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Parallel numerical modelling of ice flow in Antarctica

Takeda, A.L., Cox, S.J. and Payne, A.J., (2000) Parallel numerical modelling of ice flow in Antarctica Arabnia, Hamid R. (ed.) In Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2000). CSREA Press., pp. 335-341.

Record type: Conference or Workshop Item (Paper)

Abstract

The Antarctic Ice Sheet is made up of the West Antarctic Ice Sheet (WAIS) and the much larger East Antarctic Ice Sheet (EAIS). Previous numerical models have focussed on ice flow in WAIS, since the size of the EAIS has precluded studies at a resolution adequate to identify complex flow features. The equations describing ice flow are highly non-linear, making this a computationally intensive problem. We use a staggered grid to overcome numerical instability and a sparse packing scheme to take account of the irregular boundary of Antarctica. We have developed a highly efficient parallel thermally-coupled ice flow model of the entire Antarctic Ice Sheet at a resolution of 20km and present performance results obtained on a commodity cluster of workstations. Our initial results show areas of East Antarctica at pressure melting point that may be characterised by fast ice flow.

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More information

Published date: 2000
Venue - Dates: International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2000), 2000-06-24 - 2000-06-26
Keywords: Antarctica, parallel computing, non-linear partial differential equations, commodity supercomputing

Identifiers

Local EPrints ID: 21956
URI: http://eprints.soton.ac.uk/id/eprint/21956
ISBN: 1892512521
PURE UUID: d81885d7-38d5-4c86-9d5d-e5a68fe88196

Catalogue record

Date deposited: 27 Feb 2007
Last modified: 17 Jul 2017 16:24

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Contributors

Author: A.L. Takeda
Author: S.J. Cox
Author: A.J. Payne
Editor: Hamid R. Arabnia

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