湖南地区SRTM高程数据初步探讨

Preliminary Discussion on Hunan SRTM Elevation Data

在简述SRTM生产的DEM数据基础上对湖南地区3弧秒的SRTM数据空值区域进行提取和分析,确定在原始SRTM数据上利用相关软件对其空值区域进行填补的方法,并在此基础上对湖南地区DEM数据的完整性进行分析。

This paper briefly introduces SRTM DEM,and carried out extraction and analysis of Hunan area 3 Arc sec SRTM no-data region.Then,this paper determines how to fill its no-data region on the basis of original SRTM by using correlation software,and further analyzes DEM data integrity in Hunan area.