albedo atmosphere_transmissivity CalovGreveIntegrand DEBMSimplePointwise distance_factor_paleo distance_factor_present_day eccentricity hour_angle insolation insolation_diagnostic m_albedo_max m_albedo_min m_albedo_ocean m_albedo_slope m_constant_eccentricity m_constant_obliquity m_constant_perihelion_longitude m_eccentricity m_ice_density m_L m_melt_c1 m_melt_c2 m_melt_threshold_temp m_obliquity m_paleo m_perihelion_longitude m_phi m_positive_threshold_temperature m_refreeze_fraction m_refreeze_ice_melt m_solar_constant m_time m_transmissivity_intercept m_transmissivity_slope m_water_density melt obliquity orbital_parameters perihelion_longitude solar_declination_paleo solar_declination_present_day solar_longitude step

solar_longitude() double pism::surface::DEBMSimplePointwise::solar_longitude ( double  year_fraction, double  eccentricity, double  perihelion_longitude  ) static Solar longitude (radians) at current time in the year. Parameters [in] year_fraction year fraction (between 0 and 1) [in] eccentricity eccentricity of the earth’s orbit (no units) [in] perihelion_longitude perihelion longitude (radians) in the geocentric ecliptic coordinate system Implements equation A2 in Zeitz et al. or equivalent equations in Berger1978 (section 3). Definition at line 102 of file DEBMSimplePointwise.cc. References eccentricity(), and perihelion_longitude(). Referenced by orbital_parameters(), and solar_declination_paleo().