| 适线法在洪水超定量系列频率分析中的应用研究 |
| |
| 引用本文： | 周川,陈元芳,魏琳,程龙,黄琴,曹雪芹. 适线法在洪水超定量系列频率分析中的应用研究[J]. 水电能源科学, 2011, 29(3) |
| |
| 作者姓名： | 周川 陈元芳 魏琳 程龙 黄琴 曹雪芹 |
| |
| 作者单位： | 1. 河海大学,水文水资源学院,江苏,南京,210098
2. 水利部海河水利委员会水文局,天津,300170 |
| |
| 摘 要： | 为使超定量洪水的应用更方便有效,将适线法应用于洪水超定量系列频率分析中.以长江宜昌站日平均流量为例,利用独立性判别标准以确保超定量系列的独立性,选取合适的门限值形成洪水超定量系列.采用GP分布描述洪水超定量系列,利用适线法进行频率分析.结果表明,超定量洪水可扩大已有观测资料的信息使用量,且传统的适线法在基于GP分布的洪水超定量系列中应用效果良好.
|
| 关 键 词： | 适线法 洪水超定量 GP分布 洪水频率曲线 洪水重现期 取样标准 |
Application of Fitting-curve Method to Frequency Analysis of POT Flood Series |
| |
| ZHOU Chuan,CHEN Yuanfang,WEI Lin,CHENG Long,HUANG Qin,CAO Xueqin. Application of Fitting-curve Method to Frequency Analysis of POT Flood Series[J]. International Journal Hydroelectric Energy, 2011, 29(3) |
| |
| Authors: | ZHOU Chuan CHEN Yuanfang WEI Lin CHENG Long HUANG Qin CAO Xueqin |
| |
| Affiliation: | ZHOU Chuan1,CHEN Yuanfang1,WEI Lin2,CHENG Long1,HUANG Qin1,CAO Xueqin1(1.College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China,2.Hydrology Bureau of Hai River Water Conservancy Commission,Ministry of Water Resources,Tianjin 300170,China) |
| |
| Abstract: | In order to make the method of peaks over threshold(POT) more effective and convenient,curve-fitting method is applied to analyze POT flood frequency.Taking the daily average discharge of Yichang gauged station in the Yangtze River for an example,the appropriate threshold is selected to form a series of POT flood and its independence is guaranteed by using independence criterion.And then the POT flood series is described with the GP distribution.Finally,the curve-fitting method is used to analyze flood freq... |
| |
| Keywords: | fitting-curve method POT flood GP distribution flood frequency curve flood return period sampling criterion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
