洪水的

This thesis focus on the solution to the diffusion wave equation, specific contents are summarized as follows

但直接根据扩散波方程解进行洪水演算至今尚未在实际洪水预报中得到广泛的应用。

A model to assess the flood is worked out and concrete solutions for overlay analysis in flood assessment.

构建了洪水淹没评估模型，并对洪水淹没评估中的叠置分析提出具体解决思路。

The Huaihe Rivers floodway toward Huanghai Sea was not adequate in the past years. The huge runoff in the flood season had badly endangered the lives and fortunes of over 2000 million residents in downstream region of Huaihe River.

淮河下游洪水出路历来不足，在洪水季节，下泄流量激增，严重危及淮河下游地区2000多万人民的生命和财产安全。

The Mississippi on the history once was in for many times spring freshet, along the river low-lying flood overruns; implements water conservancy project energetically later, not be pure add expensive dam, employ several dollars to be carried out to wadi however cut a turn into parts to take straight, protect bank, dredge, the project such as build spillway and reservoir, eventually the flood of Mississippi of control of with one action.

历史上密西西比河曾经多次在春季河水暴涨，沿河低地洪水泛滥成灾；后来大力实施水利工程，不是单纯加高堤坝，而是动用数亿美元对河道实施裁弯取直、护堤、疏浚，修筑溢洪道和水库等工程，终于一举控制密西西比河的洪水。

A flood peak cut coefficient is proposed to measure the affection of the flood hydrograph for the risk calculating of the flood discharge.

本文分析了洪水过程这一不确定性因素，并用洪峰削减系数将洪水过程的不确定性量化。

Key techniques in flood hazard map ping are presented based on analyzing basic concept.

洪水风险图是实施洪水管理的重要手段和基础。

Based on the flood level frequency curve, hydrological failure risk was divided into flood overflowing risk and flood overtopping risk.

基于推求的洪水位频率曲线，将堤防水文失事风险分为洪水漫溢风险和洪水漫顶风险。

In this dissertation, as for some problems in flood forecast andreservoir regulation, the research had been done based on the special research topic dynamiccontrol on limit water level in flood season using theories of fuzzy optimizing theory,maximum entropy theory, entropy-weighted multi-objective decision making method, geneticalgorithm etc. And the research focused on evaporation calculation, fuzzy description ofcatchraent impoundage, fuzzy similarity calibration method, nolinear watershed concentrationmodel and error distribution maximum entropy model and risk computation of dynamiccontrol reservoir water level in flood season when the flood forecast and precipitation forecastare taken into consideration.

本文从洪水预报和汛限水位动态控制两个研究方向着手，以汛限水位动态控制研究专题的试点水库为工程背景，运用模糊优选理论、极大熵理论、熵权多目标决策法、遗传算法等理论，研究了蒸散发计算和流域蓄水容量的模糊描述、洪水预报模型参数的模糊相似校正方法、流域非线性汇流模型、误差分布的极大熵模型以及考虑洪水预报和降雨预报动态控制水库汛限水位的风险计算方法。

Elite that there is little they can do to protect or maintain the populace during such a catastrophe,and thus they wish to avoid any such discussions. China's greatest worry comes from rain, thecontinuous deluges that will occur during the days that follow the pole shift. Denuded of forest

中国最大的忧虑是洪水，连续不断的大洪水将会在极移后的那些日子里发生，人口过剩时代以来森林的大量砍伐及围湖造田等原因，导致这些天然的海绵无法发挥其吸水的作用，中国内陆地区将发现自己全部被冲到洪水和肆虐的河水里。

This year's autumn, the original green trees have become bare, and a great flood came, and floods indiscriminately smashed houses, washed away with people, that loggers come to the moment the flood suddenly thought: If I listening to woodpeckers, then there will not be such an outcome, hey ......

这一年的秋天，原本绿色的树林变得光秃秃的了，一场极大的洪水来了，洪水肆意地冲破了房屋，冲走了人，那个伐木工人在洪水来的一刻突然想到：如果我听啄木鸟的话，也不会有这样的结局，哎

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。