A massive iceberg has broken off from the Northern Hemisphere’s longest floating ice tongue, and researchers are anticipating at least two more calving events from Greenland’s Petermann Glacier in the near future.
Satellite imagery from the European Space Agency’s Sentinel-1 mission first revealed deterioration in Petermann Glacier’s ice tongue—a floating sheet of ice that extends 43 miles (70 kilometers) out into the Arctic Ocean—on August 3 before the ice island completely detached from the eastern side of the glacier the next day.
“We’ve anticipated this break for years, and seeing it finally happen is remarkable,” Adam Garbo, a doctoral…
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