The Implications for Building Ventilation of the Spatial and Temporal Variability of Air Temperature in the Urban Canopy Layer Academic Article uri icon

abstract

  • AbstractEffective planning of building ventilation, whether passive or mechanically assisted, requires detailed information about external air temperature. This paper presents experimental evidence from Adelaide, Australia, that demonstrates substantial intra-urban variations in air temperature, whose magnitude changes across the urban space and as a function of time. A canyon air temperature computer model (CAT) capable of predicting air temperature in an urban street canyon for extended periods in a variety of weather conditions, on the basis of meteorological time series recorded at an open site exposed to the same meso-scale conditions, is then applied to illustrate the changes in the Climatic Cooling Potential (CCP) of selected urban locations when the effect of site-specific microclimate is taken into account.

publication date

  • January 1, 2008