Abstract
The reduction of ozone in the nocturnal residual layer by vertical mixing to the surface was investigated for several summer smog episodes on the Swiss plateau in the years 1990 and 1991. Using a limited data set of SODAR measurements and surface ozone concentrations, a parameterization of the ozone depletion in the nocturnal residual layer due to vertical mixing to the ground is proposed. This model is not intended to be physically complete but is rather simple with limited input information required. The nocturnal ozone reduction within the whole planetary boundary layer (nocturnal boundary layer plus residual layer) over the complex terrain of the Swiss plateau for the days investigated is between 20 and 50%.
Similar content being viewed by others
References
Harrison, R. M., Holman, C. D., McCourtney, H. A., and McIlvenn, J. F. R.: 1978, ‘Nocturnal Depletion of Photochemical Ozone at a Rural Site’,Atmos. Environ. 12, 2021–2026.
Kunkel, K. E. and Walters, D.L.: 1981, ‘Intermittent Turbulence in Measurements of the Temperature Structure Parameter under Very Stable Conditions’,Boundary-Layer Meteorol. 22, 49–60.
Mahrt, L., Heald, R. C., Lenschow, D. H., Stakov, B. B., and Troen, I.: 1979, ‘An Observational Study of the Structure of the Nocturnal Boundary Layer’,Boundary-Layer Meteorol. 17, 247–264.
Nappo, C. J.: 1991, ‘Sporadic Breakdowns of Stability in the PBL over Simple and Complex Terrain’,Boundary-Layer Meteorol. 54, 69–87.
Neu, U., T. Künzle and H. Wanner: 1994, ‘On the Relation between Ozone Storage in the Residual Layer and the Daily Variation in Near Surface Ozone Concentration — A Case Study’,Boundary-Layer Meteorol. 69, 221–247.
Winkler, K.: 1980, ‘Störungen der nächtlichen Grenzschicht’,Meteorol. Rdsch. 33, 90–94.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Neu, U. A parameterization of the nocturnal ozone reduction in the residual layer by verticla downward mixing during summer smog situations using sodar data. Boundary-Layer Meteorol 73, 189–193 (1995). https://doi.org/10.1007/BF00708937
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00708937