3-Flood Routing Through Indian Rivers.

Abstract

The importance of being able to route a flood accurately has resulted in the development of a number of methods. They vary from simple hydrolagical procedure based only on the conservation of mass principle to calculations based on the complete unsteady flow equations. The simple methods require a limited data permitting even hand computations, whereas the methods based on the hydraulic principles require a vast set of data to be collected and processed requiring a high computer storage and time. In developing countries such as India, the availability of data and Computing facilities always a problem. The Centre for Water Resources has, with the financial support from the Central Board of Irrigation and Power, New Delhi, attempted to undertake a project with a view to identify and highlight the difficulties in routing floods in Indian rivers. Specifically the project focussed its attention towards (1) the data requirement and availability; (ii) the difficulties which will be faced in applying various methods; (iii) accuracy of various methods; and (iv) adoptobility on the basis of simplicity and data and computer requirements. A condensed form of the results of this, study is presented here in this paper.