Surface temperature Across Land-use Change Phenomena in Padang, Indonesia

Abstract

Intensive anthropogenic activities encourage drastic land-use changes. The changes in land cover, from vegetation to non-vegetation, have the potential to increase heat emissions from the land surface and the atmospheric temperature. A study concerning these aspects is worth conducting in Padang, a city in Indonesia with high land-use changes (1-5 % per year), regarding that this country has controversial issues related to land-use change. In this study, we use the method Land Surface Temperature to examine the surface temperature change in Padang, Indonesia, and assess its relation to the land-use change. Landsat Satellite Imagery was obtained from USGS, through a data mining process meant to help us gather spatial and temporal data for the period 2010-2019. The results show that the city of Padang has experienced an increase of 0.4°C/year in the land surface temperature, whereas the air temperature has increased with 0.01 0C/year. It reveals per 100 hectares change in land-use it potentially raising 0.06°C and 0.006 °C in land surface and air temperature, respectively. These conclusions improve our understanding of the effects that land-use change has on the spatial and temporal surface temperature in the city.