DEVELOPMENT OF A REAL-TIME STAGE PREDICTION SYSTEM AND ITS APPLICATION TO THE UPSTREAM KIZU RIVER BASIN
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- Takasao Takuma
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- Shiiba Michiharu
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- Tachikawa Yasuto
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
Bibliographic Information
- Other Title
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- 河川水位実時間予測手法の開発と木津川上流域への適用
- カセン スイイ ジツジカン ヨソク シュホウ ノ カイハツ ト キズガワ ジョ
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Abstract
A real-time stage prediction system which takes account of backwater effect is developed. The system is made up of a real-time runoff prediction system and a flood routing system. The real-time runoff prediction system is used to forecast the discharge which flows into the upstream end of a channel reach. This system is based on the filtering and prediction theory developed by Kalman and others. A lumped runoff model is transformed into a stochastic model by incorporating noise terms. The resulting stochastic differential equations are solved by an iterative difference method with the aid of a statistical linearization technique. In the flood routing system, the flow of the channel reach is modeled using the one-dimensional equations of unsteady flow and these equations are solved with the four-point implicit method. The upstream boundary condition is given by the predicted discharge and the downstream boundary condition is given by the stage-discharge relationship as provided by the rating curve. As a case study, this system is applied to the prediction of the stages at the sluice ways located along the Ueno Retarding Basins.
Journal
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- Doboku Gakkai Ronbunshu
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Doboku Gakkai Ronbunshu 1994 (503), 19-27, 1994-11-21
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680285127552
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- NII Article ID
- 130003982139
- 40004508561
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- NII Book ID
- AN10014020
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- ISSN
- 18827187
- 02897806
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- NDL BIB ID
- 3902858
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed