ANTARCTICA: A giant iceberg almost the size of Greater London has broken away from the Brunt Ice Shelf in Antarctica.
The split, which occurred near the UK’s Halley research station, was recorded on Monday.
The British Antarctic Survey (BAS) relocated the station 23km inland of what they called Chasm One in 2016 after it began to widen.
It said the calving happened a decade after scientists first detected the growth of vast cracks in the ice.
The new iceberg is estimated to be around 1,550 sq km in area and around 150 metres thick.
BAS glaciologists said the calving was not linked to climate change and is part of the natural behaviour of the ice shelf.
They said the area of the ice shelf where the research station is located was unaffected by the split.
Since 2017, staff have been deployed to the station in a limited capacity, only during the Antarctic summer, which runs between November and March.
Professor Dame Jane Francis, the director of BAS, said: “Our glaciologists and operations teams have been anticipating this event.
“Measurements of the ice shelf are carried out multiple times a day using an automated network of high-precision GPS instruments that surround the station.
“These measure how the ice shelf is deforming and moving, and are compared to satellite images from ESA, NASA and the German satellite TerraSAR-X. All data are sent back to Cambridge for analysis, so we know what is happening even in the Antarctic winter - when there are no staff on the station, it is dark for 24 hours and the temperature falls below minus 50C (or -58F).”
It comes after another iceberg, known as A74, calved in February 2021. It has now drifted away from the Brunt Ice Shelf into the Weddell Sea.
- SKY NEWS
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