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Lookup NU author(s): Dr Sophie Bassett
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number of recent studies. We have revisited this problem in order to: (i) highlight some key issues with regard to limitations in the ice modelling approach adopted in these studies and (ii) consider the constraints provided from observations of crustal motion available via continuous global positioning system monitoring. With regard to the first aim, we have found that: (i) previous studies have significantly overestimated ice thicknesses in regions where trim line field constraints were adopted and (ii) the duration of the glaciation phase of the UK ice sheet is a critical aspect of the model and that discrepancies in this model component have led to inconsistent inferences of Earth model parameters. With regard to the second aim, we have found that predictions of horizontal velocities (relative to a chosen site) based on a UK ice model calibrated to fit the regional sea-level database capture the geometry of the signal well but only account for 10% of the magnitude (for a range of Earth models).
Author(s): Milne GA, Shennan I, Youngs BAR, Waugh AI, Teferle FN, Bingley RM, Bassett SE, Cuthbert-Brown C, Bradley SL
Publication type: Article
Publication status: Published
Journal: Philosophical Transactions of the Royal Society A-Mathematical, Physical and Engineering Sciences
Year: 2006
Volume: 364
Issue: 1841
Pages: 931-948
ISSN (print): 1364-5021
ISSN (electronic): 1471-2946
Publisher: The Royal Society Publishing
URL: http://dx.doi.org/10.1098/rsta.2006.1747
DOI: 10.1098/rsta.2006.1747
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