Sediment movement in the watershed and tsunami sediment analysis based on luminescence measurement
| Project/Area Number |
24246085
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hydraulic engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SATO Shinji 東京大学, 大学院工学系研究科(工学部), 教授 (90170753)
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| Co-Investigator(Kenkyū-buntansha) |
田島 芳満 東京大学, 工学(系)研究科(研究院), 教授 (20420242)
下園 武範 東京大学, 工学(系)研究科(研究院), 准教授 (70452042)
劉 海江 東京大学, 工学(系)研究科(研究院), 准教授 (10600679)
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| Research Collaborator |
LIU Haijiang 浙江大学, 教授
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| Project Period (FY) |
2012-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥45,500,000 (Direct Cost: ¥35,000,000、Indirect Cost: ¥10,500,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥22,750,000 (Direct Cost: ¥17,500,000、Indirect Cost: ¥5,250,000)
Fiscal Year 2012: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
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| Keywords | 漂砂 / 流砂 / 土砂管理 / 歴史津波 / ルミネッセンス分析 / 海岸侵食 / ルミネッセンス計測 / 海岸工学 / 津波 / 土砂移動 / 堆積過程 / 年代分析 |
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| Outline of Final Research Achievements |
In order to mitigate coastal erosion prevailing all over the world, it is essential to estimate sediment movement in the watershed scale, since sediment delivery from land to ocean must be influenced by the watershed scale. This study aims at the development of a framework in which sediment movement is estimated by using luminescence measurement of sediment particles. The luminescence of sediment grains is considered to reflect the exposure time to light during the sediment movement. The sediment transport rate is estimated by combining the luminescence property with light exposure model.
Based on the luminescence measurement, an innovative technology has been developed to estimate sediment movement in the watershed scale. The methodology was found to be applicable to identify the sediment deposition due to historic tsunamis. The validity of the skill was confirmed by a series of field studies conducted at Sendai, Kirikiri, Fukui, Yonago and Miyazaki Coasts.
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Report
(6 results)
Research Products
(8 results)
