Since it snapped off the Larsen C ice shelf in July 2017, the trillion-tonne iceberg known as A68 has spent most of its time stuck in the mud. Now, new satellite data reveals that the ‘berg made its biggest move yet over the austral winter — a dramatic counterclockwise rotation that shows no signs of stopping.
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It was a year ago at this time that Antarctica’s Larsen C Ice Shelf gave birth to Iceberg A-68, one of the largest chunks of ice ever recorded. A new timelapse video made from satellite imagery shows the rift, calving and subsequent journey of the iceberg over the past 12 months.
Back in July, satellite images showed an iceberg bigger than the state of Delaware calving and drifting away from Antarctica's Larsen C ice shelf. Well, it's summertime now in Antarctica, which means scientists are finally able to view this behemoth from up close - and the pictures are just as spectacular as we imagined.
Two months ago, an iceberg half the size of Jamaica tore itself loose from Antarctica's Larsen C Ice Shelf. As it slowly drifts north, this massive berg is exposing an area that's been covered in ice for the past 120,000 years. An international agreement has now been put in place to protect this emerging area and keep it in pristine condition.
In a dramatic development, the giant rift in the Larsen C ice shelf has grown an additional 17km since last week, and the leading tip of the crack is now exceptionally close to the ocean. There's now very little to prevent a complete collapse -- an event that will produce one of the largest icebergs in recorded history.