Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea
Recent Arctic changes are likely due to coupled Arctic amplification mechanisms with increased linkage between Arctic climate and sub-Arctic weather. Historically, sea ice grew rapidly in autumn, a strong negative radiative feedback. But increased sea-ice mobility, loss of multi-year sea ice, enhanc...
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ftjpolarres:oai:journals.openacademia.net:article/3059 2023-05-15T14:32:22+02:00 Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea Overland, James E. Wood, Kevin R. Wang, Muyin 2011-12-29 application/pdf text/html application/epub+zip text/xml https://polarresearch.net/index.php/polar/article/view/3059 https://doi.org/10.3402/polar.v30i0.15787 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3059/pdf_1 https://polarresearch.net/index.php/polar/article/view/3059/html https://polarresearch.net/index.php/polar/article/view/3059/6944 https://polarresearch.net/index.php/polar/article/view/3059/xml https://polarresearch.net/index.php/polar/article/view/3059 doi:10.3402/polar.v30i0.15787 Copyright (c) 2018 Polar Research Polar Research; Vol 30 (2011) 1751-8369 Climate change sea ice atmospheric circulation North Atlantic Oscillation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2011 ftjpolarres https://doi.org/10.3402/polar.v30i0.15787 2021-11-11T19:13:37Z Recent Arctic changes are likely due to coupled Arctic amplification mechanisms with increased linkage between Arctic climate and sub-Arctic weather. Historically, sea ice grew rapidly in autumn, a strong negative radiative feedback. But increased sea-ice mobility, loss of multi-year sea ice, enhanced heat storage in newly sea ice-free ocean areas, and modified wind fields form connected positive feedback processes. One-way shifts in the Arctic system are sensitive to the combination of episodic intrinsic atmospheric and ocean variability and persistent increasing greenhouse gases. Winter 2009/10 and December 2010 showed a unique connectivity between the Arctic and more southern weather patterns when the typical polar vortex was replaced by high geopotential heights over the central Arctic and low heights over mid-latitudes that resulted in record snow and low temperatures, a warm Arctic - cold continents pattern. The negative value of the winter (DJF 2009/10) North Atlantic Oscillation (NAO) index associated with enhanced meridional winds was the lowest observed value since the beginning of the record in 1865. Wind patterns in December 2007 and 2008 also show an impact of warmer Arctic temperatures. A tendency for higher geopotential heights over the Arctic and enhanced meridional winds are physically consistent with continued loss of sea ice over the next 40 years. A major challenge is to understand the interaction of Arctic changes with climate patterns such as the NAO, Pacific North American and El Niño-Southern Oscillation. Keywords: Climate change; sea ice; atmospheric circulation; North Atlantic Oscillation (Published: 29 December 2011) Citation: Polar Research 2011, 30, 15787, DOI:10.3402/polar.v30i0.15787 Article in Journal/Newspaper Arctic Climate change North Atlantic North Atlantic oscillation Polar Research Sea ice Polar Research (E-Journal) Arctic Pacific Polar Research 30 1 15787 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Climate change sea ice atmospheric circulation North Atlantic Oscillation |
spellingShingle |
Climate change sea ice atmospheric circulation North Atlantic Oscillation Overland, James E. Wood, Kevin R. Wang, Muyin Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
topic_facet |
Climate change sea ice atmospheric circulation North Atlantic Oscillation |
description |
Recent Arctic changes are likely due to coupled Arctic amplification mechanisms with increased linkage between Arctic climate and sub-Arctic weather. Historically, sea ice grew rapidly in autumn, a strong negative radiative feedback. But increased sea-ice mobility, loss of multi-year sea ice, enhanced heat storage in newly sea ice-free ocean areas, and modified wind fields form connected positive feedback processes. One-way shifts in the Arctic system are sensitive to the combination of episodic intrinsic atmospheric and ocean variability and persistent increasing greenhouse gases. Winter 2009/10 and December 2010 showed a unique connectivity between the Arctic and more southern weather patterns when the typical polar vortex was replaced by high geopotential heights over the central Arctic and low heights over mid-latitudes that resulted in record snow and low temperatures, a warm Arctic - cold continents pattern. The negative value of the winter (DJF 2009/10) North Atlantic Oscillation (NAO) index associated with enhanced meridional winds was the lowest observed value since the beginning of the record in 1865. Wind patterns in December 2007 and 2008 also show an impact of warmer Arctic temperatures. A tendency for higher geopotential heights over the Arctic and enhanced meridional winds are physically consistent with continued loss of sea ice over the next 40 years. A major challenge is to understand the interaction of Arctic changes with climate patterns such as the NAO, Pacific North American and El Niño-Southern Oscillation. Keywords: Climate change; sea ice; atmospheric circulation; North Atlantic Oscillation (Published: 29 December 2011) Citation: Polar Research 2011, 30, 15787, DOI:10.3402/polar.v30i0.15787 |
format |
Article in Journal/Newspaper |
author |
Overland, James E. Wood, Kevin R. Wang, Muyin |
author_facet |
Overland, James E. Wood, Kevin R. Wang, Muyin |
author_sort |
Overland, James E. |
title |
Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
title_short |
Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
title_full |
Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
title_fullStr |
Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
title_full_unstemmed |
Warm Arctic - cold continents: climate impacts of the newly open Arctic Sea |
title_sort |
warm arctic - cold continents: climate impacts of the newly open arctic sea |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://polarresearch.net/index.php/polar/article/view/3059 https://doi.org/10.3402/polar.v30i0.15787 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Climate change North Atlantic North Atlantic oscillation Polar Research Sea ice |
genre_facet |
Arctic Climate change North Atlantic North Atlantic oscillation Polar Research Sea ice |
op_source |
Polar Research; Vol 30 (2011) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3059/pdf_1 https://polarresearch.net/index.php/polar/article/view/3059/html https://polarresearch.net/index.php/polar/article/view/3059/6944 https://polarresearch.net/index.php/polar/article/view/3059/xml https://polarresearch.net/index.php/polar/article/view/3059 doi:10.3402/polar.v30i0.15787 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v30i0.15787 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
15787 |
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1766305793758461952 |