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Title
  • 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
Alternative
  • RESEARCH ON FLOOD RUNOFF ANALYSIS THAT TAKES INTO ACCOUNT SOIL WATER STORAGE ESTIMATED BY LONG-TERM HYDROLOGIC PROCESS
Creator

谷口, 陽子

中津川, 誠

臼谷, 友秀

Rights
    • © 2016 土木学会
Subject
  • Other long-term hydrological assessment model considering snow processes
  • Other soil water storage
  • Other storage routing model
  • Other parameter optimization
  • Other parameters fixed
  • NDC 517
Description
Other
  • 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.
Publisher土木学会
Date Created 2019-12-10 , Issued 2016
Languagejpn
NIItypejournal article
VersiontypeVoR
Identifier URI http://hdl.handle.net/10258/00010081
Relation
  • isIdenticalTo DOI https://doi.org/10.2208/jscejhe.72.I_163
  • isIdenticalTo NAID 130005312032
  • isVersionOf URI https://www.jstage.jst.go.jp/article/jscejhe/72/4/72_I_163/_pdf/-char/ja
Journal
    • ISSN 2185-467X
    • 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
File
Oaidate2020-06-25T06:57:01Z