Sea ice gas composition (N2, O2, CO2) (Beaufort Sea area 2007-2008)

Gas composition is measured using the dry-extraction technique described for glacial ice by Raynaud and others (1982) and Barnola and others (1983). Since the samples are crushed at very low temperatures and under vacuum, the technique measures the gas composition both from gas bubbles and from gas dissolved in the brines of the sea ice. The exctraction line is used in conjunction with a Varian 3300 gas chromatograph. Oxygen and nitrogen are analyzed using a molecular sieve column and a thermal conductivity detector. Carbon dioxide is analyzed using a Haysep column and flame ionization detector following catalytic transformation into methane.

Metadata Access
Creator Tim Papakyriakou;Team 6 of Circumpolar Flaw Lead system study;Nicolas-Xavier Geilfus;Gauthier Carnat;Frederic Brabant
Publisher Canadian Cryospheric Information Network
Contributor University of Manitoba
Publication Year 2013
Rights Limited
Language English
Discipline Environmental Research
Spatial Coverage (70N-75N,134W-120W)
Temporal Coverage Begin 2007-10-17T11:59:59Z
Temporal Coverage End 2008-08-04T11:59:59Z