I9OI 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 16 1901 DECEMBER 



17 



I4O" ISO' 160' 170* 180* 170' 160' ISO" 140' 



\;*r- 

 " ' * 



. 



_ ic 



4O* 3O* 2tf **TO" 0" 10" 20* 30" 4O* 



I4O' ISO" 160' ; 70" 180' '.10' 180" ISO' 



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



I9OI 



DECEMBER 



18 I9OI 



DECEMBER 



19 



1*0* 150 160 170 ,JBO I7Q 160 ISO 



SO* 20" I0! 0" 10" 20* 30" 



I4O* ISO" 160* 170* ., 160* 170* 160* ISO 1 



30* 20* 10" 0" 



For expl *.na,tion see Key mar 



