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題名 | A Study of Joint Inversion of Direct Current Resistivity, Transient Electromagnetic and Magnetotelluric Sounding Data=併合地電阻法、暫態電磁法及大地電磁流法逆推之研究 |
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作者姓名(中文) | 楊潔豪; 董倫道; | 書刊名 | Terrestrial, Atmospheric and Oceanic Sciences |
卷期 | 10:1 1999.03[民88.03] |
頁次 | 頁293-301 |
分類號 | 350 |
關鍵詞 | 地電阻法; 暫態電磁法; 大地電磁流法; 逆推; DC; TEM and MT; Triple joint inversion; |
語文 | 英文(English) |
英文摘要 | Geoelectric methods have been widely used in the field of engineering and mineral exploration. Each method has its own advantage and disad- vantage in interpreting depth and electrical properties of underlying sub- surface. Combination of sounding data from various methods has been proved to be an effective way to improve reliability of interpretation as cited from many published literatures. Among them, several authors de- veloped intriguing schemes to simultaneously invert two sounding data col- lected from two different surveying methods into a geoelectric section. These studies show that the interpreted sections based on joint-inversion scheme are superior to those from inversion of single data set alone. This research is an extension of their work by inverting coincident loop transient electromagnetic (TEM) data, magnetotelluric (MT) data and Schiumberger sounding (DC) data simultaneously. An appropriate joint inversion scheme has been developed. Synthetic sounding data sets for DC, MT, and TEM based on a six-layer earth model were used to evaluate the performance of our scheme. Our study shows that the estimated model parameters from joint inversion of the triple data sets are more consistent with the hypothetical model than those derived by any inversion result us- ing DC, TEM, or MT data alone. Furthermore, our result also indicates that our proposed scheme is superior to the joint inversion scheme based on DC and MT, DC and TEM, or TEM and MT. |
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