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Title:Dispersion experiments in central London: The 2007 DAPPLE project
Authors:Wood, Curtis R (Author)
Arnold, Samantha J (Author)
Balogun, Ahmed A (Author)
Barlow, Janet F (Author)
Belcher, Stephen E (Author)
Britter, Rex E (Author)
Cheng, Hong (Author)
Dobre, Adrian (Author)
Lingard, Justin J N (Author)
Martin, Damien (Author)
Neophytou, Marina K (Author)
Petersson, Fredrik K (Author)
Robins, Alan G (Author)
Shallcross, Dudley E. (Author)
Smalley, Robert J (Author)
Tate, James E (Author)
Tomlin, Alison S (Author)
White, Iain R (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:In the event of a release of toxic gas in the center of London, emergency services personnel would need to determine quickly the extent of the area contaminated. The transport of pollutants by turbulent flow within the complex streets and building architecture of London, United Kingdom, is not straightforward, and we might wonder whether it is at all possible to make a scientifically reasoned decision. Here, we describe recent progress from a major U.K. project, Dispersion of Air Pollution and its Penetration into the Local Environment (DAPPLE; information online at In DAPPLE, we focus on the movement of airborne pollutants in cities by developing a greater understanding of atmospheric flow and dispersion within urban street networks. In particular, we carried out full-scale dispersion experiments in central London from 2003 through 2008 to address the extent of the dispersion of tracers following their release at street level. These measurements complemented previous studies because 1) our focus was on dispersion within the first kilometer from the source, when most of the material was expected to remain within the street network rather than being mixed into the boundary layer aloft; 2) measurements were made under a wide variety of meteorological conditions; and 3) central London represents a European, rather than North American, city geometry. Interpretation of the results from the full-scale experiments was supported by extensive numerical and wind tunnel modeling, which allowed more detailed analysis under idealized and controlled conditions. In this article, we review the full-scale DAPPLE methodologies and show early results from the analysis of the 2007 field campaign data.
Keywords:Air quality, Atmospheric thermodynamics, Dispersions, Experiments
Year of publishing:2009
Number of pages:955-969
Numbering:90, 7
COBISS_ID:5417467 Link is opened in a new window
DOI:10.1175/2009BAMS2638.1 Link is opened in a new window
License:CC BY-SA 4.0
This work is available under this license: Creative Commons Attribution Share Alike 4.0 International
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Title:Bulletin of the American Meteorological Society
Shortened title:BAMS
Publisher:American Meteorological Society
Year of publishing:2009