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CHARTS, GRAPHS, TABLES, AND COMPUTATIONS 



Tables 9.1 through 9.9 are tables of coefficients, a and h, standard errors of 

 estimate, SE, and correlation coefficients, r, for use in the statistical method 

 of refraction prediction. 



Table 9.1. 



Variables in the statistical method of refraction prediction 

 for h — hs = 0.1 km 



Table 9.2. 



Variables in the statistical method of refraction prediction 

 for h - ha = 0.2 km 



Table 9.3. Variables in the statistical method of refraction prediction 

 for h — ha = 0.5 km 



