Multi-Time Scale Analysis of Runoff at the Yangtze Estuary Based on the Morlet Wavelet Transform Method

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2014 > Vol11 No.6

	Multi-Time Scale Analysis of Runoff at the Yangtze Estuary Based on the Morlet Wavelet Transform Method
	KUANG Cui-ping ; SU Ping ; GU Jie ; CHEN Wu-jun ; ZHANG Jian-le ; ZHANG Wan-lei ; ZHANG Yong-feng
刊名	Journal of Mountain Science
	2014-11
卷号	11 期号:6 页码:1499-1506
关键词	Datong station Wavelet transform Runoff series Periodic characteristics
通讯作者	GU Jie
英文摘要	Runoff series of the Yangtze River presents an intricate variation tendency under the reinforced influence of human activities. The Morlet Wavelet Transform method has been applied to analyze the annual runoff data from 1950 to 2011 at the Yangtze River Estuary. It can clearly reveal the multi-time scales structure, break point, change and distribution of periodic variation in the different time scales of the runoff series. The main conclusions are that: 1) Repeated periodic oscillations accompanied by an extremely large fluctuation are presented in the runoff series with an obvious difference between wet and dry years, and the major periods of the time series are about 3, 8, 16 and 23 years respectively. Among them, the presented maximum periodic oscillation is 23 years scale. 2) In the 23-year time scale, the wet periods are 1950-1958, 1969-1980 and 1992-2003, and the dry periods are 1959-1968, 1981-1991 and 2004-2011. 3) It can be predicted from the view of long time scales that the low annual runoff will likely occur in the near future.
收录类别	SCI
公开日期	2014-11-18
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/7418]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.6
推荐引用方式 GB/T 7714	KUANG Cui-ping,SU Ping,GU Jie,et al. Multi-Time Scale Analysis of Runoff at the Yangtze Estuary Based on the Morlet Wavelet Transform Method[J]. Journal of Mountain Science,2014,11(6):1499-1506.
APA	KUANG Cui-ping.,SU Ping.,GU Jie.,CHEN Wu-jun.,ZHANG Jian-le.,...&ZHANG Yong-feng.(2014).Multi-Time Scale Analysis of Runoff at the Yangtze Estuary Based on the Morlet Wavelet Transform Method.Journal of Mountain Science,11(6),1499-1506.
MLA	KUANG Cui-ping,et al."Multi-Time Scale Analysis of Runoff at the Yangtze Estuary Based on the Morlet Wavelet Transform Method".Journal of Mountain Science 11.6(2014):1499-1506.