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Comparison of Model and Field Results for Barbers Point Harbor

by Michael J. Briggs, USAE Waterways Experiment Station, Vicksburg, United States,
Linda S. Lillycrop, USAE Waterways Experiment Station, Vicksburg, United States,
David D. McGehee, USAE Waterways Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Coastal Engineering Practice

Abstract:

As waves travel into harbors from deep water, nonlinear processes lead to transfers of energy from the wind wave frequencies to long waves with periods of the order of several minutes. If the periods of these long waves correspond with resonant periods of the harbor, harbor oscillations can produce dangerous navigation and mooring conditions. In 1988 a Coast Guard vessel was entering a drydock in Barbers Point harbor on the island of Oahu when they both sustained damage due to harbor seiching under relatively calm conditions outside the harbor. Transfer functions of harbor response to long period energy from physical and numerical models are compared to actual harbor measurements. The availability of physical, numerical, and field measurements provides an excellent example of good coastal engineering practice in the design and modification of harbors.

Subject Headings: Ports and harbors | Wind waves | Numerical models | Water waves | Long waves | Computer models | Wave measurement

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