40r 



20 - 











X Sq 



uored h 



mplitudes, MRS Anolysis 



Bond 



Spectrum, FFT Analysis 



^— efp^ 







1 

 / 

 / 











/ 

 / 















/ 



— -'' 1 1 





±. 



%\ 



,!f! ll , 



L 





1 1 1 J 





 0.12 



0.14 



016 Ql 



Frequency (Hz) 



0.20 



Figure 18. Energy versus frequency for South Haven, 1,024-second record 

 starting at 1740 e.s.t. Oy = 66.14 centimeters, f = 0.1494 

 hertz, e = 0.119, ef = 0.0178 hertz. 



40r 



20 



ef, 



..- — -\ 

 \ 



V I 

 I 



X Squored Amplitudes, MRS Anolysis 

 Bond Spectrum, FFT Anolysis 



ll 'y I f I 



0.06 



0.08 



0.10 

 Frequency (Hz) 



012 



0.14 



Figure 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. Oy = 75.25 centi- 

 meters, f = 0.0635 hertz, e = 0.030, ef = 0.0019 hertz. 



43 



