Distributed TOPMODEL Approach for Rainfall-Runoff Routing Modeling in Large-Scale Basins

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Bibliographic Information

Other Title
  • 分布型TOPMODELを用いた大規模流域に対する降雨流出解析

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Abstract

The objective of this study is to apply a modified distributed TOPMODEL approach to three large-scale basins as a Rainfall Routing Model (RRM): the Amazon, the Brahmaputra and the Yangtze basins. This modified approach uses a multi-velocities parameterization to routing the flow. The modified model also uses spatially distributed rainfall and evapotranspiration data through a cell-to-cell routing method. Monte Carlo method was used to find the best set of parameters. The modified model obtained Nash-Sutcliffe coefficient values of 0.48, 0.82 and 0.78 for the Amazon, the Brahmaputra and the Yangtze basins, respectively. The simulations showed that the modified TOPMODEL approach seems to be a reasonable hydrological model to estimate stream flow discharges in large-scale river basins.

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Details 詳細情報について

  • CRID
    1050001202178048256
  • NII Book ID
    AN00027784
  • ISSN
    0386412X
  • HANDLE
    2433/129426
  • Text Lang
    en
  • Article Type
    departmental bulletin paper
  • Data Source
    • IRDB

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