| 数字化流域及流域信息提取方法研究 |
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| 引用本文： | 翁明华,姚成,李致家.数字化流域及流域信息提取方法研究[J].水文,2009,29(5). |
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| 作者姓名： | 翁明华 姚成 李致家 |
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| 作者单位： | 1. 上海市南汇区水务局,上海,201300
2. 河海大学水文水资源学院,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金，淮河流域气象开放研究基金 |
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| 摘 要： | 介绍了基于数字高程模型(DEM)的流域信息提取方法,包括:DEM预处理,流向及集水面积的确定,水系的生成及子流域的划分方法以及流域面积、长度、坡度、坡向等信息的提取.并将这些方法应用于安徽境内的呈村流域,进行了实例验证,构建了数字化流域.
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| 关 键 词： | 信息提取 流域划分 数字流域 |
Research on Information Extracting Method for Digital Watershed |
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| WENG Ming-hua,YAO Cheng,LI Zhi-jia.Research on Information Extracting Method for Digital Watershed[J].Hydrology,2009,29(5). |
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| Authors: | WENG Ming-hua YAO Cheng LI Zhi-jia |
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| Abstract: | The methods and procedures based on the digital elevation model (DEM)to extract watershed information were introduced,including pre-processing of DEM,flow-direction computation and determination of catchment area,and extraction of drainage networks,sub-basins,lengths,slopes and aspects.Simultaneously,the Chengcun watershed in Anhui Province was digitized as a cage in terms of these extraction methods and procedures. |
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| Keywords: | DEM DEM information extraction watershed division digital watershed |
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