case in the user interface. There, the subroutine user_init_grid |
---|
| 1115 | !-- checks which of these two conditions applies. |
---|
[2232] | 1116 | CALL user_init_grid( topo_3d ) |
---|
[1] | 1117 | |
---|
| 1118 | END SELECT |
---|
| 1119 | ! |
---|
| 1120 | !-- Consistency checks and index array initialization are only required for |
---|
[217] | 1121 | !-- non-flat topography, also the initialization of topography height arrays |
---|
[49] | 1122 | !-- zu_s_inner and zw_w_inner |
---|
[1] | 1123 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
[1968] | 1124 | #if defined( __parallel ) |
---|
| 1125 | CALL MPI_ALLREDUCE( MAXVAL( nzb_local ), nzb_local_max, 1, MPI_INTEGER, & |
---|
| 1126 | MPI_MAX, comm2d, ierr ) |
---|
[1982] | 1127 | CALL MPI_ALLREDUCE( MINVAL( nzb_local ), nzb_local_min, 1, MPI_INTEGER, & |
---|
[1968] | 1128 | MPI_MIN, comm2d, ierr ) |
---|
| 1129 | #else |
---|
| 1130 | nzb_local_max = MAXVAL( nzb_local ) |
---|
| 1131 | nzb_local_min = MINVAL( nzb_local ) |
---|
| 1132 | #endif |
---|
[1982] | 1133 | |
---|
[1] | 1134 | ! |
---|
| 1135 | !-- Consistency checks |
---|
[1968] | 1136 | IF ( nzb_local_min < 0 .OR. nzb_local_max > nz + 1 ) THEN |
---|
[1353] | 1137 | WRITE( message_string, * ) 'nzb_local values are outside the', & |
---|
| 1138 | 'model domain', & |
---|
[1968] | 1139 | '&MINVAL( nzb_local ) = ', nzb_local_min, & |
---|
| 1140 | '&MAXVAL( nzb_local ) = ', nzb_local_max |
---|
[254] | 1141 | CALL message( 'init_grid', 'PA0210', 1, 2, 0, 6, 0 ) |
---|
[1] | 1142 | ENDIF |
---|
[2232] | 1143 | ! |
---|
| 1144 | !-- In case of non-flat topography, check whether the convention how to |
---|
| 1145 | !-- define the topography grid has been set correctly, or whether the default |
---|
| 1146 | !-- is applicable. If this is not possible, abort. |
---|
| 1147 | IF ( TRIM( topography_grid_convention ) == ' ' ) THEN |
---|
| 1148 | IF ( TRIM( topography ) /= 'single_building' .AND. & |
---|
| 1149 | TRIM( topography ) /= 'single_street_canyon' .AND. & |
---|
| 1150 | TRIM( topography ) /= 'tunnel' .AND. & |
---|
| 1151 | TRIM( topography ) /= 'read_from_file') THEN |
---|
| 1152 | !-- The default value is not applicable here, because it is only valid |
---|
| 1153 | !-- for the two standard cases 'single_building' and 'read_from_file' |
---|
| 1154 | !-- defined in init_grid. |
---|
| 1155 | WRITE( message_string, * ) & |
---|
| 1156 | 'The value for "topography_grid_convention" ', & |
---|
| 1157 | 'is not set. Its default value is & only valid for ', & |
---|
| 1158 | '"topography" = ''single_building'', ', & |
---|
| 1159 | '''single_street_canyon'' & or ''read_from_file''.', & |
---|
| 1160 | ' & Choose ''cell_edge'' or ''cell_center''.' |
---|
| 1161 | CALL message( 'init_grid', 'PA0239', 1, 2, 0, 6, 0 ) |
---|
| 1162 | ELSE |
---|
| 1163 | !-- The default value is applicable here. |
---|
| 1164 | !-- Set convention according to topography. |
---|
| 1165 | IF ( TRIM( topography ) == 'single_building' .OR. & |
---|
| 1166 | TRIM( topography ) == 'single_street_canyon' ) THEN |
---|
| 1167 | topography_grid_convention = 'cell_edge' |
---|
| 1168 | ELSEIF ( TRIM( topography ) == 'read_from_file' .OR. & |
---|
| 1169 | TRIM( topography ) == 'tunnel') THEN |
---|
| 1170 | topography_grid_convention = 'cell_center' |
---|
| 1171 | ENDIF |
---|
| 1172 | ENDIF |
---|
| 1173 | ELSEIF ( TRIM( topography_grid_convention ) /= 'cell_edge' .AND. & |
---|
| 1174 | TRIM( topography_grid_convention ) /= 'cell_center' ) THEN |
---|
| 1175 | WRITE( message_string, * ) & |
---|
| 1176 | 'The value for "topography_grid_convention" is ', & |
---|
| 1177 | 'not recognized. & Choose ''cell_edge'' or ''cell_center''.' |
---|
| 1178 | CALL message( 'init_grid', 'PA0240', 1, 2, 0, 6, 0 ) |
---|
| 1179 | ENDIF |
---|
[1] | 1180 | |
---|
[2169] | 1181 | ! |
---|
| 1182 | !-- In case of non-flat topography, check whether the convention how to |
---|
| 1183 | !-- define the topography grid has been set correctly, or whether the default |
---|
| 1184 | !-- is applicable. If this is not possible, abort. |
---|
| 1185 | IF ( TRIM( topography_grid_convention ) == ' ' ) THEN |
---|
| 1186 | IF ( TRIM( topography ) /= 'single_building' .AND. & |
---|
| 1187 | TRIM( topography ) /= 'single_street_canyon' .AND. & |
---|
| 1188 | TRIM( topography ) /= 'read_from_file' ) THEN |
---|
| 1189 | !-- The default value is not applicable here, because it is only valid |
---|
| 1190 | !-- for the two standard cases 'single_building' and 'read_from_file' |
---|
| 1191 | !-- defined in init_grid. |
---|
| 1192 | WRITE( message_string, * ) & |
---|
| 1193 | 'The value for "topography_grid_convention" ', & |
---|
| 1194 | 'is not set. Its default value is & only valid for ', & |
---|
| 1195 | '"topography" = ''single_building'', ', & |
---|
| 1196 | '''single_street_canyon'' & or ''read_from_file''.', & |
---|
| 1197 | ' & Choose ''cell_edge'' or ''cell_center''.' |
---|
| 1198 | CALL message( 'init_grid', 'PA0239', 1, 2, 0, 6, 0 ) |
---|
| 1199 | ELSE |
---|
| 1200 | !-- The default value is applicable here. |
---|
| 1201 | !-- Set convention according to topography. |
---|
| 1202 | IF ( TRIM( topography ) == 'single_building' .OR. & |
---|
| 1203 | TRIM( topography ) == 'single_street_canyon' ) THEN |
---|
| 1204 | topography_grid_convention = 'cell_edge' |
---|
| 1205 | ELSEIF ( TRIM( topography ) == 'read_from_file' ) THEN |
---|
| 1206 | topography_grid_convention = 'cell_center' |
---|
| 1207 | ENDIF |
---|
| 1208 | ENDIF |
