3.3
A microscale three-dimensional urban energy balance model for studying surface temperatures
E. Scott Krayenhoff, University of British Columbia, Vancouver, BC, Canada; and J. A. Voogt
A microscale three-dimensional (3-D) urban energy balance model, Temperatures of Urban Facets in 3-D (TUF-3D), is developed to predict urban surface temperatures for a variety of surface geometries and properties, weather conditions, and solar angles. The surface is composed of plane-parallel roofs, walls and streets that are subdivided into identical, square patches. The model code is structured into radiation, conduction and convection sub-models. The complete model is tested against full-scale urban surface temperature observations from Vancouver and Basel. Modelled surface temperatures perform well at both the facet-average and the sub-facet scales given the precision of the observations and the uncertainties in the model inputs. Potential applications of the model are discussed.
Session 3, Energy Exchange, Water Balances and Anthropogenic Fluxes
Monday, 10 September 2007, 3:45 PM-5:45 PM, Kon Tiki Ballroom
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