气候变化领域集成服务门户(CCPortal): Spatiotemporal characteristics of extreme precipitation at multiple timescales over Northeast China during 1961

CCPortal

DOI	10.2166/wcc.2017.157
	Spatiotemporal characteristics of extreme precipitation at multiple timescales over Northeast China during 1961–2014
	Yang X.J.; Xu Z.X.; Liu W.F.; Liu L.
发表日期	2017
ISSN	20402244
起始页码	535
结束页码	556
卷号	8 期号:3
英文摘要	Few studies of extreme precipitation have been conducted in Northeast China, particularly at multitimescales. We aim to enhance the understanding of changes and variability in extreme precipitation over the past 54 years (1961–2014) in this region. We have investigated the potential relationship among extreme precipitation, climate and agricultural drought focusing on several timescales in this region. Thirteen extreme precipitation indices at seasonal, annual, and growing-period scales were estimated on the basis of daily precipitation data from 70 meteorological stations. The results indicate that all extreme precipitation indices that reflect the features of extreme wet events showed increasing trends in spring, and the trends of these indices were almost negative for the other timescales. Spatially, the frequency, duration and intensity of extreme wet events decreased gradually from south to north. The range of influence and the duration of extreme dry events increased continuously in Northeast China. In Northeast China, extreme precipitation was more easily influenced by the polar climate than the monsoon. Furthermore, correlation between the extreme precipitation indices and comprehensive crop failure ratios of agricultural drought disasters (C index) confirmed that agricultural drought was heavily influenced by precipitation anomalies in this area. © IWA Publishing 2017.
英文关键词	C index; Climate index; Modified Mann–Kendall (MMK) test; Multi-timescale; Pettitt’s test; Teleconnection
语种	英语
scopus关键词	Agriculture; Drought; Agricultural drought disasters; Climate index; Extreme precipitation; Meteorological station; Precipitation anomalies; Spatiotemporal characteristics; Teleconnections; Time-scales; Precipitation (meteorology); drought; extreme event; precipitation (climatology); regional climate; spatiotemporal analysis; statistical analysis; teleconnection; timescale; China
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148089
作者单位	College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Hydrological Cycle and Sponge City Technology, Beijing, 100875, China; Key laboratory of Water and Sediment Sciences, Ministry of Education; College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China; EAWAG, Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, Duebendorf, CH-8600, Switzerland; College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063210, China
推荐引用方式 GB/T 7714	Yang X.J.,Xu Z.X.,Liu W.F.,等. Spatiotemporal characteristics of extreme precipitation at multiple timescales over Northeast China during 1961–2014[J],2017,8(3).
APA	Yang X.J.,Xu Z.X.,Liu W.F.,&Liu L..(2017).Spatiotemporal characteristics of extreme precipitation at multiple timescales over Northeast China during 1961–2014.Journal of Water and Climate Change,8(3).
MLA	Yang X.J.,et al."Spatiotemporal characteristics of extreme precipitation at multiple timescales over Northeast China during 1961–2014".Journal of Water and Climate Change 8.3(2017).