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With the development of urbanization, urban environmental problems faced by the people more and more serious. Caused by the urban heat island effect due to the city's environmental thermal pollution problems as well as the change of the urban surface and the urban environment has become an urgent problem. The experts at home and abroad in recent decades, from the micro or macro level on the causes of the urban heat island effect, caused by the impact of the variation, and mitigation measures carried out a series of research and exploration. Traditional research methods and more precise but time-consuming and labor-intensive, has been unable to meet the requirements of today's urban heat island meteorological data through the use of ground-based observatories to study the changes of urban thermal environment, the data obtained by this approach. Wide range of remote sensing technology to use so that people can be a large area, synchronization, and dynamic monitoring of ground thermal field distribution and changes, so it has become a contemporary urban heat island research methods and means. In this paper, Zhengzhou City, for example, the use of Landsat thermal infrared band of the United States to study in Zhengzhou city on May 14, 1988 TM sensor remote sensing images and May 10, 2001, ETM sensor remote sensing images and the meteorological data in Zhengzhou City . This paper introduced the heat island effect in the course of development of the research as a starting point, mainly describes the research background and research significance of this study, the specific routes, and then analyzes the causes of the heat island effect by analyzing the impact of elements of the urban heat island effect. The article describes the concept of image preprocessing steps, the part of the main study information processing. Then by Miss temperature inversion method derive a set of relatively simple land surface temperature inversion method, surface emissivity, the average atmospheric effects of temperature and atmospheric transmittance calculating Zhengzhou City several representative pixel inversion temperature and produced the land temperature classification and grading Figure, which is the core part of this article. Finally, this paper through the combination of Zhengzhou City, the land surface temperature inversion on maps, type of land use classification map and the normalized difference vegetation index analysis chart trend of Zhengzhou City, the heat island effect, and to explore the reasons for the evolution of the heat island, and then proposed to ease effective measures of Zhengzhou City, the urban heat island effect, the extended part of this study.
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