TR-179 : Application of Rainflo model on Malaprabha catchment upstream of Khanapur

Abstract

Flood forecasting, reservoir design, watershed simulation, and comprehensive water resources projects generally utilize some form of routing technique. RAINFLO model is used to predict the temporal and spatial variations of a flood wave as it traverses a river reach or reservoir, or can be employed to predict the outflow hydrograph from a watershed subjected to a known amount of precipitation. The RAINFLO model can be used to calculate regulatory and design discharges in ungauged watersheds, to complement statisti- cal analyses in watersheds with scant or insufficient streamflow data, to calculate probable maximum flood based on the probable maximum precipitation, and when installed on a specific basin, for operational flood forecasting based on rainfall data in real time. This report has been prepared in connection with ongoing UNDP Project IND/90/03 entitled "Developing Capabilities in Hydrological Studies" This report has been prepared by Mr. A.V.Shetty, Scientist 'B' , with the assistance of Mr. N.Varadharhjan; R.A, under the

guidance of Prof. V.M. Ponce, San Diego State University; U.S.A , during his visit to Hard Rock Regional Centre Belgaum.