Morphometric Analysis of Pennar River Basin Using Remote Sensing & GIS

This study undertook a meticulous morphometric analysis of the Pennar River basin, employing ArcGIS 10.8 software. The research encompassed data procurement, involving digital elevation models (DEMs) and hydrological data from the basin, sourced primarily from SRTM data accessed via the USGS website. Leveraging the capabilities of ArcGIS, a comprehensive set of 32 morphometric parameters was computed. These parameters encompassed diverse facets of the basin's characteristics, including stream order, drainage density, stream frequency, bifurcation ratio, basin shape, and relief ratio, among others. The computations aimed to unravel the drainage pattern, basin shape, hydrological response mechanisms, and the overall geomorphological attributes of the basin. Employing ArcGIS for morphometric analysis furnished profound insights into the morphology and hydrological dynamics of the Pennar River basin. The Pennar River basin's morphometric analysis show-cases a diverse stream hierarchy with 2637 streams spanning 12710.93 km. Stream length ratios range from 0.288 to 1.487, with a mean of 0.652. Bifurcation ratios vary from 0.631 to 3.034. The basin covers 54905.1 km², with a circularity ratio of 0.315 and an elongation ratio of 0.409. Elevation features include a maximum of 1444 m, a minimum of -16 m, and a total relief of 1460 m, resulting in a relief ratio of 2.261.