| 北京城市化进程对城市热岛的影响研究 |
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| 引用本文： | 季崇萍,刘伟东,轩春怡.北京城市化进程对城市热岛的影响研究[J].地球物理学报,2006,49(1):69-77. |
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| 作者姓名： | 季崇萍 刘伟东 轩春怡 |
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| 作者单位： | 1.中国科学院大气物理研究所大气边界层和大气化学国家重点实验室，北京 100029 2 中国气象局北京城市气象研究所，北京 100089 |
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| 基金项目： | 科技部社会公益类项目“北京城市热岛、高温热浪监测及预测技术研究”,北京市自然科学基金项目（8051002）和中国科学院大气物理研究所大气边界层和大气化学国家重点实验室开放课题（LAPC-KF-2004-02）资助. |
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| 摘 要： | 利用1971～2000年北京20个气象观测站逐日４个时次（02:00、08:00、14:00、20:00）的温度资料，选取具有代表性的城区和郊区多个站点的平均值对北京城市化进程对城市热岛效应的影响、城市热岛强度的日变化和长期变化进行了研究.分析结果指出：（1）北京城市热岛强度和总人口对数呈线性相关关系，其长期变化相关系数为076；（2）北京城市建成区的范围与城市热岛影响范围呈同步变化趋势；(3)不同时次城市热岛强度的长期变化指出，北京城市热岛强度以平均每10年022℃的速率加剧，其中1999年北京热岛强度达113℃（夜间，02:00）；(4)夜间热岛强度明显大于日间.就10年平均而言, 20世纪80年代和90年代夜戒热岛强度均超过05℃；(5)一天4个时次热岛强度的季节变化趋势基本一致，均表现为冬季强、夏季弱.并且，夜间02:00时热岛最强，中午14:00时热岛最弱.
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| 关 键 词： | 北京城市化进程 城市热岛 长期变化 日变化 |
| 文章编号： | 0001-5733（2006）01-0069-09 |
| 收稿时间： | 2004-07-27 |
| 修稿时间： | 2004-07-272005-06-13 |
Impact of urban growth on the heat island in Beijing |
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| JI Chong-Ping,LIU Wei-Dong,XUAN Chun-Yi.Impact of urban growth on the heat island in Beijing[J].Chinese Journal of Geophysics,2006,49(1):69-77. |
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| Authors: | JI Chong-Ping LIU Wei-Dong XUAN Chun-Yi |
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| Institution: | 1.State Key Laboratory of Atmospheric Boundary Physics and Atmospheric Chemistry,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 2 Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China |
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| Abstract: | The urban heat island (UHI) intensity in Beijing, China, has been investigated using temperature data measured at 20 observation stations from 1971 to 2000. The impact of urban growth on the heat island also has been studied by statistic analyzing economic and social development of Beijing. Three urban stations and seven suburb stations were chosen to investigate diurnal and long term variation of the urban heat island. The conclusion can be drawn as following: (1) The UHI intensity and the total population logarithm of Beijing are creditable correlated, and the long term correlative coefficient reaches to 076. (2) The urban expansion (construction cover) is very obvious in Beijing, and the scope of the UHI is spreading simultaneously. (3) The increasing trend of UHI intensity is also found in Beijing. It shows that the UHI has been intensified at a ratio of 022℃ per 10 years. In 1999, the nightly UHI intensity reached the maximum, 113℃. (4) Similar to previous studies for other cities, the maximum UHI intensity is more frequently observed in the nighttime than in the daytime, and it is generally more than 05℃. (5)The seasonal trend of UHI intensity is similar for different times (02:00, 08:00, 14:00 and 20:00) of a day. The maximum intensity appears at the nighttime at 02:00 and the minimum at noon at 14:00. |
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| Keywords: | Beijing urbanization Urban heat island (UHI) Long-term trend Diurnal variation |
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