7.0 
is soso JAN-MAR 82 
Ci rh ||, une emmmn  P APR-JUN 82 
Se PIWLESSER! 82 
—., WOVN=DES ee 
2 ANNUAL 82 
wn 
[9° 
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LJ 
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td 
ac 
2.0 
1.0 
0.0 
lo 10° 10° 10° 
PERCENT GREATER THAN INDICATED 
Figure 14. 1982 annual and seasonal cumulative 
distribution of wave height for gage 625 
79. Mean seasonal wave period values (Figures 12 and 13) varied sim- 
ilarly to the mean wave heights; i.e., during October to December the periods 
were longest, and from July to September they were shortest. Trends in the 
variation of wave period by season are highlighted by Table 9. The excep- 
tionally calm summer was dominated by local winds which produced wave periods 
predominantly shorter than 10 sec, while two storms during October resulted in 
a much larger number of periods 14 sec or longer. 
80. Approximately 50 percent of the daily observations of wave direc- 
tion indicated the primary wave train approached from the south side of the 
pier (i.e. >70 deg) during January to March and October to December, while 72 
Table 9 
Seasonal Wave Period Distributions for 1982 
Period, sec 
Season <6 1-9 10-12 WH 
Jan-Mar 26 32 38 4 
Apr-Jun 14 48 33 5 
Jul-Sep 34 45 19 2 
Cet-Dec 27 24 32 17 
46 
