Abstract:

The annual variation of temperature and precipitation ofurban and rural stationswas analyzed for a 48-year period through the climate observation data collected from 11 weather stations in the Beijing region from the period of1961-2008. The results showed that the urban heat island (UHI) was increasing, and annual temperature ofurban and rural stations in the Beijing area obviously increased. The average temperature in urban stations is increasing faster than that in rural stations. The climate variations trends in Beijing during the recent48 years and the data showing Beijing’s development indicates that the rapid development ofBeijing aswell as urbanization has greatly influenced the local climate change in Beijing.
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Key words: globalwarming, urban heat island (UHI), temperature, precipitation

摘要：

利用1961~2008年北京11个台站的气候观测资料,分析了过去48 a北京城区、郊区的气温和降水变化趋势。结果表明:在这48 a中,北京城区、郊区的年平均温度都呈明显上升趋势,城区比郊区上升幅度更快;本地年降水量呈下降趋势,且城区下降幅度比郊区明显。说明在全球变暖的背景下,北京的气温和降水的变化趋势相反;通过城区和郊区、平原站和高山站的比较可以看出,城市的热岛效应增加了变化幅度。

关键词: 全球变暖}气温, 降水, 城市热岛效应