Efficient Production of Carbonyl Sulfide in the Low‐NO x Oxidation of Dimethyl Sulfide

Details

• Journal Title:
  Geophysical Research Letters
• Personal Author:
  Jernigan, Christopher M. ; Fite, Charles H. ; Vereecken, Luc ; Berkelhammer, Max B. ; Rollins, Andrew W. ; Rickly, Pamela S. ; Novelli, Anna ; Taraborrelli, Domenico ; Holmes, Christopher D. ; Bertram, Timothy H.
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory)
• Description:
  The oxidation of carbonyl sulfide (OCS) is the primary, continuous source of stratospheric sulfate aerosol particles, which can scatter shortwave radiation and catalyze heterogeneous reactions in the stratosphere. While it has been estimated that the oxidation of dimethyl sulfide (DMS), emitted from the surface ocean accounts for 8%–20% of the global OCS source, there is no existing DMS oxidation mechanism relevant to the marine atmosphere that is consistent with an OCS source of this magnitude. We describe new laboratory measurements and theoretical analyses of DMS oxidation that provide a mechanistic description for OCS production from hydroperoxymethyl thioformate, a ubiquitous, soluble DMS oxidation product. We incorporate
• Keywords:
  General Earth And Planetary Sciences Geophysics General Earth And Planetary Sciences General Earth And Planetary Sciences
• Source:
  Geophysical Research Letters, 49(3)
• DOI:
  https://doi.org/10.1029/2021gl096838
• ISSN:
  0094-8276 ; 1944-8007
• Format:
  PDF
• Publisher:
  American Geophysical Union (AGU)
• Document Type:
  Journal Article
• Rights Information:
  Other
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:8337189ad21a26db91a13114d7f4ec9e49002010fd9487ff010dc6de0e7f1572
• Download URL:
  https://repository.library.noaa.gov/view/noaa/53552/noaa_53552_DS1.pdf
• File Type:
  [PDF - 1.17 MB ]