end of spring and start of summer and then increasing to the highest values 

 during autumn. Wave periods were less consistent; however, there was a ten- 

 dency for lower mean periods during winter and spring and higher periods dur- 

 ing summer and autumn. 



50. Although the wave height and period distributions for each gage 

 differed, seasonal tendencies were similar to those shown for Gage 625 in Fig- 

 ures 15 and 16. Over 6.2 percent of the waves during October through December 



5.0-! 



4.0- 



3.0- 



O 



CZi 2.0- 



1.0- 



0.0 



JAN-MAR 85 



APR-JUN 85 



JUL-SEP 85 



OCT-DEC 85 



1 — I I I l ll l | 1 — I I I llll| 1 — I I I llll| 1 — I I I MM. 



10" 2 10' 1 10° 10 1 1(f 



PERCENT GREATER THAN INDICATED 



Figure 15. Seasonal wave height distributions for 

 Gage 625, 1985 



exceeded 2 m, 2 percent during January through March, 1.4 percent during April 

 through June, and only 0.56 percent during July through September. Wave peri- 

 ods of 10, 12, and 14 sec or longer tended to occur most frequently during 

 July through December, while periods of 8 sec were measured over 25 percent of 

 the time during January through June. 



51. The distribution of wave directions for the year, based on daily 

 visual observations (Figure 17) , revealed that waves approached the pier from 

 the south side 60 percent of the time. Seasonal distributions of the wave 

 directions indicate approximately an even split between north and south for 

 January through March, while approximately 70 percent of the waves approached 

 from the south during April through September. During October through 



36 



