MEaSUREs InSAR-Based Ice Velocity Maps of Central Antarctica: 1997 and 2009, Version 1

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, consists of two high-resolution digital mosaics of ice motion in Central Antarctica. The mosaics were assembled from satellite interferometric synthetic-aperture radar (InSAR) data acquired by RADARSAT-1 in 1997 and by RADARSAT-2 in 2009. See Antarctic Ice Sheet Velocity and Mapping Data for related data.本数据集隶属于美国国家航空航天局（NASA）地球系统数据记录科研环境应用计划（Making Earth System Data Records for Use in Research Environments，缩写MEaSUREs），包含两套南极中部冰流运动的高分辨率数字镶嵌图。该镶嵌图由1997年RADARSAT-1与2009年RADARSAT-2获取的卫星干涉合成孔径雷达（Interferometric Synthetic-Aperture Radar，简称InSAR）数据拼接而成。相关数据可参阅《南极冰盖速度与制图数据》。