Академическое издательство «Гео»

Keywords: extrema, air temperature, trend, recurrence, climate change, Irkutsk region.



GEOGRAPHY AND NATURAL RESOURCES, 2010, № 2, p. 63-69

Variation tendencies of annual extremes of ground-level air temperature across the territory of the Irkutsk region

E.A. Kochugova and D.A. Koshkin

A comparison is made of the variation tendencies of air temperature extremes for 1947–1976 and 1977–2006 across the territory of the Irkutsk region, based on long-term series of annual extreme air temperature values. Trends were obtained by approximating the initial series of extreme air temperature values by a first-degree polynomial. The study revealed the multifocal nature and the absence of latitudinal or submeridional patterns in the distribution of trends of maximum air temperature values as well as statistically significant trends of minimum air temperature values.

Keywords: extrema, air temperature, trend, recurrence, climate change, Irkutsk region.
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