The Daytona Beach Large Wave Event of 3 July 1992

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by Robert J. Thieke, Univ of Florida, Gainesville, United States,
Robert G. Dean, Univ of Florida, Gainesville, United States,
Andrew W. Garcia, Univ of Florida, Gainesville, United States,

Document Type: Proceeding Paper

Part of: Ocean Wave Measurement and Analysis:

Abstract: The fundamental mechanisms behind the anomalous large wave which struck Daytona Beach on 3 July 1992 are addressed. Although the wave was originally believed to have resulted from a submarine landslide, both physical data and anecdotal accounts are presented which link the wave to a southward propagating squall system. The wave appears to be an example of general type of forced long wave motion which may be called a `squall-line surge', in which a resonant coupling occurs between the moving pressure front and free surface wave, resulting in potential large wave amplitudes. Historical precedent is found for the generation of such waves; two notable examples are compared with the wave which impacted Daytona Beach.

Subject Headings: Surface waves | Long waves | Water waves | Beaches | Wave pressure | Wave propagation | Wave generation | Submerging |

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