气候变化领域集成服务门户(CCPortal): Interannual and interdecadal impact of Western North Pacific Subtropical High on tropical cyclone activity

CCPortal

DOI	10.1007/s00382-019-05110-7
	Interannual and interdecadal impact of Western North Pacific Subtropical High on tropical cyclone activity
	Wu Q.; Wang X.; Tao L.
发表日期	2020
ISSN	0930-7575
起始页码	2237
结束页码	2248
卷号	54
英文摘要	In this study, we analyzed the impacts of Western North Pacific Subtropical High (WNPSH) on tropical cyclone (TC) activity on both interannual and interdecadal timescales. Based on a clustering analysis method, we grouped TCs in the Western North Pacific into three clusters according to their track patterns. We mainly focus on Cluster 1 (C1) TCs in this work, which is characterized by forming north of 15° N and moving northward. On interannual timescale, the number of C1 TCs is influenced by the intensity variability of the WNPSH, which is represented by the first Empirical Orthogonal Function (EOF) of 850 hPa geopotential height of the region. The WNPSH itself is modulated by the El Niño–Southern Oscillation at its peak phase in the previous winter, as well as Indian and Atlantic Ocean sea surface temperature anomalies in following seasons. The second EOF mode shows the interdecadal change of WNPSH intensity. The interdecadal variability of WNPSH intensity related to the Pacific climate regime shift could cause anomalies of the steering flow, and lead to the longitudinal shift of C1 TC track. Negative phases of interdecadal Pacific oscillation are associated with easterly anomaly of steering flow, westward shift of C1 TC track, and large TC impact on the East Asia coastal area. © 2020, The Author(s).
英文关键词	Clustering analysis; Interannual; Interdecadal; Tropical cyclones; Western North Pacific Subtropical High
语种	英语
scopus关键词	air-sea interaction; annual variation; climate effect; decadal variation; El Nino-Southern Oscillation; empirical orthogonal function analysis; marine atmosphere; sea surface temperature; storm track; temperature anomaly; timescale; tropical cyclone; Atlantic Ocean; Indian Ocean; Pacific Ocean; Pacific Ocean (North)
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/145605
作者单位	School of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing, 210044, China; School of Marine Science, Nanjing University of Information Science and Technology, 219 Ningliu Road, Pukou District, Nanjing, 210044, China; Joint Institute for Regional Earth System Science and Engineering, University of California at Los Angeles, Los Angeles, 90095, United States
推荐引用方式 GB/T 7714	Wu Q.,Wang X.,Tao L.. Interannual and interdecadal impact of Western North Pacific Subtropical High on tropical cyclone activity[J],2020,54.
APA	Wu Q.,Wang X.,&Tao L..(2020).Interannual and interdecadal impact of Western North Pacific Subtropical High on tropical cyclone activity.Climate Dynamics,54.
MLA	Wu Q.,et al."Interannual and interdecadal impact of Western North Pacific Subtropical High on tropical cyclone activity".Climate Dynamics 54(2020).