水资源保护2012，Vol.28Issue(1)：5-8,28,5.DOI:10.3969/j.issn.1004-6933.2012.01.002
黄河下游利津站入海水沙通量时序变化特征识别
Identification of characteristics of time series changes of water and sand flux at Lijin Hydrological Station in lower Yellow River
摘要
Abstract
Based on monthly water and sand flux data from Lijin Hydrological Station on the lower Yellow River from 1950 to 2009, a variety of methods were used to identify the trends, change points, and cycles of water and sand flux in multi-scale time series of a year, the flood season, and the non-flood season. The Mann-Kendall and Spearman methods were used to analyze the characteristics of the trend of water and sand flux. The wavelet decomposition and reconstruction and orderly clustering methods were used for identification of the change points of water and sand flux. The wavelet transform method was used to identify the cycle of water and sand flux." The results show that the water and sand flux into the sea decreased significantly at multiple scales at lijin Hydrological Station, there were two significant change points, in 1985 and 2002, and the results of cycle identification were different at multiple scales as well as with different hydrological factors.关键词
黄河/利津水文站/水沙通量/Mann-Kendall方法/小波分析/变化特征Key words
Yellow River/ lijin Hydrological Station/ water and sand flux/ Mann-Kendall method/ wavelet analysis/ variation characteristics分类
建筑与水利引用本文复制引用
范明元,李福林,仕玉治,陈华伟..黄河下游利津站入海水沙通量时序变化特征识别[J].水资源保护,2012,28(1):5-8,28,5.基金项目
水利部公益性行业专项(200801026) （200801026）
