Abstract: The distribution of sea ice over Antarctic Ocean makes a great impact on the icebreakers' navigation, which is also an important content of Antarctic research. Maps of the sea ice over polar regions released by different international organizations are mostly stereographic projection, which can not directly overlap on Google tile-maps. To transform the polar stereographic projection map into Web Mercator projection map, which is the mainstream at present, to incise, number and storage the map tiles with appropriate resampling algorithms, according to the given scale, and to finally release and share the sea ice map tiles, are the main contents of this paper. The authors compared different resampling algorithms, analyzed the advantages and weak points of Nearest Neighbor Resampling, Bilinear Interpolation, and Bicubic interpolation. Over the polar area, Bilinear Interpolation algorithm is recommended to incise map tiles. Finally the sea ice tiles are overlaid on Google Maps in “XUELONG Online” information platform, integrated with the real-time and historical locations of icebreaker “XUELONG”. This contributes to the navigation of “XUELONG” across the floating sea ice area. This study is of great significance for the icebreaker’s route selection over sea ice area both in Antarctica and Arctic.

Key words: Antarctic sea ice, map projection, tile incision, image re-sampling