5- 



X 



EXTREME 































X 





O 



MEAN 





























4- 



D 



+ 1 STANDARD 

 DEVIATION 













X 









X 



X 









X 







X 











X 





X 









- 3- 



1- 

 X 



a 



¥ 2- 



X 



X X 



X 



X 







X 



X 







X 





X 





n 











J . 





X 



j 





,, 



(!) 















1 





I- 



4 



**4* 



A 



A 



i 



() 







() 



k 



1 



( 



(1 



!) 



1 



() 



0- 



— 1 — 



-1 — 1 — 1 — 1 — 



— r— 



— p — 





















1 



__, 



fl S Q 



Tire 



a. 1981 



D J-M R-J J-S 0-0 81 80 



X 



O 



EXTREME 



MEAN 



+ 1 STANDARD 

 DEVIATION 



(Si & 



X X 



® 



J F M R n J J fl S N J-n R-J J-S 0-D 80-81 



TINE 



b. 1980 plus 1981 



Figure B16. Monthly, seasonal, and annual extreme, mean, and 

 standard deviation of wave height for gage 620 



B68 



