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British Antarctic Survey
The mission to determine the impact of the giant A-68a iceberg on the important marine ecosystem of sub-Antarctic South Georgia is a success according to a team of researchers and engineers, from British Antarctic Survey (BAS) and National Oceanography Centre (NOC). This week (Monday 19 April) the U.S National Ice Center declared ‘the end’ of the A68 iceberg, because its fragments are now too small to track. This coincides with the return of the mission ship to Southampton in the UK last week (13 April).
The team are piloting two submersible robotic gliders deployed in mid-February from the NOC-operated research ship RRS James Cook. The gliders named ‘Doombar – 405’ and ‘HSB – 439’, were launched into the water some 200kms offshore from South Georgia. Their mission was to monitor the effects of the melting of the ‘mega-berg’ on the ecosystem.
Scientists have completed the first phase of a research mission to determine the impact of the giant A-68a iceberg on one of the world's most important.
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Alice Marzocchi, NOC
It is a relief when we finally see the iceberg emerging, first as a line on the ship’s radar and then as a wall of ice emerging from a foggy horizon, stretching further than we can see.
This is the remains of iceberg A-68, the third largest iceberg ever recorded, which broke away from Antarctica’s Larsen C ice shelf in 2017. After drifting northwards, A-68 was on a collision course with the island of South Georgia in December 2020 before being … Continue reading Subscribe now for unlimited access
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