The overall experimental set-up, general methodology and meteorological aspects will be discussed in companion papers. Here we address the influence of local features on air temperature and wind flow patterns at the CBD and neighborhood scales. The equipment (“pedicab”) used for local scale measurements allowed us to collect detailed thermographic images of about twenty building façades and several street canyons. In total, about two thousand images were taken during the 24-hour campaign. Images were taken at regular intervals of two hours throughout the day starting from 6 LST. Image analysis provides detailed information on building surface and pavement temperatures at fine resolution. This unique dataset allows us several investigations on local air temperature dependence on albedo, building thermal inertia, building shape and orientation and sky view factors. Besides, the mosaic of building façade temperatures are being analyzed in terms of local buoyancy fluxes and possible wind flow modifications by such thermally driven flows will be elucidated.
The results are of consequence for understanding of microclimate of cities and planning of heat mitigation measures.