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Normalized Antecedent Precipitation Index Based Model for Prediction of Runoff from Un-Gauged Catchments

Author

Listed:
  • Narayan C. Ghosh

    (Bengal Institute of Technology)

  • Rahul Kumar Jaiswal

    (Regional Centre, National Institute of Hydrology)

  • Shakir Ali

    (Research Centre)

Abstract

The ‘Normalized Antecedent Precipitation Index (NAPI)’ model developed based on water balance equation was found capable to predict runoff yields from ungauged catchment when its parameters estimated from the gauged catchment are updated using the linear relationship of geomorphologic parameters of an ungauged to that of the gauged catchment, and cumulative geomorphologic index (CGI). The CGI was developed by assigning a relative weight on each geomorphologic parameter multiplied by the ratio of characteristic value of that parameter of the ungauged and gauged catchment. Influence of land-use and land-cover (LULC) on the model’s parameters was also analyzed by developing an index for LULC. The NAPI model has three parameters and its mathematical structure has rational form and the parameters possessed resonance with curve number (CN) of the SCS (Soil Conservation Services) model. The NAPI model demonstrated ability to simulate rainfall-runoff events both as direct and inverse problem. Performances of the model to predictions of runoffs from ungauged catchments were also tested with the data of two observation sites of the Bina basin in Madhya Pradesh (India) considering the data of one site as the runoffs from the ungauged catchment. The results exhibited a close match between the computed and observed values when the model’s parameters were also updated by the index of LULC.

Suggested Citation

  • Narayan C. Ghosh & Rahul Kumar Jaiswal & Shakir Ali, 2021. "Normalized Antecedent Precipitation Index Based Model for Prediction of Runoff from Un-Gauged Catchments," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(4), pages 1211-1230, March.
    • Handle: RePEc:spr:waterr:v:35:y:2021:i:4:d:10.1007_s11269-021-02775-w
    DOI: 10.1007/s11269-021-02775-w
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    References listed on IDEAS

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    1. M. Jain & S. Mishra & V. Singh, 2006. "Evaluation of AMC-Dependent SCS-CN-Based Models Using Watershed Characteristics," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 20(4), pages 531-552, August.
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