CELL CIRCULATION {'=^^,'^0°) 



current 



ASYMMETRIC CIRCULATION (SMALL ^b) 



.] / \ rip current 



breaker zone 



^ longshore 



current 



LONGSHORE NON-CIRCULATORY PATTERN (LARGE "^b) 



breaker zone 



. longshore 

 current 



Figure 6. Wave-induced nearshore currents as determined by breaker angle. Cell 

 circulation pattern with well-developed rip currents occurs when the 

 breaker angle is close to zero. Asymmetric circulation with longshore 

 currents feeds rip currents when breaker angle is small. A longshore 

 non-circulatory pattern occurs with an oblique wave approach and large 

 breaker angle 



Chapter 2 Relevant Processes and Factors 



19 



