The computed currents also agree well with results obtained by 

 the current meters. The 50-decibar surface (Fig. 27) indicates a 

 speed of approximately 22 cm/sec in the area of the current meter 

 array. The histogram in Figure 22 shows that the current meter at 

 55 meters indicated a speed of approximately 22 cm/ sec during most 

 of its operation. 



5. Summary of Water Circulation in the Channel Islands Area . 

 The flow chart presented in Figure 28 was developed from data obtained 

 by drogues, current meters, and dynamic calculations. Surface drogues 

 which travelled in clockwise ellipses and did not show any appreciable 

 displacement in any particular direction were not used in developing 

 this chart. 





1 19* 30' 1 19* 





118*30 







_l 1 . | 1 1 . Ns ^ 



cAnrotNU 



' 1- 





34* 



=>^ 









34* 



LEGEND 





- 



SURFACE (0-25 M*tora). 





- 







- 



— ♦ Dyfwmlei 





" 









SU»SU«f ACE (25-100 M.hm) 











- 



ff^^ Current M»t«n 









33' 

 30" 





"^Dynamic* 





^ 



33' 



30' 





« 





■ ^nJ 1 





i 





33* 



- K »i 6 



; v 



i i i i i i i i i 1 



** 



\ 



33* 





i i i i 



, I 







II9«30" 119* 





IIS*3C 



)* 



FIGURE 28. CIRCULATION PATTERNS FROM DROGUES, CURRENT METERS, 

 AND DYNAMICS - SEPTEMBER AND OCTOBER 1965 



The flow chart suggests an overall counterclockwise elliptical 

 circulation that generally follows the bottom topography. This pattern 

 has been presented in previous literature (For example, Horrer and 

 Revelle, 1956). The flow chart also shows unidirectional flow of 

 surface and subsurface waters with one exception in the area northeast 

 of San Nicolas Island. Here, a small clockwise-moving gyre is formed 



29 



