2003—2006年南宁市热岛强度变化特征  

Characteristics of Urban Heat-Island Intensity in Nanning City

作　　者：陈业国 农孟松 

机构地区：[1]广西壮族自治区气象台,南宁530022

出　　处：《气候变化研究进展》2009年第1期35-38,共4页Climate Change Research

基　　金：广西自然科学基金项目(桂科攻0632006-1D);广西气象局气象科学研究项目(桂气科200709)资助

摘　　要：分析了2003—2006年南宁市区和郊区的10个自动气象观测站气象资料,结果表明,南宁市区的热岛强度(UHI)具有明显的日、月和季节变化。一般来说,南宁市UHI夜间>UHI白天;UHI干季(9月至翌年1月)>UHI雨季(2—8月);UHI秋季>UHI夏季。用不同的温度指标计算出的UHI略有不同:UHI最低气温为1.43℃、UHI平均气温为0.94℃、UHI最高气温为0.28℃。利用灰色关联度分析法分析了影响南宁城市热岛效应的主要气象因子,发现在风速小、相对湿度小的时候热岛效应强。An analysis was performed on the meteorological data from 10 auto-weather stations located in the urban and suburban areas of Nanning City from 2003 to 2006. It shows that urban heat-island intensity （UHI） in Nanning City had evident variations on daily, monthly and seasonal scales. On average, the UHI was larger for night-time, dry season （September-next January） and autumn than that for day-time, wet season （February-August） and summer, respectively. Using different temperatures as indexes for HUI resulted in slight difference： HUIs for the minimum, maximum and mean temperature over 2003-2006 were 1.43℃, 0.94℃, and 0.28℃, respectively. According to the gray analysis of the meteorological factors for HUI effect, small wind speed and small relative humidity may result in a strong UHI in Nanning City.

关 键 词：热岛效应 热岛强度 南宁市 

分 类 号：X16[环境科学与工程—环境科学]