Home > Earth science > NASA photo shows collapse of iceberg

NASA photo shows collapse of iceberg

Check out this photo showing the collapse of an iceberg in the Southern Ocean earlier this month. The iceberg broke off from a larger ice floe about twelve years ago.

Called B-15J, the iceberg was a remnant of the much larger iceberg B-15, which broke off from Antarctica’s Ross ice sheet in 2000. Before breaking into smaller pieces B-15 was about 170 miles long and about 25 miles long.

Icebergs result from the calving of ice shelves, which are the edges of glaciers. When the ice shelves break up, a phenomenon that can happen with greater frequency as Earth’s atmosphere warms, the glacier itself is likely to begin to move faster.

When they do, more ice enters the oceans, which can cause increases in sea levels.

Icebergs melt as they move into warmer waters farther away from the poles.

Photo courtesy NASA. Hat tip to the folks at Our Amazing Planet for the heads up!

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