Validation and establishment of new technology for streamflow measurement using acoustic tomography
| Project/Area Number |
23360214
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Hiroshima University |
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Principal Investigator |
KAWANISI Kiyosi 広島大学, 工学(系)研究科(研究院), 准教授 (40144878)
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| Co-Investigator(Kenkyū-buntansha) |
KANEKO Arata 広島大学, 大学院・工学研究科, 教授 (10038101)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2011: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
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| Keywords | 河川流量 / 洪水 / 水資源 / 水循環 / 音響トモグラフィー / 水工学 |
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| Research Abstract |
The acquisition of continuous measurements of river discharge is a high-priority issue for water resource management, and the real-time knowledge of river discharge is an environmental, social, and economic asset. Therefore, establishing a method and/or technology for quantifying discharge is of paramount importance.
Fluvial Acoustic Tomography System (FATS): a state-of-the-art acoustic system was developed. Continuous measurements of the flow rate were conducted in an tidal estuary and an gravel-bed river using FATS. FATS equipped with a couple of broadband transducers with horizontally omnidirectional and vertically hemispherical beam patterns can be used to estimate the flow rate from multiple ray paths that cover the cross-section of a stream.
The present study strongly suggest that FATS is a reliable and accurate technique for the long-term measurement of river discharge, even in shallow, wide rivers or tidal estuaries with salinity intrusions.
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Report
(4 results)
Research Products
(50 results)
