Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India?

摘要: Abstract This study focuses on the role of topography in downstream changes channel morphology a monsoon dominated Dwarkeswar River with sixty cross-sections. Bankfull characteristics, flow sediment characteristics and pattern were analysed respect to dissected plateau, plateau-fringe alluvial plain using statistical analysis. There was significantly positive relation distance from source width (r = 0.874), width/depth ratio (r = 0.607) area (r = 0.926) although negative found (width (r = −0.963), (r = −0.897), (r = −0.821)). Overall, dimensions diminished by 6–7 times. In both these cases, TSI values higher than HSI. PCA-1, topographic factors more dominant drainage area, elevation, slope, basin shape depth opposite each other comparison plateau plain.