---|
| 1209 | ELSEIF ( TRIM( topography_grid_convention ) /= 'cell_edge' .AND. & |
---|
| 1210 | TRIM( topography_grid_convention ) /= 'cell_center' ) THEN |
---|
| 1211 | WRITE( message_string, * ) & |
---|
| 1212 | 'The value for "topography_grid_convention" is ', & |
---|
| 1213 | 'not recognized. & Choose ''cell_edge'' or ''cell_center''.' |
---|
| 1214 | CALL message( 'init_grid', 'PA0240', 1, 2, 0, 6, 0 ) |
---|
| 1215 | ENDIF |
---|
| 1216 | |
---|
[217] | 1217 | IF ( topography_grid_convention == 'cell_edge' ) THEN |
---|
[134] | 1218 | ! |
---|
[217] | 1219 | !-- The array nzb_local as defined using the 'cell_edge' convention |
---|
| 1220 | !-- describes the actual total size of topography which is defined at the |
---|
| 1221 | !-- cell edges where u=0 on the topography walls in x-direction and v=0 |
---|
| 1222 | !-- on the topography walls in y-direction. However, PALM uses individual |
---|
| 1223 | !-- arrays nzb_u|v|w|s_inner|outer that are based on nzb_s_inner. |
---|
| 1224 | !-- Therefore, the extent of topography in nzb_local is now reduced by |
---|
| 1225 | !-- 1dx at the E topography walls and by 1dy at the N topography walls |
---|
[1968] | 1226 | !-- to form the basis for nzb_s_inner. |
---|
| 1227 | !-- Note, the reverse memory access (i-j instead of j-i) is absolutely |
---|
| 1228 | !-- required at this point. |
---|
| 1229 | DO j = nys+1, nyn+1 |
---|
| 1230 | DO i = nxl-1, nxr |
---|
[217] | 1231 | nzb_local(j,i) = MIN( nzb_local(j,i), nzb_local(j,i+1) ) |
---|
| 1232 | ENDDO |
---|
[134] | 1233 | ENDDO |
---|
[1968] | 1234 | ! |
---|
| 1235 | !-- Exchange ghost points |
---|
| 1236 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1237 | |
---|
| 1238 | DO i = nxl, nxr+1 |
---|
| 1239 | DO j = nys-1, nyn |
---|
[217] | 1240 | nzb_local(j,i) = MIN( nzb_local(j,i), nzb_local(j+1,i) ) |
---|
| 1241 | ENDDO |
---|
[2232] | 1242 | ENDDO |
---|
[1968] | 1243 | ! |
---|
| 1244 | !-- Exchange ghost points |
---|
| 1245 | CALL exchange_horiz_2d_int( nzb_local, nys, nyn, nxl, nxr, nbgp ) |
---|
[2232] | 1246 | ! |
---|
| 1247 | !-- Apply cell-edge convention also for 3D topo array. The former setting |
---|
| 1248 | !-- of nzb_local will be removed later. |
---|
| 1249 | DO j = nys+1, nyn+1 |
---|
| 1250 | DO i = nxl-1, nxr |
---|
| 1251 | DO k = nzb, nzt+1 |
---|
| 1252 | IF ( BTEST( topo_3d(k,j,i), 0 ) .OR. & |
---|
| 1253 | BTEST( topo_3d(k,j,i+1), 0 ) ) & |
---|
| 1254 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 0 ) |
---|
| 1255 | ENDDO |
---|
| 1256 | ENDDO |
---|
| 1257 | ENDDO |
---|
| 1258 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
| 1259 | |
---|
| 1260 | DO i = nxl, nxr+1 |
---|
| 1261 | DO j = nys-1, nyn |
---|
| 1262 | DO k = nzb, nzt+1 |
---|
| 1263 | IF ( BTEST( topo_3d(k,j,i), 0 ) .OR. & |
---|
| 1264 | BTEST( topo_3d(k,j+1,i), 0 ) ) & |
---|
| 1265 | topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 0 ) |
---|
| 1266 | ENDDO |
---|
| 1267 | ENDDO |
---|
| 1268 | ENDDO |
---|
| 1269 | CALL exchange_horiz_int( topo_3d, nbgp ) |
---|
| 1270 | |
---|
[217] | 1271 | ENDIF |
---|
[2232] | 1272 | |
---|
[1] | 1273 | ! |
---|
| 1274 | !-- Initialize index arrays nzb_s_inner and nzb_w_inner |
---|
[2232] | 1275 | |
---|
[1968] | 1276 | nzb_s_inner = nzb_local |
---|
| 1277 | nzb_w_inner = nzb_local |
---|
[1] | 1278 | |
---|
| 1279 | ! |
---|
| 1280 | !-- Initialize remaining index arrays: |
---|
| 1281 | !-- first pre-initialize them with nzb_s_inner... |
---|
| 1282 | nzb_u_inner = nzb_s_inner |
---|
| 1283 | nzb_u_outer = nzb_s_inner |
---|
| 1284 | nzb_v_inner = nzb_s_inner |
---|
| 1285 | nzb_v_outer = nzb_s_inner |
---|
| 1286 | nzb_w_outer = nzb_s_inner |
---|
| 1287 | nzb_s_outer = nzb_s_inner |
---|
| 1288 | |
---|
| 1289 | ! |
---|
| 1290 | !-- ...then extend pre-initialized arrays in their according directions |
---|
| 1291 | !-- based on nzb_local using nzb_tmp as a temporary global index array |
---|
| 1292 | |
---|
| 1293 | ! |
---|
| 1294 | !-- nzb_s_outer: |
---|
| 1295 | !-- extend nzb_local east-/westwards first, then north-/southwards |
---|
[1968] | 1296 | nzb_tmp = nzb_local |
---|
| 1297 | DO j = nys, nyn |
---|
| 1298 | DO i = nxl, nxr |
---|
[1353] | 1299 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i), & |
---|
[1] | 1300 | nzb_local(j,i+1) ) |
---|
| 1301 | ENDDO |
---|
| 1302 | ENDDO |
---|
[1968] | 1303 | |
---|
| 1304 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1305 | |
---|
[1] | 1306 | DO i = nxl, nxr |
---|
| 1307 | DO j = nys, nyn |
---|
[1353] | 1308 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
[1] | 1309 | nzb_tmp(j+1,i) ) |
---|
| 1310 | ENDDO |
---|
| 1311 | ! |
---|
| 1312 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1313 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1314 | IF ( nys == 0 ) THEN |
---|
| 1315 | j = -1 |
---|
| 1316 | nzb_s_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 1317 | ENDIF |
---|
[1743] | 1318 | IF ( nyn == ny ) THEN |
---|
[1] | 1319 | j = ny + 1 |
---|
| 1320 | nzb_s_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 1321 | ENDIF |
---|
| 1322 | ENDDO |
---|
| 1323 | ! |
---|
| 1324 | !-- nzb_w_outer: |
---|
| 1325 | !-- identical to nzb_s_outer |
---|
| 1326 | nzb_w_outer = nzb_s_outer |
---|
| 1327 | |
---|
| 1328 | ! |
---|
| 1329 | !-- nzb_u_inner: |
---|
| 1330 | !-- extend nzb_local rightwards only |
---|
[1968] | 1331 | nzb_tmp = nzb_local |
---|
| 1332 | DO j = nys, nyn |
---|
| 1333 | DO i = nxl, nxr |
---|
