Consideration on the evaluation of uncertainly for the MT 2-D image

Negi, Tateyuki; Umeda, Koji; Asamori, Koichi

MT-survey is used to be applied to the investigation of the geothermal resource, mineral resource, and oil. In recent years MT-survey has also been recognized as an effective method for the investigation of deep geological environments. However, due to the nature of magnetotulluric source, it is difficult to maintain data quality at all time in extremely noisy environment. Furthermore, expansion of urban area will provide an opportunity to acquire MT data in such environment. Therefore, it is important to be able to evaluate the uncertainly of inversion result using poor quality data. We show the new method of the uncertainly assessment of MT inversion results.