Figure 1. Beach nourishment operation, Mayport, Florida 

 (courtesy of U.S. Army Engineer District, 

 Jacksonville) . 



I tvaih Zone I 



Dry Sond 



'Intertidol Filter- Penetrotion of 

 interstitial spoce - grovity 

 (lo« during tidal cycle 



Sub.tidal Filter -Due to oscillotory 

 wove action 



Figure 2. High-energy sand beach system (modified from Cox, 1976) 