[1] | 1334 | nzb_tmp(j,i) = MAX( nzb_local(j,i-1), nzb_local(j,i) ) |
---|
| 1335 | ENDDO |
---|
| 1336 | ENDDO |
---|
[1968] | 1337 | |
---|
| 1338 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1339 | |
---|
| 1340 | nzb_u_inner = nzb_tmp |
---|
[1] | 1341 | ! |
---|
| 1342 | !-- nzb_u_outer: |
---|
| 1343 | !-- extend current nzb_tmp (nzb_u_inner) north-/southwards |
---|
| 1344 | DO i = nxl, nxr |
---|
| 1345 | DO j = nys, nyn |
---|
[1353] | 1346 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i), & |
---|
[1] | 1347 | nzb_tmp(j+1,i) ) |
---|
| 1348 | ENDDO |
---|
| 1349 | ! |
---|
| 1350 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1351 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1352 | IF ( nys == 0 ) THEN |
---|
| 1353 | j = -1 |
---|
| 1354 | nzb_u_outer(j,i) = MAX( nzb_tmp(j+1,i), nzb_tmp(j,i) ) |
---|
| 1355 | ENDIF |
---|
[1743] | 1356 | IF ( nyn == ny ) THEN |
---|
[1] | 1357 | j = ny + 1 |
---|
| 1358 | nzb_u_outer(j,i) = MAX( nzb_tmp(j-1,i), nzb_tmp(j,i) ) |
---|
| 1359 | ENDIF |
---|
| 1360 | ENDDO |
---|
| 1361 | |
---|
| 1362 | ! |
---|
| 1363 | !-- nzb_v_inner: |
---|
| 1364 | !-- extend nzb_local northwards only |
---|
[1968] | 1365 | nzb_tmp = nzb_local |
---|
| 1366 | DO i = nxl, nxr |
---|
| 1367 | DO j = nys, nyn |
---|
[1] | 1368 | nzb_tmp(j,i) = MAX( nzb_local(j-1,i), nzb_local(j,i) ) |
---|
| 1369 | ENDDO |
---|
| 1370 | ENDDO |
---|
[1968] | 1371 | |
---|
| 1372 | CALL exchange_horiz_2d_int( nzb_tmp, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1373 | nzb_v_inner = nzb_tmp |
---|
[1] | 1374 | |
---|
| 1375 | ! |
---|
| 1376 | !-- nzb_v_outer: |
---|
| 1377 | !-- extend current nzb_tmp (nzb_v_inner) right-/leftwards |
---|
| 1378 | DO j = nys, nyn |
---|
| 1379 | DO i = nxl, nxr |
---|
[1353] | 1380 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i), & |
---|
[1] | 1381 | nzb_tmp(j,i+1) ) |
---|
| 1382 | ENDDO |
---|
| 1383 | ! |
---|
| 1384 | !-- non-cyclic boundary conditions (overwritten by call of |
---|
| 1385 | !-- exchange_horiz_2d_int below in case of cyclic boundary conditions) |
---|
| 1386 | IF ( nxl == 0 ) THEN |
---|
| 1387 | i = -1 |
---|
| 1388 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i+1), nzb_tmp(j,i) ) |
---|
| 1389 | ENDIF |
---|
| 1390 | IF ( nxr == nx ) THEN |
---|
| 1391 | i = nx + 1 |
---|
| 1392 | nzb_v_outer(j,i) = MAX( nzb_tmp(j,i-1), nzb_tmp(j,i) ) |
---|
| 1393 | ENDIF |
---|
| 1394 | ENDDO |
---|
[1804] | 1395 | |
---|
[1] | 1396 | ! |
---|
| 1397 | !-- Exchange of lateral boundary values (parallel computers) and cyclic |
---|
| 1398 | !-- boundary conditions, if applicable. |
---|
| 1399 | !-- Since nzb_s_inner and nzb_w_inner are derived directly from nzb_local |
---|
| 1400 | !-- they do not require exchange and are not included here. |
---|
[1968] | 1401 | CALL exchange_horiz_2d_int( nzb_u_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1402 | CALL exchange_horiz_2d_int( nzb_u_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1403 | CALL exchange_horiz_2d_int( nzb_v_inner, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1404 | CALL exchange_horiz_2d_int( nzb_v_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1405 | CALL exchange_horiz_2d_int( nzb_w_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
| 1406 | CALL exchange_horiz_2d_int( nzb_s_outer, nys, nyn, nxl, nxr, nbgp ) |
---|
[1] | 1407 | |
---|
[2232] | 1408 | ENDIF |
---|
[49] | 1409 | ! |
---|
[2232] | 1410 | !-- Deallocate temporary array, as it might be reused for different |
---|
| 1411 | !-- grid-levels further below. |
---|
| 1412 | DEALLOCATE( nzb_tmp ) |
---|
| 1413 | |
---|
| 1414 | ! |
---|
| 1415 | !-- Determine the maximum level of topography. It is used for |
---|
| 1416 | !-- steering the degradation of order of the applied advection scheme. |
---|
| 1417 | !-- In case of non-cyclic lateral boundaries, the order of the advection |
---|
| 1418 | !-- scheme has to be reduced up to nzt (required at the lateral boundaries). |
---|
| 1419 | k_top = 0 |
---|
| 1420 | DO i = nxl, nxr |
---|
| 1421 | DO j = nys, nyn |
---|
| 1422 | DO k = nzb, nzt + 1 |
---|
| 1423 | k_top = MAX( k_top, MERGE( k, 0, & |
---|
| 1424 | .NOT. BTEST( topo_3d(k,j,i), 0 ) ) ) |
---|
[1968] | 1425 | ENDDO |
---|
| 1426 | ENDDO |
---|
[2232] | 1427 | ENDDO |
---|
[1968] | 1428 | #if defined( __parallel ) |
---|
[2232] | 1429 | CALL MPI_ALLREDUCE( k_top + 1, nzb_max, 1, MPI_INTEGER, & !is +1 really necessary here? |
---|
| 1430 | MPI_MAX, comm2d, ierr ) |
---|
[1968] | 1431 | #else |
---|
[2232] | 1432 | nzb_max = k_top + 1 |
---|
[1968] | 1433 | #endif |
---|
[2232] | 1434 | IF ( inflow_l .OR. outflow_l .OR. inflow_r .OR. outflow_r .OR. & |
---|
| 1435 | inflow_n .OR. outflow_n .OR. inflow_s .OR. outflow_s .OR. & |
---|
| 1436 | nest_domain ) & |
---|
| 1437 | THEN |
---|
| 1438 | nzb_max = nzt |
---|
[1] | 1439 | ENDIF |
---|
[1968] | 1440 | ! |
---|
[2232] | 1441 | !-- Finally, if topography extents up to the model top, limit nzb_max to nzt. |
---|
| 1442 | nzb_max = MIN( nzb_max, nzt ) |
---|
[1] | 1443 | |
---|
| 1444 | ! |
---|
| 1445 | !-- Set the individual index arrays which define the k index from which on |
---|
| 1446 | !-- the usual finite difference form (which does not use surface fluxes) is |
---|
| 1447 | !-- applied |
---|
[1691] | 1448 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
[1] | 1449 | nzb_diff_s_inner = nzb_s_inner + 2 |
---|
| 1450 | nzb_diff_s_outer = nzb_s_outer + 2 |
---|
| 1451 | ELSE |
---|
| 1452 | nzb_diff_s_inner = nzb_s_inner + 1 |
