气象2016，Vol.42Issue(5)：598-606,9.DOI:10.7519/j.issn.1000-0526.2016.05.009
1971-2010年京津冀大城市热岛效应多时间尺度分析
Multi-Time Scale Analysis of Megacities Heat Island Effect in Beijing-Tianjin-Hebei Region from 1971 to 2010
摘要
Abstract
Based on a homogenized daily air temperature dataset from 1971 to 2010 and quantity controlled hourly air temperature data of Beijing-Tianjin-Hebei Region in 2011,the multiscale temporal characteris-tics of urban heat island effect for Beijing,Tianjin and Shijiazhuang are analyzed in this paper.The results show that the urban heat island effect on the mean,maximum,minimum air temperature is asymmetrical. The heat island effect on the minimum temperature is the strongest,followed by the effect on the mean temperature and the effect on the maximum temperature is the weakest.The mean temperature in Beijing is affected by urban heat island effect most significantly,followed by Tianjin’s.Shijiazhuang’s heat island effect is relatively weak,but showing the trend of significantly increasing during the late 40 years,up to 0.13℃ every 10 years.For the maximum temperature,urban heat island effect in Shijiazhuang is the strongest,followed by Beijing’s.Tianjin’s heat island effect is relatively weak.Beijing’s heat island effecton maximum temperature increases slowly during the 40 years,being 0.06℃ every decade.No significant change in Tianjin.Shijiazhuang’s heat island effect shows a weak downward trend.For the minimum tem-perature,Beijing’s heat island effect is the strongest,then is Tianjin’s.Shijiazhuang’s heat island effect is the weakest.Tianjin’s heat island effect on lowest temperature increases in the 40 years,0.18℃ every decade.Tianjin has no significant change,followed by the Shijiazhuang’s.Beijing’s heat island effect shows a slight downward trend.Generally,the three cities heat island effect intensities for mean and maxi-mum air temperature are characterized by weak in summer and strongest in winter,for maximum tempera-ture,they are different with change of seasons.The seasonal heat island effect from automatic weather station is similar to the heat island effect calculated from the data in 1971-2010.The heat-island effect in a day is characterized by low during the daytime and high during the nighttime.关键词
京津冀/热岛效应/气温/变化Key words
Beijing-Tianjin-Hebei/urban heat island effect/air temperature/changes分类
天文与地球科学引用本文复制引用
刘伟东,尤焕苓,孙丹..1971-2010年京津冀大城市热岛效应多时间尺度分析[J].气象,2016,42(5):598-606,9.基金项目
中国科学院战略性先导科技专项（XDA05090202）及国家自然科学基金项目（40975066和41375069）共同资助 （）
