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BEGIN:VEVENT
DTSTAMP:20260202T201256Z
LOCATION:Art of HPC - Plaza Lobby
DTSTART;TZID=America/Chicago:20251121T080000
DTEND;TZID=America/Chicago:20251121T120000
UID:submissions.supercomputing.org_SC25_sess608_art119@linklings.com
SUMMARY:High-Resolution Acoustic–Gravity Simulation for Tsunami Early Warn
 ing in the Cascadia Subduction Zone
DESCRIPTION:Stefan Henneking, Sreeram Venkat, Omar Ghattas, and Milinda Fe
 rnando (The University of Texas at Austin); Alice-Agnes Gabriel (Universit
 y of California, San Diego (UCSD)); and John Camier, Veselin Dobrev, and T
 zanio Kolev (Lawrence Livermore National Laboratory (LLNL))\n\nThis video 
 visualizes data obtained from large-scale computations of an acoustic–grav
 ity model implemented with the MFEM finite element library and performed o
 n the El Capitan supercomputer. The 3D high-fidelity model computes the co
 upled ocean acoustic and surface gravity waves for a magnitude 8.7 earthqu
 ake scenario spanning the full margin of the Cascadia subduction zone that
  stretches 1,000 km from northern California to British Columbia​. These c
 omputations are fundamental to enabling a newly developed digital twin met
 hodology for real-time warning of tsunamis. Specifically, this Bayesian in
 version-based digital twin employs acoustic pressure data from seafloor se
 nsors, along with 3D coupled acoustic–gravity wave equations, to infer ear
 thquake-induced spatiotemporal seafloor motion in real time and forecast t
 sunami propagation toward coastlines for early warning with quantified unc
 ertainties. Details of this work are available in Henneking et al., 2025, 
 to appear in the Proceedings of SC25.\n\nTag: Art of HPC\n\nRecording: Not
  Livestreamed, Not Recorded\n\nRegistration Category: Technical Program Re
 g Pass, Workshop Reg Pass, Tutorial Reg Pass, Exhibits Reg Pass\n\n
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