100 200 300 400 500 600 700 800 900 1000 

 DISTANCE, M 



Figure 77. Distribution of grain size across profile line 188 

 (from Howd and Birkemeier 1987) 



the importance of choosing events which show similar profile response along- 

 shore. Therefore, in the present study time intervals were selected during 

 which adjacent profile lines displayed similar development. 



Data set 



488. Survey line 188 (Howd and Birkemeier 1987) located southeast of 

 the FRF pier was selected for profile simulation. The survey line is beyond 

 the influence of the pier and located in an area of characterized by nearly 

 straight and parallel bottom contours. To minimize the effect of longshore 

 variability in profile change in selecting storm events for simulation, the 

 response of line 188 was compared with line 190, located less than 100 m away. 

 Five events were selected for which profile evolution was similar for the two 

 survey lines, making it reasonable to believe that beach changes were predomi- 

 nantly two-dimensional during the storm events. However, for most events 

 used, mass was not rigorously conserved in comparison of consecutive surveys, 

 indicating that longshore effects influenced profile response to some degree. 



205 



