Variable Water Level and Wave Height 

 (amplitude Im? H = l-3m; T = 8sec) 



Figure 75. Simulation with varying water level and wave height 



Multiple Barred Profiles 



473. If the water level varies simultaneously with the wave height, 

 waves may reform as they pass over the trough. The reformed waves will break 

 further inshore and create another bar, thus producing a multiple barred 

 profile. The shape and properties of the net transport rate in zones of 

 broken waves, seaward of the break point, and on the foreshore were inves- 

 tigated in Part V, whereas in zones of wave reformation less empirical 

 information was available for analysis and deduction. However, some conclu- 

 sions of a qualitative nature can be made from observations of transport rate 

 distributions obtained from the LWT studies. 



474. Formation of a second bar inshore is recognized in the transport 

 rate distribution as a local minimum, with monotonically decreasing transport 

 rates seaward and shoreward of this point. Since calculated net transport 



199 



