摘要
以漳河流域岳城水库为例,采用PPCC检验法对坝前年最高水位常用的几种分布线型进行对比分析。结果表明,实测值和理论值的拟合效果中耿贝尔分布最差、P-Ⅲ型与LP-Ⅲ型分布较好、三参数对数正态分布最好,建议将三参数对数正态分布作为岳城水库坝前年最高水位的分布线型。
In this paper, taking Yuecheng reservoir of Zhanghe basin as an example, PPCC test is applied to compare several common distributions of the maximum annual water level of reservoir. The results showed that three parameters lognormal distribution fit best and Gumbel distribution fit worst while P-Ⅲ distribution and LP-Ⅲ distribution were superior to the rest distributions. Therefore, three parameters lognormal distribution is proposed to describe the maximum annual water level of Yuecheng reservoir.
出处
《水电能源科学》
2008年第2期48-50,共3页
Water Resources and Power
关键词
坝前年最高水位
PPCC检验法
三参数对数正态分布
maximum annual water level of reservoir
PPCC test
three parameters lognormal distribution
