气候变化领域集成服务门户(CCPortal): Spatial and temporal variations of precipitation in Northwest China during 1973-2019

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DOI	10.1007/s00704-024-04884-z
	Spatial and temporal variations of precipitation in Northwest China during 1973-2019
	Wang, Yongliang; Zhang, Weijiang; Zhang, Pengcheng; Tang, Lian; Huang, Yan; Feng, Na
发表日期	2024
ISSN	0177-798X
EISSN	1434-4483
英文摘要	The Shaanxi-Gansu-Ningxia (SGN) region in Northwest China has been challenged by drought and water shortage for decades. Based on the precipitation data from 30 weather stations in the SGN region during 1973-2019, the Empirical Orthogonal Function (EOF) and the Wavelet analysis (WA) were applied to analyze the precipitation spatio-temporal variations at different time scales. The results showed that precipitation at annual scale had decreased significantly (P < 0.01) at the rate of 1.46 mm/10a during 1973-2019, and 56.7% of stations showed a decreasing trend, which was mainly concentrated in the Jing River basin. In terms of seasonal precipitation, more than 65% of the stations showed an increasing trend in summer and winter, with increasing at 2.06 mm/10a and 0.56 mm/10a, respectively, but most significantly, 86.7% of the stations showed a decreasing trend in the spring, and only less than 15% of the stations in the Hulu River basin showed an increasing trend. This study will help to further improve understanding of climate change, and provide reference to cope with future climate change and solve the problem of water shortage.
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001163670000001
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/308541
作者单位	Ningxia University
推荐引用方式 GB/T 7714	Wang, Yongliang,Zhang, Weijiang,Zhang, Pengcheng,et al. Spatial and temporal variations of precipitation in Northwest China during 1973-2019[J],2024.
APA	Wang, Yongliang,Zhang, Weijiang,Zhang, Pengcheng,Tang, Lian,Huang, Yan,&Feng, Na.(2024).Spatial and temporal variations of precipitation in Northwest China during 1973-2019.THEORETICAL AND APPLIED CLIMATOLOGY.
MLA	Wang, Yongliang,et al."Spatial and temporal variations of precipitation in Northwest China during 1973-2019".THEORETICAL AND APPLIED CLIMATOLOGY (2024).