Water-side turbulence enhancement of ozone deposition to the oceanReportar como inadecuado

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1 NOAA Earth Science Research Laboratory 2 INSTAAR 3 MPIC - Max Planck Institute for Chemistry 4 CIRES - Cooperative Institute for Research in Environmental Sciences

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.

Autor: C. W. Fairall - D. Helmig - L. Ganzeveld - J. Hare -

Fuente: https://hal.archives-ouvertes.fr/


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