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The Role and Contributions of Energetic Neutral Atom (ENA) Imaging in Magnetospheric Substorm Research

  • C. J. Pollock
  • P. C:Son-Brandt
  • J. L. Burch
  • M. G. Henderson
  • J.-M. Jahn
  • D. J. Mccomas
  • S. B. Mende
  • D. G. Mitchell
  • G. D. Reeves
  • E. E. Scime
  • R. M. Skoug
  • M. Thomsen
  • P. Valek
Chapter

Abstract

Energetic Neutral Atom (ENA) imaging has contributed substantially to substorm research. This technique has allowed significant advances in areas such as observation and quantification of injected particle drift as a function of energy, observation of dynamics in the tail that are directly related to the effects of imposed (growth phase) and induced (expansion phase) electric fields on the plasma, the prompt extraction of oxygen from the ionosphere during substorms, the relationship between storms and substorms, and the timing of substorm ENA signatures. We present discussion of the advantages and shortcomings of the ENA technique for studying space plasmas. Although the technique is in its infancy, it is yielding results that enrich our understanding of the substorm process and its effects.

Keywords

Solar Wind Interplanetary Magnetic Field Geomagnetic Storm Plasma Sheet Substorm Onset 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • C. J. Pollock
    • 1
  • P. C:Son-Brandt
    • 2
  • J. L. Burch
    • 1
  • M. G. Henderson
    • 3
  • J.-M. Jahn
    • 1
  • D. J. Mccomas
    • 1
  • S. B. Mende
    • 4
  • D. G. Mitchell
    • 2
  • G. D. Reeves
    • 3
  • E. E. Scime
    • 5
  • R. M. Skoug
    • 3
  • M. Thomsen
    • 3
  • P. Valek
    • 1
  1. 1.Southwest Research InstituteUSA
  2. 2.Johns Hopkins University Applied Physics LaboratoryUSA
  3. 3.Los Alamos National LaboratoryUSA
  4. 4.University of California at BerkeleyUSA
  5. 5.West Virginia UniversityUSA

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