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Title
  • ja メコン川下流域の洪水氾濫に対する観測結果を反映した河道条件の影響分析
Alternative
  • INFLUENCE ANALYSIS OF OBSERVED RIVER CHANNEL CONDITIONS ON INUNDATION PROCESS IN LOWER MEKONG RIVER BASIN
Creator

工藤, 俊

萬矢, 敦啓

E., D. P PERERA

小関, 博司

岩見, 洋一

中津川, 誠

Rights
    • © 2016 土木学会
Subject
  • Other Inundation simulation
  • Other Observation
  • Other Cross sectional shape
  • Other Roughness change
  • NDC 517
Description
Other
  • This study aims to analyze the influence of observed river channel conditions on inundation simulation in terms of discharge within a river channel and inundation area and depth over a floodplain. The target area is the Lower Mekong River Basin, which suffered from severe floods in 2000 and 2011. First, measurement using an acoustic Doppler current profiler is conducted to understand the longitudinal distribution of cross sectional shapes and roughness change during a flood in a river channel. Based on the observation results, inundation simulation with the Rainfall-Runoff-Inundation model is conducted. The calculation results show that the reproducibility of discharge improves by taking the longitudinal distribution of the width and depth of the river reach into consideration, and that the water depth over the floodplain has a high sensitivity to both cross sectional shapes and roughness change during the flood.
Publisher土木学会
Date Created 2019-12-10 , Issued 2016
Languagejpn
NIItypejournal article
VersiontypeVoR
Identifier URI http://hdl.handle.net/10258/00010080
Relation
  • isIdenticalTo DOI https://doi.org/10.2208/jscejhe.72.I_145
  • isIdenticalTo NAID 130005312024
  • isVersionOf URI https://www.jstage.jst.go.jp/article/jscejhe/72/4/72_I_145/_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), 145-150
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Oaidate2020-06-25T06:57:01Z