|
| | Abstract | | VLF-EM method has been used for detecting subsurface resistivity anomalies. However, because the source that has been used for the method is unstable, the VLF method is not so widespread. JJY which is more stable than VLF has been used to broadcast the standard Japanese time, so that it would be more suitable for the exploration of underground structure. In our study, we applied numerical experiments to reveal the characteristic of subsurface exploration using JJY. In addition, by applying the Fraser filter, when the model is simple, we obtain a rough resistivity profile of the underground according to magnetic field strength obtained by the numerical calculation. And, we also confirmed that we receive the JJY electric wave. for real data analysis. Moreover, we examined the possibility of the imaging the buried object. |
|
|
|
| |
|