Urban Heat Islands analysis towards topographic based land use change and daily commute effect along the Kaliurang Street in Yogyakarta

This paper's aim is to analyse the correlation between land change pattern and its topography with Urban Heat Islands (UHI) in Kaliurang Street and surrounding area. Secondly, the effects of daily commuting activities from rural or sub urban area towards urban area are well identified. Kaliurang Street is one of the major streets in Sleman that uniquely represented the transition between rural, suburban, and urban area. Rural area is located in the furthest north, suburban located in the center, while the urban area is located in the southern part. Transect method carried out along Kaliurang Street to obtain primary data mainly temperature and vehicles number. Data collected during daytime (between 12-2 PM) and afternoon (between 3 to 5 PM). Furthermore, LANDSAT 8 OLI/TIRS satellite imagery was analyzed to obtain the Land Surface Temperature (LST) Information, while ALOS PALSAR was analyzed to obtain elevation data. One of the causes of temperature differences is the commuting which affects the variation of surface temperature along Kaliurang Street. Therefore, strong correlation between commuting and the UHI phenomenon are expected.