isothermal surface slopes, and to compute autocorrelations and 

 power spectra. From the results obtained it was concluded that 

 many significant waves are of very long period. These analyses 

 further indicated that there is probably a shoreward movement in 

 the dominant waves. 



The records of circular tows showed that the thermal struc- 

 ture is very complex. The circles were too small to clearly dem- 

 onstrate significant motion in any direction. The data did reveal 

 that wave crests and troughs of a generally similar type were 

 crossed in all directions of tow. Thus, the isothermal surfaces 

 are very complex and vary in all directions. 



43 



