Water Resources Management

, Volume 15, Issue 3, pp 149–163 | Cite as

Development of a Rainfall-Runoff Model, its Calibration and Validation



In this study a rainfall-runoff model was developedbased on water balance equations. Input to the model isprecipitation and potential evapotranspiration (both onmonthly basis). Output from the model is the simulated runoffat the watershed outlet. Five parameters were adopted fordescription of the characteristics of drainage area. Theseparameters are estimated using the Downhill Simplex Method. Themodel was calibrated and tested for four watersheds.Statistical results showed that the model preformed well. Thecorrelation co-efficient between the simulated and measureddata was on the range of 77% to 93%.

rainfall-runoff water balance watershedcharacteristics 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • M. S. Abulohom
    • 1
  • S. M. S. Shah
    • 1
  • A. R. Ghumman
    • 2
  1. 1.Centre of Excellence in Water Resources EngineeringUniversity of Engineering and TechnologyLahorePakistan
  2. 2.Civil Engineering DepartmentUniversity of Engineering and TechnologyTaxilaPakistan

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