l.rjfT.A.S.STFTFn 



SECURITY CLASSIFICATION OF THIS PAGEfHTian Data Bnltred) 



Even with the fine-grained, well-sorted sediment used, a measurable sort- 

 ing occurred as the finer material was eroded and deposited on other arts of 

 the profile. 



The reflection coefficient, K^, varied from 0.04 to 0.27 and the variations 

 in Kj^ can be related qualitatively to profile development. The reflection 

 coefficient from the foreshore zone was between 0.06 and 0.12. The large vari- 

 ation in the total profile K^ appears to be the result of changes in the ele- 

 vation of the offshore reflecting zone and changes in the distance between the 

 foreshore and offshore reflecting zones. 



2 U!]CLASSIFILD 



SECURITY CLASSIFICATION OF THIS PAGEfHTion Da 



