A new map traces the shape of the remote ocean bed surrounding Antarctica.
Scientists have made the most precise map yet of the mountains, canyons and plains that make up the floor of Antarctica's encircling Southern Ocean.
The IBCSO project and others like it around the world are gradually filling in the gaps in our scant knowledge of the bottom of the world's oceans. Back then, IBCSO began only at 60 degrees South, and less than 17% of its grid boxes had a modern measurement. Much of the information in the chart comes from the ice-strengthened ships that support scientific endeavours in Antarctica, including from the UK's former polar ship, the RRS James Clark Ross.
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