| Presentation | 1995/7/27 Two-dimensional finite-volume modeling of diffusion of electromagnetic fields from a horizontal current dipole source oriented to the strike direction Yuji Mitsuhata, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The author has developed an implicit time domain 2-D modeling algorithm to model the diffusion of electromagnetic fields. A 2-D earth whose resistivity is invariant in y-direction is considered, and an electric current dipole source is oriented to the strike direction. The derivation of linear equations is based on a finite-volume method. Then responses to step current transmitted into the electric dipole are calculated in an implicit manner using the Crank-Nicholson approach. Numerical solutions calculated by the finite-volume method for a homogeneous half-space and a horizontal three-layer earth were proved to be accurate by comparison with the analytical solutions and 1-D modeling solutions. Furthermore, the application of 1-D least-squares inversion to synthetic data for a 2-D model were examined. As a result, the limitation of the application of 1-D least-squares was revealed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | TDEM method / electric current dipole source / diffusion of electromagnetic fields / finite-volume method |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 1995/7/27(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Two-dimensional finite-volume modeling of diffusion of electromagnetic fields from a horizontal current dipole source oriented to the strike direction |
| Sub Title (in English) | |
| Keyword(1) | TDEM method |
| Keyword(2) | electric current dipole source |
| Keyword(3) | diffusion of electromagnetic fields |
| Keyword(4) | finite-volume method |
| 1st Author's Name | Yuji Mitsuhata |
| 1st Author's Affiliation | Technology Research Center, Japan National Oil Corporation() |
| Date | 1995/7/27 |
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| Volume (vol) | vol.95 |
| Number (no) | 190 |
| Page | pp.pp.- |
| #Pages | 7 |
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