periods (Scheffner et al. 1999). Results for the four sites in this study are given
in Table 7. Information includes the five highest significant wave heights
producing storm-maximum water levels, peak wave period for the highest
significant height, and water levels at the shoreline for various return periods.
Water levels include storm surge, ponding on the reef, and nearshore wave setup.
Table 7
Extreme Wave and Water Levels
Return Period Water level
1
at Shoreline
Tp for Highest
1
Site
Five Highest, Hs, ft
Wave, sec
5 yr
10 yr
25 yr
50 yr
Anasosopo
32.4, 19.3, 17.8, 17.8, 17.3
12
3.0
4.1
5.6
7.3
Ava
32.1, 15.4, 15.0, 13.5, 13.5
12
2.4
3.5
5.2
7.3
Leloaloa
7.1, 3.1, 2.7, 2.7, 2.7
12
1.1
1.6
2.1
2.9
Anva
3.2, 2.2, 2.1, 2.0, 1.9
12
1.0
1.5
1.8
2.2
1
To convert feet to meters, multiply by 0.3048.
28
Chapter 4 Harbor Response to Wind Waves and Swell
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