, Volume 45, Issue 4, pp 456-466
Date: 04 Sep 2009

Variations in the atmospheric aerosol optical depth from the data obtained at the Russian actinometric network in 1976–2006

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Abstract

The results of an analysis of variations in the optical depth of a vertical atmospheric column on the basis of a 30-year (1976–2006) series of observations obtained by the Russian actinometric network are generalized. This analysis is based on the Atmosphere Transparency special-purpose database created at the Voeikov Main Geophysical Observatory on the basis of observational data obtained at the actinometric stations of the Russian Hydrometeorological Research Center. The general regularities of spatial variations in the atmospheric optical depth (AOD) over Russia are revealed: there is a monotonic decrease from the southwest to the northeast, with localized areas having different aerosol loads due to the global and regional factors of their formation. A spatiotemporal structure of the anomalies of AOD annual values within the time interval under consideration, including the El Chichon (1982) and Pinatubo (1991) eruptions, is studied.

Original Russian Text © I.N. Plakhina, N.V. Pankratova, E.L. Makhotkina, 2009, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2009, Vol. 45, No. 4, pp. 489–500.