Downloaded September 2012 from http://www.ngdc.noaa.gov/mgg/global/global.html

http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/cell_registered/georeferenced_tiff/

Downloaded file: ETOPO1_Ice_c_geotiff.zip

Original image file name: ETOPO1_Ice_c.tif

For information on user restrictions, please visit http://www.ngdc.noaa.gov/ngdcinfo/privacy.html. This page is also available offline in this folder, but note that terms might have changed since data download.