On Chemistry Affecting the Turbulent Flux and Turbulence Affecting Chemistry

  • Gé Verver

Abstract

In the atmospheric boundary layer (BL) simultaneous mixing and reacting of gases occur. Mixing is done by turbulence, which effectively brings the reactants together, but which also dilutes the mixture. To describe transport and chemical transformation in a model, two effects may become important: -1- the diffusion coefficient will depend on the chemical properties of the transported scalar, and therefore the conventional gradient diffusion approach to turbulent transport may fail; -2- in the case of bimolecu-lar reactions, the mean transformation rates can significantly change due to correlated concentration fluctuations.

Keywords

Formaldehyde Hydroxyl Covariance Ozone Hydrocarbon 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Atkinson, R., A. Lloyd, and L. Winges, An updated chemical mechanism for hydrocarbon /no x/so 2 photooxidations suitable for inclusion in atmospheric simulation models, Atmos. Environ., 16, 1341–1355, 1982.CrossRefGoogle Scholar
  2. Davis K., Surface fluxes of trace gases derived from convective profiles, Ph.D. thesis, University of Colorado, 1992.Google Scholar
  3. Gao W., and M. Wesely, Numerical modelling of the turbulent fluxes of chemically reactive trace gasses in the atmopheric boundary layer, J. Appl. Meteorol., 33, 835–847, 1994.CrossRefGoogle Scholar
  4. Gregory G., E.V. Browell, and L. Warren, Boundary layer ozone: An airborne survey above the amazon basin, J. Geophys. Res., 93, 1452–1468, 1988.CrossRefGoogle Scholar
  5. Harriss R., et al., The amazon boundary layer experiment (able 2a): Dry season 1985, J. Geophys. Res., 93, 1351–1360, 1988.CrossRefGoogle Scholar
  6. Jacob D., and S. Wofsy, Photochemistry of biogenic emissions over the amazon forest, J. Geophys. Res., 93, 1477–1486, 1988.CrossRefGoogle Scholar
  7. Kuhn M., et al., Intercomparison of the gas-phase chemistry in several chemistry and transport models, Atmos. Environ., 32, 693–709, 1998.CrossRefGoogle Scholar
  8. Trainer M., E. Hsie, S. McKeen, R. Tallamraju, D. Parrish, F. Fehsenfeld, and S. Liu, Impact of natural hydrocarbons on hydroxyl and peroxy radicals at a remote site, J. Geophys. Res., 92, 11879–11894, 1987.CrossRefGoogle Scholar
  9. Verver G., H. V. Dop, and A. Holtslag, Turbulent mixing of reactive gases in the convective boundary layer, Boundary-Layer Meteorol., 85, 197–222, 1997.CrossRefGoogle Scholar
  10. Vilá Guerau de Arellano, J., and P. G. Duynkerke, Influence of chemistry on the flux-gradient relationships for the no-o3-no2 system, Boundary-Layer Meteorol., 61, 375–387, 1992.CrossRefGoogle Scholar
  11. Vilá Guerau de Arellano, J., and J. Lelieveld, Clear and Cloudy Boundary Layers, chap. Chemistry in the atmospheric boundary layer, p. 360, Netherland Acedemy of Sciences, Amsterdam, 1998.Google Scholar
  12. Zimmerman P., J. Greenberg, and C. Westberg, Measurements of atmospheric hy-drocarbons and biogenic emission fluxes in the amazon boundary layer, J. Geophys. Res., 93, 1407–1416, 1988.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Gé Verver
    • 1
  1. 1.Royal Netherlands Meteorological Institute (KNMI)De BiltThe Netherlands

Personalised recommendations