source: palm/trunk/UTIL/inifor/src/defs.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

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File size: 4.1 KB
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1!> @file src/defs.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 2017-2018 Leibniz Universitaet Hannover
18! Copyright 2017-2018 Deutscher Wetterdienst Offenbach
19!------------------------------------------------------------------------------!
20!
21! Current revisions:
22! -----------------
23!
24!
25! Former revisions:
26! -----------------
27! $Id: defs.f90 2718 2018-01-02 08:49:38Z maronga $
28! Initial revision
29!
30!
31!
32! Authors:
33! --------
34! @author Eckhard Kadasch
35!
36! Description:
37! ------------
38!> The defs module provides global constants used in INIFOR.
39!------------------------------------------------------------------------------!
40 MODULE defs
41 
42 IMPLICIT NONE
43 
44 ! Parameters for type definitions
45 INTEGER, PARAMETER  ::  dp    = 8   !< double precision (8 bytes = 64 bits)
46 INTEGER, PARAMETER  ::  sp    = 4   !< single precision (4 bytes = 32 bits)
47 INTEGER, PARAMETER  ::  hp    = 2   !< half precision (2 bytes = 16 bits)
48 INTEGER, PARAMETER  ::  PATH  = 140 !< length of file path strings
49 INTEGER, PARAMETER  ::  LNAME = 150 !< length of long name strings
50 INTEGER, PARAMETER  ::  SNAME = 40  !< length of short name strings
51 INTEGER, PARAMETER  ::  DATE  = 10  !< length of date strings
52
53 ! Trigonomentry
54 REAL(dp), PARAMETER ::  PI = 3.14159265358979323846264338_dp !< Ratio of a circle's circumference to its diamter [-]
55 REAL(dp), PARAMETER ::  TO_RADIANS = PI / 180.0_dp           !< Conversion factor from degrees to radiant [-]
56 REAL(dp), PARAMETER ::  TO_DEGREES = 180.0_dp / PI           !< Conversion factor from radians to degrees [-]
57
58 ! COSMO-DE parameters
59 INTEGER, PARAMETER  ::  WATER_ID = 9                         !< Integer corresponding to the water soil type in COSMO-DE [-]
60 REAL(dp), PARAMETER ::  EARTH_RADIUS = 6371229.0_dp          !< Earth radius used in COSMO-DE [m]
61 REAL(dp), PARAMETER ::  P_SL = 1e5_dp                        !< Reference pressure for computation of COSMO-DE's basic state pressure [Pa]
62 REAL(dp), PARAMETER ::  T_SL = 288.15_dp                     !< Reference temperature for computation of COSMO-DE's basic state pressure [K]
63 REAL(dp), PARAMETER ::  BETA = 42.0_dp                       !< logarithmic lapse rate, dT / d ln(p), for computation of COSMO-DE's basic state pressure [K]
64 REAL(dp), PARAMETER ::  RD   = 287.05_dp                     !< specific gar constant of dry air, used in computation of COSMO-DE's basic state [J/kg/K]
65 REAL(dp), PARAMETER ::  G    = 9.80665_dp                    !< acceleration of Earth's gravity, used in computation of COSMO-DE's basic state [m/s/s]
66 REAL(dp), PARAMETER ::  RHO_L = 1e3_dp                       !< density of liquid water, used to convert W_SO from [kg/m^2] to [m^3/m^3], in [kg/m^3]
67
68 ! PALM-4U parameters
69 REAL(dp), PARAMETER ::  P_REF   = 1e5_dp                     !< Reference pressure for potential temperature [Pa]
70 REAL(dp), PARAMETER ::  RD_PALM = 287.0_dp                   !< specific gas constant of dry air, used in computation of PALM-4U's potential temperature [J/kg/K]
71 REAL(dp), PARAMETER ::  CP_PALM = 1005.0_dp                  !< heat capacity of dry air at constant pressure, used in computation of PALM-4U's potential temperature [J/kg/K]
72
73 ! INIFOR parameters
74 INTEGER, PARAMETER          ::  FILL_ITERATIONS = 10         !< Number of iterations for extrapolating soil data into COSMO-DE water cells [-]
75 REAL(dp), PARAMETER         ::  FORCING_FREQ = 3600.0_dp     !< Reference pressure for potential temperature [Pa]
76 CHARACTER(LEN=*), PARAMETER ::  VERSION = '1.1.4'            !< path to script for generating input file names
77
78 END MODULE defs
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