Retrieval of the aerosol extinction coefficients on a long near-ground path from data on the aerosol parameters in a local volume
Yu.A. Pkhalagov, V.N. Uzhegov, V.S. Kozlov, M.V. Panchenko, S.A. Terpugova, E.P. Yausheva
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
pkhalagov@iao.ru
Keywords: spectral dependence, aerosol extinction coefficients, absorption and scattering of optical radiation
Abstract
A two-parameter model is presented in this paper, which allows retrieving the aerosol extinction coefficients in the visible and IR wavelength ranges on a horizontal near-ground path using a small number of parameters obtained in a local volume of air. The input parameters of the model are the aerosol angular scattering coefficient at an angle of 45° at a wavelength of 0.52 mm and the mass concentration of crystal carbon in aerosol particles. The spectral dependence of the single scattering albedo in the wavelength range 0.4–3.9 mm is estimated.
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