气候变化领域集成服务门户(CCPortal): Slower-decaying tropical cyclones produce heavier precipitation over China

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DOI	10.1038/s41612-024-00655-9
	Slower-decaying tropical cyclones produce heavier precipitation over China
	Lai, Yangchen; Gu, Xihui; Wei, Lihong; Wang, Liangyi; Slater, Louise J.; Li, Jianfeng; Shi, Donglei; Xiao, Mingzhong; Wang, Lunche; Guan, Yansong; Kong, Dongdong; Zhang, Xiang
发表日期	2024
ISSN	2397-3722
起始页码	7
结束页码	1
卷号	7 期号:1
英文摘要	The post-landfall decay of tropical cyclones (TC) is often closely linked to the magnitude of damage to the environment, properties, and the loss of human lives. Despite growing interest in how climate change affects TC decay, data uncertainties still prevent a consensus on changes in TC decay rates and related precipitation. Here, after strict data-quality control, we show that the rate of decay of TCs after making landfall in China has significantly slowed down by 45% from 1967 to 2018. We find that, except the warmer sea surface temperature, the eastward shift of TC landfall locations also contributes to the slowdown of TC decay over China. That is TCs making landfall in eastern mainland China (EC) decay slower than that in southern mainland China (SC), and the eastward shift of TCs landfall locations causes more TCs landfalling in EC with slower decay rate. TCs making landfall in EC last longer at sea, carry more moisture upon landfall, and have more favorable dynamic and thermodynamic conditions sustaining them after landfall. Observational evidence shows that the decay of TC-induced precipitation amount and intensity within 48 h of landfall is positively related to the decay rate of landfalling TCs. The significant increase in TC-induced precipitation over the long term, due to the slower decay of landfalling TCs, increases flood risks in China's coastal areas. Our results highlight evidence of a slowdown in TC decay rates at the regional scale. These findings provide scientific support for the need for better flood management and adaptation strategies in coastal areas under the threat of greater TC-induced precipitation.
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001221301400001
来源期刊	NPJ CLIMATE AND ATMOSPHERIC SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300322
作者单位	China University of Geosciences; Nanjing University of Information Science & Technology; Nanjing University of Information Science & Technology; Beijing Normal University; Beijing Normal University Zhuhai; Hong Kong Baptist University; University of Oxford; Chinese University of Hong Kong; Sun Yat Sen University; China University of Geosciences; China University of Geosciences; China University of Geosciences
推荐引用方式 GB/T 7714	Lai, Yangchen,Gu, Xihui,Wei, Lihong,et al. Slower-decaying tropical cyclones produce heavier precipitation over China[J],2024,7(1).
APA	Lai, Yangchen.,Gu, Xihui.,Wei, Lihong.,Wang, Liangyi.,Slater, Louise J..,...&Zhang, Xiang.(2024).Slower-decaying tropical cyclones produce heavier precipitation over China.NPJ CLIMATE AND ATMOSPHERIC SCIENCE,7(1).
MLA	Lai, Yangchen,et al."Slower-decaying tropical cyclones produce heavier precipitation over China".NPJ CLIMATE AND ATMOSPHERIC SCIENCE 7.1(2024).