Simulation study of near-Earth space disturbances: 1. magnetic storms

• Ebihara, Yusuke

Abstract

A magnetic storm is the world-wide geomagnetic disturbance taking place in near-Earth space environment, lasting for a few days. Geomagnetic fields can be depressed by ~ 1% on the ground for large magnetic storms. The prime cause of the long-lasting, world-wide geomagnetic disturbance is the development of the ring current that surrounds the Earth. The ring current is an electric current carried by charged particles. Thus, the growth and decay of the ring current correspond to accumulation and loss of the ring current particles, respectively. The ring current is strong enough to modulate near-Earth space environment, and leads to many observable effects. In this sense, the ring current can be regarded as an important mediator in the near-Earth space environment. Here, the dynamics and structure of the ring current and its active role are briefly reviewed on the basis of numerical simulation results.

Journal

• Progress in Earth and Planetary Science

  Progress in Earth and Planetary Science 6 2019

  Springer Nature

Keywords

• Magnetic storms
• Computer simulation
• Magnetosphere
• Ionosphere
• Inner magnetosphere
• Ring current

Details

• CRID: 1050282813186026624
• NII Article ID: 120006576447
• ISSN: 21974284
• DOI: 10.1186/s40645-019-0264-3
• HANDLE: 2433/236642
• Web Site: http://link.springer.com/content/pdf/10.1186/s40645-019-0264-3.pdf
• Web Site: http://link.springer.com/article/10.1186/s40645-019-0264-3/fulltext.html
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN