Abstract

This paper describes the inversion procedures by including multiple scattering contributions to almucantar radiance in the solar aureole region and discusses the retrieved size distribution results by comparing them with ground truth measurements. The agreement between the two sets of results is good and provides yet another experimental validation to show that the solar aureole technique is a simple, practical, and accurate method for obtaining the columnar size distribution of atmospheric aerosols. Comparisons between the results obtained by the two approximations—single and multiple scattering—show that the size distribution retrievals obtained by the latter are more accurate than those obtained by the former. Retrieved estimates of surface albedo show that even though surface albedo cannot be accurately determined from solar aureole measurements, these measurements can provide reasonable estimates. A recommendation is made for the use of solar aureole measurements from satellites to retrieve the size distribution and concentration of stratospheric and upper tropospheric aerosols.

© 1982 Optical Society of America

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Aerosol size distributions: remote determination from air-borne measurements of the solar aureole

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