| Presentation | 2007-10-26 Interpretation of static-shifted 2D MT data observed in Jeju Island using 3D inversion Jihyang CHOI, Hee Joon KIM, Myun Jin NAM, Tae Jong LEE, Nuree HAN, Yoonho SONG, Jung Hee SUH, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Interpretation of three-dimensional (3D) complications with two-dimensional (2D) inversion easily produces spurious structures or unrealistic anomalies beneath the profile. Besides, traditional 2D interpretation utilizes only TM-mode data because TE-mode data are more easily distorted by possibly existing 3D anomalies. To reduce contamination due to off-profile 3D anomalies, and so to utilize the TE-mode data in the interpretation, a 3D inversion algorithm can be applied to 2D MT data along a single profile. In this study, we conduct 2D and 3D inversions of MT data observed along two lines in Jeju Island. After inverting MT data in the TM and TE modes, respectively, we perform both 2D-joint and 3D inversion of both TM- and TE-mode data. Even though resistivity images derived from all of the four methods demonstrate that the geoelectrical structure in Jeju Island is a three-layered earth with the resistive-conductive-resistive stratigraphy, a reconstructed image derived from 3D inversion gives a most reasonable feature beneath a 2D profile. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MT / Jeju / geoelectrical structure / joint 2D inversion / 3D inversion |
| Paper # | SANE2007-75 |
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| Committee | SANE |
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| Conference Date | 2007/10/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Interpretation of static-shifted 2D MT data observed in Jeju Island using 3D inversion |
| Sub Title (in English) | |
| Keyword(1) | MT |
| Keyword(2) | Jeju |
| Keyword(3) | geoelectrical structure |
| Keyword(4) | joint 2D inversion |
| Keyword(5) | 3D inversion |
| 1st Author's Name | Jihyang CHOI |
| 1st Author's Affiliation | Department of Civil, Urban and Geosystem Engineering, Seoul National University() |
| 2nd Author's Name | Hee Joon KIM |
| 2nd Author's Affiliation | Department of Environmental Exploration Engineering, Pukyong National University |
| 3rd Author's Name | Myun Jin NAM |
| 3rd Author's Affiliation | Department of Petroleum and Geosystem Engineering, The University of Texas at Austin |
| 4th Author's Name | Tae Jong LEE |
| 4th Author's Affiliation | Korea Institute of Geoscience and Mineral Resources |
| 5th Author's Name | Nuree HAN |
| 5th Author's Affiliation | Department of Environmental Exploration Engineering, Pukyong National University |
| 6th Author's Name | Yoonho SONG |
| 6th Author's Affiliation | Korea Institute of Geoscience and Mineral Resources |
| 7th Author's Name | Jung Hee SUH |
| 7th Author's Affiliation | Formerly Seoul National University |
| Date | 2007-10-26 |
| Paper # | SANE2007-75 |
| Volume (vol) | vol.107 |
| Number (no) | 277 |
| Page | pp.pp.- |
| #Pages | 6 |
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