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  • 泉 典洋
    School of Civil Engineering, Asian Institute of Technology
  • 首藤 伸夫
    岩手県立大学総合政策学部総合政策学科
  • 田中 仁
    東北大学大学院工学研究科土木工学専攻
  • VITHANA H.P.V.
    School of Civil Engineering, Asian Institute of Technology

書誌事項

タイトル別名
  • On the location of a river mouth in a pocket beach

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説明

A commonly observed feature of pocket beaches confined by two rocky headlands is that river mouths are located at either end of beaches adjacent to one of headlands. This study presents a theoretical model of instability of river mouth locations in pocket beaches in terms of a linear stablity analysis. The theory shows that river mouths cannot exist stably around the central region of beaches and only can be located at either end of beaches when the load of river sediment supply relative to the dimensions of rivers are comparatively larger than the capability of longshore sediment transport relative to the dimensions of beaches.

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