干旱区生态环境知识资源中心(Arid): Spatiotemporal variability in extreme precipitation and associated large-scale climate mechanisms in Central Asia from 1950 to 2019

Arid

DOI	10.1016/j.jhydrol.2023.129417
	Spatiotemporal variability in extreme precipitation and associated large-scale climate mechanisms in Central Asia from 1950 to 2019
	Wei, Wei; Zou, Shan; Duan, Weili; Chen, Yaning; Li, Shuai; Zhou, Yiqi
通讯作者	Zou, S ; Duan, WL
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2023
卷号	620
英文摘要	Increased sea surface temperature, evaporation, air temperature, and moisture holding capacity associated with climate change may the enhance transport of moisture to Central Asia (CA), resulting in increased extreme precipitation events (EPEs). Changes in EPEs may affect the socioeconomic and ecological environment in typical arid and semi-arid regions of CA. Therefore, based on meteorological station data and four reanalyzed precip-itation datasets, we used the Taylor diagram, Geo-Detector method, and other methods to examine 10 EPE indices in CA from 1950 to 2019, analyzed their spatial-temporal trends, and quantified the influence of large-scale climate factors on EPEs. The results showed that GSWP3_W5E5 was the optimal option with better per-formance in terms of monthly and annual precipitation in CA. Overall, EPEs in CA showed an increasing trend, but an abrupt point was found in 1986, when very wet day precipitation (R95p) increased from 36.64 to 47.84 mm; the increasing rate also changed from 0.8 to 5.06 mm/10a. The changes in the Northern Hemisphere Subtropical High Intensity Index (NSI), NINO B Area Sea Surface Temperature Anomaly Index (NINOB), Asian Zonal Circulation Index, and Atlantic Multidecadal Oscillation Index are the main reasons for the increase in EPEs; the NSI and NINOB had the largest contributions to EPEs, with at 44.32 % and 43.80 %, respectively. Additionally, two-factor interactions had a more significant influence. Further analysis revealed that the abnormal warming of sea surface temperature and others led to the strengthen of water vapor transport in CA caused by a series of cyclones and anticyclonic anomalies in the westerly circulation zone, leading to the increase of EPEs. The results obtained in this study can contribute to a more comprehensive understanding of the changes in EPEs and provide a reference for water resource management and disaster prevention in CA.
英文关键词	Extreme precipitation Large-scale climate factors Central Asia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000972104200001
WOS关键词	ATMOSPHERIC CIRCULATION ; CHINA ; TEMPERATURE ; EVENTS ; TRENDS ; ATTRIBUTION ; RAINFALL ; IMPACT ; REGION ; RISK
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397396
推荐引用方式 GB/T 7714	Wei, Wei,Zou, Shan,Duan, Weili,et al. Spatiotemporal variability in extreme precipitation and associated large-scale climate mechanisms in Central Asia from 1950 to 2019[J],2023,620.
APA	Wei, Wei,Zou, Shan,Duan, Weili,Chen, Yaning,Li, Shuai,&Zhou, Yiqi.(2023).Spatiotemporal variability in extreme precipitation and associated large-scale climate mechanisms in Central Asia from 1950 to 2019.JOURNAL OF HYDROLOGY,620.
MLA	Wei, Wei,et al."Spatiotemporal variability in extreme precipitation and associated large-scale climate mechanisms in Central Asia from 1950 to 2019".JOURNAL OF HYDROLOGY 620(2023).