But now, according to the British Antarctic Survey (BAS), its course has been interrupted after becoming trapped in an ocean vortex. The iceberg, named A23a, is slowly spinning around and around ...

For example, in August 2024, A23a became trapped in a spinning ocean vortex near the South Orkney Islands. Each day, it ...

Like ocean waves, Rossby waves can "break" on top of the polar vortex, weakening it and — in extreme cases — reversing the direction of its winds. Last year, a sudden stratospheric warming ...

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