[1850] | 1 | !> @file surface_layer_fluxes_mod.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[2696] | 3 | ! This file is part of the PALM model system. |
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[1691] | 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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[1691] | 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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[1691] | 18 | ! |
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[2000] | 19 | !------------------------------------------------------------------------------! |
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[2696] | 20 | ! |
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[1691] | 21 | ! Current revisions: |
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[1747] | 22 | ! ------------------ |
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[1758] | 23 | ! |
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[2233] | 24 | ! |
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[1692] | 25 | ! Former revisions: |
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| 26 | ! ----------------- |
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| 27 | ! $Id: surface_layer_fluxes_mod.f90 2696 2017-12-14 17:12:51Z kanani $ |
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[2696] | 28 | ! - Implementation of chemistry module (FK) |
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| 29 | ! - Added calculation of pt1 and qv1 for all surface types. Added calculation of |
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| 30 | ! pt_surface for default-type surfaces (BM) |
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| 31 | ! - Add flag to disable computation of qsws in case of urban surface (MS) |
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| 32 | ! |
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| 33 | ! 2547 2017-10-16 12:41:56Z schwenkel |
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[2547] | 34 | ! extended by cloud_droplets option |
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| 35 | ! |
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| 36 | ! 2321 2017-07-24 15:57:07Z schwenkel |
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[2321] | 37 | ! Bugfix: Correct index in lookup table for Obukhov length |
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| 38 | ! |
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| 39 | ! 2299 2017-06-29 10:14:38Z suehring |
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[2299] | 40 | ! Adjusted for allow separate spinups of LSM and atmosphere code |
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| 41 | ! |
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| 42 | ! 2292 2017-06-20 09:51:42Z schwenkel |
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[2292] | 43 | ! Implementation of new microphysic scheme: cloud_scheme = 'morrison' |
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| 44 | ! includes two more prognostic equations for cloud drop concentration (nc) |
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| 45 | ! and cloud water content (qc). |
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| 46 | ! |
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| 47 | ! 2281 2017-06-13 11:34:50Z suehring |
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[2281] | 48 | ! Clean-up unnecessary index access to surface type |
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| 49 | ! |
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| 50 | ! 2233 2017-05-30 18:08:54Z suehring |
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[1692] | 51 | ! |
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[2233] | 52 | ! 2232 2017-05-30 17:47:52Z suehring |
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| 53 | ! Adjustments to new surface concept |
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| 54 | ! OpenMP bugfix |
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| 55 | ! |
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[2119] | 56 | ! 2118 2017-01-17 16:38:49Z raasch |
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| 57 | ! OpenACC directives and related code removed |
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| 58 | ! |
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[2092] | 59 | ! 2091 2016-12-21 16:38:18Z suehring |
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| 60 | ! Bugfix in calculation of vsws ( incorrect linear interpolation of us ) |
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| 61 | ! |
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[2077] | 62 | ! 2076 2016-12-02 13:54:20Z raasch |
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| 63 | ! further openmp bugfix for lookup method |
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| 64 | ! |
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[2074] | 65 | ! 2073 2016-11-30 14:34:05Z raasch |
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| 66 | ! openmp bugfix for lookup method |
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| 67 | ! |
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[2038] | 68 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 69 | ! Anelastic approximation implemented |
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| 70 | ! |
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[2012] | 71 | ! 2011 2016-09-19 17:29:57Z kanani |
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| 72 | ! Flag urban_surface is now defined in module control_parameters. |
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| 73 | ! |
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[2008] | 74 | ! 2007 2016-08-24 15:47:17Z kanani |
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| 75 | ! Account for urban surface model in computation of vertical kinematic heatflux |
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| 76 | ! |
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[2001] | 77 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 78 | ! Forced header and separation lines into 80 columns |
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| 79 | ! |
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[1993] | 80 | ! 1992 2016-08-12 15:14:59Z suehring |
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| 81 | ! Minor bug, declaration of look-up index as INTEGER |
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| 82 | ! |
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[1961] | 83 | ! 1960 2016-07-12 16:34:24Z suehring |
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| 84 | ! Treat humidity and passive scalar separately |
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| 85 | ! |
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[1930] | 86 | ! 1929 2016-06-09 16:25:25Z suehring |
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| 87 | ! Bugfix: avoid segmentation fault in case one grid point is horizontally |
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| 88 | ! completely surrounded by topography |
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| 89 | ! |
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[1921] | 90 | ! 1920 2016-05-30 10:50:15Z suehring |
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| 91 | ! Avoid segmentation fault (see change in 1915) by different initialization of |
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| 92 | ! us instead of adding a very small number in the denominator |
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| 93 | ! |
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[1916] | 94 | ! 1915 2016-05-27 11:05:02Z suehring |
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| 95 | ! Bugfix: avoid segmentation fault in case of most_method = 'circular' at first |
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| 96 | ! timestep |
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| 97 | ! |
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[1851] | 98 | ! 1850 2016-04-08 13:29:27Z maronga |
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| 99 | ! Module renamed |
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| 100 | ! |
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| 101 | ! |
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[1823] | 102 | ! 1822 2016-04-07 07:49:42Z hoffmann |
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| 103 | ! icloud_scheme replaced by microphysics_* |
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| 104 | ! |
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[1789] | 105 | ! 1788 2016-03-10 11:01:04Z maronga |
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| 106 | ! Added parameter z0q which replaces z0h in the similarity functions for |
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| 107 | ! humidity. |
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| 108 | ! Syntax layout improved. |
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| 109 | ! |
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[1758] | 110 | ! 1757 2016-02-22 15:49:32Z maronga |
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| 111 | ! Minor fixes. |
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| 112 | ! |
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[1750] | 113 | ! 1749 2016-02-09 12:19:56Z raasch |
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| 114 | ! further OpenACC adjustments |
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| 115 | ! |
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[1748] | 116 | ! 1747 2016-02-08 12:25:53Z raasch |
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| 117 | ! adjustments for OpenACC usage |
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| 118 | ! |
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[1710] | 119 | ! 1709 2015-11-04 14:47:01Z maronga |
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| 120 | ! Bugfix: division by zero could occur when calculating rib at low wind speeds |
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| 121 | ! Bugfix: calculation of uv_total for neutral = .T., initial value for ol for |
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| 122 | ! neutral = .T. |
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| 123 | ! |
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[1706] | 124 | ! 1705 2015-11-02 14:28:56Z maronga |
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| 125 | ! Typo removed |
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| 126 | ! |
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[1698] | 127 | ! 1697 2015-10-28 17:14:10Z raasch |
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| 128 | ! FORTRAN and OpenMP errors removed |
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| 129 | ! |
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[1697] | 130 | ! 1696 2015-10-27 10:03:34Z maronga |
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[1691] | 131 | ! Modularized and completely re-written version of prandtl_fluxes.f90. In the |
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| 132 | ! course of the re-writing two additional methods have been implemented. See |
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| 133 | ! updated description. |
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| 134 | ! |
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| 135 | ! 1551 2015-03-03 14:18:16Z maronga |
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| 136 | ! Removed land surface model part. The surface fluxes are now always calculated |
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| 137 | ! within prandtl_fluxes, based on the given surface temperature/humidity (which |
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| 138 | ! is either provided by the land surface model, by large scale forcing data, or |
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| 139 | ! directly prescribed by the user. |
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| 140 | ! |
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| 141 | ! 1496 2014-12-02 17:25:50Z maronga |
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| 142 | ! Adapted for land surface model |
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| 143 | ! |
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| 144 | ! 1494 2014-11-21 17:14:03Z maronga |
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| 145 | ! Bugfixes: qs is now calculated before calculation of Rif. calculation of |
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| 146 | ! buoyancy flux in Rif corrected (added missing humidity term), allow use of |
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| 147 | ! topography for coupled runs (not tested) |
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| 148 | ! |
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| 149 | ! 1361 2014-04-16 15:17:48Z hoffmann |
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| 150 | ! Bugfix: calculation of turbulent fluxes of rain water content (qrsws) and rain |
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| 151 | ! drop concentration (nrsws) added |
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| 152 | ! |
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| 153 | ! 1340 2014-03-25 19:45:13Z kanani |
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| 154 | ! REAL constants defined as wp-kind |
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| 155 | ! |
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| 156 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 157 | ! ONLY-attribute added to USE-statements, |
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| 158 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 159 | ! kinds are defined in new module kinds, |
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| 160 | ! old module precision_kind is removed, |
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| 161 | ! revision history before 2012 removed, |
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| 162 | ! comment fields (!:) to be used for variable explanations added to |
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| 163 | ! all variable declaration statements |
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| 164 | ! |
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| 165 | ! 1276 2014-01-15 13:40:41Z heinze |
