25.0 IS.O 



Period ( s ) 

 10 .0 



so_ 

 to_ 



30 

 20 



lO-J 



SO 

 40_ 

 30 _ 

 20_ 

 10 



50 



40_ 



30_ 



20_ 



10_ 



SO- 

 40 

 30 

 20 _ 



10_ 



50_ 

 40_ 

 30_ 

 20_ 

 10_ 



6.0 



"T" 



■■W.-^i .JL...II ., .... . ^ IL L ■■ H.ljlUH 



Lll,<Ll.l.«U..fc,... 



..M. ..uHi 1. ■ A ■ ih . I. . ■ JLH ,m il II hJli J I UM 



■riUl it.. M.h *■« 



.ii.mni ili~ * in » ■ !>■■ rf|ft.iii. llyliiiWiillnlllj||ii»< iirt Jifa m 



-j.j-^Ai.j..- .. ^■l^J.-iIiJJ.JILIL.jL.l.^ aI 



i.j-.^Ai.j.. - .. — ^. J. ■ .ll.-ili 



1 •^'■-^ -1 1 



■ ■llt.^i-...ii -. Hj - ■■ 



J1.JI. J ■■ BjI J ill ■■ Jill Jhl I li. ■- ■ J .^ 



0.06 



0.10 0.14 



Frequency ( Hz ) 



0.18 



Figure E-9. Significant wave height 85.1 centimeters (2.8 feet), 

 21 April 1970, 2129 hours. 



