CONTENTS 

 FIGURES — Continued 



Page 



34 Ratio of highest wave height to significant height versus grouping parameter at South Pass 55 



35 Ratio of second highest wave height to significant height versus grouping parameter at South Pass.... 56 



36 Ratio of third highest wave height to significant height versus grouping parameter at South Pass 56 



37 Amplitude versus frequency from MRS analysis of low frequencies in squared time series at 



Columbia Light 57 



38 Phase versus frequency from MRS analysis of low frequencies in squared time series at 



Columbia Light 57 



39 Comparison of Columbia Light field data time series with time series synthesized from 



low-frequency MRS constituents 58 



40 Comparison of modulation period estimated from LVTS and from wave steepness 61 



41 Diraensionless modulation frequency versus wave steepness 62 



42 Average dimensionless modulation frequency versus wave steepness 62 



43 Comparison of modulation period estimated from spacing between MRS constituents and from 



wave steepness 64 



44 Comparison of phase for frequency-matched high-amplitude MRS constituents from different records 66 



45 Comparison of phase for all frequency-matched MRS constituents from three Columbia Light records 67 



46 Comparison of phase for all frequency-matched MRS constituents from two South Haven records 67 



47 Comparison of phase for frequency-matched MRS constituents from three South Pass records 68 



48 Distribution of frequency spacing between MRS constituents 69 



