Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo 1.0.5-beta), supplement to: Timmermann, Ralph; Le Brocq, Anne M; Deen, Tara J; Domack, Eugene W; Dutrieux, Pierre; Galton-Fenzi, Ben; Hellmer, Hartmut H; Humbert, Angelika; Jansen, Daniela; Jenkins, Adrian; Lambrecht, Astrid; Makinson, Keith; Niederjasper, Fred; Nitsche, Frank-Oliver; Nøst, Ole Anders; Smedsrud, Lars Henrik; Smith, Walter (2010): A consistent dataset of Antarctic ice sheet topography, cavity geometry, and global bathymetry. Earth System Science Data, 2(2), 261-273

Ralph Timmermann, Anne M Le Brocq, Tara J Deen, Eugene W Domack, Pierre Dutrieux, Ben Galton-Fenzi, Hartmut H Hellmer, Angelika Humbert, Daniela Jansen, Adrian Jenkins, Astrid Lambrecht, Keith Makinson, Fred Niederjasper, Frank-Oliver Nitsche, Ole Anders Nøst, Lars Henrik Smedsrud & Walter Smith
Sub-ice shelf circulation and freezing/melting rates in ocean general circulation models depend critically on an accurate and consistent representation of cavity geometry. Existing global or pan-Antarctic data sets have turned out to contain various inconsistencies and inaccuracies. The goal of this work is to compile independent regional fields into a global data set. We use the S-2004 global 1-minute bathymetry as the backbone and add an improved version of the BEDMAP topography for an area...
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