Tidal controls on the flow of ice streams

Rosier, Sebastian and Gudmundsson, Hilmar (2016) Tidal controls on the flow of ice streams. Geophysical Research Letters, 43 (9). pp. 4433-4440. ISSN 0094-8276

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Official URL: http://dx.doi.org/10.1002/2016GL068220

Abstract

The flow of many Antarctic ice streams is known to be significantly influenced by tides. In the past, modeling studies have implemented the tidal forces acting on a coupled ice stream/ice shelf system in a number of different ways, but the consequences that this has on the modeled response of ice streams to tides have, until now, not been considered. Here we investigate for the first time differences in model response that are only due to differences in the way tidal forcings are implemented. We find that attempts to simplify the problem by neglecting flexural stresses are generally not valid and forcing models with only changes in ocean back pressure will not capture either the correct amplitudes or length scale.

Item Type: Article
Subjects: F800 Physical and Terrestrial Geographical and Environmental Sciences
Department: Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User: Paul Burns
Date Deposited: 15 Jun 2018 14:48
Last Modified: 11 Oct 2019 18:02
URI: http://nrl.northumbria.ac.uk/id/eprint/34578

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