Data portal · Topic
Urban air quality and dispersion datasets
Measurements and simulations of how pollutants and tracers spread through streets and neighbourhoods: tracer-gas releases in real cities and in wind tunnels, concentration time series from sensor networks, and LES and RANS dispersion fields around buildings. Many of these datasets are standard cases for validating dispersion models and for studying exposure at street level.
- 72 resources
- 22 field
- 10 lab
- 36 simulation
- 4 tools & geometry
- 14 benchmarks
All 72 resources, largest first
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The Architectural Institute of Japan (AIJ) urban wind environment benchmark suite: wind-tunnel and field data for cases A–M, from a single high-rise building and cube arrays to real districts such as Shinjuku and Niigata, many with STL geometry. Widely used to validate CFD for pedestrian-level wind and dispersion.
Collection · 12 parts Benchmark Lab MeasurementsCase setup Wind tunnel
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High-resolution synthetic 3D concentration fields of an air pollutant in urban environments. Useful for ML training and dispersion model comparison.
Simulation Simulation output ML / surrogate
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WRF-Chem concentration output for four land-use scenarios over the Barcelona metropolitan area during a heatwave. Useful for mesoscale urban air-quality and climate studies.
Simulation Simulation output Mesoscale model
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Benchmark package for source inversion of urban pollution dispersion using building geometry and sparse sensors, including PPMLES/MUST summaries. Useful for testing inversion and sensing methods.
Benchmark Simulation Case setupSimulation output LESML / surrogate
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Supplementary files for LES of firebrand transport and deposition over 12 idealised cubical arrays.
Simulation Simulation outputSoftware & tools LES
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PALM model inputs and source code for high-fidelity urban air quality sensitivity simulations. Useful for dispersion LES setups.
Simulation Case setupSoftware & tools LES
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Ensemble of LES of the MUST experiment for dispersion uncertainty.
Simulation Simulation output LES
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Simulated plume concentration data in urban areas used to train the CityTransformer neural network. Useful for ML surrogates of urban dispersion.
Simulation Simulation output ML / surrogateLES
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Simulation results for the Legerova street domain with air-quality observations. Useful for urban air quality and turbulence studies.
Collection · 2 parts Simulation Simulation output LES
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CFD data on wildfire-related PM2.5 dispersion in an urban area and the effect of vegetation density. Useful for urban pollutant dispersion studies.
Tools & geometry Simulation output
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1:400 wind-tunnel model with uniform and non-uniform roof heights at 90° and 45° wind: LDA velocities and fast-FID concentrations quantifying pollutant exchange through canyon tops and lateral openings, packaged as a CFD validation case.
Benchmark Lab Measurements Wind tunnel
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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.
Benchmark Field Measurements
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Time-resolved wind-tunnel velocity data built to validate LES: three approach boundary layers, flow and puff dispersion in a cube array, and the 1:225 idealised Central-European city Michelstadt with flat or slanted roofs.
Benchmark Lab Measurements Wind tunnel
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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.
Benchmark Field Measurements Wind tunnel
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Flow and concentration data in the 1:225 Michelstadt model for seven ground-level release scenarios, two wind directions, continuous and puff releases; the blind-test benchmark for emergency-response dispersion models.
Benchmark Lab Measurements Wind tunnel
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Hamburg wind-tunnel replica of the Mock Urban Setting Test container array, with flow statistics and dispersion; the main validation case of the COST 732 CFD best-practice guideline.
Benchmark Lab Measurements Wind tunnel
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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.
Benchmark Field Measurements
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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.
Benchmark Field Measurements
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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.
Benchmark Field Measurements
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Wind-tunnel flow and dispersion around single buildings, street canyons and building arrays (CEDVAL)
The classic Hamburg validation database of wind-tunnel flow and concentration data with fully documented boundary conditions, for isolated obstacles, street canyons and obstacle arrays.
Benchmark Lab Measurements Wind tunnel
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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.
Benchmark Field Measurements
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Hamburg wind-tunnel model of the Joint Urban 2003 area of Oklahoma City, used in COST 732; the openly obtainable counterpart to the Joint Urban 2003 field data, whose archive is offline.
