干旱区生态环境知识资源中心(Arid): Spatiotemporal patterns in persistent precipitation extremes of the Chinese mainland (1961-2022) and association with the dynamic factors

Arid

DOI	10.1016/j.atmosres.2024.107600
	Spatiotemporal patterns in persistent precipitation extremes of the Chinese mainland (1961-2022) and association with the dynamic factors
	Wan, Wuyi; Zhou, Yu
通讯作者	Zhou, Y
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2024
卷号	310
英文摘要	Previous studies on extreme precipitation events have primarily focused on the intensity of such events during fixed periods, without considering the entirety of extreme precipitation events and conducting a comprehensive examination of the intensity and frequency of more disastrous persistent extreme precipitation (PEP) events. In this paper, persistent extreme precipitation indices (PEPIs) related to intensity, frequency, duration, and contribution rates were constructed, utilizing a gridded daily precipitation dataset and atmospheric circulation indices data from China for the period 1961-2022 to analyze the spatial distribution, spatiotemporal trends, and seasonal patterns and variations of PEPIs across different regions of China and the potential impact of the dynamic factors on the spatiotemporal variations of PEPIs. The results are crucial for effectively predicting future changes and informing planning for adaptation strategies: From 1961 to 2022, (1) China's PEP pattern displays distinct regional variations. PEP has been prevalent in Western Arid (Semi-Arid) Zone (WAS) and Qinghai-Tibet Plateau (QT) regions, with higher occurrence frequency, duration, and contribution rates to total extreme precipitation (44.91% and 42.01%) and overall precipitation (26.35% and 29.08%). Conversely, the humid eastern regions exhibit greater event intensity. (2) Intensity-related PEPIs show a significant increase, while the frequency and contribution rate-related PEPIs tend to decrease, indicating less frequent but more concentrated PEP events. (3) Seasonal distribution of PEP events shows a primary concentration in QT, North China (N), the Eastern arid zone (EA), and Northeast China (NE) from June to September and they occur more frequently during spring and summer in Central (C) and South China (S) regions. Summer variations predominantly account for annual PEP variability and trends. (4) WPSHII, SCSSHII, WPWPSII, APVII, NHPVII, NINO3 predominantly affect the WAS, QT, NE, C, and S regions, with WPSHII having the broadest impact, notably on the QT, C, S, and NE regions. In the WAS region during autumn, the interaction of NAO and WPSHII explains 72% of the intensity of PEP events.
英文关键词	Persistent extreme precipitation Spatio-temporal change Grid data Large scale circulation index
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001288743200001
WOS关键词	RAINFALL EVENTS ; SUMMER MONSOON ; RIVER-BASIN ; OSCILLATION ; VARIABILITY ; REGRESSION ; INDEXES ; DATASET ; TRENDS ; ASIA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402997
推荐引用方式 GB/T 7714	Wan, Wuyi,Zhou, Yu. Spatiotemporal patterns in persistent precipitation extremes of the Chinese mainland (1961-2022) and association with the dynamic factors[J],2024,310.
APA	Wan, Wuyi,&Zhou, Yu.(2024).Spatiotemporal patterns in persistent precipitation extremes of the Chinese mainland (1961-2022) and association with the dynamic factors.ATMOSPHERIC RESEARCH,310.
MLA	Wan, Wuyi,et al."Spatiotemporal patterns in persistent precipitation extremes of the Chinese mainland (1961-2022) and association with the dynamic factors".ATMOSPHERIC RESEARCH 310(2024).