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Dimethyl sulfide and its oxidation products in the atmosphere of the Atlantic and Southern Oceans

Davison, B.; O'dowd, C.; Hewitt, C.N.; Smith, M.H.; Harrison, R.M.; Peel, D.A.; Wolff, E.; Mulvaney, R.; Schwikowski, M.; Baltenspergert, U.. 1996 Dimethyl sulfide and its oxidation products in the atmosphere of the Atlantic and Southern Oceans. Atmospheric Environment, 30 (10-11). 1895-1906. 10.1016/1352-2310(95)00428-9

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Abstract/Summary

Dimethyl sulfide, methane sulfonate, non-sea-salt sulfate and sulfur dioxide concentrations in air were obtained during a cruise between the U.K. and the Antarctic during the period October 1992–January 1993. In equatorial regions (30°N to 30°S) the atmospheric DMS concentration ranged from 3 to 46 ng (S)m−3 with an average of 18 ng(S)m−3. In the polar waters and regions south of the Falkland Islands concentrations from 3 to 714ng(S)m−3 were observed with a mean concentration of 73ng(S)m−3. Methane sulfonate concentrations were also enhanced in the vicinity of the Antarctic Peninsula and in the Weddell Sea. A simple model of DMS oxidation was used to estimate the ocean to atmosphere flux rate, and this was found to be within the range of previous estimates, with a mean value of 1011 ng(S) m−2 h−1.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/1352-2310(95)00428-9
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 13522310
Additional Keywords: dimethyl sulphide, Antarctica, aerosol
NORA Subject Terms: Marine Sciences
Chemistry
Date made live: 02 Nov 2016 11:29 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/515022

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