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).

本数据集包含基于地面的同极化雷达数据，这些数据通过脉冲调制的60 MHz和179 MHz雷达在西南极冰盖（West Antarctic Ice Sheet, WAIS）罗斯与阿蒙森流分界附近的深冰芯钻探点周边19个站点采集。在每个站点，雷达数据在雷达极化平面的12个方向上采集，涵盖三种雷达脉冲宽度：250纳秒（nsec）、500纳秒（nsec）和1000纳秒（nsec）。有效信号的接收深度大致在200米至2000米之间。在大多数雷达测量站点，均对冰流速度和应变构型进行了测量；这些冰运动数据也可在NSIDC获取，对应数据集为《西南极罗斯与阿蒙森海冰流分界的GPS测量冰流速度与应变数据》（GPS-Measured Ice Velocities and Strain Data from the Ross and Amundsen Sea Ice Flow Divide, West Antarctica）。