Wave Refraction Near San Pedro Bay, California

by Yuan Jen,


Serial Information: Journal of the Waterways and Harbors Division, 1969, Vol. 95, Issue 3, Pg. 379-394


Document Type: Journal Paper

Abstract: A numerical procedure for calculation and plotting of wave refraction diagrams was applied to the San Pedro Bay area, California. Waves from all major directions with periods of 15 sec, 30 sec, 60 sec, and longer were considered in the computation. The results are presented in the form of refraction diagrams and contour diagrams of equal wave heights and compared with previous available graphical analyses. It was found that the San Pedro Bay and the Los Angeles-Long Beach Harbor complex is protected from severe wave attacks by the presence of offshore islands which serve as natural wave barriers so that waves would either break on them or diffract around them resulting in reduction of wave energy. The degree of protection afforded by the offshore islands varies with the direction and periods of incoming waves; this is discussed in detail.

Subject Headings: Bays | Wave refraction | Islands | Graphic methods | Computing in civil engineering | Coastal management | Beaches | Numerical methods | North America | California | United States

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