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Updated: May 21, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
Teleconnection from Arctic warming suppresses long-term warming in central Eurasia
Hainan Gong1, Lin Wang1, James A Screen2
1Key Laboratory of Earth System Numerical Modeling and Application and Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China.
Rapid Arctic warming, especially in the Barents-Kara Sea (BKS), influences Eurasian winter climate. While internal variability dominates short-term cooling, BKS warming impacts multidecadal Eurasian temperatures.
Area of Science:
- Climate Science
- Atmospheric Science
- Arctic Research
Background:
- The influence of Arctic warming on mid-latitude weather patterns is a significant area of climate research.
- The Barents-Kara Sea (BKS) region is experiencing rapid warming, prompting investigation into its climatic impacts.
Purpose of the Study:
- To disentangle the effects of internal atmospheric dynamics from thermodynamically forced Barents-Kara Sea warming on Eurasian winter climate.
- To quantify the contributions of different factors to observed Eurasian cooling trends.
Main Methods:
- Utilized an extended dynamical adjustment method based solely on observational data.
- Separated the influences of internal atmospheric variability and Barents-Kara Sea warming on atmospheric circulation.
Main Results:
- Observed Eurasian cooling is driven by both internal atmospheric variability and Barents-Kara Sea warming.
- Internal variability, particularly the Arctic Oscillation, was the primary driver of cooling from 1991-2012.
- Barents-Kara Sea warming has a weaker interannual/interdecadal impact but significantly affects multidecadal scales, contributing to Eurasia's 'warming hole' (1980-2022).
Conclusions:
- A weak but non-negligible Eurasian cooling response to Barents-Kara Sea warming exists on multidecadal timescales.
- Findings enhance understanding of the causal links between Arctic changes and mid-latitude climate variability.
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