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| 166 | ! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars |
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| 167 | ! |
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| 168 | ! 1257 2013-11-08 15:18:40Z raasch |
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| 169 | ! openACC "kernels do" replaced by "kernels loop", "loop independent" added |
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| 170 | ! |
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| 171 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 172 | ! code put under GPL (PALM 3.9) |
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| 173 | ! |
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| 174 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 175 | ! OpenACC statements added |
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| 176 | ! |
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| 177 | ! 978 2012-08-09 08:28:32Z fricke |
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| 178 | ! roughness length for scalar quantities z0h added |
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| 179 | ! |
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| 180 | ! Revision 1.1 1998/01/23 10:06:06 raasch |
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| 181 | ! Initial revision |
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| 182 | ! |
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| 183 | ! |
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| 184 | ! Description: |
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| 185 | ! ------------ |
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| 186 | !> Diagnostic computation of vertical fluxes in the constant flux layer from the |
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| 187 | !> values of the variables at grid point k=1. Three different methods are |
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| 188 | !> available: |
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| 189 | !> 1) the "old" version (most_method = 'circular') which is fast, but inaccurate |
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| 190 | !> 2) a Newton iteration method (most_method = 'newton'), which is accurate, but |
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| 191 | !> slower |
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| 192 | !> 3) a method using a lookup table which is fast and accurate. Note, however, |
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| 193 | !> that this method cannot be used in case of roughness heterogeneity |
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| 194 | !> |
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| 195 | !> @todo (re)move large_scale_forcing actions |
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[2118] | 196 | !> @todo check/optimize OpenMP directives |
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[2696] | 197 | !> @todo simplify if conditions (which flux need to be computed in which case) |
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[1691] | 198 | !------------------------------------------------------------------------------! |
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| 199 | MODULE surface_layer_fluxes_mod |
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| 200 | |
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| 201 | USE arrays_3d, & |
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[2292] | 202 | ONLY: e, kh, nc, nr, pt, q, ql, qc, qr, s, u, v, vpt, w, zu, zw, & |
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| 203 | drho_air_zw, rho_air_zw |
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[1691] | 204 | |
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[2696] | 205 | #if defined( __chem ) |
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| 206 | USE chem_modules, & |
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| 207 | ONLY: constant_csflux, nvar |
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| 208 | #endif |
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| 209 | |
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[1691] | 210 | USE cloud_parameters, & |
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| 211 | ONLY: l_d_cp, pt_d_t |
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| 212 | |
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| 213 | USE constants, & |
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| 214 | ONLY: pi |
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| 215 | |
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| 216 | USE cpulog |
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| 217 | |
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| 218 | USE control_parameters, & |
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[2696] | 219 | ONLY: air_chemistry, cloud_droplets, cloud_physics, & |
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| 220 | constant_heatflux, constant_scalarflux, & |
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| 221 | constant_waterflux, coupling_mode, g, humidity, ibc_e_b, & |
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| 222 | ibc_pt_b, initializing_actions, kappa, & |
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[2232] | 223 | intermediate_timestep_count, intermediate_timestep_count_max, & |
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| 224 | land_surface, large_scale_forcing, lsf_surf, & |
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[2292] | 225 | message_string, microphysics_morrison, microphysics_seifert, & |
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| 226 | most_method, neutral, passive_scalar, pt_surface, q_surface, & |
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| 227 | run_coupled, surface_pressure, simulated_time, terminate_run, & |
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[2299] | 228 | time_since_reference_point, urban_surface, zeta_max, zeta_min |
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[1691] | 229 | |
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[2232] | 230 | USE grid_variables, & |
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| 231 | ONLY: dx, dy |
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| 232 | |
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[1691] | 233 | USE indices, & |
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[2232] | 234 | ONLY: nxl, nxr, nys, nyn, nzb |
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[1691] | 235 | |
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| 236 | USE kinds |
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| 237 | |
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| 238 | USE pegrid |
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| 239 | |
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| 240 | USE land_surface_model_mod, & |
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[2232] | 241 | ONLY: aero_resist_kray, skip_time_do_lsm |
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[2011] | 242 | |
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[2232] | 243 | USE surface_mod, & |
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| 244 | ONLY : surf_def_h, surf_def_v, surf_lsm_h, surf_lsm_v, surf_type, & |
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| 245 | surf_usm_h, surf_usm_v |
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[2007] | 246 | |
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[1691] | 247 | |
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| 248 | IMPLICIT NONE |
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| 249 | |
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[1992] | 250 | INTEGER(iwp) :: i !< loop index x direction |
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| 251 | INTEGER(iwp) :: j !< loop index y direction |
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| 252 | INTEGER(iwp) :: k !< loop index z direction |
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[2232] | 253 | INTEGER(iwp) :: l !< loop index for surf type |
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| 254 | INTEGER(iwp) :: li_bnd = 7500 !< Lookup table index of the last time step |
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[1691] | 255 | |
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[2232] | 256 | INTEGER(iwp), PARAMETER :: num_steps = 15000 !< number of steps in the lookup table |
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[1691] | 257 | |
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[2232] | 258 | LOGICAL :: coupled_run !< Flag for coupled atmosphere-ocean runs |
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| 259 | LOGICAL :: downward = .FALSE.!< Flag indicating downward-facing horizontal surface |
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| 260 | LOGICAL :: mom_uv = .FALSE. !< Flag indicating calculation of usvs and vsus at vertical surfaces |
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| 261 | LOGICAL :: mom_w = .FALSE. !< Flag indicating calculation of wsus and wsvs at vertical surfaces |
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| 262 | LOGICAL :: mom_tke = .FALSE. !< Flag indicating calculation of momentum fluxes at vertical surfaces used for TKE production |
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| 263 | LOGICAL :: surf_vertical !< Flag indicating vertical surfaces |
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[1691] | 264 | |
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| 265 | REAL(wp), DIMENSION(0:num_steps-1) :: rib_tab, & !< Lookup table bulk Richardson number |
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| 266 | ol_tab !< Lookup table values of L |
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| 267 | |
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| 268 | REAL(wp) :: e_s, & !< Saturation water vapor pressure |
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| 269 | ol_max = 1.0E6_wp, & !< Maximum Obukhov length |
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| 270 | rib_max, & !< Maximum Richardson number in lookup table |
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| 271 | rib_min, & !< Minimum Richardson number in lookup table |
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| 272 | z_mo !< Height of the constant flux layer where MOST is assumed |
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| 273 | |
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[2232] | 274 | TYPE(surf_type), POINTER :: surf !< surf-type array, used to generalize subroutines |
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[1691] | 275 | |
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[2232] | 276 | |
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[1691] | 277 | SAVE |
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| 278 | |
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| 279 | PRIVATE |
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| 280 | |
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[2232] | 281 | PUBLIC init_surface_layer_fluxes, surface_layer_fluxes |
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[1691] | 282 | |
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| 283 | INTERFACE init_surface_layer_fluxes |
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| 284 | MODULE PROCEDURE init_surface_layer_fluxes |
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| 285 | END INTERFACE init_surface_layer_fluxes |
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| 286 | |
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| 287 | INTERFACE surface_layer_fluxes |
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| 288 | MODULE PROCEDURE surface_layer_fluxes |
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| 289 | END INTERFACE surface_layer_fluxes |
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| 290 | |
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| 291 | |
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| 292 | CONTAINS |
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| 293 | |
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| 294 | |
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| 295 | !------------------------------------------------------------------------------! |
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| 296 | ! Description: |
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| 297 | ! ------------ |
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| 298 | !> Main routine to compute the surface fluxes |
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| 299 | !------------------------------------------------------------------------------! |
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| 300 | SUBROUTINE surface_layer_fluxes |
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| 301 | |
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| 302 | IMPLICIT NONE |
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| 303 | |
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[2232] | 304 | surf_vertical = .FALSE. |
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| 305 | downward = .FALSE. |
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[1691] | 306 | ! |
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[2696] | 307 | !-- Derive potential temperature and specific humidity at first grid level |
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| 308 | !-- from the fields pt and q |
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[2232] | 309 | ! |
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[2696] | 310 | !-- First call for horizontal default-type surfaces (l=0 - upward facing, |
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| 311 | !-- l=1 - downward facing) |
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| 312 | DO l = 0, 1 |
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| 313 | IF ( surf_def_h(l)%ns >= 1 ) THEN |
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| 314 | surf => surf_def_h(l) |
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| 315 | CALL calc_pt_q |
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| 316 | IF ( .NOT. neutral ) CALL calc_pt_surface |
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| 317 | ENDIF |
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| 318 | ENDDO |
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[2232] | 319 | ! |
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[2696] | 320 | !-- Call for natural-type horizontal surfaces |
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| 321 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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| 322 | surf => surf_lsm_h |
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| 323 | CALL calc_pt_q |
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| 324 | ENDIF |
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| 325 | |
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| 326 | ! |
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| 327 | !-- Call for urban-type horizontal surfaces |
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| 328 | IF ( surf_usm_h%ns >= 1 ) THEN |
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| 329 | surf => surf_usm_h |
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| 330 | CALL calc_pt_q |
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| 331 | ENDIF |
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| 332 | |
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| 333 | ! |
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| 334 | !-- Call for natural-type vertical surfaces |
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| 335 | DO l = 0, 3 |
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| 336 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
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| 337 | surf => surf_lsm_v(l) |
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[2232] | 338 | CALL calc_pt_q |
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| 339 | ENDIF |
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[2696] | 340 | |
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[2232] | 341 | ! |
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[2696] | 342 | !-- Call for urban-type vertical surfaces |
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| 343 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
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| 344 | surf => surf_usm_v(l) |
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[2232] | 345 | CALL calc_pt_q |
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| 346 | ENDIF |
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[2696] | 347 | ENDDO |
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[1691] | 348 | |
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| 349 | ! |
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| 350 | !-- First, calculate the new Obukhov length, then new friction velocity, |
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| 351 | !-- followed by the new scaling parameters (th*, q*, etc.), and the new |
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| 352 | !-- surface fluxes if required. The old routine ("circular") requires a |
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| 353 | !-- different order of calls as the scaling parameters from the previous time |
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| 354 | !-- steps are used to calculate the Obukhov length |
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| 355 | |
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| 356 | ! |
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| 357 | !-- Depending on setting of most_method use the "old" routine |
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[2232] | 358 | !-- Note, each routine is called for different surface types. |
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| 359 | !-- First call for default-type horizontal surfaces, for natural- and |
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| 360 | !-- urban-type surfaces. Note, at this place only upward-facing horizontal |
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| 361 | !-- surfaces are treted. |
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[1691] | 362 | IF ( most_method == 'circular' ) THEN |
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[2232] | 363 | ! |
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| 364 | !-- Default-type upward-facing horizontal surfaces |
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| 365 | IF ( surf_def_h(0)%ns >= 1 ) THEN |
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| 366 | surf => surf_def_h(0) |
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| 367 | CALL calc_scaling_parameters |
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| 368 | CALL calc_uvw_abs |
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| 369 | IF ( .NOT. neutral ) CALL calc_ol |
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| 370 | CALL calc_us |
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| 371 | CALL calc_surface_fluxes |
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[1691] | 372 | ENDIF |
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| 373 | ! |
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[2232] | 374 | !-- Natural-type horizontal surfaces |
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| 375 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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| 376 | surf => surf_lsm_h |
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| 377 | CALL calc_scaling_parameters |
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| 378 | CALL calc_uvw_abs |
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| 379 | IF ( .NOT. neutral ) CALL calc_ol |
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| 380 | CALL calc_us |
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| 381 | CALL calc_surface_fluxes |
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| 382 | ENDIF |
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| 383 | ! |
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| 384 | !-- Urban-type horizontal surfaces |
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| 385 | IF ( surf_usm_h%ns >= 1 ) THEN |
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| 386 | surf => surf_usm_h |
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| 387 | CALL calc_scaling_parameters |
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| 388 | CALL calc_uvw_abs |
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| 389 | IF ( .NOT. neutral ) CALL calc_ol |
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| 390 | CALL calc_us |
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| 391 | CALL calc_surface_fluxes |
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| 392 | ENDIF |
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| 393 | ! |
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[1691] | 394 | !-- Use either Newton iteration or a lookup table for the bulk Richardson |
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| 395 | !-- number to calculate the Obukhov length |
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[1788] | 396 | ELSEIF ( most_method == 'newton' .OR. most_method == 'lookup' ) THEN |
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[2232] | 397 | ! |
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| 398 | !-- Default-type upward-facing horizontal surfaces |
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| 399 | IF ( surf_def_h(0)%ns >= 1 ) THEN |
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| 400 | surf => surf_def_h(0) |
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| 401 | CALL calc_uvw_abs |
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| 402 | IF ( .NOT. neutral ) CALL calc_ol |
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| 403 | CALL calc_us |
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| 404 | CALL calc_scaling_parameters |
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| 405 | CALL calc_surface_fluxes |
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[1691] | 406 | ENDIF |
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[2232] | 407 | ! |
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| 408 | !-- Natural-type horizontal surfaces |
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| 409 | IF ( surf_lsm_h%ns >= 1 ) THEN |
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| 410 | surf => surf_lsm_h |
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| 411 | CALL calc_uvw_abs |
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| 412 | IF ( .NOT. neutral ) CALL calc_ol |
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| 413 | CALL calc_us |
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| 414 | CALL calc_scaling_parameters |
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| 415 | CALL calc_surface_fluxes |
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| 416 | ENDIF |
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| 417 | ! |
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| 418 | !-- Urban-type horizontal surfaces |
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| 419 | IF ( surf_usm_h%ns >= 1 ) THEN |
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| 420 | surf => surf_usm_h |
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| 421 | CALL calc_uvw_abs |
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| 422 | IF ( .NOT. neutral ) CALL calc_ol |
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| 423 | CALL calc_us |
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| 424 | CALL calc_scaling_parameters |
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| 425 | CALL calc_surface_fluxes |
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| 426 | ENDIF |
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[1691] | 427 | |
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[2232] | 428 | ENDIF |
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| 429 | ! |
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| 430 | !-- Treat downward-facing horizontal surfaces. Note, so far, these are |
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| 431 | !-- always default type. Stratification is not considered |
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| 432 | !-- in this case, hence, no further distinction between different |
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| 433 | !-- most_method is required. |
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| 434 | IF ( surf_def_h(1)%ns >= 1 ) THEN |
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| 435 | downward = .TRUE. |
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| 436 | surf => surf_def_h(1) |
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| 437 | CALL calc_uvw_abs |
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[1691] | 438 | CALL calc_us |
---|
| 439 | CALL calc_surface_fluxes |
---|
[2232] | 440 | downward = .FALSE. |
---|
[1691] | 441 | ENDIF |
---|
[2232] | 442 | ! |
---|
| 443 | !-- Calculate surfaces fluxes at vertical surfaces for momentum |
---|
| 444 | !-- and subgrid-scale TKE. |
---|
| 445 | !-- No stability is considered. Therefore, scaling parameters and Obukhov- |
---|
| 446 | !-- length do not need to be calculated and no distinction in 'circular', |
---|
| 447 | !-- 'Newton' or 'lookup' is necessary so far. |
---|
| 448 | !-- Note, this will change if stability is once considered. |
---|
| 449 | surf_vertical = .TRUE. |
---|
| 450 | ! |
---|
| 451 | !-- Calculate horizontal momentum fluxes at north- and south-facing |
---|
| 452 | !-- surfaces(usvs). |
---|
| 453 | !-- For default-type surfaces |
---|
| 454 | mom_uv = .TRUE. |
---|
| 455 | DO l = 0, 1 |
---|
| 456 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
| 457 | surf => surf_def_v(l) |
---|
| 458 | ! |
---|
| 459 | !-- Compute surface-parallel velocity |
---|
| 460 | CALL calc_uvw_abs_v_ugrid |
---|
| 461 | ! |
---|
| 462 | !-- Compute respective friction velocity on staggered grid |
---|
| 463 | CALL calc_us |
---|
| 464 | ! |
---|
| 465 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 466 | CALL calc_surface_fluxes |
---|
| 467 | ENDIF |
---|
| 468 | ENDDO |
---|
| 469 | ! |
---|
| 470 | !-- For natural-type surfaces. Please note, even though stability is not |
---|
| 471 | !-- considered for the calculation of momentum fluxes at vertical surfaces, |
---|
| 472 | !-- scaling parameters and Obukov length are calculated nevertheless in this |
---|
| 473 | !-- case. This is due to the requirement of ts in parameterization of heat |
---|
| 474 | !-- flux in land-surface model in case of aero_resist_kray is not true. |
---|
| 475 | IF ( .NOT. aero_resist_kray ) THEN |
---|
| 476 | IF ( most_method == 'circular' ) THEN |
---|
| 477 | DO l = 0, 1 |
---|
| 478 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 479 | surf => surf_lsm_v(l) |
---|
| 480 | ! |
---|
| 481 | !-- Compute scaling parameters |
---|
| 482 | CALL calc_scaling_parameters |
---|
| 483 | ! |
---|
| 484 | !-- Compute surface-parallel velocity |
---|
| 485 | CALL calc_uvw_abs_v_ugrid |
---|
| 486 | ! |
---|
| 487 | !-- Compute Obukhov length |
---|
| 488 | IF ( .NOT. neutral ) CALL calc_ol |
---|
| 489 | ! |
---|
| 490 | !-- Compute respective friction velocity on staggered grid |
---|
| 491 | CALL calc_us |
---|
| 492 | ! |
---|
| 493 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 494 | CALL calc_surface_fluxes |
---|
| 495 | ENDIF |
---|
| 496 | ENDDO |
---|
| 497 | ELSE |
---|
| 498 | DO l = 0, 1 |
---|
| 499 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 500 | surf => surf_lsm_v(l) |
---|
| 501 | ! |
---|
| 502 | !-- Compute surface-parallel velocity |
---|
| 503 | CALL calc_uvw_abs_v_ugrid |
---|
| 504 | ! |
---|
| 505 | !-- Compute Obukhov length |
---|
| 506 | IF ( .NOT. neutral ) CALL calc_ol |
---|
| 507 | ! |
---|
| 508 | !-- Compute respective friction velocity on staggered grid |
---|
| 509 | CALL calc_us |
---|
| 510 | ! |
---|
| 511 | !-- Compute scaling parameters |
---|
| 512 | CALL calc_scaling_parameters |
---|
| 513 | ! |
---|
| 514 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 515 | CALL calc_surface_fluxes |
---|
| 516 | ENDIF |
---|
| 517 | ENDDO |
---|
| 518 | ENDIF |
---|
| 519 | ! |
---|
| 520 | !-- No ts is required, so scaling parameters and Obukhov length do not need |
---|
| 521 | !-- to be computed. |
---|
| 522 | ELSE |
---|
| 523 | DO l = 0, 1 |
---|
| 524 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 525 | surf => surf_lsm_v(l) |
---|
| 526 | ! |
---|
| 527 | !-- Compute surface-parallel velocity |
---|
| 528 | CALL calc_uvw_abs_v_ugrid |
---|
| 529 | ! |
---|
| 530 | !-- Compute respective friction velocity on staggered grid |
---|
| 531 | CALL calc_us |
---|
| 532 | ! |
---|
