1000 



J I I I I I I I I I L 



22° 



24° 



26° 



28° 



30° 



J I I I L 



32° 34° 36° 



NORTH LATITUDE 



38° 



40° 



42° 



44° 



Figure 2 3. --Vertical section of sigma-t along 160 W. longitude; Charles 

 H. Gilbert cruise 17, stations 1-12, September-November 1954, Contour 

 interval 0.2. Points indicate observed values. 



26 



