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Abstract. The primary objective of this complex aerosol experiment was the measurement of microphysical, chemical, and optical properties of aerosol particles in the surface air layer and free atmosphere. The measurement data were used to retrieve the whole set of aerosol optical parameters, necessary for radiation calculations. Three measurement cycles were performed within the experiment during 2013: in spring, when the aerosol generation is maximal; in summer (July), when atmospheric boundary layer altitude and, hence, mixing layer altitude are maximal; and in late summer/early autumn, during the period of nucleation of secondary particles. Thus, independently obtained data on the optical, meteorological, and microphysical parameters of the atmosphere allow intercalibration and inter-complement of the data and thereby provide for qualitatively new information which explains the physical nature of the processes that form the vertical structure of the aerosol field.

We tested the methods for retrieving the aerosol single scattering albedo and scattering phase func tion (asymmetry factor), developed by the authors earlier, from measurements of clear sky radiance in the solar almucantar at the Tomsk station of the AERONET photometric network in [2003][2004][2005][2006][2007][2008][2009]. It is shown that, under conditions of strong atmospheric turbidity (fires), the results obtained using the suggested approach and the Dubovik-King algorithm agree well. Under typical summer conditions of Western Siberia, the aver age single scattering albedo in the blue and green wavelength regions are ~0.90-0.92 and close to those pre sented in the WCP and OPAC models for continental aerosol.