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Iceberg A23a
Iceberg A23a is a large tabular iceberg which Ice calving, 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. its area is about , which makes it the current List of recorded icebergs by area, largest iceberg in the world. it has run aground off South Georgia island. The base Druzhnaya Station#Druzhnaya I, Druzhnaya I, which was originally established on the Filchner–Ronne Ice Shelf, was situated on the iceberg when it calved. Subsequently, a rescue mission was started in 1987 and ultimately moved/renamed the base to Druzhnaya Station#Druzhnaya III, Druzhnaya III. In November 2023, A23a was tracked moving past the northern tip of the Antarctic Peninsula and heading towards the Southern Ocean. On 1 December 2023, the iceberg was intercepted by the polar research ship RRS Sir David Attenborough, RRS ''Sir David Attenborough'', off the tip of the Antarctic Peninsula. At 10 Knot (unit), knot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceberg A23A Approaching South Georgia Island (MODIS 2025-02-21)
An iceberg is a piece of fresh water ice more than long that has broken off a glacier or an ice shelf and is floating freely in open water. Smaller chunks of floating glacially derived ice are called "growlers" or "bergy bits". Much of an iceberg is below the water's surface, which led to the expression "wikt:tip of the iceberg, tip of the iceberg" to illustrate a small part of a larger unseen issue. Icebergs are considered a List of ships sunk by icebergs, serious maritime hazard. Icebergs vary considerably in size and shape. Icebergs that Ice calving, calve from glaciers in Greenland are often irregularly shaped while Antarctica, Antarctic ice shelves often produce large tabular (table top) icebergs. The largest iceberg in recent history, named Iceberg B-15, B-15, was measured at nearly in 2000. The largest iceberg on record was an Antarctic tabular iceberg measuring sighted west of Scott Island, in the South Pacific Ocean, by the USS Glacier (AGB-4), USS ''Glacier'' on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
