SEASONAL URBAN HEAT ISLAND OBSERVATION USING REMOTE SENSING AND GOOGLE EARTH ENGINE IN THE NEW CAPITAL OF INDONESIA

The relocation of the Indonesian capital from Jakarta to new city Indonesia (IKN) in East Kalimantan will affect several sectors, including land use, which cause urban heat island (UHI) phenomenon. This study aimed analyze UHI IKN and its buffer cities (Balikpapan, Samarinda, Bontang). analysis was conducted on a seasonal basis, with 5 years 2001 2020, using Terra-MODIS satellite data processed by Google Earth Engine. results show that threshold for all seasons increased successively 2020. Low moderate temperatures were water bodies vegetation (non-urban), while high very occurred center surroundings. is highest September, October, November, lowest June, July, August. In seasons, non-urban area decreased tended expand. found both spatially temporally throughout season, has not IKN. Latitudinal longitudinal cross-sectional showed 2015–2020 surface December, January, February Balikpapan City (36.84℃), Samarinda (36.13℃), Bontang (32.3℃), zero point (28.82℃). helpful policymakers planners development, especially Keywords: , Land Surface Temperature, Urban Heat Island, Buffer Cities, Remote Sensing DOI： https://doi.org/10.35741/issn.0258-2724.58.4.88