NORTH LATITUDE 



SOO - 



mo 



mo 



3000 



4000 L 



Figure 153. Oceanographic Section from Faeroe Islands tlirougii the Greenland Sea 

 and Arctic Basin. 



3. In the Arctic Basic proper the deep Greenland water evidently moves in the same direction 

 as the intermediate Atlantic water (although considerably slower), describing a closed circulation 

 around the Pole. 



In its course around the Pole this water is partly heated by the internal heat of the earth from 

 below and partly by the heat of the Atlantic water from above and it is cooled by the new entry of 

 water from Greenland Sea. 



There is as yet little data at our disposal which would refute or would substantially supple- 

 ment these conclusions of Nansen. We may only point out that the absence of diatoms in the silt of 

 the deep part of the Arctic Basin, which has already been noted above, likewise testifies to the fact 

 that the arctic deep water is actually reprocessed Atlantic water. 



Figure 154 shows (according to Nansen) an oceanographic section extending along the axis of 

 the Spitzbergen current. Here may be seen not only the distribution of deep water in the Greenland 

 Sea but also the diagram of penetration of warm Atlantic water into the Arctic Basin. 



417 



