Acta Geographica Sinica ›› 2005, Vol. 60 ›› Issue (5): 761-770.doi: 10.11821/xb200505007

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Influence of Land Cover Change on Land Surface Temperature in Zhujiang Delta

QIAN Lexiang1,2, DING Shengyan2   

  1. 1. School of Geographical Sciences, Guangzhou University, Guangzhou 510405, China;
    2. College of Environment & Planning, Henan University, Kaifeng 475001, China
  • Received:2005-03-22 Revised:2005-06-15 Online:2005-09-25 Published:2005-09-25
  • Supported by:

    Henan Innovation Talents Fund for University; Guangzhou University Scientific Research Fund for Person with Ability Indraught

Abstract:

The Zhujiang Delta has experienced a rapid land cover change, especially urban expansion over the past 25 years due to accelerated economic growth. This paper reports an investigation into the application of the integration of remote sensing and geographic information systems (GIS) for detecting land cover change and urban growth, and assessing their impact on land surface temperature in the region. Remote sensing techniques were used to carry out land use/cover change detection by using multitemporal Landsat TM/ETM data, and retrieve out the land surface temperature by using single Landsat TM/ETM 6 thermal infrared data. The integration of remote sensing and GIS was further applied to examine the impact of land cover change and urban growth on land surface temperatures. The results revealed a notable and uneven urban growth in the study area. This urban development has raised land surface radiant temperature by 8.9K in the urbanized area. The integration of remote sensing and GIS was found to be effective in monitoring and analyzing urban growth patterns, and in evaluating urbanization impact on land surface temperature.

Key words: land cover change, land surface temperature, Zhujiang Delta, Landsat TM/ETM