| 533 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 534 | CALL calc_surface_fluxes |
---|
| 535 | ENDIF |
---|
| 536 | ENDDO |
---|
| 537 | ENDIF |
---|
| 538 | ! |
---|
| 539 | !-- For urban-type surfaces |
---|
| 540 | DO l = 0, 1 |
---|
| 541 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
| 542 | surf => surf_usm_v(l) |
---|
| 543 | ! |
---|
| 544 | !-- Compute surface-parallel velocity |
---|
| 545 | CALL calc_uvw_abs_v_ugrid |
---|
| 546 | ! |
---|
| 547 | !-- Compute respective friction velocity on staggered grid |
---|
| 548 | CALL calc_us |
---|
| 549 | ! |
---|
| 550 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 551 | CALL calc_surface_fluxes |
---|
| 552 | ENDIF |
---|
| 553 | ENDDO |
---|
| 554 | ! |
---|
| 555 | !-- Calculate horizontal momentum fluxes at east- and west-facing |
---|
| 556 | !-- surfaces (vsus). |
---|
| 557 | !-- For default-type surfaces |
---|
| 558 | DO l = 2, 3 |
---|
| 559 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
| 560 | surf => surf_def_v(l) |
---|
| 561 | ! |
---|
| 562 | !-- Compute surface-parallel velocity |
---|
| 563 | CALL calc_uvw_abs_v_vgrid |
---|
| 564 | ! |
---|
| 565 | !-- Compute respective friction velocity on staggered grid |
---|
| 566 | CALL calc_us |
---|
| 567 | ! |
---|
| 568 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 569 | CALL calc_surface_fluxes |
---|
| 570 | ENDIF |
---|
| 571 | ENDDO |
---|
| 572 | ! |
---|
| 573 | !-- For natural-type surfaces. Please note, even though stability is not |
---|
| 574 | !-- considered for the calculation of momentum fluxes at vertical surfaces, |
---|
| 575 | !-- scaling parameters and Obukov length are calculated nevertheless in this |
---|
| 576 | !-- case. This is due to the requirement of ts in parameterization of heat |
---|
| 577 | !-- flux in land-surface model in case of aero_resist_kray is not true. |
---|
| 578 | IF ( .NOT. aero_resist_kray ) THEN |
---|
| 579 | IF ( most_method == 'circular' ) THEN |
---|
| 580 | DO l = 2, 3 |
---|
| 581 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 582 | surf => surf_lsm_v(l) |
---|
| 583 | ! |
---|
| 584 | !-- Compute scaling parameters |
---|
| 585 | CALL calc_scaling_parameters |
---|
| 586 | ! |
---|
| 587 | !-- Compute surface-parallel velocity |
---|
| 588 | CALL calc_uvw_abs_v_vgrid |
---|
| 589 | ! |
---|
| 590 | !-- Compute Obukhov length |
---|
| 591 | IF ( .NOT. neutral ) CALL calc_ol |
---|
| 592 | ! |
---|
| 593 | !-- Compute respective friction velocity on staggered grid |
---|
| 594 | CALL calc_us |
---|
| 595 | ! |
---|
| 596 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 597 | CALL calc_surface_fluxes |
---|
| 598 | ENDIF |
---|
| 599 | ENDDO |
---|
| 600 | ELSE |
---|
| 601 | DO l = 2, 3 |
---|
| 602 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 603 | surf => surf_lsm_v(l) |
---|
| 604 | ! |
---|
| 605 | !-- Compute surface-parallel velocity |
---|
| 606 | CALL calc_uvw_abs_v_vgrid |
---|
| 607 | ! |
---|
| 608 | !-- Compute Obukhov length |
---|
| 609 | IF ( .NOT. neutral ) CALL calc_ol |
---|
| 610 | ! |
---|
| 611 | !-- Compute respective friction velocity on staggered grid |
---|
| 612 | CALL calc_us |
---|
| 613 | ! |
---|
| 614 | !-- Compute scaling parameters |
---|
| 615 | CALL calc_scaling_parameters |
---|
| 616 | ! |
---|
| 617 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 618 | CALL calc_surface_fluxes |
---|
| 619 | ENDIF |
---|
| 620 | ENDDO |
---|
| 621 | ENDIF |
---|
| 622 | ELSE |
---|
| 623 | DO l = 2, 3 |
---|
| 624 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 625 | surf => surf_lsm_v(l) |
---|
| 626 | ! |
---|
| 627 | !-- Compute surface-parallel velocity |
---|
| 628 | CALL calc_uvw_abs_v_vgrid |
---|
| 629 | ! |
---|
| 630 | !-- Compute respective friction velocity on staggered grid |
---|
| 631 | CALL calc_us |
---|
| 632 | ! |
---|
| 633 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 634 | CALL calc_surface_fluxes |
---|
| 635 | ENDIF |
---|
| 636 | ENDDO |
---|
| 637 | ENDIF |
---|
| 638 | ! |
---|
| 639 | !-- For urban-type surfaces |
---|
| 640 | DO l = 2, 3 |
---|
| 641 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
| 642 | surf => surf_usm_v(l) |
---|
| 643 | ! |
---|
| 644 | !-- Compute surface-parallel velocity |
---|
| 645 | CALL calc_uvw_abs_v_vgrid |
---|
| 646 | ! |
---|
| 647 | !-- Compute respective friction velocity on staggered grid |
---|
| 648 | CALL calc_us |
---|
| 649 | ! |
---|
| 650 | !-- Compute respective surface fluxes for momentum and TKE |
---|
| 651 | CALL calc_surface_fluxes |
---|
| 652 | ENDIF |
---|
| 653 | ENDDO |
---|
| 654 | mom_uv = .FALSE. |
---|
| 655 | ! |
---|
| 656 | !-- Calculate horizontal momentum fluxes of w (wsus and wsvs) at vertial |
---|
| 657 | !-- surfaces. |
---|
| 658 | mom_w = .TRUE. |
---|
| 659 | ! |
---|
| 660 | !-- Default-type surfaces |
---|
| 661 | DO l = 0, 3 |
---|
| 662 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
| 663 | surf => surf_def_v(l) |
---|
| 664 | CALL calc_uvw_abs_v_wgrid |
---|
| 665 | CALL calc_us |
---|
| 666 | CALL calc_surface_fluxes |
---|
| 667 | ENDIF |
---|
| 668 | ENDDO |
---|
| 669 | ! |
---|
| 670 | !-- Natural-type surfaces |
---|
| 671 | DO l = 0, 3 |
---|
| 672 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 673 | surf => surf_lsm_v(l) |
---|
| 674 | CALL calc_uvw_abs_v_wgrid |
---|
| 675 | CALL calc_us |
---|
| 676 | CALL calc_surface_fluxes |
---|
| 677 | ENDIF |
---|
| 678 | ENDDO |
---|
| 679 | ! |
---|
| 680 | !-- Urban-type surfaces |
---|
| 681 | DO l = 0, 3 |
---|
| 682 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
| 683 | surf => surf_usm_v(l) |
---|
| 684 | CALL calc_uvw_abs_v_wgrid |
---|
| 685 | CALL calc_us |
---|
| 686 | CALL calc_surface_fluxes |
---|
| 687 | ENDIF |
---|
| 688 | ENDDO |
---|
| 689 | mom_w = .FALSE. |
---|
| 690 | ! |
---|
| 691 | !-- Calculate momentum fluxes usvs, vsus, wsus and wsvs at vertical |
---|
| 692 | !-- surfaces for TKE production. Note, here, momentum fluxes are defined |
---|
| 693 | !-- at grid center and are not staggered as before. |
---|
| 694 | mom_tke = .TRUE. |
---|
| 695 | ! |
---|
| 696 | !-- Default-type surfaces |
---|
| 697 | DO l = 0, 3 |
---|
| 698 | IF ( surf_def_v(l)%ns >= 1 ) THEN |
---|
| 699 | surf => surf_def_v(l) |
---|
| 700 | CALL calc_uvw_abs_v_sgrid |
---|
| 701 | CALL calc_us |
---|
| 702 | CALL calc_surface_fluxes |
---|
| 703 | ENDIF |
---|
| 704 | ENDDO |
---|
| 705 | ! |
---|
| 706 | !-- Natural-type surfaces |
---|
| 707 | DO l = 0, 3 |
---|
| 708 | IF ( surf_lsm_v(l)%ns >= 1 ) THEN |
---|
| 709 | surf => surf_lsm_v(l) |
---|
| 710 | CALL calc_uvw_abs_v_sgrid |
---|
| 711 | CALL calc_us |
---|
| 712 | CALL calc_surface_fluxes |
---|
| 713 | ENDIF |
---|
| 714 | ENDDO |
---|
| 715 | ! |
---|
| 716 | !-- Urban-type surfaces |
---|
| 717 | DO l = 0, 3 |
---|
| 718 | IF ( surf_usm_v(l)%ns >= 1 ) THEN |
---|
| 719 | surf => surf_usm_v(l) |
---|
| 720 | CALL calc_uvw_abs_v_sgrid |
---|
| 721 | CALL calc_us |
---|
| 722 | CALL calc_surface_fluxes |
---|
| 723 | ENDIF |
---|
| 724 | ENDDO |
---|
| 725 | mom_tke = .FALSE. |
---|
| 726 | |
---|
[1691] | 727 | |
---|
| 728 | END SUBROUTINE surface_layer_fluxes |
---|
| 729 | |
---|
| 730 | |
---|
| 731 | !------------------------------------------------------------------------------! |
---|
| 732 | ! Description: |
---|
| 733 | ! ------------ |
---|
| 734 | !> Initializing actions for the surface layer routine. Basically, this involves |
---|
| 735 | !> the preparation of a lookup table for the the bulk Richardson number vs |
---|
| 736 | !> Obukhov length L when using the lookup table method. |
---|
| 737 | !------------------------------------------------------------------------------! |
---|
| 738 | SUBROUTINE init_surface_layer_fluxes |
---|
| 739 | |
---|
| 740 | IMPLICIT NONE |
---|
| 741 | |
---|
[2232] | 742 | INTEGER(iwp) :: li, & !< Index for loop to create lookup table |
---|
[1691] | 743 | num_steps_n !< Number of non-stretched zeta steps |
---|
| 744 | |
---|
| 745 | LOGICAL :: terminate_run_l = .FALSE. !< Flag to terminate run (global) |
---|
| 746 | |
---|
| 747 | REAL(wp), PARAMETER :: zeta_stretch = -10.0_wp !< Start of stretching in the free convection limit |
---|
| 748 | |
---|
| 749 | REAL(wp), DIMENSION(:), ALLOCATABLE :: zeta_tmp |
---|
| 750 | |
---|
| 751 | |
---|
| 752 | REAL(wp) :: zeta_step, & !< Increment of zeta |
---|
| 753 | regr = 1.01_wp, & !< Stretching factor of zeta_step in the free convection limit |
---|
| 754 | regr_old = 1.0E9_wp, & !< Stretching factor of last iteration step |
---|
| 755 | z0h_min = 0.0_wp, & !< Minimum value of z0h to create table |
---|
| 756 | z0_min = 0.0_wp !< Minimum value of z0 to create table |
---|
| 757 | |
---|
| 758 | |
---|
[1709] | 759 | |
---|
[2232] | 760 | |
---|
[1709] | 761 | ! |
---|
| 762 | !-- In case of runs with neutral statification, set Obukhov length to a |
---|
| 763 | !-- large value |
---|
[2232] | 764 | IF ( neutral ) THEN |
---|
| 765 | IF ( surf_def_h(0)%ns >= 1 ) surf_def_h(0)%ol = 1.0E10_wp |
---|
| 766 | IF ( surf_lsm_h%ns >= 1 ) surf_lsm_h%ol = 1.0E10_wp |
---|
| 767 | IF ( surf_usm_h%ns >= 1 ) surf_usm_h%ol = 1.0E10_wp |
---|
| 768 | ENDIF |
---|
[1709] | 769 | |
---|
[1691] | 770 | IF ( most_method == 'lookup' ) THEN |
---|
| 771 | |
---|
| 772 | ! |
---|
| 773 | !-- Check for roughness heterogeneity. In that case terminate run and |
---|
[2232] | 774 | !-- inform user. Check for both, natural and non-natural walls. |
---|
| 775 | IF ( surf_def_h(0)%ns >= 1 ) THEN |
---|
| 776 | IF ( MINVAL( surf_def_h(0)%z0h ) /= MAXVAL( surf_def_h(0)%z0h ) .OR. & |
---|
| 777 | MINVAL( surf_def_h(0)%z0 ) /= MAXVAL( surf_def_h(0)%z0 ) ) THEN |
---|
| 778 | terminate_run_l = .TRUE. |
---|
| 779 | ENDIF |
---|
[1691] | 780 | ENDIF |
---|
[2232] | 781 | IF ( surf_lsm_h%ns >= 1 ) THEN |
---|
| 782 | IF ( MINVAL( surf_lsm_h%z0h ) /= MAXVAL( surf_lsm_h%z0h ) .OR. & |
---|
| 783 | MINVAL( surf_lsm_h%z0 ) /= MAXVAL( surf_lsm_h%z0 ) ) THEN |
---|
| 784 | terminate_run_l = .TRUE. |
---|
| 785 | ENDIF |
---|
| 786 | ENDIF |
---|
| 787 | IF ( surf_usm_h%ns >= 1 ) THEN |
---|
| 788 | IF ( MINVAL( surf_usm_h%z0h ) /= MAXVAL( surf_usm_h%z0h ) .OR. & |
---|
| 789 | MINVAL( surf_usm_h%z0 ) /= MAXVAL( surf_usm_h%z0 ) ) THEN |
---|
| 790 | terminate_run_l = .TRUE. |
---|
| 791 | ENDIF |
---|
| 792 | ENDIF |
---|
| 793 | ! |
---|
| 794 | !-- Check roughness homogeneity between differt surface types. |
---|
| 795 | IF ( surf_lsm_h%ns >= 1 .AND. surf_def_h(0)%ns >= 1 ) THEN |
---|
| 796 | IF ( MINVAL( surf_lsm_h%z0h ) /= MAXVAL( surf_def_h(0)%z0h ) .OR. & |
---|
| 797 | MINVAL( surf_lsm_h%z0 ) /= MAXVAL( surf_def_h(0)%z0 ) ) THEN |
---|
| 798 | terminate_run_l = .TRUE. |
---|
| 799 | ENDIF |
---|
| 800 | ENDIF |
---|
| 801 | IF ( surf_usm_h%ns >= 1 .AND. surf_def_h(0)%ns >= 1 ) THEN |
---|
| 802 | IF ( MINVAL( surf_usm_h%z0h ) /= MAXVAL( surf_def_h(0)%z0h ) .OR. & |
---|
| 803 | MINVAL( surf_usm_h%z0 ) /= MAXVAL( surf_def_h(0)%z0 ) ) THEN |
---|
| 804 | terminate_run_l = .TRUE. |
---|
| 805 | ENDIF |
---|
| 806 | ENDIF |
---|
| 807 | IF ( surf_usm_h%ns >= 1 .AND. surf_lsm_h%ns >= 1 ) THEN |
---|
| 808 | IF ( MINVAL( surf_usm_h%z0h ) /= MAXVAL( surf_lsm_h%z0h ) .OR. & |
---|
| 809 | MINVAL( surf_usm_h%z0 ) /= MAXVAL( surf_lsm_h%z0 ) ) THEN |
---|
| 810 | terminate_run_l = .TRUE. |
---|
| 811 | ENDIF |
---|
| 812 | ENDIF |
---|
[1691] | 813 | |
---|
[2232] | 814 | |
---|
[1691] | 815 | #if defined( __parallel ) |
---|
| 816 | ! |
---|
| 817 | !-- Make a logical OR for all processes. Force termiation of model if result |
---|
| 818 | !-- is TRUE |
---|
| 819 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 820 | CALL MPI_ALLREDUCE( terminate_run_l, terminate_run, 1, MPI_LOGICAL, & |
---|
| 821 | MPI_LOR, comm2d, ierr ) |
---|
| 822 | #else |
---|
| 823 | terminate_run = terminate_run_l |
---|
| 824 | #endif |
---|
| 825 | |
---|
| 826 | IF ( terminate_run ) THEN |
---|
| 827 | message_string = 'most_method = "lookup" cannot be used in ' // & |
---|
| 828 | 'combination with a prescribed roughness ' // & |
---|
| 829 | 'heterogeneity' |
---|
| 830 | CALL message( 'surface_layer_fluxes', 'PA0417', 1, 2, 0, 6, 0 ) |
---|
| 831 | ENDIF |
---|
| 832 | |
---|
| 833 | ALLOCATE( zeta_tmp(0:num_steps-1) ) |
---|
| 834 | |
---|
| 835 | ! |
---|
| 836 | !-- Use the lowest possible value for z_mo |
---|
[2232] | 837 | k = nzb |
---|
[1691] | 838 | z_mo = zu(k+1) - zw(k) |
---|
| 839 | |
---|
| 840 | ! |
---|
| 841 | !-- Calculate z/L range from zeta_stretch to zeta_max using 90% of the |
---|
| 842 | !-- available steps (num_steps). The calculation is done with negative |
---|
| 843 | !-- values of zeta in order to simplify the stretching in the free |
---|
| 844 | !-- convection limit for the remaining 10% of steps. |
---|
| 845 | zeta_tmp(0) = - zeta_max |
---|
| 846 | num_steps_n = ( num_steps * 9 / 10 ) - 1 |
---|
| 847 | zeta_step = (zeta_max - zeta_stretch) / REAL(num_steps_n) |
---|
| 848 | |
---|
[2232] | 849 | DO li = 1, num_steps_n |
---|
| 850 | zeta_tmp(li) = zeta_tmp(li-1) + zeta_step |
---|
[1691] | 851 | ENDDO |
---|
| 852 | |
---|
| 853 | ! |
---|
| 854 | !-- Calculate stretching factor for the free convection range |
---|
[1788] | 855 | DO WHILE ( ABS( (regr-regr_old) / regr_old ) > 1.0E-10_wp ) |
---|
[1691] | 856 | regr_old = regr |
---|
| 857 | regr = ( 1.0_wp - ( -zeta_min / zeta_step ) * ( 1.0_wp - regr ) & |
---|
| 858 | )**( 10.0_wp / REAL(num_steps) ) |
---|
| 859 | ENDDO |
---|
| 860 | |
---|
| 861 | ! |
---|
| 862 | !-- Calculate z/L range from zeta_min to zeta_stretch |
---|
[2232] | 863 | DO li = num_steps_n+1, num_steps-1 |
---|
| 864 | zeta_tmp(li) = zeta_tmp(li-1) + zeta_step |
---|
[1691] | 865 | zeta_step = zeta_step * regr |
---|
| 866 | ENDDO |
---|
| 867 | |
---|
| 868 | ! |
---|
[1757] | 869 | !-- Save roughness lengths to temporary variables |
---|
[2232] | 870 | IF ( surf_def_h(0)%ns >= 1 ) THEN |
---|
| 871 | z0h_min = surf_def_h(0)%z0h(1) |
---|
| 872 | z0_min = surf_def_h(0)%z0(1) |
---|
| 873 | ELSEIF ( surf_lsm_h%ns >= 1 ) THEN |
---|
| 874 | z0h_min = surf_lsm_h%z0h(1) |
---|
| 875 | z0_min = surf_lsm_h%z0(1) |
---|
| 876 | ELSEIF ( surf_usm_h%ns >= 1 ) THEN |
---|
| 877 | z0h_min = surf_usm_h%z0h(1) |
---|
| 878 | z0_min = surf_usm_h%z0(1) |
---|
| 879 | ENDIF |
---|
[1691] | 880 | ! |
---|
| 881 | !-- Calculate lookup table for the Richardson number versus Obukhov length |
---|
| 882 | !-- The Richardson number (rib) is defined depending on the choice of |
---|
| 883 | !-- boundary conditions for temperature |
---|
| 884 | IF ( ibc_pt_b == 1 ) THEN |
---|
[2232] | 885 | DO li = 0, num_steps-1 |
