Research on the Temperature Gradients Change from Wuhan Urban Center to Suburb in Summer

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This paper discusses the hottest topics which are about the global thermal environmental problem. Our group did some work in urban heat environment in Wuhan of China. Wuhan is a typical summer-hot- winter-cold city where the phenomenon of urban heat island effect is very strong. In order to find out the heat states of downtown and suburb, we carried out a field moving measurement in the summer of 2011. Two routes (according to the main wind directions) and 12 periods (the typical periods of heat island effect) were chosen by us for this experiment. As a result, we collected a series of data of temperature-humidity index, radiation temperature and wind velocity, made a good deal of graphs by data analysis and reduction. Finally we found several phenomena about urban heat environment, such as different positions of the knee points (inflexion) of the temperature at different time; the intensity of heat island effect from morning to evening. We have gotten some temperature scales about heat island effect in Wuhan. This conclusion provides a quantitative indicator for our urban renewal and redevelopment.

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3598-3602

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.3130/aije.72.33_2

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