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A Reverse Dynamical Investigation of the Catastrophic Wood-Snow avalanche of 18 January 2017 at Rigopiano, Gran Sasso National Park, Italy

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International Journal of Disaster Risk Science 2021年第1期12卷 40-55页

作者： Barbara Frigo Perry Bartelt Bernardino Chiaia Igor Chiambretti Margherita Maggioni Department of Structural Building and Geotechnical Engineering-DISEGPolitecnico di Torino10129 TurinItaly WSL Institute for Snow and avalanche Research SLF 7260 Davos DorfSwitzerland Associazione Interregionale di Coordinamento e documentazione per i problemi inerenti alla Neve e alle Valanghe–AINEVA 38122 TrentoItaly Dipartimento di Scienze Agrarie Universita`di TorinoForestali e Alimentari–DISAFA10095 GrugliascoTOItaly Centro Interdipartimentale sui Rischi Naturali in Ambiente Montano e Collinare–NatRisk 10095 GrugliascoTOItaly

On 18 January 2017 a catastrophic avalanche destroyed the Rigopiano Gran Sasso Resort&Wellness(Rigopiano Hotel)in the Gran Sasso National Park in Italy,with 40 people trapped and a death toll of *** article describes the location of the disaster and the general meteorological scenario,with field investigations to provide insight on the avalanche dynamics and its interaction with the hotel *** data gathered in situ suggest that the avalanche was a fluidized dry snow avalanche,which entrained a sligthtly warmer snow cover along the path and reached extremely long runout distances with braking effect from mountain *** avalanche that reached the Rigopiano area was a‘‘wood-snow’’avalanche—a mixture of snow and uprooted and crushed trees,rocks,and other *** were no direct eyewitnesses at the event,and a quick post-event survey used a numerical model to analyze the dynamics of the event to estimate the pressure,velocity,and direction of the natural flow and the causes for the destruction of the *** the magnitude and the damage caused by the event,the avalanche was at a high to very high intensity scale.

关键词： avalanche flow velocity avalanche impact pressure Forensic field investigation Italy Rigopiano disaster Wood-snow avalanche

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