| Project/Area Number |
21510196
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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 |
Natural disaster science
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| Research Institution | Saga University |
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Principal Investigator |
HANDA Shun 佐賀大学, 農学部, 教授 (70156529)
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| Co-Investigator(Renkei-kenkyūsha) |
KITANURA Ryousuke 鹿児島大学, 工学部, 教授 (70111979)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | 国土保全 / 土砂災害 / 電磁探査 / 電気伝導度 |
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| Research Abstract |
The new system is developed for prospecting of conductivity anomalies in subsurface layers shallower than about 5m. This system with the simple electric circuits detects the phase difference between the horizontal and the vertical magnetic component of AM radio waves in the frequency range of 500k to1600kHz. The survey using this system is conducted on the bank of Ushizu River. In this survey, the large phase difference is found, which is well explained by a high conductivity layer possibly of ground water.
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