Joint Occurrences in Coastal Flooding

by M. Aziz Tayfun, (A.M.ASCE), Assoc. Prof.; Dept. of Marine Sci. and Engrg., North Carolina State Univ., Raleigh, N.C.,

Serial Information: Journal of the Waterway Port Coastal and Ocean Division, 1979, Vol. 105, Issue 2, Pg. 107-123

Document Type: Journal Paper

Discussion: Houston James R. (See full record)
Closure: (See full record)

Abstract: Extreme levels of coastal flooding arising from the joint occurrence of a rare event such as a hurricane or a tsunami with the astronomical tide have a stochastic nature resulting from the random occurrence of the primary event relative to the phase of the astronomical tide. Numerical means of computing the frequencies of peak flood levels by constructing equally likely combinations of tides with the record of a rare event are costly and impractical to apply. This paper presents an approximate analytic approach to construct the probability structure of extremal crest heights arising from such joint occurrences based on simple astronomical tide models. Examples are given to illustrate applications to tsunamis and storm surges.

Subject Headings: Tides | Floods | Joints | Astronomy | Coastal environment | Tsunamis | Hurricanes and typhoons | Stochastic processes |

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