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"Something Unusual...": Scientists Warn Of Potential Antarctic Vortex Split

"Something Unusual...": Scientists Warn Of Potential Antarctic Vortex Split

NDTV
Sunday, August 11, 2024 4:38 PM GMT

Scientists warn that repeated wind slowdowns could lead to a sudden and dramatic change in the vortex's direction.

The Antarctic polar vortex, a swirling mass of cold air above Antarctica, is showing unprecedented instability. After a series of dramatic temperature spikes in the stratosphere, there's a growing risk of the vortex splitting for the first time in over two decades. This could trigger significant warming in Antarctica and unusually hot, dry summers in Australia and South America, the New Scientist reported. 

Normally a stable feature, the vortex has weakened dramatically this year. Wind speeds have plummeted, allowing cold air to escape and warm air to invade Antarctica. Consequently, the vortex has shifted from its usual position, bringing cold weather to parts of Australia, New Zealand, and South America.

Scientists warn that repeated wind slowdowns could lead to a sudden and dramatic change in the vortex's direction, a phenomenon known as sudden stratospheric warming. This, combined with a potential split, could exacerbate the already extreme conditions. 

Read full story on NDTV
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