190 



MARION AND GENERAL GREENE EXPEDITIONS 



(h) that even if vertical convection were established the average 

 salinity of the water is so low as to require an impossibly low 

 temperature to become a bottom-water constituent as defined by 

 figure 146. In figure 150 is shown the temperature and salinity 

 distribution at Davis Strait leading to these conclusions. A longi- 



O O o 



29.90 



o o 



3041 



2936 



3479/34.78 



FiGUEE 150. — Temperature and salinity profile across Davis Strait just soutli of Davis Strait 



Ridge August 4-18, 1928. 



tudinal section, on which have been plotted maximum temperatures 

 for vertical convection of the superposed water column, is shown in 

 figure 151. Here again the average salinity lines of 34.81 and 

 34.91%o have been drawn. All of the section from Marion station 

 984 just south of Davis Strait Ridge to General Greene station 1936 

 in the Atlantic Current border falls within the salinity limits of 



