Data portal · Topics
Urban flow datasets by topic
Open data on the flow of air, heat and pollutants through cities, grouped by the question they help answer. A resource can sit under several topics.
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Urban air quality and dispersion datasets
72 resources
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.
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Pedestrian wind and wind-load datasets for buildings
36 resources
Data on how wind interacts with buildings: surface pressure coefficients on isolated and surrounded buildings, wind speeds at pedestrian level around towers and in dense districts, and the flow fields that produce them. Most come from boundary-layer wind tunnels and large-eddy simulations, and many were designed as validation cases for wind-comfort and cladding-load assessments.
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Urban heat island and thermal comfort datasets
68 resources
Observations and model output on the urban heat island and outdoor thermal comfort: dense networks of air-temperature and humidity sensors, surface energy balance and heat-flux measurements, radiation, and urban climate simulations from street to city scale. They are used to evaluate urban land-surface schemes, to study heat and health, and to test climate-adaptation designs.
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Urban and building ventilation datasets
16 resources
Datasets on how air is exchanged between streets, courtyards, buildings and the flow above them: ventilation and air-exchange rates for street canyons, natural and cross-ventilation of buildings, and flow through openings. They come from wind tunnels, water flumes and field campaigns, alongside LES and RANS studies of canopy ventilation.
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Urban boundary layer datasets: wind, turbulence and fluxes
101 resources
Data on the turbulent atmospheric boundary layer over cities, from the roughness sublayer inside the street canopy up to the top of the mixed layer: wind and turbulence profiles from Doppler lidar, tall towers and sonic anemometers, eddy-covariance fluxes, boundary-layer height, and large-eddy and direct numerical simulations of flow over urban-like roughness.
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Datasets for urban canopy parameterisation and modelling
49 resources
Resources for representing cities in weather, climate and dispersion models: building-height and morphology maps, urban canopy parameters such as plan-area and frontal-area density, drag and exchange coefficients derived from simulations and experiments, and benchmark cases for testing urban schemes.