250 



In the twenty cases, there was no correlation between 

 the value of the coefficient and either the time of travel 

 or the distance travelled. This is not necessarily contrary 

 to the known variation in the value of A with the scale of 

 the phenomenon, but is simply means that within the limits of 

 accuracy of these computations for A, and within the time or 

 distance scales here involved, no correlation was apparent. 



Discussion and Conclusions 



The circulation of water within Santa Monica Bay is 

 maintained by a combination of many forces. Among them, 

 not necessarily in order of their importance, are these: 



1. General coastal circulation 



2. Winds 



3. Tides 



4. Waves 



5. Local thermal conditions 



The influence of general coastal circulation certainly 

 is felt within the bay, either as a general northerly or 

 southerly current or perhaps as an eddy, the inshore portion 

 of which may affect the direction and velocity of currents 

 within a few miles of the beaches. 



Winds can establish currents either by direct frictional 

 drag or indirectly by setting up density currents due to mass 

 transport of less dense surface water away from, or toward, 

 the shore. Rotary currents in deeper water are associated with 

 tides. Those closer to shore are oscillating currents, moving 

 in and out of the bay or up and down the shore, chamging direc- 

 tion with each ebb and flow. 



