地理研究 ›› 1999, Vol. 18 ›› Issue (4): 391-399.doi: 10.11821/yj1999040009

• 论文 • 上一篇    下一篇

夷平面的三维显示与定量分析方法初探

刘勇, 王义祥, 潘保田   

  1. 兰州大学地理科学系, 甘肃兰州 730000
  • 收稿日期:1998-11-07 修回日期:1999-04-12 发布日期:2013-01-18
  • 通讯作者: 刘勇(1964- ),男,甘肃清水县人,副教授。1989年于兰州大学地理系获学士学位,现在中国科学院地理研究所资源与环境信息系统国家重点实验室在职攻读博士学位,主要从事资源与环境信息系统、寒区地貌研究。
  • 基金资助:

    国家自然科学基金(49771015和49301004)

A preliminary approach on the 3D presentation and quantitative analysis of planation surface

LIU Yong, WANG Yi-xiang, PAN Bao-tain   

  1. Department of Geography, Lanzhou University, Lanzhou 730000, China
  • Received:1998-11-07 Revised:1999-04-12 Published:2013-01-18

摘要: 夷平面是当代地貌学研究的一个重要课题之一,对于重建一个地区的地貌演化的历史具有重要的意义。文中利用遥感与地理信息系统技术,建立了位于兰州以南、青藏高原东北部边缘的美武高原数字高程模型,并与陆地卫星影像结合起来进行集成分析,论述了美武高原三维地貌影像图的信息特点,提取了若干区段的地形剖面,进而在分析了高原夷平面地貌参数体系的基础上运用遥感图像监督分类技术自动提取出高原夷平面的具体分布区域,揭示了此项技术对于夷平面分析的巨大潜力。

关键词: 夷平面, 数字高程模型, 青藏高原, 三维地貌影像图, 监督分类

Abstract: Planation Surface is one of the very important issues in the field of current geomorphology, and plays a major role for reconstructing the evolutional history of land from in a region. By using remote sensing and geographical information systems, this article discussed the creation of the Digital Elevation Model(DEM) of the Meiwu Plateau, at the south of Lanzhou and the northeastern margin of the Qinghai-Xizang Plateau, and the integration of both DEM and Landsat TM images. Then the characteristics of 3D Geomorphological Imagery of the Meiwu Plateau were discussed, and the topographic profiles at several parts of the DEM were got. On the basis of analyzing the system of geomorphological parameters on the planation surface, the exact extent of the planation surface on the Meiwu Plateau was got by using the supervised classification technique in the field of image processing. The great potential of this technique was discovered on the analysis of planation.

Key words: planation surface, Digital Elevation Model(DEM), The Qinghai-Xizang Plateau, 3D Geomorphological Imagery, supervised classification

PACS: 

  • P931.2