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2D numerical computation for flood flow in upper river basin with tributary inflows by using water level hydrographs observed at the main stream

Uchida, T. ; Fukuoka, S. ; Ishikawa, T.

Journal of flood risk management, 2014-03, Vol.7 (1), p.81-88 [Periódico revisado por pares]

London: Blackwell Publishing Ltd

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  • Título:
    2D numerical computation for flood flow in upper river basin with tributary inflows by using water level hydrographs observed at the main stream
  • Autor: Uchida, T. ; Fukuoka, S. ; Ishikawa, T.
  • Assuntos: 2D numerical analysis ; Creeks & streams ; discharge hydrograph ; Freshwater ; Numerical analysis ; observed water level hydrograph ; River basins ; tributary inflow ; upper river basin
  • É parte de: Journal of flood risk management, 2014-03, Vol.7 (1), p.81-88
  • Notas: ark:/67375/WNG-ZMTHR3RF-J
    istex:71F803139BDFB21032DC4A932C1FEDF0B11C3AD7
    ArticleID:JFR312019
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: It is difficult to clarify the characteristics of flood flows in a total river system because of insufficient data for the upper river basin. Numerical analysis is an effective tool for complementing flood observation data in space and time. The objective of this study is to develop an unsteady 2D numerical analysis method for a river with tributary inflows in the upper river basin. The inflow boundary conditions of sharp discharge hydrographs from tributaries were estimated using water level hydrographs obtained from observation stations in the main stream; these stations were installed far downstream from the confluence points. This paper demonstrates that the method could be used to investigate the propagation and transformation of the discharge hydrographs from the main and tributary streams by using the sparse water level hydrographs observed in the main stream. The installation method for the water level observation stations is also discussed.
  • Editor: London: Blackwell Publishing Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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