source: palm/trunk/SOURCE/compute_vpt.f90 @ 1354

Last change on this file since 1354 was 1354, checked in by heinze, 7 years ago

last commit documented

  • Property svn:keywords set to Id
File size: 2.7 KB
Line 
1 SUBROUTINE compute_vpt
2
3!--------------------------------------------------------------------------------!
4! This file is part of PALM.
5!
6! PALM is free software: you can redistribute it and/or modify it under the terms
7! of the GNU General Public License as published by the Free Software Foundation,
8! either version 3 of the License, or (at your option) any later 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 1997-2014 Leibniz Universitaet Hannover
18!--------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: compute_vpt.f90 1354 2014-04-08 15:22:57Z heinze $
27!
28! 1353 2014-04-08 15:21:23Z heinze
29! REAL constants provided with KIND-attribute
30!
31! 1320 2014-03-20 08:40:49Z raasch
32! ONLY-attribute added to USE-statements,
33! kind-parameters added to all INTEGER and REAL declaration statements,
34! kinds are defined in new module kinds,
35! revision history before 2012 removed,
36! comment fields (!:) to be used for variable explanations added to
37! all variable declaration statements
38!
39! 1036 2012-10-22 13:43:42Z raasch
40! code put under GPL (PALM 3.9)
41!
42! 803 2012-01-16 15:48:46Z franke
43! Bugfix: wrong factor in calculation of vpt in case of cloud droplets
44!
45! Revision 1.1  2000/04/13 14:40:53  schroeter
46! Initial revision
47!
48!
49! Description:
50! -------------
51! Computation of the virtual potential temperature
52!------------------------------------------------------------------------------!
53
54    USE arrays_3d,                                                             &
55        ONLY:  pt, q, ql, vpt
56       
57    USE indices,                                                               &
58        ONLY:  nzb, nzt
59       
60    USE cloud_parameters,                                                      &
61        ONLY:  l_d_cp, pt_d_t
62       
63    USE control_parameters,                                                    &
64        ONLY:  cloud_droplets, cloud_physics
65       
66    USE kinds
67
68    IMPLICIT NONE
69
70    INTEGER(iwp) :: k   !:
71
72    IF ( .NOT. cloud_physics  .AND.  .NOT. cloud_droplets )  THEN
73       vpt = pt * ( 1.0_wp + 0.61_wp * q )
74    ELSE IF (cloud_physics)  THEN
75       DO  k = nzb, nzt+1
76          vpt(k,:,:) = ( pt(k,:,:) + pt_d_t(k) * l_d_cp * ql(k,:,:) ) *        &
77                       ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ql(k,:,:) ) 
78       ENDDO
79    ELSE
80       vpt = pt * ( 1.0_wp + 0.61_wp * q - ql ) 
81    ENDIF
82
83 END SUBROUTINE compute_vpt
Note: See TracBrowser for help on using the repository browser.