CONTENTS 



FIGURES--Continued 



Page 



11 Comparison between predicted and experimental transmission, 



T, and reflection coefficient, R 39 



12 Comparison between predicted and experimental transmission 



coefficients 40 



13 Comparison between predicted and experimental reflection 



coefficients 40 



14 Definition sketch 48 



15 Reflection coefficient, R, of rough impermeable slopes 53 



16 Runup, R , on rough impermeable slopes 55 



17 Slope friction factor, F 



58 



18 Slope roughness boards used in the experimental 



investigation "^ 



19 Experimental setup ^3 



20 Wave amplitude variation along constant depth part of the 



flume 66 



21 Wave record showing pronounced second harmonics at a 



node 66 



22 Empirical relationship for the wave friction factor, f . . . . 68 



23 Definition sketch of trapezoidal, multilayered breakwater 



and its hydraulically equivalent rectangular breakwater. ... 83 



24 Horizontal slice of thickness. Ah., of multilayered 



breakwater 84 



25 Breakwater configuration tested by Sollitt and Cross (1972) . . 88 



26 Comparison of predicted and observed reflection and 



transmission coefficient of trapezoidal, multilayered 



breakwater 98 



