Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation
The response of the Arctic atmosphere to low and high sea ice concentration phases based on European Center for Medium-Range Weather Forecast (ECMWF) Re-Analysis Interim (ERA-Interim) atmospheric data and Hadley Centre's sea ice dataset (HadISST1) from 1989 until 2010 has been studied. Ti...
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Stockholm University Press
2012
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Online Access: | https://doi.org/10.3402/tellusa.v64i0.11595 https://doaj.org/article/03665834e9e749f2aa29d16b48620be7 |
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ftdoajarticles:oai:doaj.org/article:03665834e9e749f2aa29d16b48620be7 2023-05-15T14:43:52+02:00 Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation D. Handorf K. Dethloff R. Jaiser J. Cohen A. Rinke 2012-01-01T00:00:00Z https://doi.org/10.3402/tellusa.v64i0.11595 https://doaj.org/article/03665834e9e749f2aa29d16b48620be7 EN eng Stockholm University Press http://www.tellusa.net/index.php/tellusa/article/view/11595/pdf https://doaj.org/toc/0280-6495 https://doaj.org/toc/1600-0870 doi:10.3402/tellusa.v64i0.11595 0280-6495 1600-0870 https://doaj.org/article/03665834e9e749f2aa29d16b48620be7 Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 64, Iss 0, Pp 1-11 (2012) Arctic sea ice atmospheric circulation baroclinic-planetary interactions teleconections Oceanography GC1-1581 Meteorology. Climatology QC851-999 article 2012 ftdoajarticles https://doi.org/10.3402/tellusa.v64i0.11595 2022-12-30T23:54:18Z The response of the Arctic atmosphere to low and high sea ice concentration phases based on European Center for Medium-Range Weather Forecast (ECMWF) Re-Analysis Interim (ERA-Interim) atmospheric data and Hadley Centre's sea ice dataset (HadISST1) from 1989 until 2010 has been studied. Time slices of winter atmospheric circulation with high (1990–2000) and low (2001–2010) sea ice concentration in the preceding August/September have been analysed with respect to tropospheric interactions between planetary and baroclinic waves. It is shown that a changed sea ice concentration over the Arctic Ocean impacts differently the development of synoptic and planetary atmospheric circulation systems. During the low ice phase, stronger heat release to the atmosphere over the Arctic Ocean reduces the atmospheric vertical static stability. This leads to an earlier onset of baroclinic instability that further modulates the non-linear interactions between baroclinic wave energy fluxes on time scales of 2.5–6 d and planetary scales of 10–90 d. Our analysis suggests that Arctic sea ice concentration changes exert a remote impact on the large-scale atmospheric circulation during winter, exhibiting a barotropic structure with similar patterns of pressure anomalies at the surface and in the mid-troposphere. These are connected to pronounced planetary wave train changes notably over the North Pacific. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Pacific Tellus A: Dynamic Meteorology and Oceanography 64 1 11595 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic sea ice atmospheric circulation baroclinic-planetary interactions teleconections Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
spellingShingle |
Arctic sea ice atmospheric circulation baroclinic-planetary interactions teleconections Oceanography GC1-1581 Meteorology. Climatology QC851-999 D. Handorf K. Dethloff R. Jaiser J. Cohen A. Rinke Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
topic_facet |
Arctic sea ice atmospheric circulation baroclinic-planetary interactions teleconections Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
description |
The response of the Arctic atmosphere to low and high sea ice concentration phases based on European Center for Medium-Range Weather Forecast (ECMWF) Re-Analysis Interim (ERA-Interim) atmospheric data and Hadley Centre's sea ice dataset (HadISST1) from 1989 until 2010 has been studied. Time slices of winter atmospheric circulation with high (1990–2000) and low (2001–2010) sea ice concentration in the preceding August/September have been analysed with respect to tropospheric interactions between planetary and baroclinic waves. It is shown that a changed sea ice concentration over the Arctic Ocean impacts differently the development of synoptic and planetary atmospheric circulation systems. During the low ice phase, stronger heat release to the atmosphere over the Arctic Ocean reduces the atmospheric vertical static stability. This leads to an earlier onset of baroclinic instability that further modulates the non-linear interactions between baroclinic wave energy fluxes on time scales of 2.5–6 d and planetary scales of 10–90 d. Our analysis suggests that Arctic sea ice concentration changes exert a remote impact on the large-scale atmospheric circulation during winter, exhibiting a barotropic structure with similar patterns of pressure anomalies at the surface and in the mid-troposphere. These are connected to pronounced planetary wave train changes notably over the North Pacific. |
format |
Article in Journal/Newspaper |
author |
D. Handorf K. Dethloff R. Jaiser J. Cohen A. Rinke |
author_facet |
D. Handorf K. Dethloff R. Jaiser J. Cohen A. Rinke |
author_sort |
D. Handorf |
title |
Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
title_short |
Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
title_full |
Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
title_fullStr |
Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
title_full_unstemmed |
Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation |
title_sort |
impact of sea ice cover changes on the northern hemisphere atmospheric winter circulation |
publisher |
Stockholm University Press |
publishDate |
2012 |
url |
https://doi.org/10.3402/tellusa.v64i0.11595 https://doaj.org/article/03665834e9e749f2aa29d16b48620be7 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 64, Iss 0, Pp 1-11 (2012) |
op_relation |
http://www.tellusa.net/index.php/tellusa/article/view/11595/pdf https://doaj.org/toc/0280-6495 https://doaj.org/toc/1600-0870 doi:10.3402/tellusa.v64i0.11595 0280-6495 1600-0870 https://doaj.org/article/03665834e9e749f2aa29d16b48620be7 |
op_doi |
https://doi.org/10.3402/tellusa.v64i0.11595 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
64 |
container_issue |
1 |
container_start_page |
11595 |
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1766315450503790592 |