Table 3 
Wave Statistics for Gage 630 
1991 1980-1991 
Height Period Height Period 
Std. Std. Std. Std. 
Mean Dev. Extreme Mean Dev. Number Mean Dev. Extreme Mean Dev. Number 
Month _m om __ mi _ Date _sec sec Obs. _m _m -_omi _ Date _sec _sec _Obs._ 
Jan ab 8) 0.7 3.2 9 8.0 a5) 61 1.2 0.7 4.5 1983 8.1 2.7 1255 
Feb 1.4 0.7 2.8 23 Uo) 1.7 25 2 0.7 5},.ah 1987 8.4 2.6 1146 
Mar TZ OPTS. 7.54 30 9.2 2.4 118 eA Wa 7/ 4.7 1983 8.7 2.6 1358 
Apr 1.0 0.6 3.5 20 7.9 1.8 120 1.0 0.6 5.0 1988 8.6 2.6 1327 
May 0.8 0.5 2.6 19 7.8 2.9 122 0.9 0.5 3.3 1986 8.1 2.5 1351 
Jun 0.9 0.5 2.7 23 8.4 1.9 106 0.8 0.4 Aad 1991 7.8 2.2 1244 
Jul 0.7 0.2 1.3 30 7.8 2.1 116 0.7 0.3 2.1 1985 8.1 2.4 1280 
Aug 0.8 O.5 3.5 19 8.9 25) 123 0.8 O.5 3.6 1981 Ber 58) 1303 
Sep shoal 0.5 2.6 1 8.1 1.7 119 1.1 0.6 6.1 1985 8.6 2.6 1310 
Oct 1.4 1.0 5.4 ejal 9.7, 3.4 122 1.3 0.7 5.4 1991 8.8 2.8 1361 
Nov Al, a 0.9 4.6 9 8.2 2.9 118 1.1 0.7 4.6 1991 7.9 2.8 1155 
Dec 1.0 0.5 2i9) 19 7.5 2.6 41 1.2 0.8 5.6 1980 8.2 2.9 1108 
Annual abel 0.6 5.4 Oct 8.3 2.6 1191 1.0 0.6 6.1 Sep 1985 8.3 2.6 15198 
42. Annual joint distributions of wave height versus wave period for 
Gage 630 are presented for 1991 in Table 4, and for all years combined in 
Table 5. Similar distributions for the other gages are included in Appen— 
dixes B-E. 
43. Annual distributions of wave directions (relative to true north) 
based on daily observations of direction at the seaward end of the pier and 
height from Gage 625 (or Gage 111 when data for Gage 625 were unavailable) are 
shown in Figure 13. Monthly wave "roses" for 1991 and all years combined are 
presented in Figures 14 and 15, respectively. 
30 
