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Flood forecast by the distributed hydrological model EasyDHM coupled with the WRF model

机译：分布式水文模型EasyDHM与WRF模型结合进行洪水预报

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摘要

Appropriate modeling tools should be available to realistically describe reactions of watersheds to climate change like large rains and to identify efficient and effective adaptation strategies on the regional scale. In this paper, the distributed hydrologic model EasyDHM, which was developed independently by our research group and its flood module are presented for hydrological simulation and flood forecast. The Weather Research and Forecasting model WRF is used for the regional precipitation forecasting, which can reduce the damages of flood events. An application case of the coupling forecasting system is given for the catchment of the Three Gauges Dam in this paper, where the water flows are significantly influenced by rains within this area. The forecasted flood events at three different hydrological stations are set as examples, presented and analyzed in this application. The results show that the coupling of WRF model to the flood forecasting module in the distributed hydrological model EasyDHM is necessary and of great significance.
机译：应该使用适当的建模工具来现实地描述流域对大雨等气候变化的反应，并确定区域范围内有效的适应策略。本文介绍了由我们的研究小组独立开发的分布式水文模型EasyDHM及其洪水模块，用于水文模拟和洪水预报。天气研究和预报模型WRF用于区域降水预报，可以减少洪水灾害的危害。给出了三表大坝汇水量耦合预报系统的应用案例，该水流受该地区降雨的影响很大。以三个不同水文站的预报洪水事件为例，在此应用程序中进行了介绍和分析。结果表明，在分布式水文模型EasyDHM中，将WRF模型与洪水预报模块耦合是必要的，具有重要意义。

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