Changes in spatiotemporal pattern of precipitation over China during   1980-2012

doi:10.1007/s12665-014-3517-x

CORC > 北京大学 > 城市与环境学院

	Changes in spatiotemporal pattern of precipitation over China during 1980-2012
	Feng, Yao ; Zhao, Xinyi
刊名	environmental earth sciences
	2015
关键词	Precipitation indices Precipitation day Precipitation amount Precipitation duration Extreme events Contribution TRENDS EXTREMES INDEXES SUMMER TEMPERATURE VARIABILITY FREQUENCY INTENSITY EVENTS ASIA
DOI	10.1007/s12665-014-3517-x
英文摘要	A gridded data set of daily precipitation records together with percentile-based precipitation indices was utilized to analyze changes in spatiotemporal pattern of precipitation across China in the last 33 years (1980-2012). Identifiable changes in precipitation structure and distinctive spatial variations in precipitation trends were detected at both annual and seasonal timescales. Generally, a slight but discernable increasing trend was observed in annual precipitation, and precipitation increased during summer and winter but decreased in spring and autumn. In addition, great differences were distinguished in the aspects of precipitation day, precipitation amount and precipitation duration among light, moderate and heavy precipitation. Additional analyses of extreme events including wet day, very wet day, daily maximum precipitation, short dry period and long dry period, were also performed, which indicated an upward trend in days with more precipitation. Study of contributions to the precipitation day and amount showed that light and moderate precipitation contributed greatly to the precipitation day while moderate and heavy precipitation contributed greatly to the precipitation amount. Finally, it could be concluded that it was getting drier in southeast China but wetter in southwest China, with severe droughts in northwest China being relieved during the last 33 years.; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources; SCI(E); EI; 1; ARTICLE; sh-zhao@urban.pku.edu.cn; 4; 1649-1662; 73
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160843]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Feng, Yao,Zhao, Xinyi. Changes in spatiotemporal pattern of precipitation over China during 1980-2012[J]. environmental earth sciences,2015.
APA	Feng, Yao,&Zhao, Xinyi.(2015).Changes in spatiotemporal pattern of precipitation over China during 1980-2012.environmental earth sciences.
MLA	Feng, Yao,et al."Changes in spatiotemporal pattern of precipitation over China during 1980-2012".environmental earth sciences (2015).