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Timelapse video provides insight into Swiss landslide behaviour

Monitoring of a landslide in Val Parghera for the Swiss canton of Grisons using webcams has helped monitoring consultant Geopraevent gain insight into the failure mechanism.

Monitoring of the landslide started in summer 2013 and interferometric radar measurements and laser scans showed surface velocities of up to 100mm per hour and as low as 1mm per month. Footage from monitoring the landslide over the last 20 months has helped develop further understanding of the failure mechanism.

Grisons called in Geopraevent to assess the landslide in April 2013 after snow melt and rainfall activated extensive terrain movements that forced closure of the cantonal road and also presented a risk to the Rhaetian Railway and A13 highway.

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