Comparative Study of 1D Hydraulic Models Simulation Performed for the Panchganga River Reach by Using HEC-RAS and MIKE HYDRO River Software

Abstract

The Panchganga River Basin is vulnerable to flooding. The flood occurred in the year 2019 was one amongst the worst floods in the known history of the river basin. The accurate estimation of water level from flood model plays a major role in flood assessment. Various software packages are available for developing flood models. Selecting suitable software package is difficult task. So, the objective of present study is to test the performance of 1D hydraulic models for the Panchganga River Reach (PRR) in Kolhapur, Maharashtra, India. These hydraulic models are prepared by using Hydrologic Engineering Center’s River Analysis System software and MIKE HYDRO River software. These models are developed for the PRR situated between the Prayag Chikhali and Nursingwadi gauging stations. The developed models are calibrated and validated by using peak discharge events and flood events. The results revealed acceptable water level simulations made by both models. It is concluded from the study that both the developed models can be utilized by the concerned river management authority to understand water level fluctuations, which is needed for countering flood disaster.