Development of Rating Curve for Ofu River at Oforachi Hydrometric Station

Ofu River Rating Curve

Authors

  • M. I. Alfa University of Jos
  • M. A. Ajibike Ahmadu Bello University, Zaria
  • D. B. Adie Ahmadu Bello University, Zaria
  • O. J. Mudiare Ahmadu Bello University, Zaria

Keywords:

Discharge, Efficiency, Ofu River, Rating curve, Hydrometric station

Abstract

The stage-discharge rating curve is widely used in the research for analysis of flow regime and design of hydraulic structure and river channel where the measurement of discharge is difficult especially in developing countries like Nigeria. This study sought to develop a stage-discharge relationship for Ofu River in Nigeria where water resources project planning has been limited by the unavailable of stream flow data. Discharge Measurement was carried out using Valeport Current meter while stage was measured using staff gauge at Oforachi Bridge hydrometric station from February, 2016 to January, 2017. The Stage and discharge results were used to determine the curve coefficient via regression analysis and finally the rating curve equation for the river at this station. The Oforachi Bridge serves as the permanent control, thus the curve is reliable.

Author Biographies

M. A. Ajibike, Ahmadu Bello University, Zaria

Department of Water Resources and Environmental Engineering/Reader

D. B. Adie, Ahmadu Bello University, Zaria

Department of Water Resources and Environmental Engineering/Reader

O. J. Mudiare, Ahmadu Bello University, Zaria

Department of Agricultural Engineering/Professor

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Published

2018-02-22

Issue

Vol. 15 No. 1 (2018)

Section

Articles

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