Based on the hourly temperature data from 43 automatic weather stations in the January and July of 2004,the main distribution features of urban heat island(UHI) in the Beijing region are analyzed.

• 应用自动气象站逐时气温观测资料分析了北京城市热岛的时空分布特征。结果表明,无论冬、夏季,北京的城市热岛在空间分布上均表现出多中心结构。