TABLE 1 

 MEAN TEMPERATURE DISTRIBUTION FACTORS AT i|00 FEET FOR OWS CHARLIE-ECHO 



Factor 



CHARLIE 



ECHO 



Accepted Factor 



4> = 58°K 

 (Area F, Figiire 1) 



. - t 



-7.52 

 is;), 



-7.36 

 ),), 



S| = -2.U 

 §2 = -^.78 



2.1 52! sin 



kkl sin (0-35.5°) 



-2.22 

 -2.86 



^ ~ cos <^ 



""' sin c^ 

 ^2- sin 4> 



'^\ '400 

 °'2'400 





-4.21 







-5.36 





88.0° 





27.0° 





lioi^ 



102. 2"" 



96. ko 





26.0° 







131.0° 







356.0° 





1 170.0° 1 

 136.3^ 





130.7° 







356.0° 





Factors for latitude 5° N, area F, are also given. Fart of the latter 

 area appears to lie in vater similar to that of the CHARLIE-ECHO area, and 

 another part appears to lie in water similar to that of the DELTA-HOTEL 

 area, so that area F lies approximately in a transition zone. Therefore, 

 properties of the temperature distribution at 58°N may approach those of 

 either area. Data "being very limited, factors for 58 N could not be used 

 for determination of accepted values and are included in table 1 only for 

 interpretation of the dubious factors of the CHARLIE-ECHO area. 



The accepted factors (column k, table l) are based on values for OWS 

 CHARLIE and ECHO, X is a mean of two stations, S| is very large for 

 CHARLIE because of extremely low frequency response in the smoothing pro- 

 cess. The S| value for latitude 58% agrees closely with the S| value 

 for ECHO, This agreement favored acceptance of the ECHO value for the 

 general equation without modification, because the S| factor for CHARLIE 

 does not appear reliable. 



The phase angles have been derived directly from expansion of the 

 ij-OO-foot curve. Values of these angles were made positive, and by sim- 

 ple manipijlations the functions 2.1 </> sin <^ and UUl sin ( <;fc -35*5 ) 



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