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Position: Home > Articles > Thalweg in Loess Hill Area Based on DEM Bulletin of Soil and Water Conservation 2003,23 (5) 43-45+61

基于DEM提取黄土丘陵区沟沿线

作  者:
朱红春;汤国安;张友顺;易红伟;李明
单  位:
西北大学城市与资源学系;山东科技大学地球信息科学与工程学院
关键词:
黄土丘陵区;DEM;沟沿线
摘  要:
黄土丘陵区的沟沿线,是反映该区地形地貌特征的重要的地形结构线。以陕北绥德县韭园沟流域为实验样区,探讨利用数字高程模型(DEM)实现自动提取沟沿线的原理方法,并以航片及地形图等高线为依据,对所提取沟沿线的精度进行了对比分析。实验结果证明,利用DEM自动提取沟沿线是一种快速、有效的技术方法。
译  名:
Thalweg in Loess Hill Area Based on DEM
作  者:
ZHU Hong-chun, TANG Guo-an, ZHANG You-shun , YI Hong-wei , LI Ming (Geo-infurmation Science & Engineering College, Shandong University of Science and Technology, Tai'an 271019, Shandong Province, China; Northwest University, Xi'an 710069, Shaanxi Province, China)
关键词:
: the loess hill area; DEM; thalweg
摘  要:
The thalweg in loess hill area is an important terrain structural line, reflecting topography and landform character. A case study is conducted in Jiuyuan valley of Suide county, north Shaanxi province. The principles and methods of distilling automatically thalweg are discussed in the context of a DEM, and the precision of results relative to charts and terrain maps is analyzed. The study shows that the technology and method of distilling the thalweg using DEM are practical and effective.

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