---|
| 1453 | nzb_diff_s_outer = nzb_s_outer + 1 |
---|
| 1454 | ENDIF |
---|
| 1455 | |
---|
| 1456 | ! |
---|
[2232] | 1457 | !-- Set-up topography flags. First, set flags only for s, u, v and w-grid. |
---|
| 1458 | !-- Further special flags will be set in following loops. |
---|
| 1459 | wall_flags_0 = 0 |
---|
| 1460 | DO j = nys, nyn |
---|
| 1461 | DO i = nxl, nxr |
---|
| 1462 | DO k = nzb, nzt+1 |
---|
| 1463 | ! |
---|
| 1464 | !-- scalar grid |
---|
| 1465 | IF ( BTEST( topo_3d(k,j,i), 0 ) ) & |
---|
| 1466 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 0 ) |
---|
| 1467 | ! |
---|
| 1468 | !-- v grid |
---|
| 1469 | IF ( BTEST( topo_3d(k,j,i), 0 ) .AND. & |
---|
| 1470 | BTEST( topo_3d(k,j-1,i), 0 ) ) & |
---|
| 1471 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 2 ) |
---|
| 1472 | ! |
---|
| 1473 | !-- To do: set outer arrays on basis of topo_3d array, adjust for downward-facing walls |
---|
| 1474 | !-- s grid outer array |
---|
| 1475 | IF ( k >= nzb_s_outer(j,i) ) & |
---|
| 1476 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 24 ) |
---|
| 1477 | ! |
---|
| 1478 | !-- s grid outer array |
---|
| 1479 | IF ( k >= nzb_u_outer(j,i) ) & |
---|
| 1480 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 26 ) |
---|
| 1481 | ! |
---|
| 1482 | !-- s grid outer array |
---|
| 1483 | IF ( k >= nzb_v_outer(j,i) ) & |
---|
| 1484 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 27 ) |
---|
| 1485 | ! |
---|
| 1486 | !-- w grid outer array |
---|
| 1487 | IF ( k >= nzb_w_outer(j,i) ) & |
---|
| 1488 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 28 ) |
---|
| 1489 | ENDDO |
---|
[1] | 1490 | |
---|
[2232] | 1491 | DO k = nzb, nzt |
---|
[1] | 1492 | ! |
---|
[2232] | 1493 | !-- w grid |
---|
| 1494 | IF ( BTEST( topo_3d(k,j,i), 0 ) .AND. & |
---|
| 1495 | BTEST( topo_3d(k+1,j,i), 0 ) ) & |
---|
| 1496 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 3 ) |
---|
| 1497 | ENDDO |
---|
| 1498 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 3 ) |
---|
| 1499 | |
---|
| 1500 | ENDDO |
---|
| 1501 | ENDDO |
---|
[1] | 1502 | ! |
---|
[2232] | 1503 | !-- u grid. Note, reverse |
---|
| 1504 | !-- memory access is required for setting flag on u-grid |
---|
| 1505 | DO j = nys, nyn |
---|
| 1506 | DO i = nxl, nxr |
---|
| 1507 | DO k = nzb, nzt+1 |
---|
| 1508 | IF ( BTEST( topo_3d(k,j,i), 0 ) .AND. & |
---|
| 1509 | BTEST( topo_3d(k,j,i-1), 0 ) ) & |
---|
| 1510 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 1 ) |
---|
| 1511 | ENDDO |
---|
| 1512 | ENDDO |
---|
| 1513 | ENDDO |
---|
[1] | 1514 | ! |
---|
[2232] | 1515 | !-- Set further special flags |
---|
| 1516 | DO i = nxl, nxr |
---|
| 1517 | DO j = nys, nyn |
---|
| 1518 | DO k = nzb, nzt+1 |
---|
[1] | 1519 | ! |
---|
[2232] | 1520 | !-- scalar grid, former nzb_diff_s_inner. |
---|
| 1521 | !-- Note, use this flag also to mask topography in diffusion_u and |
---|
| 1522 | !-- diffusion_v along the vertical direction. In case of |
---|
| 1523 | !-- use_surface_fluxes, fluxes are calculated via MOST, else, simple |
---|
| 1524 | !-- gradient approach is applied. Please note, in case of u- and v- |
---|
| 1525 | !-- diffuison, a small error is made at edges (on the east side for u, |
---|
| 1526 | !-- at the north side for v), since topography on scalar grid point |
---|
| 1527 | !-- is used instead of topography on u/v-grid. As number of topography grid |
---|
| 1528 | !-- points on uv-grid is different than s-grid, different number of |
---|
| 1529 | !-- surface elements would be required. In order to avoid this, |
---|
| 1530 | !-- treat edges (u(k,j,i+1)) simply by a gradient approach, i.e. these |
---|
| 1531 | !-- points are not masked within diffusion_u. Tests had shown that the |
---|
| 1532 | !-- effect on the flow is negligible. |
---|
| 1533 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 1534 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 1535 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 1536 | ELSE |
---|
| 1537 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 8 ) |
---|
| 1538 | ENDIF |
---|
[1] | 1539 | |
---|
[2232] | 1540 | ENDDO |
---|
| 1541 | ! |
---|
| 1542 | !-- Special flag to control vertical diffusion at model top - former |
---|
| 1543 | !-- nzt_diff |
---|
| 1544 | wall_flags_0(:,j,i) = IBSET( wall_flags_0(:,j,i), 9 ) |
---|
| 1545 | IF ( use_top_fluxes ) & |
---|
| 1546 | wall_flags_0(nzt:nzt+1,j,i) = IBCLR( wall_flags_0(nzt:nzt+1,j,i), 9 ) |
---|
[1] | 1547 | |
---|
[2232] | 1548 | DO k = nzb+1, nzt |
---|
| 1549 | ! |
---|
| 1550 | !-- Special flag on u grid, former nzb_u_inner + 1, required |
---|
| 1551 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 1552 | !-- topography, as well as initialize u with zero one grid point outside |
---|
| 1553 | !-- of topography. |
---|
| 1554 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 1555 | BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 1556 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 1557 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 20 ) |
---|
| 1558 | ! |
---|
| 1559 | !-- Special flag on v grid, former nzb_v_inner + 1, required |
---|
| 1560 | !-- for disturb_field and initialization. Do not disturb directly at |
---|
| 1561 | !-- topography, as well as initialize v with zero one grid point outside |
---|
| 1562 | !-- of topography. |
---|
| 1563 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 1564 | BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 1565 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 1566 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 21 ) |
