| 1 | !> @file compute_vpt.f90 |
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| 2 | !--------------------------------------------------------------------------------------------------! |
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| 3 | ! This file is part of the PALM model system. |
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| 4 | ! |
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| 5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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| 6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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| 7 | ! (at your option) any later version. |
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| 8 | ! |
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| 9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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| 10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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| 11 | ! Public License for more details. |
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| 12 | ! |
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| 13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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| 14 | ! <http://www.gnu.org/licenses/>. |
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| 15 | ! |
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| 16 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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| 17 | !--------------------------------------------------------------------------------------------------! |
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| 18 | ! |
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| 19 | ! Current revisions: |
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| 20 | ! ----------------- |
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| 21 | ! |
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| 22 | ! |
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| 23 | ! Former revisions: |
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| 24 | ! ----------------- |
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| 25 | ! $Id: compute_vpt.f90 4559 2020-06-11 08:51:48Z raasch $ |
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| 26 | ! file re-formatted to follow the PALM coding standard |
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| 27 | ! |
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| 28 | ! 4521 2020-05-06 11:39:49Z schwenkel |
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| 29 | ! Rename variable |
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| 30 | ! |
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| 31 | ! 4502 2020-04-17 16:14:16Z schwenkel |
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| 32 | ! Implementation of ice microphysics |
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| 33 | ! |
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| 34 | ! 4360 2020-01-07 11:25:50Z suehring |
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| 35 | ! Corrected "Former revisions" section |
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| 36 | ! |
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| 37 | ! 3655 2019-01-07 16:51:22Z knoop |
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| 38 | ! Modularization of all bulk cloud physics code components |
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| 39 | ! |
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| 40 | ! Revision 1.1 2000/04/13 14:40:53 schroeter |
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| 41 | ! Initial revision |
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| 42 | ! |
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| 43 | ! |
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| 44 | ! Description: |
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| 45 | ! ------------- |
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| 46 | !> Computation of the virtual potential temperature |
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| 47 | !--------------------------------------------------------------------------------------------------! |
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| 48 | SUBROUTINE compute_vpt |
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| 49 | |
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| 50 | |
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| 51 | USE arrays_3d, & |
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| 52 | ONLY: d_exner, pt, q, qi, ql, vpt |
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| 53 | |
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| 54 | USE basic_constants_and_equations_mod, & |
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| 55 | ONLY: ls_d_cp, lv_d_cp |
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| 56 | |
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| 57 | USE control_parameters, & |
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| 58 | ONLY: cloud_droplets |
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| 59 | |
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| 60 | USE indices, & |
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| 61 | ONLY: nzb, nzt |
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| 62 | |
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| 63 | USE kinds |
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| 64 | |
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| 65 | USE bulk_cloud_model_mod, & |
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| 66 | ONLY: bulk_cloud_model, microphysics_ice_phase |
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| 67 | |
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| 68 | IMPLICIT NONE |
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| 69 | |
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| 70 | INTEGER(iwp) :: k !< |
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| 71 | |
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| 72 | IF ( .NOT. bulk_cloud_model .AND. .NOT. cloud_droplets ) THEN |
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| 73 | vpt = pt * ( 1.0_wp + 0.61_wp * q ) |
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| 74 | ELSEIF ( bulk_cloud_model .AND. .NOT. microphysics_ice_phase ) THEN |
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| 75 | DO k = nzb, nzt+1 |
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| 76 | vpt(k,:,:) = ( pt(k,:,:) + d_exner(k) * lv_d_cp * ql(k,:,:) ) * & |
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| 77 | ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ql(k,:,:) ) |
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| 78 | ENDDO |
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| 79 | ELSEIF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN |
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| 80 | DO k = nzb, nzt+1 |
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| 81 | vpt(k,:,:) = ( pt(k,:,:) + d_exner(k) * lv_d_cp * ql(k,:,:) + & |
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| 82 | d_exner(k) * ls_d_cp * qi(k,:,:) ) * & |
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| 83 | ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ( ql(k,:,:) + qi(k,:,:) ) ) |
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| 84 | ENDDO |
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| 85 | ELSE |
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| 86 | vpt = pt * ( 1.0_wp + 0.61_wp * q - ql ) |
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| 87 | ENDIF |
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| 88 | |
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| 89 | END SUBROUTINE compute_vpt |
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