Update: A23a, the Iceberg “That Refuses to Die,” Caught in Antarctic Vortex

In January, we posted about an iceberg designated A23a, the world’s largest, which had begun to drift on the Antarctic Circumpolar Current into “iceberg alley.” As it drifted, it was being eroded by waves and melting in the relatively warmer … Continue reading

World’s Largest Iceberg, A23a, Eroding & Melting Rapidly as it Drifts into Warmer Water

In 1986, a massive iceberg, more than three times larger than New York City, calved off West Antarctica’s Filchner-Ronne Ice Shelf and immediately grounded on the floor of the Weddell Sea, where it remained stuck for almost four decades. In … Continue reading