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METERS 





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TEMPERATURE ( -C J 





TEMPERATURE ("O 





TEMPERATURE 



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Figure 38. Micronurrients Versus Temperature For the Upper 50 Meters. 



VI. DISCUSSION 



1. General. 



It is clear from the data presentation that results of the 1964 

 EDIST0 survey tend to confirm many of the present ideas concerning 

 the gross features of the oceanography of the northern Greenland 

 Sea and adjacent Arctic Ocean. This in itself is important because 

 most of the earlier investigations were based on few data. Data 

 from this survey also point out some new aspects of the oceanography 

 of the northern Greenland Sea and, in some cases, suggest that earlier 

 concepts should be modified. 



2. Currents. 



Dynamic topography charts (Figs. 26 through 35) prepared from 

 the 1964 EDIST0 data give the impression that the western boundary 

 of the East Greenland Current and in some localities its eastern 

 boundary lay farther east than indicated on some previous charts 

 (Fig. 4). In these respects and also in the shape of the southernmost 

 anticyclonic gyre, the dynamic topographies look most like the current 

 scheme presented by Kiilerich (1945) . 



On the chart based on the 200-decibar reference level, two anticyclonic 

 gyres appear to the west of the indicated portion of the East Greenland 

 Current, and indications of such gyres also appear on the charts 

 resulting from the choice of deeper reference levels. Thus, it appears 

 that the dynamic topography charts sometime extended far enough towards 

 Greenland to include the western boundary of the East Greenland Current. 

 It must be admitted that this impression could be erroneous since: 



a. The East Greenland Current could have been divided into more 



33 



