Verification of Performance of Model for Predicting Formation of River-Mouth Terrace in Dynamic Equilibrium

  • K. IwaseEmail author
  • T. Uda
  • A. Kobayashi
  • M. Serizawa
  • Y. Noshi
Conference paper


The effect of the river-mouth current on sand movement around a river-mouth terrace was incorporated into the contour-line-change model to predict the dynamic equilibrium topography under the action of waves and current. Then, the river-mouth terrace topography, the velocity distribution of the river-mouth current, and the grain size distribution were measured at the mouth of the Yumizutani River flowing into Lake Biwa. The performance of the model was evaluated on the basis of these field data. The impact of river-mouth improvement such as the construction of jetties at the river mouth was also examined using the present model.


river-mouth terrace equilibrium topography field measurements contour-line-change model 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • K. Iwase
    • 1
    Email author
  • T. Uda
    • 2
  • A. Kobayashi
    • 3
  • M. Serizawa
    • 4
  • Y. Noshi
    • 3
  1. 1.Yokosuka CityJapan
  2. 2.Public Works Research CenterTaitoJapan
  3. 3.Department of Oceanic Architecture & Engineering, College of Science & TechnologyNihon UniversityFunabashiJapan
  4. 4.Coastal Engineering Laboratory Co., Ltd.ShinjukuJapan

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