Intensive tracer and flow experiments in central London (DAPPLE, 2007)
FieldOn request
Intensive tracer dispersion experiments with accompanying flow measurements at the DAPPLE site in central London (2007). Useful for testing urban dispersion and emergency-response models.
Access
There is no public download. Email Alan Robins to ask for the data.
Not stated: check the repository before reusing the data.
How to cite
University of Surrey. (2009). DAPPLE-HO: Intensive tracer experiments and flow at DAPPLE site [Data set]. https://www.urbanfluidmechanics.org/data-portal/dapple-ho-intensive-tracer-experiments-and-flow-at-dapple-site/
Please also cite the publication below that describes it.
A real-city SF6 field release sampled at 20 detectors, plus wind-tunnel pedestrian-level concentration time series for continuous and puff releases in a model of the same downtown.
Urban Dispersion Program field studies in 2005: two intensive periods around Madison Square Garden (March) and six in Midtown (August) with up to seven perfluorocarbon and SF6 tracers, street-level and rooftop samplers, sonic anemometers and sodars, plus indoor and subway sampling in MID05.
DTRA/DHS field study in July 2003: ten 8-hour intensive periods of SF6 releases in the central business district, sampled by 194 bag samplers and 25 fast-response analysers, with winds and turbulence measured at about 100 sites. A classic real-city dispersion benchmark.
Basel Urban Boundary Layer Experiment, 2001–02: a year-long network of energy-balance towers across urban, suburban and rural sites, with a June–July 2002 intensive period adding a wind profiler, sodar/RASS, lidar, a street-canyon tower and four SF6 tracer releases. A reference for urban roughness-sublayer turbulence and energy balance.
Classic multiscale urban dispersion campaign: SF6 and perfluorocarbon tracer releases with meteorology around a single building, across the downtown grid and over the wider city, mostly in stable night-time conditions. Files are openly downloadable by IOP.
TURDATA from the TURBAN Prague campaign: low-cost air quality sensor network, meteorological station and remote-sensing vertical profiles in the Legerova street domain. Intended for validating micro-scale urban dispersion models.
From the original UFM data portal, added 2026-11-07.
Listed there as “DAPPLE-HO: Intensive tracer experiments and flow at DAPPLE site”. Tags proposed by AI and not yet checked by hand. Spotted a mistake? Tell the portal contacts.