8.3. 



8.4. 



8.5. 

 Chapter 9. 



9.1. 

 9.2. 



9.3. 

 9.4. 

 9.5. 

 9.6. 



Comparison of observed atmospheric radio refraction effects with 

 values predicted through the use of surface weather observations __ 



8.3.1. Introduction 



8.3.2. Theory 



8.3.3. The CRPL standard atmospheric radio refractive 



index profile sample 



Comparison with independent data 



Comparison with experimental results 



Discussion of results 



of atmospheric refraction errors in radio height finding. 



Introduction 



Refractive index 



Ray theory 



Use of the effective earth's radius 



Meteorological parameters 



Calculation and correlation of height errors 



Estimation of the average gradient 



Regression analysis 



Height error equations 



Conclusions 



8.3.4 



8.3.5 



8.3.6 

 Correction 



8.4.1 



8.4.2 



8.4.3 



8.4.4 



8.4.5 



8.4.6 



8.4.7 



8.4.8 



8.4.9 



8.4.10. 



References 



Radio-meteorological charts, graphs, tables, and sample com- 

 putations 



Sample computations of atmospheric refraction 



Tables of refraction variables for the exponential reference 



atmosphere 



Ref ractivity tables 



Climatological data of the refractive index for the United States _ . 



Statistical prediction of elevation angle error 



References 



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375 

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