Energy requirement of magnetic reconnection during magnetospheric substorms

DN Baker, T.I. Pulkkinen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Methods are discussed to estimate energy transfer from the solar wind to the magnetosphere during substorm growth phases. Observational and modeling constraints are then used to assess quantitatively the total amount of energy stored in the magnetotail. The major avenues of energy dissipation are examined and the energy that is released in the form of plasma sheet heating, ionospheric Joule heating, plasmoids, and energetic particle production during substorms is assessed. Energy sources are evaluated to drive substorm evolution in a particularly well-observed case: stored tail-lobe energy is sufficient to drive observed substorm dissipation processes (by large margins). On the other hand, energy in the closed field lines of the plasma sheet is insufficient to supply the substorm energy. Hence, magnetic reconnection is required on energy grounds during well-observed substorm cases. (C) 1997 COSPAR. Published by Elsevier Science Ltd.

Original languageEnglish
Title of host publicationRECONNECTION IN THE SOLAR CORONA AND MAGNETOSPHERIC SUBSTORMS
EditorsER Priest, DN Baker
Pages1923-1927
Number of pages5
Publication statusPublished - 1997
MoE publication typeA4 Article in a conference publication
EventDO 4 Symposium of COSPAR Scientific Commission D on Reconnection in the Solar Corona and Magnetospheric Substorms - Birmingham, United Kingdom
Duration: 14 Jul 199621 Jul 1996

Publication series

NameADVANCES IN SPACE RESEARCH-SERIES
PublisherPERGAMON PRESS LTD
Volume19
ISSN (Print)0273-1177

Conference

ConferenceDO 4 Symposium of COSPAR Scientific Commission D on Reconnection in the Solar Corona and Magnetospheric Substorms
CountryUnited Kingdom
CityBirmingham
Period14/07/199621/07/1996
OtherHeld at the 31st COSPAR Scientific Assembly

Keywords

  • CURRENT SHEET
  • GROWTH-PHASE
  • AURORAL OVAL
  • MODEL
  • SATELLITE
  • CDAW-9
  • TAIL

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