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|Title:||Ruinon landslide (Valfurva, Italy) activity in relation to rainfall by means of GBInSAR monitoring|
|Authors:||DEL VENTISETTE Chiara; CASAGLI Nicola; FORTUNY GUASCH Joaquim; TARCHI Dario|
|Citation:||LANDSLIDES vol. 9 no. 4 p. 497-509|
|Type:||Articles in periodicals and books|
|Abstract:||The active Ruinon rockslide is located on the left bank of the Frodolfo River v alley (Valfurva, Italian Alps) and is developed on the Confinale deep-seated gravitational slope deformation. Ruinon landslide is a major hazard f or v alley inhabitants in that rapid movement might dam the stream and create a debris f low. The landslide is strongly controlled by preexisting structural features and is believ ed to hav e been triggered by postglacial debuttressing. Ground-based radar interferometry has been used to map surf ace deformation over time of the entire unstable zone of Ruinon landslide with high spatial resolution and at a very high temporal acquisition rate (about f iv e images per hour). The activity of the landslide shows strong periodicity , with summer and autumn accelerations and winter deceleration. From a correlation between the landslide acceleration and a class of rainfall event, we deduce the specific rainfall conditions that accelerate the instability of the landslide area. The study results suggest an improved tool f or early warning of events of potentially catastrophic landslide instability .|
|JRC Directorate:||Space, Security and Migration|
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