Abstract
In recent years, rapid urbanization and population growth have led to an overload of waste in big cities. High landfill surface temperature is an important factor causing serious environmental pollution due to speeding up the generation of biogas. This paper presents the results of assessment of land surface temperature distribution in some large landfills in Vietnam, including Nam Son landfill (Hanoi) and Da Phuoc landfill (Ho Chi Minh city). Landsat 8 satellite image data is used to calculate land surface temperatures based on the split-window method. The results showed that the landfill surface temperature was much higher than the surrounding area, even compared to the areas characterized by impervious surfaces. The difference between the highest surface temperature in Nam Son, Da Phuoc landfills and the lowest surface temperature in the surrounding area is about 20ºC. The results obtained in this study provide input information to develop monitoring models of pollution at landfills.
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