CONTENTS 



Introduction . . . Page 5 

 Equipment ... 6 

 Observations and Data ... 8 



Procedure ... 8 



Nature of Vertical Oscillations . . . 

 Variability . . . 10 



Differences in Depth Values . . . 10 



Autocorrelation of Depth Values . . . 



Power Spectrum of Depth Values . . 

 Recommendations . . . 23 

 Summary and Conclusions . . . 24 

 References . . . 25 



9 



16 

 . 19 



Appendix A 

 Appendix B 

 Appendix C 



Figures A-1 to A-32 (Differences) ... 29 

 Figures B-1 to B-32 (Autocorrelation) . . . 37 

 Figures C-1 to C-32 (Power Spectrum) . . . 45 



TABLE 



Date, time, and location of temperature data . . . Page 11 



ILLUSTRATIONS 



1 NEL thermistor chain hoist on USS MARYSVILLE ...Page 5 



2 Track of USS MARYSVILLE showing locations 

 of data samples A to P . . . 6 



3 Example of temperature data taken with the thermistor 

 chain between San Diego and Honolulu ... 8 



4 Example of frequency distribution of differences in 

 isotherm depths . . . 14 



