Parallel adaptive numerical simulation of dry avalanches over natural terrain

of our new methodology are the use of a depth-averaged model of the conservation laws and an adaptive grid Godunov solver to solve the resulting equations. The software is designed to run on distributed memory supercomputers and makes use of digital elevation data dynamically, i.e., refine the grid and input data to finer resolutions to better capture flow features as the flow evolves. Our simulations are validated using quantitative and qualitative comparisons to tabletop experiments and data from field observations. Our software is freely available and uses only publicly available libraries and hence can be used on a wide range of hardware and software platforms.