REGIONAL FEATURES OF THE WARM SEASON TEMPERATURE REGIME WITHIN THE CONTINENTAL PART OF THE RUSSIAN ARCTIC DURING THE LAST 500 YEARS

• Published in: Izvestiya Rossiiskoi Akademii Nauk Seriya Geograficheskaya
• Main Authors: Yu. M. Kononov, Ю. М. Кононов
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya 2018
• Subjects: Северная Евразия; tree-ring chronologies; Little Ice Age; global warming; Northern Eurasia; древесно-кольцевые хронологии; малый ледниковый период; глобальное потепление; Antarctic and Alpine Research; Arctic; Arctic and Alpine Research; Climate change; Global warming; kola peninsula; lena river; Taimyr; Yamal Peninsula; Таймыр; Ямал
• Online Access: https://izvestia.igras.ru/jour/article/view/685; https://doi.org/10.7868/S258755661802005X

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. Палеоклиматические реконструкции выполнены по древесно-кольцевым хронологиям, данные которых находятся в открытом доступе (International tree ring data bank). Для анализа были выбраны хронологии, располагающиеся в непосредственной близости от северной границы леса, где климатический сигнал наиболее выражен. Индивидуальные древесно-кольцевые хронологии объединены в пять региональных (Кольский п-ов, п-ов Ямал, п-ов Таймыр, устье р. Лена, устье р. Индигирка). Во всех исследуемых регионах летние температуры воздуха на протяжении XX в. были выше средних значений за последние 500 ...