基于热力重心的广州城市热环境时空变化分析  

Spatio-temporal Changes of Urban Thermal Environment with Thermal Centroid in Guangzhou

作　　者：孙芹芹[1,2] 吴志峰[2,3] 谭建军[2] 

机构地区：[1]厦门大学海洋与环境学院,福建厦门361005 [2]中国科学院广州地球化学研究所,广东广州510640 [3]广东省生态环境与土壤研究所,广东广州510650

出　　处：《地理科学》2010年第4期620-623,共4页Scientia Geographica Sinica

基　　金：国家自然科学基金项目(40571164)资助

摘　　要：城市热环境及其变化与城市发展关系密切,热力环境的时空变化在一定程度上反映了城市发展的空间变化格局。通过构建热力重心转移距离、热力重心转移角度以及热力重心转移贡献率3个指数,计算3个不阶段广州市城市热环境的时空变化格局。结果表明,广州市1990～2005年高温地区的热力重心一直向南迁移。城市热力重心的转移路径与城市内部各地区在不同时期的发展及扩张具有一定的关系。The distribution and evolution of urban thermal environment are influenced by urban development. In this study,the concept of ＂ thermal centroid＂ was given to describe the distribution of urban thermal environment in Guangzhou,and three indices about it were created,including thermal diversion distance,thermal diversion direction as well as thermal diversion contribution. It was showed that,the high-temperature thermal centroid transferred to the south of Guanghzou from 1990 to 2005. During 1990-2000,Panyu District made the greatest negative contribution to the transfer,but the positive contribution was made by Panyu District during 2000 -2005.

关 键 词：地表温度 卫星遥感 定量反演 热力重心 广州 

分 类 号：X16[环境科学与工程—环境科学]