Frfjiicricjr 

 (MHO 



Bui.ncit Arc* 



K«li<Stnri>! Aft* 



Rur«l .*.!«» 



X> u (<JB) 



/)j(dii) 



P U W) 



O/iiB) 



0,,(dB) 



fl/tUB) 



25 

 05 



to 



15 

 JO 



100 

 200 

 48 

 102 

 2500 



I.I 



126 

 98 

 11.9 



no 



109 

 105 

 13.1 

 119 

 6.7 



61 

 80 

 40 

 95 

 62 

 42 

 7.6 

 1.1 

 57 

 32 



93 

 123 

 100 

 10 1 



too 



84 

 10 6 

 12.3 

 12.5 



6.9 



50 

 49 

 4 4 

 6.2 

 57 

 5.0 

 65 

 71 



41 



IS 



10 6 

 125 

 92 



tot 



5.9 

 90 

 7.8 

 JJ 

 105 

 3.5 



28 



40 

 66 

 J.I 

 7J 

 40 

 J.J 

 t.8 

 3.1 

 08 



Table 1. Upper, D , and lower D„, decile values in dB of 

 surface noise power variability within an hour at a given 

 location. 



24 



20 



ec 16 

 t- 

 <Z 

 § >2 



z 

 ~ 8 



u5 



4 



















BOEING FIELD 

 H = I5FT 



— 1 



VORr" 



DAY 









VI 



£RTI< 



:alf 



>0LARIZA- 



riON 



y 



^ 







m 



C\ 













V 



/ 











—^ 













z 



--^ 



^-SUND/ 



*Y 





































00 02 04 06 03 10 12 14 

 LOCAL TIME 



16 16 20 22 24 



Figure 3. Diurnal variation of 73 MHz surface noise power 

 measured at Boeing Field, Seattle for a workday and a 

 Sunday (Buehler et al. , 1968) . 



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