%0 Journal Article
%T A study of thermal effect of urban canopy structure on urban heat island with town energy balance scheme<br>应用城市地表能量平衡方案研究城市冠层结构对城市热岛的热力影响
%A He Xiaofeng
%A Jiang Weimei
%A Liu Hongnian and
%A <br>何晓凤
%A 蒋维楣
%A 刘红年
%A 等
%J 大气科学
%D 2008
%I 
%X To study the difference and the reasons of simulating the Urban Heat Island(UHI) with the Town Energy Balance(TEB) scheme and with the SVAT(soil-vegetation-atmosphere transfer) scheme,some ideal numerical experiments are performed with a regional boundary layer model,which is developed by Nanjing University.Results show that because of the great ability of simulating urban heat storage,the TEB scheme is better than the SVAT scheme in simulating the UHI phenomenon.Moreover,the UHI obviously affects the thermal structure of urban boundary layer,that is,there is obvious difference of surface potential temperature profile between urban and rural areas in the morning and the evening.At the same time,urban temperature is higher than rural temperature all through the day.The reaching height of the temperature difference between urban and rural areas in the daytime is higher than that in the nighttime.The anthropogenic heating and building structure play an important role in the UHI.The effect of anthropogenic heating on the UHI in the nighttime is greater than that in the daytime.As far as the turbulence in the daytime over the urban areas is concerned,the effect of buildings is larger than that of the anthropogenic heating.
%K urban heat island
%K urban boundary layer
%K urban canopy layer
%K numerical simulation
%K surface energy balance<br>城市热岛
%K 城市边界层
%K 城市冠层
%K 数值模拟
%K 地表能量平衡
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=D4EB85763905F5A38965EDE427F3FBDA&yid=67289AFF6305E306&vid=9971A5E270697F23&iid=B31275AF3241DB2D&sid=B93F010195432A97&eid=8D2AA7F1A00E26D5&journal_id=1006-9895&journal_name=大气科学&referenced_num=2&reference_num=17