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dc.contributor.authorDileepKumar, M.
dc.contributor.authorShenoy, D.M.
dc.contributor.authorSarma, V.V.S.S.
dc.contributor.authorGeorge, M.D.
dc.contributor.authorDandekar, M.
dc.date.accessioned2008-08-11T07:43:26Z
dc.date.available2008-08-11T07:43:26Z
dc.date.issued2002
dc.identifier.citationGeophysical Research Letters, 29(2); DOI: 10.1029/2001GL013967
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1431
dc.description.abstractDimethylsulfide (DMS) results from the decomposition of dimethylsulfoniopropionate (DMSP), a biogenic product, in seawater. Diffusive transfer of DMS from sea-to-air is known to be the most important source of natural non-seasalt sulfur (NSS) in the atmosphere. The wider occurrence of DMSP in marine aerosols has been reported for the first time. DMSP (to about 4.7 pmol m sup(-3)) and DMS (up to 5.8 pmol m sup(-3)) in marine aerosols was found, over the Indian Ocean, wherein DMSP abundance appears to be a function of its concentration in surface seawater and wind speeds. An experiment on board revealed rapid loss (90%) of loaded DMSP from filters exposed to marine atmosphere. A photochemical or other mode of formation of NSS gases from DMSP in aerosols or in surface microlayer, not considered hitherto, can directly contribute to sulfur efflux. Although the computations suggest the DMSP fluxes from these sources to be much smaller (3.4 x 10 sup(10) g S y sup(-1)) compared to DMS diffusive flux (16-25 x 10 sup(12) g S y sup(-1)) the former could be significant in rough weather conditions similar to trends in water export.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.rightsAmerican Geophysical Union
dc.subjectsea water
dc.subjectbiogenic material
dc.subjectaerosols
dc.subjectabundance
dc.subjectwind speed
dc.subjectphotochemistry
dc.subjectair-sea interaction
dc.subjectdissolved gases
dc.titleExport fluxes of dimethylsulfoniopropionate and its break down gases at the air-sea interface
dc.typeJournal Article


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