pvlib.atmosphere.angstrom_alpha¶
-
pvlib.atmosphere.
angstrom_alpha
(aod1, lambda1, aod2, lambda2)[source]¶ Calculate Angstrom alpha exponent.
Parameters: - aod1 (numeric) – Aerosol optical depth at wavelength
lambda1
. [unitless] - lambda1 (numeric) – Wavelength corresponding to
aod1
. [nm] - aod2 (numeric) – Aerosol optical depth at wavelength
lambda2
. [unitless] - lambda2 (numeric) – Wavelength corresponding to
aod2
. [nm]
Returns: alpha (numeric) – Angstrom \(\alpha\) exponent for wavelength in
(lambda1, lambda2)
. [unitless]- aod1 (numeric) – Aerosol optical depth at wavelength