Recent Arctic amplification and extreme mid-latitude weather
This is the author accepted manuscript. The final version is available from Nature via the DOI in this record. The Arctic region has warmed more than twice as fast as the global average — a phenomenon known as Arctic amplification. The rapid Arctic warming has contributed to dramatic melting of Arct...
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ftunivexeter:oai:ore.exeter.ac.uk:10871/20621 2023-05-15T14:33:13+02:00 Recent Arctic amplification and extreme mid-latitude weather Cohen, Judah Screen, James A. Furtado, Jason C. Barlow, Mathew Whittleston, David Coumou, Dim Francis, Jennifer Dethloff, Klaus Entekhabi, Dara Overland, James Jones, Justin 2014 http://hdl.handle.net/10871/20621 https://doi.org/10.1038/ngeo2234 en eng Nature Publishing Group http://www.nature.com/ngeo/journal/v7/n9/full/ngeo2234.html Vol. 7, Issue 9, pp. 627 - 637 doi:10.1038/ngeo2234 http://hdl.handle.net/10871/20621 1752-0894 1752-0908 Nature Geoscience Article 2014 ftunivexeter https://doi.org/10.1038/ngeo2234 2022-11-20T21:31:00Z This is the author accepted manuscript. The final version is available from Nature via the DOI in this record. The Arctic region has warmed more than twice as fast as the global average — a phenomenon known as Arctic amplification. The rapid Arctic warming has contributed to dramatic melting of Arctic sea ice and spring snow cover, at a pace greater than that simulated by climate models. These profound changes to the Arctic system have coincided with a period of ostensibly more frequent extreme weather events across the Northern Hemisphere mid-latitudes, including severe winters. The possibility of a link between Arctic change and mid-latitude weather has spurred research activities that reveal three potential dynamical pathways linking Arctic amplification to mid-latitude weather: changes in storm tracks, the jet stream, and planetary waves and their associated energy propagation. Through changes in these key atmospheric features, it is possible, in principle, for sea ice and snow cover to jointly influence mid-latitude weather. However, because of incomplete knowledge of how high-latitude climate change influences these phenomena, combined with sparse and short data records, and imperfect models, large uncertainties regarding the magnitude of such an influence remain. We conclude that improved process understanding, sustained and additional Arctic observations, and better coordinated modelling studies will be needed to advance our understanding of the influences on mid-latitude weather and extreme events. Article in Journal/Newspaper Arctic Climate change Sea ice University of Exeter: Open Research Exeter (ORE) Arctic Nature Geoscience 7 9 627 637 |
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This is the author accepted manuscript. The final version is available from Nature via the DOI in this record. The Arctic region has warmed more than twice as fast as the global average — a phenomenon known as Arctic amplification. The rapid Arctic warming has contributed to dramatic melting of Arctic sea ice and spring snow cover, at a pace greater than that simulated by climate models. These profound changes to the Arctic system have coincided with a period of ostensibly more frequent extreme weather events across the Northern Hemisphere mid-latitudes, including severe winters. The possibility of a link between Arctic change and mid-latitude weather has spurred research activities that reveal three potential dynamical pathways linking Arctic amplification to mid-latitude weather: changes in storm tracks, the jet stream, and planetary waves and their associated energy propagation. Through changes in these key atmospheric features, it is possible, in principle, for sea ice and snow cover to jointly influence mid-latitude weather. However, because of incomplete knowledge of how high-latitude climate change influences these phenomena, combined with sparse and short data records, and imperfect models, large uncertainties regarding the magnitude of such an influence remain. We conclude that improved process understanding, sustained and additional Arctic observations, and better coordinated modelling studies will be needed to advance our understanding of the influences on mid-latitude weather and extreme events. |
format |
Article in Journal/Newspaper |
author |
Cohen, Judah Screen, James A. Furtado, Jason C. Barlow, Mathew Whittleston, David Coumou, Dim Francis, Jennifer Dethloff, Klaus Entekhabi, Dara Overland, James Jones, Justin |
spellingShingle |
Cohen, Judah Screen, James A. Furtado, Jason C. Barlow, Mathew Whittleston, David Coumou, Dim Francis, Jennifer Dethloff, Klaus Entekhabi, Dara Overland, James Jones, Justin Recent Arctic amplification and extreme mid-latitude weather |
author_facet |
Cohen, Judah Screen, James A. Furtado, Jason C. Barlow, Mathew Whittleston, David Coumou, Dim Francis, Jennifer Dethloff, Klaus Entekhabi, Dara Overland, James Jones, Justin |
author_sort |
Cohen, Judah |
title |
Recent Arctic amplification and extreme mid-latitude weather |
title_short |
Recent Arctic amplification and extreme mid-latitude weather |
title_full |
Recent Arctic amplification and extreme mid-latitude weather |
title_fullStr |
Recent Arctic amplification and extreme mid-latitude weather |
title_full_unstemmed |
Recent Arctic amplification and extreme mid-latitude weather |
title_sort |
recent arctic amplification and extreme mid-latitude weather |
publisher |
Nature Publishing Group |
publishDate |
2014 |
url |
http://hdl.handle.net/10871/20621 https://doi.org/10.1038/ngeo2234 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Sea ice |
genre_facet |
Arctic Climate change Sea ice |
op_relation |
http://www.nature.com/ngeo/journal/v7/n9/full/ngeo2234.html Vol. 7, Issue 9, pp. 627 - 637 doi:10.1038/ngeo2234 http://hdl.handle.net/10871/20621 1752-0894 1752-0908 Nature Geoscience |
op_doi |
https://doi.org/10.1038/ngeo2234 |
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Nature Geoscience |
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