Abstract
The paper focuses on the application of certain changes in climatic characteristics of cold season for 1950–2006 on the territory of Russia. We consider the duration of the heating period and its intensity, expressed by an index of fuel consumption. There is a significant reduction in the duration of the heating period, these changes are statistically significant on the half of the territory of Russia. Reduction of fuel consumption index is quite large and statistically significant at the whole territory of the country, except for few small-sized areas. To study the characteristics of the heating season,we mark the subjects of the Russian Federation, virtually or completely moving to the next grade ofheating season parameters in the modern warming (1989–2006) compared to the reference period (1950–1980). The correlation between the index of fuel consumption and atmospheric circulation indices NAO, PNA and SCAND for January is calculated. We may assume that the immediate cause of the changes in climatic parameters of Januaryduring the period of1950–2006 is change of atmospheric circulation regime in the mid-1970s.
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