---|
| 1567 | ! |
---|
| 1568 | !-- Special flag on scalar grid, former nzb_s_inner+1. Used for |
---|
| 1569 | !-- lpm_sgs_tke |
---|
| 1570 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 1571 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 1572 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1573 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 25 ) |
---|
| 1574 | ! |
---|
| 1575 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 1576 | !-- in production_e |
---|
| 1577 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 1578 | IF ( BTEST( wall_flags_0(k,j,i), 24 ) .AND. & |
---|
| 1579 | BTEST( wall_flags_0(k-1,j,i), 24 ) .AND. & |
---|
| 1580 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1581 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
| 1582 | ELSE |
---|
| 1583 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 1584 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 29 ) |
---|
[1] | 1585 | ENDIF |
---|
[2232] | 1586 | ! |
---|
| 1587 | !-- Special flag on scalar grid, nzb_diff_s_outer - 1, required in |
---|
| 1588 | !-- in production_e |
---|
| 1589 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 1590 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 1591 | BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 1592 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1593 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 1594 | ELSE |
---|
| 1595 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 1596 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 30 ) |
---|
| 1597 | ENDIF |
---|
| 1598 | ENDDO |
---|
| 1599 | ! |
---|
| 1600 | !-- Flags indicating downward facing walls |
---|
| 1601 | DO k = nzb+1, nzt |
---|
| 1602 | ! |
---|
| 1603 | !-- Scalar grid |
---|
| 1604 | IF ( BTEST( wall_flags_0(k-1,j,i), 0 ) .AND. & |
---|
| 1605 | .NOT. BTEST( wall_flags_0(k,j,i), 0 ) ) & |
---|
| 1606 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 13 ) |
---|
| 1607 | ! |
---|
| 1608 | !-- Downward facing wall on u grid |
---|
| 1609 | IF ( BTEST( wall_flags_0(k-1,j,i), 1 ) .AND. & |
---|
| 1610 | .NOT. BTEST( wall_flags_0(k,j,i), 1 ) ) & |
---|
| 1611 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 15 ) |
---|
| 1612 | ! |
---|
| 1613 | !-- Downward facing wall on v grid |
---|
| 1614 | IF ( BTEST( wall_flags_0(k-1,j,i), 2 ) .AND. & |
---|
| 1615 | .NOT. BTEST( wall_flags_0(k,j,i), 2 ) ) & |
---|
| 1616 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 17 ) |
---|
| 1617 | ! |
---|
| 1618 | !-- Downward facing wall on w grid |
---|
| 1619 | IF ( BTEST( wall_flags_0(k-1,j,i), 3 ) .AND. & |
---|
| 1620 | .NOT. BTEST( wall_flags_0(k,j,i), 3 ) ) & |
---|
| 1621 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 19 ) |
---|
| 1622 | ENDDO |
---|
| 1623 | ! |
---|
| 1624 | !-- Flags indicating upward facing walls |
---|
| 1625 | DO k = nzb, nzt |
---|
| 1626 | ! |
---|
| 1627 | !-- Upward facing wall on scalar grid |
---|
| 1628 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 1629 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1630 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 12 ) |
---|
| 1631 | ! |
---|
| 1632 | !-- Upward facing wall on u grid |
---|
| 1633 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 1 ) .AND. & |
---|
| 1634 | BTEST( wall_flags_0(k+1,j,i), 1 ) ) & |
---|
| 1635 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 14 ) |
---|
[1] | 1636 | |
---|
[2232] | 1637 | ! |
---|
| 1638 | !-- Upward facing wall on v grid |
---|
| 1639 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 2 ) .AND. & |
---|
| 1640 | BTEST( wall_flags_0(k+1,j,i), 2 ) ) & |
---|
| 1641 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 16 ) |
---|
| 1642 | |
---|
| 1643 | ! |
---|
| 1644 | !-- Upward facing wall on w grid |
---|
| 1645 | IF ( .NOT. BTEST( wall_flags_0(k,j,i), 3 ) .AND. & |
---|
| 1646 | BTEST( wall_flags_0(k+1,j,i), 3 ) ) & |
---|
| 1647 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 18 ) |
---|
| 1648 | ! |
---|
| 1649 | !-- Special flag on scalar grid, former nzb_s_inner |
---|
| 1650 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .OR. & |
---|
| 1651 | BTEST( wall_flags_0(k,j,i), 12 ) .OR. & |
---|
| 1652 | BTEST( wall_flags_0(k,j,i), 13 ) ) & |
---|
| 1653 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 22 ) |
---|
| 1654 | ! |
---|
| 1655 | !-- Special flag on scalar grid, nzb_diff_s_inner - 1, required for |
---|
| 1656 | !-- flow_statistics |
---|
| 1657 | IF ( constant_flux_layer .OR. use_surface_fluxes ) THEN |
---|
| 1658 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) .AND. & |
---|
| 1659 | BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1660 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
| 1661 | ELSE |
---|
| 1662 | IF ( BTEST( wall_flags_0(k,j,i), 22 ) ) & |
---|
| 1663 | wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 23 ) |
---|
[1] | 1664 | ENDIF |
---|
| 1665 | |
---|
| 1666 | |
---|
[2232] | 1667 | ENDDO |
---|
| 1668 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 22 ) |
---|
| 1669 | wall_flags_0(nzt+1,j,i) = IBSET( wall_flags_0(nzt+1,j,i), 23 ) |
---|
| 1670 | ENDDO |
---|
| 1671 | ENDDO |
---|
| 1672 | ! |
---|
| 1673 | !-- Exchange ghost points for wall flags |
---|
| 1674 | CALL exchange_horiz_int( wall_flags_0, nbgp ) |
---|
| 1675 | ! |
---|
| 1676 | !-- Set boundary conditions also for flags. Can be interpreted as Neumann |
