5:15 PM - 6:30 PM
[MIS03-P14] MT survey and its preliminary result at Boso Peninsula, Japan (2)
Keywords:MT method, Boso Peninsula
The preliminary 1-D inversion results for 41 induction sites show that we can presume apparent resistivity about 1 km - 10 km depth from the surface, but relatively not clear about 100 m - 1 km and 10 km - 100 km depth from the surface. In addition, we found that the noises tend to be weaker in the southern region compared to the northern region.
To presume resistivity structure in Boso Peninsula, it is necessary to remove the artificial noises from observed MT data. The observed noises have characteristics of transient signals and processes in time domain are required such as singular spectrum analysis. Moreover, twe will analyze the observed data of 12 stations in which we used fluxgate type magnetometer to obtain lower frequency and deeper information.