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《Remote Sensing Technology and Application》 2012-05
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Analysis on Urban Heat Island Effect of the Different Dynamics of Urban Surface Biophysical Descriptors in Shanghai City

Liu Wenyuan,Xie Yanan,Wan Zhilong,Zheng He(School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China)  
Studing the relationship between changes of land surface parameters and heat island effect which has significance for city planning and city sustainable development.This paper adopts three periods of Landsat ETM+ and remote sensing images of 2000,2005,2009 to retrieve the impervious surface area,vegetation and water distribution in Shanghai.It analyzes three parameters such as NDISI(Normalized Difference Impervious Surface Index),IVI(Index-based Vegetation Index) and MNDWI(Modified Normalized Difference Water Index) to get the retrieval results.Then from the angles of time,space and regression analysis,this paper analyzes the changes of Shanghai's urban surface parameters and urban heat island effect of the 9 a.The study shows that,during the 9 a,the area of impervious surface area increased significantly with the cost of vegetation and water reduction which is also the main cause of urban heat island effect.The urban heat island effect in Shanghai trends to strengthen at first and then slowly weakened and the distribution of urban heat island is changing from centralization to decentralization.
【Fund】: 上海市重点学科和科委重点实验室项目(S30108 08DZ2231100);; 上海市科委科技攻关计划项目(10511501702);; 国家自然科学基金项目(61071185)
【CateGory Index】: X16;TP751
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