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Remote Sensing Technology and Application  2006, Vol. 21 Issue (6): 488-492    DOI: 10.11873/j.issn.1004-0323.2006.6.488
article     
Time-Space Character Analysis of Urban Heat Island Effect in Nanjing City Using Remote Sensing
YANG Ying-bao1, SU Wei-zhong2, 3, JIANG Nan2
(1. Department of Geomatics of Hohai University , Nanjing 210098, China; 2. Department of Urban and Resources Science, Nanjing University, Nanjing 210093, China; 3. Nanjing Institute of Geography and Limnology , The Chinese Academy of Sciences, Nanjing 210008, China)
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Abstract  

Urban heat island effect is the typical representation of urbanization impacts on urban climate.The urban heatisland has different time and spatial characteristics for a different urban because of different urbanization level,essence, size and nature condition. The paper analyzes the time and space characteristics of Nanjing city combing high space-resolution Landsat TM with high time-resolution MODIS. This paper analyzes daily characteristics of UCL heat island by eight granule MODIS, seasonal characteristics by sixteen granule MODIS and probes the scale effect of UCL heat island. The diurnal urban heat island intensity is stronger than over nigh t’s. The strongest intensity of urban heat island happens on autumn,the second on summer, the third on spring, the last on winter. Themost extensive in scope occurs in summer, the second in autumn, the third in spring, the last in winter. There are three continuous and extensive heat islands in Naning city. The largest area heat island takes on clustere shape, distributing both the riversides of Qinhuai River. The second is the lineal shape along Rehe Road, Jiangn in Road, Longpan Road, Hongshan Road and Heyan Road. The third presents zonal shape and distributes the industry land use in Dachang district and Pukou district. The intensity and scope of urban heat island result s are different with different remote scale. The intensity and scope of urban heat island in Naning city respectively using TM and MODIS on April 17, 2000 and the scope and intensity using TM are all lager than that using MODIS.

Key words:  Urban heat island effect      Time-space character      Remote sensing     
Received:  12 January 2006      Published:  27 September 2011
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Cite this article: 

YANG Ying-bao, SU Wei-zhong, JIANG Nan. Time-Space Character Analysis of Urban Heat Island Effect in Nanjing City Using Remote Sensing. Remote Sensing Technology and Application, 2006, 21(6): 488-492.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2006.6.488     OR     http://www.rsta.ac.cn/EN/Y2006/V21/I6/488


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