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Ocean tides under the Filchner-Ronne Ice Shelf, Antarctica

Smithson, M.J.; Robinson, A.V.; Flather , R.A.. 1996 Ocean tides under the Filchner-Ronne Ice Shelf, Antarctica. Annals of Glaciology, 23 (1). 217-225. 10.3198/1996AoG23-217-224

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Abstract/Summary

A depth-averaged finite-difference numerical model has been used to make a preliminary study of the tides under the Filchner‐Ronne Ice Shelf. Open boundary conditions were specified using the global ocean model of Schwiderski. Tidal constituents for the two principal semi-diurnal constituents M2 and S2, and the two principal diurnal constituents Ο1 and K1 were extracted from computed sea-surface elevations by harmonic analysis. Measured values near to the grounding line could only be reproduced satisfactorily by increasing the bottom friction coefficient under the ice to 50 times the open-ocean value. This destroys any agreement near the ice front or at pelagic sites. It is thought that a friction coefficient which varies with distance under the ice would be able to reproduce better all the available measurements. More tidal measurements are required to validate any model of the region with model experiments being used to help pinpoint possible sites for instrument deployment.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.3198/1996AoG23-217-224
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 0260-3055
Date made live: 05 Dec 2016 09:31 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/515319

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