CHARLIE and ECHO were combined as stations without permanent currents, 

 and DELTA and HOTEL were paired as stations lying within permanent cur- 

 rents. This grouping appears to be justified by the latitudinal change 

 of parameter / . The relationship is quite simple. 



X = —i-r- =-7.52 for OWS CHARLIE 

 cos (p 



X = -^^fx- =-7.36 for OVJS ECHO 



X = 



/ 



cos 



COS <p 



(7) 



^=-5.16 for OWS DELTA 

 -5.86 for OVjS HOTEL 



A more elaborate function of latitude covild be devised to arrive at 

 identical values of coefficients X for each group. However, despite 

 deficiencies and limitations of the data from which the time smoothed 

 distributions were obtained, the above values agree sufficiently to per- 

 mit acceptance of a simple cosine function. The mean value of each group 

 was accepted to be a generalized coefficient, X . Parameter /, valid 

 at a given location, could then be replaced by (X cos 0) in the general 

 equation for areas with similar oceanographic regimes (as has been done by 

 combining ocean weather stations). 



A simple sine function of latitude also yields satisfactorily close 

 values of coefficients for at least the exponents of the first harmonics. 



-r 



sinc^ ' ^2"" sin<^ '■' (8) 



In general, mean values of S were accepted for each group of combined 

 stations and for all harmonics. Scattering of S values can be expected to 

 increase with increasing order of harmonics. 



A summary of factors for the CHARLIE-ECHO area is given in table 1. 



11 