---|
| 1677 | !-- boundary conditions for topography. |
---|
| 1678 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
| 1679 | IF ( nys == 0 ) wall_flags_0(:,-1,:) = wall_flags_0(:,0,:) |
---|
| 1680 | IF ( nyn == ny ) wall_flags_0(:,ny+1,:) = wall_flags_0(:,ny,:) |
---|
| 1681 | ENDIF |
---|
| 1682 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
| 1683 | IF ( nxl == 0 ) wall_flags_0(:,:,-1) = wall_flags_0(:,:,0) |
---|
| 1684 | IF ( nxr == nx ) wall_flags_0(:,:,nx+1) = wall_flags_0(:,:,nx) |
---|
| 1685 | ENDIF |
---|
[1] | 1686 | |
---|
[2232] | 1687 | ! |
---|
| 1688 | !-- Initialize boundary conditions via surface type |
---|
| 1689 | CALL init_bc |
---|
| 1690 | ! |
---|
| 1691 | !-- Allocate and set topography height arrays required for data output |
---|
| 1692 | IF ( TRIM( topography ) /= 'flat' ) THEN |
---|
| 1693 | ! |
---|
| 1694 | !-- Allocate and set the arrays containing the topography height |
---|
[1] | 1695 | |
---|
[2232] | 1696 | IF ( nxr == nx .AND. nyn /= ny ) THEN |
---|
| 1697 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn), & |
---|
| 1698 | zw_w_inner(nxl:nxr+1,nys:nyn) ) |
---|
| 1699 | ELSEIF ( nxr /= nx .AND. nyn == ny ) THEN |
---|
| 1700 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn+1), & |
---|
| 1701 | zw_w_inner(nxl:nxr,nys:nyn+1) ) |
---|
| 1702 | ELSEIF ( nxr == nx .AND. nyn == ny ) THEN |
---|
| 1703 | ALLOCATE( zu_s_inner(nxl:nxr+1,nys:nyn+1), & |
---|
| 1704 | zw_w_inner(nxl:nxr+1,nys:nyn+1) ) |
---|
| 1705 | ELSE |
---|
| 1706 | ALLOCATE( zu_s_inner(nxl:nxr,nys:nyn), & |
---|
| 1707 | zw_w_inner(nxl:nxr,nys:nyn) ) |
---|
| 1708 | ENDIF |
---|
[1] | 1709 | |
---|
[2232] | 1710 | zu_s_inner = 0.0_wp |
---|
| 1711 | zw_w_inner = 0.0_wp |
---|
| 1712 | ! |
---|
| 1713 | !-- Determine local topography height on scalar and w-grid. Note, setting |
---|
| 1714 | !-- lateral boundary values is not necessary, realized via wall_flags_0 |
---|
| 1715 | !-- array. Further, please note that loop bounds are different from |
---|
| 1716 | !-- nxl to nxr and nys to nyn on south and right model boundary, hence, |
---|
| 1717 | !-- use intrinsic lbound and ubound functions to infer array bounds. |
---|
[2317] | 1718 | DO i = LBOUND(zu_s_inner, 1), UBOUND(zu_s_inner, 1) |
---|
| 1719 | DO j = LBOUND(zu_s_inner, 2), UBOUND(zu_s_inner, 2) |
---|
[2232] | 1720 | ! |
---|
| 1721 | !-- Topography height on scalar grid. Therefore, determine index of |
---|
[2317] | 1722 | !-- upward-facing surface element on scalar grid. |
---|
| 1723 | zu_s_inner(i,j) = zu( get_topography_top_index( j, i, 's' ) ) |
---|
| 1724 | |
---|
| 1725 | write(9,*) get_topography_top_index( j, i, 's' ), MAXLOC( & |
---|
| 1726 | MERGE( 1, 0, & |
---|
| 1727 | BTEST( wall_flags_0(:,j,i), 12 ) & |
---|
| 1728 | ), DIM = 1 & |
---|
| 1729 | ) - 1 |
---|
[2232] | 1730 | ! |
---|
| 1731 | !-- Topography height on w grid. Therefore, determine index of |
---|
[2317] | 1732 | !-- upward-facing surface element on w grid. |
---|
| 1733 | zw_w_inner(i,j) = zw( get_topography_top_index( j, i, 's' ) ) |
---|
[2232] | 1734 | ENDDO |
---|
| 1735 | ENDDO |
---|
[2317] | 1736 | flush(9) |
---|
[1] | 1737 | |
---|
[2232] | 1738 | ENDIF |
---|
[1] | 1739 | |
---|
| 1740 | ! |
---|
[1931] | 1741 | !-- Calculate wall flag arrays for the multigrid method. |
---|
| 1742 | !-- Please note, wall flags are only applied in the not cache-optimized |
---|
| 1743 | !-- version. |
---|
| 1744 | IF ( psolver == 'multigrid_noopt' ) THEN |
---|
[1968] | 1745 | |
---|
[114] | 1746 | ! |
---|
[1968] | 1747 | !-- Gridpoint increment of the current level. |
---|
[114] | 1748 | inc = 1 |
---|
| 1749 | DO l = maximum_grid_level, 1 , -1 |
---|
[1968] | 1750 | ! |
---|
| 1751 | !-- Set grid_level as it is required for exchange_horiz_2d_int |
---|
| 1752 | grid_level = l |
---|
[114] | 1753 | |
---|
| 1754 | nxl_l = nxl_mg(l) |
---|
| 1755 | nxr_l = nxr_mg(l) |
---|
| 1756 | nys_l = nys_mg(l) |
---|
| 1757 | nyn_l = nyn_mg(l) |
---|
| 1758 | nzt_l = nzt_mg(l) |
---|
| 1759 | ! |
---|
| 1760 | !-- Assign the flag level to be calculated |
---|
| 1761 | SELECT CASE ( l ) |
---|
| 1762 | CASE ( 1 ) |
---|
| 1763 | flags => wall_flags_1 |
---|
| 1764 | CASE ( 2 ) |
---|
| 1765 | flags => wall_flags_2 |
---|
| 1766 | CASE ( 3 ) |
---|
| 1767 | flags => wall_flags_3 |
---|
| 1768 | CASE ( 4 ) |
---|
| 1769 | flags => wall_flags_4 |
---|
| 1770 | CASE ( 5 ) |
---|
| 1771 | flags => wall_flags_5 |
---|
| 1772 | CASE ( 6 ) |
---|
| 1773 | flags => wall_flags_6 |
---|
| 1774 | CASE ( 7 ) |
---|
| 1775 | flags => wall_flags_7 |
---|
| 1776 | CASE ( 8 ) |
---|
| 1777 | flags => wall_flags_8 |
---|
| 1778 | CASE ( 9 ) |
---|
| 1779 | flags => wall_flags_9 |
---|
| 1780 | CASE ( 10 ) |
---|
| 1781 | flags => wall_flags_10 |
---|
| 1782 | END SELECT |
---|
| 1783 | |
---|
| 1784 | ! |
---|
| 1785 | !-- Depending on the grid level, set the respective bits in case of |
---|
| 1786 | !-- neighbouring walls |
---|
| 1787 | !-- Bit 0: wall to the bottom |
---|
| 1788 | !-- Bit 1: wall to the top (not realized in remaining PALM code so far) |
---|
| 1789 | !-- Bit 2: wall to the south |
---|
| 1790 | !-- Bit 3: wall to the north |
---|
| 1791 | !-- Bit 4: wall to the left |
---|
| 1792 | !-- Bit 5: wall to the right |
---|
[116] | 1793 | !-- Bit 6: inside building |
---|
[114] | 1794 | |
---|
| 1795 | flags = 0 |
---|
| 1796 | |
---|
[927] | 1797 | ! |
---|
| 1798 | !-- In case of masking method, flags are not set and multigrid method |
---|
