d4/d72/_solar_radiation_8hpp_source.html

// SPDX-License-Identifier: Apache-2.0


#pragma once

#include "../../../hydrology/Radiation.hpp"

// Compatibility names: heat and surface hydrology use the same solar kernel.

namespace openswmm::transport::heat {

using climate::SolarPosition;

using climate::kSolarConstant;

using climate::kStdPressureMb;

using climate::solarPosition;

using climate::airMass;

using climate::pressureFromElevation;

using climate::birdClearSkyGHI;

using climate::cloudShortwaveFactor;

using climate::cloudLongwaveFactor;

using climate::updateSolarForcing;

}

Radiation.hpp
Solar geometry, atmospheric radiation and interval weather forcing.

openswmm::climate::cloudShortwaveFactor
double cloudShortwaveFactor(double cloud_fraction, double k, double n) noexcept
Compute the cloud attenuation multiplier max(0,1-k*C^n).
Definition Radiation.cpp:206

openswmm::climate::updateSolarForcing
void updateSolarForcing(SimulationContext &ctx, double seconds)
Update shared heat shortwave/cloud forcing with mesh radiation disabled.
Definition Radiation.cpp:230

openswmm::climate::airMass
double airMass(double zenith_deg) noexcept
Compute Kasten-Young relative optical air mass.
Definition Radiation.cpp:122

openswmm::climate::pressureFromElevation
double pressureFromElevation(double elevation_m) noexcept
Estimate standard-atmosphere station pressure from elevation.
Definition Radiation.cpp:135

openswmm::climate::birdClearSkyGHI
double birdClearSkyGHI(const SolarPosition &pos, double pressure_mb, const SolarConfig &cfg) noexcept
Estimate clear-sky global horizontal irradiance with Bird-Hulstrom terms.
Definition Radiation.cpp:140

openswmm::climate::solarPosition
SolarPosition solarPosition(int day_of_year, double hour_local, double lat_deg, double lon_deg, double tz_hours) noexcept
Compute Spencer/NOAA sun geometry at a local civil-clock instant.
Definition Radiation.cpp:57

openswmm::climate::kStdPressureMb
constexpr double kStdPressureMb
Sea-level standard pressure, millibars — Bird's pressure reference.
Definition Radiation.hpp:121

openswmm::climate::cloudLongwaveFactor
double cloudLongwaveFactor(double cloud_fraction, double k_lw) noexcept
Compute the cloud atmospheric-emissivity multiplier 1+k_lw*C^2.
Definition Radiation.cpp:215

openswmm::climate::kSolarConstant
constexpr double kSolarConstant
Solar constant, W/m² (Bird & Hulstrom 1981; WMO 1982).
Definition Radiation.hpp:118

openswmm::transport::heat
Definition BedExchange.cpp:39