ATIS Telecom Glossary
Friday, October 31, 2014

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surface refractivity
The refractive index of the Earth's atmosphere, calculated from observations of pressure, temperature, and humidity at the surface of the Earth. Note: The surface refractivity gradient is the difference in refractive index between the surface and a given altitude, such as between the surface and 1000 m.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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