1.0- 



B^Tg — 



C 



3 ditfg 3 



a 



»-* 



n 



D ° D 



n 

 n 









U.9 







n a 

 a « 









u.8-j 







c 









0.7- 















0.6- 















O.b- 



\ 





I 









2 4 ( 



STABILITY NUMBER, Ns 



a. Crest height reduction factor versus the stability 



number 



1.0- 





1 



b-Dg, 



TBJ-EI 



5^ 

 % 



acq 



3* 



e — i 



a 



3 



D 



D 



3 



















0.9 - 



















P 



3 



3 a 







































a 



















0.7 - 







































0.6 J 

 0.5 -J 































i ' 



1 







6 8 10 12 14 



SPECTRAL STABILITY NUMBER, Ns. 



b. Crest height reduction factor versus the spectral 

 stability number 



Figure 7. Stability comparisons for subset 7 



16 



