Figure 45. Autocorrelation of zero up-crossing wave heights for trans- 

 mitted and incident wave records for a permeable breakwater. 



iJ.4 





/ 







H 



^ 



T 



2.0 



/ 



8 4 17 4 







13 34 29 13 



BWI6 



1.6 



4 ITlig 



17 



ds/h = 0.76 





21 31 9 W 29 25 8 





1.2 



17 31 39(5 



21 17 4 



4 





26 6 1 : 



•9 21 25 4 



0.8 



4 34 26 (0 



8 8 13 



4 4 





21 26 5 yJs 



25 25 



4 4 



0.4 

 n 



26 26 2/13 '.3 4 



4 4B--€ 4 4 



4 



t 



I4JCIDENT 

 7806191239 



1 1 



2.4 



2 - 



1.2 



0.8 - 



0.4 





13 le 19 



19 45^6 26 6 



6 13 58 1 4 ja 26 32 6 13 



6 6 40 26B2 32 19 6 6 



13 7 19 3A6 26 6 13 



y^ 



13 13 19 6,^^13 39 6 



6 26 6/19 13 6 6 



13 6^3 13 TRflNSniTTED 

 / 7806191239 



Ayiz 6 

 ^ \ 1 1 1 1 



0.4 



0.8 1.2 

 T/Tp 



1.6 



20 



0.4 



0.8 1.2 

 T/Tp 



1.6 



2.0 



Figure 46. Sample joint distributions of wave height and period for 

 an irregular wave condition and a permeable breakwater. 



57 



