4600 

 4400 

 4200 

 4000 

 3800 

 3600 



3400 .^ 



E 



3200 ^ 



3000 i2 

 2800 » 



2600 -z 



2400 S- 



2200 " 



2000 



1800 



1600 



1400 



1200 



1000 



800 



600 



400 



200 



10 12 14 16 



Wave period T^ , at end of decay (seconds) 



Figure 3-20. Travel Time of Swell Bosed on to = D/Cg 



22 



3-45 



