Author(s)

Andreas Stohl

Abstract

Some Experiences from Using Tracer Data for Dispersion Model Validation Guest contribution Andreas Stohl LehrstuhlfurBioklimatologie und Immissionsforschung, University of Munich, Am Hochanger 13, 85354 Freising-Weihenstephan, Germany Introduction The validation of atmospheric dispersion models is usually done by comparing model results with concentration data from tracer experiments. Since few such experiments have been carried out yet, best use must be made of the existing data. The evaluation of a model is done either qualitatively by subjective comparisons of concentration maps obtained from the model with the tracer measurements, or quantitatively using certain statistical measures. In the first case, it is virtually impossible to reliably judge the model performance or to compare it against that of other models. Quantitative model evaluation with simple statistical measures, however, is als

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