100 



80 



60 



0) 



Q- 40 



20 



-90" -60" 



-30" 



0" 

 



30" 



60" 



90" 



Figure 7-59. Cumulative curves of relative wave energy with respect to 

 azimuth from the principal wave direction. 



100 



Figure 7-60. Change of maximum directional concentration parameter, S^j^^^ , 

 due to wave refraction in shallow water. 



7-91 



