青铜峡站天然年径流量枯水段周期变化分析  

Analysis on Approximate Periodicity of Annual Runoff Series at Qingtongxia Station

作　　者：李玉山[1] 王志勇[1] 芮江峰[2] 李玉珍[2] 

机构地区：[1]黄河水利委员会水文局,河南郑州450004 [2]黄河水利委员会中游水文水资源局,山西晋中030600

出　　处：《人民黄河》2012年第6期43-44,共2页Yellow River

摘　　要：介绍了轮次分析法的概念和负轮长的计算方法,并对黄河青铜峡水文站1922—1933年的12 a枯水段进行了分析,对其重现期进行了预测。结果表明:青铜峡站1723—2000年天然径流量的多年平均负轮长为1.976 a;连续12 a枯水段在整个天然年径流量系列中的重现期约为419 a。The concept of runs analysis method and the calculation method of negative run length were introduced in this article. As an example, the negative run length of the annual natural runoff series from 1723 to 2003 of Qingtongxia Hydrological Station was computed. The results show that the negative run length of the annual natural runoff series of Qingtongxia is 1. 976 yrs; the return period of the continuous dry period of 12 yrs from 1922 to 1933 is about 419 yrs in the total series.

关 键 词：轮次分析法 周期 枯水段 天然年径流 青铜峡站 

分 类 号：P333[天文地球—水文科学] TV882.1[水利工程—水文学及水资源]