Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss?
In the framework of atmospheric circulation regimes, we study whether the recent Arctic sea ice loss and Arctic Amplification are associated with changes in the frequency of occurrence of preferred atmospheric circulation patterns during the extended winter season from December to March. To determin...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/68177 2023-05-15T14:38:16+02:00 Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? Crasemann, Berit Handorf, Doerthe Jaiser, Ralf Dethloff, Klaus Nakamura, Tetsu Ukita, Jinro Yamazaki, Koji http://hdl.handle.net/2115/68177 https://doi.org/10.1016/j.polar.2017.09.002 eng eng Elsevier http://hdl.handle.net/2115/68177 Polar Science, 14: 9-20 http://dx.doi.org/10.1016/j.polar.2017.09.002 © 2017, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Atmospheric circulation regimes Arctic-midlatitude linkages Cluster analysis 450 article fthokunivhus https://doi.org/10.1016/j.polar.2017.09.002 2022-11-18T01:04:35Z In the framework of atmospheric circulation regimes, we study whether the recent Arctic sea ice loss and Arctic Amplification are associated with changes in the frequency of occurrence of preferred atmospheric circulation patterns during the extended winter season from December to March. To determine regimes we applied a cluster analysis to sea-level pressure fields from reanalysis data and output from an atmospheric general circulation model. The specific set up of the two analyzed model simulations for low and high ice conditions allows for attributing differences between the simulations to the prescribed sea ice changes only. The reanalysis data revealed two circulation patterns that occur more frequently for low Arctic sea ice conditions: a Scandinavian blocking in December and January and a negative North Atlantic Oscillation pattern in February and March. An analysis of related patterns of synoptic-scale activity and 2 m temperatures provides a synoptic interpretation of the corresponding large-scale regimes. The regimes that occur more frequently for low sea ice conditions are resembled reasonably well by the model simulations. Based on those results we conclude that the detected changes in the frequency of occurrence of large-scale circulation patterns can be associated with changes in Arctic sea ice conditions. (C) 2017 The Authors. Published by Elsevier B.V. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Polar Science Polar Science Sea ice Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Polar Science 14 9 20 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Atmospheric circulation regimes Arctic-midlatitude linkages Cluster analysis 450 |
spellingShingle |
Atmospheric circulation regimes Arctic-midlatitude linkages Cluster analysis 450 Crasemann, Berit Handorf, Doerthe Jaiser, Ralf Dethloff, Klaus Nakamura, Tetsu Ukita, Jinro Yamazaki, Koji Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
topic_facet |
Atmospheric circulation regimes Arctic-midlatitude linkages Cluster analysis 450 |
description |
In the framework of atmospheric circulation regimes, we study whether the recent Arctic sea ice loss and Arctic Amplification are associated with changes in the frequency of occurrence of preferred atmospheric circulation patterns during the extended winter season from December to March. To determine regimes we applied a cluster analysis to sea-level pressure fields from reanalysis data and output from an atmospheric general circulation model. The specific set up of the two analyzed model simulations for low and high ice conditions allows for attributing differences between the simulations to the prescribed sea ice changes only. The reanalysis data revealed two circulation patterns that occur more frequently for low Arctic sea ice conditions: a Scandinavian blocking in December and January and a negative North Atlantic Oscillation pattern in February and March. An analysis of related patterns of synoptic-scale activity and 2 m temperatures provides a synoptic interpretation of the corresponding large-scale regimes. The regimes that occur more frequently for low sea ice conditions are resembled reasonably well by the model simulations. Based on those results we conclude that the detected changes in the frequency of occurrence of large-scale circulation patterns can be associated with changes in Arctic sea ice conditions. (C) 2017 The Authors. Published by Elsevier B.V. |
format |
Article in Journal/Newspaper |
author |
Crasemann, Berit Handorf, Doerthe Jaiser, Ralf Dethloff, Klaus Nakamura, Tetsu Ukita, Jinro Yamazaki, Koji |
author_facet |
Crasemann, Berit Handorf, Doerthe Jaiser, Ralf Dethloff, Klaus Nakamura, Tetsu Ukita, Jinro Yamazaki, Koji |
author_sort |
Crasemann, Berit |
title |
Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
title_short |
Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
title_full |
Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
title_fullStr |
Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
title_full_unstemmed |
Can preferred atmospheric circulation patterns over the North-Atlantic-Eurasian region be associated with arctic sea ice loss? |
title_sort |
can preferred atmospheric circulation patterns over the north-atlantic-eurasian region be associated with arctic sea ice loss? |
publisher |
Elsevier |
url |
http://hdl.handle.net/2115/68177 https://doi.org/10.1016/j.polar.2017.09.002 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation Polar Science Polar Science Sea ice |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Polar Science Polar Science Sea ice |
op_relation |
http://hdl.handle.net/2115/68177 Polar Science, 14: 9-20 http://dx.doi.org/10.1016/j.polar.2017.09.002 |
op_rights |
© 2017, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.polar.2017.09.002 |
container_title |
Polar Science |
container_volume |
14 |
container_start_page |
9 |
op_container_end_page |
20 |
_version_ |
1766310374953451520 |