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首页> 外文期刊>International Journal of Environmental Research and Public Health >Cooling Effect of Rivers on Metropolitan Taipei Using Remote Sensing
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Cooling Effect of Rivers on Metropolitan Taipei Using Remote Sensing

机译:遥感对台北大都会河流的降温作用

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This study applied remote sensing technology to analyze how rivers in the urban environment affect the surface temperature of their ambient areas. While surface meteorological stations can supply accurate data points in the city, remote sensing can provide such data in a two-dimensional (2-D) manner. The goal of this paper is to apply the remote sensing technique to further our understanding of the relationship between the surface temperature and rivers in urban areas. The 2-D surface temperature data was retrieved from Landsat-7 thermal infrared images, while data collected by Formosat-2 was used to categorize the land uses in the urban area. The land surface temperature distribution is simulated by a sigmoid function with nonlinear regression analysis. Combining the aforementioned data, the range of effect on the surface temperature from rivers can be derived. With the remote sensing data collected for the Taipei Metropolitan area, factors affecting the surface temperature were explored. It indicated that the effect on the developed area was less significant than on the ambient nature zone; moreover, the size of the buffer zone between the river and city, such as the wetlands or flood plain, was found to correlate with the affected distance of the river surface temperature.
机译:这项研究应用遥感技术来分析城市环境中的河流如何影响其周围地区的地表温度。地面气象站可以提供城市中的准确数据点,而遥感可以以二维(2-D)方式提供此类数据。本文的目的是应用遥感技术来进一步了解城市地表温度与河流之间的关系。从Landsat-7热红外图像中检索了二维表面温度数据,而由Formosat-2收集的数据则用于对市区内的土地使用进行分类。地表温度分布通过S型函数进行非线性回归分析。结合上述数据,可以得出河流对地表温度的影响范围。利用台北市区的遥感数据,探讨了影响地表温度的因素。结果表明,对发达地区的影响不如对周围自然带的影响大。此外,发现河流和城市之间的缓冲带(如湿地或洪泛区)的大小与受影响的河流表面温度距离有关。

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