INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 AUGUST 21 I90E AUGUST 



22 



140' ISO' 160" 170* ISO' 170* 160 ISO' 



I4O' ISO' 160' 170' ISO' 170' 160* ISO' 



40' __ 30' 



10' 0' 10" 20' 30' 4O' 



I90Z 



AUGU ST 



E3 I9OE 



AUGU ST 



40' 30' 20 



140' ISO" 



40' 3O' 20' 10' O' 10' 20' 30' 4O' 



For explo.na.tion see Key map 



