400 



350" 



300' 



400 



450 



550 600 



700 



500 



1 T 



Depth (m) of 15°C 

 POLYMODE Region 

 December 10-22. 1977. 



- 34 



- 33 



- 32 



- 31 



(' 



600 



i r 



35 



- 30 



-29 



- 28 



- 27 



26 



73 72 71 70 69 68 67 



Figure 18. — Density data chart of NOAA's National Weather Service for POLYMODE Region. 



28 



