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JDR Vol.11 No.4 pp. 615-623
(2016)
doi: 10.20965/jdr.2016.p0615

Paper:

Precise Prediction of Coastal and Overland Flow Dynamics: A Grand Challenge or a Fool’s Errand

Patrick J. Lynett

Tsunami Research Center, University of Southern California
Los Angeles, CA, USA

Corresponding author,

Received:
July 14, 2016
Accepted:
July 21, 2016
Published:
August 1, 2016
Keywords:
tsunami currents, numerical modeling, uncertainty
Abstract
In this paper, the challenges in simulation of tsunami-induced currents are reviewed. Examples of tsunami dynamics in harbors, overland flow, and through urban environments are presented, with a focus on the numerical and natural variability in speed predictions. The discussion is largely aimed to show that high-confidence prediction of location-specific currents with a deterministic approach should not be possible in many cases. It is recommended that the tsunami community should look to some type of stochastic approach for current hazard modeling, whether that be a community-wide ensemble approach or a stochastic re-formation of our hydrodynamic theories. Until such tools are available, existing deterministic simulations of tsunami-induced currents require a high level of expert judgement in the analysis, presentation, and usage of model output.
Cite this article as:
P. Lynett, “Precise Prediction of Coastal and Overland Flow Dynamics: A Grand Challenge or a Fool’s Errand,” J. Disaster Res., Vol.11 No.4, pp. 615-623, 2016.
Data files:
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