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Influence of Impervious Surface on Land Surface Temperature

Author: LiuHanHai
Tutor: QianLeXiang
School: Henan University
Course: Cartography and Geographic Information Systems
Keywords: Non - permeable surfaces Surface temperature Inversion Zhengzhou
CLC: P423.7
Type: Master's thesis
Year: 2007
Downloads: 168
Quote: 4
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Abstract


Non-permeable surfaces (Impervious Surface), also known as impervious surface, is an important part of the urban composition. With the rapid development of urbanization, the abundance of non-permeable surfaces will change, even threatened to bring a series of problems. Surface temperature (Land Surface Temperature) is the study of the important parameters of the exchange of material and energy exchange between the surface and the atmosphere, is a key regional and global scale, the Earth's surface physical process parameters, is also an important indicator of the earth resources monitoring and surface ecological environment system research , has a very important role in the climate, hydrology, ecology, environment, military. Domestic non-permeable surfaces is also relatively small, and abroad focused on its impact on the underlying surface, such as the formation of a rainstorm drainage problems, affecting the basin's water quantity and quality, leading to rising summer temperatures affect energy balance and micro climate, destruction of land and water habitat, natural scenery, landscape and causing the degradation of the living environment, the loss, such as broken. Domestic and international surface temperature inversion algorithm is already quite mature, but combined with the non-permeable surfaces to study the relationship between the two is almost blank. This thesis, as the study area in Zhengzhou, Landsat TM / ETM data as the main data source, and other geographic data, supplemented by data source, the first use of the normalized linear spectral mixture analysis model to generate the image of the proportion of each endmember 1988/2001 two periods of non-penetration of the surface abundance images resulting surface temperature inversion Zhengzhou, followed by thermal infrared bands of Landsat TM / ETM data, the use of single-window algorithm, 1988/2001 two-period surface temperature images, and then analyze the non- to penetrate the surface abundance of surface temperature relationship, and finally the conclusion: non-penetration of the surface abundance of surface temperature was positively correlated, but the correlation coefficient is lower; non-penetration effect on the surface temperature on the surface, but the relationship is not clear, it is difficult to express with mathematical models . This thesis is divided into six parts: the first part of the introduction, clear the concept of non-permeable surfaces and surface temperature, discusses the status quo of domestic and international non-penetration the surface extraction applications and surface temperature inversion. The second section describes the study area, and the pre-processing of remote sensing images, change the pixel spatial resolution, the image pixel values ??into the top of the atmosphere reflectance. The third part introduces the non-penetration of the extraction of the surface abundance. Endmember selection and extraction is the focus of this chapter, and choose to extract endmember use the normalized linear spectral mixture analysis model decomposition of mixed pixels generated each end of the proportion of the image, so as to get the image of a non-permeable surface abundance . The fourth part focuses on surface temperature inversion. This chapter systematically expounded the principles and methods of use of thermal infrared remote sensing inversion of surface temperatures, especially for Landsat data inversion algorithm. Single-window algorithm parameters required to obtain is the focus of this chapter, the study area, the use of a single-window algorithm 1988 and 2001, two periods Zhengzhou surface temperature inversion. The fifth part of the focus of the analysis of non-permeable surfaces surface temperature. Through analysis showed that non-penetration effect on the surface temperature on the surface, but the relationship is not clear; non-penetration of the surface and the surface temperature was positively correlated, but the correlation is weak, the correlation coefficient between 1988 0.416456, correlation is not strong; 2001 two by a correlation coefficient of 0.157147/0.158316, the less correlation. Part VI of the paper work done with a simple review and summarize, and pointed out that one of the inadequacies and problems to be further explored thinking.

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CLC: > Astronomy,Earth Sciences > Atmospheric science (meteorology ) > Meteorological elements,atmospheric phenomenon > Atmospheric temperature > Earth's surface temperature
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