90 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 79 



JACOBSHAVN 

 Authority. 



Det Danske JMeteorologiske Institut, Copenhagen, Denmark. 

 Pressure. 



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

 12.6 m. throughout the period (1873 to 1920). 

 All values have been reduced to Mean Sea Level by applying 

 a correction of +1.2 mm. 

 Hours: The values are the means of observations at 8'\ 14'^ and 



2I^\ 



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



45°) by applying a correction of + 1.5 muL 

 Temperature. 



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



calculated according to the following formula, 



which gives an approximation to the mean of 24 



hours : 



i[2(8h+I4H)+5X(2lh)] 



Precipitation. 



The height of the rim of the rain gage above the ground is 1.9 m. 



UPERNIVIK 

 Authority. 



Det Danske iVIeteorologiske Institut, Copenhagen, Denmark. 

 Pressure. 



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



1874 September to 1878 August 12.0 m. 



1878 September to 1881 July 14.0 m. 



1881 August to 1898 July 12.0 m. 



1898 August to 1905 June 15 13.3 m. 



1905 June 16 to 1920 18.9 m. 



All values have been reduced to Mean Sea Level by applying 

 the following corrections : 



1874 September to 1878 August + 1.2 mm. 



1878 September to 1881 July +1.4 mm. 



1881 August to 1898 July +1.2 mm. 



1898 August to 1905 June 15 + 1-3 mm. 



1905 June 16 to 1920 + 1.8 mm. 



Hours: The values are the means of oljservations at 8'\ 14^, 



and 2i'\ 

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

 45°) by api)lying a correction of +1.6 mm. 



