1 | !> @file src/defs.f90 |
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2 | !------------------------------------------------------------------------------! |
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3 | ! This file is part of the PALM model system. |
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4 | ! |
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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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8 | ! version. |
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9 | ! |
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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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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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17 | ! Copyright 2017-2018 Leibniz Universitaet Hannover |
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18 | ! Copyright 2017-2018 Deutscher Wetterdienst Offenbach |
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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 hellstea $ |
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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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