Radiative surface heating over slopes induces buoyantly-driven anabatic winds that can transport air pollutants, heat, and moisture, affecting air quality and mountain weather via convection and evapotranspiration. This study uses multi-level turbulence observations over a steep Alpine slope in Val Ferret, Switzerland, to characterize daytime anabatic winds’ mean and turbulence structures and their evolution. It further invest...

We investigate the flow characteristics around step-up street canyons with various building aspect ratios (ratio of along-canyon building length to street-canyon width, and upwind building height to downwind building height) using a computational fluid dynamics (CFD) model. Simulated results are validated against experimental wind-tunnel results, with the CFD simulations conducted under the same building configurations as thos...