source: palm/trunk/SOURCE/user_init_plant_canopy.f90 @ 2000

Last change on this file since 2000 was 2000, checked in by knoop, 5 years ago

Forced header and separation lines into 80 columns

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1!> @file user_init_plant_canopy.f90
2!------------------------------------------------------------------------------!
3! This file is part of PALM.
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 1997-2016 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22! Forced header and separation lines into 80 columns
23!
24! Former revisions:
25! -----------------
26! $Id: user_init_plant_canopy.f90 2000 2016-08-20 18:09:15Z knoop $
27!
28! 1951 2016-06-20 10:05:12Z suehring
29! Bugfix in example initialization
30!
31! 1682 2015-10-07 23:56:08Z knoop
32! Code annotations made doxygen readable
33!
34! 1484 2014-10-21 10:53:05Z kanani
35! Changes in the course of the canopy-model modularization:
36!   module plant_canopy_model_mod added,
37!   definition of array cdc (canopy drag coefficient) removed, since it is now
38!   defined purely as a single constant value (see module plant_canopy_model)
39!
40! 1353 2014-04-08 15:21:23Z heinze
41! REAL constants provided with KIND-attribute
42!
43! 1320 2014-03-20 08:40:49Z raasch
44! kind-parameters added to all INTEGER and REAL declaration statements,
45! kinds are defined in new module kinds,
46! old module precision_kind is removed,
47! revision history before 2012 removed,
48! comment fields (!:) to be used for variable explanations added to
49! all variable declaration statements
50!
51! 1036 2012-10-22 13:43:42Z raasch
52! code put under GPL (PALM 3.9)
53!
54! 211 2008-11-11 04:46:24Z raasch
55! Former file user_interface.f90 split into one file per subroutine
56!
57! Description:
58! ------------
59!> Initialisation of the leaf area density array (for scalar grid points) and
60!> the array of the canopy drag coefficient, if the user has not chosen any
61!> of the default cases
62!------------------------------------------------------------------------------!
63 SUBROUTINE user_init_plant_canopy
64 
65
66    USE arrays_3d
67   
68    USE control_parameters
69   
70    USE indices
71   
72    USE kinds
73
74    USE plant_canopy_model_mod
75   
76    USE user
77
78    IMPLICIT NONE
79
80    INTEGER(iwp) :: i   !< running index
81    INTEGER(iwp) :: j   !< running index
82
83!
84!-- Here the user-defined grid initializing actions follow:
85
86!
87!-- Set the 3D-array lad_s for user defined canopies
88    SELECT CASE ( TRIM( canopy_mode ) )
89
90       CASE ( 'block' )
91!
92!--       Not allowed here since this is the standard case used in init_3d_model.
93
94       CASE ( 'user_defined_canopy_1' )
95!
96!--       Here the user can define his own forest topography.
97!--       The following lines contain an example, where the plant canopy extends
98!--       only over the second half of the model domain along x.
99!--       Attention: DO-loops have to include the ghost points (nxlg-nxrg,
100!--       nysg-nyng), because no exchange of ghost point information is intended,
101!--       in order to minimize communication between CPUs.
102!          DO  i = nxlg, nxrg
103!             IF ( i >= INT( ( nx+1 ) / 2 ) ) THEN
104!                DO  j = nysg, nyng
105!                   lad_s(:,j,i) = lad(:)
106!                ENDDO
107!             ELSE
108!                lad_s(:,:,i) = 0.0_wp
109!             ENDIF
110!          ENDDO
111!
112!--       After definition, please
113!--       remove the following three lines!
114          message_string = 'canopy_mode "' // canopy_mode // &
115                           '" not available yet'
116          CALL message( 'user_init_plant_canopy', 'UI0007', 0, 1, 0, 6, 0 )
117         
118       CASE DEFAULT
119!
120!--       The DEFAULT case is reached if the parameter canopy_mode contains a
121!--       wrong character string that is neither recognized in init_3d_model nor
122!--       here in user_init_plant_canopy.
123          message_string = 'unknown canopy_mode "' // canopy_mode // '"'
124          CALL message( 'user_init_plant_canopy', 'UI0008', 1, 2, 0, 6, 0 )
125
126    END SELECT
127
128
129 END SUBROUTINE user_init_plant_canopy
130
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