期刊
METEOROLOGISCHE ZEITSCHRIFT
卷 25, 期 2, 页码 231-244出版社
E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG
DOI: 10.1127/metz/2015/0587
关键词
urban heat island; regional climate modelling; urban land use parameterization
资金
- German Meteorological Service (Deutscher Wetterdienst)
- Deutsche Forschungsgemeinschaft (DFG) as part of the DFG Research Unit 1736 Urban Climate and Heat Stress in mid-latitude cities in view of climate change (UCaHS) [GE 1035/6-1]
- Flemish regional government through FWO (Fund for Scientific Research)
- European Union [308299, 308497]
- program Science for a Sustainable Development (SSD) of the Belgian Science Policy Office (BELSPO) [SD/CS/04A]
- Hercules foundation
- Flemish Government - department EWI
- VITO
- KU Leuven
The regional non-hydrostatic climate model COSMO-CLM is increasingly being used on fine spatial scales of 1-5 km. Such applications require a detailed differentiation between the parameterization for natural and urban land uses. Since 2010, three parameterizations for urban land use have been incorporated into COSMO-CLM. These parameterizations vary in their complexity, required city parameters and their computational cost. We perform model simulations with the COSMO-CLM coupled to these three parameterizations for urban land in the same model domain of Berlin on a 1-km grid and compare results with available temperature observations. While all models capture the urban heat island, they differ in spatial detail, magnitude and the diurnal variation.
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