Development of an Integrated Rainfall-Runoff/Flood Inundation Simulation Model and The Economic Damage Estimation Framework due to the Flooding

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Bibliographic Information

Other Title
  • 洪水による被害推定手法の高度化に関する研究

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Abstract

This paper describes a framework to estimate the direct economic damages (e.g. house and crop damages) due to floodings. The basic idea is that: (1) the flood inundation simulations are carried out with a structured grid, (2) the inundation depths output in grid cells from the structured grid are transferred to the house and crop filed vector data as attributes and (3) the economic risk of each house and crop field is estimated using the attributes. In this paper first the example of the economic damage estimation using the vector data prepared by the Ryuou Town is introduced. Then, an integrated rainfall-runoff/flood inundation simulation model with a structured grid is developed and applied to the Sayogawa river catchment which recently experienced severe flood damages due to extreme rainfall. Based on the inundation depths observed and simulated with this model as well as the actual economic loss and estimated, the accuracy of the flood and economic estimation models are investigated. This paper shows the usefulness of the economic risk framework and large-scale integrated rainfall-runoff/flood inundation model.

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Details 詳細情報について

  • CRID
    1050282677089950080
  • NII Book ID
    AN00027784
  • ISSN
    0386412X
  • HANDLE
    2433/129429
  • Text Lang
    ja
  • Article Type
    departmental bulletin paper
  • Data Source
    • IRDB

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