Presentation
High-Resolution Acoustic–Gravity Simulation for Tsunami Early Warning in the Cascadia Subduction Zone
SessionArt of HPC Gallery
DescriptionThis video visualizes data obtained from large-scale computations of an acoustic–gravity model implemented with the MFEM finite element library and performed on the El Capitan supercomputer. The 3D high-fidelity model computes the coupled ocean acoustic and surface gravity waves for a magnitude 8.7 earthquake scenario spanning the full margin of the Cascadia subduction zone that stretches 1,000 km from northern California to British Columbia. These computations are fundamental to enabling a newly developed digital twin methodology for real-time warning of tsunamis. Specifically, this Bayesian inversion-based digital twin employs acoustic pressure data from seafloor sensors, along with 3D coupled acoustic–gravity wave equations, to infer earthquake-induced spatiotemporal seafloor motion in real time and forecast tsunami propagation toward coastlines for early warning with quantified uncertainties. Details of this work are available in Henneking et al., 2025, to appear in the Proceedings of SC25.
Authors
Event Type
Art of HPC
TimeTuesday, 18 November 20258:00am - 7:00pm CST
LocationArt of HPC - Plaza Lobby
Art of HPC