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| 基于SRTM DEM和ASTER GDEM的辽河流域河网提取研究 | |
| 引用本文： | 马兰艳,周春平,胡卓玮,王志恒,马国斌. 基于SRTM DEM和ASTER GDEM的辽河流域河网提取研究[J]. 安徽农业科学, 2011, 39(5): 2692-2695 |
| 作者姓名： | 马兰艳 周春平 胡卓玮 王志恒 马国斌 |
| 作者单位： | 1. 首都师范大学资源环境与旅游学院,北京,100048;三维信息获取与应用教育部重点实验室,北京,100048;资源环境与地理信息系统北京市重点实验室,北京,100048;灾害评估与风险防范民政部重点实验室,北京,100048 2. 首都师范大学资源环境与旅游学院,北京,100048 3. 北京师范大学资源学院,北京,100875 |
| 基金项目： | 国家科技支撑项目(2008BAK49B07) |
| 摘 要： | 以SRTM DEM数据和ASTER GDEM作为基本的地形数据,借助Arc Hydro Tools扩展模块,研究基于地表径流漫流模型的数字河网水系提取方法,并对提取结果对比分析。研究显示,通过引入河网密度参数来确定集水面积阈值,提取结果与1∶25万地形图各级河网拟合程度较好,可运用于辽河流域山洪灾害风险评估模型的实际运行中。 |
| 关 键 词： | 河网密度 集水面积阈值 辽河流域 |
Research on Drainage Network Extraction in Liaohe Basin Based on SRTM DEM and ASTER GDEM |
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| MA Lan-yan et al. Research on Drainage Network Extraction in Liaohe Basin Based on SRTM DEM and ASTER GDEM[J]. Journal of Anhui Agricultural Sciences, 2011, 39(5): 2692-2695 | |
| Authors: | MA Lan-yan et al |
| Affiliation: | MA Lan-yan et al (College of Resource Environment and Tourism,Capital Normal University,Beijing 100048) |
| Abstract: | In this study,SRTM DEM data and ASTER GDEM data were used as the basic topographic data,and Arc Hydro Tools was utilized for extension module so as to study on extracting digital drainage network of watershed based on surface runoff model,as well as to compare the two extraction results.The result showed that through the introduction of drainage density parameter to determine the river drainage area threshold,the both extracting drainages showed the goodness-of-fit with the factual drainage network on 1:250... |
| Keywords: | Drainage density River drainage area threshold Liaohe basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |