[1850] | 1 | !> @file subsidence_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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[1036] | 4 | ! |
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[2000] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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| 6 | ! terms of the GNU General Public License as published by the Free Software |
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| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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| 8 | ! version. |
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[1036] | 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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[2718] | 17 | ! Copyright 1997-2018 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[411] | 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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[1683] | 22 | ! |
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[2233] | 23 | ! |
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[1383] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: subsidence_mod.f90 3302 2018-10-03 02:39:40Z gronemeier $ |
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[3302] | 27 | ! small message change |
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| 28 | ! |
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| 29 | ! 3294 2018-10-01 02:37:10Z raasch |
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[3294] | 30 | ! ocean renamed ocean_mode |
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| 31 | ! |
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| 32 | ! 3045 2018-05-28 07:55:41Z Giersch |
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[3045] | 33 | ! Error message revised |
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| 34 | ! |
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| 35 | ! 2718 2018-01-02 08:49:38Z maronga |
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[2716] | 36 | ! Corrected "Former revisions" section |
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| 37 | ! |
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| 38 | ! 2696 2017-12-14 17:12:51Z kanani |
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| 39 | ! Change in file header (GPL part) |
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[1383] | 40 | ! |
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[2716] | 41 | ! 2233 2017-05-30 18:08:54Z suehring |
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| 42 | ! |
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[2233] | 43 | ! 2232 2017-05-30 17:47:52Z suehring |
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| 44 | ! Adjustments to new topography and surface concept |
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| 45 | ! |
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[2001] | 46 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 47 | ! Forced header and separation lines into 80 columns |
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| 48 | ! |
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[1863] | 49 | ! 1862 2016-04-14 09:07:42Z hoffmann |
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| 50 | ! Bugfix: In case of vector machine optimized model runs, sums_ls_l should not |
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| 51 | ! be addressed if large_scale_forcing is false because sums_ls_l is not |
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| 52 | ! allocated. |
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| 53 | ! |
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[1851] | 54 | ! 1850 2016-04-08 13:29:27Z maronga |
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| 55 | ! Module renamed |
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| 56 | ! |
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[1730] | 57 | ! 1729 2015-11-20 11:01:48Z gronemeier |
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| 58 | ! Bugfix: shifting of initial profiles only once each time step |
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| 59 | ! |
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[1683] | 60 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 61 | ! Code annotations made doxygen readable |
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| 62 | ! |
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[1490] | 63 | ! 1489 2014-10-30 08:09:12Z raasch |
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| 64 | ! bugfix: sums_ls_l can only be used if large_scale_forcing is switched on |
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| 65 | ! |
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[1383] | 66 | ! 1382 2014-04-30 12:15:41Z boeske |
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[1382] | 67 | ! Changed the weighting factor that is used in the summation of subsidence |
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| 68 | ! tendencies for profile data output from weight_pres to weight_substep |
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| 69 | ! added Neumann boundary conditions for profile data output of subsidence terms |
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| 70 | ! at nzt+1 |
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[1321] | 71 | ! |
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[1381] | 72 | ! 1380 2014-04-28 12:40:45Z heinze |
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| 73 | ! Shifting only necessary in case of scalar Rayleigh damping |
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| 74 | ! |
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[1366] | 75 | ! 1365 2014-04-22 15:03:56Z boeske |
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| 76 | ! Summation of subsidence tendencies for data output added |
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| 77 | ! +ls_index, sums_ls_l, tmp_tend |
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| 78 | ! |
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[1354] | 79 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 80 | ! REAL constants provided with KIND-attribute |
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| 81 | ! |
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[1321] | 82 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 83 | ! ONLY-attribute added to USE-statements, |
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| 84 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 85 | ! kinds are defined in new module kinds, |
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| 86 | ! old module precision_kind is removed, |
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| 87 | ! revision history before 2012 removed, |
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| 88 | ! comment fields (!:) to be used for variable explanations added to |
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| 89 | ! all variable declaration statements |
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[411] | 90 | ! |
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[1037] | 91 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 92 | ! code put under GPL (PALM 3.9) |
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| 93 | ! |
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[464] | 94 | ! Revision 3.7 2009-12-11 14:15:58Z heinze |
