Spectrum#

`spectrum.spectrl2`(apparent_zenith, aoi, ...)	Estimate spectral irradiance using the Bird Simple Spectral Model (SPECTRL2).
`spectrum.get_example_spectral_response`([...])	Generate a generic smooth spectral response (SR) for tests and experiments.
`spectrum.get_am15g`([wavelength])	Read the ASTM G173-03 AM1.5 global spectrum on a 37-degree tilted surface, optionally interpolated to the specified wavelength(s).
`spectrum.calc_spectral_mismatch_field`(sr, e_sun)	Calculate spectral mismatch between a test device and broadband reference device under specified solar spectral irradiance conditions.
`spectrum.spectral_factor_caballero`(...[, ...])	Estimate a technology-specific spectral mismatch modifier from airmass, aerosol optical depth, and atmospheric precipitable water, using the Caballero model.
`spectrum.spectral_factor_firstsolar`(...[, ...])	Spectral mismatch modifier based on precipitable water and absolute (pressure-adjusted) airmass.
`spectrum.spectral_factor_sapm`(...)	Calculates the SAPM spectral loss coefficient, F1.

pvlib.shading.projected_solar_zenith_angle

pvlib.spectrum.spectrl2