|
| | Abstract | | In a paddy field damaged by the 2016 Kumamoto earthquake in Japan, the amount of leakage from the paddy field increased, although the location of infiltration was not observed. To detect leakage locations, three-dimensional (3D) resistivity monitoring of water leaking from the paddy field was conducted during water filling experiment. Resistivity changes from 3D inversions found to be small beneath the paddy field, and the resistivity beneath the bank of the paddy field decreased 2 hrs. after the field was filled with water. This change corresponds to the change in volume water content measured at the banks. The results of 3D inversion of in-line data showed similar resistivity change as that of 3D data. These results suggest that the leakage occurred beneath the bank of the paddy field rather than beneath the paddy field itself at early stage of water filling. |
|
|
|
| |
|