

— 1 I 



/ 



/ ' 



= 0.1 



/ 









y 



' 









^^^ y^^ 



— 



- 





/ 



^ 



- 



/// 



yV.r = 1.0 







- 



Mr 



1 1 





1 -J 1 — 



1 \ 



GRAZING ANGLE (DEGREES] 



Figure 24. Comparison of multUayer solid and liquid models. L represents the bottom loss for the 

 hnear and its liquid layer models. The other curves are for a 100 layer solid model with different 

 values of rigidity, r. 



71 



