气候变化领域集成服务门户(CCPortal): Revisiting the interannual impact of the Pacific Meridional Mode on tropical cyclone genesis frequency in the Western North Pacific

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DOI	10.1007/s00382-020-05515-9
	Revisiting the interannual impact of the Pacific Meridional Mode on tropical cyclone genesis frequency in the Western North Pacific
	Wu Q.; Zhao J.; Zhan R.; Gao J.
发表日期	2020
ISSN	0930-7575
英文摘要	Several studies have discussed the interannual influences of the North Pacific Meridional Mode (PMM) on the tropical cyclone (TC) in the western North Pacific (WNP). However, most of them either mixed the contributions of the PMM and Pacific decadal modes or failed to separate the PMM and El Niño-Southern Oscillation (ENSO) impacts. Here, we systematically revisited the year-to-year relationship between the PMM and WNP TC activity, including TC genesis frequency (TCGF) and TC track density (TCTD), by removing decadal variability. The results show that positive (negative) PMM events can induce anomalous basin-uniform cyclonic (anticyclonic) circulation and lead to a significant increase (decrease) in TCGF and TCTD over the WNP. The relationship between TCGF and the PMM is modulated by the ENSO events. When the positive PMM events are synchronized with the El Niño phase, they can enhance southeastern quadrant TC genesis over the WNP and increase TCTD in the whole WNP. However, when the positive PMM events are in phase with La Niña events, it shows an insignificant impact on WNP TCs due to the reverse influence of PMM and ENSO. This study emphasizes the important influence of the PMM on WNP TC activity on interannual time scale, especially during neutral ENSO years. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	El Niño-Southern Oscillation; Interannual variability; Pacific Meridional Mode; Tropical cyclones; Western North Pacific
语种	英语
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/145655
作者单位	School of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea; Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, 200433, China; Innovation Center of Ocean and Atmosphere System, Zhuhai Fudan Innovation Research Institute, Zhuhai, 518057, China; Fujian Key Laboratory of Severe Weather, Fuzhou, 350000, China
推荐引用方式 GB/T 7714	Wu Q.,Zhao J.,Zhan R.,et al. Revisiting the interannual impact of the Pacific Meridional Mode on tropical cyclone genesis frequency in the Western North Pacific[J],2020.
APA	Wu Q.,Zhao J.,Zhan R.,&Gao J..(2020).Revisiting the interannual impact of the Pacific Meridional Mode on tropical cyclone genesis frequency in the Western North Pacific.Climate Dynamics.
MLA	Wu Q.,et al."Revisiting the interannual impact of the Pacific Meridional Mode on tropical cyclone genesis frequency in the Western North Pacific".Climate Dynamics (2020).