Air-Sea Exchange in the Global Mercury Cycle

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Air-Sea Exchange in the Global Mercury Cycle

Show simple item record Strode, Sarah A. Jaeglé, Lyatt Selin, Noelle E. Jacob, Daniel J. Park, Rokjin J. Yantosca, Robert M. Mason, Robert P. Slemr, Franz 2010-03-09T18:36:38Z 2007
dc.identifier.citation Strode, Sarah A., Lyatt Jaegle, Noelle E. Selin, Daniel J. Jacob, Rokjin J. Park, Robert M. Yantosca, Robert P. Mason, and Franz Slemr. 2007. Air-sea exchange in the global mercury cycle. Global Biogeochemical Cycles 21: GB1017. en_US
dc.identifier.issn 0886-6236 en_US
dc.description.abstract We present results from a new global atmospheric mercury model coupled with a mixed layer slab ocean. The ocean model describes the interactions of the mixed layer with the atmosphere and deep ocean, as well as conversion between elemental, divalent, and nonreactive mercury species. Our global mean aqueous concentrations of 0.07 pM elemental, 0.80 pM reactive, and 1.51 pM total mercury agree with observations. The ocean provides a 14.1 Mmol yr−1 source of mercury to the atmosphere, at the upper end of previous estimates. Re-emission of previously deposited mercury constitutes 89% of this flux. Ocean emissions are largest in the tropics and downwind of industrial regions. Midlatitude ocean emissions display a large seasonal cycle induced by biological productivity. Oceans contribute 54% (36%) of surface atmospheric mercury in the Southern (Northern) Hemisphere. We find a large net loss of mercury to the deep ocean (8.7 Mmol yr−1), implying a ∼0.7%/year increase in deep ocean concentrations. en_US
dc.description.sponsorship Earth and Planetary Sciences en_US
dc.description.sponsorship Engineering and Applied Sciences en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.isversionof doi:10.1029/2006GB002766 en_US
dash.license LAA
dc.title Air-Sea Exchange in the Global Mercury Cycle en_US
dc.type Journal Article en_US
dc.description.version Version of Record en_US
dc.relation.journal Global Biogeochemical Cycles en_US Jacob, Daniel J. 2010-03-09T18:36:38Z

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