384 



CHARTS, GRAPHS, TABLES, AND COMPUTATIONS 



Table 9.7. 



Variables in the statistical method of refraction prediction 

 for h - hs = 10.0 km 



Table 9.8. 



Variables in the statistical method of refraction prediction 

 for h - ha = 30.0 km 



Table 9.9'. 



Variables in the statistical method of refraction prediction 

 forh - h, = 70.0 km 



