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

Nicholls, Keith W. ORCID: https://orcid.org/0000-0002-2188-4509; Corr, Hugh F.J.; Stewart, Craig L.; Lok, Lai Bun; Brennan, Paul V.; Vaughan, David G. ORCID: https://orcid.org/0000-0002-9065-0570. 2015 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). 1079-1087. 10.3189/2015JoG15J073

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Abstract/Summary

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:	Publication - Article
Digital Object Identifier (DOI):	10.3189/2015JoG15J073
Programmes:	BAS Programmes > BAS Programmes 2015 > Polar Oceans
ISSN:	0022-1430
Additional Keywords:	Antarctic glaciology, glaciological instruments and methods, ice shelves, ice/ocean interactions, radio-echo sounding
Date made live:	14 Dec 2015 11:14 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/512423

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