35 











1 







1 





i 



V 



















PERFECT COR RE LA TION 







30 

















AND PREDICTION LINE ~ 





- 





















■ 



^Sm 





5 25 

 o 



D 



1- 

 c_> 



D 20 



UJ 

 DC 

 a. 



_ 

















■ 

 ■ 





_ 



1 















■ 



s** ■ 









= 15 











"jj 



■ 





■ 









10 







•^ 





• 











LEGEND 





5 



' 



• 





!*• 



1 







i 





g NCE STUDY 

 SAJ STUDY 



1 





R OBSERVED, CM 



Figure 9. R^x predicted, using coefficients from both NCE and SAJ data, 

 versus 1^ observed for NCE and SAJ data 



%E = 



( R max) " ( R max) ( 



100 



(6) 



where the subscripts p and o indicate predicted and observed, respec- 

 tively. The percent error is plotted versus C, , 5 » dg/L- » *V/^p ' 

 H^/dg , r(bar)/dc , and II, and cot 9 in Figure 10a, b, c, d, e, f, g, 

 and h, respectively, where r is the average armor-layer thickness and II 

 is Goda's (1983) nonlinear parameter defined for irregular waves 



H 



II 



mo 



it 



tan h 



-,2nd 

 3/ s 



(7) 



The larger the value of II , the more nonlinear the waves with 



14 