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| 95 | ! Initial revision |
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[411] | 96 | ! |
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| 97 | ! Description: |
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| 98 | ! ------------ |
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[1682] | 99 | !> Impact of large-scale subsidence or ascent as tendency term for use |
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| 100 | !> in the prognostic equation of potential temperature. This enables the |
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| 101 | !> construction of a constant boundary layer height z_i with time. |
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[411] | 102 | !-----------------------------------------------------------------------------! |
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[1682] | 103 | MODULE subsidence_mod |
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| 104 | |
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[411] | 105 | |
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| 106 | |
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| 107 | IMPLICIT NONE |
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| 108 | |
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| 109 | PRIVATE |
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| 110 | PUBLIC init_w_subsidence, subsidence |
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| 111 | |
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| 112 | INTERFACE init_w_subsidence |
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| 113 | MODULE PROCEDURE init_w_subsidence |
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| 114 | END INTERFACE init_w_subsidence |
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| 115 | |
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| 116 | INTERFACE subsidence |
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| 117 | MODULE PROCEDURE subsidence |
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| 118 | MODULE PROCEDURE subsidence_ij |
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| 119 | END INTERFACE subsidence |
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| 120 | |
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| 121 | CONTAINS |
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| 122 | |
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[1682] | 123 | !------------------------------------------------------------------------------! |
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| 124 | ! Description: |
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| 125 | ! ------------ |
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| 126 | !> @todo Missing subroutine description. |
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| 127 | !------------------------------------------------------------------------------! |
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[411] | 128 | SUBROUTINE init_w_subsidence |
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| 129 | |
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[1320] | 130 | USE arrays_3d, & |
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| 131 | ONLY: dzu, w_subs, zu |
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[411] | 132 | |
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[1320] | 133 | USE control_parameters, & |
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[3294] | 134 | ONLY: message_string, ocean_mode, subs_vertical_gradient, & |
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[1320] | 135 | subs_vertical_gradient_level, subs_vertical_gradient_level_i |
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| 136 | |
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| 137 | USE indices, & |
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| 138 | ONLY: nzb, nzt |
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| 139 | |
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| 140 | USE kinds |
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| 141 | |
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[411] | 142 | IMPLICIT NONE |
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| 143 | |
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[1682] | 144 | INTEGER(iwp) :: i !< |
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| 145 | INTEGER(iwp) :: k !< |
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[411] | 146 | |
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[1682] | 147 | REAL(wp) :: gradient !< |
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| 148 | REAL(wp) :: ws_surface !< |
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[1320] | 149 | |
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[1862] | 150 | IF ( .NOT. ALLOCATED( w_subs ) ) THEN |
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[411] | 151 | ALLOCATE( w_subs(nzb:nzt+1) ) |
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[1353] | 152 | w_subs = 0.0_wp |
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[411] | 153 | ENDIF |
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| 154 | |
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[3294] | 155 | IF ( ocean_mode ) THEN |
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[3302] | 156 | message_string = 'applying large scale vertical motion is not ' // & |
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[3294] | 157 | 'allowed for ocean mode' |
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[411] | 158 | CALL message( 'init_w_subsidence', 'PA0324', 2, 2, 0, 6, 0 ) |
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| 159 | ENDIF |
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| 160 | |
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| 161 | ! |
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| 162 | !-- Compute the profile of the subsidence/ascent velocity |
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| 163 | !-- using the given gradients |
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| 164 | i = 1 |
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[1353] | 165 | gradient = 0.0_wp |
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| 166 | ws_surface = 0.0_wp |
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[411] | 167 | |
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| 168 | |
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[580] | 169 | subs_vertical_gradient_level_i(1) = 0 |
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[411] | 170 | DO k = 1, nzt+1 |
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[1365] | 171 | IF ( i < 11 ) THEN |
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[580] | 172 | IF ( subs_vertical_gradient_level(i) < zu(k) .AND. & |
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[1353] | 173 | subs_vertical_gradient_level(i) >= 0.0_wp ) THEN |
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| 174 | gradient = subs_vertical_gradient(i) / 100.0_wp |
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[580] | 175 | subs_vertical_gradient_level_i(i) = k - 1 |
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[411] | 176 | i = i + 1 |
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| 177 | ENDIF |
