A Record‐Breaking Cyclone Over the Southern Ocean in 2022
Abstract In October 2022, an extreme cyclone developed in the South Pacific Ocean with a sea level pressure of 900 hPa, becoming the strongest extratropical cyclone in the satellite era. Using ERA5 reanalysis data, we investigated its development mechanisms and examined long‐term changes in the occu...
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ftdoajarticles:oai:doaj.org/article:c596cc6f74d143b68b16c86416b30b87 2024-09-15T18:37:02+00:00 A Record‐Breaking Cyclone Over the Southern Ocean in 2022 Peiyi Lin Rui Zhong Qinghua Yang Kyle R. Clem Dake Chen 2023-07-01T00:00:00Z https://doi.org/10.1029/2023GL104012 https://doaj.org/article/c596cc6f74d143b68b16c86416b30b87 EN eng Wiley https://doi.org/10.1029/2023GL104012 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL104012 https://doaj.org/article/c596cc6f74d143b68b16c86416b30b87 Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023) Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2023GL104012 2024-08-05T17:49:23Z Abstract In October 2022, an extreme cyclone developed in the South Pacific Ocean with a sea level pressure of 900 hPa, becoming the strongest extratropical cyclone in the satellite era. Using ERA5 reanalysis data, we investigated its development mechanisms and examined long‐term changes in the occurrence of extreme cyclones over the Southern Ocean. Our findings indicate that the cyclone formed within a low‐pressure anomaly over the South Pacific. Its explosive development was initiated by upper‐level dynamic forcing and driven by low‐level latent heat release, which had been preconditioned by surface heat flux. Extreme cyclones have increased significantly in the Amundsen‐Bellingshausen Seas (ABS) and the South Indian Ocean since 1980. The large‐scale environmental variables in the ABS also showed a consistent trend toward more favorable conditions for cyclone intensification. Understanding these extreme cyclone events will help to overcome the uncertainty in projections of climate change impacts and improve weather forecast skills. Article in Journal/Newspaper Southern Ocean Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 14 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geophysics. Cosmic physics QC801-809 Peiyi Lin Rui Zhong Qinghua Yang Kyle R. Clem Dake Chen A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
topic_facet |
Geophysics. Cosmic physics QC801-809 |
description |
Abstract In October 2022, an extreme cyclone developed in the South Pacific Ocean with a sea level pressure of 900 hPa, becoming the strongest extratropical cyclone in the satellite era. Using ERA5 reanalysis data, we investigated its development mechanisms and examined long‐term changes in the occurrence of extreme cyclones over the Southern Ocean. Our findings indicate that the cyclone formed within a low‐pressure anomaly over the South Pacific. Its explosive development was initiated by upper‐level dynamic forcing and driven by low‐level latent heat release, which had been preconditioned by surface heat flux. Extreme cyclones have increased significantly in the Amundsen‐Bellingshausen Seas (ABS) and the South Indian Ocean since 1980. The large‐scale environmental variables in the ABS also showed a consistent trend toward more favorable conditions for cyclone intensification. Understanding these extreme cyclone events will help to overcome the uncertainty in projections of climate change impacts and improve weather forecast skills. |
format |
Article in Journal/Newspaper |
author |
Peiyi Lin Rui Zhong Qinghua Yang Kyle R. Clem Dake Chen |
author_facet |
Peiyi Lin Rui Zhong Qinghua Yang Kyle R. Clem Dake Chen |
author_sort |
Peiyi Lin |
title |
A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
title_short |
A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
title_full |
A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
title_fullStr |
A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
title_full_unstemmed |
A Record‐Breaking Cyclone Over the Southern Ocean in 2022 |
title_sort |
record‐breaking cyclone over the southern ocean in 2022 |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GL104012 https://doaj.org/article/c596cc6f74d143b68b16c86416b30b87 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GL104012 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL104012 https://doaj.org/article/c596cc6f74d143b68b16c86416b30b87 |
op_doi |
https://doi.org/10.1029/2023GL104012 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
14 |
_version_ |
1810481281097531392 |