| 1799 | !-- works like FFT-solver |
---|
[1931] | 1800 | IF ( .NOT. masking_method ) THEN |
---|
[927] | 1801 | |
---|
[1968] | 1802 | ! |
---|
| 1803 | !-- Allocate temporary array for topography heights on coarser grid |
---|
| 1804 | !-- level. Please note, 2 ghoist points are required, in order to |
---|
| 1805 | !-- calculate flags() on the interior ghost point. |
---|
| 1806 | ALLOCATE( nzb_tmp(nys_l-2:nyn_l+2,nxl_l-2:nxr_l+2) ) |
---|
| 1807 | nzb_tmp = 0 |
---|
| 1808 | |
---|
| 1809 | DO i = nxl_l, nxr_l |
---|
| 1810 | DO j = nys_l, nyn_l |
---|
| 1811 | nzb_tmp(j,i) = nzb_local(j*inc,i*inc) |
---|
| 1812 | ENDDO |
---|
| 1813 | ENDDO |
---|
| 1814 | ! |
---|
| 1815 | !-- Exchange ghost points on respective multigrid level. 2 ghost points |
---|
| 1816 | !-- are required, in order to calculate flags on |
---|
| 1817 | !-- nys_l-1 / nyn_l+1 / nxl_l-1 / nxr_l+1. The alternative would be to |
---|
| 1818 | !-- exchange 3D-INTEGER array flags on the respective multigrid level. |
---|
| 1819 | CALL exchange_horiz_2d_int( nzb_tmp, nys_l, nyn_l, nxl_l, nxr_l, 2 ) |
---|
| 1820 | ! |
---|
| 1821 | !-- Set non-cyclic boundary conditions on respective multigrid level |
---|
| 1822 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[2021] | 1823 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
---|
[1968] | 1824 | nzb_tmp(-2,:) = nzb_tmp(0,:) |
---|
| 1825 | nzb_tmp(-1,:) = nzb_tmp(0,:) |
---|
| 1826 | ENDIF |
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[2021] | 1827 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
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| 1828 | nzb_tmp(nyn_l+2,:) = nzb_tmp(nyn_l,:) |
---|
| 1829 | nzb_tmp(nyn_l+1,:) = nzb_tmp(nyn_l,:) |
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[1968] | 1830 | ENDIF |
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| 1831 | ENDIF |
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| 1832 | IF ( .NOT. bc_lr_cyc ) THEN |
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[2021] | 1833 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
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[1968] | 1834 | nzb_tmp(:,-2) = nzb_tmp(:,0) |
---|
| 1835 | nzb_tmp(:,-1) = nzb_tmp(:,0) |
---|
| 1836 | ENDIF |
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[2021] | 1837 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
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| 1838 | nzb_tmp(:,nxr_l+1) = nzb_tmp(:,nxr_l) |
---|
| 1839 | nzb_tmp(:,nxr_l+2) = nzb_tmp(:,nxr_l) |
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[1968] | 1840 | ENDIF |
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| 1841 | ENDIF |
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| 1842 | |
---|
[927] | 1843 | DO i = nxl_l-1, nxr_l+1 |
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| 1844 | DO j = nys_l-1, nyn_l+1 |
---|
[1968] | 1845 | DO k = nzb, nzt_l+1 |
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[114] | 1846 | ! |
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[927] | 1847 | !-- Inside/outside building (inside building does not need |
---|
| 1848 | !-- further tests for walls) |
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[1968] | 1849 | IF ( k*inc <= nzb_tmp(j,i) ) THEN |
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[114] | 1850 | |
---|
[927] | 1851 | flags(k,j,i) = IBSET( flags(k,j,i), 6 ) |
---|
[114] | 1852 | |
---|
[927] | 1853 | ELSE |
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[114] | 1854 | ! |
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[927] | 1855 | !-- Bottom wall |
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[1968] | 1856 | IF ( (k-1)*inc <= nzb_tmp(j,i) ) THEN |
---|
[927] | 1857 | flags(k,j,i) = IBSET( flags(k,j,i), 0 ) |
---|
| 1858 | ENDIF |
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[114] | 1859 | ! |
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[927] | 1860 | !-- South wall |
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[1968] | 1861 | IF ( k*inc <= nzb_tmp(j-1,i) ) THEN |
---|
[927] | 1862 | flags(k,j,i) = IBSET( flags(k,j,i), 2 ) |
---|
| 1863 | ENDIF |
---|
[114] | 1864 | ! |
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[927] | 1865 | !-- North wall |
---|
[1968] | 1866 | IF ( k*inc <= nzb_tmp(j+1,i) ) THEN |
---|
[927] | 1867 | flags(k,j,i) = IBSET( flags(k,j,i), 3 ) |
---|
| 1868 | ENDIF |
---|
[114] | 1869 | ! |
---|
[927] | 1870 | !-- Left wall |
---|
[1968] | 1871 | IF ( k*inc <= nzb_tmp(j,i-1) ) THEN |
---|
[927] | 1872 | flags(k,j,i) = IBSET( flags(k,j,i), 4 ) |
---|
| 1873 | ENDIF |
---|
[114] | 1874 | ! |
---|
[927] | 1875 | !-- Right wall |
---|
[1968] | 1876 | IF ( k*inc <= nzb_tmp(j,i+1) ) THEN |
---|
[927] | 1877 | flags(k,j,i) = IBSET( flags(k,j,i), 5 ) |
---|
| 1878 | ENDIF |
---|
| 1879 | |
---|
[114] | 1880 | ENDIF |
---|
| 1881 | |
---|
[927] | 1882 | ENDDO |
---|
[114] | 1883 | ENDDO |
---|
| 1884 | ENDDO |
---|
| 1885 | |
---|
[1968] | 1886 | DEALLOCATE( nzb_tmp ) |
---|
| 1887 | |
---|
[927] | 1888 | ENDIF |
---|
| 1889 | |
---|
[114] | 1890 | inc = inc * 2 |
---|
| 1891 | |
---|
| 1892 | ENDDO |
---|
[1968] | 1893 | ! |
---|
| 1894 | !-- Reset grid_level to "normal" grid |
---|
| 1895 | grid_level = 0 |
---|
| 1896 | |
---|
[114] | 1897 | ENDIF |
---|
[861] | 1898 | ! |
---|
[1942] | 1899 | !-- Allocate flags needed for masking walls. Even though these flags are only |
---|
[2021] | 1900 | !-- required in the ws-scheme, the arrays need to be allocated here as they are |
---|
