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[HTT26-06] Resistivity monitoring of water-leaking paddy field filled with water
Keywords:Resistivity monitoring, water-leaking paddy field, earthquake
In this study, resistivity monitoring of a water-leaking paddy field filled with water was conducted. A resistivity change derived from 2D inversion of resistivity survey data was small beneath the paddy field and the resistivity beneath the bank of the paddy decreased 4 hr. after the start of filling with water. Since some rain occurred before the filling test, there was a possibility that the high saturation level caused no change beneath the paddy field. However, the resistivity beneath the paddy flied decrease 24 hr. after the start of filling with water.
These results suggest that the leakage occurred beneath the bank of the paddy rather than beneath the paddy field.
This work was financially supported in part by Science and technology research promotion program for agriculture, forestry, fisheries and food industry.