Detection of the Change in Land cover and Land Surface Temperature of Dhaka District from 1989 to 2019

Abstract

This study investigates the changing of land cover (LC) and land surface temperature (LST) in Dhaka city over a span of three decades .Utilizing satellite images and remote sensing techniques, the temporal evolution of various land cover types, including built-up areas, vegetation, water bodies, and bare soil were mapped.The findings indicate a significant increase in built-up areas, accompanied by a decline in vegetation and water bodies.This transformation has led to an observable rise in LST, particularly in densely urbanized zones.The correlation analysis revealed a strong inverse relationship between vegetation cover and LST, emphasizing the cooling effect of green spaces and water bodies as well as the warming effect of dense urban areas.The study underscores the importance of proper urban planning and green infrastructure in mitigating the urban heat island effect and enhancing the livability of Dhaka city.The insights derived from this research can guide policymakers in sustainable urban development and climate adaptation strategies.