Nicholls, Keith W. and Corr, Hugh F.J. and Stewart, Craig L. and Lok, Lai Bun and Brennan, Paul V. and Vaughan, David G. (2015) Instruments and methods:A ground-based radar for measuring vertical strain rates and time-varying basal melt rates in ice sheets and shelves. Journal of Glaciology, 61 (230). pp. 1079-1087. ISSN 0022-1430
Full text not available from this repository.Abstract
The ApRES (autonomous phase-sensitive radio-echo sounder) instrument is a robust, lightweight and relatively inexpensive radar that has been designed to allow long-term, unattended monitoring of ice-shelf and ice-sheet thinning. We describe the instrument and demonstrate its capabilities and limitations by presenting results from three trial campaigns conducted in different Antarctic settings. Two campaigns were ice sheet-based - Pine Island Glacier and Dome C - and one was conducted on the Ross Ice Shelf. The ice-shelf site demonstrates the ability of the instrument to collect a time series of basal melt rates; the two grounded ice applications show the potential to recover profiles of vertical strain rate and also demonstrate some of the limitations of the present system.