气候变化领域集成服务门户(CCPortal): Poleward migration of western North Pacific tropical cyclones related to changes in cyclone seasonality

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DOI	10.1038/s41467-021-26369-7
	Poleward migration of western North Pacific tropical cyclones related to changes in cyclone seasonality
	Feng X.; Klingaman N.P.; Hodges K.I.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The average location of observed western North Pacific (WNP) tropical cyclones (TCs) has shifted north over the last several decades, but the cause remains not fully understood. Here we show that, for the annual average, the observed northward migration of WNP TCs is related to changes in TC seasonality, not to a northward migration in all seasons. Normally, peak-season (July–September) TCs form and travel further north than late-season (October–December) TCs. In recent decades, related to less frequent late-season TCs, seasonally higher-latitude TCs contribute relatively more to the annual-average location and seasonally lower-latitude TCs contribute less. We show that the change in TC seasonality is related to the different responses of late-season and peak-season TC occurrence to a stronger Pacific Walker Circulation. Our findings provide a perspective on long-term trends in TC activity, by decomposing the annual-average statistics into seasonal components, which could respond differently to anthropogenic forcing. © 2021, The Author(s).
语种	英语
scopus关键词	human activity; seasonality; tropical cyclone; Walker circulation; article; decomposition; El Nino; hurricane; latitude; seasonal variation; travel; Pacific Ocean; Pacific Ocean (North); Pomatiopsis californica
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250593
作者单位	National Centre for Atmospheric Science and Department of Meteorology, University of Reading, Reading, United Kingdom
推荐引用方式 GB/T 7714	Feng X.,Klingaman N.P.,Hodges K.I.. Poleward migration of western North Pacific tropical cyclones related to changes in cyclone seasonality[J],2021,12(1).
APA	Feng X.,Klingaman N.P.,&Hodges K.I..(2021).Poleward migration of western North Pacific tropical cyclones related to changes in cyclone seasonality.Nature Communications,12(1).
MLA	Feng X.,et al."Poleward migration of western North Pacific tropical cyclones related to changes in cyclone seasonality".Nature Communications 12.1(2021).