INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON C.M T. 



WITH WINDS AND AIR TEMPERATURES. 

 DECEMBER 27 I90E DECEMBER 



140' ISO' ISO' 170' ISO' I7O' I8O ISO 



I4O' igo' io' 170" iso" 170" leer laar no- 



30* 20' 10' O' 10* 2O* 30' 



30 20 10 10 2O 



DECEMBER 



DECEMBER 



ISO' 170 180 170 - 160' 



ISO* ISO' 170 180' 170 160' ISO 



ID" 20" 30 



so yn in* n* in' >n 



Huth ' 



For explana,tion see Key map. 



