Sediments in Lake Geneva reflect the 2008 financial crisis

A Lidar device set near the Cabane de Bertol (VS) performs 3D laser scanning to

A Lidar device set near the Cabane de Bertol (VS) performs 3D laser scanning to measure the height of sediments in the Borgne d’Arolla riverbed (bottom) and records the retreat of the Arolla glacier (top). © Stuart Lane / Université de Lausanne

 

An analysis of sediment transport in the Rhône Valley yields surprising results: melting glaciers overcompensated for the effect of the increased number of hydropower plants. A reduction in construction activities due to the 2008 financial crisis could also be seen in the data. This comprehensive study, the first of its kind in Europe, brings important new knowledge, in particular for flood prevention.

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