Dynamical effects of ionospheric conductivity on the formation of polar cap arcs
Article first published online: 7 DEC 2012
Copyright 1998 by the American Geophysical Union.
Volume 33, Issue 6, pages 1929–1937, November-December 1998
How to Cite
1998), Dynamical effects of ionospheric conductivity on the formation of polar cap arcs, Radio Sci., 33(6), 1929–1937, doi:10.1029/98RS01849., , , and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 1 JUN 1998
- Manuscript Received: 28 JAN 1998
By using a magnetosphere-ionosphere (M-I) coupling model of polar cap arcs [Zhu et al., 1993], a systematic model study of the effects of ionospheric background conductivity on the formation of polar cap arcs has been conducted. The variations of the ionospheric background conductivity in the model study cover typical ionospheric conditions, including solar minimum, solar maximum, winter, and summer. The simulation results clearly indicate that the ionospheric background conductivity can dynamically affect the mesoscale features of polar cap arcs through a nonlinear M-I coupling process associated with the arcs.