[1682] | 1 | !> @file init_pt_anomaly.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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[484] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[1354] | 22 | ! |
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[2001] | 23 | ! |
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[1321] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: init_pt_anomaly.f90 3035 2018-05-24 09:35:20Z gronemeier $ |
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[3035] | 27 | ! Add option to initialize warm air bubble close to surface |
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| 28 | ! |
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| 29 | ! 2718 2018-01-02 08:49:38Z maronga |
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[2716] | 30 | ! Corrected "Former revisions" section |
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| 31 | ! |
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| 32 | ! 2696 2017-12-14 17:12:51Z kanani |
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| 33 | ! Change in file header (GPL part) |
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[1321] | 34 | ! |
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[2716] | 35 | ! 2101 2017-01-05 16:42:31Z suehring |
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| 36 | ! |
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[2001] | 37 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 38 | ! Forced header and separation lines into 80 columns |
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| 39 | ! |
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[1683] | 40 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 41 | ! Code annotations made doxygen readable |
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| 42 | ! |
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[1354] | 43 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 44 | ! REAL constants provided with KIND-attribute |
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| 45 | ! |
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[1323] | 46 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 47 | ! REAL constants defined as wp_kind |
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| 48 | ! |
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[1321] | 49 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 50 | ! ONLY-attribute added to USE-statements, |
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| 51 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 52 | ! kinds are defined in new module kinds, |
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| 53 | ! revision history before 2012 removed, |
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| 54 | ! comment fields (!:) to be used for variable explanations added to |
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| 55 | ! all variable declaration statements |
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[1] | 56 | ! |
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[1037] | 57 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 58 | ! code put under GPL (PALM 3.9) |
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| 59 | ! |
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[863] | 60 | ! 861 2012-03-26 14:18:34Z suehring |
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| 61 | ! Modification of the amplitude to obtain a visible temperature perturbation. |
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| 62 | ! |
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[1] | 63 | ! Revision 1.1 1997/08/29 08:58:56 raasch |
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| 64 | ! Initial revision |
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| 65 | ! |
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| 66 | ! |
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| 67 | ! Description: |
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| 68 | ! ------------ |
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[1682] | 69 | !> Impose a temperature perturbation for an advection test. |
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[1] | 70 | !------------------------------------------------------------------------------! |
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[1682] | 71 | SUBROUTINE init_pt_anomaly |
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| 72 | |
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[1] | 73 | |
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[1320] | 74 | USE arrays_3d, & |
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| 75 | ONLY: pt, zu |
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[1] | 76 | |
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[3035] | 77 | USE control_parameters |
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| 78 | |
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[1320] | 79 | USE grid_variables, & |
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| 80 | ONLY: dx, dy |
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| 81 | |
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| 82 | USE indices, & |
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[3035] | 83 | ONLY: nbgp, nx, nxl, nxr, ny, nyn, nys, nzb, nzt |
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[1320] | 84 | |
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| 85 | USE kinds |
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| 86 | |
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[1] | 87 | IMPLICIT NONE |
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| 88 | |
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[3035] | 89 | INTEGER(iwp) :: i !< grid index along x |
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| 90 | INTEGER(iwp) :: ic !< center index along x |
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| 91 | INTEGER(iwp) :: j !< grid index along y |
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| 92 | INTEGER(iwp) :: jc !< center index along y |
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| 93 | INTEGER(iwp) :: k !< grid index along z |
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| 94 | INTEGER(iwp) :: kc !< center index along z |
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[1320] | 95 | |
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[3035] | 96 | REAL(wp) :: amount !< amount of temperature perturbation |
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| 97 | REAL(wp) :: bubble_center_y !< center of bubble in y |
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| 98 | REAL(wp) :: bubble_center_z = 170.0 !< center of bubble in z |
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| 99 | REAL(wp) :: bubble_sigma_y = 300.0 !< width of bubble in y |
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| 100 | REAL(wp) :: bubble_sigma_z = 150.0 !< width of bubble in z |
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| 101 | REAL(wp) :: initial_temperature_difference = 0.4 !< temperature perturbation for bubble in K |
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| 102 | REAL(wp) :: radius !< radius of pt anomaly |
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| 103 | REAL(wp) :: rc !< radius of pt anomaly |
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| 104 | REAL(wp) :: x !< x dimension of pt anomaly |
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| 105 | REAL(wp) :: y !< y dimension of pt anomaly |
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| 106 | REAL(wp) :: z !< z dimension of pt anomaly |
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[1320] | 107 | |
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[3035] | 108 | |
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[1] | 109 | ! |
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| 110 | !-- Defaults: radius rc, strength z, |
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[3035] | 111 | !-- position of center: ic, jc, kc |
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[1353] | 112 | rc = 10.0_wp * dx |
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[1] | 113 | ic = ( nx+1 ) / 2 |
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| 114 | jc = ic |
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[1353] | 115 | kc = nzt / 2 |
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[3035] | 116 | |
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| 117 | IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN |
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[1] | 118 | ! |
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[3035] | 119 | !-- Compute the perturbation. |
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| 120 | DO i = nxl, nxr |
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| 121 | DO j = nys, nyn |
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| 122 | DO k = nzb+1, nzt |
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| 123 | x = ( i - ic ) * dx |
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| 124 | y = ( j - jc ) * dy |
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| 125 | z = ABS( zu(k) - zu(kc) ) |
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| 126 | radius = SQRT( x**2 + y**2 + z**2 ) |
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| 127 | IF ( radius <= rc ) THEN |
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| 128 | amount = 5.0_wp * EXP( -( radius * 0.001_wp / 2.0_wp )**2 ) |
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| 129 | ELSE |
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| 130 | amount = 0.0_wp |
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| 131 | ENDIF |
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[1] | 132 | |
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[3035] | 133 | pt(k,j,i) = pt(k,j,i) + amount |
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[1] | 134 | |
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[3035] | 135 | ENDDO |
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[1] | 136 | ENDDO |
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| 137 | ENDDO |
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[3035] | 138 | |
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| 139 | ! |
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| 140 | !-- Initialize warm air bubble close to surface and homogenous elegonated |
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| 141 | !-- along x-Axis |
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| 142 | ELSEIF ( INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN |
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| 143 | ! |
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| 144 | !-- Calculate y-center of model domain |
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| 145 | bubble_center_y = ( ny + 1.0 ) * dy / 2.0 |
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| 146 | |
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| 147 | ! |
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| 148 | !-- Compute perturbation for potential temperaure |
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| 149 | DO i = nxl, nxr |
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| 150 | DO j = nys, nyn |
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| 151 | DO k = nzb+1, nzt |
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| 152 | pt(k,j,i) = pt(k,j,i) + & |
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| 153 | EXP( -0.5 * ( (j* dy - bubble_center_y) / & |
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| 154 | bubble_sigma_y )**2) * & |
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| 155 | EXP( -0.5 * ( (zu(k) - bubble_center_z) / & |
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| 156 | bubble_sigma_z)**2) * & |
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| 157 | initial_temperature_difference |
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| 158 | ENDDO |
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| 159 | ENDDO |
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| 160 | ENDDO |
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| 161 | ENDIF |
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[1] | 162 | |
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| 163 | ! |
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| 164 | !-- Exchange of boundary values for temperature |
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[667] | 165 | CALL exchange_horiz( pt, nbgp ) |
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[1] | 166 | |
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| 167 | |
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| 168 | END SUBROUTINE init_pt_anomaly |
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