The relationship between the eddy-driven jet stream and northern European sea level variability
Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between northern European sea level variability and large-scale atmospheric circulatio...
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Online Access: | https://hdl.handle.net/11250/2763407 https://doi.org/10.1080/16000870.2021.1886419 |
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ftunivbergen:oai:bora.uib.no:11250/2763407 2023-05-15T17:35:43+02:00 The relationship between the eddy-driven jet stream and northern European sea level variability Mangini, Fabio Chafik, Léon Madonna, Erica Li, Camille Bertino, Laurent Nilsen, Jan Even Øie 2021 application/pdf https://hdl.handle.net/11250/2763407 https://doi.org/10.1080/16000870.2021.1886419 eng eng Taylor and Francis urn:issn:0280-6495 https://hdl.handle.net/11250/2763407 https://doi.org/10.1080/16000870.2021.1886419 cristin:1891610 Tellus A: Dynamic Meteorology and Oceanography. 2021, 73, 1886419. Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no Copyright 2021 The Author(s). 1886419 Tellus A: Dynamic Meteorology and Oceanography 73 1 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.1080/16000870.2021.1886419 2023-03-14T17:44:50Z Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between northern European sea level variability and large-scale atmospheric circulation patterns as represented by the jet cluster paradigm. The jet clusters represent different configurations of the eddy-driven jet stream and, therefore, provide a physical description of the atmospheric variability in the North Atlantic. We find that each of the four jet clusters is associated with a distinct northern European sea level anomaly pattern whose magnitudes are comparable to those of typical sea level variations on the shelf. In certain locations, such as the German Bight and the east coast of England, sea level anomalies are mainly associated with one single jet cluster. In other locations, such as the interior and the northern part of the North Sea, sea level anomalies are found to be sensitive to at least two jet configurations. Based on these regional sea level variations, we map out the locations on the shelf where each jet cluster or combination of clusters is most active before discussing the role of Ekman transport in inducing the resulting patterns. Through a multiple linear regression model, we also find that the jet clusters reconstruct up to 50% of the monthly mean sea level anomaly variance over the northern European continental shelf. The model best performs in the interior and the western part of the North Sea, suggesting that wind direction rather than wind speed plays a more prominent role over these regions. We conclude that the jet cluster approach gives valuable new insights compared to linear regression techniques for characterising wind-driven sea level variability over the northern European continental shelf. publishedVersion Article in Journal/Newspaper North Atlantic University of Bergen: Bergen Open Research Archive (BORA-UiB) Tellus A: Dynamic Meteorology and Oceanography 73 1 1886419 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between northern European sea level variability and large-scale atmospheric circulation patterns as represented by the jet cluster paradigm. The jet clusters represent different configurations of the eddy-driven jet stream and, therefore, provide a physical description of the atmospheric variability in the North Atlantic. We find that each of the four jet clusters is associated with a distinct northern European sea level anomaly pattern whose magnitudes are comparable to those of typical sea level variations on the shelf. In certain locations, such as the German Bight and the east coast of England, sea level anomalies are mainly associated with one single jet cluster. In other locations, such as the interior and the northern part of the North Sea, sea level anomalies are found to be sensitive to at least two jet configurations. Based on these regional sea level variations, we map out the locations on the shelf where each jet cluster or combination of clusters is most active before discussing the role of Ekman transport in inducing the resulting patterns. Through a multiple linear regression model, we also find that the jet clusters reconstruct up to 50% of the monthly mean sea level anomaly variance over the northern European continental shelf. The model best performs in the interior and the western part of the North Sea, suggesting that wind direction rather than wind speed plays a more prominent role over these regions. We conclude that the jet cluster approach gives valuable new insights compared to linear regression techniques for characterising wind-driven sea level variability over the northern European continental shelf. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Mangini, Fabio Chafik, Léon Madonna, Erica Li, Camille Bertino, Laurent Nilsen, Jan Even Øie |
spellingShingle |
Mangini, Fabio Chafik, Léon Madonna, Erica Li, Camille Bertino, Laurent Nilsen, Jan Even Øie The relationship between the eddy-driven jet stream and northern European sea level variability |
author_facet |
Mangini, Fabio Chafik, Léon Madonna, Erica Li, Camille Bertino, Laurent Nilsen, Jan Even Øie |
author_sort |
Mangini, Fabio |
title |
The relationship between the eddy-driven jet stream and northern European sea level variability |
title_short |
The relationship between the eddy-driven jet stream and northern European sea level variability |
title_full |
The relationship between the eddy-driven jet stream and northern European sea level variability |
title_fullStr |
The relationship between the eddy-driven jet stream and northern European sea level variability |
title_full_unstemmed |
The relationship between the eddy-driven jet stream and northern European sea level variability |
title_sort |
relationship between the eddy-driven jet stream and northern european sea level variability |
publisher |
Taylor and Francis |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2763407 https://doi.org/10.1080/16000870.2021.1886419 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
1886419 Tellus A: Dynamic Meteorology and Oceanography 73 1 |
op_relation |
urn:issn:0280-6495 https://hdl.handle.net/11250/2763407 https://doi.org/10.1080/16000870.2021.1886419 cristin:1891610 Tellus A: Dynamic Meteorology and Oceanography. 2021, 73, 1886419. |
op_rights |
Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no Copyright 2021 The Author(s). |
op_doi |
https://doi.org/10.1080/16000870.2021.1886419 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
73 |
container_issue |
1 |
container_start_page |
1886419 |
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1766134979394273280 |