基于InSAR技术的大别山DEM提取及地貌特征分析

Extraction of DEM from Dabie Mountain and Geomorphological Characteristics Analysis Based on InSAR Technology

以Envisat ASAR为数据源,运用高密度的InSAR技术反演安徽地区大别山造山带地区的高精度数字高程模型(DEM),并利用GIS的空间分析和统计分析技术,对大别山地区的构造地貌进行剖面分析,生成研究区面状地形起伏特征图,在此基础上对大别山地区的地形地貌进行定量分析,其成果可为我省地震地质研究提供大尺度的参考资料。

In this paper,taking Envisat ASAR as data source,we used high density InSAR technology to invert high precision digital elevation model(DEM) in Dabie Mountain orogenic belt of Anhui Province.Then,we used the spatial analysis and statistical analysis techniques of GIS to profile the structural geomorphology of Dabie Mountain,and generated the relief feature map of the study area.On the basis of this,we carried out a quantitative analysis of the topography and geomorphology of Dabie Mountain,which could provide largescale reference data for seismic geology research in our province.