Measurements of dimethyl sulfide, dimethyl sulfoxide, dimethyl sulfone, and aerosol ions at Palmer Station, Antarctica

In January and February 1994, measurements of dimethylsulfide (DMS) in air and seawater were conducted at Palmer Station, Antarctica, during project SCATE (Sulfur Chemistry in the Antarctic Troposphere Experiment). Corresponding values ranged between 6 and 595 pptv (median: 94 pptv) and 0.7 and 3.7...

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Bibliographic Details
Published in:Journal of Geophysical Research 1998-01, Vol.103 (D1), p.1629-1637
Main Authors: Berresheim, H., Huey, J. W., Thorn, R. P., Eisele, F. L., Tanner, D. J., Jefferson, A.
Format: Article
Language:English
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Summary:In January and February 1994, measurements of dimethylsulfide (DMS) in air and seawater were conducted at Palmer Station, Antarctica, during project SCATE (Sulfur Chemistry in the Antarctic Troposphere Experiment). Corresponding values ranged between 6 and 595 pptv (median: 94 pptv) and 0.7 and 3.7 nM (median: 2 nM), respectively. Atmospheric DMS levels were significantly enhanced during a storm episode in connection with large‐scale low‐pressure systems passing through the study area. DMS sea‐to‐air fluxes ranged between 0.03 and 19 (median: 1.1) μmol m−2 d−1 based on seawater DMS and wind speed measurements. The atmospheric DMS lifetime is estimated to be 9 days based on a 24‐hour averaged OH concentration of 1.1 × 105 cm−3. Atmospheric dimethylsulfoxide (DMSO) and dimethylsulfone (DMSO2) mixing ratios varied mostly between
ISSN:0148-0227
2156-2202
DOI:10.1029/97JD00695