INTERNATIONAL ANTARCTIC CO-OPERATION. 



I90Z 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 



WITH WINDS AND AIR TEMPERATURES 

 MARCH 18 I90Z MARCH 



19 



IO* ISO" 160' 170' l0' 170* 160 ISO 



30' 20* 10* 0* 10* 20' 30' 



30' 20 10 10 20 30 



I90Z 



MARCH 



2O 1902 



MARCH 



21 



140" iso* 160' iTO* ieo' go' ieo' iso 



M 



30' 20' 10* O* IP' 20' 30' 



170* 160* ISO' 



30' 20' 10' 0* 10' 20' 30' 



For explm.na.tion see Key m.p. 



