Tsunami Modelling

Simulation of 1993 tsunami at Okushiri Island.

Simulation of 1993 tsunami at Okushiri Island.

Project Members

Randy LeVeque

Project Description

Wave propagation algorithms, including a high-resolution finite volume methods, are used for solving hyperbolic systems of conservation laws. These methods require a Riemann solver for the shallow water equations that works robustly with bathymetry and dry states. Tsunamis are governed by the shallow water equations because ocean depths are shallow compared to the long wavelengths of tsunamis. Due to the vastly different spatial scales of interests when modeling tsunamis, for instance the wave propagation and interaction with the shoreline, adaptive mesh refinement is required obtain information about local scales with reasonable computation time.