Large chlorine releases inside a mock urban container array, Dugway (Jack Rabbit II)
BenchmarkFieldOn request
5–20 tonne pressurised liquefied chlorine releases in 2015–16, partly inside a staggered array of about 80 shipping containers, with concentration arcs out to 11 km: the key dense-gas benchmark for built environments.
The data are not public. Email the Jack Rabbit programme at the US Department of Homeland Security (Jack.Rabbit@st.dhs.gov) with your affiliation and intended use to request access. The ADMLC dataset list linked above describes this route.
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.
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.
Project developing integrated models and decision-support tools for city design for natural ventilation and air quality, with CFD, field and physical-model work. Full data release is pending.
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.
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.