GIS And Remote Sensing Based Morphometric Analysis of the Dadi River Watershed, Amravati Taluka, Amravati District, Maharashtra, India

Morphometric analysis provides a quantitative understanding of the drainage characteristics, basin geometry, relief, and hydrological behaviour of a river basin. The present study focuses on the morphometric assessment of the Dadi River Watershed in Amravati Taluka, Amravati District, Maharashtra, India, using Remote Sensing and Geographic Information System (GIS) techniques. The drainage network and basin characteristics were delineated using CartoSat-1 PAN CartoDEM (30 m spatial resolution) data and analysed in a GIS environment. Various morphometric parameters representing linear, areal, and relief aspects were calculated to understand the structural and physiographic characteristics of the watershed. The Dadi River Watershed exhibits a dendritic to sub-dendritic drainage pattern with a maximum stream order of 5, suggesting that the drainage network may reflect the influence of the watershed’s lithological and structural setting. First-order streams constitute approximately 80.13% of the total stream network. The mean bifurcation ratio of 4.54 suggests that the drainage network may not be strongly influenced by geological structural disturbances. The drainage density and stream frequency are 3.39 km/km² and 7.76 streams/km², respectively, indicating a moderately developed drainage network. The elongation ratio, circularity ratio, and form factor are 0.70, 0.46, and 0.39, respectively, indicating an elongated to irregular basin shape. The relief analysis indicates an elevation difference of 108.57 m across the watershed, reflecting variations in terrain elevation. The results demonstrate that GIS and Remote Sensing techniques provide an effective approach for evaluating the morphometric characteristics of the Dadi River Watershed. The findings can support watershed planning, groundwater and surface-water resource management, soil conservation, and sustainable development of the watershed.

Morphometric Analysis, GIS, Remote Sensing, Stream Network, Dadi River Watershed

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