Articles | Volume 23, issue 18
https://doi.org/10.5194/acp-23-10609-2023
https://doi.org/10.5194/acp-23-10609-2023
Measurement report
 | 
26 Sep 2023
Measurement report |  | 26 Sep 2023

Measurement report: Carbonyl sulfide production during dimethyl sulfide oxidation in the atmospheric simulation chamber SAPHIR

Marc von Hobe, Domenico Taraborrelli, Sascha Alber, Birger Bohn, Hans-Peter Dorn, Hendrik Fuchs, Yun Li, Chenxi Qiu, Franz Rohrer, Roberto Sommariva, Fred Stroh, Zhaofeng Tan, Sergej Wedel, and Anna Novelli

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Cited articles

Albrecht, S.: Development of a highly sensitive and versatile mass spectrometer system for laboratory and atmospheric measurements, Schriften des Forschungszentrums Jülich, Reihe Energie & Umwelt, 171 pp., Bergische Universität Wuppertal, Dissertation, http://hdl.handle.net/2128/8414 (last access: 20 September 2023), 2014. 
Albu, M., Barnes, I., Becker, K. H., Patroescu-Klotz, I., Benter, T., and Mocanu, R.: FT-IR product study on the OH radical initiated oxidation of dimethyl sulfide: Temperature and O(2) partial pressure dependence, in Simulation and Assessment of Chemical Processes in a Multiphase Environment, edited by: Barnes, I. and Kharytonov, M. M., 501–513, Springer, Dordrecht, https://doi.org/10.1007/978-1-4020-8846-9_41, 2008. 
Assaf, E., Finewax, Z., Marshall, P., Veres, P. R., Neuman, J. A., and Burkholder, J. B.: Measurement of the Intramolecular Hydrogen-Shift Rate Coefficient for the CH3SCH2OO Radical between 314 and 433 K, J. Phys. Chem. A, 127, 2336–2350, https://doi.org/10.1021/acs.jpca.2c09095, 2023. 
Baer, D. S., Paul, J. B., Gupta, M., and O'Keefe, A.: Sensitive absorption measurements in the near-infrared region using off-axis integrated cavity output spectroscopy, SPIE Proc., 4817, Diode Lasers and Applications in Atmospheric Sensing, https://doi.org/10.1117/12.451461, 2002. 
Barnes, I., Bastian, V., Becker, K. H., and Overath, R. D.: Kinetic studies of the reactions of IO, BrO, and ClO with dimethylsulfide. Int. J. Chem. Kinet., 23, 579–591, https://doi.org/10.1002/kin.550230704, 1991. 
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Short summary
The trace gas carbonyl sulfide (OCS) transports sulfur from the troposphere to the stratosphere, where sulfate aerosols are formed that influence climate and stratospheric chemistry. An uncertain OCS source in the troposphere is chemical production form dimethyl sulfide (DMS), a gas released in large quantities from the oceans. We carried out experiments in a large atmospheric simulation chamber to further elucidate the chemical mechanism of OCS production from DMS.
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