LONG-TERM CROSS-SHORE MOVEMENT OF LONGSHORE BAR AND ASSOCIATED SEDIMENT TRANSPORT

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  • 沿岸砂州の長期変動特性と底質移動特性
  • エンガン サス ノ チョウキ ヘンドウ トクセイ ト テイシツ イドウ トクセイ

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Abstract

The long-term bar behavior was investigated with beach profile data obtained nearly daily for eight years at the Hasaki Coast, Japan. The position of the bar crest repeatedly moved seaward with a return period of a year. The cross-shore sediment transport, on the other hand, periodically fluctuated seaward and shoreward during the seaward migration of the bar crest. The relationship between the cross-shore sediment movement due to the bar crest migration and the wave energy flux in deep water was also investigated.

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