CS(AR)-33/98-99 : Geomorphological study of Devak basin

Abstract

Geomorphology is the Science of evolution of landforms in terms of its lithology, stucture , basin geometry and other morphometric factors .The advanced knowledge of geomorphology of the region is of importance in the field of flood control measures and engineering projects, since geomorphological characteristics of river basin in mountanins areas affect runoff process and formation of flood in these areas.

Parameters of hydrologic models describing rainfall- runoff process may be estimated either by optimization technique using topographical and climatic information of the basin. Since most of the location in mountainous areas is either ungauged or sufficient data is not available for them, the study of geomorphological characteristics of such areas become much more important and significant. This one of the main objectives of geomorphological studies is to regionalise the hydrologic models describing rainfall runoff process.

Various geomorphological parameters, which have mostly been used by various investigators, can be broadly classified as those describing, 1. Linear aspects of channel system, 2. Areal aspects of channel system, and 3. Relief aspects of the basin

In this study the above mentioned aspects of the Devak Basin up to Gura Slathian are evaluated .The study may be useful at finding out effect of geomorphology on watershed runoff response and identifying these parameters which are more closely related to runoff.