Urban tracer dispersion experiment in London (DAPPLE) 2003: field study and comparison with empirical predictionMartin, D., Nickless, G., Price, C. S., Britter, R. E., Neophytou, M. K., Cheng, H., Robins, A. G., Dobre, A., Belcher, S. E., Barlow, J. F., Tomlin, A.S., Smalley, R. J., Tate, J. E., Colvile, R. N., Arnold, S. J. and Shallcross, D. E. (2010) Urban tracer dispersion experiment in London (DAPPLE) 2003: field study and comparison with empirical prediction. Atmospheric Science Letters, 11 (4). pp. 241-248. ISSN 1530-261X Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1002/asl.282 Abstract/SummaryThe DAPPLE (Dispersion of Air Pollutants and their Penetration into the Local Environment) project seeks to characterise near-field urban atmospheric dispersion using a multidisciplinary approach. In this paper we report on the first tracer dispersion experiment carried out in May 2003. Results of concurrent meteorological measurements are presented. Variations of receptor tracer concentration with time are presented. Meteorological observations suggest that in-street channelling and flow-switching at intersections take place. A comparison between roof top and surface measurements suggest that rapid vertical mixing occurs, and a comparison between a simple dispersion model and maximum concentrations observed are presented
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