SYMBOLS AND DEFINITIONS 



a,b empirical coefficients of runup on rough breakwaters 



B cres't width of a breakwater 



C an empirical wave transmission by overtopping coefficient 



C]^,C2,C3 empirical smooth slope runup coefficients 



d or dg water depth at the toe of the structure 



F breakwater freeboard = h - dg 



g acceleration due to gravity 



H or H^ incident wave height; use the mean wave height for irregular waves 



H^ transmitted wave height 



h structure height 



Kjq wave transmission by overtopping coefficient 



L wavelength 



Lq deepwater wavelength. 



R wave runup 



T wave period; use the period of peak energy density for irregular waves 



6 breakwater seaward face front slope angle 



C the surf similarity parameter = tan O/ZH/Lq 



