Polarimetric Radar Data from the Ross and Amundsen Sea Ice Flow Divide, West Antarctica

This dataset contains ground-based, co-polarized radar data collected using pulse-modulated 60 MHz and 179 MHz radar at 19 sites around a deep ice coring site near the Ross and Amundsen flow divide of West Antarctic Ice Sheet (WAIS Divide). At each site, the radar data were collected at 12 orientations of the radar polarization plane for three radar pulse widths: 250 nsec, 500 nsec, and 1000 nsec. Useful signals were received from depths roughly between 200 m and 2000 m. Ice flow velocities and strain configurations were measured at most of these radar survey sites, and these ice motion data are also provided at NSIDC (GPS-Measured Ice Velocities and Strain Data from the Ross and Amundsen Sea Ice Flow Divide, West Antarctica). Data are available via FTP in MATLAB (.mat) format.本数据集包含地基同极化雷达数据，采集设备为脉冲调制型60 MHz与179 MHz雷达，采集点位位于西南极冰盖（West Antarctic Ice Sheet, WAIS）罗斯-阿蒙森流界附近一处深冰芯钻探场地周边的19个测点。在每个测点，雷达数据分别在雷达极化平面的12种方位下，针对三种雷达脉冲宽度（250纳秒、500纳秒、1000纳秒）完成采集。有效信号的探测深度大致介于200米至2000米之间。多数雷达测量测点均开展了冰流速度与应变构造的实地测量，相关冰运动数据已发布于美国国家冰雪数据中心（National Snow and Ice Data Center, NSIDC），对应数据集为《西南极罗斯-阿蒙森海冰流界GPS测量冰速度及应变数据》。 本数据集可通过FTP协议以MATLAB（.mat）格式获取。