Simulation of surface urban heat islands under ?IDEAL? conditions at night part 1: Theory and tests against field data
Johnson, G. T., Oke, T. R., Lyons, T.J., Steyn, D. G., Watson, I. D. and Voogt, J. A. (1991) Simulation of surface urban heat islands under ?IDEAL? conditions at night part 1: Theory and tests against field data. Boundary-Layer Meteorology, 56 (3). pp. 275-294.
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Observations show that the urban heat island in the atmospheric layer below roof level is most strongly developed during calm, cloudless conditions at night. This paper outlines two versions of a numerical model to describe the cooling of rural and street canyon surfaces under these conditions using surface thermal and radiative properties and the radiative geometry of the canyons. One version uses a full system of differential equations and the other the simpler force-restore approach. The two approaches are shown to be in general agreement and the output of the simpler model is shown to give a faithful representation of cooling of rural and urban surfaces, and therefore heat islands, when compared with field observations.
|Publication Type:||Journal Article|
|Murdoch Affiliation:||School of Biological and Environmental Sciences|
|Publisher:||Kluwer Academic Publishers|
|Copyright:||(c) 2002 Kluwer Academic / Plenum Publishers|
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