City expansion and urban heat island in Bogor

Abstract

Bogor is a satellite city of Jakarta Metropolitan that experience rapid population growth and urban development. Urban landscape change for urban development affects the city expansion, development of urban heat island (UHI), and the increasing of land surface temperature (LST). The objectives of this study are to analyze the urban landscape changein1990 and 2017, to analyze the LST change caused by city expansion, and to analyze the development of the UHI phenomenon. We used Local Climate Zone (LCZ) which is a classification system of urban surfaces. In LCZ classification, we used three categories in built-up area, three categories in vegetated area, bare soil, and water. Landsat 5 TM in 1990and Landsat 8 OLI/TIRS in 2017 were used in this study. In 1990, the urbanized area was 9.38% and the vegetated area was 83.98%. The urbanized area continuously increased and become 27.24% in 2017 and the vegetated area decreased to 58.85% in 2017. By the comparison of LST in 1990 and2017, the areas that show high LST is increased. As the result of the analysis, the changes from non-urban to urban surface highly affected the UHI in Bogor City through the rise of LST.