---|
| 886 | ol_tab(li) = - z_mo / zeta_tmp(num_steps-1-li) |
---|
| 887 | rib_tab(li) = z_mo / ol_tab(li) / ( LOG( z_mo / z0_min ) & |
---|
| 888 | - psi_m( z_mo / ol_tab(li) ) & |
---|
| 889 | + psi_m( z0_min / ol_tab(li) ) & |
---|
[1691] | 890 | )**3 |
---|
| 891 | ENDDO |
---|
| 892 | ELSE |
---|
[2232] | 893 | DO li = 0, num_steps-1 |
---|
| 894 | ol_tab(li) = - z_mo / zeta_tmp(num_steps-1-li) |
---|
| 895 | rib_tab(li) = z_mo / ol_tab(li) * ( LOG( z_mo / z0h_min ) & |
---|
| 896 | - psi_h( z_mo / ol_tab(li) ) & |
---|
| 897 | + psi_h( z0h_min / ol_tab(li) ) & |
---|
[1691] | 898 | ) & |
---|
| 899 | / ( LOG( z_mo / z0_min ) & |
---|
[2232] | 900 | - psi_m( z_mo / ol_tab(li) ) & |
---|
| 901 | + psi_m( z0_min / ol_tab(li) ) & |
---|
[1691] | 902 | )**2 |
---|
| 903 | ENDDO |
---|
| 904 | ENDIF |
---|
| 905 | |
---|
| 906 | ! |
---|
| 907 | !-- Determine minimum values of rib in the lookup table. Set upper limit |
---|
| 908 | !-- to critical Richardson number (0.25) |
---|
| 909 | rib_min = MINVAL(rib_tab) |
---|
| 910 | rib_max = 0.25 !MAXVAL(rib_tab) |
---|
| 911 | |
---|
| 912 | DEALLOCATE( zeta_tmp ) |
---|
| 913 | ENDIF |
---|
| 914 | |
---|
| 915 | END SUBROUTINE init_surface_layer_fluxes |
---|
| 916 | |
---|
| 917 | |
---|
| 918 | !------------------------------------------------------------------------------! |
---|
| 919 | ! Description: |
---|
| 920 | ! ------------ |
---|
[1709] | 921 | !> Compute the absolute value of the horizontal velocity (relative to the |
---|
[2232] | 922 | !> surface) for horizontal surface elements. This is required by all methods. |
---|
[1691] | 923 | !------------------------------------------------------------------------------! |
---|
[2232] | 924 | SUBROUTINE calc_uvw_abs |
---|
[1691] | 925 | |
---|
| 926 | IMPLICIT NONE |
---|
| 927 | |
---|
[2232] | 928 | INTEGER(iwp) :: i !< running index x direction |
---|
| 929 | INTEGER(iwp) :: ibit !< flag to mask computation of relative velocity in case of downward-facing surfaces |
---|
| 930 | INTEGER(iwp) :: j !< running index y direction |
---|
| 931 | INTEGER(iwp) :: k !< running index z direction |
---|
| 932 | INTEGER(iwp) :: m !< running index surface elements |
---|
[1691] | 933 | |
---|
[2232] | 934 | ! |
---|
| 935 | !-- ibit is 1 for upward-facing surfaces, zero for downward-facing surfaces. |
---|
| 936 | ibit = MERGE( 1, 0, .NOT. downward ) |
---|
[1691] | 937 | |
---|
[2232] | 938 | DO m = 1, surf%ns |
---|
[1691] | 939 | |
---|
[2232] | 940 | i = surf%i(m) |
---|
| 941 | j = surf%j(m) |
---|
| 942 | k = surf%k(m) |
---|
[1691] | 943 | ! |
---|
[2232] | 944 | !-- Compute the absolute value of the horizontal velocity. |
---|
| 945 | !-- (relative to the surface in case the lower surface is the ocean). |
---|
| 946 | !-- Please note, in new surface modelling concept the index values changed, |
---|
| 947 | !-- i.e. the reference grid point is not the surface-grid point itself but |
---|
| 948 | !-- the first grid point outside of the topography. |
---|
| 949 | !-- Note, in case of coupled ocean-atmosphere simulations relative velocity |
---|
| 950 | !-- with respect to the ocean surface is used, hence, (k-1,j,i) values |
---|
| 951 | !-- are used to calculate the absolute velocity. |
---|
| 952 | !-- However, this do not apply for downward-facing walls. To mask this, |
---|
| 953 | !-- use ibit, which checks for upward/downward-facing surfaces. |
---|
| 954 | surf%uvw_abs(m) = SQRT( & |
---|
| 955 | ( 0.5_wp * ( u(k,j,i) + u(k,j,i+1) & |
---|
| 956 | - ( u(k-1,j,i) + u(k-1,j,i+1) & |
---|
| 957 | ) * ibit & |
---|
| 958 | ) & |
---|
| 959 | )**2 + & |
---|
| 960 | ( 0.5_wp * ( v(k,j,i) + v(k,j+1,i) & |
---|
| 961 | - ( v(k-1,j,i) + v(k-1,j+1,i) & |
---|
| 962 | ) * ibit & |
---|
| 963 | ) & |
---|
| 964 | )**2 & |
---|
| 965 | ) |
---|
| 966 | |
---|
[1691] | 967 | ENDDO |
---|
| 968 | |
---|
[2232] | 969 | END SUBROUTINE calc_uvw_abs |
---|
| 970 | |
---|
| 971 | |
---|
| 972 | !------------------------------------------------------------------------------! |
---|
| 973 | ! Description: |
---|
| 974 | ! ------------ |
---|
| 975 | !> Compute the absolute value of the horizontal velocity (relative to the |
---|
| 976 | !> surface) for horizontal surface elements. This is required by all methods. |
---|
| 977 | !------------------------------------------------------------------------------! |
---|
| 978 | SUBROUTINE calc_uvw_abs_v_ugrid |
---|
| 979 | |
---|
| 980 | IMPLICIT NONE |
---|
| 981 | |
---|
| 982 | INTEGER(iwp) :: i !< running index x direction |
---|
| 983 | INTEGER(iwp) :: j !< running index y direction |
---|
| 984 | INTEGER(iwp) :: k !< running index z direction |
---|
| 985 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 986 | |
---|
| 987 | REAL(wp) :: u_i |
---|
| 988 | REAL(wp) :: w_i |
---|
| 989 | |
---|
| 990 | |
---|
| 991 | DO m = 1, surf%ns |
---|
| 992 | i = surf%i(m) |
---|
| 993 | j = surf%j(m) |
---|
| 994 | k = surf%k(m) |
---|
[1691] | 995 | ! |
---|
[2232] | 996 | !-- Compute the absolute value of the surface parallel velocity on u-grid. |
---|
| 997 | u_i = u(k,j,i) |
---|
| 998 | w_i = 0.25_wp * ( w(k-1,j,i-1) + w(k-1,j,i) + & |
---|
| 999 | w(k,j,i-1) + w(k,j,i) ) |
---|
[1691] | 1000 | |
---|
[2232] | 1001 | surf%uvw_abs(m) = SQRT( u_i**2 + w_i**2 ) |
---|
[1709] | 1002 | |
---|
[2232] | 1003 | ENDDO |
---|
[1709] | 1004 | |
---|
[2232] | 1005 | END SUBROUTINE calc_uvw_abs_v_ugrid |
---|
| 1006 | |
---|
[1709] | 1007 | !------------------------------------------------------------------------------! |
---|
| 1008 | ! Description: |
---|
| 1009 | ! ------------ |
---|
[2232] | 1010 | !> Compute the absolute value of the horizontal velocity (relative to the |
---|
| 1011 | !> surface) for horizontal surface elements. This is required by all methods. |
---|
| 1012 | !------------------------------------------------------------------------------! |
---|
| 1013 | SUBROUTINE calc_uvw_abs_v_vgrid |
---|
| 1014 | |
---|
| 1015 | IMPLICIT NONE |
---|
| 1016 | |
---|
| 1017 | INTEGER(iwp) :: i !< running index x direction |
---|
| 1018 | INTEGER(iwp) :: j !< running index y direction |
---|
| 1019 | INTEGER(iwp) :: k !< running index z direction |
---|
| 1020 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 1021 | |
---|
| 1022 | REAL(wp) :: v_i |
---|
| 1023 | REAL(wp) :: w_i |
---|
| 1024 | |
---|
| 1025 | |
---|
| 1026 | DO m = 1, surf%ns |
---|
| 1027 | i = surf%i(m) |
---|
| 1028 | j = surf%j(m) |
---|
| 1029 | k = surf%k(m) |
---|
| 1030 | |
---|
| 1031 | v_i = u(k,j,i) |
---|
| 1032 | w_i = 0.25_wp * ( w(k-1,j-1,i) + w(k-1,j,i) + & |
---|
| 1033 | w(k,j-1,i) + w(k,j,i) ) |
---|
| 1034 | |
---|
| 1035 | surf%uvw_abs(m) = SQRT( v_i**2 + w_i**2 ) |
---|
| 1036 | |
---|
| 1037 | ENDDO |
---|
| 1038 | |
---|
| 1039 | END SUBROUTINE calc_uvw_abs_v_vgrid |
---|
| 1040 | |
---|
| 1041 | !------------------------------------------------------------------------------! |
---|
| 1042 | ! Description: |
---|
| 1043 | ! ------------ |
---|
| 1044 | !> Compute the absolute value of the horizontal velocity (relative to the |
---|
| 1045 | !> surface) for horizontal surface elements. This is required by all methods. |
---|
| 1046 | !------------------------------------------------------------------------------! |
---|
| 1047 | SUBROUTINE calc_uvw_abs_v_wgrid |
---|
| 1048 | |
---|
| 1049 | IMPLICIT NONE |
---|
| 1050 | |
---|
| 1051 | INTEGER(iwp) :: i !< running index x direction |
---|
| 1052 | INTEGER(iwp) :: j !< running index y direction |
---|
| 1053 | INTEGER(iwp) :: k !< running index z direction |
---|
| 1054 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 1055 | |
---|
| 1056 | REAL(wp) :: u_i |
---|
| 1057 | REAL(wp) :: v_i |
---|
| 1058 | REAL(wp) :: w_i |
---|
| 1059 | ! |
---|
| 1060 | !-- North- (l=0) and south-facing (l=1) surfaces |
---|
| 1061 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
| 1062 | DO m = 1, surf%ns |
---|
| 1063 | i = surf%i(m) |
---|
| 1064 | j = surf%j(m) |
---|
| 1065 | k = surf%k(m) |
---|
| 1066 | |
---|
| 1067 | u_i = 0.25_wp * ( u(k+1,j,i+1) + u(k+1,j,i) + & |
---|
| 1068 | u(k,j,i+1) + u(k,j,i) ) |
---|
| 1069 | v_i = 0.0_wp |
---|
| 1070 | w_i = w(k,j,i) |
---|
| 1071 | |
---|
| 1072 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
| 1073 | ENDDO |
---|
| 1074 | ! |
---|
| 1075 | !-- East- (l=2) and west-facing (l=3) surfaces |
---|
| 1076 | ELSE |
---|
| 1077 | DO m = 1, surf%ns |
---|
| 1078 | i = surf%i(m) |
---|
| 1079 | j = surf%j(m) |
---|
| 1080 | k = surf%k(m) |
---|
| 1081 | |
---|
| 1082 | u_i = 0.0_wp |
---|
| 1083 | v_i = 0.25_wp * ( v(k+1,j+1,i) + v(k+1,j,i) + & |
---|
| 1084 | v(k,j+1,i) + v(k,j,i) ) |
---|
| 1085 | w_i = w(k,j,i) |
---|
| 1086 | |
---|
| 1087 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
| 1088 | ENDDO |
---|
| 1089 | ENDIF |
---|
| 1090 | |
---|
| 1091 | END SUBROUTINE calc_uvw_abs_v_wgrid |
---|
| 1092 | |
---|
| 1093 | !------------------------------------------------------------------------------! |
---|
| 1094 | ! Description: |
---|
| 1095 | ! ------------ |
---|
| 1096 | !> Compute the absolute value of the horizontal velocity (relative to the |
---|
| 1097 | !> surface) for horizontal surface elements. This is required by all methods. |
---|
| 1098 | !------------------------------------------------------------------------------! |
---|
| 1099 | SUBROUTINE calc_uvw_abs_v_sgrid |
---|
| 1100 | |
---|
| 1101 | IMPLICIT NONE |
---|
| 1102 | |
---|
| 1103 | INTEGER(iwp) :: i !< running index x direction |
---|
| 1104 | INTEGER(iwp) :: j !< running index y direction |
---|
| 1105 | INTEGER(iwp) :: k !< running index z direction |
---|
| 1106 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 1107 | |
---|
| 1108 | REAL(wp) :: u_i |
---|
| 1109 | REAL(wp) :: v_i |
---|
| 1110 | REAL(wp) :: w_i |
---|
| 1111 | |
---|
| 1112 | ! |
---|
| 1113 | !-- North- (l=0) and south-facing (l=1) walls |
---|
| 1114 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
| 1115 | DO m = 1, surf%ns |
---|
| 1116 | i = surf%i(m) |
---|
| 1117 | j = surf%j(m) |
---|
| 1118 | k = surf%k(m) |
---|
| 1119 | |
---|
| 1120 | u_i = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) |
---|
| 1121 | v_i = 0.0_wp |
---|
| 1122 | w_i = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
| 1123 | |
---|
| 1124 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
| 1125 | ENDDO |
---|
| 1126 | ! |
---|
| 1127 | !-- East- (l=2) and west-facing (l=3) walls |
---|
| 1128 | ELSE |
---|
| 1129 | DO m = 1, surf%ns |
---|
| 1130 | i = surf%i(m) |
---|
| 1131 | j = surf%j(m) |
---|
| 1132 | k = surf%k(m) |
---|
| 1133 | |
---|
| 1134 | u_i = 0.0_wp |
---|
| 1135 | v_i = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) |
---|
| 1136 | w_i = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
| 1137 | |
---|
| 1138 | surf%uvw_abs(m) = SQRT( u_i**2 + v_i**2 + w_i**2 ) |
---|
| 1139 | ENDDO |
---|
| 1140 | ENDIF |
---|
| 1141 | |
---|
| 1142 | END SUBROUTINE calc_uvw_abs_v_sgrid |
---|
| 1143 | |
---|
| 1144 | |
---|
| 1145 | !------------------------------------------------------------------------------! |
---|
| 1146 | ! Description: |
---|
| 1147 | ! ------------ |
---|
[1709] | 1148 | !> Calculate the Obukhov length (L) and Richardson flux number (z/L) |
---|
| 1149 | !------------------------------------------------------------------------------! |
---|
| 1150 | SUBROUTINE calc_ol |
---|
| 1151 | |
---|
| 1152 | IMPLICIT NONE |
---|
| 1153 | |
---|
[2232] | 1154 | INTEGER(iwp) :: iter !< Newton iteration step |
---|
| 1155 | INTEGER(iwp) :: li !< look index |
---|
| 1156 | INTEGER(iwp) :: m !< loop variable over all horizontal wall elements |
---|
[1709] | 1157 | |
---|
| 1158 | REAL(wp) :: f, & !< Function for Newton iteration: f = Ri - [...]/[...]^2 = 0 |
---|
| 1159 | f_d_ol, & !< Derivative of f |
---|
| 1160 | ol_l, & !< Lower bound of L for Newton iteration |
---|
| 1161 | ol_m, & !< Previous value of L for Newton iteration |
---|
| 1162 | ol_old, & !< Previous time step value of L |
---|
| 1163 | ol_u !< Upper bound of L for Newton iteration |
---|
| 1164 | |
---|
[1691] | 1165 | IF ( TRIM( most_method ) /= 'circular' ) THEN |
---|
[2232] | 1166 | ! |
---|
| 1167 | !-- Evaluate bulk Richardson number (calculation depends on |
---|
| 1168 | !-- definition based on setting of boundary conditions |
---|
| 1169 | IF ( ibc_pt_b /= 1 ) THEN |
---|
| 1170 | IF ( humidity ) THEN |
---|
| 1171 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1172 | DO m = 1, surf%ns |
---|
[1691] | 1173 | |
---|
[2232] | 1174 | i = surf%i(m) |
---|
| 1175 | j = surf%j(m) |
---|
| 1176 | k = surf%k(m) |
---|
[1691] | 1177 | |
---|
[2232] | 1178 | z_mo = surf%z_mo(m) |
---|
| 1179 | |
---|
| 1180 | surf%rib(m) = g * z_mo * & |
---|
| 1181 | ( vpt(k,j,i) - vpt(k-1,j,i) ) / & |
---|
| 1182 | ( surf%uvw_abs(m)**2 * vpt(k,j,i) + 1.0E-20_wp ) |
---|
| 1183 | ENDDO |
---|
| 1184 | ELSE |
---|
| 1185 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1186 | DO m = 1, surf%ns |
---|
| 1187 | |
---|
| 1188 | i = surf%i(m) |
---|
| 1189 | j = surf%j(m) |
---|
| 1190 | k = surf%k(m) |
---|
| 1191 | |
---|
| 1192 | z_mo = surf%z_mo(m) |
---|
| 1193 | |
---|
| 1194 | surf%rib(m) = g * z_mo * & |
---|
| 1195 | ( pt(k,j,i) - pt(k-1,j,i) ) / & |
---|
| 1196 | ( surf%uvw_abs(m)**2 * pt(k,j,i) + 1.0E-20_wp ) |
---|
| 1197 | ENDDO |
---|
| 1198 | ENDIF |
---|
| 1199 | ELSE |
---|
| 1200 | IF ( humidity ) THEN |
---|
| 1201 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1202 | DO m = 1, surf%ns |
---|
| 1203 | |
---|
| 1204 | i = surf%i(m) |
---|
| 1205 | j = surf%j(m) |
---|
| 1206 | k = surf%k(m) |
---|
| 1207 | |
---|
| 1208 | z_mo = surf%z_mo(m) |
---|
| 1209 | |
---|
| 1210 | surf%rib(m) = - g * z_mo * ( ( 1.0_wp + 0.61_wp & |
---|
| 1211 | * q(k,j,i) ) * surf%shf(m) + 0.61_wp & |
---|
| 1212 | * pt(k,j,i) * surf%qsws(m) ) * & |
---|
| 1213 | drho_air_zw(k-1) / & |
---|
| 1214 | ( surf%uvw_abs(m)**3 * vpt(k,j,i) * kappa**2 & |
---|
[1709] | 1215 | + 1.0E-20_wp ) |
---|
[2232] | 1216 | ENDDO |
---|
| 1217 | ELSE |
---|
| 1218 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1219 | DO m = 1, surf%ns |
---|
[1691] | 1220 | |
---|
[2232] | 1221 | i = surf%i(m) |
---|
| 1222 | j = surf%j(m) |
---|
| 1223 | k = surf%k(m) |
---|
| 1224 | |
---|
| 1225 | z_mo = surf%z_mo(m) |
---|
| 1226 | |
---|
| 1227 | surf%rib(m) = - g * z_mo * surf%shf(m) * & |
---|
| 1228 | drho_air_zw(k-1) / & |
---|
| 1229 | ( surf%uvw_abs(m)**3 * pt(k,j,i) * kappa**2 & |
---|
| 1230 | + 1.0E-20_wp ) |
---|
| 1231 | ENDDO |
---|
| 1232 | ENDIF |
---|
| 1233 | ENDIF |
---|
| 1234 | |
---|