Benchmark Lab Measurements Wind tunnel
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CityChem extension to the EPISODE model for urban atmospheric chemistry and dispersion at city scale.
Simulation Software & tools Mesoscale model
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PALM-LES input files for simulating how vehicle fleet electrification changes local aerosol concentrations in Helsinki. Useful as a ready urban LES case setup.
Simulation Case setup LES
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Simulated hazardous gas dispersion data from GRAMM-GRAL over a chemical park building layout. Useful for dispersion and ML studies.
Simulation Simulation output RANS
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Resulting data and source code for an inhomogeneous wind scheme for urban street canyons, validated against CFD. Useful for street-canyon pollutant dispersion parameterisation.
Collection · 5 parts Simulation Simulation outputSoftware & tools RANSAnalytical
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FluidUrban v1.0 geometry and mesh generator with model outputs and plotting scripts for urban ventilation and pollutant dispersion.
Simulation Software & toolsGeometrySimulation output RANS
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Numerical dispersion simulations over the Paris Opera district using the PMSS model.
Simulation Simulation output RANS
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Example CFD simulation and code for distributed training of a U-Net predicting urban aerodynamic flow and pollutant dispersion. Useful for ML surrogates of urban flow.
Simulation Simulation outputSoftware & tools ML / surrogateRANS
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OpenFOAM-v8 set-ups for wind and concentration fields in several street-canyon scenarios.
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Companion dataset for LES analysis of the role of trees in a street canyon.
Simulation Simulation output LES
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PALM model source, configuration and input data for implementing traffic-induced heat and velocity in street-scale LES (Legerova street case). Useful for urban LES of traffic effects.
Simulation Software & toolsCase setupSimulation output LES
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RANS simulations of thermal street canyon pollutant dispersion with surrogate models.
Collection · 2 parts Simulation Simulation outputSoftware & tools RANSML / surrogate
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ANSYS Fluent case files and mesh (14.8M cells) for PM2.5 dispersion from vehicle emissions in an urban area. Useful as a reusable CFD case setup.
Simulation Case setupSimulation output RANS
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Simulation results for the Holesovicky domain in Prague covering air quality and thermal comfort scenarios. Useful for urban microclimate scenario studies.
Simulation Simulation output LES
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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.
Field Measurements
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Input data for PALM with SALSA aerosol module evaluation, including building heights, leaf area density and aerosol emissions. Useful for urban aerosol LES setups.
Simulation Case setupGeometry LES
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CFD model set-up reproducing results on tree impact on gas concentrations in a street canyon.
Simulation Case setupSimulation output RANS
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Source and test cases of urbanChemFoam, a weakly compressible reactive OpenFOAM solver for urban street canyons.
Simulation Software & toolsCase setup LES
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Large-eddy simulation code for city-scale air dispersion in which buildings act as diffusive obstacles. Useful for urban dispersion modelling.
Simulation Software & tools LES
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PALM-CO2 extends the PALM LES model for urban CO2 transport with biogenic flux and anthropogenic emissions. Useful for urban LES carbon dispersion studies.
Simulation Software & tools LES
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OpenFOAM-based CFD code coupling full O3-NOx-VOC photochemistry for microscale reactive pollutant dispersion in urban areas.
Simulation Software & tools RANS
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Observations and CAIRDIO simulation results for an urban dispersion case study in Dresden. Useful for model evaluation.
Simulation Simulation outputMeasurements LES
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uDALES is open-source LES software for urban flow, dispersion and microclimate.
Simulation Software & tools LES
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CFD dataset assessing pollutant removal by photocatalytic facades in open urban settings. Useful for urban air-quality mitigation studies.
Simulation Simulation output RANS
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Data and code for building-resolving dispersion modelling coupled with street-scale CO2 observations. Useful for urban dispersion and emission-estimation studies.
Simulation Simulation output LES
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Data and scripts for a resistance-network model of near-surface winds, ventilation and pollutant transport in Yixing. Useful for urban ventilation studies.
