| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 water vapor model | ||
| 11 | /// @author T. Topp (topp@ins.uni-stuttgart.de) | ||
| 12 | /// @date 2023-01-31 | ||
| 13 | |||
| 14 | #pragma once | ||
| 15 | |||
| 16 | #include <gcem.hpp> | ||
| 17 | |||
| 18 | namespace NAV | ||
| 19 | { | ||
| 20 | |||
| 21 | /// @brief Calculates the standard atmosphere partial pressure of water vapor | ||
| 22 | /// @param[in] temp The absolute temperature in [K] | ||
| 23 | /// @param[in] humidity_rel The relative humidity | ||
| 24 | /// @return The partial pressure [hPa] of water vapor | ||
| 25 | /// @note See \cite RTKLIB RTKLIB ch. E.5, eq. E.5.3, p. 149 | ||
| 26 | 21942 | [[nodiscard]] constexpr double calcWaterVaporPartialPressureStAtm(double temp, double humidity_rel) | |
| 27 | { | ||
| 28 | 21942 | return 6.108 * gcem::exp((17.15 * temp - 4684.0) / (temp - 38.45)) * humidity_rel; | |
| 29 | } | ||
| 30 | |||
| 31 | } // namespace NAV | ||
| 32 |