CONTENTS 

 FIGURES — Continued 



Page 



5 Time history of significant wave height and peak spectral period, Columbia Light 23 



6 Time history of significant wave height and peak spectral period. South Pass 24 



7 Part of NOAA daily surface weather map 25 



8 Surface weather map covering northern Pacific Ocean 26 



9 Surface weather map covering eastern Pacific Ocean 26 



10 Phase versus frequency from FFT analysis of artificial signal composed of three sinusoidal waves 32 



11 Variance as a function of number of constituents from MRS analysis, South Haven 35 



12 Variance as a function of number of constituents from MRS analysis, Columbia Light 35 



13 Amplitude versus frequency of constituents from MRS analysis of artificial signal with nine 



sinusoidal components 36 



14 Phase versus frequency of constituents in Figure 13 37 



15 Spectra computed from time series and squared time series, Columbia Light 41 



16 Energy versus frequency for South Haven, 1,024-second record starting at 1700 e.s.t 42 



17 Energy versus frequency for South Haven, 1,024-second record starting at 1720 e.s.t 42 



18 Energy versus frequency for South Haven, 1,024-second record starting at 1740 e.s.t 43 



19 Energy versus frequency for Columbia Light, MRS analysis of 512-second record starting 



at 1300 P.d.t., and FFT analysis of 1,024-second record starting at 1300 P.d.t 43 



20 Energy versus frequency for Columbia Light, MRS analysis of 512-second record starting 



at 1308.5 P.d.t., and FFT analysis of 1,024-second record starting at 1300 P.d.t 44 



21 Energy versus frequency for Columbia Light, MRS analysis of 512-second record starting 



at 1408.5 P.d.t., and FFT analysis of 1,024-second record starting at 1400 P.d.t 44 



22 Energy versus frequency for Columbia Light, MRS analysis of 512-second record starting 



at 1500 P.d.t., and FFT analysis of 1,024-second record starting at 1500 P.d.t 45 



23 Energy versus frequency for Columbia Light, MRS analysis of 512-second record starting 



at 1508.5 P.d.t., and FFT analysis of 1,024-second record starting at 1500 P.d.t 45 



24 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1500 c.d.t., 



and FFT analysis of 819-second record starting at 1503.3 c.d.t 46 



25 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1510 c.d.t., 



and FFT analysis of 819-second record starting at 1503.3 c.d.t 46 



26 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1520 c.d.t., 



and FFT analysis of 819-second record starting at 1517 c.d.t 47 



27 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1530 c.d.t., 



and FFT analysis of 819-second record starting at 1530.7 c.d.t 47 



28 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1540 c.d.t., 



and FFT analysis of 819-second record starting at 1544.4 c.d.t 48 



29 Energy versus frequency for South Pass, MRS analysis of 600-second record starting at 1550 c.d.t., 



and FFT analysis of 819-second record starting at 1544.4 c.d.t 48 



30 Phase change with frequency in successive MRS analyses at Columbia Light 50 



31 Ratio of highest wave height to significant height versus grouping parameter at Columbia Light 54 



32 Ratio of second highest wave height to significant height versus grouping parameter at 



Columbia Light 54 



33 Ratio of third highest wave height to significant height versus grouping parameter at 



Columbia Light 55 



