INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



JULY 



NORMAL PRESSURE. 



MEAN PRESSURE.NOON, G.M.T. I9O2. 



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



30' 2O* 10* O' 



no* _ io* 



io* 170* 



io* 140* 



1 K 



40' 30* 20* 10* O' IP" 20* 30' 4O" 



JULY 



NORMAL AIR TEMPERATURE. 



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



I4O* ISO' I6O* 170* 180* 170* 160* 130* 140* 



30* 20* 10* O" 10' 2O* 30* 4O* 



I4O* ISO* 160* 170 180* 170* 160 ISO* 140* 



4O* SO* 2O' 10 





For explanation see Key map 



