| 汉江流域数字河网的构建 |
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| 引用本文： | 林凯荣,雒征,吴建红,何新林.汉江流域数字河网的构建[J].石河子大学学报,2005,23(6):725-729. |
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| 作者姓名： | 林凯荣 雒征 吴建红 何新林 |
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| 作者单位： | [1]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 [2]江西省丰城市水利局,江西丰城331100 [3]石河子大学水利建筑工程学院,新疆石河子832003 |
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| 摘 要： | 介绍了自动提取数字河网的常用方法和不足，阐述了利用DEM和DRLN（digltal river and lake network）的改进算法的基本思路。基于全球陆地一公里基础高程GLOBE数据。利用遥感影像获得的自然流域水系矢量数据对DEM进行重新处理，自动提取了汉江流域的数字河网，能够有效避免了原始DEM可能造成的错误。最后。利用ArcHydro工具构建了具有拓扑关系的水文网络，从而为进一步开展汉江流域分布式水文模拟和计算以及水资源优化配置等分析提供了充足的空间信息。
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| 关 键 词： | 汉江流域 数字河网 水文网络 |
| 文章编号： | 1007-7383(2005)06-0725-05 |
| 收稿时间： | 2005-11-04 |
| 修稿时间： | 2005年11月4日 |
Construction of Hydro Networks in the Hanjiang Basin |
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| LIN Kai-rong, LUO Zheng, WU Jian-hong, HE Xin-lin.Construction of Hydro Networks in the Hanjiang Basin[J].Journal of Shihezi University(Natural Science),2005,23(6):725-729. |
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| Authors: | LIN Kai-rong LUO Zheng WU Jian-hong HE Xin-lin |
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| Institution: | 1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Hubei Wuhan 430072, China; 2 .Fengcheng City Water Resources Bureau, Jiangxi Province, Fengcheng, Jiangxi 331100, China; 3 .College of Water Conservancy and Architecture, Shihezi University, Shihezi, Xinjiang 832003, China |
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| Abstract: | A brief review was made on automated extraction of drainage network from grid digital elevation model and the problem of D8 approach. The approach of extraction of drainage network by using a digital elevation model and a digital river and lake network was mainly presented. This approach was improved based on some problem of it. And the improved approach was applied to Hanjiang catchment. And it can avoid the possible error of D8 approach effectively. The improved approach will be beneficial to offering ample information for distributed hydrological, models and the analysis of water resource. |
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| Keywords: | Hanjiang catchment digital drainage networks hydrology network |
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