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| 178 | ENDIF |
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[1353] | 179 | IF ( gradient /= 0.0_wp ) THEN |
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[411] | 180 | IF ( k /= 1 ) THEN |
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| 181 | w_subs(k) = w_subs(k-1) + dzu(k) * gradient |
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| 182 | ELSE |
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[1353] | 183 | w_subs(k) = ws_surface + 0.5_wp * dzu(k) * gradient |
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[411] | 184 | ENDIF |
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| 185 | ELSE |
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| 186 | w_subs(k) = w_subs(k-1) |
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| 187 | ENDIF |
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| 188 | ENDDO |
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| 189 | |
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| 190 | ! |
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| 191 | !-- In case of no given gradients for the subsidence/ascent velocity, |
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| 192 | !-- choose zero gradient |
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[1353] | 193 | IF ( subs_vertical_gradient_level(1) == -9999999.9_wp ) THEN |
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| 194 | subs_vertical_gradient_level(1) = 0.0_wp |
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[411] | 195 | ENDIF |
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| 196 | |
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| 197 | END SUBROUTINE init_w_subsidence |
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| 198 | |
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| 199 | |
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[1682] | 200 | !------------------------------------------------------------------------------! |
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| 201 | ! Description: |
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| 202 | ! ------------ |
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| 203 | !> @todo Missing subroutine description. |
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| 204 | !------------------------------------------------------------------------------! |
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[1365] | 205 | SUBROUTINE subsidence( tendency, var, var_init, ls_index ) |
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[411] | 206 | |
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[1320] | 207 | USE arrays_3d, & |
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| 208 | ONLY: ddzu, w_subs |
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[411] | 209 | |
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[1320] | 210 | USE control_parameters, & |
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[1380] | 211 | ONLY: dt_3d, intermediate_timestep_count, large_scale_forcing, & |
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| 212 | scalar_rayleigh_damping |
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[1320] | 213 | |
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| 214 | USE indices, & |
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[2232] | 215 | ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzt, & |
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| 216 | wall_flags_0 |
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[1320] | 217 | |
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| 218 | USE kinds |
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| 219 | |
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[1365] | 220 | USE statistics, & |
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[1382] | 221 | ONLY: sums_ls_l, weight_substep |
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[1365] | 222 | |
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[411] | 223 | IMPLICIT NONE |
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| 224 | |
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[1682] | 225 | INTEGER(iwp) :: i !< |
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| 226 | INTEGER(iwp) :: j !< |
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| 227 | INTEGER(iwp) :: k !< |
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| 228 | INTEGER(iwp) :: ls_index !< |
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[411] | 229 | |
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[1682] | 230 | REAL(wp) :: tmp_tend !< |
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| 231 | REAL(wp) :: tmp_grad !< |
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[411] | 232 | |
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[1682] | 233 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< |
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| 234 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tendency !< |
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| 235 | REAL(wp), DIMENSION(nzb:nzt+1) :: var_init !< |
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| 236 | REAL(wp), DIMENSION(nzb:nzt+1) :: var_mod !< |
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[411] | 237 | |
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[464] | 238 | var_mod = var_init |
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[411] | 239 | |
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| 240 | ! |
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| 241 | !-- Influence of w_subsidence on the current tendency term |
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| 242 | DO i = nxl, nxr |
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| 243 | DO j = nys, nyn |
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[1382] | 244 | |
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[2232] | 245 | DO k = nzb+1, nzt |
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[1365] | 246 | IF ( w_subs(k) < 0.0_wp ) THEN ! large-scale subsidence |
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| 247 | tmp_tend = - w_subs(k) * & |
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[2232] | 248 | ( var(k+1,j,i) - var(k,j,i) ) * ddzu(k+1) * & |
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| 249 | MERGE( 1.0_wp, 0.0_wp, & |
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| 250 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[1365] | 251 | ELSE ! large-scale ascent |
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| 252 | tmp_tend = - w_subs(k) * & |
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[2232] | 253 | ( var(k,j,i) - var(k-1,j,i) ) * ddzu(k) * & |
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| 254 | MERGE( 1.0_wp, 0.0_wp, & |
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| 255 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[411] | 256 | ENDIF |
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[1365] | 257 | |
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| 258 | tendency(k,j,i) = tendency(k,j,i) + tmp_tend |
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| 259 | |
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| 260 | IF ( large_scale_forcing ) THEN |
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| 261 | sums_ls_l(k,ls_index) = sums_ls_l(k,ls_index) + tmp_tend & |
