2026-03-08T05:03:24Z https://fra.repo.nii.ac.jp/oai

oai:fra.repo.nii.ac.jp:02007918 2025-06-11T07:51:52Z 12:14:1716955731445

万関瀬戸の事例報告 急潮流が生じる航路の流況観測の試み Current observation in a channel under strong tidal current condition ― A case study of Manzeki-Seto-Channel ― Yamamoto, Jun 660 山本, 潤 50372058 ヤマモト, ジュン Akeda, Sadamitsu 947 明田, 定満 30372056 アケダ, サダミツ Tokiyoshi, Manabu 時吉, 学 トキヨシ, マナブ idal current; channel; waterway to be developed and preserved; tidal observation In order to calculate the tidal current correctly for evaluating the water quality of a bay, it is necessary to compare a calculation result with an observed value at the point at which the maximum tidal current velocity generates. The area for calculation is Asou bay in Tsushima Island. It is a closed bay that is being used for aquaculture. The bay has a narrow channel called Manzeki-Seto at the east side. Through the channel, the seawater is flowing violently, sometimes from an open boundary of the east side, and sometimes from the bay. It is an important channel to exchange the seawater of the closed bay. Manzeki-Seto-Channel is one of "the waterways to be developed". The waterway is used frequently by large-sized vessels and fishing boats etc. Therefore, it was rather difficult to observe in the waterway. There is no archived observational data relevant to compare with our computed data. We performed tide level and current observation in Manzeki-Seto-Channel. The observation result of a current was verified by numerical computation. As a result, it turned out that flow velocities are about 2.0m/s (from west to east), 1.0m/s (from east to west) in the time of the spring tide and 1.5m/s (from west to east), 0.5m/s (from east to west) in the time of the neap tide. article 水産工学研究所 National Research Institute of Fisheries Engineering 2004-03 VoR 水産工学研究所技報 26 1 7 Technical report of National Research Institute of Fisheries Engineering AN1056052X 1341-8750 https://fra.repo.nii.ac.jp/records/2007918 jpn nrife_g_26_1 日本農学文献記事索引(agriknowledge) https://agriknowledge.affrc.go.jp/RN/2010691242 metadata only access