UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGEfWin 



Wave reflection from the movable-bed profile varied considerably as the 

 profile in both wave tanks developed from an initial planar (0.10) slope 

 to one closer to equilibrium. The reflection coefficient, Kn, varied from 

 0.08 to 0.30 in the 6-foot tank and from 0.03 to 0.16 in the 10-foot tank. 

 The variations in K^ can be related qualitatively to profile development. 



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

 sorting occurred as the finer material was eroded and deposited offshore. 



UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS P l>.GE(When Date Entered) 



