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A Massive Iceberg Broke off Greenland. New Images Show What Led up to It
Gizmodo • • general
Key Points:
- A massive 29-square-mile iceberg broke off from Greenland’s Petermann Glacier in August, marking the largest loss of floating ice from the glacier in over a decade, as captured by ESA’s Sentinel-1 satellite.
- The calving event was preceded by visible fractures in the glacier’s ice tongue months earlier, highlighting the glacier’s increasing fragility and ongoing changes.
- Petermann Glacier frequently sheds large icebergs, with previous significant calving events in 2010 and 2012, and scientists expect at least two more sizable ice islands to break off soon.
- Ice islands, characterized by their flat, plateau-like surfaces, are rare compared to typical icebergs and can persist for years drifting in the Arctic Ocean before disintegrating.
- Researchers will continue monitoring the glacier and the new ice island using satellite and aerial data to understand calving processes and their broader environmental impacts.
