5.3-Geomorphology of Kolar sub-basin

Abstract

The hydrologic response of a watershed usually depends upon the climatological and watershed characteristics. The geomorphological characteristics of a watershed represent the attributes of the watershed that can be employed in synthesizing, and perhaps understanding its hydrologic behaviour. For the purpose of hydrological studies, geomorphological characteristics can generally be classified in three groups; (i) the characteristics representing the linear aspects of the watershed, (ii) the characteristics which represent the areal aspects of the watershed, and (iii) the characteristics represent- ins the relief aspects of the watershed. In this paper procedures for the estimation of some of the important geomorphological parameters covering the linear, areal and relief aspects of the watershed are described. Based on that computer softwares have been developed in FORTRAN-77 language. For running the progratmes the digitized data of the drainage network are needed as input. The developed computer softwares have been implemented and tested on VAX 11/780 computer system available at NTH. The different geomorphological characteristics of Kolar subbasin of Narmada basin are derived using the developed softwares.