+ + 



+ 

 + 







• + + + + + + + 



FIRST SURVEY SIGMA- 1 SURFACE 26.8 



+ + + + + -t + + - 



+ 

 + 



53" 



52' 



51' 



50" 



49" 



48° 



47' 



46" 



Figure 16A. Sigma-t level, 26.8, showing isotherm contours and signia-t surface intersections with the iiottoni and 

 sea surface. Based on data collected during the first survey of Ice Patrol 1965. 



26 



