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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.
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 ...
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 world's largest iceberg is on the move after spinning for months in a Taylor Column. ... A23a calved from the Antarctica's Filchner Ice Shelf in 1986. The colossal iceberg remained attached to ...
Pages in category "Icebergs" The following 22 pages are in this category, out of 22 total. ... Iceberg A-74; Iceberg A-76; A23a; B. Iceberg B-9; Iceberg B-15; Iceberg ...
A GPS tracking unit, geotracking unit, satellite tracking unit, or simply tracker is a navigation device normally on a vehicle, asset, person or animal that uses satellite navigation to determine its movement and determine its WGS84 UTM geographic position (geotracking) to determine its location. [1]
Scientists use a radar satellite to take a "tape measure" to the world's biggest block of ice.
It is a satellite-based tracking and communicating system designed to provide command and control over distributed assets supporting and conducting theater operations. This system provides units with digital National Geospatial-Intelligence Agency maps, global positioning system ( GPS ) location data, and L-band (long band) satellite two-way ...