This toolbox has functions to access, interpolate, and plot IBCSO DEM data (http://ibcso.org). See the Examples tab for function syntax, description, and examples. This is a plugin for Antarctic Mapping Tools for Matlab (Greene et al., 2017).

Citing this toolbox:
Arndt, Jan Erik; Schenke, Hans Werner; Jakobsson, Martin; Nitsche, Frank-Oliver; Buys, Gwen; Goleby, Bruce; Rebesco, Michele; Bohoyo, Fernando; Hong, Jong Kuk; Black, Jenny; Greku, Rudolf Kh; Udintsev, Gleb B; Barrios, Felipe; Reynoso-Peralta, Walter; Taisei, Morishita; Wigley, Rochelle (2013): The International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0. PANGAEA, https://doi.org/10.1594/PANGAEA.805736,

Arndt, JE et al. (2013): The International Bathymetric Chart of the Southern Ocean Version 1.0 - A new bathymetric compilation covering circum-Antarctic waters. Geophysical Research Letters, 40(9), 1-7, https://doi.org/10.1002/grl.50413

Chad A. Greene, David E. Gwyther, and Donald D. Blankenship. Antarctic Mapping Tools for Matlab. Computers & Geosciences. 104 (2017) pp. 151-157 http://dx.doi.org/10.1016/j.cageo.2016.08.003