TEMPERATURE MAPPING AND SUSTAINABLE DEVELOPMENT IN ILORIN METROPOLIS

Abstract

Temperature mapping makes up part of every nation's geospatial data infrastructure and a tool for sustainable development. An isothermal map (temperature map) creates an understanding of the variation of temperature of an area and the effect of urban heat island (UHI). This study examines temperature mapping within the context of sustainable

- development in Ilorin metropolis from a geospatial perspective. The primary data of minimum and maximum temperature from the digital and the minimum and maximum thermometer for the period of four months (April, May, June and July, 2015) were collected, the duration covered both the dry and wet seasons. On the other hand, satellite imagery and other maps were used as part of the secondary data for the purpose of mapping the temperature of Ilorin metropolis. For this study, the ordinary kriging method was used. The classification scheme used was Equal Interval in order to showcase the natural distribution of values as bulk of values will fall under different colour zone, and this in turn highlight extreme values into characteristic colours for ease of identification. Seven classes were used to illuminate the difference in values. The study shows the spatio-temporal variation of temperature in the study area, the core areas are characterized with increased temperature. However, the isothermal map serve as a tool and a pointer to the government, geographers, and the general public so as attain the city growth and sustainable development