Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow
Extratropical cyclones transport heat and moisture into the Arctic, which can promote surface warming and sea ice melt. We investigate wintertime cyclone variability in the Barents Sea region to understand what controls the impacts, frequency, and path of cyclones at high latitudes. Large‐scale atmo...
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Online Access: | https://hdl.handle.net/11250/2740321 https://doi.org/10.1029/2020GL090322 |
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ftunivbergen:oai:bora.uib.no:11250/2740321 2023-05-15T14:54:01+02:00 Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow Madonna, Erica Hes, Gabriel Li, Camille Michel, Clio Siew, Yu Feng 2020 application/pdf https://hdl.handle.net/11250/2740321 https://doi.org/10.1029/2020GL090322 eng eng AGU Norges forskningsråd: 276730 Norges forskningsråd: 255027 urn:issn:0094-8276 https://hdl.handle.net/11250/2740321 https://doi.org/10.1029/2020GL090322 cristin:1842909 Geophysical Research Letters. 2020, 47(19), e2020GL090322 Copyright 2020. American Geophysical Union. All Rights Reserved e2020GL090322 Geophysical Research Letters 47:e2020GL090322 19 47 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.1029/2020GL090322 2023-03-14T17:43:01Z Extratropical cyclones transport heat and moisture into the Arctic, which can promote surface warming and sea ice melt. We investigate wintertime cyclone variability in the Barents Sea region to understand what controls the impacts, frequency, and path of cyclones at high latitudes. Large‐scale atmospheric conditions are found to be key, with the strongest surface warming from cyclones originating south of 60°N in the North Atlantic and steered northeastward by the upper‐level flow. Atmospheric conditions also control cyclone variability in the Barents proper: Months with many cyclones are characterized by an absence of high‐latitude blocking and enhanced local baroclinicity, due to the presence of strong upper‐level winds and a southwest‐northeast tilted jet stream more than changes in sea ice. This study confirms that Arctic cyclones exhibit large interannual variability, and accounting for this variability reveals that trends in Barents cyclone frequency are not robust over the 1979–2018 period. publishedVersion Article in Journal/Newspaper Arctic Barents Sea North Atlantic Sea ice University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Barents Sea Geophysical Research Letters 47 19 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Extratropical cyclones transport heat and moisture into the Arctic, which can promote surface warming and sea ice melt. We investigate wintertime cyclone variability in the Barents Sea region to understand what controls the impacts, frequency, and path of cyclones at high latitudes. Large‐scale atmospheric conditions are found to be key, with the strongest surface warming from cyclones originating south of 60°N in the North Atlantic and steered northeastward by the upper‐level flow. Atmospheric conditions also control cyclone variability in the Barents proper: Months with many cyclones are characterized by an absence of high‐latitude blocking and enhanced local baroclinicity, due to the presence of strong upper‐level winds and a southwest‐northeast tilted jet stream more than changes in sea ice. This study confirms that Arctic cyclones exhibit large interannual variability, and accounting for this variability reveals that trends in Barents cyclone frequency are not robust over the 1979–2018 period. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Madonna, Erica Hes, Gabriel Li, Camille Michel, Clio Siew, Yu Feng |
spellingShingle |
Madonna, Erica Hes, Gabriel Li, Camille Michel, Clio Siew, Yu Feng Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
author_facet |
Madonna, Erica Hes, Gabriel Li, Camille Michel, Clio Siew, Yu Feng |
author_sort |
Madonna, Erica |
title |
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
title_short |
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
title_full |
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
title_fullStr |
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
title_full_unstemmed |
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow |
title_sort |
control of barents sea wintertime cyclone variability by large-scale atmospheric flow |
publisher |
AGU |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2740321 https://doi.org/10.1029/2020GL090322 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea North Atlantic Sea ice |
genre_facet |
Arctic Barents Sea North Atlantic Sea ice |
op_source |
e2020GL090322 Geophysical Research Letters 47:e2020GL090322 19 47 |
op_relation |
Norges forskningsråd: 276730 Norges forskningsråd: 255027 urn:issn:0094-8276 https://hdl.handle.net/11250/2740321 https://doi.org/10.1029/2020GL090322 cristin:1842909 Geophysical Research Letters. 2020, 47(19), e2020GL090322 |
op_rights |
Copyright 2020. American Geophysical Union. All Rights Reserved |
op_doi |
https://doi.org/10.1029/2020GL090322 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
19 |
_version_ |
1766325718648619008 |