

rn 





D 















D 



□ 



& 



D 





































D 



D 



b 

 c 



a 



















a 



















& 



33 

















a 





















D 





□ 



□ 

















D 



D 



















□ 







































2 4 J 



STABILITY NUMBER, Ns 



Crest height reduction factor versus the stability 

 number 



l.O- 









1 



□ 



3 

 [ 



3 



°U 



□ 







































c 



3 s 



D 

 C 

 □ 





□ 









































n 



1 









































D 



D 



3 c 









































3 



0.5- 







































4 6 8 10 12 14 



SPECTRAL STABILITY NUMBER. Ns* 



b. Crest height reduction factor versus the spectral 

 stability number 



Figure 5. Stability comparisons for subset 3 



14 



