DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS
Atmospheric dimethyl sulfide (DMS) and sulfur dioxide (SO2) concentrations were measured at Baring Head, New Zealand during February and March 2000. Anti-correlated DMS and SO2 diurnal cycles, consistent with the photochemical production of SO2 from DMS, were observed in clean southerly air off the...
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2002
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ftcdlib:oai:escholarship.org:ark:/13030/qt2406c4dq 2024-09-15T18:37:14+00:00 DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS de Bruyn, Warren J Harvey, Mike Cainey, Jill M Saltzman, Eric S 189 - 209 2002-02-01 application/pdf https://escholarship.org/uc/item/2406c4dq https://escholarship.org/content/qt2406c4dq/qt2406c4dq.pdf https://doi.org/10.1023/a:1014252106572 unknown eScholarship, University of California qt2406c4dq https://escholarship.org/uc/item/2406c4dq https://escholarship.org/content/qt2406c4dq/qt2406c4dq.pdf doi:10.1023/a:1014252106572 CC-BY Journal of Atmospheric Chemistry, vol 41, iss 2 dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Physical Chemistry (incl. Structural) Other Chemical Sciences Atmospheric Sciences Meteorology & Atmospheric Sciences article 2002 ftcdlib https://doi.org/10.1023/a:1014252106572 2024-06-28T06:28:20Z Atmospheric dimethyl sulfide (DMS) and sulfur dioxide (SO2) concentrations were measured at Baring Head, New Zealand during February and March 2000. Anti-correlated DMS and SO2 diurnal cycles, consistent with the photochemical production of SO2 from DMS, were observed in clean southerly air off the ocean. The data is used to infer a yield of SO2 from DMS oxidation. The estimated yields are highly dependent on assumptions about the DMS oxidation rate. Fitting the measured data in a photochemical box model using model-generated OH levels and the Hynes et al. (1986) DMS + OH rate constant suggests that the SO2 yield is 50-100%, similar to current estimates for the tropical Pacific. However, the observed amplitude of the DMS diurnal cycle suggests that the oxidation rate is higher than that used by the model, and therefore, that the SO2 yield is lower in the range of 20-40%. Article in Journal/Newspaper Southern Ocean University of California: eScholarship |
institution |
Open Polar |
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University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Physical Chemistry (incl. Structural) Other Chemical Sciences Atmospheric Sciences Meteorology & Atmospheric Sciences |
spellingShingle |
dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Physical Chemistry (incl. Structural) Other Chemical Sciences Atmospheric Sciences Meteorology & Atmospheric Sciences de Bruyn, Warren J Harvey, Mike Cainey, Jill M Saltzman, Eric S DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
topic_facet |
dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Physical Chemistry (incl. Structural) Other Chemical Sciences Atmospheric Sciences Meteorology & Atmospheric Sciences |
description |
Atmospheric dimethyl sulfide (DMS) and sulfur dioxide (SO2) concentrations were measured at Baring Head, New Zealand during February and March 2000. Anti-correlated DMS and SO2 diurnal cycles, consistent with the photochemical production of SO2 from DMS, were observed in clean southerly air off the ocean. The data is used to infer a yield of SO2 from DMS oxidation. The estimated yields are highly dependent on assumptions about the DMS oxidation rate. Fitting the measured data in a photochemical box model using model-generated OH levels and the Hynes et al. (1986) DMS + OH rate constant suggests that the SO2 yield is 50-100%, similar to current estimates for the tropical Pacific. However, the observed amplitude of the DMS diurnal cycle suggests that the oxidation rate is higher than that used by the model, and therefore, that the SO2 yield is lower in the range of 20-40%. |
format |
Article in Journal/Newspaper |
author |
de Bruyn, Warren J Harvey, Mike Cainey, Jill M Saltzman, Eric S |
author_facet |
de Bruyn, Warren J Harvey, Mike Cainey, Jill M Saltzman, Eric S |
author_sort |
de Bruyn, Warren J |
title |
DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
title_short |
DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
title_full |
DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
title_fullStr |
DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
title_full_unstemmed |
DMS and SO2 at Baring Head, New Zealand: Implications for the Yield of SO2 from DMS |
title_sort |
dms and so2 at baring head, new zealand: implications for the yield of so2 from dms |
publisher |
eScholarship, University of California |
publishDate |
2002 |
url |
https://escholarship.org/uc/item/2406c4dq https://escholarship.org/content/qt2406c4dq/qt2406c4dq.pdf https://doi.org/10.1023/a:1014252106572 |
op_coverage |
189 - 209 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Journal of Atmospheric Chemistry, vol 41, iss 2 |
op_relation |
qt2406c4dq https://escholarship.org/uc/item/2406c4dq https://escholarship.org/content/qt2406c4dq/qt2406c4dq.pdf doi:10.1023/a:1014252106572 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.1023/a:1014252106572 |
_version_ |
1810481584141238272 |