EXPONENTIAL MODEL 



75 



C/) 

 < 

 < 



1.5 



1.4 



1.2 



^ 1.0 



0.9 



08 



0.7 



0.6 



20 30 40 50 60 70 80 90 



-AN 



Figure 3.13. Comparison of t versus AN as obtained from CRPL reference atmos- 

 pheres — 1958 and 6-year mean radiosonde data for do = 15° h — hs = 70 km. 



