Figure 6. Effect of shearing current on direction of wave energy (solid 

 curves) and wave crests (perpendicular to dashed curves). 

 Angles in degrees indicate the directions of the curves as 

 they pass through the origin, measured clockwise from north. 

 Shear velocity directed north or south. The changed direc- 

 tion varies with magnitude of shear and equals the direction 

 of the curve where intercepted by the line of the velocity 

 vector. Adapted from Kenyon (1971). 



34 



