Where might we find evidence of a Last Interglacial West Antarctic ice sheet collapse in Antarctic ice core records?

Bradley, S. L. and Siddall, M. and Milne, G. A. and Masson-Delmotte, V. and Wolff, E. W. (2012) Where might we find evidence of a Last Interglacial West Antarctic ice sheet collapse in Antarctic ice core records? Global and Planetary Change, 88-89. pp. 64-75. ISSN 0921-8181 DOI 10.1016/j.gloplacha.2012.03.004

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Abundant indirect evidence suggests that the West Antarctic Ice Sheet (WAIS) reduced in size during the Last Interglacial (LIG) compared to the Holocene. This study explores this possibility by comparing, for the first time, ice core stable isotope records for the LIG with output from a glacio-isostatic adjustment (GIA) model. The results show that ice core records from East Antarctica are remarkably insensitive to vertical movement of the solid land motion driven by a simulated hypothetical collapse of the WAIS. However, new and so far unexplored sites are identified which are sensitive to the isostatic signal associated with WAIS collapse and so ice core proxy data from these sites would be effective in testing this hypothesis further.

Item Type: Article
Uncontrolled Keywords: NIL AREP
Subjects: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Journal or Publication Title: Global and Planetary Change
Volume: 88-89
Page Range: pp. 64-75
Identification Number: 10.1016/j.gloplacha.2012.03.004
Depositing User: Sarah Humbert
Date Deposited: 31 Aug 2013 14:12
Last Modified: 31 Aug 2013 14:12
URI: http://eprints.esc.cam.ac.uk/id/eprint/2843

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