International Journal of Statistics and Systems
  • Year: 2010
  • Volume: 5
  • Issue: 4

Forecasting River Runoff under Impact of Rainfall: A Case Study

  • Author:
  • Rashmi Nigam1, Sudhir Nigam2, K.R. Pardasani3, S.K. Mittal4
  • Total Page Count: 9
  • Page Number: 537 to 545

1Department of Mathematics, Maulana Azad National Institute of Technology (MANIT), Bhopal, India, E-mail: rashminigam75@gmail.com

2Civil Engineering Department, Acropolis Institute of Technology and Research, Bhopal

3Department of Mathematics, MANIT, Bhopal, India

4Civil Engineering Department, MANIT, Bhopal, India

Abstract

Flood has emerged as a serious problem in the recent years affecting material and human resources. The present work focuses to simulate flood episode in Kulfo catchment area of the Ethiopia, which is still under geographical modification with hilly topography and impervious soil texture. The modeling results will add to develop flood management strategies to reduce disaster. The complexicity of natural hydrological phenomenon and dependent random variables are expressed considering it as stochastic process. Flood (maximum river flow) forecasting on the Kulfo River with monthly runoff data using stochastic TRANSFER FUNCTION (TF) time series models is done. The analysis of seasonally varying time series of discharge data has revealed that a Bi-variate TF model has produced excellent results for three to six months forecast compared to higher order ARIMA models.

Keywords

Rainfall-Runoff, Forecasting, Stochastic, Transfer function, Simulation, Modeling