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[2232] | 262 | * weight_substep(intermediate_timestep_count) & |
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| 263 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 264 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[1365] | 265 | ENDIF |
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[411] | 266 | ENDDO |
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[1382] | 267 | |
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[1862] | 268 | IF ( large_scale_forcing ) THEN |
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| 269 | sums_ls_l(nzt+1,ls_index) = sums_ls_l(nzt,ls_index) |
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| 270 | ENDIF |
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[1382] | 271 | |
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[411] | 272 | ENDDO |
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| 273 | ENDDO |
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| 274 | |
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| 275 | ! |
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| 276 | !-- Shifting of the initial profile is especially necessary with Rayleigh |
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| 277 | !-- damping switched on |
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[1729] | 278 | IF ( scalar_rayleigh_damping .AND. & |
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| 279 | intermediate_timestep_count == 1 ) THEN |
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[1380] | 280 | DO k = nzb, nzt |
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| 281 | IF ( w_subs(k) < 0.0_wp ) THEN ! large-scale subsidence |
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| 282 | var_mod(k) = var_init(k) - dt_3d * w_subs(k) * & |
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| 283 | ( var_init(k+1) - var_init(k) ) * ddzu(k+1) |
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| 284 | ENDIF |
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| 285 | ENDDO |
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[411] | 286 | ! |
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[1380] | 287 | !-- At the upper boundary, the initial profile is shifted with aid of |
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| 288 | !-- the gradient tmp_grad. (This is ok if the gradients are linear.) |
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| 289 | IF ( w_subs(nzt) < 0.0_wp ) THEN |
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| 290 | tmp_grad = ( var_init(nzt+1) - var_init(nzt) ) * ddzu(nzt+1) |
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| 291 | var_mod(nzt+1) = var_init(nzt+1) - & |
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| 292 | dt_3d * w_subs(nzt+1) * tmp_grad |
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| 293 | ENDIF |
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[411] | 294 | |
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| 295 | |
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[1380] | 296 | DO k = nzt+1, nzb+1, -1 |
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| 297 | IF ( w_subs(k) >= 0.0_wp ) THEN ! large-scale ascent |
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| 298 | var_mod(k) = var_init(k) - dt_3d * w_subs(k) * & |
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| 299 | ( var_init(k) - var_init(k-1) ) * ddzu(k) |
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| 300 | ENDIF |
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| 301 | ENDDO |
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| 302 | ! |
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| 303 | !-- At the lower boundary shifting is not necessary because the |
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| 304 | !-- subsidence velocity w_subs(nzb) vanishes. |
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| 305 | IF ( w_subs(nzb+1) >= 0.0_wp ) THEN |
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| 306 | var_mod(nzb) = var_init(nzb) |
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[411] | 307 | ENDIF |
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[1380] | 308 | |
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| 309 | var_init = var_mod |
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[411] | 310 | ENDIF |
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| 311 | |
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| 312 | |
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| 313 | END SUBROUTINE subsidence |
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| 314 | |
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[1682] | 315 | !------------------------------------------------------------------------------! |
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| 316 | ! Description: |
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| 317 | ! ------------ |
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| 318 | !> @todo Missing subroutine description. |
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| 319 | !------------------------------------------------------------------------------! |
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[1365] | 320 | SUBROUTINE subsidence_ij( i, j, tendency, var, var_init, ls_index ) |
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[411] | 321 | |
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[1320] | 322 | USE arrays_3d, & |
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| 323 | ONLY: ddzu, w_subs |
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[411] | 324 | |
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[1320] | 325 | USE control_parameters, & |
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[1380] | 326 | ONLY: dt_3d, intermediate_timestep_count, large_scale_forcing, & |
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| 327 | scalar_rayleigh_damping |
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[1320] | 328 | |
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| 329 | USE indices, & |
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[2232] | 330 | ONLY: nxl, nxlg, nxrg, nyng, nys, nysg, nzb, nzt, wall_flags_0 |
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[1320] | 331 | |
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| 332 | USE kinds |
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| 333 | |
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[1365] | 334 | USE statistics, & |
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[1382] | 335 | ONLY: sums_ls_l, weight_substep |
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[1365] | 336 | |
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[411] | 337 | IMPLICIT NONE |
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| 338 | |
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[1682] | 339 | INTEGER(iwp) :: i !< |
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| 340 | INTEGER(iwp) :: j !< |
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| 341 | INTEGER(iwp) :: k !< |
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| 342 | INTEGER(iwp) :: ls_index !< |
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[411] | 343 | |
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[1682] | 344 | REAL(wp) :: tmp_tend !< |
