Tidal controls on the flow of ice streams

Rosier, Sebastian H.R. ORCID: https://orcid.org/0000-0003-3047-9908; Gudmundsson, G. Hilmar ORCID: https://orcid.org/0000-0003-4236-5369. 2016 Tidal controls on the flow of ice streams. Geophysical Research Letters, 43 (9). 4433-4440. 10.1002/2016GL068220

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

Abstract/Summary

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:	Publication - Article
Digital Object Identifier (DOI):	10.1002/2016GL068220
Programmes:	BAS Programmes > BAS Programmes 2015 > Ice Dynamics and Palaeoclimate
ISSN:	00948276
Additional Keywords:	ice streams, cryosphere
Date made live:	18 Jul 2016 13:06 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/513983

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1002/2016GL068220

Programmes:

BAS Programmes > BAS Programmes 2015 > Ice Dynamics and Palaeoclimate

ISSN:

00948276

Additional Keywords:

ice streams, cryosphere

Date made live:

18 Jul 2016 13:06 +0 (UTC)