Self-excitation of auroral arcs in a three-dimensionally coupled magnetosphere-ionosphere system
Self-excitation of auroral arcs in a three-dimensionally coupled magnetosphere-ionosphere system
复制标题
三维耦合磁层-电离层系统中极光弧的自激
DOI：
10.1029/gl015i007p00717
复制
发表时间：
1988
影响因子：
5.2
通讯作者：
Tetsuya Sato
中科院分区：
文献类型：
--
作者：
Kunihiko Watanabe;Tetsuya Sato
This paper presents the first full three-dimensional dynamic simulation of auroral arc formation. The magnetospheric and ionospheric dynamics are represented by one-fluid magnetohydrodynamic equations and two-fluid weakly ionized plasma equations, respectively. The feedback coupling between magnetospheric Alfven waves and ionospheric density waves results in a spontaneous generation of longitudinally elongated striations of field-aligned currents and ionospheric electron densities, which compare very well with many features of quiet auroral arcs.
