Instruments and methods:A ground-based radar for measuring vertical strain rates and time-varying basal melt rates in ice sheets and shelves

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

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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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Glaciology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1904
Subjects:
ID Code:
127737
Deposited By:
Deposited On:
01 Oct 2018 08:16
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Oct 2020 08:24