2009 Fiscal Year Final Research Report
DYNAMICS OF SUSPENDED SEDIMENT AND VARIABILITY OF TIDAL FLAT SEDIMENT IN A TIDAL RIVER
| Project/Area Number |
18560499
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
水工水理学
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| Research Institution | Hiroshima University |
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Principal Investigator |
KAWANISHI Kiyoshi Hiroshima University, 大学院・工学研究科, 准教授 (40144878)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 浮遊土砂 / 沈降速度 / 干潟 / 密度成層 / 河川感潮域 / S |
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| Research Abstract |
Suspended sediments in estuaries play a significant role in understanding ecological and engineering problems. To shed light on the effects of river discharge, tidal range and wind on sediment transport, long-duration observations were carried out in the Ota floodway, using acoustic Doppler current profilers. In usually, the direction of the sediment transportation was toward upstream by the tidal straining for the restricted freshwater discharge. Furthermore, transverse sediment transports on tidal flats were demonstrated. In addition, the variability of tidal flat sediment was clarified.
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