But while uncertainty remains about exactly what will happen in West Antarctica. The calving of the 1,636 sq km iceberg is not linked to climate change, scientists say, but could speed up further melting. Other recent research has suggested chunks of ice that break off the glacier will help arrest further collapse. The Thwaites Glacier, located on the West Antarctic ice sheet, is often nicknamed the "doomsday glacier" due to its size and its rate of disintegration. Lisa Cox Mon 20.33 EDT First published on Mon 20.26 EDT A gigantic iceberg about the size of greater London has calved from the Amery ice shelf in east Antarctica. Giant iceberg breaks off east Antarctica. That record is held by an iceberg called B-15, which measured a massive 4,247 square miles, and broke off from the Ross Ice Shelf of Antarctica in March 2000.Īntarctica is the coldest and driest continent on Earth, containing around 70 percent of the planet's freshwater frozen inside enormous ice sheets. The 1,255-sq-mile (3,250-sq-km) Larsen B ice shelf was known to be melting fast but no one had predicted that it would take just one month for the 200-metre-thick behemoth to completely. While B-22A is a large iceberg, it isn't anywhere near the largest one ever recorded. Bigg, an emeritus professor of Earth system science at the University of Sheffield in England, previously told Newsweek. "Large ice sheets around Antarctica do occasionally calve large icebergs, just as part of the natural process of the ice moving towards the sea," Grant R. The iceberg is the size of Greater London. NASA Earth Observatory video by Lauren Dauphin, using MODIS data from NASA EOSDIS LANCE and GIBS/Worldview. Large icebergs that break off from a glacier front and flip onto the glacier face can push the entire glacier backwards momentarily, producing glacial. British Antarctic Survey (BAS) has released the first aerial pictures of the massive A81 iceberg that calved from the Brunt Ice Shelf in late January. Top left: October 24, 2022, Top right: December 3, 2022, Bottom left: January 29, 2023, Bottom right: March 26, 2023. NASA images using showing the B-22 iceberg as it moves away from the ice shelf over several months.
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