World's largest iceberg A23a, larger than London, is trapped and spinning near Antarctica due to a vortex above Pirie Bank.
World's largest iceberg A23a, larger than London, has been trapped and spinning in place for months near Antarctica, contrary to its expected movement with ocean currents. Scientists believe it's stuck atop a rotating water cylinder called a Taylor Column, caused by a vortex above Pirie Bank. This unusual behavior delays the iceberg's decay and highlights the importance of understanding ocean floor shapes, as only a quarter of Earth's seafloor has been mapped.
August 03, 2024
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