| 飞来峡流域基于栅格DEM的分布式水文模拟 |
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| 引用本文： | 万民,熊立华,董磊华.飞来峡流域基于栅格DEM的分布式水文模拟[J].武汉大学学报(工学版),2010,43(5). |
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| 作者姓名： | 万民 熊立华 董磊华 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金重点项目，教育部新世纪优秀人才支持计划项目，霍英东青年教师基金 |
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| 摘 要： | 基于栅格DEM的分布式水文模型能利用DEM提供的流域地形,包括流域边界、坡度、坡向、河网等特征信息,充分考虑下垫面条件的不均匀性及空间尺度相耦合性.以集水面积34097km2的飞来峡水库流域为例,利用SRTM90m精度的DEM资料提取流域特征信息和划分水系和子流域,采用基于栅格DEM的分布式水文模型来计算每个栅格的产汇流,河道汇流采用马斯京根法,参数率定采用SCE-UA优化算法.结果表明:一个结构简单、物理过程明确、参数较少的栅格DEM分布式模型可以被用于大中型流域的水文模拟,以更好地利用流域地形特征信息和描述流域水文过程.
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| 关 键 词： | 栅格水文模型 分布式水文模拟 数字高程模型(DEM) |
Grid DEM-based distributed hydrological modeling for Feilaixia watershed |
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| WAN Min,XIONG Lihua,DONG Leihua.Grid DEM-based distributed hydrological modeling for Feilaixia watershed[J].Engineering Journal of Wuhan University,2010,43(5). |
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| Authors: | WAN Min XIONG Lihua DONG Leihua |
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| Affiliation: | WAN Min,XIONG Lihua,DONG Leihua (State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | A grid digital elevation model(DEM)-based distributed watershed hydrological model which can utilize the watershed terrain characteristics represented by DEM,and take into account the asymmetry and the spatial scale coupling of the underlying surface,has become a hotspot in current hydrological model research.Taking Feilaixia reservoir basin with a catchment area of 34 097km2 for example,the SRTM 90m DEM data are used for extracting terrain characteristics information and delineating drainage networks and s... |
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| Keywords: | grid hydrological model distributed hydrological modeling digital elevation model(DEM) |
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