Retrieval of microstructure parameters of coarse aerosol using their regression relationships with spectral extinction of light in the IR
V.V. Veretennikov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: аэрозольная оптическая толщина, микроструктура аэрозоля, корреляция, регрессия, aerosol optical depth, aerosol microstructure, correlation, regression
Abstract
Possibilities of estimating the microstructure parameters of atmospheric aerosol from regression equations that describe their relationships with spectral measurements of the aerosol optical depth (AOD) are considered. Special attention is given to the volume concentration, total cross section, and average radius of coarse aerosol particles. The urgency of this problem is stipulated by large errors in the retrieval of the above-indicated parameters in the case of direct АОD retrieval from measurements in an insufficiently wide spectral range. The coefficients of simple and multiple linear regressions are estimated and the results of retrieval on their basis of coarse aerosol parameters from data of solar photometry in Tomsk are presented.
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