Emerging Climate Change Signals in Atmospheric Circulation

The circulation response to climate change shapes regional climate and extremes. Over the last decade an increasing number of atmospheric circulation signals have been documented, with some attributed to human activities. The circulation signals represent an exciting opportunity for improving our un...

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Bibliographic Details
Published in:AGU advances 2024-12, Vol.5 (6), p.n/a
Main Authors: Shaw, T. A., Arblaster, J. M., Birner, T., Butler, A. H., Domeisen, D. I. V., Garfinkel, C. I., Garny, H., Grise, K. M., Karpechko, A. Yu
Format: Article
Language:English
Subjects:
Aerosols
Atmospheric circulation
atmospheric dynamics
Climate change
Decades
Emissions
Energy
Greenhouse gases
Precipitation
Radiation
regional climate change
Regions
Sea level
Stratosphere
Trends
Wind
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Summary:The circulation response to climate change shapes regional climate and extremes. Over the last decade an increasing number of atmospheric circulation signals have been documented, with some attributed to human activities. The circulation signals represent an exciting opportunity for improving our understanding of dynamical mechanisms, testing our theories and reducing uncertainties. The signals have also presented puzzles that represent an opportunity for better understanding the circulation response to climate change, its contribution to climate extremes, interactions with moisture, and connection to thermodynamic discrepancies. The next decade is likely to be a golden age for dynamics with many advances possible. Plain Language Summary Regional climate change signals in atmospheric circulation (wind and pressure) have been documented in many regions. Some of the signals are expected and have been attributed to human activities whereas others are not. The next decade represents an exciting time to better understand the dynamical mechanisms underlying these signals and their relationship to thermodynamic signals with the goal of improving regional climate prediction. Key Points Long term trends in atmospheric circulation are emerging across different regions and seasons with some attributed to human activities Many circulation signals have been linked to dynamical mechanisms involving thermodynamic changes, although discrepancies remain Emerging signals in combination with new tools promise considerable progress in understanding the dynamical response in the coming decade
ISSN:2576-604X
2576-604X
DOI:10.1029/2024AV001297