RELATION AMONG SHORELINE CHANGE, RIVER MOUTH LOCATION, AND ALONGSHORE SEDIMENT TRANSPORT AT THE SANRIHAMA BEACH, FUKUI, JAPAN
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- UENO Takuya
- 金沢大学大学院 自然科学研究科
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- TAYASU Masashige
- 福井工業高等専門学校 環境都市工学科
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- YUHI Masatoshi
- 金沢大学 理工研究域地球社会基盤学系
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- UMEDA Shinya
- 金沢大学 理工研究域地球社会基盤学系
Bibliographic Information
- Other Title
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- 高頻度現地測量による福井県三里浜海岸の汀線変化および河口変動と自然外力の解析
- コウヒンド ゲンチ ソクリョウ ニ ヨル フクイケン サンリハマ カイガン ノ テイセン ヘンカ オヨビ カコウ ヘンドウ ト シゼン ガイリョク ノ カイセキ
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Abstract
The Sanrihama Beach is a sandy beach which is located in the northern part of Fukui Prefecture. The Takasu River is a small river that flows into the center of the beach. In order to understand the relationship among the river-mouth location, shoreline change, and alongshore sediment transport, frequent on-site survey was conducted from 2009 to 2012 on weekly basis. The characteristics of seasonal and/or year-to-year variation in river-mouth location, shoreline position, and littoral transport were examined in detail. The river-mouth was closed often from June to November, while its location moved significantly in winter. In summer, alongshore location of river mouth generally corresponded to the location of local shoreline advance. Both of the change in river mouth location and cumulative longshore sediment transport rapidly increased in winter, but the directions were not necessarily the same. The characteristics of seasonal variation of shoreline change are expressed by the first mode of EOF.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74 (2), I_973-I_978, 2018
Japan Society of Civil Engineers