• Avijit Mahala

The major aim of quantitative geomorphology is to understand the geomorphological stages of evolution of any area. This trend has more intensified after quantitative revolution and development of remote sensing and GIS. Morphometric analysis is an important indicator to understand the geomorphic evolution of any drainage basin. In this study morphometric analysis has been carried out to compare the drainage basin characteristics and related stages of evolution of a mountain-Plain and plateau-plain drainage basin of tropical India. The Kosi basin for mountain-plain area and Kangsabati basin for plateau-plain area has been selected for present study. Different drainage morphometric parameters and measurements related to linear, areal, relief characteristics have been determined through the use of SRTM (Shuttle Radar Topographic Mission) GeoDEM and ARC GIS 10.1. Area- altitude relationship, as well as hypsometric characteristics, have been accessed in this work to identify the stages of geomorphic evolution. All the relief characteristics indicate Kosi is in young stage than mature plateau region river of Kangsabati. Most of the morphometric characteristics indicate there are high geologic and geomorphological controls on river basin characteristics.

Quantitative geomorphology, Geomorphological stages of evolution, Morphometric analysis, Tropical India, Area-altitude relationship, Kosi Basin, Kangsabati basin, Hypsometric characteristics,,, Geomorphological control.

"Determination of Stages of Evolution: A Comparative Study of Mountain-Plain (Kosi, Bihar) and Plateau-plain (Kangshabati, WB) Regions of Tropical India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.7-21, May-2018, Available :http://www.jetir.org/papers/JETIR1805193.pdf

"Determination of Stages of Evolution: A Comparative Study of Mountain-Plain (Kosi, Bihar) and Plateau-plain (Kangshabati, WB) Regions of Tropical India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp7-21, May-2018, Available at : http://www.jetir.org/papers/JETIR1805193.pdf