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| 345 | REAL(wp) :: tmp_grad !< |
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[411] | 346 | |
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[1682] | 347 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< |
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| 348 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tendency !< |
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| 349 | REAL(wp), DIMENSION(nzb:nzt+1) :: var_init !< |
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| 350 | REAL(wp), DIMENSION(nzb:nzt+1) :: var_mod !< |
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[411] | 351 | |
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[464] | 352 | var_mod = var_init |
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[411] | 353 | |
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| 354 | ! |
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| 355 | !-- Influence of w_subsidence on the current tendency term |
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[2232] | 356 | DO k = nzb+1, nzt |
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[1365] | 357 | IF ( w_subs(k) < 0.0_wp ) THEN ! large-scale subsidence |
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[2232] | 358 | tmp_tend = - w_subs(k) * ( var(k+1,j,i) - var(k,j,i) ) & |
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| 359 | * ddzu(k+1) & |
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| 360 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 361 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[1365] | 362 | ELSE ! large-scale ascent |
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[2232] | 363 | tmp_tend = - w_subs(k) * ( var(k,j,i) - var(k-1,j,i) ) * ddzu(k) & |
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| 364 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 365 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[411] | 366 | ENDIF |
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[1365] | 367 | |
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| 368 | tendency(k,j,i) = tendency(k,j,i) + tmp_tend |
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| 369 | |
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| 370 | IF ( large_scale_forcing ) THEN |
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| 371 | sums_ls_l(k,ls_index) = sums_ls_l(k,ls_index) + tmp_tend & |
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[2232] | 372 | * weight_substep(intermediate_timestep_count)& |
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| 373 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 374 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
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[1365] | 375 | ENDIF |
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[411] | 376 | ENDDO |
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| 377 | |
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[1489] | 378 | IF ( large_scale_forcing ) THEN |
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| 379 | sums_ls_l(nzt+1,ls_index) = sums_ls_l(nzt,ls_index) |
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| 380 | ENDIF |
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[411] | 381 | |
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| 382 | ! |
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| 383 | !-- Shifting of the initial profile is especially necessary with Rayleigh |
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| 384 | !-- damping switched on |
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[1729] | 385 | IF ( scalar_rayleigh_damping .AND. & |
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| 386 | intermediate_timestep_count == 1 ) THEN |
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[1380] | 387 | IF ( i == nxl .AND. j == nys ) THEN ! shifting only once per PE |
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[411] | 388 | |
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[1380] | 389 | DO k = nzb, nzt |
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| 390 | IF ( w_subs(k) < 0.0_wp ) THEN ! large-scale subsidence |
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| 391 | var_mod(k) = var_init(k) - dt_3d * w_subs(k) * & |
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| 392 | ( var_init(k+1) - var_init(k) ) * ddzu(k+1) |
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| 393 | ENDIF |
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| 394 | ENDDO |
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| 395 | ! |
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| 396 | !-- At the upper boundary, the initial profile is shifted with aid of |
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| 397 | !-- the gradient tmp_grad. (This is ok if the gradients are linear.) |
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| 398 | IF ( w_subs(nzt) < 0.0_wp ) THEN |
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| 399 | tmp_grad = ( var_init(nzt+1) - var_init(nzt) ) * ddzu(nzt+1) |
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| 400 | var_mod(nzt+1) = var_init(nzt+1) - & |
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| 401 | dt_3d * w_subs(nzt+1) * tmp_grad |
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[411] | 402 | ENDIF |
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| 403 | |
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| 404 | |
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[1380] | 405 | DO k = nzt+1, nzb+1, -1 |
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| 406 | IF ( w_subs(k) >= 0.0_wp ) THEN ! large-scale ascent |
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| 407 | var_mod(k) = var_init(k) - dt_3d * w_subs(k) * & |
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| 408 | ( var_init(k) - var_init(k-1) ) * ddzu(k) |
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| 409 | ENDIF |
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| 410 | ENDDO |
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| 411 | ! |
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| 412 | !-- At the lower boundary shifting is not necessary because the |
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| 413 | !-- subsidence velocity w_subs(nzb) vanishes. |
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| 414 | IF ( w_subs(nzb+1) >= 0.0_wp ) THEN |
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| 415 | var_mod(nzb) = var_init(nzb) |
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[411] | 416 | ENDIF |
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| 417 | |
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[1380] | 418 | var_init = var_mod |
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[411] | 419 | |
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[1380] | 420 | ENDIF |
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[411] | 421 | ENDIF |
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| 422 | |
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| 423 | END SUBROUTINE subsidence_ij |
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| 424 | |
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| 425 | |
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| 426 | END MODULE subsidence_mod |
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