Influence of Climate Change on the Thermal Condition of Yakutia’s Permafrost Landscapes (Chabyda Station)

Stepan P Varlamov, Yuri B Skachkov and Pavel N Skryabin
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Stepan P Varlamov: Melnikov Permafrost Institute SB RAS, 677010 Yakutsk, Russia
Yuri B Skachkov: Melnikov Permafrost Institute SB RAS, 677010 Yakutsk, Russia
Pavel N Skryabin: Melnikov Permafrost Institute SB RAS, 677010 Yakutsk, Russia

Land, 2020, vol. 9, issue 5, 1-19

Abstract: This paper presents the results of 39 years of observations conducted at the Chabyda station to monitor the thermal state of permafrost landscapes under current climatic warming. The analysis of long-term records from weather stations in the region has revealed one of the highest increasing trends in mean annual air temperature in northern Russia. The partitioning of the energy balance in different landscape units within the study area has been analyzed. Quantitative relationships in the long-term variability of ground thermal parameters, such as the ground temperature at the bottom of the active layer and seasonal thaw depth, have been established. The ground temperature dynamics within the depth of zero annual amplitude indicates that both warm and cold permafrost are thermally stable. The short-term variability of the snow accumulation regime is the main factor controlling the thermal state of the ground in permafrost landscapes. The depth of seasonal thaw is characterized by low interannual variability and exhibits little response to climate warming, with no statistically significant increasing or decreasing trend. The results of the ground thermal monitoring can be extended to similar landscapes in the region, providing a reliable basis for predicting heat transfer in natural, undisturbed landscapes.

Keywords: seasonal thaw depth; climate change; energy balance; monitoring; permafrost response; ground temperature (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:9:y:2020:i:5:p:132-:d:351657

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