Paper Title
Green Spaces Conversion in Bangkok, Thailand

Abstract
Bangkok has been rapidly urbanization in the past few years, because of the green space conversion to other land use, it results in increasing of land surface temperatures and air temperatures in the city. This research investigated green space conversion and land surface temperature (LST) comparison in the past 10 years of 2013 – 2022. Land cover types and LST were classified and extracted using the satellite image data of Bangkok which collected from LANDSAT-8. Green space in 2022 was increasing from 2013 with 8.72% and 219.28 km2 of green space has been lost or converted to other land use. The average LST in 2013 was in the range of 31 – 34 degrees Celsius and LST were lower in the southern and eastern edges of the city. In 2022, the average LST was in the range of 34 – 37 degrees Celsius which spread across the city. The Bangkok edges have reached higher temperatures than ever. Our results indicated that green spaces can be effective in mitigate heat in the city when the green space is in properly amount. Finally, this would be more efficient if green spaces could be used for sustainable urban planning adaptation. Keywords - Conversion, Green Space, Land Surface Temperature (LST), Urbanization, Urban Heat Island (UHI)