| 1 | ! radiation_gas_constants.F90 - Molar mases and ID codes of the various gases |
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| 2 | ! |
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| 3 | ! (C) Copyright 2014- ECMWF. |
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| 4 | ! |
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| 5 | ! This software is licensed under the terms of the Apache Licence Version 2.0 |
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| 6 | ! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. |
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| 7 | ! |
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| 8 | ! In applying this licence, ECMWF does not waive the privileges and immunities |
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| 9 | ! granted to it by virtue of its status as an intergovernmental organisation |
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| 10 | ! nor does it submit to any jurisdiction. |
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| 11 | ! |
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| 12 | ! Author: Robin Hogan |
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| 13 | ! Email: r.j.hogan@ecmwf.int |
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| 14 | ! License: see the COPYING file for details |
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| 15 | ! |
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| 16 | |
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| 17 | module radiation_gas_constants |
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| 18 | |
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| 19 | use parkind1, only : jprb |
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| 20 | |
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| 21 | implicit none |
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| 22 | |
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| 23 | public |
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| 24 | |
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| 25 | ! Gas codes; these indices match those of RRTM-LW up to 7 |
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| 26 | integer, parameter :: IGasNotPresent = 0 |
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| 27 | integer, parameter :: IH2O = 1 |
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| 28 | integer, parameter :: ICO2 = 2 |
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| 29 | integer, parameter :: IO3 = 3 |
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| 30 | integer, parameter :: IN2O = 4 |
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| 31 | integer, parameter :: ICO = 5 |
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| 32 | integer, parameter :: ICH4 = 6 |
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| 33 | integer, parameter :: IO2 = 7 |
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| 34 | integer, parameter :: ICFC11 = 8 |
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| 35 | integer, parameter :: ICFC12 = 9 |
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| 36 | integer, parameter :: IHCFC22= 10 |
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| 37 | integer, parameter :: ICCl4 = 11 |
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| 38 | integer, parameter :: INO2 = 12 |
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| 39 | integer, parameter :: NMaxGases = 12 |
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| 40 | |
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| 41 | ! Molar masses (g mol-1) of dry air and the various gases above |
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| 42 | real(jprb), parameter :: AirMolarMass = 28.970_jprb |
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| 43 | real(jprb), parameter, dimension(0:NMaxGases) :: GasMolarMass = (/ & |
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| 44 | & 0.0_jprb, & ! Gas not present |
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| 45 | & 18.0152833_jprb, & ! H2O |
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| 46 | & 44.011_jprb, & ! CO2 |
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| 47 | & 47.9982_jprb, & ! O3 |
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| 48 | & 44.013_jprb, & ! N2O |
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| 49 | & 28.0101_jprb, & ! CO |
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| 50 | & 16.043_jprb, & ! CH4 |
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| 51 | & 31.9988_jprb, & ! O2 |
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| 52 | & 137.3686_jprb, & ! CFC11 |
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| 53 | & 120.914_jprb, & ! CFC12 |
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| 54 | & 86.469_jprb, & ! HCFC22 |
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| 55 | & 153.823_jprb, & ! CCl4 |
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| 56 | & 46.0055_jprb /) ! NO2 |
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| 57 | |
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| 58 | ! The corresponding names of the gases in upper and lower case, used |
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| 59 | ! for reading variables from the input file |
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| 60 | character*6, dimension(NMaxGases), parameter :: GasName & |
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| 61 | & = (/'H2O ','CO2 ','O3 ','N2O ','CO ','CH4 ', & |
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| 62 | & 'O2 ','CFC11 ','CFC12 ','HCFC22','CCl4 ','NO2 '/) |
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| 63 | character*6, dimension(NMaxGases), parameter :: GasLowerCaseName & |
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| 64 | & = (/'h2o ','co2 ','o3 ','n2o ','co ','ch4 ', & |
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| 65 | & 'o2 ','cfc11 ','cfc12 ','hcfc22','ccl4 ','no2 '/) |
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| 66 | |
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| 67 | end module radiation_gas_constants |
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