Variations in the atmospheric aerosol optical depth from the data obtained at the Russian actinometric network in 1976–2006 |
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| Authors: | I N Plakhina N V Pankratova E L Makhotkina |
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| Institution: | 1.A.M. Obukhov Institute of Atmospheric Physics,Russian Academy of Sciences,Moscow,Russia;2.Voeikov Main Geophysical Observatory,St. Petersburg,Russia |
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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. |
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