The Interaction of Tsunamis With Ocean Swell: An Experimental Study Conference Paper uri icon

abstract

  • Our objective is to investigate the effect of combined swelltsunami interaction on the nature of the tsunami in particular the surface elevation, the runup speed and the near-bottom velocities. Laboratory testing in the Tsunami Wave Basin at Oregon State University has been performed to simulate this interaction, with free surface elevations and near-bottom velocities measured at various locations over a plane sloping beach. Random wavetrains with varying initial mean steepness were generated in concert with the tsunami. Preliminary analysis of the data reveals that high steepness ocean swell changes the spectral signature of the tsunami, particularly at high frequencies. There is also a significant difference in location of the breakpoint of the tsunami with overriding swell.

name of conference

  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering

published proceedings

  • Volume 6: Ocean Engineering

author list (cited authors)

  • Kaihatu, J. M., & El Safty, H. M.

citation count

  • 1

complete list of authors

  • Kaihatu, James M||El Safty, Hoda M

publication date

  • January 2011

publisher