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 2023-05-15T18:25:28+02:00 DMS and SO2 at Baring Head, New Zealand: Implications for the yield of SO2 from DMS De Bruyn, WJ Harvey, M Cainey, JM Saltzman, ES 189 - 209 2002-03-21 application/pdf https://escholarship.org/uc/item/2406c4dq unknown eScholarship, University of California qt2406c4dq https://escholarship.org/uc/item/2406c4dq CC-BY CC-BY Journal of Atmospheric Chemistry, vol 41, iss 2 dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Meteorology & Atmospheric Sciences Physical Chemistry Other Chemical Sciences Atmospheric Sciences Physical Chemistry (incl. Structural) article 2002 ftcdlib 2021-06-20T14:22:56Z 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 New Zealand Pacific Southern Ocean |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Meteorology & Atmospheric Sciences Physical Chemistry Other Chemical Sciences Atmospheric Sciences Physical Chemistry (incl. Structural) |
spellingShingle |
dimethyl sulfide oxidation Southern Ocean sulfur dioxide sulfate aerosols Meteorology & Atmospheric Sciences Physical Chemistry Other Chemical Sciences Atmospheric Sciences Physical Chemistry (incl. Structural) De Bruyn, WJ Harvey, M Cainey, JM Saltzman, ES 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 Meteorology & Atmospheric Sciences Physical Chemistry Other Chemical Sciences Atmospheric Sciences Physical Chemistry (incl. Structural) |
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, WJ Harvey, M Cainey, JM Saltzman, ES |
author_facet |
De Bruyn, WJ Harvey, M Cainey, JM Saltzman, ES |
author_sort |
De Bruyn, WJ |
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 |
op_coverage |
189 - 209 |
geographic |
New Zealand Pacific Southern Ocean |
geographic_facet |
New Zealand Pacific Southern Ocean |
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 |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766206943607652352 |