Annual cycle in variability of aerosol microstructure parameters determined from solar photometry data
V. V. Veretennikov, S. S. Men’shchikova
V. E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: aerosol microstructure, aerosol optical depth, inverse problem
Abstract
Special features of the annual behavior of aerosol microstructure parameters are considered. The aerosol parameters are retrieved by solving the solar photometry inverse problem. Average hourly measurements of aerosol optical depth in the spectral range 0.37–4 mm in Tomsk are used as the input data for the inversion. The experimental spectra are processed using the algorithm based on the integral distribution method. The volume concentration, total geometric cross–section, and mean particle radius are calculated using the retrieved integral size distribution function. In particular, it is established that the volume concentration is minimal in November and maximal in April. Statistical relationships between the aerosol optical depth and retrieved microstructure parameters were also studied.
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