CE Case 101 



a 



0-1 



o 



1-3 



A 



3-5 



+ 



5-10 



X 



10-12 







12-15 



V 



15-20 



B 



20-25.5 



* 



25.5-30 



Distance from Initial Shoreline (m) 



Figure 35. Calculated distributions of net cross -shore sand 

 transport rate for an accretionary case (Case 101) 



specific case are used to calculate the distribution of the transport rate, an 

 overall picture of the profile response is obtained. The distribution 

 determined from the initial and final profile surveys will be termed the 

 "equilibrium distribution," although it is recognized that the final profile 

 survey only approximates the actual equilibrium configuration and the time 

 weightings are not equal between cases. 



313. Based on this so-defined equilibrium distribution, a classifica- 

 tion of net transport rate distribution shapes is more easily performed than 

 if consecutive profiles in time are used. This description also indicates 

 where the sand originated which supplied the bar and berm. For example, 

 depending on the wave and sand properties, a bar may be formed from sand 

 supplied from either its shoreward side or its seaward side or from both 

 sides . 



314. From the equilibrium transport rate distributions, three main 

 shapes were identified, although general trends in the distributions often 

 exhibited small perturbations. Figure 36(a-c) illustrates the three principal 



124 



