In order to develop countermeasures to thermal environmental problems in urban areas, it is important that the thermal properties of the Earth's surface, such as albedo, evaporative ratio, thermal conductivity and heat capacity, are specified. It is possible to determine these properties indirectly from land cover ratios. In this paper, a method of estimating land cover ratios is studied by using remote sensing data (LANDSAT MMS). Several methods have already been applied to estimate the green area ratio. However, land cover ratios that include not only the ratio of green but also the ratio of water surface and other land cover, such as bare earth, pavements and buildings, are needed for the purpose of this research. A multiple regression method is applied here. An advantage of this method is that it is independent of the resolution of the remote sensing data. The results of this estimation method are discussed here. ?? 1990.
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