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	大尺度流域河网二叉树编码方法
	王皓 ; 李铁键 ; 高洁 ; 傅旭东 ; 王光谦 ; WANG Hao ; LI Tie-jian ; GAO Jie ; FU Xu-dong ; WANG Guang-qian
	2010-06-10 ; 2010-06-10
关键词	大尺度流域 分布式水文模型 河网编码 拉萨河 large-scale basin distributed hydrological model drainage network coding Lhasa River TV221.1
其他题名	Binary-tree coding for drainage network of large-scale basins
中文摘要	数字流域模型(DWM)中基于二叉树理论的河网编码方法能够实现任意河段的直接定位和高效的拓扑运算,然而由于该模型针对大尺度流域河网存在编码能力不足的隐患,降低了该模型的通用性和有效性.为此,研究了河网二叉树编码的通用方法,并开发了全自动可视化平台,可以实现任意尺度流域河网的二叉树编码,为进行后续流域水沙运动模拟奠定了基础.将该方法应用于中国西藏境内约3.2万km2的拉萨河流域,实现了59 197条河段的快速编码,并按河网自然拓扑形态和流域天然分界将全流域划分为3级14区,验证了该方法改进后的有效性.; The binary-tree coding method for the drainage network based on the binary tree theory in the digital watershed model is able to realize topological operation and direct location for arbitrary river segment.However,the method is probably of coding overflow defect for the drainage network of large-scale basins,greatly reducing its applicability and validity.The general method of the binary-tree coding was studied,and an automatic visualization platform was developed,which could realize the binary-tree coding for arbitrary scale basin.A solid basis was made for the subsequent modeling of water and sediment motion in basins.The present method was used in the Lhasa River basin with an area of 32 000 km2 in Tibet,China.It realized the drainage network coding of 59 197 river segments in only one minute and the basin was divided into 3 grades and 14 regions according to the natural topological configuration of the drainage network and the natural dividing line of the basin.The feasibility and effectiveness of the improved method were thus verified by the results.; “十一五”国家科技支撑计划(2007BAC06B06)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/59703]
专题	清华大学
推荐引用方式 GB/T 7714	王皓,李铁键,高洁,等. 大尺度流域河网二叉树编码方法[J],2010, 2010.
APA	王皓.,李铁键.,高洁.,傅旭东.,王光谦.,...&WANG Guang-qian.(2010).大尺度流域河网二叉树编码方法..
MLA	王皓,et al."大尺度流域河网二叉树编码方法".(2010).

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