The Pawsey Supercomputing Centre

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Development of a better physics behind the tsunami modelling and coastal infrastructure behaviour

The numerical simulation of tsunami waves typically uses some simple hypothesis resulting in the non-dispersive long wave theory over a rigid substrate. Since the 70s, this simple set of equation has been used and demonstrated to be a good approximation for many tsunamis. However, two well- recorded tsunami events (Maule, Chile 2010 and Tohoku, Japan 2011) demonstrate that this approximation is insufficient for accurately modelling tsunami waveforms. The aim of this project is to develop methods for incorporating improved physics, such as the Boussinesq approximation and elastic loading effects, into the numerical tsunami simulations in order to accurately model tsunamis in the deep ocean, as well as improve simulation of smaller-scale flows in ports and harbours.

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