[1691] | 1235 | ENDIF |
---|
| 1236 | |
---|
[2232] | 1237 | |
---|
[1691] | 1238 | ! |
---|
| 1239 | !-- Calculate the Obukhov length either using a Newton iteration |
---|
| 1240 | !-- method, via a lookup table, or using the old circular way |
---|
| 1241 | IF ( TRIM( most_method ) == 'newton' ) THEN |
---|
| 1242 | |
---|
[2232] | 1243 | DO m = 1, surf%ns |
---|
[1691] | 1244 | |
---|
[2232] | 1245 | i = surf%i(m) |
---|
| 1246 | j = surf%j(m) |
---|
[1691] | 1247 | |
---|
[2232] | 1248 | z_mo = surf%z_mo(m) |
---|
| 1249 | |
---|
[1691] | 1250 | ! |
---|
[2232] | 1251 | !-- Store current value in case the Newton iteration fails |
---|
| 1252 | ol_old = surf%ol(m) |
---|
[1691] | 1253 | |
---|
| 1254 | ! |
---|
[2232] | 1255 | !-- Ensure that the bulk Richardson number and the Obukhov |
---|
| 1256 | !-- length have the same sign |
---|
| 1257 | IF ( surf%rib(m) * surf%ol(m) < 0.0_wp .OR. & |
---|
| 1258 | ABS( surf%ol(m) ) == ol_max ) THEN |
---|
| 1259 | IF ( surf%rib(m) > 1.0_wp ) surf%ol(m) = 0.01_wp |
---|
| 1260 | IF ( surf%rib(m) < 0.0_wp ) surf%ol(m) = -0.01_wp |
---|
| 1261 | ENDIF |
---|
[1691] | 1262 | ! |
---|
[2232] | 1263 | !-- Iteration to find Obukhov length |
---|
| 1264 | iter = 0 |
---|
| 1265 | DO |
---|
| 1266 | iter = iter + 1 |
---|
[1691] | 1267 | ! |
---|
[2232] | 1268 | !-- In case of divergence, use the value of the previous time step |
---|
| 1269 | IF ( iter > 1000 ) THEN |
---|
| 1270 | surf%ol(m) = ol_old |
---|
| 1271 | EXIT |
---|
| 1272 | ENDIF |
---|
[1691] | 1273 | |
---|
[2232] | 1274 | ol_m = surf%ol(m) |
---|
| 1275 | ol_l = ol_m - 0.001_wp * ol_m |
---|
| 1276 | ol_u = ol_m + 0.001_wp * ol_m |
---|
[1691] | 1277 | |
---|
| 1278 | |
---|
[2232] | 1279 | IF ( ibc_pt_b /= 1 ) THEN |
---|
[1691] | 1280 | ! |
---|
[2232] | 1281 | !-- Calculate f = Ri - [...]/[...]^2 = 0 |
---|
| 1282 | f = surf%rib(m) - ( z_mo / ol_m ) * ( & |
---|
| 1283 | LOG( z_mo / surf%z0h(m) ) & |
---|
| 1284 | - psi_h( z_mo / ol_m ) & |
---|
| 1285 | + psi_h( surf%z0h(m) / & |
---|
| 1286 | ol_m ) & |
---|
| 1287 | ) & |
---|
| 1288 | / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1289 | - psi_m( z_mo / ol_m ) & |
---|
| 1290 | + psi_m( surf%z0(m) / & |
---|
| 1291 | ol_m ) & |
---|
| 1292 | )**2 |
---|
[1691] | 1293 | |
---|
| 1294 | ! |
---|
[2232] | 1295 | !-- Calculate df/dL |
---|
| 1296 | f_d_ol = ( - ( z_mo / ol_u ) * ( LOG( z_mo / & |
---|
| 1297 | surf%z0h(m) ) & |
---|
| 1298 | - psi_h( z_mo / ol_u ) & |
---|
| 1299 | + psi_h( surf%z0h(m) / ol_u ) & |
---|
| 1300 | ) & |
---|
| 1301 | / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1302 | - psi_m( z_mo / ol_u ) & |
---|
| 1303 | + psi_m( surf%z0(m) / ol_u ) & |
---|
| 1304 | )**2 & |
---|
| 1305 | + ( z_mo / ol_l ) * ( LOG( z_mo / surf%z0h(m) ) & |
---|
| 1306 | - psi_h( z_mo / ol_l ) & |
---|
| 1307 | + psi_h( surf%z0h(m) / ol_l ) & |
---|
| 1308 | ) & |
---|
| 1309 | / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1310 | - psi_m( z_mo / ol_l ) & |
---|
| 1311 | + psi_m( surf%z0(m) / ol_l ) & |
---|
| 1312 | )**2 & |
---|
| 1313 | ) / ( ol_u - ol_l ) |
---|
| 1314 | ELSE |
---|
[1691] | 1315 | ! |
---|
[2232] | 1316 | !-- Calculate f = Ri - 1 /[...]^3 = 0 |
---|
| 1317 | f = surf%rib(m) - ( z_mo / ol_m ) / & |
---|
| 1318 | ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1319 | - psi_m( z_mo / ol_m ) & |
---|
| 1320 | + psi_m( surf%z0(m) / ol_m ) & |
---|
| 1321 | )**3 |
---|
[1691] | 1322 | |
---|
| 1323 | ! |
---|
[2232] | 1324 | !-- Calculate df/dL |
---|
| 1325 | f_d_ol = ( - ( z_mo / ol_u ) / ( LOG( z_mo / & |
---|
| 1326 | surf%z0(m) ) & |
---|
| 1327 | - psi_m( z_mo / ol_u ) & |
---|
| 1328 | + psi_m( surf%z0(m) / ol_u ) & |
---|
| 1329 | )**3 & |
---|
| 1330 | + ( z_mo / ol_l ) / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1331 | - psi_m( z_mo / ol_l ) & |
---|
| 1332 | + psi_m( surf%z0(m) / ol_l ) & |
---|
| 1333 | )**3 & |
---|
| 1334 | ) / ( ol_u - ol_l ) |
---|
| 1335 | ENDIF |
---|
[1691] | 1336 | ! |
---|
[2232] | 1337 | !-- Calculate new L |
---|
| 1338 | surf%ol(m) = ol_m - f / f_d_ol |
---|
[1691] | 1339 | |
---|
| 1340 | ! |
---|
[2232] | 1341 | !-- Ensure that the bulk Richardson number and the Obukhov |
---|
| 1342 | !-- length have the same sign and ensure convergence. |
---|
| 1343 | IF ( surf%ol(m) * ol_m < 0.0_wp ) surf%ol(m) = ol_m * 0.5_wp |
---|
[1691] | 1344 | ! |
---|
[2232] | 1345 | !-- If unrealistic value occurs, set L to the maximum |
---|
| 1346 | !-- value that is allowed |
---|
| 1347 | IF ( ABS( surf%ol(m) ) > ol_max ) THEN |
---|
| 1348 | surf%ol(m) = ol_max |
---|
| 1349 | EXIT |
---|
| 1350 | ENDIF |
---|
[1691] | 1351 | ! |
---|
[2232] | 1352 | !-- Check for convergence |
---|
| 1353 | IF ( ABS( ( surf%ol(m) - ol_m ) / & |
---|
| 1354 | surf%ol(m) ) < 1.0E-4_wp ) THEN |
---|
| 1355 | EXIT |
---|
| 1356 | ELSE |
---|
| 1357 | CYCLE |
---|
| 1358 | ENDIF |
---|
[1691] | 1359 | |
---|
| 1360 | ENDDO |
---|
| 1361 | ENDDO |
---|
| 1362 | |
---|
| 1363 | ELSEIF ( TRIM( most_method ) == 'lookup' ) THEN |
---|
| 1364 | |
---|
[2281] | 1365 | !$OMP PARALLEL DO PRIVATE( i, j, z_mo, li ) FIRSTPRIVATE( li_bnd ) LASTPRIVATE( li_bnd ) |
---|
[2232] | 1366 | DO m = 1, surf%ns |
---|
[1691] | 1367 | |
---|
[2232] | 1368 | i = surf%i(m) |
---|
| 1369 | j = surf%j(m) |
---|
[1691] | 1370 | ! |
---|
[2232] | 1371 | !-- If the bulk Richardson number is outside the range of the lookup |
---|
| 1372 | !-- table, set it to the exceeding threshold value |
---|
| 1373 | IF ( surf%rib(m) < rib_min ) surf%rib(m) = rib_min |
---|
| 1374 | IF ( surf%rib(m) > rib_max ) surf%rib(m) = rib_max |
---|
[1691] | 1375 | |
---|
| 1376 | ! |
---|
[2232] | 1377 | !-- Find the correct index bounds for linear interpolation. As the |
---|
| 1378 | !-- Richardson number will not differ very much from time step to |
---|
| 1379 | !-- time step , use the index from the last step and search in the |
---|
| 1380 | !-- correct direction |
---|
| 1381 | li = li_bnd |
---|
[2321] | 1382 | IF ( rib_tab(li) - surf%rib(m) > 0.0_wp ) THEN |
---|
| 1383 | DO WHILE ( rib_tab(li-1) - surf%rib(m) > 0.0_wp .AND. li > 0 ) |
---|
[2232] | 1384 | li = li-1 |
---|
| 1385 | ENDDO |
---|
| 1386 | ELSE |
---|
| 1387 | DO WHILE ( rib_tab(li) - surf%rib(m) < 0.0_wp & |
---|
| 1388 | .AND. li < num_steps-1 ) |
---|
| 1389 | li = li+1 |
---|
| 1390 | ENDDO |
---|
| 1391 | ENDIF |
---|
| 1392 | li_bnd = li |
---|
[1691] | 1393 | |
---|
| 1394 | ! |
---|
[2232] | 1395 | !-- Linear interpolation to find the correct value of z/L |
---|
| 1396 | surf%ol(m) = ( ol_tab(li-1) + ( ol_tab(li) - ol_tab(li-1) ) & |
---|
| 1397 | / ( rib_tab(li) - rib_tab(li-1) ) & |
---|
| 1398 | * ( surf%rib(m) - rib_tab(li-1) ) ) |
---|
[1691] | 1399 | |
---|
| 1400 | ENDDO |
---|
| 1401 | |
---|
| 1402 | ELSEIF ( TRIM( most_method ) == 'circular' ) THEN |
---|
| 1403 | |
---|
[2232] | 1404 | IF ( .NOT. humidity ) THEN |
---|
| 1405 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1406 | DO m = 1, surf%ns |
---|
[1691] | 1407 | |
---|
[2232] | 1408 | i = surf%i(m) |
---|
| 1409 | j = surf%j(m) |
---|
| 1410 | k = surf%k(m) |
---|
[1691] | 1411 | |
---|
[2232] | 1412 | z_mo = surf%z_mo(m) |
---|
[1691] | 1413 | |
---|
[2232] | 1414 | surf%ol(m) = ( pt(k,j,i) * surf%us(m)**2 ) / & |
---|
| 1415 | ( kappa * g * & |
---|
| 1416 | surf%ts(m) + 1E-30_wp ) |
---|
[1691] | 1417 | ! |
---|
| 1418 | !-- Limit the value range of the Obukhov length. |
---|
[2232] | 1419 | !-- This is necessary for very small velocities (u,v --> 1), because |
---|
[1691] | 1420 | !-- the absolute value of ol can then become very small, which in |
---|
| 1421 | !-- consequence would result in very large shear stresses and very |
---|
| 1422 | !-- small momentum fluxes (both are generally unrealistic). |
---|
[2232] | 1423 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) < zeta_min ) & |
---|
| 1424 | surf%ol(m) = z_mo / zeta_min |
---|
| 1425 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) > zeta_max ) & |
---|
| 1426 | surf%ol(m) = z_mo / zeta_max |
---|
| 1427 | |
---|
[1691] | 1428 | ENDDO |
---|
[2547] | 1429 | ELSEIF ( cloud_physics .OR. cloud_droplets ) THEN |
---|
[2232] | 1430 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1431 | DO m = 1, surf%ns |
---|
[1691] | 1432 | |
---|
[2232] | 1433 | i = surf%i(m) |
---|
| 1434 | j = surf%j(m) |
---|
| 1435 | k = surf%k(m) |
---|
[1691] | 1436 | |
---|
[2232] | 1437 | z_mo = surf%z_mo(m) |
---|
| 1438 | |
---|
| 1439 | |
---|
| 1440 | surf%ol(m) = ( vpt(k,j,i) * surf%us(m)**2 ) / & |
---|
| 1441 | ( kappa * g * ( surf%ts(m) + & |
---|
| 1442 | 0.61_wp * surf%pt1(m) * surf%us(m) & |
---|
| 1443 | + 0.61_wp * surf%qv1(m) * surf%ts(m) - & |
---|
| 1444 | surf%ts(m) * ql(k,j,i) ) + 1E-30_wp ) |
---|
[1691] | 1445 | ! |
---|
[2232] | 1446 | !-- Limit the value range of the Obukhov length. |
---|
| 1447 | !-- This is necessary for very small velocities (u,v --> 1), because |
---|
| 1448 | !-- the absolute value of ol can then become very small, which in |
---|
| 1449 | !-- consequence would result in very large shear stresses and very |
---|
| 1450 | !-- small momentum fluxes (both are generally unrealistic). |
---|
| 1451 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) < zeta_min ) & |
---|
| 1452 | surf%ol(m) = z_mo / zeta_min |
---|
| 1453 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) > zeta_max ) & |
---|
| 1454 | surf%ol(m) = z_mo / zeta_max |
---|
[1691] | 1455 | |
---|
[2232] | 1456 | ENDDO |
---|
| 1457 | ELSE |
---|
| 1458 | |
---|
| 1459 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1460 | DO m = 1, surf%ns |
---|
| 1461 | |
---|
| 1462 | i = surf%i(m) |
---|
| 1463 | j = surf%j(m) |
---|
| 1464 | k = surf%k(m) |
---|
| 1465 | |
---|
| 1466 | z_mo = surf%z_mo(m) |
---|
| 1467 | |
---|
| 1468 | surf%ol(m) = ( vpt(k,j,i) * surf%us(m)**2 ) / & |
---|
| 1469 | ( kappa * g * ( surf%ts(m) + 0.61_wp * pt(k,j,i) * & |
---|
| 1470 | surf%qs(m) + 0.61_wp * q(k,j,i) * & |
---|
| 1471 | surf%ts(m) ) + 1E-30_wp ) |
---|
| 1472 | |
---|
| 1473 | ! |
---|
| 1474 | !-- Limit the value range of the Obukhov length. |
---|
| 1475 | !-- This is necessary for very small velocities (u,v --> 1), because |
---|
| 1476 | !-- the absolute value of ol can then become very small, which in |
---|
| 1477 | !-- consequence would result in very large shear stresses and very |
---|
| 1478 | !-- small momentum fluxes (both are generally unrealistic). |
---|
| 1479 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) < zeta_min ) & |
---|
| 1480 | surf%ol(m) = z_mo / zeta_min |
---|
| 1481 | IF ( ( z_mo / ( surf%ol(m) + 1E-30_wp ) ) > zeta_max ) & |
---|
| 1482 | surf%ol(m) = z_mo / zeta_max |
---|
| 1483 | |
---|
| 1484 | ENDDO |
---|
| 1485 | |
---|
| 1486 | ENDIF |
---|
| 1487 | |
---|
| 1488 | ENDIF |
---|
| 1489 | |
---|
[1691] | 1490 | END SUBROUTINE calc_ol |
---|
| 1491 | |
---|
| 1492 | ! |
---|
| 1493 | !-- Calculate friction velocity u* |
---|
| 1494 | SUBROUTINE calc_us |
---|
| 1495 | |
---|
| 1496 | IMPLICIT NONE |
---|
| 1497 | |
---|
[2232] | 1498 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
[1691] | 1499 | |
---|
[2232] | 1500 | ! |
---|
| 1501 | !-- Compute u* at horizontal surfaces at the scalars' grid points |
---|
| 1502 | IF ( .NOT. surf_vertical ) THEN |
---|
| 1503 | ! |
---|
| 1504 | !-- Compute u* at upward-facing surfaces |
---|
| 1505 | IF ( .NOT. downward ) THEN |
---|
[2281] | 1506 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
[2232] | 1507 | DO m = 1, surf%ns |
---|
[1691] | 1508 | |
---|
[2232] | 1509 | z_mo = surf%z_mo(m) |
---|
[1691] | 1510 | ! |
---|
[2232] | 1511 | !-- Compute u* at the scalars' grid points |
---|
| 1512 | surf%us(m) = kappa * surf%uvw_abs(m) / & |
---|
| 1513 | ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1514 | - psi_m( z_mo / surf%ol(m) ) & |
---|
| 1515 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
| 1516 | |
---|
| 1517 | ENDDO |
---|
| 1518 | ! |
---|
| 1519 | !-- Compute u* at downward-facing surfaces. This case, do not consider |
---|
| 1520 | !-- any stability. |
---|
| 1521 | ELSE |
---|
[2281] | 1522 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
[2232] | 1523 | DO m = 1, surf%ns |
---|
| 1524 | |
---|
| 1525 | z_mo = surf%z_mo(m) |
---|
| 1526 | ! |
---|
| 1527 | !-- Compute u* at the scalars' grid points |
---|
| 1528 | surf%us(m) = kappa * surf%uvw_abs(m) / LOG( z_mo / surf%z0(m) ) |
---|
| 1529 | |
---|
| 1530 | ENDDO |
---|
| 1531 | ENDIF |
---|
| 1532 | ! |
---|
| 1533 | !-- Compute u* at vertical surfaces at the u/v/v grid, respectively. |
---|
| 1534 | !-- No stability is considered in this case. |
---|
| 1535 | ELSE |
---|
| 1536 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
| 1537 | DO m = 1, surf%ns |
---|
| 1538 | z_mo = surf%z_mo(m) |
---|
| 1539 | |
---|
| 1540 | surf%us(m) = kappa * surf%uvw_abs(m) / LOG( z_mo / surf%z0(m) ) |
---|
[1691] | 1541 | ENDDO |
---|
[2232] | 1542 | ENDIF |
---|
[1691] | 1543 | |
---|
| 1544 | END SUBROUTINE calc_us |
---|
| 1545 | |
---|
| 1546 | ! |
---|
| 1547 | !-- Calculate potential temperature and specific humidity at first grid level |
---|
[2232] | 1548 | !-- ( only for upward-facing surfs ) |
---|
[1691] | 1549 | SUBROUTINE calc_pt_q |
---|
| 1550 | |
---|
| 1551 | IMPLICIT NONE |
---|
| 1552 | |
---|
[2232] | 1553 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
| 1554 | |
---|
| 1555 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1556 | DO m = 1, surf%ns |
---|
| 1557 | |
---|
| 1558 | i = surf%i(m) |
---|
| 1559 | j = surf%j(m) |
---|
| 1560 | k = surf%k(m) |
---|
| 1561 | |
---|
[2547] | 1562 | IF ( cloud_physics ) THEN |
---|
| 1563 | surf%pt1(m) = pt(k,j,i) + l_d_cp * pt_d_t(k) * ql(k,j,i) |
---|
| 1564 | surf%qv1(m) = q(k,j,i) - ql(k,j,i) |
---|
| 1565 | ELSEIF( cloud_droplets ) THEN |
---|
| 1566 | surf%pt1(m) = pt(k,j,i) + l_d_cp * pt_d_t(k) * ql(k,j,i) |
---|
| 1567 | surf%qv1(m) = q(k,j,i) |
---|
[2696] | 1568 | ELSE |
---|
| 1569 | surf%pt1(m) = pt(k,j,i) |
---|
| 1570 | IF ( humidity ) THEN |
---|
| 1571 | surf%qv1(m) = q(k,j,i) |
---|
| 1572 | ELSE |
---|
| 1573 | surf%qv1(m) = 0.0_wp |
---|
| 1574 | ENDIF |
---|
[2547] | 1575 | ENDIF |
---|
[2232] | 1576 | |
---|
[1691] | 1577 | ENDDO |
---|
| 1578 | |
---|
| 1579 | END SUBROUTINE calc_pt_q |
---|
| 1580 | |
---|
[2696] | 1581 | |
---|
[1691] | 1582 | ! |
---|
[2696] | 1583 | !-- Calculate potential temperature and specific humidity at first grid level |
---|
| 1584 | !-- ( only for upward-facing surfs ) |
---|
| 1585 | SUBROUTINE calc_pt_surface |
---|
| 1586 | |
---|
| 1587 | IMPLICIT NONE |
---|
| 1588 | |
---|
