Frequency-Direction Spectral Plots: Event Y 



0100. 10 Jan 91 



Hmo = 1.75 m 1300. 10 Jan 91 0100. 11 Jan 91 1000. 11 Jan 91 





**n^ Hmo — 1.62 m Hmo — 161 m Hmo — 1.66 m 



9 (deg) 

 1600, 11 Jan 91 1900, 11 Jan 91 2200. 11 Jan 91 



Hmo = 1.77 m Hmo = 2.16 m Hmo = 2.35 m 



0100, 12 Jan 91 

 Hmo = 2.38 m 



0400. 12 Jan 91 

 Hmo - 2.07 m 



1300, 12 Jan 91 

 Hmo •= 1.45 m 



0100. 13 Jan 91 

 Hmo - 1.48 m 



1300, 13 Jan 91 

 Hmo — 1.16 m 



Appendix A Event Time Series and Spectral Sequences 



A 87 



