Beach Changes between Point Ryugu and Nakoso Fishing Port including Same River Mouth in Fukushima Prefecture

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  • 静岡海岸の沿岸漂砂量およびその分布形の評価
  • 福島県の鮫川河口を含む竜宮岬～勿来漁港で起きつつある海浜変形
  • フクシマケン ノ サメガワ カコウ オ フクム リュウグウミサキ~ナコソ ギョコウ デ オキ ツツ アル カイヒン ヘンケイ

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Abstract

Beach changes between Point Ryugu and Nakoso fishing port facing the Pacific Ocean in Fukushima Prefecture were investigated. The shoreline recession occurred in the study area between 1980 and 1990s was triggered by the construction of the offshore breakwater of Hirakata fishing port south of the coast due to its wave sheltering effect. Although artificial reefs were constructed on the Suga and Sekita coasts in the central part of the study area as a measure against beach erosion, their protective effect was limited because of the high wave sheltering effect of the offshore breakwater of the fishing port constructed at the south end of the coastline.

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