284 Ice in the Sea 



Hemisphere. Thus, for example, it has been shown with sufficient certainty that there 

 is a high positive correlation between the atmospheric pressure pulsations in the North 

 Polar regions and those in the South Polar regions. If this connection is real, certain 

 parallelism would be expected between the variations in ice conditions in the Arctic 

 and in the Antarctic. To test this assumption Wiese has compared 10-year records of 

 ice conditions at the South Orkney Islands from 1903 to 1912 (Mossman, 1923) 

 between March and May, with the area of ice in the Barents Sea between May and 

 August in the same years. The results are given in Table 109 and show the existence 

 of a positive correlation. 



It is obvious that such a relationship between Arctic and Antarctic ice conditions 

 can only be investigated by means of the indirect method of an investigation of 

 variations in the general circulation of the entire atmosphere; it shows, however, the 

 great scientific and practical importance of a continuous systematic observational 

 check on ice conditions in the polar regions. 



