Om 100 200 



G H 



600 [too 800 900 1000 1100 1200 1300 1400 1500 1600m 



sec 



\ 

 I- 21 seel 



Fig. 8. Profiles of wave patterns, showing the variations 

 of dominant waves with space and time at a wind 

 velocity of 16 m/sec, 



at B only as an iinimportant elevation, whereas the following crest 

 ap has risen to a wave of considerable height. We find similar 

 rapid variations at other places too, when examining the changing 

 wave patterns with regard to space and time, for example, between 

 G and H at a distance of 1400 m. This rapid decay on the one end 



31 



