تبیین رابطه جزایر حرارتی شهری و تعدادی از عوامل مورفولوژی شهر با استفاده از سنجش از دور و سامانه اطلاعات جغرافیایی (مطالعه موردی: شهر اهواز)

In this research, land use map was prepared by maximum likelihood method in ۸ areas of Ahvaz city and altitude and slope maps were prepared. To evaluate the classification accuracy of the land use map, the error of the classified image was compared with a reference image containing a number of ground control points. The map of urban thermal islands was prepared using a separate window algorithm on the Landsat ۸ satellite data set in the ENVI software environment. The results showed that the prepared land use map has an kappa coefficient of ۸۶% and good accuracy and credit. The relationship between land use and thermal islands, the results indicate that the eight cities of Ahvaz with an average temperature of ۴۳.۳ and the fourth region with an average temperature of ۳۲.۶ had the highest and lowest temperatures, respectively. By comparing the percentage of land use classes in the eight and four districts of Ahvaz, it can be said that industrial land use will increase the average temperature of urban areas and space land use will reduce the average temperature of urban areas. Areas with a slope of zero to ۱.۵ percent have an average temperature of ۳۴ degrees and areas with a slope of ۱۰ to ۳۷ percent have an average temperature of ۴۱ degrees Celsius. In urban areas with altitudes below sea level and urban areas with an altitude of ۶۴ to ۸۰ meters above sea level, the average temperature is ۳۴ and ۴۱ degrees Celsius, respectively.

کلیدواژه ها:

مورفولوژی شهری ، جزایر حرارتی ، سامانه اطلاعات جغرافیایی (GIS) ، سنجش از دور (RS) ، اهواز