A Basic Study on the Water-front Structure's effect on the current in the Hamato Bay of Yuge-Island
| Project/Area Number |
06680524
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
環境影響評価(含放射線生物学)
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| Research Institution | YUGE NATIONAL COLLEGE OF MARITIME TECHNOLOGY |
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Principal Investigator |
TADA Mituo Yuge National College of Maritime Technology, Dept.of Maritime Technology Associate Professor, 商船学科, 助教授 (60141941)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUSHITA Chitose Yuge National College of Maritime Technology, Dept.of Information Technology Ass, 情報工学科, 助手 (30270359)
SUSAMI Satoshi Yuge National College of Maritime Technology, Dept. of Maritime Technology Assis, 商船学科, 助手 (20226484)
MATSUSHITA Kuniyuki Yuge National College of Maritime Technology, Dept.of Maritime Technology Associ, 商船学科, 助教授 (30165807)
KUBOTA Yasuhiro Yuge National College of Maritime Technology, Dept.of Information Technology Pro, 情報工学科, 教授 (90249863)
OGAWA Kazuya Yuge National College of Maritime Technology, Dept.of Information Technology Pro, 情報工学科, 教授 (90141936)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1995: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1994: ¥400,000 (Direct Cost: ¥400,000)
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| Keywords | ADCP / barotoropic current / baroclinic current / geographical eddy current / offshore current / STD / seasonal change / high salinity water / 浅水域観測 / 地形性反流 / 成層 / 混合 / 黒潮系高塩分水 / 砂浜の浸食 |
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| Research Abstract |
Tidal currents survey by 1200KHz ADCP was carried out twice (each 3 days in September, 1994 and in June, 1995) to investigate flow patterns and observation of sea water (temperature and salinity) was done every month from April 1994 to May 1995 to study seasonal changes and characteristics at Hamato bay in the Yuge Island.
Results of these survey and observation were summerized as follows ;
1)The tidal currents were roughly found to be barotropic at the surveying lines.
2)The geographic eddies were generated around the point B of the AB surveying line owing to the headland effect.
3)At the time of the ebb, the counter currents were turned clockwise at the inside of the bay, and the off-shore currents were roughly found to be formed at the middle part of the bay.
4)In the flood, the counter current were found to flow anti-clockwise along the coast line of the bay.
5)The salinity of the water was on the increase in winter and its peak value was over 34 psu in February, and this value was very high in the Sea of Hiuch.
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Report
(3 results)
Research Products
(10 results)