| 1589 | INTEGER(iwp) :: koff !< index offset between surface and atmosphere grid point (-1 for upward-, +1 for downward-facing walls) |
---|
| 1590 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
| 1591 | |
---|
| 1592 | koff = surf%koff |
---|
| 1593 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1594 | DO m = 1, surf%ns |
---|
| 1595 | |
---|
| 1596 | i = surf%i(m) |
---|
| 1597 | j = surf%j(m) |
---|
| 1598 | k = surf%k(m) |
---|
| 1599 | |
---|
| 1600 | surf%pt_surface(m) = pt(k+koff,j,i) |
---|
| 1601 | |
---|
| 1602 | ENDDO |
---|
| 1603 | |
---|
| 1604 | END SUBROUTINE calc_pt_surface |
---|
| 1605 | |
---|
| 1606 | ! |
---|
[2292] | 1607 | !-- Calculate the other MOST scaling parameters theta*, q*, (qc*, qr*, nc*, nr*) |
---|
[1691] | 1608 | SUBROUTINE calc_scaling_parameters |
---|
| 1609 | |
---|
| 1610 | IMPLICIT NONE |
---|
| 1611 | |
---|
[2232] | 1612 | |
---|
| 1613 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
[2696] | 1614 | INTEGER(iwp) :: lsp !< running index for chemical species |
---|
[1691] | 1615 | ! |
---|
[2232] | 1616 | !-- Compute theta* at horizontal surfaces |
---|
| 1617 | IF ( constant_heatflux .AND. .NOT. surf_vertical ) THEN |
---|
[1691] | 1618 | ! |
---|
| 1619 | !-- For a given heat flux in the surface layer: |
---|
[2232] | 1620 | |
---|
| 1621 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1622 | DO m = 1, surf%ns |
---|
| 1623 | |
---|
| 1624 | i = surf%i(m) |
---|
| 1625 | j = surf%j(m) |
---|
| 1626 | k = surf%k(m) |
---|
| 1627 | |
---|
| 1628 | surf%ts(m) = -surf%shf(m) * drho_air_zw(k-1) / & |
---|
| 1629 | ( surf%us(m) + 1E-30_wp ) |
---|
| 1630 | |
---|
[1691] | 1631 | ! |
---|
[2232] | 1632 | !-- ts must be limited, because otherwise overflow may occur in case |
---|
| 1633 | !-- of us=0 when computing ol further below |
---|
| 1634 | IF ( surf%ts(m) < -1.05E5_wp ) surf%ts(m) = -1.0E5_wp |
---|
| 1635 | IF ( surf%ts(m) > 1.0E5_wp ) surf%ts(m) = 1.0E5_wp |
---|
| 1636 | |
---|
[1691] | 1637 | ENDDO |
---|
| 1638 | |
---|
[2232] | 1639 | ELSEIF ( .NOT. surf_vertical ) THEN |
---|
[1691] | 1640 | ! |
---|
| 1641 | !-- For a given surface temperature: |
---|
[1788] | 1642 | IF ( large_scale_forcing .AND. lsf_surf ) THEN |
---|
[2232] | 1643 | |
---|
| 1644 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1645 | DO m = 1, surf%ns |
---|
| 1646 | i = surf%i(m) |
---|
| 1647 | j = surf%j(m) |
---|
| 1648 | k = surf%k(m) |
---|
| 1649 | |
---|
| 1650 | pt(k-1,j,i) = pt_surface |
---|
[1691] | 1651 | ENDDO |
---|
| 1652 | ENDIF |
---|
| 1653 | |
---|
[2696] | 1654 | !$OMP PARALLEL DO PRIVATE( z_mo ) |
---|
| 1655 | DO m = 1, surf%ns |
---|
[1691] | 1656 | |
---|
[2696] | 1657 | z_mo = surf%z_mo(m) |
---|
[1691] | 1658 | |
---|
[2696] | 1659 | surf%ts(m) = kappa * ( surf%pt1(m) - surf%pt_surface(m) ) & |
---|
| 1660 | / ( LOG( z_mo / surf%z0h(m) ) & |
---|
| 1661 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1662 | + psi_h( surf%z0h(m) / surf%ol(m) ) ) |
---|
[1691] | 1663 | |
---|
[2696] | 1664 | ENDDO |
---|
[2232] | 1665 | |
---|
| 1666 | ENDIF |
---|
| 1667 | ! |
---|
| 1668 | !-- Compute theta* at vertical surfaces. This is only required in case of |
---|
| 1669 | !-- land-surface model, in order to compute aerodynamical resistance. |
---|
| 1670 | IF ( surf_vertical ) THEN |
---|
[2281] | 1671 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 1672 | DO m = 1, surf%ns |
---|
| 1673 | |
---|
| 1674 | i = surf%i(m) |
---|
| 1675 | j = surf%j(m) |
---|
| 1676 | surf%ts(m) = -surf%shf(m) / ( surf%us(m) + 1E-30_wp ) |
---|
| 1677 | ! |
---|
| 1678 | !-- ts must be limited, because otherwise overflow may occur in case |
---|
| 1679 | !-- of us=0 when computing ol further below |
---|
| 1680 | IF ( surf%ts(m) < -1.05E5_wp ) surf%ts(m) = -1.0E5_wp |
---|
| 1681 | IF ( surf%ts(m) > 1.0E5_wp ) surf%ts(m) = 1.0E5_wp |
---|
| 1682 | |
---|
[1691] | 1683 | ENDDO |
---|
| 1684 | ENDIF |
---|
| 1685 | |
---|
| 1686 | ! |
---|
[2232] | 1687 | !-- If required compute q* at horizontal surfaces |
---|
[1960] | 1688 | IF ( humidity ) THEN |
---|
[2232] | 1689 | IF ( constant_waterflux .AND. .NOT. surf_vertical ) THEN |
---|
[1691] | 1690 | ! |
---|
[1788] | 1691 | !-- For a given water flux in the surface layer |
---|
[2232] | 1692 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1693 | DO m = 1, surf%ns |
---|
| 1694 | |
---|
| 1695 | i = surf%i(m) |
---|
| 1696 | j = surf%j(m) |
---|
| 1697 | k = surf%k(m) |
---|
| 1698 | surf%qs(m) = -surf%qsws(m) * drho_air_zw(k-1) / & |
---|
| 1699 | ( surf%us(m) + 1E-30_wp ) |
---|
| 1700 | |
---|
[1691] | 1701 | ENDDO |
---|
| 1702 | |
---|
[2232] | 1703 | ELSEIF ( .NOT. surf_vertical ) THEN |
---|
[1788] | 1704 | coupled_run = ( coupling_mode == 'atmosphere_to_ocean' .AND. & |
---|
[1691] | 1705 | run_coupled ) |
---|
| 1706 | |
---|
[1788] | 1707 | IF ( large_scale_forcing .AND. lsf_surf ) THEN |
---|
[2232] | 1708 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 1709 | DO m = 1, surf%ns |
---|
| 1710 | |
---|
| 1711 | i = surf%i(m) |
---|
| 1712 | j = surf%j(m) |
---|
| 1713 | k = surf%k(m) |
---|
| 1714 | q(k-1,j,i) = q_surface |
---|
| 1715 | |
---|
[1691] | 1716 | ENDDO |
---|
| 1717 | ENDIF |
---|
| 1718 | |
---|
| 1719 | ! |
---|
[2232] | 1720 | !-- Assume saturation for atmosphere coupled to ocean (but not |
---|
| 1721 | !-- in case of precursor runs) |
---|
| 1722 | IF ( coupled_run ) THEN |
---|
| 1723 | !$OMP PARALLEL DO PRIVATE( i, j, k, e_s ) |
---|
| 1724 | DO m = 1, surf%ns |
---|
| 1725 | i = surf%i(m) |
---|
| 1726 | j = surf%j(m) |
---|
| 1727 | k = surf%k(m) |
---|
| 1728 | e_s = 6.1_wp * & |
---|
| 1729 | EXP( 0.07_wp * ( MIN(pt(k-1,j,i),pt(k,j,i)) & |
---|
[1691] | 1730 | - 273.15_wp ) ) |
---|
[2232] | 1731 | q(k-1,j,i) = 0.622_wp * e_s / ( surface_pressure - e_s ) |
---|
| 1732 | ENDDO |
---|
| 1733 | ENDIF |
---|
[1691] | 1734 | |
---|
[2547] | 1735 | IF ( cloud_physics .OR. cloud_droplets ) THEN |
---|
[2232] | 1736 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1737 | DO m = 1, surf%ns |
---|
[1691] | 1738 | |
---|
[2232] | 1739 | i = surf%i(m) |
---|
| 1740 | j = surf%j(m) |
---|
| 1741 | k = surf%k(m) |
---|
| 1742 | |
---|
| 1743 | z_mo = surf%z_mo(m) |
---|
[1691] | 1744 | |
---|
[2232] | 1745 | surf%qs(m) = kappa * ( surf%qv1(m) - q(k-1,j,i) ) & |
---|
| 1746 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1747 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1748 | + psi_h( surf%z0q(m) / & |
---|
| 1749 | surf%ol(m) ) ) |
---|
[1691] | 1750 | ENDDO |
---|
[2232] | 1751 | ELSE |
---|
| 1752 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1753 | DO m = 1, surf%ns |
---|
| 1754 | |
---|
| 1755 | i = surf%i(m) |
---|
| 1756 | j = surf%j(m) |
---|
| 1757 | k = surf%k(m) |
---|
| 1758 | |
---|
| 1759 | z_mo = surf%z_mo(m) |
---|
| 1760 | |
---|
| 1761 | surf%qs(m) = kappa * ( q(k,j,i) - q(k-1,j,i) ) & |
---|
| 1762 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1763 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1764 | + psi_h( surf%z0q(m) / & |
---|
| 1765 | surf%ol(m) ) ) |
---|
| 1766 | ENDDO |
---|
| 1767 | ENDIF |
---|
| 1768 | ENDIF |
---|
| 1769 | ! |
---|
| 1770 | !-- Compute q* at vertical surfaces |
---|
| 1771 | IF ( surf_vertical ) THEN |
---|
[2281] | 1772 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 1773 | DO m = 1, surf%ns |
---|
| 1774 | |
---|
| 1775 | i = surf%i(m) |
---|
| 1776 | j = surf%j(m) |
---|
| 1777 | surf%qs(m) = -surf%qsws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
| 1778 | |
---|
[1691] | 1779 | ENDDO |
---|
| 1780 | ENDIF |
---|
| 1781 | ENDIF |
---|
[1960] | 1782 | |
---|
| 1783 | ! |
---|
| 1784 | !-- If required compute s* |
---|
| 1785 | IF ( passive_scalar ) THEN |
---|
| 1786 | ! |
---|
[2232] | 1787 | !-- At horizontal surfaces |
---|
| 1788 | IF ( constant_scalarflux .AND. .NOT. surf_vertical ) THEN |
---|
| 1789 | ! |
---|
| 1790 | !-- For a given scalar flux in the surface layer |
---|
[2281] | 1791 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 1792 | DO m = 1, surf%ns |
---|
| 1793 | i = surf%i(m) |
---|
| 1794 | j = surf%j(m) |
---|
| 1795 | surf%ss(m) = -surf%ssws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
[1960] | 1796 | ENDDO |
---|
| 1797 | ENDIF |
---|
[2232] | 1798 | ! |
---|
| 1799 | !-- At vertical surfaces |
---|
| 1800 | IF ( surf_vertical ) THEN |
---|
[2281] | 1801 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 1802 | DO m = 1, surf%ns |
---|
| 1803 | i = surf%i(m) |
---|
| 1804 | j = surf%j(m) |
---|
| 1805 | surf%ss(m) = -surf%ssws(m) / ( surf%us(m) + 1E-30_wp ) |
---|
| 1806 | ENDDO |
---|
| 1807 | ENDIF |
---|
[1960] | 1808 | ENDIF |
---|
[1691] | 1809 | |
---|
[2292] | 1810 | ! |
---|
[2696] | 1811 | !-- If required compute cs* (chemical species) |
---|
| 1812 | #if defined( __chem ) |
---|
| 1813 | IF ( air_chemistry ) THEN |
---|
| 1814 | ! |
---|
| 1815 | !-- At horizontal surfaces |
---|
| 1816 | DO lsp = 1, nvar |
---|
| 1817 | IF ( constant_csflux(lsp) .AND. .NOT. surf_vertical ) THEN |
---|
| 1818 | !-- For a given chemical species' flux in the surface layer |
---|
| 1819 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
| 1820 | DO m = 1, surf%ns |
---|
| 1821 | i = surf%i(m) |
---|
| 1822 | j = surf%j(m) |
---|
| 1823 | surf%css(lsp,m) = -surf%cssws(lsp,m) / ( surf%us(m) + 1E-30_wp ) |
---|
| 1824 | ENDDO |
---|
| 1825 | ENDIF |
---|
| 1826 | ENDDO |
---|
| 1827 | ! |
---|
| 1828 | !-- At vertical surfaces |
---|
| 1829 | IF ( surf_vertical ) THEN |
---|
| 1830 | DO lsp = 1, nvar |
---|
| 1831 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
| 1832 | DO m = 1, surf%ns |
---|
| 1833 | i = surf%i(m) |
---|
| 1834 | j = surf%j(m) |
---|
| 1835 | surf%css(lsp,m) = -surf%cssws(lsp,m) / ( surf%us(m) + 1E-30_wp ) |
---|
| 1836 | ENDDO |
---|
| 1837 | ENDDO |
---|
| 1838 | ENDIF |
---|
| 1839 | ENDIF |
---|
| 1840 | #endif |
---|
| 1841 | |
---|
| 1842 | ! |
---|
[2292] | 1843 | !-- If required compute qc* and nc* |
---|
| 1844 | IF ( cloud_physics .AND. microphysics_morrison .AND. & |
---|
| 1845 | .NOT. surf_vertical ) THEN |
---|
| 1846 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1847 | DO m = 1, surf%ns |
---|
[1691] | 1848 | |
---|
[2292] | 1849 | i = surf%i(m) |
---|
| 1850 | j = surf%j(m) |
---|
| 1851 | k = surf%k(m) |
---|
| 1852 | |
---|
| 1853 | z_mo = surf%z_mo(m) |
---|
| 1854 | |
---|
| 1855 | surf%qcs(m) = kappa * ( qc(k,j,i) - qc(k-1,j,i) ) & |
---|
| 1856 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1857 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1858 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
| 1859 | |
---|
| 1860 | surf%ncs(m) = kappa * ( nc(k,j,i) - nc(k-1,j,i) ) & |
---|
| 1861 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1862 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1863 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
| 1864 | ENDDO |
---|
| 1865 | |
---|
| 1866 | ENDIF |
---|
| 1867 | |
---|
[1691] | 1868 | ! |
---|
| 1869 | !-- If required compute qr* and nr* |
---|
[2232] | 1870 | IF ( cloud_physics .AND. microphysics_seifert .AND. & |
---|
| 1871 | .NOT. surf_vertical ) THEN |
---|
| 1872 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1873 | DO m = 1, surf%ns |
---|
[1691] | 1874 | |
---|
[2232] | 1875 | i = surf%i(m) |
---|
| 1876 | j = surf%j(m) |
---|
| 1877 | k = surf%k(m) |
---|
[1691] | 1878 | |
---|
[2232] | 1879 | z_mo = surf%z_mo(m) |
---|
[1691] | 1880 | |
---|
[2232] | 1881 | surf%qrs(m) = kappa * ( qr(k,j,i) - qr(k-1,j,i) ) & |
---|
| 1882 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1883 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1884 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
[1691] | 1885 | |
---|
[2232] | 1886 | surf%nrs(m) = kappa * ( nr(k,j,i) - nr(k-1,j,i) ) & |
---|
| 1887 | / ( LOG( z_mo / surf%z0q(m) ) & |
---|
| 1888 | - psi_h( z_mo / surf%ol(m) ) & |
---|
| 1889 | + psi_h( surf%z0q(m) / surf%ol(m) ) ) |
---|
[1691] | 1890 | ENDDO |
---|
| 1891 | |
---|
| 1892 | ENDIF |
---|
| 1893 | |
---|
| 1894 | END SUBROUTINE calc_scaling_parameters |
---|
| 1895 | |
---|
| 1896 | |
---|
| 1897 | |
---|
| 1898 | ! |
---|
[2292] | 1899 | !-- Calculate surface fluxes usws, vsws, shf, qsws, (qcsws, qrsws, ncsws, nrsws) |
---|
[1691] | 1900 | SUBROUTINE calc_surface_fluxes |
---|
| 1901 | |
---|
| 1902 | IMPLICIT NONE |
---|
| 1903 | |
---|
[2696] | 1904 | INTEGER(iwp) :: m !< loop variable over all horizontal surf elements |
---|
| 1905 | INTEGER(iwp) :: lsp !< running index for chemical species |
---|
[1691] | 1906 | |
---|
[2232] | 1907 | REAL(wp) :: dum !< dummy to precalculate logarithm |
---|
| 1908 | REAL(wp) :: flag_u !< flag indicating u-grid, used for calculation of horizontal momentum fluxes at vertical surfaces |
---|
| 1909 | REAL(wp) :: flag_v !< flag indicating v-grid, used for calculation of horizontal momentum fluxes at vertical surfaces |
---|
| 1910 | REAL(wp), DIMENSION(:), ALLOCATABLE :: u_i !< u-component interpolated onto scalar grid point, required for momentum fluxes at vertical surfaces |
---|
| 1911 | REAL(wp), DIMENSION(:), ALLOCATABLE :: v_i !< v-component interpolated onto scalar grid point, required for momentum fluxes at vertical surfaces |
---|
| 1912 | REAL(wp), DIMENSION(:), ALLOCATABLE :: w_i !< w-component interpolated onto scalar grid point, required for momentum fluxes at vertical surfaces |
---|
[1691] | 1913 | |
---|
| 1914 | ! |
---|
[2232] | 1915 | !-- Calcuate surface fluxes at horizontal walls |
---|
| 1916 | IF ( .NOT. surf_vertical ) THEN |
---|
| 1917 | ! |
---|
| 1918 | !-- Compute u'w' for the total model domain at upward-facing surfaces. |
---|
| 1919 | !-- First compute the corresponding component of u* and square it. |
---|
| 1920 | IF ( .NOT. downward ) THEN |
---|
| 1921 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1922 | DO m = 1, surf%ns |
---|
| 1923 | |
---|
| 1924 | i = surf%i(m) |
---|
| 1925 | j = surf%j(m) |
---|
| 1926 | k = surf%k(m) |
---|
[1691] | 1927 | |
---|
[2232] | 1928 | z_mo = surf%z_mo(m) |
---|
[1691] | 1929 | |
---|
[2232] | 1930 | surf%usws(m) = kappa * ( u(k,j,i) - u(k-1,j,i) ) & |
---|
| 1931 | / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1932 | - psi_m( z_mo / surf%ol(m) ) & |
---|
| 1933 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
| 1934 | ! |
---|
| 1935 | !-- Please note, the computation of usws is not fully accurate. Actually |
---|
| 1936 | !-- a further interpolation of us onto the u-grid, where usws is defined, |
---|
| 1937 | !-- is required. However, this is not done as this would require several |
---|
| 1938 | !-- data transfers between 2D-grid and the surf-type. |
