| 扩散波的时空反演与洪水实时预报技术 |
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| 引用本文： | 李兰.扩散波的时空反演与洪水实时预报技术[J].水文,1998(6):1-5. |
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| 作者姓名： | 李兰 |
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| 作者单位： | 武汉水利电力大学 |
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| 摘 要： | 以扩散波方程描述天然河道中的洪水波运动规律。将数学物理反问题理论和离散反演算法与河道流量演算相结合提出了扩散波实时预报的方法。该法的特点是在求解流量场Ｑ（ｘ，ｔ）的同时反演计算扩散波波速Ｃ（ｘ，ｔ）和扩散系数Ｄ（ｘ，ｔ），根据不断监测的新信息系列，直接利用原偏微分方程进行参数的实时校正和预报过程实时修正。
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| 关 键 词： | 扩散波 流量演算 时空反演 洪水 实时预报 |
Inverse Operation of Time-Space and Real-time Flood Forecasting for Dispersive Wave |
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| Li Lan.Inverse Operation of Time-Space and Real-time Flood Forecasting for Dispersive Wave[J].Hydrology,1998(6):1-5. |
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| Authors: | Li Lan |
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| Institution: | Wuhan University of Hydraulic and Electric Engineering |
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| Abstract: | In this paper,a new dispersive wave real-time forecast method is presented,which describes law of flood wave motion in natural channel by dispersive wave equation,combines river channel flow routing with mathematics physics inverse problem theory and discrete inverse method.Its particular is that flow rate Q(x,t),dispersive wave velocity C(x,t)and diffusion coefficient D(x,t)are calculated in the same time.The real-time updating technique of parameters and forecast process is based on some new information acquired by monitoring. |
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| Keywords: | dispersive wave flow routing real-time flood forecasting inverse problem |
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