Shyamal Borah and Karishma Sarma
Abstract
The urban heat island (UHI) effect is a type of heat buildup in urban areas due to urban building and human activity. It is regarded as the most obvious feature of metropolitan climate. The increase in land surface temperature caused by the UHI effect will undoubtedly influence material flow and energy flow in urban ecological systems, as well as alter their structure and functions, resulting in a variety of ecological and environmental effects on urban climates, urban hydrologic situations, soil properties, atmospheric environment, biological habits, material cycles, energy metabolism, and residentsâ health. UHI impacts might be considerably reduced by improving energy efficiency, optimizing urban landscapes, building green roofs, using high-reflectivity materials, and cultivating green land. Guwahati, which has been shaped into a thriving metropolis, is now actually feeling the heat. According to environmental specialists, Guwahati has become an Urban Heat Island (UHI) due to unplanned concrete expansion, reduced green cover, wetlands filling up, and large-scale population concentration. In this work, we will use geospatial approaches to analyze the temporal fluctuation of land surface temperature and urban heat island in Guwahati City between 1994 and 2024, with an interval of 10 years.