Antarctic F 2-region disturbances associated with geomagnetic storms

  1. A. H. Waynick
  1. Teruo Sato

Published Online: 14 MAR 2013

DOI: 10.1029/AR004p0101

Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise

Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise

How to Cite

Sato, T. (1965) Antarctic F 2-region disturbances associated with geomagnetic storms, in Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise (ed A. H. Waynick), American Geophysical Union, Washington, D. C.. doi: 10.1029/AR004p0101

Author Information

  1. Research and Advanced Development Division, AVCO Corporation, Wilmington, Massachusetts

Publication History

  1. Published Online: 14 MAR 2013
  2. Published Print: 1 JAN 1965

ISBN Information

Print ISBN: 9780875901046

Online ISBN: 9781118664537

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Keywords:

  • Current intensity;
  • Electron density;
  • Geomagnetic storms;
  • Ionospheric and geomagnetic data;
  • Synoptic variation patterns

Summary

Variations of the electron density in the antarctic F2 region associated with individual geomagnetic storms are analyzed and their cause studied. Analysis is performed on the basis of winter data when the solar radiation responsible for the production of ionization is negligible. The results show that areas of enhancement and reduction (from the monthly median value) of the electron density are, at least qualitatively, related to the current system of the actual geomagnetic variation minus the SD variation at the corresponding time. Thus, the cause of the F2-region storm-time variations can be ascribed to changes in the direction and magnitude of horizontal electron drift during storms. They also contribute to the electron distribution on quiet days and are caused by the interaction between the geomagnetic field and electric field associated with the current system.