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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 January 2025, its area is about 3,500 square kilometres (1,400 sq mi), which makes it the current largest iceberg in the world.
Iceberg A-68 on 20 July 2017 The drift of Iceberg A-68A from 1 May 2018 to 26 August 2018. Iceberg A-68 was a giant tabular iceberg adrift in the South Atlantic, having calved from Antarctica's Larsen C ice shelf in July 2017. [1] [2] [3] By 16 April 2021, no significant fragments remained. [4]
The split of the A38-B iceberg is recorded in this series of images. The iceberg was originally part of the massive A-38 iceberg, which broke from the Ronne Ice Shelf in Antarctica [3] B-15A: 6,400 2002 Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2002: A-68: 5,800 175 50 2017 Calving crack in the Larsen C ice shelf [2 ...
Iceberg B-15 was the largest recorded iceberg by area. [ Note 1 ] It measured around 295 by 37 kilometres (159 by 20 nautical miles), with a surface area of 11,000 square kilometres (3,200 square nautical miles), about the size of the island of Jamaica .
In May 2021, Iceberg A-76 broke off the northwest corner of the shelf. At 4320 km 2, [4] it is larger than Majorca, several times larger than Iceberg A-74 which calved in the same year, or approximately 14% the size of Belgium. The ice of the Filchner–Ronne ice shelf can be as thick as 600 m; the water below is about 1400 m deep at the ...
An iceberg in the Arctic Ocean. An iceberg is a piece of fresh water ice more than 15 meters (16 yards) long [1] that has broken off a glacier or an ice shelf and is floating freely in open water. [2] [3] Smaller chunks of floating glacially derived ice are called "growlers" or "bergy bits".
A large section of the Larsen C shelf broke away in July 2017 to form an iceberg known as A-68. [6] The ice shelf originally covered an area of 85,000 square kilometres (33,000 sq mi), but following the disintegration in the north and the break away of iceberg A-17 [failed verification (See discussion.
On this map, arrows mark warm water currents, which are the main factor in the projected demise of the Thwaites Glacier. [ 23 ] Between 1992 and 2017, Thwaites Glacier retreated at between 0.3 km (0.19 mi) and 0.8 km (0.50 mi) annually, depending on the sector, [ 42 ] and experienced a net loss of over 600 billion tons of ice as the result. [ 48 ]