The Controlling of the Subtropical High Leading Modes on the Spatial Pattern of Tropical Cyclone Genesis in the Western North Pacific and Tracks Landing on the East Coast of China

doi:10.3390/atmos13010079

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	The Controlling of the Subtropical High Leading Modes on the Spatial Pattern of Tropical Cyclone Genesis in the Western North Pacific and Tracks Landing on the East Coast of China
	Fan, Tingting 1; Yang, Yuxing 2,3,4; Xu, Shibin 5
	2022
发表期刊	ATMOSPHERE
卷号	13 期号:1 页码:13
通讯作者	Yang, Yuxing([email protected])
摘要	As a prime circulation system, the western Pacific subtropical high (WPSH) significantly impacts tropical cyclone (TC) activities over the western North Pacific (WNP), especially TCs landing on the east coast of China; however, the associated mechanism is not firmly established. This study investigates the underlying dynamic impact of the first two empirical orthogonal function (EOF) modes of the WPSH on the interannual variability in the genesis and number of TCs landing over the WNP. The results show that these two dominant modes control the WNP TC activity over different subregions via different environmental factors. The first mode (EOF1) affects the TC genesis number over region I (105 degrees-128 degrees E, 5 degrees-30 degrees N) (r = -0.49) and region II (130 degrees-175 degrees E, 17 degrees-30 degrees N) (r = -0.5) and controls the TCs landing on the east coast of China, while the second mode (EOF2) affects the TC genesis number over region III (128 degrees-175 degrees E, 5 degrees-17 degrees N) (r = -0.69). The EOF1 mode, a southwest-northeast-oriented enhanced pattern, causes the WPSH to expand (retreat) along the southwest-northeast direction, which makes both mid-low-level relative humidity and low-level vorticity unfavorable (favorable) for TC genesis in region I and region II and steers fewer (more) TC tracks to land on the coast of China. The EOF2 mode features a strengthened WPSH over the southeast quarter of the WNP region. The active (inactive) phases of this mode control the low-level vorticity and vertical wind shear in region III, which lead to less (more) TC genesis over this region. The prediction equations combining the two modes of the WPSH for the total number of TCs and TCs that make landfall show high correlation coefficients. Our findings verify the high prediction skill of the WPSH on WNP TC activities, provide a new way to predict TCs that will make landfall on the east coast of China, and help to improve the future projection of WNP TC activity.
关键词	subtropical high tropical cyclone inter-annual variability forecast
DOI	10.3390/atmos13010079
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000757400900001
出版者	MDPI
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178066
专题	中国科学院海洋研究所
通讯作者	Yang, Yuxing
作者单位	1.Qingdao Univ Sci & Technol, Sch Math & Phys, Shandong Adv Optoelect Mat & Technol Engn Lab, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chengdu Univ Informat Technol, Coll Optoelect Engn, Chengdu 610225, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 5.Ocean Univ China, Dept Marine Meteorol, Qingdao 266100, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Fan, Tingting,Yang, Yuxing,Xu, Shibin. The Controlling of the Subtropical High Leading Modes on the Spatial Pattern of Tropical Cyclone Genesis in the Western North Pacific and Tracks Landing on the East Coast of China[J]. ATMOSPHERE,2022,13(1):13.
APA	Fan, Tingting,Yang, Yuxing,&Xu, Shibin.(2022).The Controlling of the Subtropical High Leading Modes on the Spatial Pattern of Tropical Cyclone Genesis in the Western North Pacific and Tracks Landing on the East Coast of China.ATMOSPHERE,13(1),13.
MLA	Fan, Tingting,et al."The Controlling of the Subtropical High Leading Modes on the Spatial Pattern of Tropical Cyclone Genesis in the Western North Pacific and Tracks Landing on the East Coast of China".ATMOSPHERE 13.1(2022):13.

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