New metrics and evidence are presented that support a linkage between rapid Arctic warming, relative to Northern hemisphere mid-latitudes, and more frequent high-amplitude (wavy) jet-stream configurations that favor persistent weather patterns. We find robust relationships among seasonal and regional patterns of weaker poleward thickness gradients, weaker zonal upper-level winds, and a more meridional flow direction. These results suggest that as the Arctic continues to warm faster than elsewhere in response to rising greenhouse-gas concentrations, the frequency of extreme weather events caused by persistent jet-stream patterns will increase.
Evidence for a wavier jet stream in response to rapid Arctic warming
Published 2015 in Environmental Research Letters
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- Publication year
2015
- Venue
Environmental Research Letters
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Unknown publication date
- Fields of study
Physics, Environmental Science
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