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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 2
Atmos. Chem. Phys., 7, 443-451, 2007
https://doi.org/10.5194/acp-7-443-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Atmos. Chem. Phys., 7, 443-451, 2007
https://doi.org/10.5194/acp-7-443-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  25 Jan 2007

25 Jan 2007

Water-side turbulence enhancement of ozone deposition to the ocean

C. W. Fairall1, D. Helmig2, L. Ganzeveld3, and J. Hare4,* C. W. Fairall et al.
  • 1NOAA Earth Science Research Laboratory, Boulder, CO, USA
  • 2INSTAAR, University of Colorado, Boulder, CO, USA
  • 3Max-Planck Institute for Chemistry, Mainz, Germany
  • 4CIRES, University of Colorado, Boulder, CO, USA
  • *now at: SOLAS International Project Office, University of East Anglia, Norwich, UK

Abstract. A parameterization for the deposition velocity of an ocean-reactive atmospheric gas (such as ozone) is developed. The parameterization is based on integration of the turbulent-molecular transport equation (with a chemical source term) in the ocean. It extends previous work that only considered reactions within the oceanic molecular sublayer. The sensitivity of the ocean-side transport to reaction rate and wind forcing is examined. A more complicated case with a much more reactive thin surfactant layer is also considered. The full atmosphere-ocean deposition velocity is obtained by matching boundary conditions at the interface. For an assumed ocean reaction rate of 103 s−1, the enhancement for ozone deposition by oceanic turbulence is found to be up to a factor of three for meteorological data obtained in a recent cruise off the East Coast of the U.S.

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