2.0 



26 27 28 29 30 





o 



5 



£ 



i — i — i — i — i — i — i — i — i i i i i r 



i i i i i i 



36° 38° 40° 



NORTH LATITUDE 



42° 



44° 



46° 



Figure 2. --Smoothed geopotential anomaly of the isobaric surfaces rel- 

 ative to the 1, 000-db. surface along the 180th meridian; Charles H. 

 Gilbert cruise 17, stations 26-31, September-November 1954. Points 

 represent computed values. 



