25.0 18.0 



Period { s ) 



10.0 



80 



40 



30-4 



20 



10_ 



50_ 



40 



30_ 



20_ 



I0_ 



S0_| 



40 



30 



20 



10_l 



S0_ 

 40_ 

 30_ 

 20_ 

 10_ 



S0_ 



40- 



30 



20 



10 



JiILJj.ii .J... 



.JiLiiiiaLli,, HI..., 



,JiiilJi.iL.ll., .j... 



l.lliil.hXil.,nli.l.ji 



LuLlL 



"■■•-'- I" ■-"■ 



r — I — r 



1 i — r 



1 — \ — 1 



1 — r~r 



"T^n — i — \ — r 



0.06 



0.10 0.14 



Frequency ( Hz ) 



0,18 



Figure E-18. Significant wave height 69.3 centimeters (2.3 feet), 

 24 June 1970, 1206 hours. 



97 



