期刊
URBAN CLIMATE
卷 15, 期 -, 页码 1-15出版社
ELSEVIER
DOI: 10.1016/j.uclim.2015.11.008
关键词
Belgium; Brussels; Climate change; Downscaling; Urban heat island; UrbClim model
资金
- program Science for a Sustainable Development (SSD) of the Belgian Science Policy Office (BELSPO) [SD/CS/04A]
- European Community's 7th Framework Programme [308497, 308299]
- Hercules Foundation
- EWI Department of the Flemish Government
This study examines the urban heat island (UHI) of Brussels, for both current (2000-2009) and projected future (2060-2069) climate conditions, by employing very high resolution (250 m) modelling experiments, using the urban boundary layer climate model UrbClim. Meteorological parameters that are related to the intensity of the UHI are identified and it is investigated how these parameters and the magnitude of the UHI evolve for two plausible trajectories for future climate conditions. UHI intensity is found to be strongly correlated to the inversion strength in the lowest 100 m of the atmosphere. The results for the future scenarios indicate that the magnitude of the UHI is expected to decrease slightly due to global warming. This can be attributed to the increased incoming longwave radiation, caused by higher air temperature and humidity values. The presence of the UHI also has a significant impact on the frequency of extreme temperature events in the city area, both in present and future climates, and exacerbates the impact of climate change on the urban population as the amount of heat wave days in the city increases twice as fast as in the rural surroundings. (C) 2015 Elsevier B.V. All rights reserved.
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