Author : Tofan Agung Eka Prasetya*, Sarawuth Chesoh, Apiradee Lim, Donald Roy McNeil
Land surface temperature (LST) is one of the important factors in the physics of land surface processes to ensure about temperature change in environment. Sumatra was one of the biggest islands in Indonesia that suffering from deforestation. The objective of this study was to investigate LST trend in Sumatra Island from 2000-2018. LST-day data for each super region of Sumatra island was analyze with cubic spline to see seasonal pattern. Daily seasonal pattern for LST-day (°C) was not so many variations. The highest LST-day in all area of region 25 super region 1 happened between day 229 and day 267. LST-day was increased in the beginning of year and decreased at the end of the year. The other findings indicate that on a decade 28.2% of all Sumatera surface had been increasing, 35.6% decreasing, 36.3% stable. Key words: Land Surface Temperature, Environment, Sumatra, Cubic Spline.
Dr. Arend L Mapanawang, Sp.PD, FINASIM, PhD