Los Angeles and Long Beach Harbors Model Enhancement Program: Measured Response of Moored Ships to Long-Period Waves
1991
McGehee, David D.
The Ports of Los Angeles and Long Beach (LA/LB), California, are conducting planning studies for major expansion. This plan calls for reclamation of nearly 10 sq km of new landfill, construction of 38 new terminals, and the dredging or deepening of over 11 km of deep-draft channels. The development will affect the tidal circulation pattern in the harbor and the harbor resonance characteristics. Adequate circulation is necessary to ensure harbor flushing and acceptable water quality. The objective of the ship motion data collection effort was to obtain calibration and verification data sets for a numerical model of moored ship response to wind and waves. To validate the model, synchronous time series data were needed on the incident wave conditions outside the harbor, the mean water level, the harbor oscillation/response and wind conditions near the moored ship, the complete six degree-of-freedom ship response, and mooring line and dock/fender reactions. In addition, ship characteristics, mooring line geometry characteristics, and loading history were required.
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