The Dynamics of Land Surface Temperature Changes in Padang City: A Temporal Study from 2016 to 2024

Abstract

Population growth and economic development in Padang City have led to increased land use, impacting changes in land surface temperature. This study aims to analyze the spatial distribution of land surface temperature in Padang City using a quantitative descriptive method. The data utilized consists of Landsat 8 satellite imagery from 2016 to 2024 with a two-year interval. Surface temperature values were derived from processing the thermal bands of satellite imagery and identified through an overlay with the administrative boundaries of Padang City.The results indicate that built-up areas tend to have higher surface temperatures compared to regions with dense vegetation cover. Nearly the entire western part of Padang City has experienced a significant temperature increase, particularly in highly populated areas such as Padang Barat, Padang Timur, and Padang Utara. Meanwhile, lower-temperature regions are still found in the eastern part, particularly in Pauh District and its surroundings, which still retain substantial green land cover. These findings suggest the presence of an Urban Heat Island (UHI) effect due to reduced vegetation and an increase in built-up areas.