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

distance_factor_paleo() double pism::surface::DEBMSimplePointwise::distance_factor_paleo ( double  eccentricity, double  true_anomaly  ) static The unit-less factor scaling top of atmosphere insolation according to the earth's distance from the sun. This is the "paleo" version used when the trigonometric expansion (equation 2.2.9 in Liou 2002) is not valid. Implements equation A1 in Zeitz et al. See also equation 2.2.5 from Liou (2002). This quantity is equal to 1 / R^2, where R is the sun-earth distance in units of the semi-major axis of the earth's orbit. Parameters [in] eccentricity eccentricity of the earth's orbit [in] true_anomaly true anomaly of the earth in the heliocentric ecliptic coordinate system Definition at line 174 of file DEBMSimplePointwise.cc. References eccentricity(), pism::RuntimeError::formatted(), and PISM_ERROR_LOCATION. Referenced by orbital_parameters().