气候变化领域集成服务门户(CCPortal): Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts

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DOI	10.1016/j.atmosres.2024.107292
	Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts
	Huang, Jiancheng; Ma, Zhanhong; Zhao, Haikun; Fei, Jianfang; Chen, Lihao
发表日期	2024
ISSN	0169-8095
EISSN	1873-2895
起始页码	301
卷号	301
英文摘要	The tropical cyclone intensification rates (TCIRs) over the western North Pacific (WNP) are investigated on the basis of 6-hourly atmospheric and oceanic reanalyses and TC best track data from 1982 to 2020. Results indicate that 24-h-TCIRs over the WNP have increased remarkably by similar to 17.2% in the past four decades. A remarkable difference before and after the changepoint 2004 is detected in 24-h TCIRs over the WNP basin. The correlation between the TCIR and sea surface temperature (SST) during 2005-2020 shows a significant positive correlation over the western Pacific. Composite analyses of atmospheric and oceanic environments between P1 (1982-2004) and P2 (2005-2020) suggest greater contributions of the underlying SST and relative vorticity (VORT) than those of vertical wind shear (VWS) and mid-tropospheric relative humidity (RH) to TCIR increase. The maximum potential intensity (MPI) has increased since the 1980s, with a significant change from P1 to P2, which further demonstrates that the environmental fields since 2004 are more favorable for TC intensification. At the same time, TCIR geolocation shows a northwestward shift over the TC-active region bounded by 10 degrees similar to 25 degrees N, 125 degrees similar to 150 degrees E since 2004, which is possibly modulated by the interdecadal difference of steering flow and ocean state. This study may provide inspirations to clarify the mechanisms of WNP-TCIR interdecadal increase for general TC intensity forecast.
英文关键词	Climate change; Tropical cyclone; Intensification rate; Environmental fields; Western North Pacific
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001189048000001
来源期刊	ATMOSPHERIC RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298419
作者单位	National University of Defense Technology - China; Nanjing University of Information Science & Technology; National University of Defense Technology - China
推荐引用方式 GB/T 7714	Huang, Jiancheng,Ma, Zhanhong,Zhao, Haikun,et al. Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts[J],2024,301.
APA	Huang, Jiancheng,Ma, Zhanhong,Zhao, Haikun,Fei, Jianfang,&Chen, Lihao.(2024).Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts.ATMOSPHERIC RESEARCH,301.
MLA	Huang, Jiancheng,et al."Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts".ATMOSPHERIC RESEARCH 301(2024).