水力发电2017，Vol.43Issue(6)：97-99,114,4.
基于广义Pareto分布的大坝预警指标拟定方法
Warning Index Development of Dam Monitoring Based on Generalized Pareto Distribution
摘要
Abstract
It's an effective method to develop warning index of dam monitoring by using generalized Pareto distribution of extreme value theory.By setting a threshold value,the overrun samples are selected from monitoring data which exceed the threshold value and the samples are considered to obey generalized Pareto distribution.Since the accuracy of parameters of generalized Pareto distribution is affected by the selection of threshold value and the threshold value which is computed by exceeded expectation diagram method has a large subjective error,therefore,the auto select method of threshold value isestablished through mathematical derivation from the definition.The result of case study indicates that the warning index of dam monitoring which are developed by using generalized Pareto distribution are more reasonable.关键词
大坝预警指标/广义Pareto分布/自动选取法/阈值Key words
warning index of dam monitoring/generalized Pareto distribution/auto select method/threshold value分类
建筑与水利引用本文复制引用
张海龙,马斌,梁亚平..基于广义Pareto分布的大坝预警指标拟定方法[J].水力发电,2017,43(6):97-99,114,4.基金项目
陕西省教育厅科学研究项目(15JK2171) （15JK2171）
