Vol. 12, issue 03, article # 15

pdf Belan B. D., Nalivaiko A. A., Sakerin S. M., Sklyadneva T. K. Specific features of many-year variability of solar radiation characteristics over West Siberian region. // Atmospheric and oceanic optics. 1999. V. 12. No. 03. P. 265-272.
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Abstract:

In this paper we discuss some regularities of the variation of incoming radiation characteristics based on the data of actinometric stations nearest to Tomsk. It is shown that the general feature of the period from 1959 to 1994 for the region under study is the tendencies toward the increase of the sunshine duration and scattered radiation as well as toward a decrease in the direct solar radiation influx. Together with the trend component, typical is the presence of low-frequency fluctuations due to the change of cloudiness regime. Some individual features of the many-year variability, statistical characteristics, and estimation calculations performed indicate in favor of a gradual increase of the aerosol turbidity of the atmosphere in the region under study (more clearly, in its southern part) and, furthermore, of the gaseous pollution in two regions.