Arctic circulation regimes
Between 1948 and 1996, mean annual environmental parameters in the Arctic experienced a wellpronounced decadal variability with two basic circulation patterns: cyclonic and anticyclonic alternating at 5 to 7 year intervals. During cyclonic regimes, low sea-level atmospheric pressure (SLP) dominated...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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Format: | Article in Journal/Newspaper |
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2015
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Online Access: | https://hdl.handle.net/1983/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://research-information.bris.ac.uk/en/publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://doi.org/10.1098/rsta.2014.0160 https://research-information.bris.ac.uk/ws/files/53775755/reprint_Proc_Roy_Soc.pdf http://www.scopus.com/inward/record.url?scp=84941248153&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 2024-05-12T07:57:18+00:00 Arctic circulation regimes Proshutinsky, Andrey Dukhovskoy, Dmitry Timmermans, Mary Louise Krishfield, Richard Bamber, Jonathan L. 2015-10-13 application/pdf https://hdl.handle.net/1983/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://research-information.bris.ac.uk/en/publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://doi.org/10.1098/rsta.2014.0160 https://research-information.bris.ac.uk/ws/files/53775755/reprint_Proc_Roy_Soc.pdf http://www.scopus.com/inward/record.url?scp=84941248153&partnerID=8YFLogxK eng eng https://research-information.bris.ac.uk/en/publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 info:eu-repo/semantics/openAccess Proshutinsky , A , Dukhovskoy , D , Timmermans , M L , Krishfield , R & Bamber , J L 2015 , ' Arctic circulation regimes ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 373 , no. 2052 , 20140160 . https://doi.org/10.1098/rsta.2014.0160 Arctic climate variability Circulation regimes Freshwater and heat content article 2015 ftubristolcris https://doi.org/10.1098/rsta.2014.0160 2024-04-17T14:18:44Z Between 1948 and 1996, mean annual environmental parameters in the Arctic experienced a wellpronounced decadal variability with two basic circulation patterns: cyclonic and anticyclonic alternating at 5 to 7 year intervals. During cyclonic regimes, low sea-level atmospheric pressure (SLP) dominated over the Arctic Ocean driving sea ice and the upper ocean counterclockwise; the Arctic atmosphere was relatively warm and humid, and freshwater flux from the Arctic Ocean towards the subarctic seas was intensified. By contrast, during anticylonic circulation regimes, high SLP dominated driving sea ice and the upper ocean clockwise. Meanwhile, the atmosphere was cold and dry and the freshwater flux from the Arctic to the subarctic seas was reduced. Since 1997, however, the Arctic system has been under the influence of an anticyclonic circulation regime (17 years) with a set of environmental parameters that are atypical for this regime. We discuss a hypothesis explaining the causes and mechanisms regulating the intensity and duration of Arctic circulation regimes, and speculate how changes in freshwater fluxes from the Arctic Ocean and Greenland impact environmental conditions and interrupt their decadal variability. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Greenland Sea ice Subarctic University of Bristol: Bristol Research Arctic Arctic Ocean Greenland Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373 2052 20140160 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Arctic climate variability Circulation regimes Freshwater and heat content |
spellingShingle |
Arctic climate variability Circulation regimes Freshwater and heat content Proshutinsky, Andrey Dukhovskoy, Dmitry Timmermans, Mary Louise Krishfield, Richard Bamber, Jonathan L. Arctic circulation regimes |
topic_facet |
Arctic climate variability Circulation regimes Freshwater and heat content |
description |
Between 1948 and 1996, mean annual environmental parameters in the Arctic experienced a wellpronounced decadal variability with two basic circulation patterns: cyclonic and anticyclonic alternating at 5 to 7 year intervals. During cyclonic regimes, low sea-level atmospheric pressure (SLP) dominated over the Arctic Ocean driving sea ice and the upper ocean counterclockwise; the Arctic atmosphere was relatively warm and humid, and freshwater flux from the Arctic Ocean towards the subarctic seas was intensified. By contrast, during anticylonic circulation regimes, high SLP dominated driving sea ice and the upper ocean clockwise. Meanwhile, the atmosphere was cold and dry and the freshwater flux from the Arctic to the subarctic seas was reduced. Since 1997, however, the Arctic system has been under the influence of an anticyclonic circulation regime (17 years) with a set of environmental parameters that are atypical for this regime. We discuss a hypothesis explaining the causes and mechanisms regulating the intensity and duration of Arctic circulation regimes, and speculate how changes in freshwater fluxes from the Arctic Ocean and Greenland impact environmental conditions and interrupt their decadal variability. |
format |
Article in Journal/Newspaper |
author |
Proshutinsky, Andrey Dukhovskoy, Dmitry Timmermans, Mary Louise Krishfield, Richard Bamber, Jonathan L. |
author_facet |
Proshutinsky, Andrey Dukhovskoy, Dmitry Timmermans, Mary Louise Krishfield, Richard Bamber, Jonathan L. |
author_sort |
Proshutinsky, Andrey |
title |
Arctic circulation regimes |
title_short |
Arctic circulation regimes |
title_full |
Arctic circulation regimes |
title_fullStr |
Arctic circulation regimes |
title_full_unstemmed |
Arctic circulation regimes |
title_sort |
arctic circulation regimes |
publishDate |
2015 |
url |
https://hdl.handle.net/1983/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://research-information.bris.ac.uk/en/publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 https://doi.org/10.1098/rsta.2014.0160 https://research-information.bris.ac.uk/ws/files/53775755/reprint_Proc_Roy_Soc.pdf http://www.scopus.com/inward/record.url?scp=84941248153&partnerID=8YFLogxK |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Arctic Ocean Greenland Sea ice Subarctic |
genre_facet |
Arctic Arctic Arctic Ocean Greenland Sea ice Subarctic |
op_source |
Proshutinsky , A , Dukhovskoy , D , Timmermans , M L , Krishfield , R & Bamber , J L 2015 , ' Arctic circulation regimes ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 373 , no. 2052 , 20140160 . https://doi.org/10.1098/rsta.2014.0160 |
op_relation |
https://research-information.bris.ac.uk/en/publications/052fb8f2-21df-4c2c-8b27-28a517270ac9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rsta.2014.0160 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
373 |
container_issue |
2052 |
container_start_page |
20140160 |
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1798837680838017024 |