J903 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 



WITH WINDS AND AIR TEMPERATURES 

 APRIL 30 I9O3 MAY 



I4O* ISO' 160' s 170 /ISO' 170 160" ISO 



1903 



MAY 



1903 



MAY 



140" 



140* ISO" 160" 170' 180* 



30* 20* 10* 0" 10" 20* 30" 40 



For expl,na,tion see Key map 



