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Sentinels warn of dangerous ice crack

16 February 2017

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Following the appearance of a large crack in the ice shelf close to the Halley VI research station in Antarctica, information from the Copernicus Sentinel-1 and Sentinel-2 satellites helped to decide to close the base temporarily.

Nourished by an inflow of ice from grounded glaciers and snow accumulating on its surface, Brunt Ice Shelf is a floating ice sheet in the Weddell Sea Sector of Antarctica. The floating ice moves steadily towards the ocean, where it occasionally calves off as icebergs.

Cracks often appear on shelves as the ice deforms. However, rapidly expanding cracks indicate impending calving.

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Satellites shed new light on earthquakes

 24 March 2017

Satellite radar scans of last year's earthquake in New Zealand are changing the way we are thinking about earthquake hazards in regions where our planet's tectonic plates meet.
Sentinel-1Kaikoura quake
The 7.8-magnitude quake that struck New Zealand's South Island near the town of Kaikoura on 14 November was one of the most comprehensively recorded earthquakes in history.