Abstract
A mathematical model is derived to describe the generation and propagation of water waves by a submarine landslide in two horizontal dimensions (2HD). The model consists of a depth-integrated continuity equation and a vector momentum equation, in which the ground movement is the forcing function. These equations include high nonlinear, but weak frequency dispersion effects. The model is capable of describing wave propagation from relatively deep water to shallow water. These Boussinesq-type equations are coupled with a moving boundary algorithm, allowing for the prediction of wave runup along the shoreline. The numerical model is able to accurately simulate the tsunamis generated by subaerial slides, as is shown by comparison with an analytical solution. A variety of 2HD slide setups will be run, including both submerged and subaerial slides. The maximum vertical thickness of the slide, as well as the length to width ratio are varied for a number of different slopes, and the results will be discussed.
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Lynett, P., Liu, P.LF., Synolakis, C.E. (2003). Numerical Modeling of Tsunami Generation by Subaerial and Submerged Landslides. In: Locat, J., Mienert, J., Boisvert, L. (eds) Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research, vol 19. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0093-2_9
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DOI: https://doi.org/10.1007/978-94-010-0093-2_9
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