source: palm/trunk/UTIL/inifor/src/inifor_defs.f90 @ 3456

Last change on this file since 3456 was 3456, checked in by eckhard, 3 years ago

inifor: Removed surface forcing and internal arrays from netCDF output

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1!> @file src/inifor_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: inifor_defs.f90 3456 2018-10-30 14:29:54Z eckhard $
28! Bumped version number
29!
30!
31! 3447 2018-10-29 15:52:54Z eckhard
32! Renamed source files for compatibilty with PALM build system
33!
34!
35! 3395 2018-10-22 17:32:49Z eckhard
36! New parameters for computation of geostrophic winds
37! Bumped INIFOR version number
38!
39!
40! 3183 2018-07-27 14:25:55Z suehring
41! Updated defaults for soil extrapolation steps and nudging time-scale
42! Improved handling of the start date string
43! Added gas constant for water vapor
44! Bumped INIFOR version number
45!
46!
47! 3182 2018-07-27 13:36:03Z suehring
48! Initial revision
49!
50!
51!
52! Authors:
53! --------
54! @author Eckhard Kadasch
55!
56! Description:
57! ------------
58!> The defs module provides global constants used in INIFOR.
59!------------------------------------------------------------------------------!
60 MODULE defs
61 
62 IMPLICIT NONE
63 
64 ! Parameters for type definitions
65 INTEGER, PARAMETER  ::  dp    = 8   !< double precision (8 bytes = 64 bits)
66 INTEGER, PARAMETER  ::  sp    = 4   !< single precision (4 bytes = 32 bits)
67 INTEGER, PARAMETER  ::  hp    = 2   !< half precision (2 bytes = 16 bits)
68 INTEGER, PARAMETER  ::  PATH  = 140 !< length of file path strings
69 INTEGER, PARAMETER  ::  LNAME = 150 !< length of long name strings
70 INTEGER, PARAMETER  ::  SNAME = 40  !< length of short name strings
71 INTEGER, PARAMETER  ::  DATE  = 10  !< length of date strings
72
73 ! Trigonomentry
74 REAL(dp), PARAMETER ::  PI = 3.14159265358979323846264338_dp !< Ratio of a circle's circumference to its diamter [-]
75 REAL(dp), PARAMETER ::  TO_RADIANS = PI / 180.0_dp           !< Conversion factor from degrees to radiant [-]
76 REAL(dp), PARAMETER ::  TO_DEGREES = 180.0_dp / PI           !< Conversion factor from radians to degrees [-]
77
78 ! COSMO-DE parameters
79 INTEGER, PARAMETER  ::  WATER_ID = 9                         !< Integer corresponding to the water soil type in COSMO-DE [-]
80 REAL(dp), PARAMETER ::  EARTH_RADIUS = 6371229.0_dp          !< Earth radius used in COSMO-DE [m]
81 REAL(dp), PARAMETER ::  P_SL = 1e5_dp                        !< Reference pressure for computation of COSMO-DE's basic state pressure [Pa]
82 REAL(dp), PARAMETER ::  T_SL = 288.15_dp                     !< Reference temperature for computation of COSMO-DE's basic state pressure [K]
83 REAL(dp), PARAMETER ::  BETA = 42.0_dp                       !< logarithmic lapse rate, dT / d ln(p), for computation of COSMO-DE's basic state pressure [K]
84 REAL(dp), PARAMETER ::  RD   = 287.05_dp                     !< specific gas constant of dry air, used in computation of COSMO-DE's basic state [J/kg/K]
85 REAL(dp), PARAMETER ::  RV   = 461.51_dp                     !< specific gas constant of water vapor [J/kg/K]
86 REAL(dp), PARAMETER ::  G    = 9.80665_dp                    !< acceleration of Earth's gravity, used in computation of COSMO-DE's basic state [m/s/s]
87 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]
88 REAL(dp), PARAMETER ::  HECTO = 100_dp                       !< unit conversion factor from hPa to Pa
89
90 ! PALM-4U parameters
91 REAL(dp), PARAMETER ::  OMEGA   = 7.29e-5_dp                 !< angular velocity of Earth's rotation [s^-1]
92 REAL(dp), PARAMETER ::  P_REF   = 1e5_dp                     !< Reference pressure for potential temperature [Pa]
93 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]
94 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]
95
96 ! INIFOR parameters
97 INTEGER, PARAMETER          ::  FILL_ITERATIONS = 5          !< Number of iterations for extrapolating soil data into COSMO-DE water cells [-]
98 INTEGER, PARAMETER          ::  FORCING_STEP = 1             !< Number of hours between forcing time steps [h]
99 REAL(dp), PARAMETER         ::  NUDGING_TAU = 21600.0_dp     !< Nudging relaxation time scale [s]
100 CHARACTER(LEN=*), PARAMETER ::  VERSION = '1.4.1'            !< INIFOR version number
101 CHARACTER(LEN=*), PARAMETER ::  COPYRIGHT = 'Copyright 2017-2018 Leibniz Universitaet Hannover' // &
102     NEW_LINE(' ') // ' Copyright 2017-2018 Deutscher Wetterdienst Offenbach' !< Copyright notice
103
104 END MODULE defs
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