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A23a is a large tabular iceberg which calved from the Filchner–Ronne Ice Shelf in 1986. It was stuck on the sea bed for many years but then started moving in 2020. As of February 2024, its area is about 3,900 square kilometres (1,500 sq mi), which makes it the current largest iceberg in the world. [2] [3]
A23a has held the “largest current iceberg” title several times since the 1980s, occasionally being surpassed by larger but shorter-lived icebergs, including A68 in 2017 and A76 in 2021.
The iceberg was named "A23a" due to the naming system of the U.s. National Ice Center (USNIC), in which "A" denotes the Bellingshausen/Weddell Sea quadrant the iceberg was from, ...
The mega A23a iceberg has broken free from its position north of the South Orkney Islands and is now drifting in the Southern Ocean, scientists said. “It’s exciting to see A23a on the move ...
November 27: The British Antarctic Survey confirms that the world's largest iceberg, A23a, is now leaving the Weddell Sea and drifting into the Southern Ocean after being in the Weddell Sea for more than 30 years. The iceberg is expected to follow the Antarctic Circumpolar Current and continue to drift away from Antarctica. [3]
The iceberg, named A23a, is about 400 meters (1,312 feet) thick, and almost 4,000 square kilometers (1,544 square miles) in area. ... A23a has held the “largest current iceberg” title several ...
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The world's biggest iceberg is on the move again after being trapped in a vortex for most of the year. A23a is 3,800 sq km (1,500 sq miles), which is more than twice the size of Greater London ...