pvlib.atmosphere.angstrom_alpha

pvlib.atmosphere.angstrom_alpha(aod1, lambda1, aod2, lambda2)

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]

See also

pvlib.atmosphere.angstrom_aod_at_lambda