SURFACE OBSERVATIONS 



1961 



SONIC 



DEPTH 



UNCORRECTED 



MAX. 

 SAMPLE 

 DEPTH 



AIR TEMPERATURE 



OBS 

 OBS 



OBS 



OBS 



0000 

 0000 

 0005 

 0010 

 0010 

 0015 

 0020 

 0020 



SUBSURFACE OBSERVATIONS 



T °c 



20 

 20 

 20 

 20 

 20 

 21 

 21 

 21 



74 

 74 

 74 

 76 

 76 

 75 

 76 

 76 



27 

 27 

 27 

 27 

 27 

 27 

 27 

 27 



