1,2,4,5,6,1,7,8- 1University of Reading, Meteorology, Reading, United Kingdom of Great Britain – England, Scotland, Wales
- 2Institute of Spatial and Regional Planning, University of Stuttgart, Stuttgart, Germany
- 3School of Mechanical Engineering Sciences, University of Surrey, Guildford, UK
- 4Chair of Environmental Meteorology, University of Freiburg, Freiburg, Germany
- 5Foundation of Research and Technology Hellas (FORTH), Institute of Applied and Computational Mathematics, Heraklion, Greece
- 6School of Chemistry, University of Bristol, Bristol, UK
- 7Imperial College London, London, UK
- 8Engineering and Physical Sciences Faculty, University of Southampton, Southampton, UK
Climate change will affect most of the world’s urban population. Developing resilient urban environments requires improved weather and climate modelling. Heterogeneity exists from street (100m) to neighbourhood (1km) to city (10km) scales due to urban form and function. How should it be parameterised, given that it influences atmospheric processes acting over a similar range of scales?
To address this challenge, we combine city-scale field observations, resident interviews, high-resolution numerical (LES, NWP) and wind-tunnel (WT) modelling. The focus is on Bristol, UK, as it is compact, has representative land-use, and has coastal proximity and complex terrain. It follows other year-long urbisphere project campaigns in Berlin, Paris, Freiburg, and Heraklion.
This talk provides an overview of the WT, LES and NWP modelling and observations thus far in the project. A case study is described where the sub-neighbourhood scale Avon River Gorge influences boundary layer and dispersion processes.
How to cite: Barlow, J., Grimmond, S., Birkmann, J., Carpentieri, M., Christen, A., Chrysoulakis, N., Coceal, O., Matthews, J., Placidi, M., Robins, A., Shallcross, D., Smith, S. T., van Reeuwijk, M., and Xie, Z. T.: Across-scale boundary layer processes in complex urban environments: the urbisphere - ASSURE Bristol project , EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-21253, https://doi.org/10.5194/egusphere-egu26-21253, 2026.