[1942] | 1901 | !-- used in OpenACC directives. |
---|
[2232] | 1902 | ALLOCATE( advc_flags_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), & |
---|
| 1903 | advc_flags_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
| 1904 | advc_flags_1 = 0 |
---|
| 1905 | advc_flags_2 = 0 |
---|
[114] | 1906 | ! |
---|
[2021] | 1907 | !-- Init flags for ws-scheme to degrade order of the numerics near walls, i.e. |
---|
| 1908 | !-- to decrease the numerical stencil appropriately. |
---|
[2200] | 1909 | IF ( momentum_advec == 'ws-scheme' .OR. scalar_advec == 'ws-scheme' & |
---|
| 1910 | ) THEN |
---|
[1942] | 1911 | CALL ws_init_flags |
---|
[861] | 1912 | ENDIF |
---|
| 1913 | |
---|
| 1914 | ! |
---|
[1] | 1915 | !-- In case of topography: limit near-wall mixing length l_wall further: |
---|
| 1916 | !-- Go through all points of the subdomain one by one and look for the closest |
---|
| 1917 | !-- surface |
---|
[2232] | 1918 | DO i = nxl, nxr |
---|
| 1919 | DO j = nys, nyn |
---|
| 1920 | DO k = nzb+1, nzt |
---|
[1] | 1921 | ! |
---|
[2232] | 1922 | !-- Check if current gridpoint belongs to the atmosphere |
---|
| 1923 | IF ( BTEST( wall_flags_0(k,j,i), 0 ) ) THEN |
---|
[1] | 1924 | ! |
---|
[2232] | 1925 | !-- Check for neighbouring grid-points. |
---|
| 1926 | !-- Vertical distance, down |
---|
| 1927 | IF ( .NOT. BTEST( wall_flags_0(k-1,j,i), 0 ) ) & |
---|
| 1928 | l_wall(k,j,i) = MIN( l_grid(k), zu(k) - zw(k-1) ) |
---|
[1] | 1929 | ! |
---|
[2232] | 1930 | !-- Vertical distance, up |
---|
| 1931 | IF ( .NOT. BTEST( wall_flags_0(k+1,j,i), 0 ) ) & |
---|
| 1932 | l_wall(k,j,i) = MIN( l_grid(k), zw(k) - zu(k) ) |
---|
[1] | 1933 | ! |
---|
[2232] | 1934 | !-- y-distance |
---|
| 1935 | IF ( .NOT. BTEST( wall_flags_0(k,j-1,i), 0 ) .OR. & |
---|
| 1936 | .NOT. BTEST( wall_flags_0(k,j+1,i), 0 ) ) & |
---|
| 1937 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), 0.5_wp * dy ) |
---|
[1] | 1938 | ! |
---|
[2232] | 1939 | !-- x-distance |
---|
| 1940 | IF ( .NOT. BTEST( wall_flags_0(k,j,i-1), 0 ) .OR. & |
---|
| 1941 | .NOT. BTEST( wall_flags_0(k,j,i+1), 0 ) ) & |
---|
| 1942 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), 0.5_wp * dx ) |
---|
[1] | 1943 | ! |
---|
[2232] | 1944 | !-- yz-distance (vertical edges, down) |
---|
| 1945 | IF ( .NOT. BTEST( wall_flags_0(k-1,j-1,i), 0 ) .OR. & |
---|
| 1946 | .NOT. BTEST( wall_flags_0(k-1,j+1,i), 0 ) ) & |
---|
| 1947 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1948 | SQRT( 0.25_wp * dy**2 + & |
---|
| 1949 | ( zu(k) - zw(k-1) )**2 ) ) |
---|
[1] | 1950 | ! |
---|
[2232] | 1951 | !-- yz-distance (vertical edges, up) |
---|
| 1952 | IF ( .NOT. BTEST( wall_flags_0(k+1,j-1,i), 0 ) .OR. & |
---|
| 1953 | .NOT. BTEST( wall_flags_0(k+1,j+1,i), 0 ) ) & |
---|
| 1954 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1955 | SQRT( 0.25_wp * dy**2 + & |
---|
| 1956 | ( zw(k) - zu(k) )**2 ) ) |
---|
[1] | 1957 | ! |
---|
[2232] | 1958 | !-- xz-distance (vertical edges, down) |
---|
| 1959 | IF ( .NOT. BTEST( wall_flags_0(k-1,j,i-1), 0 ) .OR. & |
---|
| 1960 | .NOT. BTEST( wall_flags_0(k-1,j,i+1), 0 ) ) & |
---|
| 1961 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1962 | SQRT( 0.25_wp * dx**2 + & |
---|
| 1963 | ( zu(k) - zw(k-1) )**2 ) ) |
---|
[1] | 1964 | ! |
---|
[2232] | 1965 | !-- xz-distance (vertical edges, up) |
---|
| 1966 | IF ( .NOT. BTEST( wall_flags_0(k+1,j,i-1), 0 ) .OR. & |
---|
| 1967 | .NOT. BTEST( wall_flags_0(k+1,j,i+1), 0 ) ) & |
---|
| 1968 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1969 | SQRT( 0.25_wp * dx**2 + & |
---|
| 1970 | ( zw(k) - zu(k) )**2 ) ) |
---|
[1] | 1971 | ! |
---|
[2232] | 1972 | !-- xy-distance (horizontal edges) |
---|
| 1973 | IF ( .NOT. BTEST( wall_flags_0(k,j-1,i-1), 0 ) .OR. & |
---|
| 1974 | .NOT. BTEST( wall_flags_0(k,j+1,i-1), 0 ) .OR. & |
---|
| 1975 | .NOT. BTEST( wall_flags_0(k,j-1,i+1), 0 ) .OR. & |
---|
| 1976 | .NOT. BTEST( wall_flags_0(k,j+1,i+1), 0 ) ) & |
---|
| 1977 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1978 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) ) ) |
---|
[1] | 1979 | ! |
---|
[2232] | 1980 | !-- xyz distance (vertical and horizontal edges, down) |
---|
| 1981 | IF ( .NOT. BTEST( wall_flags_0(k-1,j-1,i-1), 0 ) .OR. & |
---|
| 1982 | .NOT. BTEST( wall_flags_0(k-1,j+1,i-1), 0 ) .OR. & |
---|
| 1983 | .NOT. BTEST( wall_flags_0(k-1,j-1,i+1), 0 ) .OR. & |
---|
| 1984 | .NOT. BTEST( wall_flags_0(k-1,j+1,i+1), 0 ) ) & |
---|
| 1985 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1986 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) & |
---|
| 1987 | + ( zu(k) - zw(k-1) )**2 ) ) |
---|
[1] | 1988 | ! |
---|
[2232] | 1989 | !-- xyz distance (vertical and horizontal edges, up) |
---|
| 1990 | IF ( .NOT. BTEST( wall_flags_0(k+1,j-1,i-1), 0 ) .OR. & |
---|
| 1991 | .NOT. BTEST( wall_flags_0(k+1,j+1,i-1), 0 ) .OR. & |
---|
| 1992 | .NOT. BTEST( wall_flags_0(k+1,j-1,i+1), 0 ) .OR. & |
---|
| 1993 | .NOT. BTEST( wall_flags_0(k+1,j+1,i+1), 0 ) ) & |
---|
| 1994 | l_wall(k,j,i) = MIN( l_wall(k,j,i), l_grid(k), & |
---|
| 1995 | SQRT( 0.25_wp * ( dx**2 + dy**2 ) & |
---|
| 1996 | + ( zw(k) - zu(k) )**2 ) ) |
---|
| 1997 | |
---|
[1] | 1998 | ENDIF |
---|
| 1999 | ENDDO |
---|
| 2000 | ENDDO |
---|
[2232] | 2001 | ENDDO |
---|
[1] | 2002 | ! |
---|
[709] | 2003 | !-- Set lateral boundary conditions for l_wall |
---|
[2232] | 2004 | CALL exchange_horiz( l_wall, nbgp ) |
---|
[667] | 2005 | |
---|
[1] | 2006 | |
---|
| 2007 | END SUBROUTINE init_grid |
---|