Tsunami Squares: Earthquake Driven Inundation Mapping and Validation by Comparison to the Regional Ocean Modeling System
Session: Advances in the Science and Observation of Tsunamis [Poster]
Type: Poster
Date: 4/22/2021
Presentation Time: 03:45 PM Pacific
Description:
A promising tsunami warning system outlined here links Total Electron Content (TEC) disturbances in the ionosphere detected by GNSS satellites to maps of inundated areas along the affected coastlines. This will be accomplished through a pipeline of earthquake, ionosphere, and tsunami simulations. The focus of this paper is to demonstrate the feasibility and validity of our tsunami simulator for use in this simulation pipeline. The simulator we have developed is called Tsunami Squares, a computationally inexpensive program that employs a unique method of propagating water according to shallow water theory. Unlike other wave simulators, Tsunami Squares can easily propagate waves from sea to land, allowing flooded areas along the coast to be mapped. To validate its accuracy, a comparison is made to the Regional Ocean Modeling System tsunami simulator, which solves the Navier Stokes equations directly using a finite-difference method. The two simulation techniques show good agreement when compared over the 2011 Japan event, the 2010 Chile event, and the Indian Ocean event of 2004. Examples of inundation plots along with runup height comparisons between Tsunami Squares and observed data are displayed here to demonstrate our ability to produce accurate inundation plots for such a warning system.
Presenting Author: David Grzan
Student Presenter: Yes
Authors
David Grzan Presenting Author Corresponding Author dgrzan@ucdavis.edu University of California, Davis |
John Rundle jbrundle@ucdavis.edu University of California, Davis |
John Wilson jhnwilson@ucdavis.edu University of California, Davis |
Steven Ward ward@es.ucsc.edu University of California, Santa Cruz |
Tony Song tony.song@jpl.nasa.gov NASA Jet Propulsion Laboratory |
Andrea Donnellan andrea.donnellan@jpl.nasa.gov NASA Jet Propulsion Laboratory |
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Tsunami Squares: Earthquake Driven Inundation Mapping and Validation by Comparison to the Regional Ocean Modeling System
Session
Advances in the Science and Observation of Tsunamis