Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells
Recent research has established a statistical link between North American cold spells (CS) and concurrent wet or windy extremes in Europe. Here, we investigate whether such a link can be related to changes in the characteristics of North Atlantic extratropical cyclones (hereafter cyclones). Despite...
Published in: | Weather and Climate Extremes |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Uppsala universitet, Luft-, vatten- och landskapslära
2023
|
Subjects: | |
Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516712 https://doi.org/10.1016/j.wace.2023.100629 |
id |
ftuppsalauniv:oai:DiVA.org:uu-516712 |
---|---|
record_format |
openpolar |
spelling |
ftuppsalauniv:oai:DiVA.org:uu-516712 2024-02-04T10:02:16+01:00 Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells Leeding, Richard Riboldi, Jacopo Messori, Gabriele 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516712 https://doi.org/10.1016/j.wace.2023.100629 eng eng Uppsala universitet, Luft-, vatten- och landskapslära Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland Department of Meteorology and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden Weather and Climate Extremes, 2212-0947, 2023, 42, orcid:0000-0002-7717-7678 orcid:0000-0001-5166-9618 orcid:0000-0002-2032-5211 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516712 doi:10.1016/j.wace.2023.100629 ISI:001128237100001 info:eu-repo/semantics/openAccess Cold extremes Extratropical cyclones Compound extremes North America North Atlantic Europe North Atlantic storm track Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Article in journal info:eu-repo/semantics/article text 2023 ftuppsalauniv https://doi.org/10.1016/j.wace.2023.100629 2024-01-10T23:32:02Z Recent research has established a statistical link between North American cold spells (CS) and concurrent wet or windy extremes in Europe. Here, we investigate whether such a link can be related to changes in the characteristics of North Atlantic extratropical cyclones (hereafter cyclones). Despite large regions of anomalous baroclinicity during periods of North American CS, the number of cyclones across the North Atlantic as a whole is not significantly above climatology. However, we observe rates of explosive cyclogenesis significantly above climatology. We further find that CS over different North American regions are associated with large-scale atmospheric configurations displaying a strenghtened jet stream in the vicinity of the CS and different upper-level wind anomalies in the East Atlantic. These, in turn, modulate the regional distributions and characteristics of cyclones in the North Atlantic and Europe. We compute a fixed-radius cyclone footprint which we use to associate extreme precipitation and wind occurrences to individual cyclones. For eastern Canada CS, the North Atlantic jet extends over Northern Europe, resulting in a heightened numbers of cyclones for the British Isles and Scandinavia, while France, the British Isles, Northern Europe and Scandinavia all experience more intense cyclones. The British Isles consistently experience wind extremes associated with cyclones during east Canada CS. For central Canada CS, the jet is displaced poleward and only partly extends over Europe, resulting in an above average cyclone density in the eastern Atlantic and a higher number of cyclones affecting Iberia only. Iberia consistently experiences precipitation extremes associated with the cyclones during central Canada CS. For eastern United States CS, the jet is displaced equatorward and extends over Southern Europe, with a significantly heightened number of cyclones affecting Iberia and France. Iberia experiences wind extremes associated with the cyclones during eastern United States CS. Our results ... Article in Journal/Newspaper North Atlantic Uppsala University: Publications (DiVA) Canada Weather and Climate Extremes 42 100629 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Cold extremes Extratropical cyclones Compound extremes North America North Atlantic Europe North Atlantic storm track Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
spellingShingle |
Cold extremes Extratropical cyclones Compound extremes North America North Atlantic Europe North Atlantic storm track Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Leeding, Richard Riboldi, Jacopo Messori, Gabriele Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
topic_facet |
Cold extremes Extratropical cyclones Compound extremes North America North Atlantic Europe North Atlantic storm track Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
description |
Recent research has established a statistical link between North American cold spells (CS) and concurrent wet or windy extremes in Europe. Here, we investigate whether such a link can be related to changes in the characteristics of North Atlantic extratropical cyclones (hereafter cyclones). Despite large regions of anomalous baroclinicity during periods of North American CS, the number of cyclones across the North Atlantic as a whole is not significantly above climatology. However, we observe rates of explosive cyclogenesis significantly above climatology. We further find that CS over different North American regions are associated with large-scale atmospheric configurations displaying a strenghtened jet stream in the vicinity of the CS and different upper-level wind anomalies in the East Atlantic. These, in turn, modulate the regional distributions and characteristics of cyclones in the North Atlantic and Europe. We compute a fixed-radius cyclone footprint which we use to associate extreme precipitation and wind occurrences to individual cyclones. For eastern Canada CS, the North Atlantic jet extends over Northern Europe, resulting in a heightened numbers of cyclones for the British Isles and Scandinavia, while France, the British Isles, Northern Europe and Scandinavia all experience more intense cyclones. The British Isles consistently experience wind extremes associated with cyclones during east Canada CS. For central Canada CS, the jet is displaced poleward and only partly extends over Europe, resulting in an above average cyclone density in the eastern Atlantic and a higher number of cyclones affecting Iberia only. Iberia consistently experiences precipitation extremes associated with the cyclones during central Canada CS. For eastern United States CS, the jet is displaced equatorward and extends over Southern Europe, with a significantly heightened number of cyclones affecting Iberia and France. Iberia experiences wind extremes associated with the cyclones during eastern United States CS. Our results ... |
format |
Article in Journal/Newspaper |
author |
Leeding, Richard Riboldi, Jacopo Messori, Gabriele |
author_facet |
Leeding, Richard Riboldi, Jacopo Messori, Gabriele |
author_sort |
Leeding, Richard |
title |
Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
title_short |
Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
title_full |
Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
title_fullStr |
Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
title_full_unstemmed |
Modulation of North Atlantic extratropical cyclones and extreme weather in Europe during North American cold spells |
title_sort |
modulation of north atlantic extratropical cyclones and extreme weather in europe during north american cold spells |
publisher |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516712 https://doi.org/10.1016/j.wace.2023.100629 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Weather and Climate Extremes, 2212-0947, 2023, 42, orcid:0000-0002-7717-7678 orcid:0000-0001-5166-9618 orcid:0000-0002-2032-5211 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516712 doi:10.1016/j.wace.2023.100629 ISI:001128237100001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.wace.2023.100629 |
container_title |
Weather and Climate Extremes |
container_volume |
42 |
container_start_page |
100629 |
_version_ |
1789968770145452032 |