The results demonstrate that the variation of annualmaximumflood volume with duration has a simple scaling property in a certain period of time.
研究结果表明：在一定的历时范围内，年最大洪量随历时变化具有单标度性质。
2
On the other hand, the long-term forecast of annualmaximumflood peak discharge has been researched with the period method combined with the stochastic method.
现结合水文长期预报的特殊性，将关联规则挖掘分析方法应用于径流长期预报中。
3
And a scaling lognormal model of flood volume is introduced to represent the affection of temporal scale of duration in annualmaximumflood volume distributions.