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Tsunami Generation by 3D Deformable Granular Landslides
Landslide generated tsunamis are particularly hazardous in enclosed water bodies. Topographical and bathymetric features can either dissipate or enhance the generated waves leading to potentially extensive damages. To study the effect of such features landslide generated tsunami experiments were conducted in physical scale models representing fjords, headlands and farfield hill slopes. A pneumatic landslide tsunami generator deploys unconfined deformable granular landslides on a hill slope which impact the water surface and thereby generate tsunami waves. The instrumentation setup includes multiple cameras, particle image velocimetry, acoustic transducers and an array of wave gauges. Landslide measurements are made to characterize the source properties. The wave profile recordings with and without the topographic features provide insights into their effects on the tsunami wave characteristics. A fjord setup traps and distributes the wave energy along the fjord slopes in the channel, while a headland captures only part of the energy and radiates the rest into the open basin.
Tsunami Generation by 3D Deformable Granular Landslides
Landslide generated tsunamis are particularly hazardous in enclosed water bodies. Topographical and bathymetric features can either dissipate or enhance the generated waves leading to potentially extensive damages. To study the effect of such features landslide generated tsunami experiments were conducted in physical scale models representing fjords, headlands and farfield hill slopes. A pneumatic landslide tsunami generator deploys unconfined deformable granular landslides on a hill slope which impact the water surface and thereby generate tsunami waves. The instrumentation setup includes multiple cameras, particle image velocimetry, acoustic transducers and an array of wave gauges. Landslide measurements are made to characterize the source properties. The wave profile recordings with and without the topographic features provide insights into their effects on the tsunami wave characteristics. A fjord setup traps and distributes the wave energy along the fjord slopes in the channel, while a headland captures only part of the energy and radiates the rest into the open basin.
Tsunami Generation by 3D Deformable Granular Landslides
Mohammed, Fahad (author) / McFall, Brian C. (author) / Fritz, Hermann M. (author)
Solutions to Coastal Disasters Conference 2011 ; 2011 ; Anchorage, Alaska, United States
Solutions to Coastal Disasters 2011 ; 310-320
2011-06-21
Conference paper
Electronic Resource
English
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