5i6 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



SEA-LEVEL PRESSURE AT 10° INTERSECTIONS 



Lat. 70° N. Long. 120° E. 

 950 mb. + 



60.7 



61.5 67.8 66.0 70.7 77.5 



56.6 59.9 66.4 



55.5 60.5 64.5 



59.2 60.3 64.0 

 64.7 



59.3 62.3 67.7 



57.2 67.5 61.1 



60.0 61.3 67.9 



56.9 55.7 59.0 



65.0 

 64.2 

 62.1 

 64.1 

 61.3 



74.3 

 67.3 

 68.1 

 67.5 

 70.3 



72.0 

 69.6 

 71.6 

 72.8 

 70.6 



68.2 



66.4 

 66.8 

 66.2 

 67.1 

 66.2 



65.4 72.8 75.3 66.0 



67.4 75.8 67.1 69.0 



60.4 66.7 73.1 63.6 



75.1 



Mean 74.6 75.3 71.1 65.1 63.4 59.5 58.2 59.9 64.8 64.0 70.9 72.2 



66.6 



Lat. 70° N. Long. 140° E. 

 950 mb. + 



63.1 62.3 62.7 61.4 62.0 07.1 



Date Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Year 



71.2 74.8 68.1 



1929 80.7 80.6 



1930 69.6 74.6 



1931 80.7 77.6 



1932 64.7 79.1 



1933 71.0 84.6 



1934 76.1 67.6 



1986 C9.1 62.6 

 1936 84.4 84.2 



1987 66.0 65.2 

 1938 74.2 71.4 

 1989 82.2 



Mean 74.3 74.7 70.9 66.4 64.2 60.1 59.1 60.3 65.4 64.0 70.8 71.0 66.7 



