112 A WORLD ATLAS OF ATMOSPHERIC RADIO REFRACTIVITY 





M313MOTIH «3d SilNH-N 



y3l3rt0"lix d3d SlINn-N 



T3 



s 

 O 



o 



H 



ss 



O 



U313H03IM «3d SUNn-M 



a313H03ln M3d SHNH-N 



