APPENDIX B: WAVE DATA 



The wave data are summarized in the following forms: 



i- Gage histories. Table Bl includes information about the gage, 

 gage installation, and major interruptions in the data collec- 

 tion. Short interruptions in the operational status of the gage 

 are not mentioned. 



b. Time histories . All significant wave height and peak spectral 



wave period values are plotted as a function of the time through- 

 out the year (see Figures Bl , B4, B7, BIO, and B13) . So that 

 the sequence of the data can be followed easily, solid lines 

 connect consecutive data points for times when there is a gap 

 smaller than 24 hours between observations. 



£• Annual, seasonal, and monthly maxima, mean, and standard 



deviations of significant height and peak period. Mean signifi- 

 cant wave height and standard deviation, mean peak wave period 

 and standard deviation, and the extreme significant heights are 

 listed in Tables B2 , B6, BIO, B14, and B18. Also included is 

 the total number of observations obtained; at four observations 

 per day, the maximum number of observations per month (based on 

 a 30-day month) is 120. Frequently during 1980 the backup re- 

 corder was used and only two observations per day were recorded 

 (except during storms and special events), or 60 observations 

 during a 30-day month. 



d. Maxium, mean, and standard deviations of significant height and 

 peak period. The data presented in the tables described above 

 are also graphed (see Figures B2 , B5 , B8 , Bll, and B14) for each 

 month and for the year. The standard deviations are presented 

 as "T" bars originating at the mean value and extending to the 

 mean plus one standard deviation value. The extreme values are 

 plotted above. No extreme period values are presented. 



e. Joint distribution functions of significant height versus peak 

 period. Joint distribution tables are presented for 1980 

 (Tables B3, B7 , Bll, B15, and B19) and for each season (Ta- 

 bles B4, B8, B12, B16, and B21). Each table gives the frequency 

 (in parts per 1000) for which the significant height and peak 

 period were within the specified intervals; these values can be 

 converted to percent by dividing by 10. 



Marginal totals are also included. The row labeled "Total" 

 gives the total numer of observations out of 1000 which fell 

 within each specified peak period interval. The column "Total" 

 gives the number of observations out of 1000 which fell within 

 each specified significant height interval. 



f • Annual and seasonal cumulative distributions of significant 

 wave height. For each gage, annual and seasonal significant 

 wave height distributions are plotted in cumulative form (see 

 Figures B3, B6, B9 , B12, and B15). 



Bl 



