WHOLE VOL. NOTES. NORTH ATLANTIC 47 



Notes: All values have been corrected to normal gravity (Lat. 

 45 ) by applying a correction of +1.0 mm. 

 Temperature. 



Hours of observation: I II HI 



1 92 1 January-1921 December*. 8 h , 14 11 , 2i h 



1922 January-1923 March 8 h , i5 h , 2i h 



1923 April-1930 December 8 h , I4 h , 2i h 



The values are calculated by the following formula which 



gives an approximation to the mean of 24 hours : 



1(2X1 + 2X11 + 5X111). 



JACOBSHAVN 

 Authority. 



Det Danske Meteorologiske Institut, Copenhagen, Denmark. 

 Pressure. 



Site: The height of the barometer above Mean Sea Level was: 



1921 January-1923 June 12.6 m 



1923 July-1930 December 31.6 m 



All values have been corrected to Mean Sea Level by applying 

 the following corrections : 



1921 January-1923 June + 1.2 mm 



1923 July-1930 December +3-0 or 3.1 mm 



Notes: All values have been corrected to normal gravity (Lat. 

 45°) D y a Pply m g a correction of +1.5 mm. 

 Temperature. 



Hours: The values are from observations at 8 h , 14 11 , and 2i'\ 

 calculated according to the following formula, 

 which gives an approximation to the mean of 24 

 hours : 



i[2(8 h + i 4 h )+5(2i h )1- 



UPERNIVIK 



Authority. 



Det Danske Meteorologiske Institut, Copenhagen, Denmark. 



Pressure. 



All values have been reduced to Mean Sea Level by applying 

 a correction of +1.8 mm. 

 Notes: All values have been corrected to normal gravity (Lat. 

 45 ) by applying a correction of +1.6 mm. 



