INTERNATIONAL ANTARCTIC COOPERATION 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



MARCH 



NORMAL PRESSURE 



MEAN PRESSURE, NOON, G.M.T. 1902 



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



30" 20* 10" 0" 10" 2O" 3O" 4O* 



40" SO" 20" 10' O' 10" 20" 30" 40" 



MARCH 



NORMAL AIR TEMPERATURE. 



MEAN AIR TEMPER ATURE.NOON.G.M T. 1302. 



60 170 ISO 170 160 



40- 30' 20" 10 O 20 30 



2O 10 O 2O 3D 4O 



For 



ion see Key map 



