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Sensitivity Analysis of the GIUH based Clark Model for a Catchment

Author

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  • Rakesh Kumar
  • C. Chatterjee
  • A. Lohani
  • Sanjay Kumar
  • R. Singh

Abstract

For estimation of runoff response of an ungauged catchment resulting from a rainfall event, geomorphologicalinstantaneous unit hydrograph (GIUH) approach is getting popularbecause of its direct application to an ungauged catchment. Itavoids adoption of tedious methods of regionalization of unithydrograph; wherein, the historical rainfall-runoff data of anumber of gauged catchments are required to be analyzed. In thisstudy, the GIUH derived from geomorphological characteristics ofa catchment has been related to the parameters of Clark IUH modelfor deriving its complete shape. The DSRO hydrographs estimatedby the GIUH based Clark model have been compared with the DSROhydrographs computed by the Clark IUH model option of the HEC-1package and the Nash IUH model by employing some of the commonlyused error functions. Sensitivity analysis of the GIUH basedClark model has been conducted with the objective to identify thegeomorphological and other model parameters which are moresensitive in estimation of peak of unit hydrographs computed bythe GIUH based Clark model. So that these parameters may beevaluated with more precision for accurate estimation of floodhydrographs for the ungauged catchments. Copyright Kluwer Academic Publishers 2002

Suggested Citation

  • Rakesh Kumar & C. Chatterjee & A. Lohani & Sanjay Kumar & R. Singh, 2002. "Sensitivity Analysis of the GIUH based Clark Model for a Catchment," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 16(4), pages 263-278, August.
    • Handle: RePEc:spr:waterr:v:16:y:2002:i:4:p:263-278
    DOI: 10.1023/A:1021920717410
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    Citations

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    Cited by:

    1. Xiaoyan Zhai & Liang Guo & Ronghua Liu & Yongyong Zhang, 2018. "Rainfall threshold determination for flash flood warning in mountainous catchments with consideration of antecedent soil moisture and rainfall pattern," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 94(2), pages 605-625, November.
    2. A. Sarangi & C. Madramootoo & P. Enright & S. Prasher, 2007. "Evaluation of three unit hydrograph models to predict the surface runoff from a Canadian watershed," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(7), pages 1127-1143, July.
    3. Emna Ellouze-Gargouri & Zoubeida Bargaoui, 2012. "Runoff Estimation for an Ungauged Catchment Using Geomorphological Instantaneous Unit Hydrograph (GIUH) and Copulas," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(6), pages 1615-1638, April.
    4. Muhammad Ahmad & Abdul Ghumman & Sajjad Ahmad, 2009. "Estimation of Clark’s Instantaneous Unit Hydrograph Parameters and Development of Direct Surface Runoff Hydrograph," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 23(12), pages 2417-2435, September.

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