Integrated Models in the Lower Part of Chao-Phraya River Basin for an Early Flood Warning System

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Bibliographic Information

Other Title
  • 洪水早期警報システムのためのチャオプラヤ川下流域統合モデル

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Abstract

Chao-Phraya river basin is the most important river basin in Thailand that produces the main country products; therefore, flood can make loss to the national economy. In this study, the mathematical models have been applied to prepare flood information for an early flood warning system. HEC-RAS is applied for discharge and water level simulation in the main channel of Chao-Phraya River with unsteady state condition; consequently, it required data in the upstream, downstream and lateral boundary that can be estimated by ANNs, Harmonic Analysis and Multiple Linear Regressions, respectively. The river channel parameter and inline structure calibration obtained 80% of correlation coefficient; besides, boundary data estimations can achieve the satisfied accuracy. Furthermore, the integrating of river flow model and boundary models obtained satisfied verification result during June to November, 2011. Thus, the integrated model can provide 4 days ahead of flood forecasting information.

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Details 詳細情報について

  • CRID
    1050001335742471168
  • NII Book ID
    AN00027784
  • ISSN
    0386412X
  • HANDLE
    2433/161820
  • Text Lang
    en
  • Article Type
    departmental bulletin paper
  • Data Source
    • IRDB

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