分形分析法在汛期分期中的应用

Application of fractal analysis method in division of flood season

在利用分形理论相对度量法计算容量维数进行汛期分期分析的基础上,提出采用绝对度量法计算容量维数进行汛期分期分析的方法,并将该方法应用于闽江上游流域建阳市的汛期分期分析,把汛期划分为前汛期、主汛期和后汛期.结果表明,分形分析法可揭示建阳市暴雨洪水发生的季节特性和分期规律,从而为汛期防汛指挥调度提供科学依据.

On the basis of utilizing relative measure method of fractal theory to calculate capacity di- mension to analyze stage division of flood season, it is put forward that adopting absolute measure method to calculate capacity dimension to analyze stage division of flood season. This method is ap- plied to stage division analysis of flood season of Jianyang city in the upper Minjiang River, and then flood season is divided into three stages ： pre - flood period, main flood period, back flood period. The results show fractal analysis method can be used for analyzing the season characteristic and stage divi- sion law of rainstorm flood of Jianyang city in the upper Minjiang River, thus provides scientific basis for flood orevention and deolovment in flood season.