INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



AUGUST 

 NORMAL PRESSURE. M EAN PRESSU R E, N 00 N, G. M .T. I 9 02. 



50' ISO' 170' I8O - 170" 160 ISO I4C 



30 20 10 O 10 20 30' 10 



O* IO 2O 3O 40 



AUGUST 



NORMAL AIR TEMPERATURE. 



MEAN AIR TEMPERATURE, NOON, G.M.T. 1902. 



1*0" ISO* 160* 170' 180 170* 160 ISO' !' 



JO' 2O 10 O" 10' 20' 30' 40' 



I4O' ISO* 160' 170* 160* 170' 160' ISO' 140' 



3O* 20' 10* O* IO* 20' SO' 



For expla.na.tion see Key map 



