Author(s): Dr. Bipul Chakraborty¹, Tanoy Chowdhury²

Abstract:

The present study examines the digital integration of geological and geographical mapping using Remote Sensing and Geographic Information Systems (GIS) to analyze spatio-temporal landform dynamics and hazard-prone zones in Nadia District, West Bengal, India. The study focuses on selected areas of Ranaghat, Chakdaha, Santipur, Bagula, and Krishnanagar, which are located within an active alluvial floodplain influenced by the Bhagirathi–Hooghly river system. Multi-source spatial datasets, including satellite imagery, digital elevation models, and Geological Survey of India lithological maps, were integrated within a GIS framework to generate innovative cartographic outputs such as geological cross-profiles, block diagrams, and hazard zonation maps.

Spatio-temporal analysis reveals that unconsolidated alluvial sediments, shallow subsurface clay layers, and low terrain gradients play a critical role in controlling erosion, flooding, and landform instability across the study area. Active fluvial processes, including channel migration and sediment deposition, significantly influence present landform dynamics and hazard distribution. The findings demonstrate a strong spatial association between geological structure, surface morphology, and environmental processes, highlighting the effectiveness of GIS-based approaches over conventional mapping methods. The study concludes that Remote Sensing and GIS provide a comprehensive and reliable framework for regional geological mapping, hazard assessment, and land-use planning in flood-prone alluvial regions such as Nadia District.

Keywords:

Remote Sensing; Geographic Information System (GIS); Geological Mapping; Spatio-Temporal Analysis; Fluvial Processes; Hazard Zonation; Nadia District; West Bengal.

DOI: 10.61165/sk.publisher.v13i2.2

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Digital Integration of Geological and Geographical Mapping: Cartographic Innovation and Spatio-Temporal Analysis of the Geological Time Scale Using Remote Sensing and GIS in Nadia District, West Bengal, India

Pages:12-28