Some Field Test Results of a High Accuracy MT System

Abstract

The "Development of A High Accuracy Magnetotelluric (MT) Method Exploration Technology" delegated by the New Energy Development Organization (NEDO), has been carried out by Geothermal Energy Research & Development Co., Ltd. (GERD) and Meisei Electric Co., Ltd. (MEC) as part of the "Confirmation study of the effectiveness of prospecting techniques for deep geothermal resources," one of the MITI's Sunshine proj ects, under a 5-year plan from FY 1984. It aims at the development and verification of portable, real time 4-point triplereference processing MT method exploration techniques that make possible to estimate accurate conductivity of the earth's interior even in the geothermal fields of Japan that are mountainous and noisy for MT survey. This paper will report the portable, real time 4-point triple-reference processing MT method exploration techniques that has been developed until FY 1987.