Abstract
AbstractImpulse waves are generated by avalanches, landslides, rock slides, rock falls, or glacier calving impact into natural lakes or reservoirs. Similar to tsunamis, the generated long waves imply a large damage potential to the surrounding infrastructure and settlements. The current hazard assessment is mainly limited to plane wave run-up because previous studies were related to linearly inclined slopes. The presented study therefore focuses on solitary impulse wave–induced overland flow on a horizontal shore. Physical experiments involved a two-dimensional test setup in a wave channel including a piston-type wave generator and an inclined shore with a connected horizontal overland flow plane. Particular focus is given to the transition from the inclined to the horizontal portion, where the orbital wave motion is transformed into a shore-parallel flow. The overland flow features were investigated by means of ultrasonic distance sensors and particle image velocimetry for various values of relative wave...
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