10. APPLICATION OF LANDSAT-9 SATELLITE IMAGERY DATA ON THE GOOGLE EARTH ENGINE PLATFORM TO ASSESS THE LEVEL OF LST VARIATION IN THANH HOA CITY

Tóm tắt

The phenomenon of Urban Heat Island (UHI) is a significant environmental issue that affects human health, air quality, and the quality of life for urban residents. This study uses Landsat-9 satellite imagery data to analyze the UHI phenomenon in the Thanh Hoa urban area during the Summer and Winter of 2024 - 2025. The Land Surface Temperature (LST) data from Landsat-9 were processed to determine the extent and magnitude of the urban heat island, while also investigating the relationship between factors such as building density, greenery, and land use types on the formation of UHI. The study found that the UHI in summer was 5.28 °C and in winter was 2.92 °C. Additionally, the results show the difference in LSTs between summer and winter. The research findings will provide deep insights into the impact of urbanization on the urban climate environment and propose solutions to mitigate the UHI effect in the Thanh Hoa urban area during the 2024-2025 period.