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Spatial air temperature variations and urban land use - a statistical approach

Published online by Cambridge University Press:  02 July 2003

I Eliasson  and
M K Svensson
I Eliasson
Affiliation:
Laboratory of Climatology, Physical Geography, Earth Sciences Centre, University of Göteborg, Box 460, SE-405 30, Göteborg, Sweden Email: [email protected]
M K Svensson
Affiliation:
Laboratory of Climatology, Physical Geography, Earth Sciences Centre, University of Göteborg, Box 460, SE-405 30, Göteborg, Sweden Email: [email protected]
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Abstract

Using a statistical approach this paper focuses on an analysis of spatial air temperature variations and their relation to urban land use. The work is based on data collected during an 18-month period at 30 sites in Göteborg, Sweden. Measurements show intra-urban air temperature differences of up to 9 °C in the urban district, and the main purpose of this study is to determine if these variations are statistically significant. A stepwise multiple regression analysis confirmed that surface cover is important for governing air temperature differences in the area. Information on land use and surface cover was gathered from a continuously updated land use database, the Master Plan of Göteborg, and a separate site description analysis. The site description analysis includes a test of three methods using aerial or fish-eye photos for characterisation of surface cover in the urban district. The results show statistically significant temperature variations between different land use/land cover categories on a diurnal basis and for all weather conditions. The importance of the results for urban planning application is discussed.

Type
Research Article
Information
Meteorological Applications , Volume 10 , Issue 2 , June 2003 , pp. 135 - 149
Copyright
© 2003 Royal Meteorological Society

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