INTERNATIONAL ANTARCTIC COOPERATION 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



MARCH 



NORMAL PRESSURE. 



MEAN PRESSURE, NOON, GM.T. 1903. 



140* ISO* 160" 170* 180' 170* 160 150' no' 



1 



I 





30' 20' 10' O' 10' 20' 30' 40' 



,* .> 160* iTo* itef 170' ief lac* 140* 



30' 20' 10* o* 10" 20' so' 4O' 



MARCH 



NORMAL AIR TEMPERATURE. 



MEAN AIR TEMPERATURE, NOON, G.M.T. 1903. 



160' 170' 180' 170' 160" ISO 1+0' 



JO 1 5 s 10= ZO^ XT 40 





For expla.na.tion see Key map 



