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Research Article
Sensitivity study of the urban heat island intensity to urban characteristics
Article first published online: 2 AUG 2007
DOI: 10.1002/joc.1598
Copyright © 2007 Royal Meteorological Society
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Additional Information
How to Cite
Hamdi, R. and Schayes, G. (2008), Sensitivity study of the urban heat island intensity to urban characteristics. Int. J. Climatol., 28: 973–982. doi: 10.1002/joc.1598
Publication History
- Issue published online: 24 APR 2008
- Article first published online: 2 AUG 2007
- Manuscript Accepted: 15 JUN 2007
- Manuscript Revised: 3 MAY 2007
- Manuscript Received: 8 MAR 2007
- Abstract
- References
- Cited By
Keywords:
- heat island;
- urban canyon;
- urban surface exchange;
- numerical simulation;
- Martilli's urban boundary layer scheme
Abstract
A detailed urban surface exchange parameterization, implemented in a meso-scale atmospheric model, has been used to study the urban heat island (UHI) intensity during a summer period in the city of Basel, Switzerland. In this urban parameterization, the city is represented as a combination of three urban classes (road, roof and wall), characterized by the size of the street canyon and the building and is thus able to take into account the momentum sink over the entire height of the building, as well as the shadowing and the radiation trapping effects. A control experiment including all the urban parameters describing the city centre of Basel produced a canyon air temperature that compared well with observations. A series of experiments was then conducted in which successively each of the urban parameters characterizing the city centre was changed providing the basis for an assessment of its effect on UHI mitigation. Copyright © 2007 Royal Meteorological Society