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Changes in extreme precipitation in the Wei River Basin of China during 1957-2019 and potential driving factors

文献类型：期刊论文

作者Qiu, Dexun1,2; Wu, Changxue3; Mu, Xingmin1,2,3; Zhao, Guangju1,2,3; Gao, Peng1,2,3
刊名THEORETICAL AND APPLIED CLIMATOLOGY
出版日期2022-05-23
页码15
ISSN号0177-798X
DOI10.1007/s00704-022-04101-9
通讯作者Mu, Xingmin(xmmu@ms.iswc.ac.cn) ; Gao, Peng(gaopeng@ms.iswc.ac.cn)
英文摘要Extreme precipitation poses a severe threat to the natural ecosystem, socioeconomic development, and human life. Investigating the spatiotemporal variations in extreme precipitation and exploring the potential drivers have implications for disaster risk reduction and water resource management. In this study, we analyzed the changes in nine extreme precipitation indices (EPIs) over the Wei River Basin (WRB) during 1957-2019. Furthermore, we assessed the effect of geographic factors (latitude, longitude, and altitude) on the spatial distribution of EPIs and the potential impact of ocean-atmosphere circulation on the temporal variability of EPIs. The results indicate that six EPIs present a downward trend and three EPIs show an upward trend, but all the trends are not significant. In the seasonal scale, max 1-day precipitation amount (RX1day) increases significantly in summer (P < 0.05), while the trends in max 5-day precipitation amount (RXSday) are not significant in all seasons. The period of about 8 years and less than 3 years were observed in most EPIs. The mean values of EPIs except consecutive dry days (CDD) gradually increase from northwest to southeast of the WRB. Latitude, longitude, and altitude are important factors affecting the spatial distribution of the extreme precipitation. Southern Oscillation Index (SOI) and Atlantic Multidecadal Oscillation (AMO) contribute the most to EPIs variation. Interdecadal and interannual oscillations occur between most EPIs and ocean-atmospheric circulation factors, but their phase relationships are different. Our findings highlight the importance of examining global and local driving factors of trend in regional extreme precipitation by a systematic approach, and help to further understand the precipitation changes in the WRB.
WOS关键词NINO SOUTHERN-OSCILLATION ; CLIMATE-CHANGE ; WAVELET COHERENCE ; MOUNTAINS REGION ; NON-STATIONARITY ; NORTHEAST CHINA ; VARIABILITY ; TRENDS ; IDENTIFICATION ; EVENTS
资助项目National Key Research and Development Program of China[2017YFE0118100-1]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000800973200001
出版者SPRINGER WIEN
资助机构National Key Research and Development Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/178121]  
专题中国科学院地理科学与资源研究所
通讯作者Mu, Xingmin; Gao, Peng
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Qiu, Dexun,Wu, Changxue,Mu, Xingmin,et al. Changes in extreme precipitation in the Wei River Basin of China during 1957-2019 and potential driving factors[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2022:15.
APA Qiu, Dexun,Wu, Changxue,Mu, Xingmin,Zhao, Guangju,&Gao, Peng.(2022).Changes in extreme precipitation in the Wei River Basin of China during 1957-2019 and potential driving factors.THEORETICAL AND APPLIED CLIMATOLOGY,15.
MLA Qiu, Dexun,et al."Changes in extreme precipitation in the Wei River Basin of China during 1957-2019 and potential driving factors".THEORETICAL AND APPLIED CLIMATOLOGY (2022):15.

入库方式： OAI收割

来源：地理科学与资源研究所

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