Antarctic 1 km Digital Elevation Model (DEM) from Combined ERS-1 Radar and ICESat Laser Satellite Altimetry, Version 1

This data set provides a 1 km resolution Digital Elevation Model (DEM) of Antarctica. The DEM combines measurements from the European Remote Sensing Satellite-1 (ERS-1) Satellite Radar Altimeter (SRA) and the Ice, Cloud, and land Elevation Satellite (ICESat) Geosciences Laser Altimeter System (GLAS). The ERS-1 data are from two long repeat cycles of 168 days initiated in March 1994, and the GLAS data are from 20 February 2003 through 21 March 2008. The data set is approximately 240 MB comprised of two gridded binary files and two Environment for Visualizing Images (ENVI) header files viewable using ENVI or other similar software packages. The data are available via FTP.

本数据集提供了分辨率为1千米的南极洲数字高程模型（Digital Elevation Model，DEM）。该DEM融合了欧洲遥感卫星1号（European Remote Sensing Satellite-1，ERS-1）搭载的卫星雷达高度计（Satellite Radar Altimeter，SRA）与冰、云与陆地高程卫星（Ice, Cloud, and land Elevation Satellite，ICESat）的地球科学激光测高系统（Geosciences Laser Altimeter System，GLAS）的测量数据。ERS-1的数据取自1994年3月启动的两个周期为168天的长重复观测周期，GLAS的数据则采集自2003年2月20日至2008年3月21日期间。本数据集大小约为240兆字节，包含两个网格化二进制文件与两个可通过ENVI（Environment for Visualizing Images）或其他同类软件查看的ENVI头文件。该数据集可通过文件传输协议（File Transfer Protocol，FTP）获取。