Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.585 IF 1.585
  • IF 5-year value: 1.698 IF 5-year
    1.698
  • CiteScore value: 1.62 CiteScore
    1.62
  • SNIP value: 0.820 SNIP 0.820
  • IPP value: 1.52 IPP 1.52
  • SJR value: 0.781 SJR 0.781
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 83 Scimago H
    index 83
  • h5-index value: 24 h5-index 24
Volume 24, issue 12
Ann. Geophys., 24, 3547–3556, 2006
https://doi.org/10.5194/angeo-24-3547-2006
© Author(s) 2006. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 24, 3547–3556, 2006
https://doi.org/10.5194/angeo-24-3547-2006
© Author(s) 2006. This work is distributed under
the Creative Commons Attribution 3.0 License.

  21 Dec 2006

21 Dec 2006

Energetic ion injection and formation of the storm-time symmetric ring current

L. Xie1, Z. Y. Pu1, X. Z. Zhou1, S. Y. Fu1, Q.-G. Zong2, and M. H. Hong3 L. Xie et al.
  • 1School of Earth and Space Sciences, Peking University, Beijing, 100871, China
  • 2Center for Space Physics, Boston University, Boston, 02215, USA
  • 3Institute of Geology and Geophysics, Chinese Academy of Science, 100029, China

Abstract. An extensive study of ring current injection and intensification of the storm-time ring current is conducted with three-dimensional (3-D) test particle trajectory calculations (TPTCs). The TPTCs reveal more accurately the process of ring current injection, with the main results being the following: (1) an intense convection electric field can effectively energize and inject plasma sheet particles into the ring current region within 1–3 h. (2) Injected ions often follow chaotic trajectories in non-adiabatic regions, which may have implications in storm and ring current physics. (3) The shielding electric field, which arises as a consequence of enhanced convection and co-exists with the injection and convection electric field, may cause the original open trajectories of injected ions with higher energy to change into closed ones, thus playing a role in the formation of the symmetric ring current.

Publications Copernicus
Download
Citation