| Presentation | 2007-10-26 A 3D analysis of MT data collected in Pohang, Korea Nuree HAN, Myung Jin NAM, Hee Joon KIM, Tae Jong LEE, 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) | Magnetotelluric (MT) surveys have been carried out in the low-enthalpy geothermal field in Pohang, Korea in 2002 and 2003. Preliminary three-dimensional (3D) inversion of MT data with static shifts was conducted using sensitivities for an initial homogeneous half-space, To analyze MT data more accurately, we use exact sensitivities and compare reconstructed images with those obtained by the inversion using only sensitivities for a homogeneous half-space. We also implement updated and approximated sensitivities to improve the effectiveness of the 3D inversion. In MT inversion, a suitable choice of static shift parameter is quite important because the removal of static shifts can effect to the inversion results throughout whole frequencies. Numerical experiments demonstrate that reconstructed resistivity images are comparable to resistivity logging results obtained near the center of the survey area. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Pohang / 3D / MT / inversion / sensitivity |
| Paper # | SANE2007-73 |
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| Conference Information | |
| 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) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
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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) | A 3D analysis of MT data collected in Pohang, Korea |
| Sub Title (in English) | |
| Keyword(1) | Pohang |
| Keyword(2) | 3D |
| Keyword(3) | MT |
| Keyword(4) | inversion |
| Keyword(5) | sensitivity |
| 1st Author's Name | Nuree HAN |
| 1st Author's Affiliation | Department of Civil, Urban and Geosystem Engineering, Seoul National University() |
| 2nd Author's Name | Myung Jin NAM |
| 2nd Author's Affiliation | Department of Petroleum and Geosystems Engineering, The University of Texas at Austin |
| 3rd Author's Name | Hee Joon KIM |
| 3rd Author's Affiliation | Department of Environmental Exploration Engineering, Pukyong National University |
| 4th Author's Name | Tae Jong LEE |
| 4th Author's Affiliation | Korea Institute of Geoscience and Mineral Resources |
| 5th Author's Name | Yoonho SONG |
| 5th Author's Affiliation | Korea Institute of Geoscience and Mineral Resources |
| 6th Author's Name | Jung Hee SUH |
| 6th Author's Affiliation | Formerly Seoul National University |
| Date | 2007-10-26 |
| Paper # | SANE2007-73 |
| Volume (vol) | vol.107 |
| Number (no) | 277 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |