气候变化领域集成服务门户(CCPortal): Spatial and Temporal Variability Characteristics and Driving Factors of Extreme Precipitation in the Wei River Basin

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DOI	10.3390/w16020217
	Spatial and Temporal Variability Characteristics and Driving Factors of Extreme Precipitation in the Wei River Basin
	Yu, Yingdong; Wang, Mengran; Liu, Zihua; Liu, Tong; Dunkerley, David
发表日期	2024
EISSN	2073-4441
起始页码	16
结束页码	2
卷号	16 期号:2
英文摘要	As global climate change intensifies, the global atmospheric circulation process is undergoing significant changes, and the local water vapor pattern has also changed. This study takes the Wei River Basin as the research area. Firstly, an evaluation index system for extreme precipitation was established, and the time-series characteristics of the magnitude, frequency, and duration of extreme precipitation were analyzed. Statistical methods were used to analyze the non-consistency in time-series changes in extreme precipitation indicators. Using spatial heterogeneity analysis methods, the spatial variation differences in extreme precipitation in the Wei River Basin were identified. This study selected the El Nino-Southern Oscillation (ENSO) index, global land-ocean temperature index (LOTI), and land surface temperature (LST) index to quantitatively evaluate the impact of climate change on regional extreme precipitation and analyzed the correlation between temperature and extreme precipitation, identifying the key driving factors of extreme precipitation changes. The conclusions of this study are as follows: (1) The southern region of the Wei River Basin experiences more frequent and intense precipitation events, while the northern region experiences relatively few. (2) From 1981 to 2021, the intensity, frequency, and duration of precipitation events in the Wei River Basin gradually increased, with the most significant increase in extreme precipitation in the Guanzhong Plain. (3) Global climate change has an important impact on precipitation events in the Wei River Basin. The increase in the ENSO, LOTI, and LST indices may indicate an increase in the probability of drought and flood events in the Wei River Basin. The relationships between extreme precipitation and temperature present a peak structure. This conclusion is helpful to better understand the impact of climate change on extreme precipitation in the Wei River Basin and provides some support for the response to extreme meteorological events under the background of future climate change.
英文关键词	extreme precipitation; rainfall index; driving factors; climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:001150922600001
来源期刊	WATER
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307016
作者单位	China Institute of Water Resources & Hydropower Research; China Institute of Water Resources & Hydropower Research; Tianjin Normal University
推荐引用方式 GB/T 7714	Yu, Yingdong,Wang, Mengran,Liu, Zihua,et al. Spatial and Temporal Variability Characteristics and Driving Factors of Extreme Precipitation in the Wei River Basin[J],2024,16(2).
APA	Yu, Yingdong,Wang, Mengran,Liu, Zihua,Liu, Tong,&Dunkerley, David.(2024).Spatial and Temporal Variability Characteristics and Driving Factors of Extreme Precipitation in the Wei River Basin.WATER,16(2).
MLA	Yu, Yingdong,et al."Spatial and Temporal Variability Characteristics and Driving Factors of Extreme Precipitation in the Wei River Basin".WATER 16.2(2024).