2015 Fiscal Year Final Research Report
Tidal flat sediments environment comprehensive analysis model and its practical application
| Project/Area Number |
25420525
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Hydraulic engineering
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 干潟土砂環境 / 海洋モデル / 波浪モデル / フロック / 近未来気候変動 / 水文流出モデル / シルト・砂 |
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| Outline of Final Research Achievements |
Silt components suspended in the rivers, aggregate to form so called flocs with an increase in positive ion concentration of estuarine water, resulting in settlement of tidal flat sediment. The mean flow at the estuary that transports the flock and sand, are affected by tide, wind currents, wave induced flow, and the buoyancy determined by the salinity and water temperature. Establishment of sediment environment model at tidal flat were carried out in this study to reproduce such a complex sediment dynamics. Other models for precipitation, hydrological runoff, rivers and coastal currents, sea surface wind fields, coastal waves, and open ocean environment, were bound as a collected large-scale numerical model system to construct a comprehensive analysis model for tidal flat sediments environment that was applied not only for historical environment reproduction but also prediction of the future tidal flat environment based on the output of near future climate change model.
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| Free Research Field |
海岸工学
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