Open AccessAnalysis of urban heat island intensity using multi temporal landsat data; case study of Kendari City, Indonesia
Author(s) -
Armayanti Aris,
Hasbullah Syaf,
Dewi Nurhayati Yusuf,
Nurgiantoro
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/389/1/012002
Subject(s) - urban heat island , normalized difference vegetation index , environmental science , intensity (physics) , urbanization , vegetation (pathology) , brightness temperature , land cover , remote sensing , physical geography , climatology , land use , meteorology , geography , climate change , brightness , geology , civil engineering , engineering , economic growth , economics , medicine , oceanography , physics , pathology , quantum mechanics , optics
The urban air temperature has gradually increased in almost all cities in the world, including Kendari City. This is indicated by the increase in building materials and reduced vegetation biomass in urban areas that have consequences of increasing surface temperatures and forming a micro-climate phenomenon called urban heat island (UHI). The aim of this study is to analyse of UHI intensity in Kendari region for the periods 2001-2014-2019, based on the distribution of land surface temperature (LST), which was analysed through thermal infrared (TIRS) and operational land imager (OLI) sensors onboard Landsat-7 and Landsat-8, each image has an atmospheric correction and brightness temperature. The results show the intensity of UHI during the 2001 to 2014 period increased by 2.44 °C, while in 2019 the intensity decreased by 2.27 °C from the previous period. These fluctuations are closely related to the land cover (LC) changes especially in built-up areas, vegetation, and bare soil as the effects of the urbanization process, and parameters of the normalized difference vegetation index (NDVI).