Runoff Model for Flood Forecasting

• ISHIHARA, Yasuo

• KOBATAKE, Shigeki

抄録

The formation process of flood hydrograph in a river basin can be expressed by the combination of the conversion process from rainfall to runoff in divided sub-basins and the concentration process of the runoffs in a stream net. The objective of this paper is to develop a synthetic method of flood estimation based on such a concept. The tank model is employed for the conversion process and the modified time-area-concentration diagram for the concentration process. The hydrograph at the outlet of a basin is given by the convolution integral of the output from the tank model and the modified time-area-concentration diagram. The method of calculation of flood hydrographs is applied to five actual basins, and the values of parameters of the tank model are identified for each basin. After investigating the relation between the identified parameters and the geological features of the basins, several calculations on other basins are carried out for verification of the relation. Then, a synthetic method of flood estimation can be introduced for flood forecasting.

収録刊行物

• Bulletin of the Disaster Prevention Research Institute

  Bulletin of the Disaster Prevention Research Institute 29 (1), 27-43, 1979-07

  Disaster Prevention Research Institute, Kyoto University

詳細情報

• CRID: 1050001201694498560
• NII論文ID: 120002398838
• NII書誌ID: AA00581033
• ISSN: 04547675
• HANDLE: 2433/124881
• 本文言語コード: en
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • CiNii Articles