Detection of environmental change through geospatial techniques in Barisha, Thakurpukur area under Kolkata Municipal Corporation: A study on ward number 124 under Kolkata Municipal Corporation, West Bengal, India

The most important measure of a region’s economic progress can be studied through Land use and land cover change (LULC). Through LULC change how over time human behaviour of that particular place has changed can be studied very accurately. The study aims to detect and analyse the land cover and land-use change of ward number 124 under Kolkata Municipal Corporation. The area has been subjected to extremities of urbanisation owing to greater connectivity through introduction of metro railways. LULC change was studied in the satellite imageries for the years 1991, 2006 and 2020. Normalised Difference Vegetation Index was calculated to study the spatio-temporal urban footprint. Accuracy assessment and Kappa index was also calculated to show the magnitude of urban footprint over the years in the area. LULC change shows that there is a substantial increase in the built up area over the years at the cost of vegetation and water-bodies.