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20. Abstract (Continued). 



During the summer months the beach profile progressively changed with the 

 seaward progradation of the berm crest by sand accretion. This change was 

 caused by onshore transport of sand from immediately offshore depths of less 

 than -20 feet (-6.1 meters) relative to MSL. 



The transition from the summer to the winter beach profile was abrupt with 

 the coincident occurrence of high waves and tides. Periods of high waves 

 during high tides resulted in wave swash overtopping the berm crest and quickly 

 eroding the beach. The rapid shoreward retreat of the berm crest caused by 

 the offshore transport of sand was accompanied by a corresponding deposition 

 of sand offshore at depths less than -50 feet (-9 meters) relative to MSL. 



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