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A combined numerical and wind-tunnel study of ventilation and air pollution episodes in a rural valley of Switzerland

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Abstract

A study is reported of air pollution episodes in the Broye valley, a rural area of Switzerland located to the north-east of the city of Lausanne, in which a number of industrial sources of SO2 are located. The study comprises numerical simulations of regional-scale meteorology, local plume behavior, as well as a wind tunnel investigation of the same region in order to ascertain the relative advantages and disadvantages of numerical and physical modeling.

In situ data are available for certain episodes which occured during a very cold period in the winter of 1985, allowing intercomparisons to be made between nature and models. Furthermore, a significant effort undertaken by cantonal authorities has led to the setting up of a detailed emission inventory, which includes industry, individual domestic heating and traffic. Such an inventory has proved invaluable in imposing source terms in the models.

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References

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Authors and Affiliations

  1. LASEN, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland

    Martin Beniston, Dominique Ruffieux & Jacques André Hertig

Authors
  1. Martin Beniston
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  2. Dominique Ruffieux
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  3. Jacques André Hertig
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Beniston, M., Ruffieux, D. & Hertig, J.A. A combined numerical and wind-tunnel study of ventilation and air pollution episodes in a rural valley of Switzerland. Boundary-Layer Meteorol 48, 129–156 (1989). https://doi.org/10.1007/BF00121787

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  • DOI: https://doi.org/10.1007/BF00121787

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