Font Size:
The effect of vegetation index to the land surface temperature in South Badung Regency, Bali Province
Last modified: 2022-12-22
Abstract
Land surface temperature is one of the important parameters of the energy balance system on earth. The land surface temperature reflects the temperature conditions between the land surface and the atmosphere, which vary in each region. Changes in land surface temperature can be caused by land conversion, including vegetated land. The purpose of this study is to determine how changes in vegetation density affect land surface temperatures, using the vegetation index approach, namely NDVI and EVI. This research utilizes remote sensing technology and GIS using Landsat 7 ETM+ satellite imagery in 2003 and Landsat 8 OLI-TIRS in 2015 and 2020, to obtain values of vegetation density and land surface temperature which were carried out field checks and analyzed spatio-temporal. The results of this study indicate that the change in vegetation density is not significant to ESG in South Badung Regency, as can be seen from the R2 value which is far from 1. However, there is a negative relationship between vegetation density and LST in each year. This means that the greater the value of vegetation density, the smaller the value of the LST. These results indicate that changes in land surface temperature in South Badung Regency are heavily influenced by other variables, such as the number and activities of the population, urban structure, land use, rainfall, and seasons.