0.4.1
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StandardAtmosphere.hpp
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1// This file is part of INSTINCT, the INS Toolkit for Integrated
2// Navigation Concepts and Training by the Institute of Navigation of
3// the University of Stuttgart, Germany.
4//
5// This Source Code Form is subject to the terms of the Mozilla Public
6// License, v. 2.0. If a copy of the MPL was not distributed with this
7// file, You can obtain one at https://mozilla.org/MPL/2.0/.
8
9/// @file StandardAtmosphere.hpp
10/// @brief Standard Atmosphere temperature model
11/// @author T. Topp (topp@ins.uni-stuttgart.de)
12/// @date 2023-01-31
13
14#pragma once
15
16namespace NAV
17{
18
19/// @brief Calculates the standard atmosphere absolute temperature
20/// @param[in] altitudeMSL Geodetic height above MSL (mean sea level)
21/// @return The absolute temperature in [K]
22/// @note See \cite RTKLIB RTKLIB ch. E.5, eq. E.5.2, p. 149
23[[nodiscard]] constexpr double calcAbsoluteTemperatureStAtm(double altitudeMSL)
24{
25 return 15.0 - 6.5e-3 * altitudeMSL + 273.15;
26}
27
28} // namespace NAV
constexpr double calcAbsoluteTemperatureStAtm(double altitudeMSL)
Calculates the standard atmosphere absolute temperature.