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An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAPv1)

Le Brocq, A.; Payne, A.J.; Vieli, A.. 2010 An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAPv1). Earth System Science Data, 2. 247-260. 10.5194/essdd-3-195-2010

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Abstract/Summary

The dataset described in this paper (ALBMAP) has been created for the purposes of high-resolution numerical ice sheet modelling of the Antarctic Ice Sheet. It brings together data on the ice sheet configuration (e.g. ice surface and ice thickness) and boundary conditions, such as the surface air temperature, accumulation and geothermal heat flux. The ice thickness and basal topography is based on the BEDMAP dataset (Lythe et al., 2001), however, there are a number of inconsistencies within BEDMAP and, since its release, more data has become available. The dataset described here addresses these inconsistencies, including some novel interpolation schemes for sub ice-shelf cavities, and incorporates some major new datasets. The inclusion of new datasets is not exhaustive, this considerable task is left for the next release of BEDMAP, however, the data and procedure documented here provides another step forward and demonstrates the issues that need addressing in a continental scale dataset useful for high resolution ice sheet modelling. The dataset provides an initial condition that is as close as possible to present-day ice sheet configuration, aiding modelling of the response of the Antarctic Ice Sheet to various forcings, which are, at present, not fully understood.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.5194/essdd-3-195-2010
Programmes: BAS Programmes > EU:Ice2Sea
ISSN: 1866-3508
Additional Information. Not used in RCUK Gateway to Research.: Ice2Sea
Date made live: 21 Mar 2012 12:22
URI: http://nora.nerc.ac.uk/id/eprint/17241

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