| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Research Abstract |
Understanding of groundwater flow pattern is big issue in science, engineering and agriculture. We focus on the self potential (natural electrical potential) on the surface, which can be generated by groundwater flow. In this study, we developed the numerical forward codes for calculations of the groundwater flow and self-potential distributions. An inverse scheme of hydraulic structure by using the self-potential data is also constructed. The numerical feasibility studies strongly suggested the possibility to image the subsurface hydraulic heterogeneity. Then, we adopted our numerical technique for analyzing the real field data of self-potential. As a result, we succeed in getting a reasonable hydraulic structures from the self-potential data. Our new scheme for analysis of self-potential will be helpful for understanding the subsurface fluid flow.
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