With the features of long duration, suddenly happening and rising, the ice flood in the Yellow River sometimes cause more intensive calamity than that of storm flood.
黄河冰凌洪水突发性强、涨势猛、持续时间长，产生的灾害有时更甚于暴雨洪水。
2
And a scaling lognormal model offlood volume is introduced to represent the affection of temporal scale ofduration in annual maximum flood volume distributions.
并提出了洪水洪量的对数正态分布模型来表征年最大洪量分布中历时的尺度影响。
3
The results demonstrate that the variation of annual maximum flood volume with duration has a simple scaling property in a certain period of time.