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中文摘要：
介绍了自主开发的分布式水文模型EasyDHM的空间单元离散方式、主要理论模块及相应的模型软件系统MWEasyDHM。EasyDHM模型的空间离散采用自主开发的通用子流域划分算法，很大程度上扩展了分布式水文模型的通用性，支持多种产汇流算法，支持用户对主要产汇流参数的敏感性分析和参数优化，以优化模型模拟效果，开发了专门的洪水预报模块，支持洪水实时校正及多模型组合预报技术并在嫩江流域使用EasyDHM模型进行了应用验证。
英文摘要：
The paper deals with spatial discretization methods, major theoretical modules and MWEasyDHM, the corresponding model software system of the self-developed distributed hydrological model--EasyDHM. A self- developed common sub-basin partition algorithm is applied for spatial discretization, which extends generality of the distributed hydrological model to a great extent. The model can offer multiple runoff generation and confluence algorithms, methods of parameter sensitivity analysis and parameter optimization for major runoff generation and confluence parameters to optimize simulation effect. A separate flood forecasting module is developed for flood real-time correction and multi-model combination forecasting technique. The EasyDHM model has been already successfully applied to Nen river basin.
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