Enhanced understanding of poleward migration of tropical cyclone genesis
The known trends of poleward migration for the tropical cyclone (TC) genesis in both hemispheres are discussed from different perspectives. It is shown that the poleward migration rate of the annually averaged latitude of TC genesis in the Northern Hemisphere is significantly affected by the regiona...
Published in: | Environmental Research Letters |
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ftdoajarticles:oai:doaj.org/article:e5953a8a502142e8a88085846127ab7a 2023-09-05T13:21:40+02:00 Enhanced understanding of poleward migration of tropical cyclone genesis Kaiyue Shan Xiping Yu 2020-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/abaf85 https://doaj.org/article/e5953a8a502142e8a88085846127ab7a EN eng IOP Publishing https://doi.org/10.1088/1748-9326/abaf85 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/abaf85 1748-9326 https://doaj.org/article/e5953a8a502142e8a88085846127ab7a Environmental Research Letters, Vol 15, Iss 10, p 104062 (2020) tropical cyclone genesis poleward migration rate effect of regional number variation effect of cyclone intensity tropical expansion Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2020 ftdoajarticles https://doi.org/10.1088/1748-9326/abaf85 2023-08-13T00:37:16Z The known trends of poleward migration for the tropical cyclone (TC) genesis in both hemispheres are discussed from different perspectives. It is shown that the poleward migration rate of the annually averaged latitude of TC genesis in the Northern Hemisphere is significantly affected by the regional variations of TC number in recent decades, especially an increase in the North Atlantic Ocean and a decrease in the western North Pacific Ocean. The poleward migration rates of TC genesis in the two hemispheres get closer when the effect of the regional TC number variation is excluded. The poleward migration of TC genesis without the effect of regional TC number variation is found to have a good correlation with the poleward shift of the edges of the tropics in both hemispheres. A decreasing trend of the cyclonic vorticity in the lower-troposphere over the tropical ocean regions is also identified in both hemispheres, which leads to a poleward shift of the equatorward boundary for TC genesis. The poleward migration of TC genesis after the effect of regional TC number variation is excluded and can thus be considered as a result of the tropical expansion. It is shown that the genesis of TCs with a different intensity has a different migration rate. When excluding the effect of the regional TC number variation, the poleward migration of TCs with a different intensity has a similar trend in both hemispheres. The tropical storms and intense typhoons have significant poleward migration trends, while the weak typhoons behave differently. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Pacific Environmental Research Letters 15 10 104062 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
tropical cyclone genesis poleward migration rate effect of regional number variation effect of cyclone intensity tropical expansion Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
tropical cyclone genesis poleward migration rate effect of regional number variation effect of cyclone intensity tropical expansion Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Kaiyue Shan Xiping Yu Enhanced understanding of poleward migration of tropical cyclone genesis |
topic_facet |
tropical cyclone genesis poleward migration rate effect of regional number variation effect of cyclone intensity tropical expansion Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
The known trends of poleward migration for the tropical cyclone (TC) genesis in both hemispheres are discussed from different perspectives. It is shown that the poleward migration rate of the annually averaged latitude of TC genesis in the Northern Hemisphere is significantly affected by the regional variations of TC number in recent decades, especially an increase in the North Atlantic Ocean and a decrease in the western North Pacific Ocean. The poleward migration rates of TC genesis in the two hemispheres get closer when the effect of the regional TC number variation is excluded. The poleward migration of TC genesis without the effect of regional TC number variation is found to have a good correlation with the poleward shift of the edges of the tropics in both hemispheres. A decreasing trend of the cyclonic vorticity in the lower-troposphere over the tropical ocean regions is also identified in both hemispheres, which leads to a poleward shift of the equatorward boundary for TC genesis. The poleward migration of TC genesis after the effect of regional TC number variation is excluded and can thus be considered as a result of the tropical expansion. It is shown that the genesis of TCs with a different intensity has a different migration rate. When excluding the effect of the regional TC number variation, the poleward migration of TCs with a different intensity has a similar trend in both hemispheres. The tropical storms and intense typhoons have significant poleward migration trends, while the weak typhoons behave differently. |
format |
Article in Journal/Newspaper |
author |
Kaiyue Shan Xiping Yu |
author_facet |
Kaiyue Shan Xiping Yu |
author_sort |
Kaiyue Shan |
title |
Enhanced understanding of poleward migration of tropical cyclone genesis |
title_short |
Enhanced understanding of poleward migration of tropical cyclone genesis |
title_full |
Enhanced understanding of poleward migration of tropical cyclone genesis |
title_fullStr |
Enhanced understanding of poleward migration of tropical cyclone genesis |
title_full_unstemmed |
Enhanced understanding of poleward migration of tropical cyclone genesis |
title_sort |
enhanced understanding of poleward migration of tropical cyclone genesis |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
https://doi.org/10.1088/1748-9326/abaf85 https://doaj.org/article/e5953a8a502142e8a88085846127ab7a |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environmental Research Letters, Vol 15, Iss 10, p 104062 (2020) |
op_relation |
https://doi.org/10.1088/1748-9326/abaf85 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/abaf85 1748-9326 https://doaj.org/article/e5953a8a502142e8a88085846127ab7a |
op_doi |
https://doi.org/10.1088/1748-9326/abaf85 |
container_title |
Environmental Research Letters |
container_volume |
15 |
container_issue |
10 |
container_start_page |
104062 |
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1776202257065312256 |