N OV 



.Gage 621 H s = 3.8m h = 7m 

 -Gage 645 H s = 1.7m h = 4m 



Figure A-4. 



0.20 0.25 0.30 0.35 0.40 0.45 

 Frequency (hz) 



Wave spectra during storm of 28 December 1900. Wave spectra from 36-, 

 7-, 4-, and 2-meter depths are plotted with the predicted value of E m (f) 

 for depths of 7 meters or less. The value of E appears to be an esti- 

 mate for parts of the spectrum with frequencies less than 2f , where 

 f is the peak of the spectrum. Above 2f the value often tends to be 

 an underestimate because the spectral values are related to harmonics of 

 the dominant wave. However, the differences tend to be small. The wave 

 direction 9 at 36-meter depth is plotted by frequency. 



19 



