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The largest iceberg in the world is stuck in the "trap" of the ocean

2024-08-05 21:21:31Lifestyle SHKRUAR NGA REDAKSIA VOX
The largest iceberg in the world is stuck in the "trap" of the ocean
Iceberg A23a

Something extraordinary has happened to A23a, the largest iceberg in the world.

For months it has been circling north of Antarctica, having to race alongside Earth's most powerful ocean current.

Scientists say the frozen blob, which is more than twice the size of London, is trapped atop a large rotating cylinder of water.

It's a phenomenon oceanographers call a Taylor plume – and it's possible that A23a might not escape its prison for years.

“Usually you think of icebergs as transient things; they crumble and melt. But not this one," observed polar expert Prof Mark Brandon.

"A23a is the iceberg that just refuses to die," the Open University researcher told BBC News.

For three decades the iceberg was a static "ice island", it did not move. It wasn't until 2020 that it re-floated and started moving again, slowly at first, before heading north towards warmer air and waters.

In early April this year, A23a entered the Antarctic Circumpolar Current (ACC) – a current that moves a hundred times more water around the globe than all the Earth's rivers combined.


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