| 基于DEM地表水文特征和汇水子流域的提取研究 |
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| 引用本文： | 胡婕,李崇巍,崔铁军.基于DEM地表水文特征和汇水子流域的提取研究[J].环境科学与管理,2011,36(9):131-135,163. |
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| 作者姓名： | 胡婕 李崇巍 崔铁军 |
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| 作者单位： | 天津师范大学城市与环境科学学院,天津,300387 |
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| 基金项目： | 国家自然科学基金项目(No.30970505); 天津师范大学人才引进项目(No.5RL084) |
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| 摘 要： | 文章以天津于桥水库上游流域为研究对象,以DEM(数字高程模型)为基础数据,对DEM生成方法、DEM精度、流域地形地貌特征及阈值的选取三个方面分别作了详细研究。试验结果表明,从于桥水库上游流域的水文特征所提取的河网分布与河流与实际分布情况基本吻合,淋河、沙河、黎河三大流域的面积误差范围分别为-3.44%、2.28%和7.63%。
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| 关 键 词： | DEM 河网提取 流域模拟 水文分析 |
Analysis on Extraction of Land Surface Hydrological Characteristics and Sub Drainage Area Base on DEM |
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| Hu Jie,Li Chongwei,Cui Tiejun.Analysis on Extraction of Land Surface Hydrological Characteristics and Sub Drainage Area Base on DEM[J].Environmental Science and Management,2011,36(9):131-135,163. |
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| Authors: | Hu Jie Li Chongwei Cui Tiejun |
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| Institution: | Hu Jie,Li Chongwei,Cui Tiejun (College of Urban and Environmental Science,Tianjin Normal University,Tianjin 300387,China) |
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| Abstract: | Taking the upper stream of Tianjin Yuqiao reservoir as the research object,this paper makes a detailed research on the three aspects of digital elevation model(DEM) generation method,DEM accuracy and topography features of the watershed and threshold selection by taking DEM as the basic data resources.The results show that the river network distribution which is extracted from the watershed hydrological characteristics of the upper stream of Yuqiao reservoir is basically consistent with the actual distribut... |
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| Keywords: | DEM river network extraction watershed simulation hydrological analysis |
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