I 

 o 











UPWIND 





2.0 



— 







Xj 



• / 



^SC 



1.5 









o 1 



X / 

 • / 



• / 



® / 



1.0 





• 



a 



® / 



/ o 

 / ^ 



.5 





o 





/ / 



/ 





 -.5 





X 





/^ 





-/ 



.08 .10 .12 .14 .08 



TRUE FREQUENCY (CPS) 



FIGURE 16. EXPONENTIAL GROWTH PARAMETER /3 : MEASUREMENT 

 VERSUS THEORY. CURVE MARKED "M" IS PREDICTED BY 

 MILES (1957) WHILE THE UNE "SC" IS FROM THE EMPIRICAL 

 RELATION OF SNYDER AND COX(1966). 



43 



