| 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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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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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 / 粘着性底泥 / 海洋再解析データ / 気象再解析データ / メソ気象モデル / 干潟環境 / 干潟 / 底質 / 水質 / バロクリニック流動 / 水文流出 / 準3次元海洋モデル / 流動性底泥層 |
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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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