The Analysis of the Characteristics of Annual Runoff Series through Wavelet Coefficients
A runoff-sequence contains many frequencies,from the point of the wavelet transformation,they are included in different wavelet coefficients.Therefore,when a smooth wavelet function is used,changes in multi-time scale and jump characteristics of precipitation time series have been probed the tendency.Wavelet transform can clearly demonstrate all kinds of characteristics of precipitation runoff series: the strength and distribution of time scales. The monthly data used in this paper comes from Guidei hydrology station of Yellow River (1919-1994) and Yichang hydrology station of Yangtze River (1946-1976),and the yearly ones from Yichang hydrology station (1882-1984).
wavelet coefficient runoff-sequence Multi-Scale dry season high water season period
Liu Suyi
College of Electronics and Information Engineering,Wuhan University of Science and Engineering,Wuhan,China
国际会议
哈尔滨
英文
575-578
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）