ILLUSTRATIONS 



1 Thermistor chain hoist on USS MARYSVILLE ...page 8 



2 Track of USS MARYSVILLE on cruise 2 ... 9 



3 Isotherm data from leg one of cruise 2 (250-550 feet) . . . 11 



4 Isotherm data from leg two of cruise 2 (100-300 feet) . . .13 



5 Isotherm data from leg two of cruise 2 (400-600 feet) . . . 14 



6 Isotherm data from leg three of cruise 2 (100-300 feet) ... 16 



7 Isotherm data from leg three of cruise 2 (450 and 650 feet) . . . 17 



8 Frequency distribution of differences in depth between half- 

 minute or 304 ft spaced readings of 9°C isotherm, leg one, 

 cruise 2 20 



9 Frequency distribution of differences in depth between half- 

 minute or 304 ft spaced readings of 14°C and 9°C isotherm, 

 leg two, cruise 2 . . . 21 



10 Frequency distribution of differences in depth between half- 

 minute or 304 ft spaced readings of 16 °C and 9°C isotherm, 

 leg three, cruise 2 . . . 22 



11 Approximate slopes of isothermal surfaces measured in deep 

 and shallow water ... 23 



12 Autocorrelation computed from successive half-minute 

 interval readings of the depth of 9°C isotherm, leg one, 

 cruise 2 . . . 25 



13 Autocorrelation computed from successive half-minute 

 interval readings of the depth of 14°C isotherm, leg two, 

 cruise 2 . . . 25 



14 Autocorrelation computed from successive half-minute 

 interval readings of the depth of 9°C isotherm, leg two, 

 cruise 2 . . . 26 



15 Autocorrelation computed from successive half-minute 

 interval readings of the depth of 16 °C isotherm, leg three, 

 cruise 2 . . . 26 



16 Autocorrelation computed from successive half-minute 

 interval readings of the depth of 9°C isotherm, leg three, 

 cruise 2 . . . 27 



17 Power spectrum computed from successive half-minute 

 interval readings of depth of 9°C isotherm, leg one, 

 cruise 2 . . . 30 



18 Power spectrum computed from successive half-minute 

 interval readings of depth of 9°C isotherm, leg two, 

 cruise 2 . . . 31 



