Hydrological and Morphometric Study of the Girna River Basin, Maharashtra Using Remote Sensing and GIS Techniques (original) (raw)

The present study aims to conduct a morphometric analysis of the Girna River Basin watershed, a tributary of the Tapi River in Maharashtra, India. A detailed morphometry analysis was performed using remote sensing and GIS using a Digital Elevation Model (Aster DEM) and SOI toposheets, and various drainage basin parameters such as Linear, Areal, and Relief aspects were also calculated. The Girna River Basin comprises 2,137 streams and has 6th order stream networks, in which 1,071, 526, 261, 125, 107, and 47 are the first-, second-, third-, fourth-, fifth-, and sixth-order streams, respectively. The Girna River Basin is 6th order stream with a circular shape, dendritic pattern, coarse drainage texture, and longer flow duration in lower areas. The bifurcation ratio lies between 1 and 2, indicating that the geological structure does not have a significant impact on the drainage patterns. The present study indicates various parameters of the Girna River Basin, which indicates that the basin has a high slope in the northwestern part, whereas most of the area has a low slope angle and a very low gradient ratio. The stream order helps understand the estimation of floods near the basin area because high stream order rivers have a high chance of floods. Determining the water discharge