INTERNATIONAL ANTARCTIC CO-OPERATION. 



I9OI 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 12 I9OI DECEMBER 



13 



1+0' ISO" 160' 170" ISO" HO" 160" 150* 



ZC ,M 



20" 30" 



1*0 150" 160* ITO ISO 



3O* 20 10 10 20 30 



I9OI 



DECEMBER 



14 19OI 



DECEMBER 



15 



140' ISO" ISO" 170" . 180" 170" 160 ISO 1*0 



30' 20" 10" O' 10" 20" 30" 



30 20 10 O 20 30 



For explana,tion see Key m&p 



