Ill-posedness of the shallow-ice approximation when modelling thermoviscous instabilities

Hindmarsh, Richard C.A.

Hindmarsh, Richard C.A. ORCID: https://orcid.org/0000-0003-1633-2416. 2011 Ill-posedness of the shallow-ice approximation when modelling thermoviscous instabilities. Journal of Glaciology, 57 (206). 1177-1178. 10.3189/002214311798843304

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Abstract

A recent paper by Reference CalovCalov and others (2010) presents an intercomparison of several numerical ice-sheet models where the development of large-scale thermo-viscous instabilities is compared. In all but one of the models, the mechanics are approximated using the shallow-ice approximation (SIA). My purpose in writing this letter is to point out the dangers of using this approximation in this kind of analysis. [...]

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Official URL:

https://www.cambridge.org/core/journals/journal-of...

Digital Object Identifier (DOI):

10.3189/002214311798843304

Programmes (Superseded):

BAS Programmes > Polar Science for Planet Earth (2009 - ) > Ice Sheets

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