source: palm/trunk/SOURCE/compute_vpt.f90 @ 4313

Last change on this file since 4313 was 4182, checked in by scharf, 22 months ago
  • corrected "Former revisions" section
  • minor formatting in "Former revisions" section
  • added "Author" section
  • Property svn:keywords set to Id
File size: 2.4 KB
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1!> @file compute_vpt.f90
2!------------------------------------------------------------------------------!
3! This file is part of the PALM model system.
4!
5! PALM is free software: you can redistribute it and/or modify it under the
6! terms of the GNU General Public License as published by the Free Software
7! Foundation, either version 3 of the License, or (at your option) any later
8! version.
9!
10! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12! A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
13!
14! You should have received a copy of the GNU General Public License along with
15! PALM. If not, see <http://www.gnu.org/licenses/>.
16!
17! Copyright 1997-2019 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: compute_vpt.f90 4182 2019-08-22 15:20:23Z suehring $
27! Corrected "Former revisions" section
28!
29! 3655 2019-01-07 16:51:22Z knoop
30! Modularization of all bulk cloud physics code components
31!
32! Revision 1.1  2000/04/13 14:40:53  schroeter
33! Initial revision
34!
35!
36! Description:
37! -------------
38!> Computation of the virtual potential temperature
39!------------------------------------------------------------------------------!
40 SUBROUTINE compute_vpt
41 
42
43    USE arrays_3d,                                                             &
44        ONLY:  pt, q, ql, vpt, d_exner
45
46    USE basic_constants_and_equations_mod,                                     &
47        ONLY:  lv_d_cp
48
49    USE control_parameters,                                                    &
50        ONLY:  cloud_droplets
51
52    USE indices,                                                               &
53        ONLY:  nzb, nzt
54
55    USE kinds
56
57    USE bulk_cloud_model_mod,                                                  &
58        ONLY:  bulk_cloud_model
59
60    IMPLICIT NONE
61
62    INTEGER(iwp) :: k   !<
63
64    IF ( .NOT. bulk_cloud_model  .AND.  .NOT. cloud_droplets )  THEN
65       vpt = pt * ( 1.0_wp + 0.61_wp * q )
66    ELSE IF (bulk_cloud_model)  THEN
67       DO  k = nzb, nzt+1
68          vpt(k,:,:) = ( pt(k,:,:) + d_exner(k) * lv_d_cp * ql(k,:,:) ) *      &
69                       ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ql(k,:,:) ) 
70       ENDDO
71    ELSE
72       vpt = pt * ( 1.0_wp + 0.61_wp * q - ql ) 
73    ENDIF
74
75 END SUBROUTINE compute_vpt
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