郑州黄河洪水特点分析

郑州黄河不同来源区的洪水有着不同的特点，洪水在运行过程中与河床交互作用，水流与河床、滩地与主槽俱发生泥沙交换；生产堤的存在改变了洪水正常的演进规律；洪水的传播时间和水位表现受多种因素的制约；高含沙洪水对防洪工程威胁大，有其突出的特点；洪水预测是一项深入、细致、复杂的工作，黄河水文资料应该向流域内外专家学者开放。

Analysis of Yellow River Flood Characteristics in Zhengzhou

In Zhengzhou, Yellow River floods from different sources have different characteristics; in the course of flood running, interaction effect occurs between the flood and river bed, and sediment exchange also occurs between water flow, river bed, flood plain and main channel; construction of production dyke changes the advancing regular pattern of the flood; travel time and water level of flood are affected by various factors; the flood carrying hyperconcentrated sediment which brings serious threat to flood control projects has its outstanding characteristics; flood forecasting is a deep, detailed and complicated work, and hydrological data of the Yellow River flood should be open to the experts and scholars within and outside the Yellow River basin.