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dc.contributor.authorAsher, Elizabeth C.  Concept link
dc.contributor.authorDacey, John W. H.  Concept link
dc.contributor.authorMills, Matthew M.  Concept link
dc.contributor.authorArrigo, Kevin R.  Concept link
dc.contributor.authorTortell, Philippe D.  Concept link
dc.date.accessioned2012-01-23T19:41:29Z
dc.date.available2014-11-01T08:56:42Z
dc.date.issued2011-12-14
dc.identifier.citationGeophysical Research Letters 38 (2011): L23609en_US
dc.identifier.urihttps://hdl.handle.net/1912/4988
dc.descriptionAuthor Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 38 (2011): L23609, doi:10.1029/2011GL049712.en_US
dc.description.abstractThe vast Antarctic sea-ice zone (SIZ) is a potentially significant source of the climate-active gas dimethylsulfide (DMS), yet few data are available on the concentrations and turnover rates of DMS and the related compounds dimethylsulfoniopropionate (DMSP) and dimethylsulfoxide (DMSO) in sea ice environments. Here we present new measurements characterizing the spatial variability of DMS, DMSP, and DMSO concentrations across the Antarctic SIZ, and results from tracer experiments quantifying the production rates of DMS from various sources. We observed extremely high concentrations (>200 nM) and turnover rates (>100 nM d−1) of DMS in sea-ice brines, indicating intense cycling of DMS/P/O. Our results demonstrate a previously unrecognized role for DMSO reduction as a major pathway of DMS production in Antarctic sea ice.en_US
dc.description.sponsorshipThis work was supported in part by Woods Hole Oceanographic Institution’s Ocean Life Institute and by NSF grant ANT-0838872 to KRA.en_US
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2011GL049712
dc.subjectDMSen_US
dc.subjectDMSOen_US
dc.subjectDMSPen_US
dc.subjectSea iceen_US
dc.titleHigh concentrations and turnover rates of DMS, DMSP and DMSO in Antarctic sea iceen_US
dc.typeArticleen_US
dc.description.embargo2012-06-14
dc.identifier.doi10.1029/2011GL049712


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