Simulations of a QuasiTaylor State Geomagnetic Field Including Polarity Reversals on the Earth Simulator
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- Futoshi Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, Japan.
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- Masaki Matsushima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, Japan.
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- Yoshimori Honkura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, Japan.
書誌事項
- 公開日
- 2005-07-15
- DOI
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- 10.1126/science.1111831
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:p>High-resolution, low-viscosity geodynamo simulations have been carried out on the Earth Simulator, one of the fastest supercomputers, in a dynamic regime similar to that of Earth's core, that is, in a quasi–Taylor state. Our dynamo models exhibit features of the geodynamo not only in spatial and temporal characteristics but also in dynamics. Polarity reversals occurred when magnetic flux patches at high latitudes moved poleward and disappeared; patches with reversed field at low and mid-latitudes then moved poleward.</jats:p>
収録刊行物
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- Science
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Science 309 (5733), 459-461, 2005-07-15
American Association for the Advancement of Science (AAAS)
