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流域貯留量を考慮した現業用洪水予測手法の改良
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IMPROVING FLOOD PREDICTION TECHIQUES FOR RIVER MANAGEMENT BY CONSIDERING THE BASIN STORAGE CAPACITY
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Basin storage capacity
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long-term hydrologic process
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storage routing model
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The model parameters for flood prediction currently used by river management have been established based on the relationship between precipitation and runoff for only a few specific cases. The prediction accuracy can be low when the data of cases that differ from the specific cases used for parameter-setting are applied, even when the subject cases are from the same basin as the specific cases. In this report, to improve the flood prediction accuracy of river management, a technique to calculate the run off rate corresponding to the basin storage capacity, which represents the wetness/dryness of the basin, was introduced by quantifying the basin storage capacity. By using the newly developed technique, reproduction of hydrographs and simulations of flood prediction were done. The technique compared with the currently used technique in which the runoff rate is fixed.
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出版者 | 土木学会
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日付 | Created 2019-03-14
, Issued 2014-06
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言語 | jpn |
資源タイプ | journal article |
出版タイプ | VoR |
資源識別子 | URI http://hdl.handle.net/10258/00009787
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isVersionOf
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http://library.jsce.or.jp/jsce/open/00906/2014/20-0331.pdf
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コンテンツ更新日時 | 2019-07-29T03:42:32Z |