Figure 1. Application of Model I produces an intercept (a) , 

 which may be a useful estimate of a component of 

 longshore flow which is independent of wave con- 

 ditions and presumably pervades the entire data 

 set. 



o> 



/• 



o» 



/ 



o 



E 





o 



1 / 



o 



A - / • 



A 



Wave Forces 



a 



• ; s — Negative Intercept 



Figure 2. Application of Model I identified a threshold value 

 below which waves cause no damage. A negative inter- 

 cept is produced, but is of no interest in this 

 particular problem. 



10 



