source: palm/trunk/SOURCE/lpm_calc_liquid_water_content.f90 @ 2718

Last change on this file since 2718 was 2718, checked in by maronga, 4 years ago

deleting of deprecated files; headers updated where needed

  • Property svn:keywords set to Id
File size: 4.8 KB
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1!> @file lpm_calc_liquid_water_content.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 1997-2018 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! ------------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: lpm_calc_liquid_water_content.f90 2718 2018-01-02 08:49:38Z maronga $
27! Corrected "Former revisions" section
28!
29! 2696 2017-12-14 17:12:51Z kanani
30! Change in file header (GPL part)
31!
32! 2101 2017-01-05 16:42:31Z suehring
33!
34! 2000 2016-08-20 18:09:15Z knoop
35! Forced header and separation lines into 80 columns
36!
37! 1822 2016-04-07 07:49:42Z hoffmann
38! Unused variables removed.
39!
40! 1682 2015-10-07 23:56:08Z knoop
41! Code annotations made doxygen readable
42!
43! 1359 2014-04-11 17:15:14Z hoffmann
44! New particle structure integrated.
45! Kind definition added to all floating point numbers.
46!
47! 1320 2014-03-20 08:40:49Z raasch
48! ONLY-attribute added to USE-statements,
49! kind-parameters added to all INTEGER and REAL declaration statements,
50! kinds are defined in new module kinds,
51! comment fields (!:) to be used for variable explanations added to
52! all variable declaration statements
53!
54! 1036 2012-10-22 13:43:42Z raasch
55! code put under GPL (PALM 3.9)
56!
57! 849 2012-03-15 10:35:09Z raasch
58! initial revision (former part of advec_particles)
59!
60!
61! Description:
62! ------------
63!> Calculate the liquid water content for each grid box.
64!------------------------------------------------------------------------------!
65 SUBROUTINE lpm_calc_liquid_water_content
66 
67
68    USE arrays_3d,                                                             &
69        ONLY:  ql, ql_v, ql_vp
70
71    USE cloud_parameters,                                                      &
72        ONLY:  rho_l
73
74    USE constants,                                                             &
75        ONLY:  pi
76
77    USE control_parameters,                                                    &
78        ONLY:  dz, message_string, rho_surface
79
80    USE cpulog,                                                                &
81        ONLY:  cpu_log, log_point_s
82
83    USE grid_variables,                                                        &
84        ONLY:  dx, dy
85
86    USE indices,                                                               &
87        ONLY:  nxl, nxr, nyn, nys, nzb, nzt
88
89    USE kinds
90
91    USE particle_attributes,                                                   &
92        ONLY:  grid_particles, number_of_particles, particles, prt_count
93
94    IMPLICIT NONE
95
96    INTEGER(iwp) ::  i   !<
97    INTEGER(iwp) ::  j   !<
98    INTEGER(iwp) ::  k   !<
99    INTEGER(iwp) ::  n   !<
100
101    CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'start' )
102
103!
104!-- Set water content initially to zero
105    ql = 0.0_wp;  ql_v = 0.0_wp;  ql_vp = 0.0_wp
106
107!
108!-- Calculate for each grid box
109    DO  i = nxl, nxr
110       DO  j = nys, nyn
111          DO  k = nzb+1, nzt
112
113             number_of_particles = prt_count(k,j,i)
114             IF ( number_of_particles <= 0 )  CYCLE
115             particles => grid_particles(k,j,i)%particles(1:number_of_particles)
116
117!
118!--          Calculate the total volume in the boxes (ql_v, weighting factor
119!--          has to beincluded)
120             DO  n = 1, prt_count(k,j,i)
121                ql_v(k,j,i)  = ql_v(k,j,i)  + particles(n)%weight_factor *  &
122                                              particles(n)%radius**3
123             ENDDO
124
125!
126!--          Calculate the liquid water content
127             IF ( ql_v(k,j,i) /= 0.0_wp )  THEN
128                ql(k,j,i) = ql(k,j,i) + rho_l * 1.33333333_wp * pi *           &
129                                        ql_v(k,j,i) /                       &
130                                        ( rho_surface * dx * dy * dz )
131
132                IF ( ql(k,j,i) < 0.0_wp )  THEN
133                   WRITE( message_string, * )  'LWC out of range: ' , &
134                                               ql(k,j,i),i,j,k
135                   CALL message( 'lpm_calc_liquid_water_content', '', 2, 2, &
136                                 -1, 6, 1 )
137                ENDIF
138
139             ELSE
140
141                ql(k,j,i) = 0.0_wp
142
143             ENDIF
144
145          ENDDO
146       ENDDO
147    ENDDO
148
149    CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'stop' )
150
151
152 END SUBROUTINE lpm_calc_liquid_water_content
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