基于Matlab的水库年径流序列变化周期及趋势性分析  

Analysis of variation period and trend of annual runoff series based on Matlab

作　　者：徐金英 胡明庭 XU Jinying;HU Mingting(Huadian Electric Power Research Institute Compang Limited, Hangzhou 310030, China;Power ChinaHuadong Engineering Corporation Limited, Hangzhou 311122, China)

机构地区：[1]华电电力科学研究院有限公司,杭州310030 [2]中国电建集团华东勘测设计研究院有限公司,杭州311122

出　　处：《华电技术》2019年第2期22-25,共4页HUADIAN TECHNOLOGY

摘　　要：以某流域龙头水库为研究对象,选取1952—2013年的年径流资料,基于Matlab计算程序,采用连续功率谱分析、Kendall秩次检验分析、Spearman秩次检验分析方法分析龙头水库年径流序列的变化周期及趋势性,得到了该水库年径流序列无显著变化周期且呈缓慢减少趋势的结论。Taking the leading reservoir of a basin as research object, the annual runoff data from 1952 to 2013 was selected. Based on Matlab calculation,the variation period and trend of the annual runoff series of the leading reservoirs in the basin are analyzed by continuous power spectrum method, Kendall rank correlation test and Spearman rank correlation test. The results indicate that there were no obviously change period but a slightly decreasing trend in the annual runoff series of the leading reservoir.

关 键 词：MATLAB 年径流序列 变化周期 变化趋势 水库 

分 类 号：P333[天文地球—水文科学]