GIS-BASED URBAN HEAT ISLAND MAPPING AND MITIGATION STRATEGIES FOR RAPIDLY GROWING CITIES

Abstract

Urban Heat Islands (UHIs) are intensifying due to rapid urbanization, reduced vegetation, and high surface heat retention. This study applies Geographic Information Systems (GIS) and remote-sensing–based Land Surface Temperature (LST) analysis to map UHI intensity in fast-growing metropolitan cities. Using multi-temporal satellite imagery, NDVI classification, built-up density indexing, and supervised land-use classification, the paper identifies UHI hotspots and evaluates mitigation strategies such as cool roofs, green corridors, water-sensitive urban design, and reflective pavements. The findings demonstrate that GIS-based UHI mapping provides essential spatial insights for policymakers and urban planners.