| 基于SRTM-DEM区域地形起伏的获取及应用 |
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| 引用本文： | 张会平,刘少峰,孙亚平,陈永生. 基于SRTM-DEM区域地形起伏的获取及应用[J].国土资源遥感,2006,17(1):31-35. |
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| 作者姓名： | 张会平 刘少峰 孙亚平 陈永生 |
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| 作者单位： | 1. 中国地质大学地质过程与矿产资源国家重点实验室,北京,100083;中国地质大学地球科学与资源学院,北京,100083
2. 中国地质大学地球科学与资源学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(40234041,40272055)，中国地质大学(北京)第四届“创新杯”重点科研项目(D04002) |
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| 摘 要： | 基于数字高程模型（DEM）空间分析方法，利用SRTM采集的DEM数据，提出两种获取区域地形起伏的关键技术，即高程条带法（Swath Profile）和高程阈值法（Threshold Value），并通过扩展区域地形起伏获取的技术方法，初步实现了黄土高原典型地区侵蚀量的定量化分析。
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| 关 键 词： | 地貌 区域地形起伏 DEM |
| 文章编号： | 1001-070X(2006)01-0031-05 |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005-09-19 |
THE ACQUISITION OF LOCAL TOPOGRAPHIC RELIEF
AND ITS APPLICATION: AN SRTM-DEM ANALYSIS |
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| ZHANG Hui-ping,LIU Shao-feng,SUN Ya-ping,CHEN Yong-sheng.THE ACQUISITION OF LOCAL TOPOGRAPHIC RELIEF
AND ITS APPLICATION: AN SRTM-DEM ANALYSIS[J].Remote Sensing for Land & Resources,2006,17(1):31-35. |
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| Authors: | ZHANG Hui-ping LIU Shao-feng SUN Ya-ping CHEN Yong-sheng |
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| Institution: | 1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China; 2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083 ,China |
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| Abstract: | Topographic analysis has been widely used in the study of landscape evolution and surface process,and the researches in this field have become more and more quantitative.Local topographic relief,which is defined as the difference between local maximum elevation and local base level,is one of the key methods in topographic analysis.Based on a spatial analysis of the SRTM-DEM,this paper puts forward two methods for the acquisition of local topographic relief,i.e.,Swath Profile and Threshold Value.The quantitative analysis of the erosion within a typical area of the Loess Plateau has been preliminarily realized by extending the Threshold Value method. |
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| Keywords: | Geomorphology Local topographic relief DEM |
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