Spatiotemporal dynamics of urban landscape in Asansol municipal corporation, West Bengal, India: a geospatial analysis
2022
Māiti, Biśvajit̲a | Mallick, Suraj Kumar | Rudra, Somnath
The spatiotemporal characteristics and driving factors of regional land use have a pivotal role in suitable and sustainable urban development. In this study various multi-temporal satellite imageries i.e. LANDSAT TM (1991, 2008) and OLI (2018) were used to analyse the land use/land cover (LULC) change, land transformation, urban expansion, growth direction, and urban sprawl to understand the nature of built-up area growth in Asansol Municipal Corporation (AMC), West Bengal. Seven categories of land class have been categorized using the Gaussian maximum likelihood classifier algorithm and resulted in values putting into the transitional probability matrix to show the change detection of each land class. The annual built-up area intensity index and directional expansion of the built-up area during 1991–2018 have been calculated to show the changing rate of the built-up area with direction. The result indicates that the built-up area has drastically increased from 12.54 to 33.87% from 1991 to 2018 expanding towards the southwest direction and other land classes have a decreasing trend. Finally, this study concludes that the least amount of vegetation cover and industry-based urban expansion of this urban area might be a threat to become an urban heat island in the future. So, urban planners and researchers should have to take proper planning for urban expansion and try to increase urban green infrastructure for a sustainable urban future.
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