FIELD INVESTIGATION OF RIP CURRENT ON HOKOTA COAST FACING KASHIMANADA SEA
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- UDA Takaaki
- （一財）土木研究センター なぎさ総合研究所 日本大学理工学部海洋建築工学科
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- OHTANI Yasuro
- （一財）土木研究センター 河川・海岸研究部
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- NAGANUMA Shingo
- 茨城県鉾田工事事務所道路河川整備課
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- OSAKI Yasuhiro
- 前 茨城県土木部河川課
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- OOKI Yasuhiro
- （株）水圏科学コンサルタント
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- NAKAMURA Asuto
- 日本ミクニヤ（株）大阪支店
Bibliographic Information
- Other Title
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- 鹿島灘に面した鉾田海岸での離岸流観測
- カシマナダ ニ メンシタ ホコタ カイガン デ ノ リガンリュウ カンソク
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Abstract
Field investigation of rip current was carried out on the Hokota coast on November 29 and 30, 2017. Oblique photographs were taken from on top of sand dune. Also, photographs were taken using a drone from an elevation of 150 m above the surf zone together with tracing floats with a small GPS, which were thrown into the surf zone near No. 29 artificial headland. Wave field was calculated using the energy balance equation, and numerical simulation of nearshore current was carried out. The calculated flow pattern was compared with those measured. It was concluded that the development of rip currents in the area between artificial headland Nos. 29 and 30, and stationary development of rip current near No. 29 HL were successfully explained by numerical simulation.
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_97-I_102, 2018
Japan Society of Civil Engineers