In this study, it was shown that the applied usage of the geographical information and a mapping method of multi-temporal earth surface temperature distributions for wider city area, and it was compared with Landsat IR data. First, earth surface temperatures were measured severally by portable infrared thermometer to set measured times to the overpass time of Landsat. Variations of surface temperatures for 24 hours at intervals of one hour in. summer days were drawn. Land use index was corresponded with its land cover, and applied measured surface temperatures to land use data. So earth surface temperature distribution maps were drawn. Next, map by using Landsat data was compared with one by using geographical information, and effectualness was investigated.
