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HOBBS— ROLE OF GLACIAL ANTICYCLONE LApiii 24, 



The glacial anticyclones of Greenland and Antarctica through draw- 

 ing down of air from the upper levels and as a consequence of a 

 throughout centrifugal surface circulation, are a very important 

 factor in reversing the high poleward currents within high latitudes 

 and directing them equatorward. The source of energy which 



Fig. II. (a) World map to show the present position of the earth's 

 wind poles where the air of the upper stratum within the troposphere is in 

 large part returned to the surface in glacial anticyclones, (b) World map 

 to show the corresponding wind poles of the Pleistocene period. 



maintains the whole system in motion, is of course the sun's heat 

 concentrated within the tropics and in large measure absorbed over 

 the continental glaciers (Fig. iia). It is to be assumed that the 



