

E 



D 



D 



3 D 























tl □ 









0.9- 















n 















□ 



a 



a 



a 



D 



□ 





8- 















D 



















a 



□ 



















D 









0.7- 

















□ 























a 



















D 

 D 



a 

 n 























5- 































1 





2 4 ( 



STABILITY NUMBER, Ns 



a. Crest height reduction factor versus the stability 

 number 











C 



P 





□ 



% 



D 



D 



] 











































































^ 





D 



C 



1 





































D 







































J 







































C 







3 







































D 



D 

 1 





0.6- 





































□ 



0.5- 







































6 8 10 12 14 



SPECTRAL STABILITY NUMBER, Ns* 



b. Crest height reduction factor versus the spectral 

 stability number 



Figure 4. Stability comparisons for subset 1 



13 



