AI Summary

The Kronshtadskiy subglacial lake beneath East Antarctica’s Amery Ice Shelf drained between 2016 and 2021, leaving a broad depression that deepened by more than 6 m (20 ft) at its center. Satellite observations of the sinking surface allowed researchers to estimate that the lake lost roughly 78 million cubic meters (20.6 billion gallons) of water during that period. By analyzing the depression’s changing shape, Jihyun Moon and Hoonyol Lee of Kangwon National University reconstructed the sequence of the drainage event. Their findings appear in Scientific Reports.

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