Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#96 · 🔥 200 · 💬 150 · one year ago · sos.noaa.gov · indigodaddy · 📷
The animation shows tsunami wave amplitude 10 minutes after impact until 48 hours after impact, shown in hours below the scale. After the first 48 hours, the tsunami had mostly subsided except near the point of impact. The colors on the tsunami animation are associated with both positive and negative wave amplitudes, highlighting how the ocean ripples with both higher and lower water levels in the ocean basins during a catastrophic tsunami. An international group of researchers from academic institutions and government agencies, including NOAA's Pacific Marine Environmental Lab and Geophysical Fluid Dynamics Lab, combined numerical modeling and analysis of geological records to recreate the global impact of the tsunami generated by the asteroid. This dataset presents the first global simulation of the Chicxulub asteroid impact tsunami. A large computer program that models details of complex fluid flows, called a hydrocode, simulated the first 10 minutes of the tsunami generation, and two NOAA-developed models were then used to simulate the tsunami propagation around the global ocean. In a future study, PMEL's Vasily Titov plans to model the extent of coastal flooding caused by this tsunami, which will further inform tsunami impact forecasts.
Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves



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