Instruments on a massive berg help pinpoint previously unreported undersea ridge
During the last couple of decades, scientists poring over satellite images have noticed several large icebergs breaking up as they wafted along a particular stretch of the Antarctic coast. Now, thanks to data gathered in part by an instrument-laden iceberg, the researchers know why: The ice masses were crashing into a previously unreported submarine ridge.
Most icebergs that calve from Antarctica’s Ross Ice Shelf are carried by shore-hugging currents past Cape Adare, a section of coast that lies south of New Zealand. That remote str