Many Facets of a River Basin: Morphometric characteristics of Barnadi River Basin, Assam using GIS and Remote Sensing Techniques
Drainage morphometric characteristics of Barnadi river basin in Kamrup and Darrang district has been chosen for the present study. The morphometric analysis has been computed out using various geospatial tools and techniques. Survey of India toposheet and ASTER DEM data are used for the extraction of the drainage basin. Basin parameters in terms of linear, areal and relief aspects of the basin are carrying out. The parameters include stream order, stream number, mean stream length, bifurcation ratio, form factor, elongation ratio, drainage density, circulatory ratio, average slope, aspect contour etc. The Barnadi river basin is designated as a 5th order basin with an area of 432.588 sq.km. The elongation ratio of the basin is 0.109 indicating that the basin is highly elongated having bifurcation ratio ranging between 2 and 3.26. As indicated by the elongation ratio value (0.11), the basin shape is elongated.
Keywords: Barnadi river basin and Basin parameters, GIS, Morphometric analysis, Remote Sensing.