Multi-angle, Frequency and Polarization Radar Measurement of Ice Sheets

Jie-Bang Yan, Linfeng Li, Joshua Nunn, Dorthe Dahl-Jensen, Charles O'Neill, Ryan Taylor, Christopher Simpson, Shashank Wattal, Daniel Steinhage, Prasad Gogineni, Heinrich Miller, Olaf Eisen
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
Radio echo sounding of polar ice sheets provides important information on the ice bed topography and internal layers. These data have been used by scientists to create 3-D maps of polar ice sheets for climate modeling as well as to reconstruct the climate history that dates back to hundreds of thousands of years. In this article, we present the design and development of three surface-based multichannel radars in the VHF and UHF bands. We provide results from radar data multifrequency and
more » ... ation radar data collected over the Greenland ice sheet. All the three radars shared the same digital waveform generator and digitizer, and were installed in and operated on a tracked vehicle. The radars are operated with three different antenna arrays designed for operation over 170-230, 180-340, and 600-900 MHz. The results we obtained sounded more than 2.7 km thick ice with radars operating at frequencies as high as 850 MHz with more than 40 dB signal-to-noise ratio.
doi:10.1109/jstars.2020.2991682 fatcat:vlda6oobefbudbwdhbgdotnxku