Digital elevation model International Bathymetric Chart of the Southern Ocean. Downloaded June 2014 from http://doi.pangaea.de/10.1594/PANGAEA.805734?format=html Downloaded file: IBCSO_v1_is_PS71_500m_tif.zip For information on user restrictions, please visit http://doi.pangaea.de/10.1594/PANGAEA.805734?format=html. This page is also available offline in this folder, but note that terms might have changed since data download. References: Arndt, J. E., et al. (2013), The International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0—A new bathymetric compilation covering circum-Antarctic waters, Geophys. Res. Lett., 40, 3111–3117, doi:10.1002/grl.50413.