Impact of Climate Change on the Ground Thermal Regime in the Lower Lena Region, Arctic Central Siberia

Pavel Konstantinov (), Nikolai Basharin, Alexander Fedorov, Yoshihiro Iijima, Varvara Andreeva, Valerii Semenov and Nikolai Vasiliev
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Pavel Konstantinov: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia
Nikolai Basharin: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia
Alexander Fedorov: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia
Yoshihiro Iijima: Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu 514-8507, Japan
Varvara Andreeva: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia
Valerii Semenov: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia
Nikolai Vasiliev: Permafrost Landscapes Laboratory, Melnikov Permafrost Institute of the Siberian Branch of the RAS, 677010 Yakutsk, Russia

Land, 2022, vol. 12, issue 1, 1-13

Abstract: This paper presents the results of 30 years of permafrost thermal monitoring in the Tiksi area in the eastern Russian Arctic. At a stone ridge site, the mean annual temperatures in the upper 30 m of the ground have increased by 1–2.4 °C compared to the first years of observations, with trends of °C/yr. At the same time, its change was uneven. In the last 20 years, the rate of increase has increased compared with the first decade of observations. At wet tundra sites in the foothill plain, the mean annual temperatures at the top of permafrost have increased by 2.4–2.6 °C between 2005 and 2022 at rates of 0.11–0.15 °C/yr, and the active layer thicknesses have increased at rates of 0.05–0.41 cm/yr.

Keywords: climate change; permafrost; air temperature; ground temperature; active layer thickness (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
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