---|
| 1939 | !-- The impact of the missing interpolation is negligible as several |
---|
| 1940 | !-- tests had shown. |
---|
| 1941 | !-- Same also for ol. |
---|
| 1942 | surf%usws(m) = -surf%usws(m) * surf%us(m) * rho_air_zw(k-1) |
---|
[1691] | 1943 | |
---|
[2232] | 1944 | ENDDO |
---|
[1691] | 1945 | ! |
---|
[2232] | 1946 | !-- At downward-facing surfaces |
---|
| 1947 | ELSE |
---|
| 1948 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1949 | DO m = 1, surf%ns |
---|
| 1950 | |
---|
| 1951 | i = surf%i(m) |
---|
| 1952 | j = surf%j(m) |
---|
| 1953 | k = surf%k(m) |
---|
[1691] | 1954 | |
---|
[2232] | 1955 | z_mo = surf%z_mo(m) |
---|
| 1956 | |
---|
| 1957 | surf%usws(m) = kappa * u(k,j,i) / LOG( z_mo / surf%z0(m) ) |
---|
| 1958 | surf%usws(m) = surf%usws(m) * surf%us(m) * rho_air_zw(k) |
---|
[1691] | 1959 | |
---|
[2232] | 1960 | ENDDO |
---|
| 1961 | ENDIF |
---|
[1691] | 1962 | |
---|
[2232] | 1963 | ! |
---|
| 1964 | !-- Compute v'w' for the total model domain. |
---|
| 1965 | !-- First compute the corresponding component of u* and square it. |
---|
| 1966 | !-- Upward-facing surfaces |
---|
| 1967 | IF ( .NOT. downward ) THEN |
---|
| 1968 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1969 | DO m = 1, surf%ns |
---|
| 1970 | i = surf%i(m) |
---|
| 1971 | j = surf%j(m) |
---|
| 1972 | k = surf%k(m) |
---|
[1691] | 1973 | |
---|
[2232] | 1974 | z_mo = surf%z_mo(m) |
---|
[1691] | 1975 | |
---|
[2232] | 1976 | surf%vsws(m) = kappa * ( v(k,j,i) - v(k-1,j,i) ) & |
---|
| 1977 | / ( LOG( z_mo / surf%z0(m) ) & |
---|
| 1978 | - psi_m( z_mo / surf%ol(m) ) & |
---|
| 1979 | + psi_m( surf%z0(m) / surf%ol(m) ) ) |
---|
[1691] | 1980 | ! |
---|
[2232] | 1981 | !-- Please note, the computation of vsws is not fully accurate. Actually |
---|
| 1982 | !-- a further interpolation of us onto the v-grid, where vsws is defined, |
---|
| 1983 | !-- is required. However, this is not done as this would require several |
---|
| 1984 | !-- data transfers between 2D-grid and the surf-type. |
---|
| 1985 | !-- The impact of the missing interpolation is negligible as several |
---|
| 1986 | !-- tests had shown. |
---|
| 1987 | !-- Same also for ol. |
---|
| 1988 | surf%vsws(m) = -surf%vsws(m) * surf%us(m) * rho_air_zw(k-1) |
---|
| 1989 | ENDDO |
---|
| 1990 | ! |
---|
| 1991 | !-- Downward-facing surfaces |
---|
| 1992 | ELSE |
---|
| 1993 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 1994 | DO m = 1, surf%ns |
---|
| 1995 | i = surf%i(m) |
---|
| 1996 | j = surf%j(m) |
---|
| 1997 | k = surf%k(m) |
---|
[1691] | 1998 | |
---|
[2232] | 1999 | z_mo = surf%z_mo(m) |
---|
| 2000 | |
---|
| 2001 | surf%vsws(m) = kappa * v(k,j,i) / LOG( z_mo / surf%z0(m) ) |
---|
| 2002 | surf%vsws(m) = surf%vsws(m) * surf%us(m) * rho_air_zw(k) |
---|
| 2003 | ENDDO |
---|
| 2004 | ENDIF |
---|
[1691] | 2005 | ! |
---|
[2232] | 2006 | !-- Compute the vertical kinematic heat flux |
---|
[2299] | 2007 | IF ( .NOT. constant_heatflux .AND. ( ( time_since_reference_point& |
---|
| 2008 | <= skip_time_do_lsm .AND. simulated_time > 0.0_wp ) .OR. & |
---|
[2696] | 2009 | .NOT. land_surface ) .AND. .NOT. urban_surface .AND. & |
---|
[2299] | 2010 | .NOT. downward ) THEN |
---|
[2232] | 2011 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 2012 | DO m = 1, surf%ns |
---|
| 2013 | i = surf%i(m) |
---|
| 2014 | j = surf%j(m) |
---|
| 2015 | k = surf%k(m) |
---|
| 2016 | surf%shf(m) = -surf%ts(m) * surf%us(m) * rho_air_zw(k-1) |
---|
[1691] | 2017 | ENDDO |
---|
[2232] | 2018 | ENDIF |
---|
| 2019 | ! |
---|
| 2020 | !-- Compute the vertical water flux |
---|
| 2021 | IF ( .NOT. constant_waterflux .AND. humidity .AND. & |
---|
[2299] | 2022 | ( ( time_since_reference_point <= skip_time_do_lsm .AND. & |
---|
[2696] | 2023 | simulated_time > 0.0_wp ) .OR. .NOT. land_surface ) .AND. & |
---|
| 2024 | .NOT. urban_surface .AND. .NOT. downward ) THEN |
---|
[2232] | 2025 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 2026 | DO m = 1, surf%ns |
---|
| 2027 | i = surf%i(m) |
---|
| 2028 | j = surf%j(m) |
---|
| 2029 | k = surf%k(m) |
---|
| 2030 | surf%qsws(m) = -surf%qs(m) * surf%us(m) * rho_air_zw(k-1) |
---|
| 2031 | ENDDO |
---|
| 2032 | ENDIF |
---|
| 2033 | ! |
---|
| 2034 | !-- Compute the vertical scalar flux |
---|
| 2035 | IF ( .NOT. constant_scalarflux .AND. passive_scalar .AND. & |
---|
| 2036 | .NOT. downward ) THEN |
---|
[2281] | 2037 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 2038 | DO m = 1, surf%ns |
---|
[1691] | 2039 | |
---|
[2232] | 2040 | i = surf%i(m) |
---|
| 2041 | j = surf%j(m) |
---|
| 2042 | surf%ssws(m) = -surf%ss(m) * surf%us(m) |
---|
[1691] | 2043 | |
---|
[2232] | 2044 | ENDDO |
---|
[2292] | 2045 | ENDIF |
---|
[1691] | 2046 | ! |
---|
[2696] | 2047 | !-- Compute the vertical chemical species' flux |
---|
| 2048 | #if defined( __chem ) |
---|
| 2049 | DO lsp = 1, nvar |
---|
| 2050 | IF ( .NOT. constant_csflux(lsp) .AND. air_chemistry .AND. & |
---|
| 2051 | .NOT. downward ) THEN |
---|
| 2052 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
| 2053 | DO m = 1, surf%ns |
---|
| 2054 | i = surf%i(m) |
---|
| 2055 | j = surf%j(m) |
---|
| 2056 | surf%cssws(lsp,m) = -surf%css(lsp,m) * surf%us(m) |
---|
| 2057 | ENDDO |
---|
| 2058 | ENDIF |
---|
| 2059 | ENDDO |
---|
| 2060 | #endif |
---|
| 2061 | |
---|
| 2062 | ! |
---|
[2292] | 2063 | !-- Compute (turbulent) fluxes of cloud water content and cloud drop conc. |
---|
| 2064 | IF ( cloud_physics .AND. microphysics_morrison .AND. & |
---|
| 2065 | .NOT. downward) THEN |
---|
| 2066 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
| 2067 | DO m = 1, surf%ns |
---|
| 2068 | |
---|
| 2069 | i = surf%i(m) |
---|
| 2070 | j = surf%j(m) |
---|
| 2071 | |
---|
| 2072 | surf%qcsws(m) = -surf%qcs(m) * surf%us(m) |
---|
| 2073 | surf%ncsws(m) = -surf%ncs(m) * surf%us(m) |
---|
| 2074 | ENDDO |
---|
| 2075 | ENDIF |
---|
| 2076 | ! |
---|
[2232] | 2077 | !-- Compute (turbulent) fluxes of rain water content and rain drop conc. |
---|
[2292] | 2078 | IF ( cloud_physics .AND. microphysics_seifert .AND. & |
---|
[2232] | 2079 | .NOT. downward) THEN |
---|
[2281] | 2080 | !$OMP PARALLEL DO PRIVATE( i, j ) |
---|
[2232] | 2081 | DO m = 1, surf%ns |
---|
| 2082 | |
---|
| 2083 | i = surf%i(m) |
---|
| 2084 | j = surf%j(m) |
---|
| 2085 | |
---|
| 2086 | surf%qrsws(m) = -surf%qrs(m) * surf%us(m) |
---|
| 2087 | surf%nrsws(m) = -surf%nrs(m) * surf%us(m) |
---|
[1691] | 2088 | ENDDO |
---|
[2232] | 2089 | ENDIF |
---|
[1691] | 2090 | |
---|
[1960] | 2091 | ! |
---|
[2232] | 2092 | !-- Bottom boundary condition for the TKE. |
---|
| 2093 | IF ( ibc_e_b == 2 ) THEN |
---|
| 2094 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 2095 | DO m = 1, surf%ns |
---|
| 2096 | |
---|
| 2097 | i = surf%i(m) |
---|
| 2098 | j = surf%j(m) |
---|
| 2099 | k = surf%k(m) |
---|
| 2100 | |
---|
| 2101 | e(k,j,i) = ( surf%us(m) / 0.1_wp )**2 |
---|
| 2102 | ! |
---|
| 2103 | !-- As a test: cm = 0.4 |
---|
| 2104 | ! e(k,j,i) = ( us(j,i) / 0.4_wp )**2 |
---|
| 2105 | e(k-1,j,i) = e(k,j,i) |
---|
| 2106 | |
---|
[1960] | 2107 | ENDDO |
---|
[2232] | 2108 | ENDIF |
---|
| 2109 | ! |
---|
| 2110 | !-- Calcuate surface fluxes at vertical surfaces. No stability is considered. |
---|
| 2111 | ELSE |
---|
| 2112 | ! |
---|
| 2113 | !-- Compute usvs l={0,1} and vsus l={2,3} |
---|
| 2114 | IF ( mom_uv ) THEN |
---|
| 2115 | ! |
---|
| 2116 | !-- Generalize computation by introducing flags. At north- and south- |
---|
| 2117 | !-- facing surfaces u-component is used, at east- and west-facing |
---|
| 2118 | !-- surfaces v-component is used. |
---|
| 2119 | flag_u = MERGE( 1.0_wp, 0.0_wp, l == 0 .OR. l == 1 ) |
---|
| 2120 | flag_v = MERGE( 1.0_wp, 0.0_wp, l == 2 .OR. l == 3 ) |
---|
| 2121 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 2122 | DO m = 1, surf%ns |
---|
| 2123 | i = surf%i(m) |
---|
| 2124 | j = surf%j(m) |
---|
| 2125 | k = surf%k(m) |
---|
[1691] | 2126 | |
---|
[2232] | 2127 | z_mo = surf%z_mo(m) |
---|
[1960] | 2128 | |
---|
[2232] | 2129 | surf%mom_flux_uv(m) = kappa * & |
---|
| 2130 | ( flag_u * u(k,j,i) + flag_v * v(k,j,i) ) / & |
---|
| 2131 | LOG( z_mo / surf%z0(m) ) |
---|
| 2132 | |
---|
| 2133 | surf%mom_flux_uv(m) = & |
---|
| 2134 | - surf%mom_flux_uv(m) * surf%us(m) |
---|
| 2135 | ENDDO |
---|
| 2136 | ENDIF |
---|
[1691] | 2137 | ! |
---|
[2232] | 2138 | !-- Compute wsus l={0,1} and wsvs l={2,3} |
---|
| 2139 | IF ( mom_w ) THEN |
---|
| 2140 | !$OMP PARALLEL DO PRIVATE( i, j, k, z_mo ) |
---|
| 2141 | DO m = 1, surf%ns |
---|
| 2142 | i = surf%i(m) |
---|
| 2143 | j = surf%j(m) |
---|
| 2144 | k = surf%k(m) |
---|
| 2145 | |
---|
| 2146 | z_mo = surf%z_mo(m) |
---|
| 2147 | |
---|
| 2148 | surf%mom_flux_w(m) = kappa * w(k,j,i) / LOG( z_mo / surf%z0(m) ) |
---|
| 2149 | |
---|
| 2150 | surf%mom_flux_w(m) = & |
---|
| 2151 | - surf%mom_flux_w(m) * surf%us(m) |
---|
[1691] | 2152 | ENDDO |
---|
[2232] | 2153 | ENDIF |
---|
| 2154 | ! |
---|
| 2155 | !-- Compute momentum fluxes used for subgrid-scale TKE production at |
---|
| 2156 | !-- vertical surfaces. In constrast to the calculated momentum fluxes at |
---|
| 2157 | !-- vertical surfaces before, which are defined on the u/v/w-grid, |
---|
| 2158 | !-- respectively), the TKE fluxes are defined at the scalar grid. |
---|
| 2159 | !-- |
---|
| 2160 | IF ( mom_tke ) THEN |
---|
| 2161 | ! |
---|
| 2162 | !-- Precalculate velocity components at scalar grid point. |
---|
| 2163 | ALLOCATE( u_i(1:surf%ns) ) |
---|
| 2164 | ALLOCATE( v_i(1:surf%ns) ) |
---|
| 2165 | ALLOCATE( w_i(1:surf%ns) ) |
---|
[1691] | 2166 | |
---|
[2232] | 2167 | IF ( l == 0 .OR. l == 1 ) THEN |
---|
| 2168 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 2169 | DO m = 1, surf%ns |
---|
| 2170 | i = surf%i(m) |
---|
| 2171 | j = surf%j(m) |
---|
| 2172 | k = surf%k(m) |
---|
| 2173 | |
---|
| 2174 | u_i(m) = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) |
---|
| 2175 | v_i(m) = 0.0_wp |
---|
| 2176 | w_i(m) = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
| 2177 | ENDDO |
---|
| 2178 | ELSE |
---|
| 2179 | !$OMP PARALLEL DO PRIVATE( i, j, k ) |
---|
| 2180 | DO m = 1, surf%ns |
---|
| 2181 | i = surf%i(m) |
---|
| 2182 | j = surf%j(m) |
---|
| 2183 | k = surf%k(m) |
---|
| 2184 | |
---|
| 2185 | u_i(m) = 0.0_wp |
---|
| 2186 | v_i(m) = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) |
---|
| 2187 | w_i(m) = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) |
---|
| 2188 | ENDDO |
---|
| 2189 | ENDIF |
---|
| 2190 | |
---|
[2281] | 2191 | !$OMP PARALLEL DO PRIVATE( i, j, dum, z_mo ) |
---|
[2232] | 2192 | DO m = 1, surf%ns |
---|
| 2193 | i = surf%i(m) |
---|
| 2194 | j = surf%j(m) |
---|
| 2195 | |
---|
| 2196 | z_mo = surf%z_mo(m) |
---|
| 2197 | |
---|
| 2198 | dum = kappa / LOG( z_mo / surf%z0(m) ) |
---|
[1691] | 2199 | ! |
---|
[2232] | 2200 | !-- usvs (l=0,1) and vsus (l=2,3) |
---|
| 2201 | surf%mom_flux_tke(0,m) = dum * ( u_i(m) + v_i(m) ) |
---|
[1691] | 2202 | ! |
---|
[2232] | 2203 | !-- wsvs (l=0,1) and wsus (l=2,3) |
---|
| 2204 | surf%mom_flux_tke(1,m) = dum * w_i(m) |
---|
| 2205 | |
---|
| 2206 | surf%mom_flux_tke(0:1,m) = & |
---|
| 2207 | - surf%mom_flux_tke(0:1,m) * surf%us(m) |
---|
[1691] | 2208 | ENDDO |
---|
[2232] | 2209 | ! |
---|
| 2210 | !-- Deallocate temporary arrays |
---|
| 2211 | DEALLOCATE( u_i ) |
---|
| 2212 | DEALLOCATE( v_i ) |
---|
| 2213 | DEALLOCATE( w_i ) |
---|
| 2214 | ENDIF |
---|
[1691] | 2215 | ENDIF |
---|
| 2216 | |
---|
| 2217 | END SUBROUTINE calc_surface_fluxes |
---|
| 2218 | |
---|
| 2219 | |
---|
| 2220 | ! |
---|
| 2221 | !-- Integrated stability function for momentum |
---|
| 2222 | FUNCTION psi_m( zeta ) |
---|
| 2223 | |
---|
| 2224 | USE kinds |
---|
| 2225 | |
---|
| 2226 | IMPLICIT NONE |
---|
| 2227 | |
---|
| 2228 | REAL(wp) :: psi_m !< Integrated similarity function result |
---|
| 2229 | REAL(wp) :: zeta !< Stability parameter z/L |
---|
| 2230 | REAL(wp) :: x !< dummy variable |
---|
| 2231 | |
---|
| 2232 | REAL(wp), PARAMETER :: a = 1.0_wp !< constant |
---|
| 2233 | REAL(wp), PARAMETER :: b = 0.66666666666_wp !< constant |
---|
| 2234 | REAL(wp), PARAMETER :: c = 5.0_wp !< constant |
---|
| 2235 | REAL(wp), PARAMETER :: d = 0.35_wp !< constant |
---|
| 2236 | REAL(wp), PARAMETER :: c_d_d = c / d !< constant |
---|
| 2237 | REAL(wp), PARAMETER :: bc_d_d = b * c / d !< constant |
---|
| 2238 | |
---|
| 2239 | |
---|
| 2240 | IF ( zeta < 0.0_wp ) THEN |
---|
[1788] | 2241 | x = SQRT( SQRT( 1.0_wp - 16.0_wp * zeta ) ) |
---|
[1691] | 2242 | psi_m = pi * 0.5_wp - 2.0_wp * ATAN( x ) + LOG( ( 1.0_wp + x )**2 & |
---|
| 2243 | * ( 1.0_wp + x**2 ) * 0.125_wp ) |
---|
| 2244 | ELSE |
---|
| 2245 | |
---|
| 2246 | psi_m = - b * ( zeta - c_d_d ) * EXP( -d * zeta ) - a * zeta & |
---|
| 2247 | - bc_d_d |
---|
| 2248 | ! |
---|
| 2249 | !-- Old version for stable conditions (only valid for z/L < 0.5) |
---|
| 2250 | !-- psi_m = - 5.0_wp * zeta |
---|
| 2251 | |
---|
| 2252 | ENDIF |
---|
| 2253 | |
---|
| 2254 | END FUNCTION psi_m |
---|
| 2255 | |
---|
| 2256 | |
---|
| 2257 | ! |
---|
| 2258 | !-- Integrated stability function for heat and moisture |
---|
| 2259 | FUNCTION psi_h( zeta ) |
---|
| 2260 | |
---|
| 2261 | USE kinds |
---|
| 2262 | |
---|
| 2263 | IMPLICIT NONE |
---|
| 2264 | |
---|
| 2265 | REAL(wp) :: psi_h !< Integrated similarity function result |
---|
| 2266 | REAL(wp) :: zeta !< Stability parameter z/L |
---|
| 2267 | REAL(wp) :: x !< dummy variable |
---|
| 2268 | |
---|
| 2269 | REAL(wp), PARAMETER :: a = 1.0_wp !< constant |
---|
| 2270 | REAL(wp), PARAMETER :: b = 0.66666666666_wp !< constant |
---|
| 2271 | REAL(wp), PARAMETER :: c = 5.0_wp !< constant |
---|
| 2272 | REAL(wp), PARAMETER :: d = 0.35_wp !< constant |
---|
| 2273 | REAL(wp), PARAMETER :: c_d_d = c / d !< constant |
---|
| 2274 | REAL(wp), PARAMETER :: bc_d_d = b * c / d !< constant |
---|
| 2275 | |
---|
| 2276 | |
---|
| 2277 | IF ( zeta < 0.0_wp ) THEN |
---|
[1788] | 2278 | x = SQRT( 1.0_wp - 16.0_wp * zeta ) |
---|
[1691] | 2279 | psi_h = 2.0_wp * LOG( (1.0_wp + x ) / 2.0_wp ) |
---|
| 2280 | ELSE |
---|
| 2281 | psi_h = - b * ( zeta - c_d_d ) * EXP( -d * zeta ) - (1.0_wp & |
---|
| 2282 | + 0.66666666666_wp * a * zeta )**1.5_wp - bc_d_d & |
---|
| 2283 | + 1.0_wp |
---|
| 2284 | ! |
---|
| 2285 | !-- Old version for stable conditions (only valid for z/L < 0.5) |
---|
| 2286 | !-- psi_h = - 5.0_wp * zeta |
---|
| 2287 | ENDIF |
---|
| 2288 | |
---|
| 2289 | END FUNCTION psi_h |
---|
| 2290 | |
---|
[1697] | 2291 | END MODULE surface_layer_fluxes_mod |
---|