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Science 26 January 2007:
Vol. 315. no. 5811, pp. 506 - 508
DOI: 10.1126/science.1133680
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Reports

Strong Relationship Between DMS and the Solar Radiation Dose over the Global Surface Ocean

Sergio M. Vallina and Rafel Simó

Marine biogenic dimethylsulfide (DMS) is the main natural source of tropospheric sulfur, which may play a key role in cloud formation and albedo over the remote ocean. Through a global data analysis, we found that DMS concentrations are highly positively correlated with the solar radiation dose in the upper mixed layer of the open ocean, irrespective of latitude, plankton biomass, or temperature. This is a necessary condition for the feasibility of a negative feedback in which light-attenuating DMS emissions are in turn driven by the light dose received by the pelagic ecosystem.

Institut de Ciències del Mar (CSIC), Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.

E-mail: sergio.vallina{at}icm.csic.es (S.M.V.); rsimo{at}icm.csic.es (R.S.)

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Weak response of oceanic dimethylsulfide to upper mixing shoaling induced by global warming.
S. M. Vallina, R. Simo, and M. Manizza (2007)
PNAS 104, 16004-16009
   Abstract »    Full Text »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)