Winter Wave Setup at River Mouths Facing the Sea of Japan

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  • 日本海に面した河口感潮域における冬季のwave set-up高さ
  • ニホンカイ ニ メンシタ カコウカン チョウイキ ニ オケル トウキ ノ wave set up タカサ

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Abstract

Empirical studies on wave setup at river mouths are important in terms of river mouth morphology change, navigation transportation, saline intrusion into river and water environment. The main objective of this study is to investigate the influence of water depth at the entrance to wave setup height at Iwaki as well as Yoneshiro Rivers facing the Sea of Japan, with especial reference to differences from rivers facing the Pacific Ocean. Frequent occurrence of wave set-up can be observed in these two river entrances due to storm waves during winter. By combining the results of the present and previous studies of Nguyen et al.(2007), a technical diagram is proposed as a relationship between wave setup height with offshore wave height and average water depth at river entrance.

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