a> 



> 



CU 3 



00 

 CD 



Midstorm 



Water Level 

 Wave Height 



Figure 86. Wave height and water level for beach fill simulations 



storm was imposed which lasted 3 days, during which the wave height increased 

 sinusoidally up to a maximum of 2.5 m. Simultaneously, a storm surge occurred 

 with a Gaussian shape, raising the water level to a maximum of 3 m above the 

 still -water level. The wave period varied sinusoidally between 8 and 12 sec 

 during the storm with the maximum period occurring at the same time as the 

 maximum wave height. After the storm, accretionary conditions were imposed 

 with long-period swell of height 0.5 ra and period 16 sec, producing beach 

 recovery. 



530. Original profile . At first, model simulations were performed 

 without adding fill for the two grain sizes 0.25 and 0.40 mm. The initial 

 profile consisted of two linear slopes to a depth of 0.5 m, joining to an 

 equilibrium profile shape (Equation 1). Figure 87(a and b) shows the beach 

 profiles at selected times during the simulated time period; just before the 

 storm (Day 21, prestorm) , during the storm (middle of Day 22, midstorm), after 

 the storm (Day 23, poststorm) , and at the end of the simulation period (Day 

 30 , recovery) . 



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