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. Iceberg A-68 is the sixth largest iceberg ever recorded. At the time of calving, the 2,240 square mile (5,800 square km) iceberg weighed about 1,000 billion tons, and encompassed an area roughly the size of the state of Delaware. Freed from the Larsen C Ice Shelf, A-68 began to slowly drift north—slowly being the key word. As the new timelapse shows, this massive chunk of ice is in no rush. Adrian Luckman and Martin O’Leary from Project MIDAS, a UK-based Antarctic research project that’s investigating the effects of climate change on the Larsen C ice shelf, say the iceberg hasn’t drifted far on account of dense sea-ice cover in the Weddell Sea. “The iceberg has been pushed around by ocean currents, tides, and winds, and its northern end has repeatedly been grounded in shallower water near Bawden Ice Rise,” write Luckman and O’Leary in a statement. “These groundings led eventually to further pieces of the iceberg being shattered off in May 2018.” The new pieces aren’t large enough to be given their own identification labels, but the total area lost from A-68 in May alone was about the size of a small city, the researchers write. Over time, the… [Read full story]
You are here: / / Here’s What Antarctica’s Hugest Iceberg Has Been Doing Since It Broke Free
Gizmodo is a design, technology, science and science fiction website that also features articles on politics. It was originally launched as part of the Gawker Media network run by Nick Denton, and runs on the Kinja platform.