OBS. NO. 34 



NSRT 



35 36 37 38 39 40 42 43 44 46 48 50 52 53 54 55 63 64 66 67 68 69 



500 



ID 

 Ul 

 U- 



0. 

 UJ 

 Q 



1.000- 



1,500 

 1.500" TEMP. 



500 1,000 1,500 2,000 



GREAT CIRCLE DISTANCE FROM MAKAPUU PT. (NAUTICAL MILES) 



Figure 8. —Temperature-depth section derived from observations taken during the inbound leg (Nov. 28 to Dec. 3, 1965), 

 omitting observations 56-62 giving details of boundary region shown in figure 9. Mixed layer depth is designated by 

 MLD. The near surface reference temperature (NSRT) is in degrees Fahrenheit. Shaded area is the sea floor. Ob- 

 servation 69 (see trace) may have hit rising continental slope at 1,070 ft. (326 m.), indicated by the black dot. 



