Study of the relationship between Angstrom's wavelength exponent and Junge particle size distribution exponent.

Abstract

The volume extinction coefficient produced by aerosol particles at wavelength lambda is generally proportional to lambda- alpha as found by Angstrom. On the other hand, particle size spectra frequently give a particle number density approximately proportional to the inverse of the radius power with exponent nu, as found by Junge. On the basis of computations made using a very accurate Mie extinction algorithm a study of the relationship curve between exponents alpha and nu is made for aerosol particle polydispersions of different radius intervals and for different refractive index values.-from Authors