Depth (m) 



40 80 120 160 200 



Distance Offshore (m) 



Fig. 7 Impact of the northeaster event on the Bruun beach fill 



configuration, the model predicts fill material will be transported far 

 offshore by waves in the process of molding the surf zone profile to an 

 equilibrium shape. 



Post-storm : Subaqueous sections of the post-storm profiles are very 

 similar, being reworked by strong breaking wave action to the same equilibrium 

 shape independent of initial profile configuration and type of storm. The 

 shoreline position (0-depth contour, MSL) actually advanced seaward of its 

 pre-storm location, with the material supplied from the normally subaerial 

 portion of the profile that was inundated during the storm surge and high 

 waves. A small bar formed at approximately 5-m depth under the high storm 

 waves, but is not shown here to better display changes near the beach. An 

 important outcome of the predictions is that, under the action of the particu- 

 lar hurricane and northeaster used, resultant profile change was very nearly 

 the same. This demonstrates that use of one storm descriptor, for example, 

 the maximum stage, to estimate shoreline recession or volume of eroded 

 material can produce misleading, even dangerously erroneous results. 



120 



