| 大尺度流域高分辨率河网提取的多叉树耦合方法 | |
| 王皓 ; 王光谦 ; 孙其诚 ; 傅旭东 ; 巩同梁 ; 高洁 ; WANG Hao ; WANG Guangqian ; SUN Qicheng ; FU Xudong ; GONG Tongliang ; GAO Jie | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 大尺度流域 分布式水文模型 多叉树耦合 河网提取 拉萨河 large-scale basin distributed hydrological model multi-tree coupling drainage network extraction Lhasa River P334.92 |
| 其他题名 | Multi-tree Coupling Method of High Resolution Drainage Network Extraction on Large-scale Basin |
| 中文摘要 | 大尺度流域分布式水文模型的构建是揭示全球水循环运动机理的重要工具,而流域河网拓扑信息则是分布式水文模型最重要的基础输入之一.针对现有国内外各种软件平台对大尺度流域高分辨率河网提取能力不足的现状,提出了多叉树耦合方法,通过先分块提取、后重新耦合的方式,可以获取全流域一体化的高分辨率河网拓扑信息.该方法不受流域尺度和数据精度的限制,其河网提取过程可充分结合使用现有各种软件平台,适用性很强.将该方法应用到中国西藏境内3.2×104km2的拉萨河流域,实现了9子块河网的一次性集成,共获取147994个坡面单元,平均坡面面积0.22km2,表明了多叉树耦合方法技术可行,并为后续大尺度水文模拟提供了重要的技术支撑.; The construction of large-scale distributed hydrological model is an important tool to reveal the global water cycle movement mechanism and the drainage network topological information is one of the most important basic inputs for it.However,it is hard to extract high resolution drainage network for the large-scale basin by each kind of software nowadays.A multi-tree coupling approach was put forward to solve the problem through the way of decomposition first and latter integration,which can acquire high resolution drainage network of the large-scale basin very effectively.The approach has high applicability and is not restricted by the basin scale and original data precision,and also,the corresponding drainage network extraction process could take full advantage of current various software platforms without any change.The multi-tree coupling approach was applied in the Lhasa River basin with area of 32000km2 in Tibet,and realized a disposable integration of 9 sub-block drainage networks and achieved 147994 hill slope units with the average area of 0.22km2.It demonstrated the technical feasibility of the multi-tree coupling approach and provided an important technical support for the continuous large-scale hydrological simulation.; 科技部水利部公益性行业科研专项(200701008) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/59621]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 王皓,王光谦,孙其诚,等. 大尺度流域高分辨率河网提取的多叉树耦合方法[J],2010, 2010. |
| APA | 王皓.,王光谦.,孙其诚.,傅旭东.,巩同梁.,...&GAO Jie.(2010).大尺度流域高分辨率河网提取的多叉树耦合方法.. |
| MLA | 王皓,et al."大尺度流域高分辨率河网提取的多叉树耦合方法".(2010). |
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