Mapping and Assessing Landfills Surface Temperature Using Landsat 8 Satellite Data. A Case Study in Vietnam.

In recent years, rapid urbanization and population growth have led to an overload of waste in big cities of Vietnam. Waste decomposition is always associated with the effects of heat generation as a result of the continuous aerobic and anaerobic processes, resulting in landfill surface temperature is significantly higher than the surrounding area. This paper presents the results of assessment of land surface temperature distribution in two largest landfills in Vietnam, including Nam Son landfill (Hanoi city, northern Vietnam) and Da Phuoc landfill (Ho Chi Minh city, southern Vietnam). 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 landfill surface temperature and temperature in areas covered by vegetation was about 20°C. The results obtained in this study provide input information to develop monitoring models of pollution at landfills. [ABSTRACT FROM AUTHOR]