Multiangle, Frequency, and Polarization Radar Measurement of Ice Sheets

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  • 09086068

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  • Jie-Bang Yan
  • Linfeng Li
  • Joshua A. Nunn
  • Dahl-Jensen, Dorthe
  • Charles O'Neill
  • Ryan A. Taylor
  • Christopher D. Simpson
  • Shashank Wattal
  • Daniel Steinhage
  • Prasad Gogineni
  • Heinrich Miller
  • Olaf Eisen

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 polarization 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 & x2013;230, 180 & x2013;340, and 600 & x2013;900 & x00A0;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.

OriginalsprogEngelsk
TidsskriftIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Vol/bind13
Sider (fra-til)2070-2080
Antal sider11
ISSN1939-1404
DOI
StatusUdgivet - 2020

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