READ ALSO: Thwaites Glacier Closer to Disintegration Than Previously Thought: What Could Happen If the Doomsday Glacier Melts? How Will It Affect Nearby Thwaites Glacier? Natural color images of the area will be available again when sunlight returns in late August. Warm waters reaching into the Amundsen Sea Embayment are believed to have thinned the iceberg from below, making it lose contact with the seafloor and allowing it to drift away with the wind, waves, and tides.īy mid-April, the Antarctic winter had nearly engulfed the area, and the berg was difficult to see from satellite images. Since icebergs do not contribute to sea level rise, but land ice from glaciers does, their impact is significant. Grounded icebergs play a crucial role in stabilizing the sea ice in the area, which helps slow the flow of glacial ice into the ocean. Iceberg B-22A's long lifespan is uncommon but not unheard of, and its unmooring is significant because it could impact the future of Thwaites Glacier. This movement is visible in an animation created using images from NASA's Terra and Aqua satellites. For five months, it drifted about 110 miles away from the continent. However, in the autumn of 2022, Iceberg B-22A broke free from the seafloor and began drifting northwest. As per NASA's Earth Observatory, the iceberg only moved an average of 1.6 miles per year, making it one of the slowest-moving icebergs on record. The enormous Iceberg B-22A that broke off from Thwaites Glacier in 2002 had been floating near the Antarctic coast until it became stuck on the seafloor in 2012. An iceberg floats near the coast of West Antarctica as seen from a window of a NASA Operation IceBridge airplane on Octoin-flight over Antarctica.
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