Simulations of a quasi-Taylor state geomagnetic field including polarity reversals on the Earth Simulator

被引：75
|
作者：
Takahashi, F
Matsushima, M
Honkura, Y
机构：
[1] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Kanagawa, Japan
[2] Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, Tokyo 152, Japan
来源：
SCIENCE | 2005年 / 309卷 / 5733期
关键词：
D O I：
10.1126/science.1111831
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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.
引用
收藏
页码：459 / 461
页数：3
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