Tools & geometry Simulation outputSoftware & tools Analytical
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3D wind and concentration data at 5-minute resolution from El Prat del Llobregat for validating CFD.
Field Measurements
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Concentration and velocity measurements in the Ecole Centrale de Lyon wind tunnel for urban geometries with street trees.
Lab Measurements Wind tunnel
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Source code of four modelling systems (CHIMERE, GRAMM, GRAL, VERT) for black carbon dispersion over Modena. Useful for urban air-quality and microscale dispersion modelling.
Simulation Software & tools Mesoscale modelRANS
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Roadside measurements of NO released from a van, with wind speed and direction, used to validate CFD models in Oxford.
Field Measurements
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Code and data for including the urban canopy layer in a Lagrangian particle dispersion model.
Tools & geometry Software & tools
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Open-source successor to LANL's QUIC: a mass-conserving diagnostic wind solver on GPU (QES-Winds), a turbulence closure (QES-Turb) and Lagrangian dispersion (QES-Plume) for building-resolving runs much faster than real time.
Simulation Software & tools RANS
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Observations from summer 2017 and winter 2018 campaigns on the effect of vegetation on air quality in urban street canyons.
Field Measurements
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Multi-scale urban air pollution model coupling a chemistry-transport model with a street model, inert particles.
Tools & geometry Software & tools
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Eulerian urban air quality model with embedded subgrid dispersion for high-resolution pollutant concentrations.
Simulation Software & tools Mesoscale model
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LES and DNS datasets of velocity and concentration around a tall building in an aligned array of rectangular buildings, from the DIPLOS project. Useful for studying scalar fluxes and validating dispersion models.
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Wind-tunnel measurements of flow and dispersion over an idealised urban street system, from the DIPLOS project. Useful for validating LES and DNS of urban dispersion.
Lab Measurements Wind tunnel
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Meteorology and air quality field campaign in London in 2011-12, with multiple sites and intensive observations during the 2012 Olympics. Useful for urban boundary-layer and air quality studies; individual datasets are available via the paper authors.
Field Measurements
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Air pollution field campaigns in London in 2006/7 with measurements at ground level and at 160 m on the BT Tower. Useful for studying pollutant concentrations and transport above and within a megacity.
Field Measurements
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Tracer release experiments from the 2004 DAPPLE field campaign in central London. Useful for validating urban dispersion models against measured concentrations.
Field Measurements
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Field measurements of flow and turbulence at the DAPPLE intersection in London, linked to a study of traffic-related pollutant concentrations near the junction. Useful for studying dispersion at urban intersections.
Field Measurements
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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.
Field Measurements
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Large-eddy simulation of street-scale flow and dispersion of multiple tracers in a realistic urban area, including wind-direction effects. Data available on request from the author.
Simulation Simulation output LES
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Rooftop meteorological measurements from the BT Tower during the DAPPLE campaign in London, used to reference street-level flows. Useful as reference wind and turbulence data for urban dispersion and emergency-response studies.
Field Measurements
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Large-eddy simulation data of flow, turbulence and dispersion over random urban-like obstacle arrays. Useful for urban canopy turbulence statistics and dispersion model validation.
Simulation Simulation output LES
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Perfluorocarbon tracer (PMCH) concentration measurements at sites around Birmingham characterising dispersion of pollutants within and from the city.
Field Measurements
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Field measurements of wind in street canyons near an urban intersection in London using ultrasonic anemometers. Useful for validating street-scale flow models.
Field Measurements
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Traffic and air pollution data from the DAPPLE site in central London. Useful for relating traffic emissions to pollutant concentrations at an urban intersection.
Field Measurements
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Field measurements of wind at the Marylebone Road intersection in London (DAPPLE site), collected to study pollution hotspots. Useful for understanding flow and dispersion at a real urban intersection.
Field Measurements
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Physical-model data on flow and concentration for idealised urban geometries, from a project on rapid sensor deployment after outdoor chemical releases. Useful for dispersion and sensor-placement studies.
Lab Measurements Wind tunnel
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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.
Field MeasurementsSimulation outputSoftware & tools Wind tunnel