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White danger Avalanche!

Spectacular video of a huge powder avalanche at the Vallée de la Sionne test site in canton Valais, which was set off in 2011 by researchers from the SLF Institute for Snow and Avalanche Research in order to better understand avalanche dynamics. Footage courtesy of SLF.

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SWI swissinfo.ch on Instagram

SWI swissinfo.ch on Instagram

SWI swissinfo.ch on Instagram

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