| 基于高分辨率DEM的地形特征提取与分析 |
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| 引用本文： | 韦金丽,王国波,凌子燕.基于高分辨率DEM的地形特征提取与分析[J].东北测绘,2012(1):33-36. |
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| 作者姓名： | 韦金丽 王国波 凌子燕 |
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| 作者单位： | [1]广西基础地理信息中心,广西南宁530023 [2]北部湾（广西）高分辨率卫星遥感试验基地,广西南宁530023 |
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| 基金项目： | 广西自然科学基金项目（0832073）资助 |
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| 摘 要： | 地形特征是人们用于描述空间过程变化的重要指标,地形特征的提取是进行测绘、资源调查、环境保护、农林种植、城市规划、灾害防治及地学调查等地理空间相关研究的基础。本研究以宁明县为例,利用高精度DEM进行数字地形分析,实现了高效快速、客观准确地提取地形特征参数,为后续涉及空间信息的研究奠定了基础。
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| 关 键 词： | DEM 坡度 坡向 坡位 地貌类型 |
The Extraction and Analysis of Landform Characters Based on High-resolution DEM |
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| WEI Jin-li,WANG Guo-bo,LING Zi-yan.The Extraction and Analysis of Landform Characters Based on High-resolution DEM[J].Northeast Surveying and Mapping,2012(1):33-36. |
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| Authors: | WEI Jin-li WANG Guo-bo LING Zi-yan |
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| Institution: | 1.Guangxi Geomatics Center,Nanning 530023,China;2.North Bay(Guangxi)High-resolution Satellite Remote Sensing Test Base,Nanning 530023,China) |
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| Abstract: | The landform character is an important index to describe space transforming process,and the extraction of the landform character is the base for geographical researches,such as mapping,resource survey,environment protection,farming and forestry planting,city planning,disaster prevention and geosciences.High-resolution DEM is applied to the digital analysis of the terrain in Ningming county and parameters of the landform character are obtained efficiently and objectively,which establishes the base for further researches involved with geo-information. |
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| Keywords: | DEM slope slope aspect slope position physiognomy |
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