Y Shoreline position, m 



YADD Added shoreline width of a beach fill after adjustment of fill to 

 equilibrium, m 



YDB Array holding distances of detached breakwater tips measured from 

 the x-axis, m 



YDIFF Difference in calculated and measured shoreline positions, m 



YG1 Length of groin on left side of cell 1, m 



YGN Length of groin on right side of cell N, m 



YLT Width of littoral zone, m 



YNDG Array holding lengths of nondiffracting groins, measured from the 

 x-axis, m 



Z As a first letter, denotes an angle 



ZCNGA Wave angle change amount; an angle (positive or negative) that can 

 be applied to shift all input wave angles by the specified amount, 

 deg 



ZCNGF Wave angle change factor; a factor that can be applied to the input 

 wave angle which acts to increase or decrease the wave angle range 

 (compress or expand the wave rose) 



E6 



