|
|
- /*
- * Copyright (C) 2021 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #ifndef ANTKEEPER_PHYSICS_GAS_OZONE_HPP
- #define ANTKEEPER_PHYSICS_GAS_OZONE_HPP
-
- namespace physics {
- namespace gas {
-
- /// Ozone-related constants and functions.
- namespace ozone {
-
- /**
- * Cross section of ozone at wavelength 680nm and temperature 293K, in m-2/molecule.
- *
- * @see https://www.iup.uni-bremen.de/gruppen/molspec/databases/referencespectra/o3spectra2011/index.html
- */
- template <class T>
- constexpr T cross_section_680nm_293k = T(1.36820899679147e-25);
-
- /**
- * Cross section of ozone at wavelength 550nm and temperature 293K, in m-2/molecule.
- *
- * @see https://www.iup.uni-bremen.de/gruppen/molspec/databases/referencespectra/o3spectra2011/index.html
- */
- template <class T>
- constexpr T cross_section_550nm_293k = T(3.31405330400124e-25);
-
- /**
- * Cross section of ozone at wavelength 550nm and temperature 293K, in m-2/molecule.
- *
- * @see https://www.iup.uni-bremen.de/gruppen/molspec/databases/referencespectra/o3spectra2011/index.html
- */
- template <class T>
- constexpr T cross_section_440nm_293k = T(1.36017282525383e-26);
-
- /**
- * Calculates an ozone absorption coefficient (wavelength-dependent).
- *
- * @param cross_section Ozone cross section of a wavelength, in m-2/molecule.
- * @param n Molecular number density of standard air, in molecules/m-3.
- * @param c Concentration of ozone in the atmosphere, unitless.
- *
- * @return Ozone absorption coefficient.
- *
- * @see https://skyrenderer.blogspot.com/2012/10/ozone-absorption.html
- */
- template <class T>
- T absorption(T cross_section, T n, T c)
- {
- return cross_section * n * c;
- }
-
- } // namespace ozone
-
- } // namespace gas
- } // namespace physics
-
- #endif // ANTKEEPER_PHYSICS_GAS_OZONE_HPP
|