Polar and Magnetospheric Substorms

  • Syun-Ichi Akasofu

Part of the Astrophysics and Space Science Library book series (ASSL, volume 11)

Table of contents

  1. Front Matter
    Pages I-XVIII
  2. Syun-Ichi Akasofu
    Pages 1-21
  3. Syun-Ichi Akasofu
    Pages 49-72
  4. Syun-Ichi Akasofu
    Pages 73-109
  5. Syun-Ichi Akasofu
    Pages 110-125
  6. Syun-Ichi Akasofu
    Pages 126-139
  7. Syun-Ichi Akasofu
    Pages 140-154
  8. Syun-Ichi Akasofu
    Pages 155-173
  9. Syun-Ichi Akasofu
    Pages 174-211
  10. Syun-Ichi Akasofu
    Pages 212-253
  11. Back Matter
    Pages 255-280

About this book


It has become increasingly clear that the magnetosphere becomes intermittently unstable and explosively releases a large amount of energy into the polar upper atmos­ phere. This particular magnetospheric phenomenon is called the magnetospheric sub­ storm. It is manifested as an activity or disturbance ofvarious polar upper atmospheric phenomena, such as intense auroral displays and X-ray bursts. Highly active conditions in the polar upper atmosphere result from a successive occurrence of such an element­ ary activity, the polar substorm, which lasts typically of order one to three hours. The concept of the magnetospheric substorm and its manifestation in the polar upper atmosphere, the polar substorm, has rapidly crystallized during the last few years. We can find a hint of such a concept in the term 'polar elementary storm' introduced by Kristian Birkeland as early as 1908. However, we are greatly indebted to Sydney Chapman, who established the basic foundation of magnetospheric physics and has led researches in this field during the last half century. Indeed, the terms 'polar magnetic substorm' and 'auroral substorm' were first suggested by Sydney Chapman. The concept of the substorm was then soon extended by Neil M. Brice of Cornell University, and Kinsey A. Anderson and his colleagues at the University ofCaliforrlia, Berkeley, who introduced the term 'magnetospheric substorm'. We owe many of these recent developments in magnetospheric physics to the great international enterprise, the International Geophysical Year (IGY) and subse­ quent international cooperative effort (IGC, IQSY).


Variation aurora ionosphere magnetosphere solar wind

Authors and affiliations

  • Syun-Ichi Akasofu
    • 1
  1. 1.Geophysical InstituteUniversity of AlaskaCollegeUSA

Bibliographic information

  • DOI
  • Copyright Information Springer Science+Business Media B.V. 1968
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-010-3463-0
  • Online ISBN 978-94-010-3461-6
  • Series Print ISSN 0067-0057
  • Buy this book on publisher's site