Relating thin current sheet formation and tail reconnection to substorm development

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Observations and simulations have demonstrated the important role of thin current sheet formation and magnetic reconnection in the course of substorms. We discuss new results on the formation of thin current sheets, obtained both within MHD and kinetic theory. They demonstrate when kinetic effects become important and indicate the possibility of a catastrophic onset of substorm dynamics and the potential association with arc brightening. MHD simulations show the role of reconnection in the buildup of the substorm current wedge and the influence of the underlying configuration on the quasi-static and dynamic evolution.

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8 p.

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Birn, J. (Joachim) & Schindler, K. January 1, 2002.

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Description

Observations and simulations have demonstrated the important role of thin current sheet formation and magnetic reconnection in the course of substorms. We discuss new results on the formation of thin current sheets, obtained both within MHD and kinetic theory. They demonstrate when kinetic effects become important and indicate the possibility of a catastrophic onset of substorm dynamics and the potential association with arc brightening. MHD simulations show the role of reconnection in the buildup of the substorm current wedge and the influence of the underlying configuration on the quasi-static and dynamic evolution.

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8 p.

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  • Submitted to: International Conference on Substorms

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  • Report No.: LA-UR-02-3973
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976216
  • Archival Resource Key: ark:/67531/metadc933153

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2002

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 4:47 p.m.

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Birn, J. (Joachim) & Schindler, K. Relating thin current sheet formation and tail reconnection to substorm development, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc933153/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.