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Methane and Nitrous Oxide in surface water along the North-West Passage; Arctic Ocean

Dissolved Methane and Nitrous Oxide in seawater were measured along a 6700km transect of the North-West Passage between the North Atlantic Ocean and Beaufort Sea in the Arctic Ocean. Over- and under-saturation with respect to atmospheric equilibrium were observed for both gases. Methane and Nitrous Oxide were in the range of 58-528 % and 82-181 % saturation respectively. Under-saturation was attributed to melt-water with low methane and nitrous oxide, while over-saturation was found under multi-year sea-ice. Elevated methane was also found in the vicinity of the marginal ice zones and the Mackenzie River plume. Our data support both water column...

Authors:   Vassilis, Kitidis , Robert C., Upstill-Goddard , Leif G., Anderson
Journal:   Marine Chemistry
Year:   2010
DOI:   10.1016/j.marchem.2010.03.006
Publication date:   24-Mar-2010
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