Classification Based on Spectral Characterization and Analysis of Land Cover Change in Dhaka

This study focuses on the temporally evolving geo-environmental characteristics of Dhaka. Dhaka is located at the center of Bangladesh. In the last few decades, it has undergone rapid development in terms of infrastructure and economy. The land use pattern in Dhaka is not the same as it had been previously. The focus has been to analyze the changes that have occurred in Dhaka, which consists of six smaller cities inside it. Using remote sensing techniques and various satellite images, the objects are classified into different categories. Multi spectral characteristics and spectral response patterns are analyzed and studied. Using the information extracted across different decades, changes in land use have been derived. Furthermore, changes in different features e.g. built up, crops, water bodies etc. are analyzed and studied across years to factor out the zones that are experiencing recent urban growth. This generalized pattern of urban growth can be a valuable finding for urban planning and policy for the government of Bangladesh.