| 变动单位线与纳西瞬时单位线在洪水预报中的应用 |
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| 引用本文： | 雷璐,宋星原,罗鹏,杨琳.变动单位线与纳西瞬时单位线在洪水预报中的应用[J].水电能源科学,2011,29(3). |
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| 作者姓名： | 雷璐 宋星原 罗鹏 杨琳 |
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| 作者单位： | 武汉大学,水资源与水电工程国家重点实验室,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对洪水预报中采用不同的地面汇流方式影响预报精度的问题,将变动单位线与纳西瞬时单位线法分别应用于湖南省嘉禾子流域的地面汇流部分,采用遗传算法优选产汇流参数,并比较了两种方法的汇流结果.结果表明,采用变动单位线法的建模结果优于纳西瞬时单位线法的建模结果.
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| 关 键 词： | 变动单位线 纳西瞬时单位线 三水源新安江模型 洪水预报 遗传算法 |
Variable Unit Hydrograph and Nash IUH in Flood Forecasting Application |
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| LEI Lu,SONG Xingyuan,LUO Peng,YANG Lin.Variable Unit Hydrograph and Nash IUH in Flood Forecasting Application[J].International Journal Hydroelectric Energy,2011,29(3). |
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| Authors: | LEI Lu SONG Xingyuan LUO Peng YANG Lin |
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| Affiliation: | LEI Lu,SONG Xingyuan,LUO Peng,YANG Lin(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | Different methods of surface routing affect the flood forecasting precision.Variable unit hydrograph and Nash instantaneous unit hydrograph are chosen to surface routing in Jiahe sub-basin of Ouyanghai reservoir in Hunan Province.Then,genetic algorithm is used to optimize the convergence model parameters.Finally,the concentration results of two methods are compared. It shows that the modeling result with variable unit hydrograph is better than that of Nash instantaneous unit hydrograph. |
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| Keywords: | variable unit hydrograph Nash instantaneous unit hydrograph three-source Xin'anjiang model flood forecasting genetic algorithm |
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