Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes
By means of unforced simulations with a global coupled circulation model it is shown that naturally occurring changes between high and low sea ice cover phases of the Arctic Ocean exert a strong influence on the Northern Hemisphere storm tracks. This work emphasizes on the nonlinear dynamical feedba...
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fthzgzmk:oai:publications.hereon.de:25736 2023-06-11T04:07:40+02:00 Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes Sokolova, E. Dethloff, K. Rinke, A. Benkel, A. 2007 https://publications.hereon.de/id/25736 https://publications.hzg.de/id/25736 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2007/Sokolava-geophyreslet.pdf en eng AGU http://dx.doi.org/10.1029/2007GL030218 urn:issn:0094-8276 https://publications.hereon.de/id/25736 https://publications.hzg.de/id/25736 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2007/Sokolava-geophyreslet.pdf info:eu-repo/semantics/openAccess open_access oa_gruen issn:0094-8276 Sokolova, E.; Dethloff, K.; Rinke, A.; Benkel, A.: Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes. In: Geophysical Research Letters. Vol. 34 (2007) 17, L17816. (DOI:10.1029/2007GL030218) info:eu-repo/classification/ddc/551 info:eu-repo/semantics/article Zeitschrift Artikel 2007 fthzgzmk https://doi.org/10.1029/2007GL030218 2023-05-28T23:22:41Z By means of unforced simulations with a global coupled circulation model it is shown that naturally occurring changes between high and low sea ice cover phases of the Arctic Ocean exert a strong influence on the Northern Hemisphere storm tracks. This work emphasizes on the nonlinear dynamical feedback between Arctic sea ice cover and the Arctic Oscillation (AO) like atmospheric response in dependence of the wintertime sea ice distribution. Two seven year long time slices with high and low sea ice cover have been analyzed with respect to the feedbacks between the time-mean flow, the quasi-stationary planetary and the baroclinic waves. The wave energy fluxes on time scales 2 to 6 days increase in the middle troposphere between 30 and 60° N during the high sea ice phase and enhance the zonal wind. Their increase is compensated by a strong reduction in the Eliassen-21 Palm fluxes on time scales from 10 to 90 days between 60 and 70° N during high sea ice phases, accompanied by reduced zonal winds. High sea ice cover phases are related to the zonal wind changes during the positive phases of the AO especially over the northern part of the Atlantic Ocean. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Sea ice Hereon Publications (Helmholtz-Zentrum) Arctic Arctic Ocean Geophysical Research Letters 34 17 |
institution |
Open Polar |
collection |
Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
topic |
info:eu-repo/classification/ddc/551 |
spellingShingle |
info:eu-repo/classification/ddc/551 Sokolova, E. Dethloff, K. Rinke, A. Benkel, A. Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
topic_facet |
info:eu-repo/classification/ddc/551 |
description |
By means of unforced simulations with a global coupled circulation model it is shown that naturally occurring changes between high and low sea ice cover phases of the Arctic Ocean exert a strong influence on the Northern Hemisphere storm tracks. This work emphasizes on the nonlinear dynamical feedback between Arctic sea ice cover and the Arctic Oscillation (AO) like atmospheric response in dependence of the wintertime sea ice distribution. Two seven year long time slices with high and low sea ice cover have been analyzed with respect to the feedbacks between the time-mean flow, the quasi-stationary planetary and the baroclinic waves. The wave energy fluxes on time scales 2 to 6 days increase in the middle troposphere between 30 and 60° N during the high sea ice phase and enhance the zonal wind. Their increase is compensated by a strong reduction in the Eliassen-21 Palm fluxes on time scales from 10 to 90 days between 60 and 70° N during high sea ice phases, accompanied by reduced zonal winds. High sea ice cover phases are related to the zonal wind changes during the positive phases of the AO especially over the northern part of the Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Sokolova, E. Dethloff, K. Rinke, A. Benkel, A. |
author_facet |
Sokolova, E. Dethloff, K. Rinke, A. Benkel, A. |
author_sort |
Sokolova, E. |
title |
Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
title_short |
Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
title_full |
Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
title_fullStr |
Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
title_full_unstemmed |
Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes |
title_sort |
planetary and synoptic scale adjustment of the arctic atmosphere to sea ice cover changes |
publisher |
AGU |
publishDate |
2007 |
url |
https://publications.hereon.de/id/25736 https://publications.hzg.de/id/25736 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2007/Sokolava-geophyreslet.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Sea ice |
op_source |
issn:0094-8276 Sokolova, E.; Dethloff, K.; Rinke, A.; Benkel, A.: Planetary and synoptic scale adjustment of the Arctic atmosphere to sea ice cover changes. In: Geophysical Research Letters. Vol. 34 (2007) 17, L17816. (DOI:10.1029/2007GL030218) |
op_relation |
http://dx.doi.org/10.1029/2007GL030218 urn:issn:0094-8276 https://publications.hereon.de/id/25736 https://publications.hzg.de/id/25736 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2007/Sokolava-geophyreslet.pdf |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gruen |
op_doi |
https://doi.org/10.1029/2007GL030218 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
17 |
_version_ |
1768380825669206016 |