The composite development and structure of intense synoptic-scale Arctic cyclones
Understanding the location and intensity of hazardous weather across the Arctic is important for assessing risks to infrastructure, shipping, and coastal communities. Key hazards driving these risks are extreme near-surface winds, high ocean waves, and heavy precipitation, which are dependent on the...
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2022
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Online Access: | https://doi.org/10.5194/wcd-3-1097-2022 https://doaj.org/article/927a5fea8e8c4182825d364fa7362069 |
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ftdoajarticles:oai:doaj.org/article:927a5fea8e8c4182825d364fa7362069 2023-05-15T14:32:27+02:00 The composite development and structure of intense synoptic-scale Arctic cyclones A. F. Vessey K. I. Hodges L. C. Shaffrey J. J. Day 2022-09-01T00:00:00Z https://doi.org/10.5194/wcd-3-1097-2022 https://doaj.org/article/927a5fea8e8c4182825d364fa7362069 EN eng Copernicus Publications https://wcd.copernicus.org/articles/3/1097/2022/wcd-3-1097-2022.pdf https://doaj.org/toc/2698-4016 doi:10.5194/wcd-3-1097-2022 2698-4016 https://doaj.org/article/927a5fea8e8c4182825d364fa7362069 Weather and Climate Dynamics, Vol 3, Pp 1097-1112 (2022) Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.5194/wcd-3-1097-2022 2022-12-30T20:32:59Z Understanding the location and intensity of hazardous weather across the Arctic is important for assessing risks to infrastructure, shipping, and coastal communities. Key hazards driving these risks are extreme near-surface winds, high ocean waves, and heavy precipitation, which are dependent on the structure and development of intense synoptic-scale cyclones. This study aims to describe the typical lifetime, structure, and development of a large sample of past intense winter (DJF) and summer (JJA) synoptic-scale Arctic cyclones using a storm compositing methodology applied to the ERA5 reanalysis. Results show that the composite development and structure of intense summer Arctic cyclones are different from those of intense winter Arctic and North Atlantic Ocean extra-tropical cyclones and from those described in conceptual models of extra-tropical and Arctic cyclones. The composite structure of intense summer Arctic cyclones shows that they typically undergo a structural transition around the time of maximum intensity from having a baroclinic structure to an axi-symmetric cold-core structure throughout the troposphere, with a low-lying tropopause and large positive temperature anomaly in the lower stratosphere. Summer Arctic cyclones are also found to have longer lifetimes than winter Arctic and North Atlantic Ocean extra-tropical cyclones, potentially causing prolonged hazardous and disruptive weather conditions in the Arctic. Article in Journal/Newspaper Arctic North Atlantic Directory of Open Access Journals: DOAJ Articles Arctic Weather and Climate Dynamics 3 3 1097 1112 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Meteorology. Climatology QC851-999 |
spellingShingle |
Meteorology. Climatology QC851-999 A. F. Vessey K. I. Hodges L. C. Shaffrey J. J. Day The composite development and structure of intense synoptic-scale Arctic cyclones |
topic_facet |
Meteorology. Climatology QC851-999 |
description |
Understanding the location and intensity of hazardous weather across the Arctic is important for assessing risks to infrastructure, shipping, and coastal communities. Key hazards driving these risks are extreme near-surface winds, high ocean waves, and heavy precipitation, which are dependent on the structure and development of intense synoptic-scale cyclones. This study aims to describe the typical lifetime, structure, and development of a large sample of past intense winter (DJF) and summer (JJA) synoptic-scale Arctic cyclones using a storm compositing methodology applied to the ERA5 reanalysis. Results show that the composite development and structure of intense summer Arctic cyclones are different from those of intense winter Arctic and North Atlantic Ocean extra-tropical cyclones and from those described in conceptual models of extra-tropical and Arctic cyclones. The composite structure of intense summer Arctic cyclones shows that they typically undergo a structural transition around the time of maximum intensity from having a baroclinic structure to an axi-symmetric cold-core structure throughout the troposphere, with a low-lying tropopause and large positive temperature anomaly in the lower stratosphere. Summer Arctic cyclones are also found to have longer lifetimes than winter Arctic and North Atlantic Ocean extra-tropical cyclones, potentially causing prolonged hazardous and disruptive weather conditions in the Arctic. |
format |
Article in Journal/Newspaper |
author |
A. F. Vessey K. I. Hodges L. C. Shaffrey J. J. Day |
author_facet |
A. F. Vessey K. I. Hodges L. C. Shaffrey J. J. Day |
author_sort |
A. F. Vessey |
title |
The composite development and structure of intense synoptic-scale Arctic cyclones |
title_short |
The composite development and structure of intense synoptic-scale Arctic cyclones |
title_full |
The composite development and structure of intense synoptic-scale Arctic cyclones |
title_fullStr |
The composite development and structure of intense synoptic-scale Arctic cyclones |
title_full_unstemmed |
The composite development and structure of intense synoptic-scale Arctic cyclones |
title_sort |
composite development and structure of intense synoptic-scale arctic cyclones |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/wcd-3-1097-2022 https://doaj.org/article/927a5fea8e8c4182825d364fa7362069 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
Weather and Climate Dynamics, Vol 3, Pp 1097-1112 (2022) |
op_relation |
https://wcd.copernicus.org/articles/3/1097/2022/wcd-3-1097-2022.pdf https://doaj.org/toc/2698-4016 doi:10.5194/wcd-3-1097-2022 2698-4016 https://doaj.org/article/927a5fea8e8c4182825d364fa7362069 |
op_doi |
https://doi.org/10.5194/wcd-3-1097-2022 |
container_title |
Weather and Climate Dynamics |
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3 |
container_issue |
3 |
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1097 |
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1112 |
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1766305856207454208 |