Modelling the impact of high rise buildings in urban areas on precipitation initiation

Carraça, MGD and Collier, CG 2007, 'Modelling the impact of high rise buildings in urban areas on precipitation initiation' , Meteorological Applications, 14 (2) , 149 - 161.

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The impact of urban areas upon precipitation distribution has been studied for many years. However, the relative importance of the distribution and type of surface morphology and urban heating remains unclear. A simple model of the surface sensible heat flux is used to explore the impact of urban heterogeneity. Sensitivity experiments are carried out to test the validity of the model, and experiments with a schematic urban morphology are used to investigate the impact of different types of building arrays. It is found that high-rise buildings over relatively small areas may have just as much impact as somewhat lower buildings covering a much larger area. The urban area produces considerable spatial variation in surface sensible heat flux. Data from a C-band radar located to the north of Greater Manchester provides evidence that convective cells may be initiated by the sensible heat flux input generated by the high-rise buildings in the city centre when the atmospheric boundary layer is unstable. Copyright © 2007 Royal Meteorological Society

Item Type: Article
Themes: Subjects / Themes > T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication (Inc. www, lidar, radio, radar, phone, TV)
Subjects / Themes > Q Science > QC Physics > QC851-999 Meteorology - Climatology
Subjects / Themes > G Geography. Anthropology. Recreation > GE Environmental Sciences
Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound
Subjects / Themes > Q Science > QA Mathematics > QA075 Electronic computers. Computer science > QA076 Computer software
Subjects outside of the University Themes
Schools: Schools > School of the Built Environment
Journal or Publication Title: Meteorological Applications
Publisher: Royal Meteorological Society
Refereed: Yes
ISSN: 13504827
Related URLs:
Depositing User: H Kenna
Date Deposited: 24 Sep 2007 10:02
Last Modified: 16 Feb 2022 07:51

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