Polar Vortex Disruptions by High Latitude Ocean Warming ...
Mid-latitude extreme cold outbreaks are associated with disruptions of the polar vortex, which often happen abruptly in connection to a sudden stratospheric warming. Understanding global warming (particularly Arctic amplification) impacts on forecasting such events is challenging for the scientific...
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American Geophysical Union
2024
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Online Access: | https://dx.doi.org/10.48350/199568 https://boris.unibe.ch/199568/ |
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ftdatacite:10.48350/199568 2024-09-15T18:08:07+00:00 Polar Vortex Disruptions by High Latitude Ocean Warming ... Hamouda, Mostafa E. Portal, Alice Pasquero, Claudia 2024 https://dx.doi.org/10.48350/199568 https://boris.unibe.ch/199568/ unknown American Geophysical Union https://dx.doi.org/10.1029/2023GL107567 open access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 000 Computer science, knowledge & systems 910 Geography & travel Text ScholarlyArticle article-journal journal article 2024 ftdatacite https://doi.org/10.48350/19956810.1029/2023GL107567 2024-09-02T10:17:31Z Mid-latitude extreme cold outbreaks are associated with disruptions of the polar vortex, which often happen abruptly in connection to a sudden stratospheric warming. Understanding global warming (particularly Arctic amplification) impacts on forecasting such events is challenging for the scientific community. Here we apply clustering analysis on the Northern Annular Mode to identify surface precursors and the governing mechanisms causing polar vortex disruption events. Two clusters of vortex breakdown emerge; 65% of the events, mainly displacements, are associated with high-latitude Ocean warming in the North Pacific and in Barents-Kara Sea. Such warming may cause large scale modifications of the tropospheric flow that favors a slowdown of the stratospheric vortex. The persistence of Ocean surface temperature patterns favors polar vortex disruptions, potentially improving prediction skills at the sub-seasonal to seasonal time scales. ... Text Global warming Kara Sea DataCite |
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000 Computer science, knowledge & systems 910 Geography & travel |
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000 Computer science, knowledge & systems 910 Geography & travel Hamouda, Mostafa E. Portal, Alice Pasquero, Claudia Polar Vortex Disruptions by High Latitude Ocean Warming ... |
topic_facet |
000 Computer science, knowledge & systems 910 Geography & travel |
description |
Mid-latitude extreme cold outbreaks are associated with disruptions of the polar vortex, which often happen abruptly in connection to a sudden stratospheric warming. Understanding global warming (particularly Arctic amplification) impacts on forecasting such events is challenging for the scientific community. Here we apply clustering analysis on the Northern Annular Mode to identify surface precursors and the governing mechanisms causing polar vortex disruption events. Two clusters of vortex breakdown emerge; 65% of the events, mainly displacements, are associated with high-latitude Ocean warming in the North Pacific and in Barents-Kara Sea. Such warming may cause large scale modifications of the tropospheric flow that favors a slowdown of the stratospheric vortex. The persistence of Ocean surface temperature patterns favors polar vortex disruptions, potentially improving prediction skills at the sub-seasonal to seasonal time scales. ... |
format |
Text |
author |
Hamouda, Mostafa E. Portal, Alice Pasquero, Claudia |
author_facet |
Hamouda, Mostafa E. Portal, Alice Pasquero, Claudia |
author_sort |
Hamouda, Mostafa E. |
title |
Polar Vortex Disruptions by High Latitude Ocean Warming ... |
title_short |
Polar Vortex Disruptions by High Latitude Ocean Warming ... |
title_full |
Polar Vortex Disruptions by High Latitude Ocean Warming ... |
title_fullStr |
Polar Vortex Disruptions by High Latitude Ocean Warming ... |
title_full_unstemmed |
Polar Vortex Disruptions by High Latitude Ocean Warming ... |
title_sort |
polar vortex disruptions by high latitude ocean warming ... |
publisher |
American Geophysical Union |
publishDate |
2024 |
url |
https://dx.doi.org/10.48350/199568 https://boris.unibe.ch/199568/ |
genre |
Global warming Kara Sea |
genre_facet |
Global warming Kara Sea |
op_relation |
https://dx.doi.org/10.1029/2023GL107567 |
op_rights |
open access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/19956810.1029/2023GL107567 |
_version_ |
1810445465516244992 |