Earth System Science Data Discussions www.earth-syst-sci-data-discuss.net 1866-3591 3 1 2010 10.5194/essdd-3-195-2010 http://www.earth-syst-sci-data-discuss.net/3/195/2010/ http://www.earth-syst-sci-data-discuss.net/3/195/2010/essdd-3-195-2010.html http://www.earth-syst-sci-data-discuss.net/3/195/2010/essdd-3-195-2010.pdf 195 230 2010-06-28 An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1) A. M. Le Brocq a.lebrocq@exeter.ac.uk A. J. Payne A. Vieli Department of Geography, Durham University, Durham, UK School of Geography, University of Exeter, Exeter, UK Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK 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. 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