タイトル |
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ja
長期水循環に基づく流域の湿潤状態を考慮した洪水流出解析の研究
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その他のタイトル |
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RESEARCH ON FLOOD RUNOFF ANALYSIS THAT TAKES INTO ACCOUNT SOIL WATER STORAGE ESTIMATED BY LONG-TERM HYDROLOGIC PROCESS
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作成者 |
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権利情報 |
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主題 |
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Other
long-term hydrological assessment model considering snow processes
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soil water storage
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storage routing model
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parameter optimization
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parameters fixed
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NDC
517
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内容注記 |
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This study aims at improving the accuracy of a currently used flood runoff model by taking into account the soil water storage (SWS) before flooding and continuously changing the effective rainfall input into the model. In this study, SWS was estimated by using a "long-term hydrological assessment model considering snow process" (LoHAS) first. Then, the runoff rate, which is changing hour to hour, was determined by using the estimated SWS as the initial value of the runoff. Next, the estimated effective rainfall was input into the storage function model. Compared to the accuracy of the current flood runoff model, the accuracy of the new model in terms of the reproduced hydrograph was improved. The accuracy in reproducing the second peak of a two-peak flood and in reproducing flood runoff caused by snowmelt and rainfall was particularly improved.
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出版者 |
土木学会
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日付 |
Created2019-12-10
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Issued2016
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言語 |
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資源識別のタイプ |
journal article |
出版タイプ |
VoR |
資源識別子 |
URI
http://hdl.handle.net/10258/00010081
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関連 |
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isIdenticalTo
DOI
https://doi.org/10.2208/jscejhe.72.I_163
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NAID
130005312032
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isVersionOf
URI
https://www.jstage.jst.go.jp/article/jscejhe/72/4/72_I_163/_pdf/-char/ja
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収録誌情報 |
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土木学会論文集B1(水工学) = Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
72(4), 163-168
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ファイル |
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コンテンツ更新日時 |
2021-04-13 |