REGIONAL FEATURES OF THE WARM SEASON TEMPERATURE REGIME WITHIN THE CONTINENTAL PART OF THE RUSSIAN ARCTIC DURING THE LAST 500 YEARS
https://doi.org/10.7868/S258755661802005X
Abstract
Paleoclimatic reconstruction carried out using tree-ring chronology, whose data are reposited in the International Tree-Ring Data Bank (ITRDB). Chronologies are located in the immediate vicinity of the northern latitudinal timberline, where the climatic signal is most represented. Individual tree-ring chronologies are combined into five regional (Kola Peninsula, Yamal Peninsula, Taimyr Peninsula, Lena River mouth, Indigirka River mouth). In all the study regions summer temperatures during the 20th century have been higher than the average value for 500 years. However, in some areas (Kola Peninsula, the mouth of the rivers Lena and Indigirka) for 16–19th centuries there were short warming periods (20–30 years), the summer air temperatures of which can be compared with the modern. And in the Lena River mouth the summer temperature at the beginning of the 18th century were even higher than in the instrumental period. In addition, in these areas, speed of increasing temperatures in the 20th century is not higher than in pre-industrial period. Comparison of climate change with the dynamics of solar activity showed that the Maunder minimum is clearly evidenced only in the west of Eurasia (Kola Peninsula). The Dalton minimum is fixed in all investigated areas. In general, it can be said that such a climate-forming factor as solar activity was not dominant in the temperature regime of warm seasons in the north of Eurasia for the past 500 years.
About the Author
Yu. M. Kononov
Institute of Geography, Russian Academy of Sciences
Russian Federation
Russian Federation
Yury M. Kononov
Moscow
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Graphical Abstract
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1. Regional summer air temperature reconstruction and solar activity | |
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| Type | Исследовательские инструменты | |
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- Summer temperatures in Northern Eurasia over the last 500 years had a common positive trend.
- The warming rates in different decades of the pre-instrumental period were comparable with the current rates.
- For the last 500 years sun was not a dominant climate-forming factor for summer temperatures in Northern Eurasia.
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For citations:
Kononov Yu.M. REGIONAL FEATURES OF THE WARM SEASON TEMPERATURE REGIME WITHIN THE CONTINENTAL PART OF THE RUSSIAN ARCTIC DURING THE LAST 500 YEARS. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2018;(2):48-58. (In Russ.) https://doi.org/10.7868/S258755661802005X
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