气候变化领域集成服务门户(CCPortal): Effect of winter-to-summer El Niño transitions on tropical cyclone activity in the North Atlantic

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DOI	10.1007/s00382-019-05081-9
	Effect of winter-to-summer El Niño transitions on tropical cyclone activity in the North Atlantic
	Quan M.; Wang X.; Zhou G.; Fan K.; He Z.
发表日期	2020
ISSN	0930-7575
起始页码	1683
结束页码	1698
卷号	54
英文摘要	El Niño-Southern Oscillation (ENSO) is known to significantly modulate Atlantic tropical cyclone (TC) activity. In this paper, we separate El Niño events into El Niño resurgence (ELR) and La Niña-transition-El Niño (LAT) events according to the warm or cold ENSO phase in the preceding winter. Different influences of the two types of El Niño events on North Atlantic TC activity are explored during the hurricane season of June–November. The average number of TCs is more, with shorter average duration and slightly larger intensity during ELR events than during LAT events. There are more TCs passing through and making landfall at the Gulf of Mexico, Caribbean Sea during ELR events, indicating that TCs may have a greater impact on coastal cities of Gulf of Mexico and Caribbean Sea during ELR events than LAT events. Composite analysis reveals that thermodynamic factors such as relative humidity (RH), sea surface temperature and tropical cyclone heat potential are mainly responsible for the TC activity difference between ELR and LAT events. Genesis potential index diagnosis shows that the RH and potential intensity are the dominant factors that influence TC genesis in the MDR during ELR events. During LAT events, the relative vorticity, vertical wind shear and RH over Cape Verde are favorable for TC genesis. In summary, the preceding winter ENSO phases associated with ELR and LAT events lead to opposite changes of environmental factors, and thus induce different TC activities in ELR and LAT events. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	El Niño resurgence; ENSO; Tropical cyclone; Tropical North Atlantic
语种	英语
scopus关键词	El Nino; El Nino-Southern Oscillation; hurricane; La Nina; summer; thermodynamics; tropical cyclone; vorticity; wind shear; winter; Atlantic Ocean; Atlantic Ocean (North); Cape Verde [Macaronesia]; Caribbean Sea; Gulf of Mexico
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145630
作者单位	College of Oceanography, Hohai University, Nanjing, 210098, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
推荐引用方式 GB/T 7714	Quan M.,Wang X.,Zhou G.,et al. Effect of winter-to-summer El Niño transitions on tropical cyclone activity in the North Atlantic[J],2020,54.
APA	Quan M.,Wang X.,Zhou G.,Fan K.,&He Z..(2020).Effect of winter-to-summer El Niño transitions on tropical cyclone activity in the North Atlantic.Climate Dynamics,54.
MLA	Quan M.,et al."Effect of winter-to-summer El Niño transitions on tropical cyclone activity in the North Atlantic".Climate Dynamics 54(2020).