[2696] | 1 | !> @file src/defs.f90 |
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| 2 | !------------------------------------------------------------------------------! |
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[2718] | 3 | ! This file is part of the PALM model system. |
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[2696] | 4 | ! |
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[2718] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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| 6 | ! terms of the GNU General Public License as published by the Free Software |
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| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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[2696] | 8 | ! version. |
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| 9 | ! |
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[2718] | 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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[2696] | 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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[2718] | 17 | ! Copyright 2017-2018 Leibniz Universitaet Hannover |
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| 18 | ! Copyright 2017-2018 Deutscher Wetterdienst Offenbach |
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[2696] | 19 | !------------------------------------------------------------------------------! |
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| 20 | ! |
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| 21 | ! Current revisions: |
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| 22 | ! ----------------- |
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| 23 | ! |
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| 24 | ! |
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| 25 | ! Former revisions: |
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| 26 | ! ----------------- |
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| 27 | ! $Id: defs.f90 2718 2018-01-02 08:49:38Z Giersch $ |
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| 28 | ! Initial revision |
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| 29 | ! |
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| 30 | ! |
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| 31 | ! |
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| 32 | ! Authors: |
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| 33 | ! -------- |
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| 34 | ! @author Eckhard Kadasch |
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| 35 | ! |
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| 36 | ! Description: |
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| 37 | ! ------------ |
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| 38 | !> The defs module provides global constants used in INIFOR. |
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| 39 | !------------------------------------------------------------------------------! |
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| 40 | MODULE defs |
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| 41 | |
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| 42 | IMPLICIT NONE |
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| 43 | |
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| 44 | ! Parameters for type definitions |
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| 45 | INTEGER, PARAMETER :: dp = 8 !< double precision (8 bytes = 64 bits) |
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| 46 | INTEGER, PARAMETER :: sp = 4 !< single precision (4 bytes = 32 bits) |
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| 47 | INTEGER, PARAMETER :: hp = 2 !< half precision (2 bytes = 16 bits) |
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| 48 | INTEGER, PARAMETER :: PATH = 140 !< length of file path strings |
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| 49 | INTEGER, PARAMETER :: LNAME = 150 !< length of long name strings |
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| 50 | INTEGER, PARAMETER :: SNAME = 40 !< length of short name strings |
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| 51 | INTEGER, PARAMETER :: DATE = 10 !< length of date strings |
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| 52 | |
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| 53 | ! Trigonomentry |
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| 54 | REAL(dp), PARAMETER :: PI = 3.14159265358979323846264338_dp !< Ratio of a circle's circumference to its diamter [-] |
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| 55 | REAL(dp), PARAMETER :: TO_RADIANS = PI / 180.0_dp !< Conversion factor from degrees to radiant [-] |
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| 56 | REAL(dp), PARAMETER :: TO_DEGREES = 180.0_dp / PI !< Conversion factor from radians to degrees [-] |
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| 57 | |
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| 58 | ! COSMO-DE parameters |
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| 59 | INTEGER, PARAMETER :: WATER_ID = 9 !< Integer corresponding to the water soil type in COSMO-DE [-] |
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| 60 | REAL(dp), PARAMETER :: EARTH_RADIUS = 6371229.0_dp !< Earth radius used in COSMO-DE [m] |
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| 61 | REAL(dp), PARAMETER :: P_SL = 1e5_dp !< Reference pressure for computation of COSMO-DE's basic state pressure [Pa] |
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| 62 | REAL(dp), PARAMETER :: T_SL = 288.15_dp !< Reference temperature for computation of COSMO-DE's basic state pressure [K] |
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| 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] |
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| 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] |
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| 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] |
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| 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] |
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| 67 | |
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| 68 | ! PALM-4U parameters |
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| 69 | REAL(dp), PARAMETER :: P_REF = 1e5_dp !< Reference pressure for potential temperature [Pa] |
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| 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] |
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| 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] |
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| 72 | |
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| 73 | ! INIFOR parameters |
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| 74 | INTEGER, PARAMETER :: FILL_ITERATIONS = 10 !< Number of iterations for extrapolating soil data into COSMO-DE water cells [-] |
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| 75 | REAL(dp), PARAMETER :: FORCING_FREQ = 3600.0_dp !< Reference pressure for potential temperature [Pa] |
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| 76 | CHARACTER(LEN=*), PARAMETER :: VERSION = '1.1.4' !< path to script for generating input file names |
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| 77 | |
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| 78 | END MODULE defs |
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