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遥感技术与应用  2012, Vol. 27 Issue (5): 797-803    DOI: 10.11873/j.issn.1004-0323.2012.5.797
遥感应用     
不同地表参数变化的上海市热岛效应时空分析
刘文渊,谢亚楠,万智龙,郑 和
(上海大学通信与信息工程学院,上海 200072)
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)
 全文: PDF(4125 KB)  
摘要:

研究地表参数变化与热岛效应的关系对优化城市功能分区以及城市可持续发展具有重要意义。采用上海市2000、2005、2009年3个时期的Landsat ETM+卫星遥感影像,使用归一化不透水面指数(NDISI)、基于指数的植被指数(IVI)、归一化差异水体指数(MNDWI)分别从遥感影像中提取不透水面、植被和水体;然后从时间、空间角度并采用回归分析方法分析了上海市地表参数在这9 a中发生的变化及其对城市热环境造成的影响。结果表明:9 a中城市不透水面面积大幅增加,不透水面增加的代价是植被和水体大范围减少,形成了城市的热岛。上海市整体热岛强度是先增强后缓慢减弱的趋势,且热岛分布从集中型向分散型发展。

关键词: 城市热岛热红外不透水面上海市    
Abstract:

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.

Key words: Urban heat island    Infrared    Impervious surface    Shanghai
收稿日期: 2011-10-24 出版日期: 2012-10-17
:  TP 79  
基金资助:

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)。

作者简介: 刘文渊(1988-),女,江西高安人,硕士研究生,主要从事微波遥感、射频电路等方面的研究。Email:niannianchong@shu.edu.cn。
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引用本文:

刘文渊,谢亚楠,万智龙,郑 和. 不同地表参数变化的上海市热岛效应时空分析[J]. 遥感技术与应用, 2012, 27(5): 797-803.

Liu Wenyuan,Xie Yanan,Wan Zhilong,Zheng He. Analysis on Urban Heat Island Effect of the Different Dynamics of Urban Surface Biophysical Descriptors in Shanghai City. Remote Sensing Technology and Application, 2012, 27(5): 797-803.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2012.5.797        http://www.rsta.ac.cn/CN/Y2012/V27/I5/797

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