1904- 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 MARCH 1 19O4- MARCH 



50 140* 



10" 20" 30 40* 



I4O* 150 ISO* 170* ISO* 170' 180* ISO' 140 



I9O4- 



M AR C H 



9 I9O4- 



M AR C H 



1C 



I4O' ISO' ISO' 170' 180' 170 160 ISO' 140' 



30" 20" 10" O" 10" 2O" 30" 



For expla.na.tion see Key map. 



