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Not uncommon to have waves hitting the lee-side of a small island and at 180° from the direction of their formation/propagation, ..... sometimes larger than the amplitude of the waves hitting the 'windward' side. Rarely will there be a 'shadow zone' on the leeside of a small island where the waves are 'calm'.
This physics concept of 'wave diffraction & wave refraction' (or 'turning of the waves') is explained and illustrated: Refraction/Diffraction
figures 2 & 3.
Last edited by RichH; 12-21-2011 at 03:49 PM.