O 



I— 



< 

 > 



a: 



O 

 glO 



a: 



3 



z 

 



"T 1 1 I 1 1 1 r 



5- 



— 



12 JUNE 1958 

 2 HR 12.5 MIN 



24 JUNE 1958 

 4 HR 40.5 MIN 



25 JUNE 1958 

 2 HR 55 MIN 



26 JUNE 1958 

 3 HR 27 MIN 



8 JULY 1958 

 1 HR 19 MIN 



9 JULY 1958 

 1 HR 36 MIN 



G 



23 JULY 1958 

 1 HR 14 MIN 



24 JULY 1958 

 1 HR 51.5 MIN 



25 JULY 1958 

 2 HR 25.5 MIN 



6 AUGUST 1958 

 1 HR 45.5 MIN 



7 AUGUST 1958 

 2 HR 26 MIN 



14 17 20 23 26 29 32 35 38 



WAVE PERIOD (MINUTES) 



8 AUGUST 1958 

 2 HR 11.5 MIN 



Figure 17. Frequency distribution of all internal wave periods over 2 seconds (light and 

 dark) and internal wave periods with associated slicks (dark shading) for each of the 12 days 

 during which observations were made. 



23 



